Ceryx Medical: company uses bioelectronics to coordinate the heart and lungs
Heart failure is a serious condition that occurs when a damaged heart loses its ability to pump blood around the body. It affects as many as 100 million people worldwide and it is a progressive disease such that five years after a diagnosis, 50% of patients with heart failure will be dead.
The UK-based company Ceryx Medical has created a new bioelectronic device called Cysoni, which is designed to adjust the pace of the heart as a patient breathes in and out. This mimics a normal physiological process called respiratory sinus arrhythmia, which can be absent in people with heart failure. The company has just began the first trial of Cysoni on human subjects.
This podcast features the biomedical engineer Stuart Plant and the physicist Ashok Chauhan, who are Ceryx Medical’s CEO and senior scientist respectively. In a wide-ranging conversation with Physics World’s Margaret Harris, they talk about how bioelectronics could be used treat heart failure and some other diseases. Chauhan and Plant also chat about challenges and rewards of developing medical technologies within a small company.
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1 00:00:07,599 --> 00:00:10,559 Hello, and welcome to the Physics World Weekly 2 00:00:10,559 --> 00:00:11,059 podcast. 3 00:00:11,839 --> 00:00:14,234 Heart failure is a serious condition 4 00:00:14,535 --> 00:00:16,394 in which a damaged heart 5 00:00:16,695 --> 00:00:19,814 loses its ability to pump blood around the 6 00:00:19,814 --> 00:00:20,314 body. 7 00:00:21,094 --> 00:00:23,434 The damage usually gets progressively 8 00:00:23,894 --> 00:00:24,394 worse 9 00:00:24,789 --> 00:00:27,210 so that 5 years after a diagnosis, 10 00:00:27,989 --> 00:00:28,969 about 50% 11 00:00:29,349 --> 00:00:30,089 of patients 12 00:00:30,469 --> 00:00:32,729 with heart failure will be dead. 13 00:00:33,590 --> 00:00:36,649 The disease affects as many as a 100,000,000 14 00:00:37,189 --> 00:00:37,689 people 15 00:00:38,070 --> 00:00:38,570 worldwide. 16 00:00:39,255 --> 00:00:40,314 And in the UK, 17 00:00:40,774 --> 00:00:43,434 about 1 to 2 percent of the National 18 00:00:43,814 --> 00:00:47,574 Health Service budget is spent on managing the 19 00:00:47,574 --> 00:00:48,074 disease, 20 00:00:48,695 --> 00:00:50,234 with most of the expenditure 21 00:00:50,774 --> 00:00:51,994 related to hospitalization. 22 00:00:53,740 --> 00:00:55,920 So it's not surprising that scientists 23 00:00:56,380 --> 00:00:59,100 are looking for new ways to improve the 24 00:00:59,100 --> 00:01:01,600 outlook for people with heart failure 25 00:01:01,980 --> 00:01:04,319 and perhaps even cure the disease. 26 00:01:05,420 --> 00:01:07,680 This podcast features the biomedical 27 00:01:08,060 --> 00:01:08,560 engineer, 28 00:01:09,234 --> 00:01:10,135 Stuart Plant, 29 00:01:10,674 --> 00:01:11,494 and the physicist, 30 00:01:12,114 --> 00:01:12,614 Ashok 31 00:01:12,915 --> 00:01:13,415 Chowhin, 32 00:01:14,194 --> 00:01:16,215 who work for Sirix Medical, 33 00:01:16,994 --> 00:01:20,614 a UK based company that's developed a bioelectronic 34 00:01:21,634 --> 00:01:24,760 system that helps patients with heart failure. 35 00:01:25,620 --> 00:01:27,560 Stewart is the company's CEO, 36 00:01:28,260 --> 00:01:29,079 and Ashok 37 00:01:29,380 --> 00:01:31,159 is its senior scientist. 38 00:01:32,020 --> 00:01:33,719 Here they are in conversation 39 00:01:34,020 --> 00:01:36,600 with Physics World's Margaret Harris. 40 00:01:37,295 --> 00:01:39,694 As well as chatting about the company's work 41 00:01:39,694 --> 00:01:41,234 on treating heart failure, 42 00:01:41,774 --> 00:01:45,155 Ashok and Stewart also talk about other applications 43 00:01:45,694 --> 00:01:46,594 of bioelectronics 44 00:01:47,614 --> 00:01:49,554 and the challenges and rewards 45 00:01:50,079 --> 00:01:50,900 of developing 46 00:01:51,280 --> 00:01:52,259 medical technologies 47 00:01:52,799 --> 00:01:54,259 within a small company. 48 00:02:02,384 --> 00:02:03,125 Okay. So 49 00:02:03,744 --> 00:02:05,284 first question, Stuart. 50 00:02:05,744 --> 00:02:08,544 What medical problem is CERiX trying to address 51 00:02:08,544 --> 00:02:09,044 here? 52 00:02:10,064 --> 00:02:11,284 Well, the first, 53 00:02:11,745 --> 00:02:13,824 medical problem we're looking to address, and there 54 00:02:13,824 --> 00:02:14,805 are actually multiple 55 00:02:15,104 --> 00:02:15,604 applications 56 00:02:15,930 --> 00:02:18,009 for our technology. But in the first instance, 57 00:02:18,009 --> 00:02:19,629 we're looking at a disease called 58 00:02:20,009 --> 00:02:20,909 called heart failure. 59 00:02:22,169 --> 00:02:24,269 Now heart failure occurs when you've had, 60 00:02:25,289 --> 00:02:27,789 you know, heart attack, you've had chronic hypertension. 61 00:02:28,415 --> 00:02:29,855 Maybe, you know, these days you have to 62 00:02:29,855 --> 00:02:30,754 think about COVID 63 00:02:31,055 --> 00:02:33,534 and infections that that can affect the the 64 00:02:33,534 --> 00:02:36,194 muscle of the of the heart. But basically 65 00:02:36,254 --> 00:02:38,974 some incident has caused caused damage to the 66 00:02:38,974 --> 00:02:40,115 heart and the muscle 67 00:02:40,415 --> 00:02:42,735 has been has been damaged. Some of it 68 00:02:42,735 --> 00:02:44,730 may have died. Some of it has become 69 00:02:44,730 --> 00:02:45,230 dysfunctional 70 00:02:45,770 --> 00:02:47,069 or at least immobile, 71 00:02:47,449 --> 00:02:49,530 but your heart basically can't work as, as 72 00:02:49,530 --> 00:02:51,389 well as it, as it once did. 73 00:02:52,330 --> 00:02:54,330 So it means that it's not supplying as 74 00:02:54,330 --> 00:02:55,629 much blood to the body 75 00:02:56,010 --> 00:02:58,455 and your body doesn't like this. So it 76 00:02:58,455 --> 00:02:59,275 kind of 77 00:03:00,534 --> 00:03:03,334 activates various compensatory mechanisms. It will push your 78 00:03:03,334 --> 00:03:05,594 blood pressure up and increase the volume of, 79 00:03:05,735 --> 00:03:07,275 of, of fluid basically 80 00:03:08,614 --> 00:03:10,215 in your body. And it will cause your 81 00:03:10,215 --> 00:03:11,655 heart to beat harder and it will cause 82 00:03:11,655 --> 00:03:13,229 it to be beat faster. 83 00:03:14,030 --> 00:03:16,669 Now this is one of the nature's quite 84 00:03:16,669 --> 00:03:18,509 good at these types of mechanisms. And it 85 00:03:18,509 --> 00:03:21,469 does, it does provide compensation for that decrease 86 00:03:21,469 --> 00:03:23,389 in cardiac output from the, from the damaged, 87 00:03:23,389 --> 00:03:25,789 damaged heart. So it is kind of restoring 88 00:03:25,789 --> 00:03:27,604 its blood supply. But now you've got a 89 00:03:27,604 --> 00:03:29,444 heart which is damaged already, which has been 90 00:03:29,444 --> 00:03:30,664 made to work harder. 91 00:03:31,685 --> 00:03:33,284 And as with any muscle, if you don't 92 00:03:33,284 --> 00:03:35,044 rest it, once it's been damaged, the the 93 00:03:35,044 --> 00:03:36,264 injury just gets worse. 94 00:03:36,644 --> 00:03:38,724 So heart failure occurs when the body reacts 95 00:03:38,724 --> 00:03:40,824 to this initial initial injury 96 00:03:41,490 --> 00:03:43,490 and drives the heart on. And then over 97 00:03:43,490 --> 00:03:45,250 a period of time, that injury just gets 98 00:03:45,250 --> 00:03:47,330 worse and worse and worse. And the structure 99 00:03:47,330 --> 00:03:48,389 of the heart becomes 100 00:03:48,770 --> 00:03:49,590 more abnormal 101 00:03:49,889 --> 00:03:51,650 and the function of the heart just becomes 102 00:03:51,650 --> 00:03:53,810 poorer and poorer. And what this means for 103 00:03:53,810 --> 00:03:56,474 patients is that eventually they start to experience 104 00:03:56,474 --> 00:03:59,034 feelings of breathlessness. They can't exercise in the 105 00:03:59,034 --> 00:04:01,275 way that they once they once did. But 106 00:04:01,275 --> 00:04:03,275 as the heart gets worse and worse, eventually 107 00:04:03,275 --> 00:04:04,715 you can't even get out of a chair. 108 00:04:04,715 --> 00:04:07,215 Making a cup of tea becomes exhausting exhausting. 109 00:04:08,250 --> 00:04:10,009 And ultimately, these patients, you know, they end 110 00:04:10,009 --> 00:04:12,169 up on oxygen 24 hours a day. They 111 00:04:12,169 --> 00:04:13,229 end up in bed. 112 00:04:13,610 --> 00:04:15,530 They end up in hospice care. And then 113 00:04:15,530 --> 00:04:17,930 unless they get something extreme like a heart 114 00:04:17,930 --> 00:04:19,709 transplant or maybe a, 115 00:04:21,209 --> 00:04:23,069 an LVAD heart pump device, 116 00:04:23,464 --> 00:04:25,724 ultimately, they'll they'll sadly, they'll die. 117 00:04:26,985 --> 00:04:28,745 So at the moment, there's about, you know, 118 00:04:28,745 --> 00:04:30,104 if, I mean, if you Google it, it's 119 00:04:30,185 --> 00:04:31,644 it says that there's about 30,000,000 120 00:04:32,104 --> 00:04:34,524 people in the world with with heart failure. 121 00:04:34,745 --> 00:04:35,964 That's a bit of a European 122 00:04:36,504 --> 00:04:37,084 US centric 123 00:04:37,470 --> 00:04:39,470 number, right, I'd say. I mean, on average, 124 00:04:39,470 --> 00:04:41,870 there's about 2% of the adult population has 125 00:04:41,870 --> 00:04:43,470 heart failure. So it's probably more like a 126 00:04:43,470 --> 00:04:44,930 100,000,000 people worldwide 127 00:04:45,550 --> 00:04:46,770 currently have heart failure. 128 00:04:47,310 --> 00:04:49,550 And the survival rates for these patients are 129 00:04:49,550 --> 00:04:51,644 pretty poor. So on average, 130 00:04:52,185 --> 00:04:54,824 5 years after diagnosis, 50% of the patients 131 00:04:54,824 --> 00:04:55,725 with heart failure 132 00:04:56,104 --> 00:04:58,024 will be dead. And in fact, in the 133 00:04:58,024 --> 00:05:01,245 1st year, 30% will will probably die 134 00:05:01,625 --> 00:05:03,004 after the initial diagnosis. 135 00:05:04,479 --> 00:05:07,219 Moment the, you know, medications are directed towards, 136 00:05:08,079 --> 00:05:09,680 you know, trying to control the symptoms of 137 00:05:09,680 --> 00:05:11,939 heart failure. So they'll try and, you know, 138 00:05:14,159 --> 00:05:16,319 give you a better quality of life, improve 139 00:05:16,319 --> 00:05:18,574 your exercise tolerance. And a lot of them 140 00:05:18,574 --> 00:05:21,055 are trying to, you know, maybe slow the 141 00:05:21,055 --> 00:05:22,654 heart down. They give you beta blockers, slow 142 00:05:22,654 --> 00:05:24,254 the heart down. They'll give you ACE inhibitors, 143 00:05:24,254 --> 00:05:25,774 dilate your blood vessels. And that's trying to 144 00:05:25,774 --> 00:05:27,634 relieve the strain on the heart. So trying 145 00:05:27,694 --> 00:05:29,535 to release the extra strain on the heart 146 00:05:29,535 --> 00:05:30,514 and try and prolong 147 00:05:31,000 --> 00:05:32,759 the, the lifespan of the, of the heart 148 00:05:32,759 --> 00:05:34,519 itself. But they're not really getting to the 149 00:05:34,519 --> 00:05:37,019 core of the disease itself and trying to, 150 00:05:37,079 --> 00:05:38,139 trying to treat 151 00:05:38,600 --> 00:05:40,699 and basically reverse and cure this disease. 152 00:05:41,079 --> 00:05:42,919 And that's why Ceryx is, is a, is 153 00:05:42,919 --> 00:05:43,740 a bit different. 154 00:05:44,295 --> 00:05:46,055 So you've talked a little bit about what 155 00:05:46,055 --> 00:05:48,314 the existing treatment is in terms of oxygen, 156 00:05:48,615 --> 00:05:51,415 ultimately a heart transplant or a physical device 157 00:05:51,415 --> 00:05:53,355 to help the heart continue to beat. 158 00:05:53,975 --> 00:05:56,694 How is Ceryx's technology different from that? How 159 00:05:56,694 --> 00:05:58,214 is your solution different from that, I should 160 00:05:58,214 --> 00:05:58,714 say? 161 00:05:59,139 --> 00:06:02,740 Well, CERECS came to this problem, I I 162 00:06:02,740 --> 00:06:04,420 suppose in a bit of a convoluted way, 163 00:06:04,420 --> 00:06:05,720 really, to be honest. I mean, 164 00:06:07,699 --> 00:06:09,939 I I I we're 2 academic founders. 1 165 00:06:09,939 --> 00:06:12,259 was a cardiac physiologist in Bristol, and he 166 00:06:12,259 --> 00:06:13,480 was studying a phenomenon 167 00:06:13,834 --> 00:06:15,615 called respiratory sinus arrhythmia. 168 00:06:16,074 --> 00:06:18,714 Now this is a natural synchronisation between the 169 00:06:18,714 --> 00:06:20,074 heart and the lungs. Your heart and the 170 00:06:20,074 --> 00:06:22,154 lungs are linked. So that when we're, when 171 00:06:22,154 --> 00:06:25,214 their system's healthy, they'll work together to optimise 172 00:06:25,274 --> 00:06:27,750 the performance of both of those organs. And 173 00:06:27,750 --> 00:06:29,750 put simply, when we, when we breathe in 174 00:06:29,750 --> 00:06:32,230 our hearts accelerate, our heart rate goes up 175 00:06:32,230 --> 00:06:33,910 very slightly. And when we breathe out, our 176 00:06:33,910 --> 00:06:35,610 heart rate goes down very slightly. 177 00:06:36,069 --> 00:06:37,589 Now it'd been known for us, you know, 178 00:06:37,589 --> 00:06:39,029 it's a couple of 100 years since this 179 00:06:39,029 --> 00:06:41,350 phenomenon was first identified, but no one really 180 00:06:41,350 --> 00:06:43,414 examined as to why, why the body would 181 00:06:43,414 --> 00:06:44,555 bother to do this. 182 00:06:44,935 --> 00:06:47,175 More recently in the, you know, the recent 183 00:06:47,175 --> 00:06:50,214 decades, people have started to look at why 184 00:06:50,214 --> 00:06:52,294 this phenomenon occurs and have discovered that it 185 00:06:52,294 --> 00:06:54,294 actually brings quite a lot of benefits to 186 00:06:54,294 --> 00:06:55,035 both organs. 187 00:06:55,670 --> 00:06:57,670 So most obviously, you know, when we breathe 188 00:06:57,670 --> 00:06:59,509 in our lungs fill with oxygen, so our 189 00:06:59,509 --> 00:07:01,830 heart accelerates to to to pump as much 190 00:07:01,830 --> 00:07:03,589 blood as possible around the lungs to aid 191 00:07:03,589 --> 00:07:04,730 with the gas exchange. 192 00:07:05,350 --> 00:07:06,949 Also, you know, our lungs are in our 193 00:07:06,949 --> 00:07:08,550 chest. When we breathe in, we lower the 194 00:07:08,550 --> 00:07:10,069 pressure in our chest to allow the air 195 00:07:10,069 --> 00:07:11,865 into our lungs. Of course, our heart is 196 00:07:11,865 --> 00:07:13,144 in our chest as well. So now the 197 00:07:13,144 --> 00:07:15,785 heart's in beating the lower pressure environment, so 198 00:07:15,785 --> 00:07:17,464 it takes less energy for the, for the, 199 00:07:17,464 --> 00:07:18,605 for the heart to be. 200 00:07:19,064 --> 00:07:21,485 And now there's a growing body of evidence 201 00:07:21,544 --> 00:07:23,384 in the literature around, you know, the all 202 00:07:23,384 --> 00:07:26,024 these little benefits that RSA bring to their 203 00:07:26,024 --> 00:07:27,959 cardiovascular assist, cardio respiration. 204 00:07:29,139 --> 00:07:31,620 Now Julian was looking at well, he was 205 00:07:31,620 --> 00:07:33,220 looking at this phenomenon in itself and he 206 00:07:33,220 --> 00:07:34,180 was also looking at the 207 00:07:35,300 --> 00:07:37,379 we have this RSA when we're young and 208 00:07:37,379 --> 00:07:40,334 healthy and we it's enhanced in athletes. It's 209 00:07:40,334 --> 00:07:42,754 also present in all vertebrae animals. So even, 210 00:07:42,814 --> 00:07:46,014 you know, even fish display some RSA type 211 00:07:46,014 --> 00:07:46,514 mechanism. 212 00:07:47,855 --> 00:07:49,714 You know, so that when we get diseases 213 00:07:50,175 --> 00:07:52,894 like heart failure, you lose this, this RSA 214 00:07:52,894 --> 00:07:55,535 mechanism, the synchronisation between the heart and the 215 00:07:55,535 --> 00:07:57,779 lungs. So Julian's hypothesis was, 216 00:07:58,080 --> 00:08:00,080 if you could put RSA back into patients 217 00:08:00,080 --> 00:08:02,160 with RSA, would it restore the benefits of 218 00:08:02,160 --> 00:08:04,500 this mechanism and could that potentially be therapeutic? 219 00:08:05,199 --> 00:08:08,420 And the problem Julian has was that restoring 220 00:08:08,480 --> 00:08:10,154 this link is actually bit of a more 221 00:08:10,154 --> 00:08:12,074 of a complicated problem than it than it 222 00:08:12,074 --> 00:08:13,294 might first appear. 223 00:08:13,995 --> 00:08:15,294 But fortunately, he 224 00:08:16,154 --> 00:08:18,154 he kind of received an email from a 225 00:08:18,154 --> 00:08:20,254 physicist at at Bath University, 226 00:08:20,714 --> 00:08:24,449 who is looking at synchronization between nonlinear oscillating 227 00:08:24,509 --> 00:08:25,009 systems. 228 00:08:25,709 --> 00:08:26,209 Now 229 00:08:26,829 --> 00:08:29,089 where you get a lot of nonlinearity 230 00:08:29,949 --> 00:08:32,110 is in is in biology. Biology seems to 231 00:08:32,110 --> 00:08:32,929 love nonlinearity. 232 00:08:33,629 --> 00:08:35,735 So although it's not a natural place for 233 00:08:35,735 --> 00:08:37,335 maybe a physicist to be looking, they they 234 00:08:37,335 --> 00:08:39,495 tended to look towards biology and looked at 235 00:08:39,495 --> 00:08:42,134 things like your legs. Your legs to a 236 00:08:42,134 --> 00:08:44,934 physicist in in in in their field would 237 00:08:45,095 --> 00:08:46,795 is just, are just a couple of oscillators. 238 00:08:47,095 --> 00:08:49,679 Not linear oscillator, like, but it's keeping synch, 239 00:08:49,679 --> 00:08:51,360 allow us to walk and then to run. 240 00:08:51,360 --> 00:08:53,279 And how is the body able to to 241 00:08:53,279 --> 00:08:55,039 do that? How are we able to change 242 00:08:55,039 --> 00:08:56,799 our gait? How are we able to go 243 00:08:56,799 --> 00:08:58,480 from walking to running, trip on a stick, 244 00:08:58,480 --> 00:09:00,639 and actually not fall over? And I suppose 245 00:09:00,639 --> 00:09:02,820 it is is an interesting physics problem. 246 00:09:03,360 --> 00:09:05,305 So So the physicist in question was Alan 247 00:09:05,305 --> 00:09:07,865 Nogaret at Bath and he had, you know, 248 00:09:07,865 --> 00:09:09,625 been studying this for some time and had 249 00:09:09,625 --> 00:09:10,345 come up with, 250 00:09:11,065 --> 00:09:11,565 basically, 251 00:09:11,945 --> 00:09:13,644 a paper, an electronic representation 252 00:09:14,184 --> 00:09:16,904 of the MEC control systems that the body 253 00:09:16,904 --> 00:09:19,165 uses to control these nonlinear oscillators. 254 00:09:19,919 --> 00:09:21,840 And now he had these devices and he 255 00:09:21,840 --> 00:09:23,600 sent out a blanket email, I think, to 256 00:09:23,600 --> 00:09:25,919 Bath and Bristol University saying, I've got this 257 00:09:25,919 --> 00:09:28,000 technology. Does anybody have any ideas of what 258 00:09:28,000 --> 00:09:29,779 I should do with it? Now, fortunately, 259 00:09:30,159 --> 00:09:32,080 Julian saw the email, got in touch. And 260 00:09:32,080 --> 00:09:35,144 that's really how how, Cerrits came about. 261 00:09:35,924 --> 00:09:37,845 So we spent, you know, that, that was, 262 00:09:37,845 --> 00:09:40,565 well, I always started from 2016, but I 263 00:09:40,565 --> 00:09:42,164 think those guys have been working on it 264 00:09:42,164 --> 00:09:44,245 prior to, to that. But we've spent since 265 00:09:44,245 --> 00:09:47,899 about 2016, trying to develop Alan's technology into 266 00:09:47,899 --> 00:09:49,919 something which we could eventually use 267 00:09:50,459 --> 00:09:51,440 to re, 268 00:09:52,539 --> 00:09:54,860 reestablish this connection between the heart and lungs, 269 00:09:54,860 --> 00:09:55,839 restore RSA. 270 00:09:56,539 --> 00:09:59,519 And at the moment we're trying to identify 271 00:10:00,059 --> 00:10:00,559 whether, 272 00:10:01,325 --> 00:10:03,565 whether doing this has a therapeutic effect on 273 00:10:03,565 --> 00:10:04,785 patients with heart failure. 274 00:10:05,804 --> 00:10:07,404 Okay. I wanna bring in the ASH Lock 275 00:10:07,404 --> 00:10:09,085 here. You know, can you tell us a 276 00:10:09,085 --> 00:10:11,245 bit more about the technology and how that 277 00:10:11,245 --> 00:10:12,225 actually works? 278 00:10:12,924 --> 00:10:15,825 So as Stuart just touched on the respiratory 279 00:10:15,965 --> 00:10:16,785 sinus arrhythmia, 280 00:10:17,220 --> 00:10:18,360 how it is beneficial 281 00:10:19,620 --> 00:10:20,759 to the body, and 282 00:10:21,139 --> 00:10:21,639 you 283 00:10:22,100 --> 00:10:23,399 find that in healthy, 284 00:10:23,860 --> 00:10:24,360 humans. 285 00:10:24,740 --> 00:10:27,480 But in heart failure, that respiratory sinus arrhythmia 286 00:10:28,419 --> 00:10:29,240 doesn't exist. 287 00:10:31,705 --> 00:10:33,144 And another aspect of, 288 00:10:33,705 --> 00:10:36,924 respiratory sinus arrhythmia is that, heart rate variability, 289 00:10:37,144 --> 00:10:40,105 which is a good sign, again, present in 290 00:10:40,105 --> 00:10:41,004 healthy humans. 291 00:10:41,784 --> 00:10:44,105 So that heart rate variability is lost in 292 00:10:44,105 --> 00:10:45,480 heart failure in patients. 293 00:10:46,679 --> 00:10:48,759 So our technology, what it does is it 294 00:10:48,759 --> 00:10:49,259 mimics 295 00:10:49,799 --> 00:10:50,699 neural networks 296 00:10:51,000 --> 00:10:52,459 in the body, 297 00:10:52,839 --> 00:10:54,299 called central pattern generators, 298 00:10:54,839 --> 00:10:57,559 and these neural networks have specific tasks. They 299 00:10:57,559 --> 00:10:58,940 can generate rhythms 300 00:10:59,845 --> 00:11:01,384 without rhythmic inputs. 301 00:11:01,924 --> 00:11:04,424 And so, our electronics basically emulates 302 00:11:04,804 --> 00:11:06,345 those neural networks, 303 00:11:06,884 --> 00:11:08,424 and it generates rhythms, 304 00:11:08,965 --> 00:11:10,585 in coordination with restoration, 305 00:11:11,205 --> 00:11:11,705 and 306 00:11:12,245 --> 00:11:12,745 other, 307 00:11:13,365 --> 00:11:13,865 inputs. 308 00:11:15,000 --> 00:11:16,860 And it does it breath by breath 309 00:11:17,480 --> 00:11:19,580 Okay. To provide those subtle, 310 00:11:20,680 --> 00:11:22,540 respiratory sinus arrhythmia. 311 00:11:23,560 --> 00:11:25,639 And we we re so this way, we 312 00:11:25,639 --> 00:11:26,139 reinstate 313 00:11:26,855 --> 00:11:29,735 the healthy respiratory sinusoid pneumonia in the heart 314 00:11:29,735 --> 00:11:30,554 failure patients. 315 00:11:32,294 --> 00:11:32,794 And 316 00:11:33,414 --> 00:11:33,914 the, 317 00:11:35,334 --> 00:11:35,834 physiological 318 00:11:36,615 --> 00:11:37,115 improvements 319 00:11:37,495 --> 00:11:40,375 found was the increase in cardiac output by 320 00:11:40,375 --> 00:11:41,914 about 18 to 20% 321 00:11:43,009 --> 00:11:44,230 in the heart failure. 322 00:11:45,330 --> 00:11:48,149 Just to give a reference, 3% is considered 323 00:11:48,210 --> 00:11:48,710 significant. 324 00:11:49,170 --> 00:11:50,370 So, yeah, if you if you could put 325 00:11:50,370 --> 00:11:51,649 this in a pill form, it would be 326 00:11:51,649 --> 00:11:54,149 flying off the shelves and selling out. Yeah. 327 00:11:54,704 --> 00:11:56,964 So what does it actually look like in 328 00:11:57,105 --> 00:11:58,704 a patient? I mean, I guess you've you've 329 00:11:58,704 --> 00:12:00,565 done some animal studies so far? 330 00:12:01,584 --> 00:12:04,065 Yes. So the studies have been done in 331 00:12:04,065 --> 00:12:06,480 small animals and large animal models. 332 00:12:07,039 --> 00:12:09,519 And in both cases, we had similar amount 333 00:12:09,519 --> 00:12:10,019 of 334 00:12:10,559 --> 00:12:12,259 increase in the cardiac output. 335 00:12:12,639 --> 00:12:13,139 And, 336 00:12:13,759 --> 00:12:15,860 so in the the initial 337 00:12:16,320 --> 00:12:18,980 prototypes of the technology were just the electronic 338 00:12:19,039 --> 00:12:20,615 circuit on board and 339 00:12:20,995 --> 00:12:21,654 the trialed, 340 00:12:22,514 --> 00:12:24,595 in in the labs. But for the large 341 00:12:24,595 --> 00:12:25,495 animal trials, 342 00:12:26,434 --> 00:12:27,254 these were, 343 00:12:28,514 --> 00:12:30,934 again, in the static conditions in the lab. 344 00:12:31,394 --> 00:12:31,894 So 345 00:12:32,929 --> 00:12:34,769 what we're now trying to do is make 346 00:12:34,769 --> 00:12:35,269 them, 347 00:12:37,410 --> 00:12:38,549 we've got an external, 348 00:12:39,649 --> 00:12:42,850 pacemaker now. So and then the next stage 349 00:12:42,850 --> 00:12:43,910 is to make implantable, 350 00:12:44,769 --> 00:12:46,950 pacemaker out of this. And 351 00:12:47,954 --> 00:12:50,274 the electronics remains the same, but it shrinks, 352 00:12:50,274 --> 00:12:52,355 of course, a bit. Okay? Yeah. So you 353 00:12:52,434 --> 00:12:55,154 you've got potentially something you would wear on 354 00:12:55,154 --> 00:12:57,475 the outside, and then the next step is 355 00:12:57,475 --> 00:12:59,875 to make it so you can actually implant 356 00:12:59,875 --> 00:13:01,815 it. Implant it. Yes. I see. Okay. 357 00:13:02,980 --> 00:13:04,419 And you told me a little bit, Stuart, 358 00:13:04,419 --> 00:13:06,899 about how the company got started. How did 359 00:13:06,899 --> 00:13:08,579 you get involved in it? Because you're you're 360 00:13:08,579 --> 00:13:10,019 not you're not one of the 2 sort 361 00:13:10,019 --> 00:13:11,799 of the physicists and the physiologist, 362 00:13:12,339 --> 00:13:13,559 or clinicians, founders. 363 00:13:14,945 --> 00:13:16,465 I had I had kind of an interesting 364 00:13:16,465 --> 00:13:17,985 job. I mean, I'm a I'm a scientist 365 00:13:17,985 --> 00:13:18,644 by background, 366 00:13:19,345 --> 00:13:21,845 but at the time I was working for 367 00:13:22,065 --> 00:13:24,865 a company, it was essentially a a venture 368 00:13:24,865 --> 00:13:26,325 capital investment company. 369 00:13:26,840 --> 00:13:27,980 Now their USP 370 00:13:28,440 --> 00:13:30,620 at the time was that they had relationships 371 00:13:30,759 --> 00:13:31,740 with universities 372 00:13:32,440 --> 00:13:34,600 and they signed contracts with these universities, which 373 00:13:34,600 --> 00:13:36,200 would allow them to go in and meet 374 00:13:36,200 --> 00:13:36,860 the academics, 375 00:13:37,480 --> 00:13:39,480 look at the, research that they were doing, 376 00:13:39,480 --> 00:13:41,014 look at the IP that they were producing, 377 00:13:41,014 --> 00:13:42,954 and then they'd have kind of first dibs 378 00:13:43,334 --> 00:13:45,195 on potentially investing in that technology 379 00:13:45,575 --> 00:13:47,834 and, and, and, and spinning it out, essentially. 380 00:13:48,615 --> 00:13:50,534 So my role was to, I was the 381 00:13:50,534 --> 00:13:52,554 guy that went into the, into the university. 382 00:13:52,615 --> 00:13:54,690 So part of my patch within the, within 383 00:13:54,690 --> 00:13:55,990 the UK at the time 384 00:13:56,769 --> 00:13:58,690 to the Southwest and some of the London 385 00:13:58,690 --> 00:14:00,610 universities. So I'd go in all these universities, 386 00:14:00,610 --> 00:14:03,269 meet everyone and anything like the look of, 387 00:14:03,409 --> 00:14:05,970 I'd take it back to IP group at 388 00:14:05,970 --> 00:14:07,009 the time and, 389 00:14:07,649 --> 00:14:08,309 you know, 390 00:14:08,985 --> 00:14:10,745 pitched that we should, we should be backing 391 00:14:10,745 --> 00:14:11,404 this technology. 392 00:14:12,105 --> 00:14:13,865 So when I saw, when I saw this 393 00:14:13,865 --> 00:14:16,825 technology in 2016, I, I, it was, I 394 00:14:16,825 --> 00:14:18,264 mean, it was, I mean, I say this 395 00:14:18,264 --> 00:14:19,384 now, but I mean, it was the best 396 00:14:19,384 --> 00:14:21,384 thing I I'd seen with the universities. I 397 00:14:21,384 --> 00:14:22,200 mean, this is 398 00:14:23,720 --> 00:14:24,540 the the RSA, 399 00:14:25,240 --> 00:14:27,559 as a therapy for heart failure in itself 400 00:14:27,559 --> 00:14:29,720 is is massively exciting. You know, this is 401 00:14:29,960 --> 00:14:32,059 it is one of the big healthcare challenges. 402 00:14:32,759 --> 00:14:34,759 The expenditure on it on the heart failure 403 00:14:34,759 --> 00:14:36,919 is is, you know, it's only comparable by 404 00:14:37,080 --> 00:14:39,045 with cancer, to be honest, at the amount 405 00:14:39,045 --> 00:14:41,004 it costs that the health systems at the 406 00:14:41,004 --> 00:14:41,504 moment. 407 00:14:42,524 --> 00:14:42,845 And it's 408 00:14:44,285 --> 00:14:45,884 as with any disease, I suppose, you know, 409 00:14:45,884 --> 00:14:48,225 the world's getting older, the oil's getting fatter, 410 00:14:49,085 --> 00:14:51,160 and the problem's only getting worse. So that 411 00:14:51,160 --> 00:14:52,519 in itself is a is a is a 412 00:14:52,519 --> 00:14:55,799 big target. But the technology underneath is interesting. 413 00:14:55,799 --> 00:14:57,820 I mean, I'm not a physicist by background 414 00:14:57,960 --> 00:14:59,879 and I admit that, you know, I still 415 00:14:59,879 --> 00:15:01,820 struggle with with some of that 416 00:15:02,679 --> 00:15:04,919 with some of the theory behind how our 417 00:15:04,919 --> 00:15:05,419 devices 418 00:15:05,795 --> 00:15:08,115 our devices work, I could comprehend enough to 419 00:15:08,115 --> 00:15:10,274 see that this actually had the potential to 420 00:15:10,274 --> 00:15:10,774 be 421 00:15:11,154 --> 00:15:13,795 really a new approach to medical devices more 422 00:15:13,795 --> 00:15:15,795 more generally. I mean, I think as Ashok 423 00:15:15,795 --> 00:15:17,475 was saying and I was mentioning earlier, I 424 00:15:17,475 --> 00:15:19,335 mean, it it really does look at biology. 425 00:15:19,590 --> 00:15:22,250 How does, how is biology able to control 426 00:15:22,309 --> 00:15:24,950 the complex processes that go on within, within 427 00:15:24,950 --> 00:15:25,529 the system? 428 00:15:26,070 --> 00:15:27,529 Within the, within the body. 429 00:15:29,029 --> 00:15:31,110 And medical devices up to this point, we've 430 00:15:31,110 --> 00:15:33,764 kind of taken you know, electronic technology. So 431 00:15:33,764 --> 00:15:35,445 the same technology in your phones or your 432 00:15:35,445 --> 00:15:35,945 computers. 433 00:15:36,485 --> 00:15:38,325 And we kind of impose that on, on 434 00:15:38,325 --> 00:15:40,904 the body. And the 2 things don't communicate 435 00:15:40,965 --> 00:15:41,945 very well. One's 436 00:15:42,404 --> 00:15:44,665 a basic level. One's a digital system, 437 00:15:45,524 --> 00:15:47,144 communicating ones and zeros. 438 00:15:47,629 --> 00:15:50,429 One is a very complex analog system. So 439 00:15:50,429 --> 00:15:52,769 everything's, everything's 1, no everything 440 00:15:53,230 --> 00:15:53,970 in between. 441 00:15:54,350 --> 00:15:56,590 And the, and the body, that's how the 442 00:15:56,590 --> 00:15:58,830 body functions and trying to control that process 443 00:15:58,830 --> 00:16:01,789 of trying to correct biological processes using digital 444 00:16:01,789 --> 00:16:04,325 system in some ways, doesn't really make sense. 445 00:16:05,024 --> 00:16:07,105 So when you first saw what Alan and 446 00:16:07,105 --> 00:16:09,184 Julian were doing, you go, well, actually that 447 00:16:09,184 --> 00:16:11,745 makes sense. That's a sort of seamless connection 448 00:16:11,745 --> 00:16:13,684 between the human body. You can feed, 449 00:16:14,759 --> 00:16:17,080 biological signals into this technology and it can 450 00:16:17,080 --> 00:16:19,160 process it as part of its natural, natural 451 00:16:19,160 --> 00:16:21,320 functions. Whereas, you know, digital systems, you've got 452 00:16:21,320 --> 00:16:23,480 to take the, take the biological signal, you've 453 00:16:23,480 --> 00:16:25,080 got to filter it, you've got to process 454 00:16:25,080 --> 00:16:27,179 it to enable it to, 455 00:16:27,559 --> 00:16:29,605 to maybe to feed it into the, into 456 00:16:29,605 --> 00:16:31,605 the medical device itself. And what that means 457 00:16:31,605 --> 00:16:33,445 is you get very crude, you get very 458 00:16:33,445 --> 00:16:36,404 crude systems. I mean, most medical devices at 459 00:16:36,404 --> 00:16:38,665 the moment, a bit harsh, 460 00:16:40,325 --> 00:16:40,985 they just 461 00:16:41,860 --> 00:16:42,360 electrocute. 462 00:16:42,820 --> 00:16:44,500 They just electrocute in every of the body. 463 00:16:44,500 --> 00:16:46,580 I mean, the pacemaker today, you just get 464 00:16:46,580 --> 00:16:47,559 60 electrocute 465 00:16:47,940 --> 00:16:49,860 the heart 60 times a second, 60 times 466 00:16:49,860 --> 00:16:52,500 a minute rather to control rate. You know, 467 00:16:52,500 --> 00:16:55,379 Parkinson's disease brain implants, it's mostly just as 468 00:16:55,379 --> 00:16:55,879 simple 469 00:16:56,355 --> 00:16:58,115 stimulation in particular area of the brain. There's 470 00:16:58,115 --> 00:16:59,954 not a lot of complexity there. There's not 471 00:16:59,954 --> 00:17:00,934 a lot of feedback. 472 00:17:01,475 --> 00:17:03,394 So I thought that, you know, this first 473 00:17:03,394 --> 00:17:05,954 application in heart failure is incredibly exciting, but 474 00:17:05,954 --> 00:17:07,394 there's more to it there. I think that, 475 00:17:07,394 --> 00:17:09,015 you know, further down the line, 476 00:17:09,409 --> 00:17:12,470 certainly Ceryx's more biomimetic approach, create 477 00:17:12,929 --> 00:17:15,009 mimic the systems that they're trying to to 478 00:17:15,009 --> 00:17:17,269 control, makes makes a lot of sense. 479 00:17:18,130 --> 00:17:19,970 And that's kind of the premise that that 480 00:17:19,970 --> 00:17:21,984 it came from. So I, yeah, getting back 481 00:17:21,984 --> 00:17:23,825 to your question, I mean, I, I, you 482 00:17:23,825 --> 00:17:25,664 know, I found the technology in 2016. I 483 00:17:25,664 --> 00:17:27,424 continued to work for IP Group. We, we 484 00:17:27,424 --> 00:17:29,825 did some early investments into, into CEREC after 485 00:17:29,825 --> 00:17:31,825 we spun out of, of Bath and Bristol 486 00:17:31,825 --> 00:17:32,325 Universities. 487 00:17:33,345 --> 00:17:34,325 And then in 2019, 488 00:17:36,250 --> 00:17:38,250 say IP group, you decided to take a 489 00:17:38,250 --> 00:17:40,730 different route. It's got moved away from the 490 00:17:40,730 --> 00:17:42,910 university model. They didn't want to, they couldn't, 491 00:17:43,289 --> 00:17:45,609 can we work with the universities in the 492 00:17:45,609 --> 00:17:47,289 same way they had before? So when they 493 00:17:47,289 --> 00:17:49,275 went off in that direction, not I stayed 494 00:17:49,275 --> 00:17:51,275 behind, and I left IP group and and 495 00:17:51,275 --> 00:17:52,975 joined CEREC full time. 496 00:17:54,315 --> 00:17:55,615 Yeah. That's how I came about. 497 00:17:56,555 --> 00:17:58,475 And, Ashlag, you you are a physicist by 498 00:17:58,475 --> 00:18:00,475 background. How did you get interested in this 499 00:18:00,475 --> 00:18:03,355 this technology and and get involved in helping 500 00:18:03,355 --> 00:18:04,680 to make it it work? So 501 00:18:05,299 --> 00:18:08,599 I was a doctoral student of professor Nagar 502 00:18:08,900 --> 00:18:11,380 in University of Bath. And, when I was 503 00:18:11,380 --> 00:18:13,240 finishing my PhD, there was 504 00:18:13,539 --> 00:18:14,920 a this project had, 505 00:18:15,380 --> 00:18:17,605 was going on. And so there 506 00:18:18,585 --> 00:18:19,085 was 507 00:18:20,065 --> 00:18:21,365 a position for postdoctoral 508 00:18:21,664 --> 00:18:23,184 researcher in in that group, 509 00:18:24,065 --> 00:18:25,125 on that project. So 510 00:18:25,664 --> 00:18:27,505 I found it fascinating. So I joined the 511 00:18:27,505 --> 00:18:29,525 project, and I spent few years 512 00:18:30,545 --> 00:18:31,845 developing actually the 513 00:18:32,160 --> 00:18:32,820 hardware and 514 00:18:33,279 --> 00:18:36,160 the technology and working between the labs labs 515 00:18:36,160 --> 00:18:38,259 of professor Norbert and professor Julian. 516 00:18:39,680 --> 00:18:41,680 And what was the most difficult part of 517 00:18:41,680 --> 00:18:43,700 that task instead of developing the technology? 518 00:18:46,894 --> 00:18:49,295 As there are 2 different disciplines involved, there 519 00:18:49,295 --> 00:18:52,595 are challenges from both disciplines. 1st was, 520 00:18:53,055 --> 00:18:54,515 actually making the 521 00:18:54,975 --> 00:18:58,174 hardware designs and studying the dynamics that will 522 00:18:58,174 --> 00:18:58,674 be, 523 00:18:59,559 --> 00:19:01,320 dynamics of the network that will be more 524 00:19:01,320 --> 00:19:03,980 useful in coordinating respiration and heartbeat. 525 00:19:05,720 --> 00:19:06,460 And then 526 00:19:07,080 --> 00:19:11,240 bring bringing it, for physiological application and actually 527 00:19:11,240 --> 00:19:11,740 saying, 528 00:19:12,359 --> 00:19:13,820 for example, tuning the parameters 529 00:19:15,085 --> 00:19:17,184 and the range and the rate of adaptation, 530 00:19:17,404 --> 00:19:18,144 those kind 531 00:19:18,764 --> 00:19:20,924 of technical details that you have to work 532 00:19:20,924 --> 00:19:23,085 out from the scratch in in a different 533 00:19:23,085 --> 00:19:25,904 lab, which is physiology lab. And I wasn't 534 00:19:28,650 --> 00:19:30,809 a a physiologist from background. So it was 535 00:19:30,809 --> 00:19:31,789 a learning process 536 00:19:32,250 --> 00:19:33,630 on 2 different levels, 537 00:19:34,089 --> 00:19:35,789 but, eventually, we got there. 538 00:19:36,410 --> 00:19:37,849 And, Stuart, what will you say in terms 539 00:19:37,849 --> 00:19:39,529 of what was the most difficult challenge you 540 00:19:39,529 --> 00:19:41,690 had from the business side of things to 541 00:19:41,690 --> 00:19:43,205 get this this company to where it where 542 00:19:43,205 --> 00:19:43,945 it is now? 543 00:19:46,404 --> 00:19:47,605 I'm not sure. I put I should put 544 00:19:47,605 --> 00:19:49,045 this out in a in a podcast, but, 545 00:19:49,045 --> 00:19:50,884 I mean, the the biggest problem for any 546 00:19:50,884 --> 00:19:52,664 any start up is always funding. 547 00:19:53,525 --> 00:19:54,105 It's so 548 00:19:55,380 --> 00:19:58,420 so much effort is put into just, just 549 00:19:58,420 --> 00:19:58,920 feeding 550 00:19:59,539 --> 00:20:00,359 cash into, 551 00:20:01,059 --> 00:20:03,480 into, into the business. I mean, we're, we 552 00:20:04,980 --> 00:20:06,440 Ceryx has been quite, 553 00:20:06,894 --> 00:20:08,414 efficient, I think in the way that he's 554 00:20:08,414 --> 00:20:09,855 done things. You know, we've got a very, 555 00:20:09,855 --> 00:20:11,555 we've got a small but highly 556 00:20:12,255 --> 00:20:12,755 experienced 557 00:20:13,134 --> 00:20:13,634 team. 558 00:20:14,255 --> 00:20:15,775 We've also been quite smart in how we've 559 00:20:15,775 --> 00:20:18,335 been using sort of external subcontractors just to 560 00:20:18,335 --> 00:20:21,130 kind of keep sort of overheads overheads down 561 00:20:21,130 --> 00:20:23,950 and proceed as, as efficiently as possible. 562 00:20:24,330 --> 00:20:26,330 So our cash requirements have been kept to 563 00:20:26,330 --> 00:20:28,090 a minimum, but it's but it's just been 564 00:20:28,090 --> 00:20:30,250 so difficult to to raise the to raise 565 00:20:30,250 --> 00:20:32,085 the money. I mean, one of the things 566 00:20:32,085 --> 00:20:33,464 that you want to do 567 00:20:34,164 --> 00:20:34,825 with any 568 00:20:35,365 --> 00:20:38,085 development program is is to keep momentum. You've 569 00:20:38,085 --> 00:20:39,545 got to keep pace up. 570 00:20:42,005 --> 00:20:42,744 And sometimes 571 00:20:43,605 --> 00:20:44,585 doing that alongside 572 00:20:45,390 --> 00:20:46,369 funding timescales 573 00:20:46,670 --> 00:20:48,509 is just really, really hard. I mean, on 574 00:20:48,509 --> 00:20:50,130 the one hand you have, you have grants. 575 00:20:50,670 --> 00:20:52,289 Sometimes they have like ludicrous 576 00:20:53,710 --> 00:20:55,869 process which can take, you know, 12 months 577 00:20:55,869 --> 00:20:56,529 or so. 578 00:20:57,549 --> 00:20:59,394 And, you know, that just doesn't fit with 579 00:20:59,394 --> 00:21:00,295 a fast moving, 580 00:21:00,994 --> 00:21:03,715 startup. You know, we've, we've 12 months' time, 581 00:21:03,715 --> 00:21:04,775 we'll have we're 582 00:21:05,715 --> 00:21:07,075 in a completely different place than where we 583 00:21:07,075 --> 00:21:08,994 were 12 months ago. Trying to plan that 584 00:21:08,994 --> 00:21:10,215 ahead is quite difficult. 585 00:21:11,130 --> 00:21:11,630 Investment 586 00:21:11,930 --> 00:21:13,130 in the account I mean, I think that 587 00:21:13,130 --> 00:21:15,210 we, you know, we were unlucky, I think, 588 00:21:15,210 --> 00:21:17,049 in that, you know, when we really started 589 00:21:17,049 --> 00:21:19,369 to move around sort of 2018, 2019, we 590 00:21:19,369 --> 00:21:21,369 started getting into the sort of pandemic type 591 00:21:21,369 --> 00:21:21,869 period 592 00:21:22,170 --> 00:21:24,589 and then everything became a lot more difficult. 593 00:21:25,204 --> 00:21:27,285 Funding became a lot more difficult. I mean, 594 00:21:27,285 --> 00:21:28,025 even now, 595 00:21:28,484 --> 00:21:30,164 you know, investors tell me that they're having 596 00:21:30,164 --> 00:21:32,404 difficulty raising money. So us raising money from 597 00:21:32,404 --> 00:21:34,265 then, everything was quite difficult. 598 00:21:34,805 --> 00:21:35,865 I mean, we were 599 00:21:36,244 --> 00:21:38,644 we did well. We wrote we closed a 600 00:21:38,644 --> 00:21:39,704 pretty large round, 601 00:21:40,200 --> 00:21:42,279 nearly nearly 3 years ago now where we 602 00:21:42,279 --> 00:21:43,419 we wrote oversubscribed. 603 00:21:46,039 --> 00:21:47,559 But even then, it was, you know, it 604 00:21:47,559 --> 00:21:49,400 was it was a 14 month process, I 605 00:21:49,400 --> 00:21:51,099 think, to to to. 606 00:21:53,494 --> 00:21:55,734 I do think as well that, you know, 607 00:21:55,734 --> 00:21:57,914 working in the space where, that we are, 608 00:21:58,134 --> 00:22:00,214 I mean, investors have a, to be fair, 609 00:22:00,214 --> 00:22:01,494 I mean, I've been one, so I know 610 00:22:01,494 --> 00:22:02,934 that investors have a hard time with it. 611 00:22:02,934 --> 00:22:04,714 They, they look at a lot of technologies, 612 00:22:04,855 --> 00:22:06,535 a lot of companies, there's a lot of 613 00:22:06,535 --> 00:22:08,990 information that they take in. And very often, 614 00:22:08,990 --> 00:22:10,669 you know, they, they they're dealing with the 615 00:22:10,669 --> 00:22:12,529 business side and they come from a financial 616 00:22:12,669 --> 00:22:13,169 background. 617 00:22:14,029 --> 00:22:15,309 And I'll sit them down in front of 618 00:22:15,309 --> 00:22:17,230 a physicist and just go, come on, why 619 00:22:17,230 --> 00:22:19,309 don't you appreciate how brilliant this is? And 620 00:22:19,309 --> 00:22:20,829 it's really hard for them to do that. 621 00:22:20,829 --> 00:22:22,269 But I mean, it is particularly hard, I 622 00:22:22,269 --> 00:22:24,345 think for CEREX because we, as Ashok said, 623 00:22:24,345 --> 00:22:27,065 we encompass so many different aspects. We've got, 624 00:22:27,065 --> 00:22:28,845 you know, cardiovascular physiology, 625 00:22:29,865 --> 00:22:32,585 we've got electronics, we've got physics, we've got 626 00:22:32,585 --> 00:22:33,085 mathematics. 627 00:22:34,025 --> 00:22:34,525 And 628 00:22:35,144 --> 00:22:36,505 part of the beauty of what we do 629 00:22:36,505 --> 00:22:37,404 is in the complexity 630 00:22:37,944 --> 00:22:38,684 of the technology. 631 00:22:39,049 --> 00:22:40,890 It's why, you know, it's why we've been 632 00:22:40,890 --> 00:22:41,710 able to achieve 633 00:22:42,009 --> 00:22:44,009 what we have with RSA with other other 634 00:22:44,009 --> 00:22:45,769 people may not have been able to because 635 00:22:45,769 --> 00:22:47,929 it is, it is quite complex and that's 636 00:22:47,929 --> 00:22:50,730 what's great about it. But trying to communicate 637 00:22:50,730 --> 00:22:52,409 that message in a way that people just 638 00:22:52,409 --> 00:22:52,909 don't 639 00:22:53,325 --> 00:22:55,005 investors in particular, don't just turn off and 640 00:22:55,005 --> 00:22:57,565 just go, no, actually this one's too hard. 641 00:22:57,565 --> 00:22:58,765 I'll look at the next, I'll look at 642 00:22:58,765 --> 00:23:00,924 the next technology. At least I slightly understand 643 00:23:00,924 --> 00:23:01,424 it 644 00:23:01,724 --> 00:23:04,144 is, is a difficult problem. I mean, and 645 00:23:04,444 --> 00:23:05,265 yeah, so 646 00:23:06,500 --> 00:23:08,100 that's my long winded answer to say, yeah, 647 00:23:08,100 --> 00:23:10,420 just, just, just cash. But I think any, 648 00:23:10,420 --> 00:23:12,259 any startup probably in the world will say 649 00:23:12,259 --> 00:23:15,299 exactly the same thing. Just, just sourcing funding 650 00:23:15,299 --> 00:23:17,539 for, for even, it doesn't matter how brilliant 651 00:23:17,539 --> 00:23:18,494 your idea is. 652 00:23:19,535 --> 00:23:21,535 Getting getting cash to fund it is always 653 00:23:21,535 --> 00:23:22,194 the challenge. 654 00:23:23,375 --> 00:23:25,394 And I understand you're you're about to enter, 655 00:23:25,694 --> 00:23:28,015 a new and and differently challenging phase for 656 00:23:28,015 --> 00:23:29,775 the company. You're you're starting your first in 657 00:23:29,775 --> 00:23:32,015 human trials. What sort of challenges does that 658 00:23:32,015 --> 00:23:34,380 bring? Maybe, Ashlag, you wanna go first? 659 00:23:35,819 --> 00:23:36,319 So 660 00:23:36,619 --> 00:23:38,079 some of that are the regulatory 661 00:23:38,940 --> 00:23:41,359 approval we need. It takes a very long 662 00:23:41,579 --> 00:23:42,960 time and longer 663 00:23:43,259 --> 00:23:44,240 document preparation. 664 00:23:45,099 --> 00:23:45,599 And 665 00:23:45,980 --> 00:23:47,819 even before that is the preparation for the 666 00:23:47,819 --> 00:23:48,319 technology 667 00:23:49,105 --> 00:23:50,325 that will be evaluated 668 00:23:50,625 --> 00:23:51,125 for 669 00:23:51,585 --> 00:23:52,804 regulatory approval. 670 00:23:53,265 --> 00:23:54,005 So we 671 00:23:54,944 --> 00:23:56,484 again, then we have to coordinate, 672 00:23:56,944 --> 00:23:59,125 as Sushu said, electronics, physics, 673 00:23:59,825 --> 00:24:01,444 and mathematics, and everything. 674 00:24:01,970 --> 00:24:03,589 And we have to commit to a design 675 00:24:03,650 --> 00:24:04,630 of the technology. 676 00:24:05,089 --> 00:24:07,329 There can be other versions, improved versions later 677 00:24:07,329 --> 00:24:09,170 on, but we have to then commit to 678 00:24:09,170 --> 00:24:10,869 a certain design before 679 00:24:11,170 --> 00:24:13,269 we file for the regulatory approval. So 680 00:24:13,904 --> 00:24:16,065 that was a challenging part from my side, 681 00:24:16,065 --> 00:24:18,085 and I think Stew can add further. 682 00:24:19,984 --> 00:24:21,744 So from from the clinical side, I mean, 683 00:24:21,744 --> 00:24:23,265 we as I said, we've we've been pretty 684 00:24:23,265 --> 00:24:25,184 efficient, I think, in the development. We went 685 00:24:25,184 --> 00:24:26,865 from a we went pretty much from a 686 00:24:26,865 --> 00:24:28,085 standing start to 687 00:24:28,920 --> 00:24:29,420 a, 688 00:24:30,200 --> 00:24:32,600 an MHRA approved class c medical device in 689 00:24:32,600 --> 00:24:35,180 about 2 years, which is pretty good going. 690 00:24:35,720 --> 00:24:37,160 And then we thought, right, we just gotta 691 00:24:37,160 --> 00:24:38,920 just gotta put it on a patient now. 692 00:24:38,920 --> 00:24:39,980 It's all been approved. 693 00:24:41,000 --> 00:24:44,664 And, it actually is been incredibly incredibly challenging. 694 00:24:44,664 --> 00:24:46,664 I mean, obviously, you know, the patients we're 695 00:24:46,664 --> 00:24:48,784 dealing with are really quite really quite sick. 696 00:24:48,784 --> 00:24:50,684 I mean, heart failure is a serious condition. 697 00:24:50,984 --> 00:24:53,224 For this clinical study, we're taking patients who 698 00:24:53,224 --> 00:24:55,304 have got heart failure, who are going in 699 00:24:55,304 --> 00:24:57,085 for a coronary artery bypass 700 00:24:57,390 --> 00:24:59,230 graft operation. Now why we were interested in 701 00:24:59,230 --> 00:25:00,609 these patients is because 702 00:25:01,470 --> 00:25:03,950 these patients as part of standard clinical care 703 00:25:03,950 --> 00:25:06,670 are fitted with an external pacing device. So 704 00:25:06,670 --> 00:25:07,710 when they go in, they go in for 705 00:25:07,710 --> 00:25:09,630 the procedure and just when the surgeons finish, 706 00:25:09,630 --> 00:25:11,150 you'll put a couple of pacing wires, 1 707 00:25:11,150 --> 00:25:13,009 in the atrium, 1 in the ventricle. 708 00:25:13,365 --> 00:25:15,125 And these wires then just come out through 709 00:25:15,125 --> 00:25:16,505 a through a hole in the chest 710 00:25:17,125 --> 00:25:18,724 and a patient is stitched up. And when 711 00:25:18,724 --> 00:25:20,805 they get taken down to the ICU, they'll 712 00:25:20,805 --> 00:25:23,444 they'll have a an external pacing box. And 713 00:25:23,444 --> 00:25:25,950 that just controls their heart rhythm as a 714 00:25:26,109 --> 00:25:28,029 surgeon who recovered from the anesthesia. They can 715 00:25:28,029 --> 00:25:29,569 be at sort of high risk for arrhythmias 716 00:25:29,630 --> 00:25:31,569 there, so that prevents that from happening. 717 00:25:31,869 --> 00:25:33,309 But generally what will happen the next day 718 00:25:33,309 --> 00:25:35,649 is the cardiologist's surgeon will come round. 719 00:25:35,950 --> 00:25:37,869 They'll turn down the pacing on this device. 720 00:25:37,869 --> 00:25:39,710 And if that patient's got a normal sinus 721 00:25:39,710 --> 00:25:40,210 rhythm, 722 00:25:40,589 --> 00:25:42,965 they'll turn that pacing box off. Generally, the 723 00:25:42,965 --> 00:25:44,565 wires stay in for a couple more days 724 00:25:44,565 --> 00:25:46,805 just in case the pacing's needed. But eventually, 725 00:25:46,805 --> 00:25:48,244 the nurses will just come around and they'll 726 00:25:48,244 --> 00:25:49,924 just basically just tug on the wires and 727 00:25:49,924 --> 00:25:51,445 it they come off the outside of the 728 00:25:51,445 --> 00:25:52,884 heart and they'll stitch them up and away 729 00:25:52,884 --> 00:25:55,125 they go. So we were interested there because 730 00:25:55,125 --> 00:25:57,065 that's an opportunity for us to 731 00:25:57,759 --> 00:26:00,160 where pacing is huge without having to implant 732 00:26:00,160 --> 00:26:02,240 the device into the patients. What we've done 733 00:26:02,240 --> 00:26:04,099 for this first study is taken our technology 734 00:26:04,720 --> 00:26:07,279 and integrated it with an existing external pacing 735 00:26:07,279 --> 00:26:09,119 device. So they can be fitted with that 736 00:26:09,119 --> 00:26:10,740 pacemaker when they come out surgery 737 00:26:11,044 --> 00:26:12,724 and just give a normal pacing. And then 738 00:26:12,724 --> 00:26:14,265 when they're ready to come off that pacemaker, 739 00:26:14,325 --> 00:26:15,765 we switch it over and then it gives 740 00:26:15,765 --> 00:26:16,244 them their 741 00:26:16,964 --> 00:26:19,525 delivers RSA pacing. And we'll just leave that 742 00:26:19,525 --> 00:26:21,605 on for the duration that patient remains in 743 00:26:21,605 --> 00:26:23,605 hospital, which is, you know, typically about sort 744 00:26:23,605 --> 00:26:25,580 of 5 days or so. So I'll give 745 00:26:25,580 --> 00:26:28,140 this first indication of the kind of safety 746 00:26:28,140 --> 00:26:30,460 and feasibility of RSA patient in patients. But 747 00:26:30,460 --> 00:26:32,539 maybe also we'll get some early indications of 748 00:26:32,539 --> 00:26:33,039 efficacy. 749 00:26:33,340 --> 00:26:35,599 You know, we're that's what we're hoping. But 750 00:26:35,900 --> 00:26:37,424 lot there's a lot going on there. I 751 00:26:37,505 --> 00:26:38,945 mean, these patients, as I say, these patients 752 00:26:38,945 --> 00:26:40,505 got heart failure. They were going in for 753 00:26:40,505 --> 00:26:42,705 a coronary artery bypass. There are risks to 754 00:26:42,705 --> 00:26:44,404 that, to that, to that operation. 755 00:26:45,184 --> 00:26:47,424 So, you know, getting that ulcer approval as 756 00:26:47,424 --> 00:26:49,505 Assoc Sheikin said is quite challenging, but then 757 00:26:49,505 --> 00:26:51,345 also getting the patients into the study are 758 00:26:51,345 --> 00:26:52,085 quite difficult. 759 00:26:52,990 --> 00:26:55,230 One problem that we didn't expect that we've 760 00:26:55,230 --> 00:26:57,069 found in these early weeks of the study 761 00:26:57,069 --> 00:26:57,730 is that 762 00:26:58,509 --> 00:26:59,009 often 763 00:26:59,630 --> 00:27:01,950 these patients are being admitted to hospital several 764 00:27:01,950 --> 00:27:03,650 weeks before they have their surgery. 765 00:27:04,029 --> 00:27:06,125 Now sometimes they've kind of got themselves in 766 00:27:06,125 --> 00:27:07,884 a bad way because maybe they haven't been 767 00:27:07,884 --> 00:27:10,044 able to manage their diseases as well as 768 00:27:10,044 --> 00:27:11,585 they, as well as they might. 769 00:27:12,444 --> 00:27:14,924 One of our first candidates had quite severe 770 00:27:14,924 --> 00:27:15,424 diabetes 771 00:27:15,804 --> 00:27:17,644 and hadn't been very good at managing that 772 00:27:17,644 --> 00:27:19,325 diabetes. So of course, when they came into 773 00:27:19,325 --> 00:27:19,984 the hospital, 774 00:27:20,349 --> 00:27:22,190 the nurses were all over them. They they 775 00:27:22,190 --> 00:27:24,829 optimized their their their therapy. They monitored their 776 00:27:24,829 --> 00:27:26,990 diabetes properly. And what we found was that 777 00:27:26,990 --> 00:27:28,429 this patient was quite unwell when they came 778 00:27:28,429 --> 00:27:30,029 into hospital. By the time they came out 779 00:27:30,029 --> 00:27:31,789 and had the surgery, they were actually too 780 00:27:31,789 --> 00:27:34,095 healthy to be included in our study. So 781 00:27:34,095 --> 00:27:36,115 it's great for them, but, yeah. 782 00:27:36,494 --> 00:27:38,414 And actually that's happened quite a few times 783 00:27:38,414 --> 00:27:40,375 now. So it was this problem of the 784 00:27:40,575 --> 00:27:42,095 it was basically the hospital was doing the 785 00:27:42,095 --> 00:27:43,934 job too well. They were we're, like, making 786 00:27:43,934 --> 00:27:45,075 these patients well 787 00:27:45,375 --> 00:27:46,034 for us. 788 00:27:46,494 --> 00:27:48,434 And then, you know, occasionally you get complications 789 00:27:48,575 --> 00:27:50,069 from the surgery, you know, 790 00:27:50,630 --> 00:27:52,069 one guy unfortunately got a bit of a 791 00:27:52,069 --> 00:27:54,009 bleed after the surgery, had to be readmitted. 792 00:27:54,069 --> 00:27:55,750 I mean, he was fine after the surgeons 793 00:27:55,750 --> 00:27:58,149 had another go, but, but, you know, it 794 00:27:58,149 --> 00:28:00,169 excluded him from the study. So it's 795 00:28:00,710 --> 00:28:03,369 it's it's a it's an interesting but frustrating 796 00:28:03,509 --> 00:28:05,744 period. You know, as scientists, we used to 797 00:28:05,744 --> 00:28:07,264 set up our experiment and then we do 798 00:28:07,264 --> 00:28:09,825 the experiment. Here we've got, you know, health 799 00:28:09,825 --> 00:28:11,044 systems and patients 800 00:28:11,585 --> 00:28:13,424 and medicine getting in the way and it's, 801 00:28:13,424 --> 00:28:14,404 it's, it's, 802 00:28:14,944 --> 00:28:15,845 yeah. It's 803 00:28:16,599 --> 00:28:17,799 making me call my hair out at the 804 00:28:17,799 --> 00:28:19,179 moment, but we're getting there. 805 00:28:19,720 --> 00:28:21,799 How long has this clinical trial's meant to 806 00:28:21,799 --> 00:28:23,500 last, and then what happens after that? 807 00:28:24,039 --> 00:28:25,720 So we're gonna we're gonna look for a 808 00:28:25,720 --> 00:28:27,159 sort of a we're looking sort of 12, 809 00:28:27,159 --> 00:28:30,359 18 month recruitment period. We've we've actually gone 810 00:28:30,359 --> 00:28:32,535 quite large with, with this study. 811 00:28:33,474 --> 00:28:34,914 So normally as a sort of first in 812 00:28:34,914 --> 00:28:36,994 human evaluation, we go for about sort of 813 00:28:36,994 --> 00:28:37,815 15 patients. 814 00:28:38,355 --> 00:28:39,955 Based on the data we saw from the 815 00:28:39,955 --> 00:28:42,195 preclinical work, we've kind of pushed it to 816 00:28:42,195 --> 00:28:43,095 30 patients 817 00:28:43,474 --> 00:28:44,615 because we sort of 818 00:28:45,079 --> 00:28:47,240 based on the human animal data, maybe if 819 00:28:47,240 --> 00:28:49,160 we recruited that many patients, we might start 820 00:28:49,160 --> 00:28:50,619 to see some, some significant 821 00:28:50,920 --> 00:28:53,339 indications of efficacy in these, in these patients. 822 00:28:54,440 --> 00:28:56,440 Now there's 2 ways that this could go 823 00:28:56,440 --> 00:28:57,825 after, after this study. 824 00:28:58,384 --> 00:28:59,825 We've, we've sort of, you know, this is 825 00:28:59,825 --> 00:29:01,184 a first in humans, so we just want 826 00:29:01,184 --> 00:29:03,264 to show that RSA pacing is safe and 827 00:29:03,264 --> 00:29:05,105 that provides us as a gateway to then 828 00:29:05,105 --> 00:29:07,444 take the next step, miniaturize our technology 829 00:29:07,744 --> 00:29:10,244 and implant it with patients with more straightforward 830 00:29:10,384 --> 00:29:11,125 heart failure, 831 00:29:11,440 --> 00:29:13,039 and then pace them over a longer period 832 00:29:13,039 --> 00:29:14,640 of time. That gives us a much that 833 00:29:14,640 --> 00:29:17,359 gives us, you know, months of therapy rather 834 00:29:17,359 --> 00:29:19,039 than the days of therapy that we're getting 835 00:29:19,039 --> 00:29:19,779 this study. 836 00:29:20,080 --> 00:29:21,680 And then we should get an indication of 837 00:29:21,680 --> 00:29:23,940 the full effect of of RSA therapy. 838 00:29:25,005 --> 00:29:25,505 However, 839 00:29:26,125 --> 00:29:28,525 there is the possibility. I mean, all patients 840 00:29:28,525 --> 00:29:30,845 that go in for, for, for heart surgery 841 00:29:30,845 --> 00:29:33,244 generally have depressed cardiac function when they come 842 00:29:33,244 --> 00:29:34,845 out. The heart's been, you know, your chest 843 00:29:34,845 --> 00:29:36,365 has been open. The heart's been messed around 844 00:29:36,365 --> 00:29:38,240 with its, you know, it doesn't like. It. 845 00:29:38,299 --> 00:29:39,980 So your cardiac output probably is going to 846 00:29:39,980 --> 00:29:41,660 be down for a few days to, you 847 00:29:41,660 --> 00:29:43,579 know, few days to a few weeks post 848 00:29:43,579 --> 00:29:44,079 surgery. 849 00:29:44,539 --> 00:29:46,859 Now with most patients, it slowly recovers and 850 00:29:46,859 --> 00:29:48,380 the patients will feel better as that, as 851 00:29:48,380 --> 00:29:49,359 that comes around. 852 00:29:49,835 --> 00:29:52,075 But there are patients about 15% of patients 853 00:29:52,075 --> 00:29:54,234 where that, that recovery never really happens. And 854 00:29:54,234 --> 00:29:56,595 there'll have to be additional interventions to try 855 00:29:56,595 --> 00:29:57,035 and, 856 00:29:57,515 --> 00:30:00,095 make up for this, this deficit in cardiac 857 00:30:00,154 --> 00:30:00,654 function. 858 00:30:01,035 --> 00:30:03,035 So if we had a device whereby, you 859 00:30:03,035 --> 00:30:05,230 know, these patients are getting pacemakers anyway, if 860 00:30:05,230 --> 00:30:07,230 you fitted them with an RSA pacemaker, we'd 861 00:30:07,230 --> 00:30:09,169 not only protect them against those arrhythmias, 862 00:30:09,630 --> 00:30:11,970 but would also improve their cardiac function. 863 00:30:12,349 --> 00:30:14,509 Would that mean that those 15% of patients 864 00:30:14,509 --> 00:30:16,849 never, you know, get that prolonged depressed, 865 00:30:17,515 --> 00:30:21,035 cardiac function. And also all patients, the quicker 866 00:30:21,035 --> 00:30:23,115 you can improve their cardiac function, the quicker 867 00:30:23,115 --> 00:30:24,394 they're going to recover and the better they're 868 00:30:24,394 --> 00:30:26,075 going to feel. So maybe it would be 869 00:30:26,075 --> 00:30:28,795 a solution for all patients having, having reduced 870 00:30:28,795 --> 00:30:29,295 cardiac, 871 00:30:29,674 --> 00:30:30,974 having cardiac surgery. 872 00:30:31,640 --> 00:30:33,240 So there is there is kind of 2 873 00:30:33,240 --> 00:30:35,400 possibilities for this study. 1, you know, it's 874 00:30:35,400 --> 00:30:37,240 just the, you know, the first stepping stone 875 00:30:37,240 --> 00:30:39,080 in our development for long term therapy for 876 00:30:39,080 --> 00:30:41,320 heart failure, but also potentially it's a new 877 00:30:41,320 --> 00:30:43,559 therapy for all patients going in for cardiac 878 00:30:43,559 --> 00:30:44,059 surgery. 879 00:30:44,680 --> 00:30:45,799 And we'll just have to, 880 00:30:46,444 --> 00:30:50,444 just wait and see. Now I understand that 881 00:30:50,444 --> 00:30:52,045 that, you know, this is you're looking at 882 00:30:52,045 --> 00:30:52,785 at cardiac 883 00:30:53,164 --> 00:30:55,244 applications of this sort of, 884 00:30:55,964 --> 00:30:56,545 you know, 885 00:30:57,085 --> 00:30:59,549 your the core technology in the first place. 886 00:30:59,950 --> 00:31:02,830 Are there any other areas where this, you 887 00:31:02,830 --> 00:31:04,350 know, sort of I guess you could see 888 00:31:04,350 --> 00:31:07,309 appreciation of of the nonlinear nature of the 889 00:31:07,309 --> 00:31:11,390 body signals could and and coupling an external 890 00:31:11,390 --> 00:31:12,130 or implanted 891 00:31:12,535 --> 00:31:15,174 electrical device to that. Are there other applications 892 00:31:15,174 --> 00:31:16,234 where that could also 893 00:31:16,535 --> 00:31:17,835 be effective clinically? 894 00:31:19,414 --> 00:31:21,095 Yeah. So, I mean, if if you know, 895 00:31:21,095 --> 00:31:22,855 just to throw a few examples out there. 896 00:31:22,855 --> 00:31:24,630 I mean, you know, you said, you know, 897 00:31:24,630 --> 00:31:25,849 the body's full of nonlinearity, 898 00:31:26,230 --> 00:31:28,230 and we think our technology will be ideally 899 00:31:28,230 --> 00:31:28,730 suited 900 00:31:29,029 --> 00:31:31,609 to a more physiological control to these mechanisms. 901 00:31:32,230 --> 00:31:34,390 So one area that Ashford's been looking at 902 00:31:34,390 --> 00:31:34,789 is, 903 00:31:35,589 --> 00:31:36,809 a condition called dysphagia, 904 00:31:37,535 --> 00:31:40,015 which where you ability to swallow. And this 905 00:31:40,015 --> 00:31:42,575 most commonly occurs after people have had a 906 00:31:42,575 --> 00:31:43,474 had a stroke. 907 00:31:43,775 --> 00:31:46,174 Now swallowing is is a coordination of about 908 00:31:46,174 --> 00:31:48,595 a dozen muscles within the within the throat, 909 00:31:48,990 --> 00:31:50,509 And they all have to have, they all 910 00:31:50,509 --> 00:31:52,750 have a rhythmical contraction, which needs to be 911 00:31:52,750 --> 00:31:53,250 coordinated. 912 00:31:54,349 --> 00:31:56,990 There are medical device therapies out there for 913 00:31:56,990 --> 00:31:57,490 dysphasia, 914 00:31:57,950 --> 00:31:59,309 but they tend to be, you know, a 915 00:31:59,309 --> 00:32:01,410 single point, electrical stimulation 916 00:32:01,789 --> 00:32:04,285 of the throat or they are special foods 917 00:32:04,285 --> 00:32:06,045 that makes it easier for the for the 918 00:32:06,045 --> 00:32:07,424 patient to to swallow. 919 00:32:08,285 --> 00:32:10,845 Whereas our technology, we're really good at taking 920 00:32:10,845 --> 00:32:13,245 input from those 12 muscles, which were currently 921 00:32:13,245 --> 00:32:14,705 dysfunctional and then coordinate 922 00:32:15,085 --> 00:32:18,409 their contraction into the appropriate rhythm to to 923 00:32:18,409 --> 00:32:19,629 enable swallowing. 924 00:32:22,250 --> 00:32:23,069 There obviously 925 00:32:23,690 --> 00:32:24,429 are the 926 00:32:24,970 --> 00:32:27,450 your di rest of your digestive tract also 927 00:32:27,450 --> 00:32:29,849 is coordinate is a coordination of multiple muscle, 928 00:32:29,849 --> 00:32:32,515 give that peristaltic motion. And there are certainly 929 00:32:32,515 --> 00:32:34,515 plenty of patients out there that have, 930 00:32:35,075 --> 00:32:35,575 problems 931 00:32:35,954 --> 00:32:38,454 with the, lower digestive tract. 932 00:32:39,075 --> 00:32:39,575 The 933 00:32:39,875 --> 00:32:42,275 example that I started with of your legs 934 00:32:42,275 --> 00:32:44,355 is, I suppose, is the most obvious one. 935 00:32:44,355 --> 00:32:46,519 And that's really the kind of 936 00:32:47,299 --> 00:32:47,799 ultimate 937 00:32:48,099 --> 00:32:49,559 application for our technology. 938 00:32:49,859 --> 00:32:50,440 I mean, 939 00:32:51,779 --> 00:32:54,359 Ashok talked about central pattern. Right? Is those 940 00:32:54,579 --> 00:32:57,139 those networks of of neurons in your in 941 00:32:57,139 --> 00:32:59,240 your spine are are amongst the most complicated 942 00:32:59,299 --> 00:33:01,234 ones that we thought we might we might 943 00:33:01,694 --> 00:33:02,515 tackle. But, 944 00:33:03,414 --> 00:33:06,015 I'm a little cat story. I had, people 945 00:33:06,015 --> 00:33:07,295 have told me to stop telling the cat 946 00:33:07,295 --> 00:33:09,375 story, but it's a bit off tangent. But 947 00:33:09,375 --> 00:33:11,055 basically if you go, if you go on 948 00:33:11,055 --> 00:33:12,974 YouTube, there is, and you can find it, 949 00:33:12,974 --> 00:33:15,390 there's a black, grainy black and white image, 950 00:33:15,789 --> 00:33:16,769 video really. 951 00:33:17,470 --> 00:33:19,109 And I imagine it's black and white because 952 00:33:19,109 --> 00:33:21,650 you probably can't do these experiments anymore, but 953 00:33:22,109 --> 00:33:23,630 what they've done to it, they've taken it 954 00:33:23,630 --> 00:33:25,789 out and they've decerebralized the cat. So basically 955 00:33:25,789 --> 00:33:28,029 severed the connection between the cat's brain and 956 00:33:28,029 --> 00:33:30,075 the cat's legs. So you would assume this 957 00:33:30,075 --> 00:33:31,835 cat to be paralyzed, but what they do 958 00:33:31,835 --> 00:33:32,875 is they take the cat and they put 959 00:33:32,875 --> 00:33:34,795 it onto a treadmill. And as soon as 960 00:33:34,795 --> 00:33:37,115 the cat's feet touch the treadmill, it starts 961 00:33:37,115 --> 00:33:39,355 to start to walk and they'll turn the 962 00:33:39,355 --> 00:33:40,875 treadmill up and the cat will start to 963 00:33:40,875 --> 00:33:42,234 run. And they, for some reason, they put 964 00:33:42,234 --> 00:33:43,595 a little trolley on the back of it 965 00:33:43,595 --> 00:33:45,419 and they pull the car. I don't know 966 00:33:45,419 --> 00:33:47,500 the necessity of doing that, but it just 967 00:33:47,500 --> 00:33:49,900 shows that it can change the gait, I 968 00:33:49,900 --> 00:33:52,059 suppose, of, of the animal, even though there's 969 00:33:52,059 --> 00:33:53,819 no connection there between the brain and the, 970 00:33:53,819 --> 00:33:55,259 and the, and the legs. Now I'd always 971 00:33:55,259 --> 00:33:56,940 assume that your brain had something to do 972 00:33:56,940 --> 00:33:58,974 with your ability to walk, but it seems 973 00:33:58,974 --> 00:34:00,575 that you just like where you want to 974 00:34:00,575 --> 00:34:02,034 go and then your legs kind 975 00:34:02,654 --> 00:34:04,815 of control themselves. And the way they do 976 00:34:04,815 --> 00:34:06,974 that is they send sensory inputs up to 977 00:34:06,974 --> 00:34:09,775 the spine, the central pattern generators process that 978 00:34:09,775 --> 00:34:11,474 information, then send the, 979 00:34:11,775 --> 00:34:14,489 the stimulator impulses down to your legs. And 980 00:34:14,489 --> 00:34:17,130 that provides the coordination of the muscles, which 981 00:34:17,130 --> 00:34:19,050 allows us, which allows us to walk. And 982 00:34:19,050 --> 00:34:22,190 that experiment that they performed, which is demonstrating 983 00:34:22,409 --> 00:34:23,210 that the 984 00:34:23,929 --> 00:34:26,030 legs is mediated by 985 00:34:26,489 --> 00:34:28,795 the nerves within the spine, rather than also 986 00:34:28,795 --> 00:34:30,315 the brain. So for us, that means that 987 00:34:30,315 --> 00:34:31,454 someone who's had a, 988 00:34:31,835 --> 00:34:33,994 a spinal cord injury, maybe it's even severed 989 00:34:33,994 --> 00:34:35,675 to the spinal cord, we could set we 990 00:34:35,675 --> 00:34:36,335 could rep 991 00:34:37,035 --> 00:34:38,954 those central pattern generators in the spine and 992 00:34:38,954 --> 00:34:41,135 restore the ability to to walk. 993 00:34:41,889 --> 00:34:42,949 Like Stuart explained, 994 00:34:43,250 --> 00:34:45,409 so these are central pattern generators that control 995 00:34:45,409 --> 00:34:47,969 the rhythms and then stimulate the muscles, and 996 00:34:47,969 --> 00:34:51,010 that generates different gait for the legs. And 997 00:34:51,010 --> 00:34:52,469 if there's somebody's amputated, 998 00:34:53,489 --> 00:34:53,989 and 999 00:34:54,369 --> 00:34:57,170 they can be used to control those artificial 1000 00:34:57,170 --> 00:34:57,670 legs. 1001 00:34:58,425 --> 00:35:00,664 But the control of arms is even more 1002 00:35:00,664 --> 00:35:01,965 complex where you have 1003 00:35:02,265 --> 00:35:02,765 different, 1004 00:35:03,224 --> 00:35:04,285 fingers and 1005 00:35:04,905 --> 00:35:07,485 different grip sizes. So this nonlinear 1006 00:35:08,265 --> 00:35:10,364 dynamics of the central pattern generators 1007 00:35:10,985 --> 00:35:12,445 can then be used to 1008 00:35:12,960 --> 00:35:14,420 control the movement of arms 1009 00:35:15,199 --> 00:35:17,280 with different crypt levels. If you imagine the 1010 00:35:17,280 --> 00:35:20,179 complexity of the network, it can be extended 1011 00:35:20,400 --> 00:35:22,260 by adding more neurons to it. 1012 00:35:22,559 --> 00:35:24,400 And this would presumably require quite a lot 1013 00:35:24,400 --> 00:35:26,019 of computational power as well. 1014 00:35:26,719 --> 00:35:28,545 It would. And if it's to be done 1015 00:35:28,545 --> 00:35:29,045 digitally, 1016 00:35:29,984 --> 00:35:31,525 but in analog systems, 1017 00:35:32,065 --> 00:35:33,764 it can be done much more efficiently, 1018 00:35:35,105 --> 00:35:36,644 because it'll be real time, 1019 00:35:37,425 --> 00:35:39,925 as it's a nonlinear and continuous time 1020 00:35:41,289 --> 00:35:42,349 signals generation. 1021 00:35:42,730 --> 00:35:43,369 So the 1022 00:35:45,049 --> 00:35:46,829 and lots of parameters are already 1023 00:35:47,289 --> 00:35:47,789 defined 1024 00:35:48,489 --> 00:35:50,889 so that you, ma'am, you'd you won't have 1025 00:35:50,889 --> 00:35:51,949 to look for the 1026 00:35:52,824 --> 00:35:55,485 certain level of inputs and then make decisions. 1027 00:35:55,625 --> 00:35:57,804 It will be much more dynamic than that. 1028 00:35:58,184 --> 00:36:00,445 So that's where the true power of the 1029 00:36:00,585 --> 00:36:01,724 continuous systems, 1030 00:36:02,824 --> 00:36:04,925 will be in nonlinear systems, will it? 1031 00:36:05,704 --> 00:36:05,945 Well 1032 00:36:06,905 --> 00:36:07,405 and 1033 00:36:07,980 --> 00:36:09,420 so final question for for both of you, 1034 00:36:09,420 --> 00:36:10,400 actually. You know, 1035 00:36:10,699 --> 00:36:12,079 what do you know now 1036 00:36:12,460 --> 00:36:14,380 that you wish you knew when you started 1037 00:36:14,380 --> 00:36:17,019 this journey back in 2016, in your case, 1038 00:36:17,019 --> 00:36:19,420 Stuart, and when you're starting on your your 1039 00:36:19,420 --> 00:36:20,639 postdoc Ashok? 1040 00:36:21,179 --> 00:36:22,755 I mean, it's certainly the I mean, there 1041 00:36:22,755 --> 00:36:24,114 are some of the boring ones and you 1042 00:36:24,114 --> 00:36:25,474 can fill them out. So, I mean, I 1043 00:36:25,474 --> 00:36:26,914 think the I think the clinic I think 1044 00:36:26,914 --> 00:36:28,114 the clinical side of things has been a 1045 00:36:28,114 --> 00:36:29,474 bit little bit of surprise. I mean, I 1046 00:36:29,474 --> 00:36:30,994 think that when we when we when we 1047 00:36:30,994 --> 00:36:32,994 can we thought the message the biggest challenge 1048 00:36:32,994 --> 00:36:34,755 was gonna be the regulatory approval for the 1049 00:36:34,755 --> 00:36:36,054 device, but we were actually 1050 00:36:38,460 --> 00:36:40,539 pretty pleased with the way with the speed 1051 00:36:40,539 --> 00:36:43,119 with which, you know, the the authorities processed, 1052 00:36:44,140 --> 00:36:46,460 and evaluated our technology. And that was really 1053 00:36:46,460 --> 00:36:46,960 straightforward. 1054 00:36:48,394 --> 00:36:50,315 Getting into the clinic, I was warned, I 1055 00:36:50,315 --> 00:36:52,074 think, that it would take 6 months from 1056 00:36:52,074 --> 00:36:54,155 that point to, to getting the first patient 1057 00:36:54,155 --> 00:36:55,614 in, and I didn't believe them. 1058 00:36:56,315 --> 00:36:58,234 And they were right. And they were right. 1059 00:36:58,234 --> 00:36:58,554 And, 1060 00:36:59,034 --> 00:37:01,230 yeah. And I, I didn't appreciate that the 1061 00:37:01,389 --> 00:37:03,630 just what is involved with what seemed to 1062 00:37:03,630 --> 00:37:04,849 be a relatively straightforward 1063 00:37:05,630 --> 00:37:06,130 straight. 1064 00:37:07,550 --> 00:37:09,889 In terms of starting out the 1065 00:37:11,230 --> 00:37:12,829 I think that it took us a little 1066 00:37:12,829 --> 00:37:13,650 bit of time. 1067 00:37:14,110 --> 00:37:15,889 I mean, the the thing about our technology 1068 00:37:16,110 --> 00:37:16,844 is that the 1069 00:37:17,405 --> 00:37:19,244 the clever bit is the is the, you 1070 00:37:19,244 --> 00:37:20,304 know, this this 1071 00:37:20,605 --> 00:37:21,344 this this core 1072 00:37:21,965 --> 00:37:23,824 technology, I say, that's actually 1073 00:37:24,125 --> 00:37:26,045 the the tech. The rest of the device, 1074 00:37:26,045 --> 00:37:27,565 you know, we talked about this the the 1075 00:37:27,565 --> 00:37:30,445 clinical study being involving an external pacing system 1076 00:37:30,445 --> 00:37:32,065 that we've modified with our technology. 1077 00:37:32,719 --> 00:37:33,539 So 99% 1078 00:37:33,920 --> 00:37:35,839 of the device is is just a standard 1079 00:37:35,839 --> 00:37:38,000 pacemaker and the implantable will be exactly the 1080 00:37:38,000 --> 00:37:39,920 same. It's just a pacemaker with our with 1081 00:37:39,920 --> 00:37:40,659 our chip 1082 00:37:40,960 --> 00:37:42,960 in place. So I think we started with 1083 00:37:42,960 --> 00:37:45,199 the premise that, you know, let's let's go 1084 00:37:45,199 --> 00:37:47,039 and talk to Medtronic or one of the 1085 00:37:47,039 --> 00:37:47,940 other big corporates. 1086 00:37:48,344 --> 00:37:50,184 They'll give us their pacemaker. We'll put our 1087 00:37:50,184 --> 00:37:51,758 chip in it. And there we go. That's, 1088 00:37:51,758 --> 00:37:54,105 that's, that's, that's kind of done. And there 1089 00:37:54,105 --> 00:37:55,704 were 2 things that we've learned over the 1090 00:37:55,704 --> 00:37:57,965 years. 1, they're not prepared to do that. 1091 00:37:58,344 --> 00:38:00,264 And 2, we don't need them to do 1092 00:38:00,264 --> 00:38:03,430 that actually because because this technology has been 1093 00:38:03,430 --> 00:38:04,809 around since the fifties, 1094 00:38:05,269 --> 00:38:06,890 most of the most of what's 1095 00:38:07,269 --> 00:38:08,489 required is there 1096 00:38:09,349 --> 00:38:12,630 is available from particular support. The technology and 1097 00:38:12,630 --> 00:38:14,710 the challenge of putting them together is not, 1098 00:38:14,710 --> 00:38:16,574 is not that great. So I think we're 1099 00:38:16,574 --> 00:38:19,074 much more self sufficient now than we were, 1100 00:38:19,535 --> 00:38:21,235 you know, 3 or 4 years ago. 1101 00:38:22,014 --> 00:38:22,335 When we 1102 00:38:23,135 --> 00:38:25,315 in terms of the route that we're choosing 1103 00:38:25,375 --> 00:38:27,869 to develop this technology, it's like, you know, 1104 00:38:27,950 --> 00:38:29,470 no one's gonna help you do this. You 1105 00:38:29,470 --> 00:38:31,470 just gotta do it yourself, but actually, doing 1106 00:38:31,470 --> 00:38:33,070 it yourself is probably the most efficient way 1107 00:38:33,070 --> 00:38:34,110 to do it anyway. So 1108 00:38:35,070 --> 00:38:36,269 Ashok, do you have anything to add to 1109 00:38:36,269 --> 00:38:36,769 that? 1110 00:38:37,710 --> 00:38:39,789 I I would add from my point of 1111 00:38:39,789 --> 00:38:40,769 view, I think 1112 00:38:41,414 --> 00:38:43,355 transition from academia to industry 1113 00:38:44,135 --> 00:38:45,855 has been a big learning, 1114 00:38:46,295 --> 00:38:48,155 although you hear lots of 1115 00:38:50,054 --> 00:38:50,554 suggestions, 1116 00:38:50,934 --> 00:38:53,755 they're all valid, but experiencing them and 1117 00:38:55,660 --> 00:38:58,140 actually, dealing with them is a slightly different 1118 00:38:58,140 --> 00:38:59,039 story. But, 1119 00:38:59,980 --> 00:39:02,219 especially with the start ups, things are very 1120 00:39:02,219 --> 00:39:02,719 dynamic. 1121 00:39:03,500 --> 00:39:06,619 And the key difference between academia and industry 1122 00:39:06,619 --> 00:39:08,699 is the pace at which you can do 1123 00:39:08,699 --> 00:39:11,284 the things. Of course, a lot of academic 1124 00:39:11,284 --> 00:39:12,744 work has been done. And when 1125 00:39:13,125 --> 00:39:15,704 you're making a product, even if it is 1126 00:39:15,924 --> 00:39:18,904 that level of complexity going into human body, 1127 00:39:21,125 --> 00:39:23,704 you can do things much faster than 1128 00:39:24,849 --> 00:39:26,070 in academia. And 1129 00:39:26,530 --> 00:39:27,989 so you need to be 1130 00:39:28,369 --> 00:39:31,590 mentally prepared for that dynamism in the startups. 1131 00:39:31,809 --> 00:39:32,309 And, 1132 00:39:33,969 --> 00:39:35,269 the other is the communication. 1133 00:39:36,609 --> 00:39:37,109 So 1134 00:39:38,784 --> 00:39:40,304 especially in our case, because there have been 1135 00:39:40,304 --> 00:39:41,765 multiple disciplines involved. 1136 00:39:42,224 --> 00:39:42,724 And 1137 00:39:43,265 --> 00:39:46,065 as Stuart mentioned, investors who are not from 1138 00:39:46,065 --> 00:39:49,125 science background or physics background, to convince them. 1139 00:39:49,184 --> 00:39:50,244 So you need to 1140 00:39:50,550 --> 00:39:52,010 speak at multiple levels, 1141 00:39:52,550 --> 00:39:53,289 of complexity 1142 00:39:54,309 --> 00:39:54,809 and 1143 00:39:55,670 --> 00:39:57,849 the details. Oh, and 1144 00:39:58,309 --> 00:40:01,110 it's a learning process. I'm still learning, and 1145 00:40:01,110 --> 00:40:02,949 then but I think I've come a long 1146 00:40:02,949 --> 00:40:03,449 way. 1147 00:40:03,829 --> 00:40:05,610 There's a long way to go as well. 1148 00:40:06,364 --> 00:40:08,444 Well, thank you both for for, coming and 1149 00:40:08,444 --> 00:40:09,964 and and talking to me today. I really 1150 00:40:09,964 --> 00:40:11,885 appreciate it. Stuart Naschach, thank you very much 1151 00:40:11,885 --> 00:40:13,664 for joining us in the Physicworld podcast. 1152 00:40:14,364 --> 00:40:16,144 Brilliant. Thank you very much. 1153 00:40:23,610 --> 00:40:25,369 I'm afraid that's all the time we have 1154 00:40:25,369 --> 00:40:26,750 for this week's podcast. 1155 00:40:27,130 --> 00:40:28,829 Thanks to CRX Medical's 1156 00:40:29,289 --> 00:40:30,269 Stuart Plant 1157 00:40:30,570 --> 00:40:32,030 and Ashok Chowan 1158 00:40:32,410 --> 00:40:34,110 for a fascinating discussion, 1159 00:40:34,464 --> 00:40:37,664 And also thanks to Margaret Harris for asking 1160 00:40:37,664 --> 00:40:38,405 the questions, 1161 00:40:38,784 --> 00:40:42,164 and to Fred Iles for producing the audio 1162 00:40:42,224 --> 00:40:43,284 in this podcast. 1163 00:40:43,824 --> 00:40:45,684 We'll be back again next week.