i'm going to discuss with you three of my inventions that can have an effect on tens to a hundred million people which we will hope to see happen
we discussed in the prior film some of the old things that we did like stents and insulin pumps for the diabetic
i'd like to talk very
briefly about three new inventions that will change the lives of many people
at the present time it takes an average of three hours after the first symptoms of a heart attack are recognized by the patient before that patient arrives
an
emergency room and people with silent ischemia which translated into english means they don't have any symptoms
it takes even longer for them to get to the hospital the ami acute myocardial infarction which is a doctor 's big word so they can
charge you more money
means a heart attack
annual incidence one point two million americans
mortality three hundred thousand people dying each year
about half of them six hundred thousand have
permanent damage to their heart that will cause them to have very bad problems later on
nine hundred thousand people either have died or have
significant damage to their heart
muscle symptoms are often denied by the patient
then
approximately twenty five percent of all patients never have any symptoms what are we going to do about them how can we save their lives it's particularly true of diabetics and
elderly women
well what is needed for the earliest possible
warning of a heart attack a means to determine if there's a complete blockage of a coronary artery
that ladies and gentlemen is a heart attack the means consist of noting something a little technical
segment
elevation of the electrogram translated into english that means that if there's an
electrical signal in the heart and one part of the ecg which we call the st segment
elevates that is a sure sign of a heart attack and if we had a
computer put into the body of a person who 's at risk we could know
before they even have symptoms that they're having a heart attack to save their life well the doctor can
program a level of this st
elevation voltage
that will
trigger an
emergency alarm
vibration like your cell phone but right by your clavicle bone and when it goes beep beep beep
you better do something about it because if you want to live you have to get to some
medical treatment
so we have to try these devices out because the fda won 't just let us use them on people unless we try it out first and
the best model for this happens to be pigs and what we tried with the pig was
external electrodes on the skin
like you see in an
emergency room and i'm going to show you why they don't work very well and then we put a lead which is a wire in the right ventricle inside the heart which does the electrogram which is the signal voltage from inside the heart
well with the pig at the baseline before we blocked the pig 's
artery to simulate a heart attack that was the signal after forty three seconds
even an
expert couldn't tell the difference and after three minutes well if you really
studied it you'd see a difference but what happened when we looked inside the pig 's heart to the electrogram
there was the baseline first of all a much bigger and more
reliable signal second of all i'll bet even you people who are untrained
can see the difference and we see here an st
segmentelevation right after this sharp line look at the difference there
it doesn't take much every lay person could see that difference and computers can be programmed to easily
detect it
then look at that after three minutes we see that the signal that's
actually in the heart we can use it to tell people that they're having a heart attack even before they have symptoms so we can save their life
then we tried it with my son doctor tim fischell we tried it on some human patients who had to have a stent put in well
he kept the
balloon filled to block the
artery to simulate a blockage which is what a heart attack is and it's not hard to see that
elevation and if we had a
computer that could
detect it we could tell you you're having a heart attack so early it could save your life and prevent congestive heart failure
and then he did it again we filled the
balloon again a few minutes later and here you see even after ten seconds
a great rise in this piece which we can have computers inside under your chest like a pacemaker with a wire into your heart like a pacemaker
and computers don't go to sleep we have a little
battery and on this little
battery that
computer will run for five years without needing replacement
what does the
system look like well on the left is the imd which is implantable
medical device
and tonight in the tent you can see it they've exhibited it it's about this big the size of a pacemaker it's implanted with very
conventional techniques
and the exd is an
externaldevice that you can have on your night table it'll wake you up and tell you to get your tail to the
emergency room when the thing goes off because if you don 't you're in deep doo doo
and then finally a programmer that will set the level of the stimulation which is the level which says you are having a heart attack
the fda says okay test this final
device after it's built in some animal which we said is a pig
so we had to get this pig to have a heart attack and when you go to the
farmyard you can't easily get pigs to have heart attacks
so we said well we're experts in stents tonight you'll see some of our invented stents we said so we'll put in a stent but we're not going to put in a stent that we'd put in people
we took two
copper stents and we put it in the
artery of this pig and let me show you the result that's very gratifying
as far as people who have heart disease are
concerned there it was thursday morning we
the pig 's medication and there is his electrogram the signal from inside the pig 's heart coming out by radio telemetry
then on friday at six forty three he began to get certain signs which later we had the pig run around i'm not going to go into this early stage
but look what happened at ten six after we removed this pig 's medication that kept him from having a heart attack any one of you now is an
expert on st
elevation can you see it there
can you see it in the picture after the big rise of the qrs you see st
elevation this pig at ten six
was having a heart attack what happens after you have the heart attack this blockage your
rhythm becomes irregular
and that's what happened forty five minutes later then ventricular fibrillation the heart quivers instead of beats this is just before death of the pig
and then the pig died it went flat line but we had a little bit over an hour where we could 've saved this pig 's life well because of the fda we didn't save the pig 's life
because we need to do this type of animal
research for humans but when it comes to the sake of a human we can save their life we can
the lives of people who are at high risk for a heart attack what is the
response to acute myocardial infarction a heart attack today
finally you go to the
emergency room you wait as burns and other
critical patients are treated because seventy five percent of the patients who go to an
emergency room with chest pains don't have ami so you're not taken very seriously
they finally see you it takes more time to get your electrocardiogram on your skin and diagnose it and it's hard to do because they don't have the baseline data which the
computer we put in
finally if you're lucky you are treated in three or four hours after the
incident but the heart
muscle has died and that is the
typicaltreatment in the
advanced world not africa that's the
typicaltreatment in the
advanced world today
so we developed the angelmed
guardiansystem and we have a
device inside this patient called the implanted angelmed
guardian and when you have a blockage the alarm goes off
and it sends the alarm and the electrogram to an
externaldevice which gets your baseline electrogram from twenty four hours ago and the one that caused the alarm so you can take it to the
emergency room and show them and say take care of me right away
then it goes to a
network operations center where they get your data from your patient database that's been put in at some central
location say in the united states
then it goes to a diagnostic center and within one minute of your heart attack your signal appears on the
screen of a
computer and the
computer analyzes what your problem is and the person who 's there
the
medical practitioner calls you this is also a cell phone and says
mister smith you're in deep doo doo you have a problem we've called the ambulance
the
ambulance is on the way it'll pick you up and then we're going to call your doctor tell him about it we're going to send him the signal that we have that says you have a heart attack and we're going to send the signal to the hospital
and we're going to have it analyzed there and there you're going to be with your doctor and you'll be taken care of so you won 't die of a heart attack that's the first
invention that i wanted to describe
and their lives are being
totally ruined by it we have a
mission statement for our company doing migraine which is
know there's a certain faraday 's law which says if i apply a
magnetic pulse on salt water that's your brains by the way
so here 's a picture of what we're doing the patients who have a migraine preceded by an aura
have a band of excited neurons that's shown in red that moves at three to five millimeters a minute towards the mid brain
and when it hits the mid brain that's when the
headache begins there's this migraine that is preceded by a visual aura
and this visual aura by the way and i'll show you a picture but it sort of begins little with little dancing lights gets bigger and bigger until it fills your whole visual field
and what we tried was this here is a
device called the cadwell model mes ten weighs about seventy pounds
has a wire about an inch in
diameter and here 's one of the patients who has an aura and always has a
headache bad one after the aura what do we do
this is what an aura looks like it's sort of funny dancing lights shown there on the left and right side and that's a fully developed visual aura as we see on top in the middle
our experimentalist the neurologist who said i 'm going to move this down a little and i'm going to erase half your aura and by god
the neurologist did erase it and that's the middle picture half of the aura erased by a short
magnetic pulse what does that mean
that means that the
magnetic pulse is generating an electric current that's interfering with the
erroneouselectrical activity in the brain
and finally he says okay now i'm going to all of the aura get erased with an appropriately placed
magnetic pulse what is the result
we designed a
magnetic depolarizer that looks like this that you could have a lady in her pocket book and when you get an aura you can try it
and see how it works well the next thing they have to show is what was on abc news
channel seven last week in new york city in the eleven o'clock news
well my first
reaction was that it
but for christina sidebottom almost anything was worth
trying if it could stop a migraine
even frightening as you walk around with it in your purse but researchers here in ohio organizing clinical trials for this migraine zapper say
sound that in fact when the average person gets a migraine it's caused by something similar to an
electricalimpulse the zapper creates a magnetic
but is it safe to use every day experts say the
research has
actually been around for more than a
decade and more long term studies need to be done christina now swears by it
and that is the
invention to treat migraines
the problem is thirty million americans have migraine headaches and we need a means to treat it and i think that we now have
and this is the first
device that we did and i'm going to talk about my second wish which has something to do with this our conclusions from our studies so far at three
research centers is
there is a marked
improvement in pain levels after using it just once the most
severe headaches responded better after we did it several times and the
unexpectedfinding indicates that even established headaches not only those with aura
get treated and get diminished and auras can be erased and the migraine then does not occur and that is the migraine
invention that we are talking about and that we are
working on
third and last
invention began with an idea
epileptic focus now
unfortunately us
technical people
unlikemister bono have to get into all these
technical words well
we sense at a place in your brain which is called an epileptic focus which is where epilepsy where the epileptic seizure begins
we sense there that it's going to happen and then we
respond by applying an
electricalenergy at that spot
which erases the errant signal so that you don't get the clinical manifestations of the migraine headache
we use current pacemaker defibrillator technology that's used for the heart we thought we could adapt it for the brain the
device could be implanted under the scalp to be
totally hidden
and avoid wire breakage which occurs if you put it in the chest and you try to move your neck around form a company to produce a neuro pacemaker for epilepsy as well as other diseases of the brain because
all diseases of the brain are a result of some
electrical malfunction in it that causes many if not all of brain disorders
we formed a company called neuropace and we started work on responsive neuro stimulation and this is a picture of what the
device looked
in the scalp it's opened the neurosurgeon has a template he marks it around
and uses a
dental burr to remove a piece of the cranial bone exactly the size of our
device and tonight you'll be able to see the
device in the tent
and then we've with four screws we put in a frame then we snap in the
device and we run with wires the one shown in green will go to the surface of the brain with electrodes
to the epileptic focus the
origin of the epilepsy where we can sense the
electrical signal and have
computeranalysis that tells us when to hit it with some
electrical current to prevent the clinical
manifestation of the seizure
in the blue wire we see what's called a deep brain electrode if that's the source of the epilepsy we can attack that as well
the
comprehensivesolution this is the
device it's about one inches by two inches and oddly enough just the
thickness of most cranial bones
the advantages of responsive neurostimulation it can
detect and
terminate seizures before the clinical symptoms occur provide stimulation only when needed can be turned off if seizures disappear
it has minimal side effects as a matter of fact in all our clinical trials to date we've seen no side effects in the forty or so patients in whom it's been implanted
and it's an
invisible cosmetically
hidden so if you have epilepsy and you have the
device no one will know it because you can't tell that it's
and this shows what an electroencephalogram is and on the left is the signal of a
spontaneous seizure of one of the patients
then we stimulated and you see how that heavy black line and then you see the electroencephalogram signal going to
normal which means they did not get the epileptic seizure
that concludes my
discussion of epilepsy and which is the third
invention that i want to discuss here this afternoon
i have three wishes well i can't do much about africa i'm a tech i'm into
medical gadgetry which is
mostly high tech stuff like
mister bono talked about
the first wish is to use the epilepsy responsive neurostimulator called rns for responsive neurostimulator that's a
brilliant acronym
for the
treatment of other brain disorders well if we're going to do it for epilepsy why the hell not try it for something else
then you saw what that
device looked like that the woman was using to fix her migraines i tell you this that's something which some
research engineer like me would concoct not a real
designer of good equipment
we want to have some people who really know how to do this perform human
engineering studies to develop the optimum design
for the
portabledevice for treating migraine headaches and some of the sponsors of this ted meeting are such organizations
then we're going to
challenge the ted attendees to come up with a way to improve health care in the usa where we have problems that africa doesn't have and by reducing malpractice litigation
quickly to my first wish the brain operates by
electrical signals if the
electrical signals create a brain
disorderelectrical stimulation can
overcome that disorder
by
acting on the brain 's neurons in other words if you've screwed up
electrical signals maybe by putting other
electrical signals from a
computer in the brain we can
counteract that
a signal in the brain that triggers brain dysfunction might be sensed as a
trigger for electrostimulation like we're doing with epilepsy but even if there is no signal
such as obsessive compulsive
disorder that
presently is not well treated with drugs and includes five million americans and
mister fischer
and his group at neuropace and myself believe that we can have a
dramatic effect in improving ocd in america and in the world that is the first wish
the second wish is at the present time the clinical trials of transcranial
magnetic stimulators that's what tms means
the present
portabledevice is far from optimally designed both as to human factors as appearance i think she said it looks like a gun a lot of people don't like guns
engage a company having prior successes for human factors
engineering and
industrial design to optimize the design
of the first
portable tms
device that will be sold to the patients who have migraine headaches and that is the second wish
and of the one hundred thousand dollar prize money that ted was so
generous to give me i am donating fifty thousand dollars to the neuropace people to get on with the
treatment of ocd obsessive compulsive disorder
and i'm making another fifty thousand
available for a company to optimize the design of the
device for migraines and that's how i'll use my one hundred thousand dollar prize money
well the third and final wish is somewhat
unfortunately it's much more
complicated because it involves lawyers well
medical malpractice litigation in the us has escalated the cost
ended up badly the high cost of health care in the us is
partly due to litigation and insurance costs i've seen pictures
as a starting point for
discussion with the ted group a major part of the problem is the nature of the written
extent of informed consent that the patient or
spouse must read and sign
for example i asked the epilepsy people what are they using for informed consent would you believe twelve pages single space
the patient has to read before they're in our trial to cure their epilepsy what do you think someone has at the end of
reading twelve single space pages they don't understand what the hell it's about
that's the present
system how about making a video we have
entertainment people here we have people who know how to do videos with visual
presentation of the
anatomy and
procedure done with animation everybody knows
no i don 't well then let 's go to a simpler
explanation then there's a simpler one and oh yes i understand that well press the
button and you're on record you understand
and that is one of the ideas now also a video is done of the patient or
spouse and
medical presenter with the patient agreeing that he understands the
procedure to be done including all the possible
failure modes
the patient or
spouse agree not to file a lawsuit if one of the known
procedure failures occurs now in america in fact you cannot give up your right to trial by jury however
if the video is there that everything was explained to you and you have it all in the video file it'll be much less likely that some hotshot
lawyer will take this case on contingency because it won 't be nearly as good a case
if a
medical error occurs the patient or
spouse agree to a settlement for fair
compensation by
arbitration instead of going to
that would save hundreds of millions of dollars in legal costs in the united states and would
decrease the cost of medicine for
everyone these are just some starting points
and so there that's the end of all my wishes i wish i had more wishes but three is what i've got and there they are
生词表:
briefly [´bri:fli] ad.简短地;简略地 (初中英语单词)charge [tʃɑ:dʒ] v.收费;冲锋 n.费用 (初中英语单词)annual [´ænjuəl] a.每年的 n.年刊 (初中英语单词)permanent [´pə:mənənt] a.永久的;不变的 (初中英语单词)muscle [´mʌsəl] n.肌肉;体力;力量 (初中英语单词)computer [kəm´pju:tə] n.计算机;电子计算器 (初中英语单词)program [´prəugræm] n.说明v.为…安排节目 (初中英语单词)medical [´medikəl] a.医学的;医疗的 (初中英语单词)expert [´ekspə:t] n.&a.专家;内行 (初中英语单词)actually [´æktʃuəli] ad.事实上;实际上 (初中英语单词)system [´sistəm] n.系统,体系,制度 (初中英语单词)device [di´vais] n.装置;器具;策略 (初中英语单词)copper [´kɔpə] n.铜 a.铜制的 (初中英语单词)research [ri´sə:tʃ] n.&vi.调查;探究;研究 (初中英语单词)incident [´insidənt] n.小事件;事变 (初中英语单词)treatment [´tri:tmənt] n.待遇;对待;治疗 (初中英语单词)advanced [əd´vɑ:nst] a.先进的;高级的 (初中英语单词)screen [skri:n] n.银幕 vt.遮蔽 (初中英语单词)invention [in´venʃən] n.创造;发明;虚构 (初中英语单词)mission [´miʃən] n.代表团;使馆vt.派遣 (初中英语单词)channel [´tʃænəl] n.海峡;航道;途径 (初中英语单词)reaction [ri´ækʃən] n.反应(力) (初中英语单词)impulse [´impʌls] n.推动(力);冲动;刺激 (初中英语单词)improvement [im´pru:vmənt] n.改进,改善,进步 (初中英语单词)severe [si´viə] a.严厉的;苛刻的 (初中英语单词)working [´wə:kiŋ] a.工人的;劳动的 (初中英语单词)unlike [,ʌn´laik] a.不同的 prep.不象… (初中英语单词)respond [ri´spɔnd] v.回答;响应;有反应 (初中英语单词)energy [´enədʒi] n.活力,精力;能力 (初中英语单词)origin [´ɔridʒin] n.起源;由来;出身 (初中英语单词)analysis [ə´næləsis] n.分解;分析(结果) (初中英语单词)solution [sə´lu:ʃən] n.解答;解决;溶解 (初中英语单词)invisible [in´vizəbəl] a.看不见的;无形的 (初中英语单词)hidden [´hid(ə)n] hide 的过去分词 (初中英语单词)normal [´nɔ:məl] a.正规的 n.正常状态 (初中英语单词)discussion [di´skʌʃən] n.讨论;辩论 (初中英语单词)mostly [´məustli] ad.主要地;多半;通常 (初中英语单词)brilliant [´briliənt] a.灿烂的;杰出的 (初中英语单词)challenge [´tʃælindʒ] n.&vt.向….挑战;怀疑 (初中英语单词)overcome [,əuvə´kʌm] vt.战胜,克服 (初中英语单词)acting [´æktiŋ] a.代理的 n.演戏 (初中英语单词)presently [´prezəntli] ad.不久;目前 (初中英语单词)dramatic [drə´mætik] a.戏剧的;戏剧般的 (初中英语单词)industrial [in´dʌstriəl] a.工业的,产业的 (初中英语单词)generous [´dʒenərəs] a.慷慨的;丰盛的 (初中英语单词)available [ə´veiləbəl] a.可用的;有效的 (初中英语单词)complicated [´kɔmplikeitid] a.结构复杂的;难懂的 (初中英语单词)partly [´pɑ:tli] ad.部分地;不完全地 (初中英语单词)extent [ik´stent] n.长度;程度;范围 (初中英语单词)reading [´ri:diŋ] n.(阅)读;朗读;读物 (初中英语单词)entertainment [,entə´teinmənt] n.招(款)待;联欢会 (初中英语单词)explanation [,eksplə´neiʃən] n.解释;说明;辩解 (初中英语单词)button [´bʌtn] n.钮扣 vt.扣上(扣子) (初中英语单词)failure [´feiljə] n.失败;衰竭;破产 (初中英语单词)lawyer [´lɔ:jə] n.律师;法学家 (初中英语单词)decrease [di´kri:s, ´di:kri:s] v.&n.减少;减退 (初中英语单词)everyone [´evriwʌn] pron.=everybody 每人 (初中英语单词)emergency [i´mə:dʒənsi] n.事变;紧急关头 (高中英语单词)significant [sig´nifikənt] a.重要的;意义重大的 (高中英语单词)approximately [ə´prɔksimətli] ad.近似地,几乎正确地 (高中英语单词)elevation [,eli´veiʃən] n.高度;晋升;高尚 (高中英语单词)electrical [i´lektrikəl] a.用电的;与电有关的 (高中英语单词)external [ik´stə:nəl] a.外部的;外面的 (高中英语单词)studied [´stʌdid] a.故意的;有计划的 (高中英语单词)reliable [ri´laiəbl] a.可靠的;可信赖的 (高中英语单词)detect [di´tekt] vt.发觉;侦察 (高中英语单词)balloon [bə´lu:n] n.气球 (高中英语单词)battery [´bætəri] n.炮兵连;炮台;电池 (高中英语单词)concerned [kən´sə:nd] a.有关的;担心的 (高中英语单词)response [ri´spɔns] n.回答;响应 (高中英语单词)critical [´kritikəl] a.批评的;关键性的 (高中英语单词)typical [´tipikəl] a.典型的;象征的 (高中英语单词)guardian [´gɑ:diən] n.监护人;保护人 (高中英语单词)location [ləu´keiʃən] n.定位;位置;地方 (高中英语单词)headache [´hedeik] n.头痛;使人头痛的事 (高中英语单词)diameter [dai´æmitə] n.直径 (高中英语单词)decade [´dekeid] n.十年(间) (高中英语单词)unexpected [ʌniks´pektid] a.突然的;意外的 (高中英语单词)finding [´faindiŋ] n.发现物;判断;结果 (高中英语单词)unfortunately [ʌn´fɔ:tʃunitli] ad.不幸;不朽;可惜 (高中英语单词)technical [´teknikəl] a.技术的;专门性的 (高中英语单词)comprehensive [,kɔmpri´hensiv] a.综合的;理解的 (高中英语单词)thickness [´θiknis] n.厚;浓;粗;稠密 (高中英语单词)engineering [,endʒi´niəriŋ] n.工程技术;工程学 (高中英语单词)disorder [dis´ɔ:də] n.杂乱 vt.扰乱 (高中英语单词)procedure [prə´si:dʒə] n.过程;手续;方法 (高中英语单词)compensation [,kɔmpen´seiʃən] n.补偿,赔偿 (高中英语单词)mortality [mɔ:´tæliti] n.致命性;死亡率 (英语四级单词)elderly [´eldəli] a. 较老的,年长的 (英语四级单词)warning [´wɔ:niŋ] n.警告;前兆 a.预告的 (英语四级单词)vibration [vai´breiʃən] n.颤动;振动;摇动 (英语四级单词)artery [´ɑ:təri] n.动脉;干线 (英语四级单词)conventional [kən´venʃənəl] a.常规的;协定的 (英语四级单词)rhythm [´riðəm] n.(诗的)韵律;格律 (英语四级单词)network [´netwə:k] n.网状物 vt.联播 (英语四级单词)mister [´mistə] n.先生 vt.称…先生 (英语四级单词)ambulance [´æmbjuləns] n.救护车(船,飞机) (英语四级单词)totally [´təutəli] ad.统统,完全 (英语四级单词)magnetic [mæg´netik] a.磁(性)的 (英语四级单词)trying [´traiiŋ] a.难堪的;费劲的 (英语四级单词)terminate [´tə:mineit] v.终止,结束 (英语四级单词)counteract [,kauntə´rækt] vt.抵抗;阻碍;抵制 (英语四级单词)presentation [,prezən´teiʃən] n.介绍;赠送;提出 (英语四级单词)anatomy [ə´nætəmi] n.解剖(学) (英语四级单词)trigger [´trigə] n.扳机 vt.触发,启动 (英语六级单词)segment [´segmənt] n.部分;段;弓形 (英语六级单词)farmyard [´fɑ:mjɑ:d] n.农家场院 (英语六级单词)erroneous [i´rəuniəs] a.错误的 (英语六级单词)dental [´dentl] a.牙齿的;牙科(用)的 (英语六级单词)manifestation [,mænife´steiʃən] n.表明;现象 (英语六级单词)spontaneous [spɔn´teiniəs] a.自发的;自然的 (英语六级单词)designer [di´zainə] n.设计者 (英语六级单词)portable [´pɔ:təbəl] a.轻便的 n.手提打字机 (英语六级单词)spouse [spauz] n.配偶 (英语六级单词)arbitration [,ɑ:bi´treiʃən] n.仲裁;公断 (英语六级单词)