Search found 50 matches

by jordansparks
Tue Jan 23, 2018 9:41 am
Forum: Forum
Topic: Unfreezable concentration
Replies: 0
Views: 7

Unfreezable concentration

I've decided it's time to increase the concentration of cryoprotectant that we use. We've been using 65%, but we're going to move closer to 80%. This concentration is known as an unfreezable concentration, because it won't freeze at any temperature or cooling rate. This only works for us because we ...
by jordansparks
Wed Jan 17, 2018 10:01 am
Forum: Forum
Topic: Aldehyde Stabilized Cryopreservation
Replies: 8
Views: 2738

Re: Aldehyde Stabilized Cryopreservation

I see the link above is broken. I've been more focused on developing protocols, and have eased up on trying to explain them to anyone. I just added a short explanation of toxicity to this page: http://www.oregoncryo.com/suspendedAnimation.html If you don't see it at first, hit refresh. Toxicity is w...
by jordansparks
Tue Jan 16, 2018 8:00 pm
Forum: Forum
Topic: Dewar lid needs paint
Replies: 3
Views: 1082

Re: Dewar lid needs paint

Not quite sure what you're getting at. A can of spray paint would be considered toxic, I suppose.
by jordansparks
Tue Jan 02, 2018 6:31 am
Forum: Forum
Topic: Intermediate Temperature Storage
Replies: 7
Views: 273

Re: Intermediate Temperature Storage

I'll have to make a web page to explain the cost comparisons. It's not lower cost after all. When compared to a CI Cryostat, it uses 3x as much LN2 per volume, and when compared to an Alcor Bigfoot, it uses 2x as much LN2. Those larger dewars are more efficient. But, for its size, it's probably abou...
by jordansparks
Mon Dec 18, 2017 6:33 am
Forum: Forum
Topic: Intermediate Temperature Storage
Replies: 7
Views: 273

Re: Intermediate Temperature Storage

The LN2 slowly hits a heat exchanger at the top of the space. Some gas gets vented out the top of the unit as this happens. If the heat exchanger gets too cold, it will pause for about 10 minutes to prevent liquid from coming out the heat exchanger and to prevent the exhaust gas from being too cold....
by jordansparks
Sun Dec 17, 2017 4:11 pm
Forum: Forum
Topic: Intermediate Temperature Storage
Replies: 7
Views: 273

Re: Intermediate Temperature Storage

It's a short and fat dewar, unlike many of the tall dewars in use in cryonics, so the stratification is not as significant. The cooling heat exchanger is at the top of the space. The top and bottom of the space do have slightly different temperatures. Might be a 5-6 degree difference? That spread is...
by jordansparks
Fri Dec 15, 2017 6:08 pm
Forum: Forum
Topic: Intermediate Temperature Storage
Replies: 7
Views: 273

Re: Intermediate Temperature Storage

It's been cooled down to -135, now. The thermostat is set so that if it warms to -131, it will start a cooling cycle with liquid nitrogen. The cooling cycle is gentler than I thought it would be, and takes well over an hour. Even more surprising to me is that it only has to cycle about once every 15...
by jordansparks
Fri Dec 15, 2017 5:34 pm
Forum: Forum
Topic: Forum is up again
Replies: 0
Views: 34

Forum is up again

I had to move the server that runs this forum over to a different building on the other side of town. It took a lot longer than I anticipated. I had to deal with some really complicated issues like permits, fiber, radios, new IP address blocks, etc. I didn't feel any huge urgency, because there aren...
by jordansparks
Sat Sep 23, 2017 12:25 pm
Forum: Forum
Topic: When Oregon Cryonics will accept Credit Cards ?
Replies: 4
Views: 117

Re: When Oregon Cryonics will accept Credit Cards ?

We don't currently accept credit cards. We do have a truck.
by jordansparks
Mon Sep 18, 2017 3:56 pm
Forum: Forum
Topic: Small planes
Replies: 2
Views: 454

Re: Small planes

I tried. I really did. But every pilot I met seems to have a story of a crash. Engines fail for many different reasons. There are visibility issues. There are instrument issues. You can't just slow down and pull over if something goes wrong. The statistics are out there. The risk is acceptable if yo...
by jordansparks
Thu Sep 14, 2017 2:33 pm
Forum: Forum
Topic: Craniotome
Replies: 1
Views: 409

Re: Craniotome

In spite of the usefulness of these tools, we are now going back to leaving the brain within the braincase, if at all possible. As I'm working on these brains, I just keep thinking, "would I want this done to me?" The answer is clearly no. There's too much human error, and just too much da...
by jordansparks
Mon Sep 11, 2017 9:26 am
Forum: Forum
Topic: Payment Plans
Replies: 0
Views: 160

Payment Plans

Normally, payment plans are never allowed in cryonics because it's not ethical to remove a patient from liquid nitrogen and cause the additional inevitable severe damage. But… things might be changing. If we have strong evidence of adequate fixation and cryoprotection, and if ITS is used, then subze...
by jordansparks
Fri Aug 18, 2017 9:40 am
Forum: Forum
Topic: Intermediate Temperature Storage
Replies: 7
Views: 273

Intermediate Temperature Storage

Our ITS dewar arrived last month, and we are trying to find time to test the LN2 consumption rate, etc. http://www.oregoncryo.com/intermediateTempStorage.html I'm really curious to see what the cost is to keep it running. I was really excited about it last year. But as I've thought hard about the pr...
by jordansparks
Fri Aug 18, 2017 9:33 am
Forum: Forum
Topic: Cannulation
Replies: 3
Views: 986

Re: Cannulation

Under one minute, now, with a clear path to achieve 30 seconds before too much longer. Just need to fabricate the newly-designed cannula.
by jordansparks
Tue Jul 25, 2017 4:32 pm
Forum: Forum
Topic: Cannulation
Replies: 3
Views: 986

Re: Cannulation

We are now down to under two minutes.
by jordansparks
Mon May 01, 2017 12:36 pm
Forum: Forum
Topic: Craniotome
Replies: 1
Views: 409

Craniotome

We only preserve brains, so it's important to have good tools for removing the skullcap in order to safely remove the brain. Over the last few years, we have tried a number of different tools, including an electric reciprocating autopsy saw, a cordless electric craniotome, a nitrogen-powered craniot...
by jordansparks
Wed Apr 12, 2017 9:39 am
Forum: Forum
Topic: Cannulation
Replies: 3
Views: 986

Re: Cannulation

Done! After years of work, we finally have a safe, reliable, and tested cannulation procedure. http://www.oregoncryo.com/manual/surgicalProcedures.html It currently takes about 8 minutes from start to finish for cannulation of the first carotid artery and beginning of washout. It should easily be po...
by jordansparks
Sun Apr 02, 2017 7:01 am
Forum: Forum
Topic: I'm Not Dead Yet!
Replies: 0
Views: 417

I'm Not Dead Yet!

This is a response to the following article which was just reposted by Aschwin de Wolf: http://www.evidencebasedcryonics.org/2017/04/01/im-not-dead-yet/?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+DepressedMetabolism+%28Institute+for+Evidence-Based+Cryonics%29 But of course t...
by jordansparks
Tue Mar 28, 2017 7:16 am
Forum: Forum
Topic: The Case for Brain Cryopreservation
Replies: 0
Views: 414

The Case for Brain Cryopreservation

Aschwin de Wolf has reposted an article from 2014: http://www.evidencebasedcryonics.org/2017/03/27/the-case-for-brain-cryopreservation/ Now that I have experience with the removal of dozens of brains, I have a lot to say about this article. Brain removal is not a good idea in traditional cryonics. I...
by jordansparks
Wed Mar 15, 2017 10:59 am
Forum: Forum
Topic: Singularity
Replies: 1
Views: 636

Re: Singularity

Kurzweil just gave an interview: https://futurism.com/kkurzweil-claims-that-the-singularity-will-happen-by-2029/ His new definition of the singularity (there are many shifting variations) is the point at which some computers could achieve roughly human-level intelligence. Well, that would be a miles...
by jordansparks
Fri Mar 10, 2017 12:02 pm
Forum: Forum
Topic: Tissue cryopreservation with inductive heating
Replies: 3
Views: 1227

Re: Tissue cryopreservation with inductive heating

There is a fallacy in argument called appeal to authority. It does not apply in this case because the authorities in question are experts on this topic. Now, I'm not aware of anyone having done a poll of the experts to see what their actual opinion of suspended animation is. If some of the experts t...
by jordansparks
Thu Mar 09, 2017 9:34 am
Forum: Forum
Topic: Tissue cryopreservation with inductive heating
Replies: 3
Views: 1227

Re: Tissue cryopreservation with inductive heating

Thank you for your thoughtful post. On any given highly specialized topic like this, there are only a handful of scientific experts in the world who deeply understand the topic. They have spent their entire lives learning all the nuances of the topic from all angles. Deep understanding matters. Thei...
by jordansparks
Wed Mar 08, 2017 10:44 am
Forum: Forum
Topic: Cannulation
Replies: 3
Views: 986

Cannulation

Cannulation refers to the surgical procedure of inserting a cannula (tube) into a major artery. This then allows various solutions and chemicals to be perfused (pumped) into the circulatory system. Cannulation remains our most urgent unsolved problem. We've spent years working on this problem, and i...
by jordansparks
Wed Mar 01, 2017 9:39 pm
Forum: Forum
Topic: Tissue cryopreservation with inductive heating
Replies: 3
Views: 1227

Tissue cryopreservation with inductive heating

This paper was published today: http://stm.sciencemag.org/content/9/379/eaah4586.full I have been skeptical that it might be possible to develop organ banking technology, and I have been vocal about my skepticism. After reading this paper, I will now admit that organ banking is theoretically possibl...
by jordansparks
Wed Mar 01, 2017 9:51 am
Forum: Forum
Topic: Small planes
Replies: 2
Views: 454

Small planes

As part of my presentation at Laughlin a few years ago, I talked about using small planes to create a regional cryonics service. Shortly after that talk, I finished some advanced pilot training and got my instrument rating so that I could be just a few hours from any patient in need, between Seattle...
by jordansparks
Fri Feb 24, 2017 1:18 pm
Forum: Forum
Topic: Dr. Jose Cordeiro
Replies: 0
Views: 471

Dr. Jose Cordeiro

Dr. Jose Cordeiro just gave a talk: https://www.youtube.com/watch?v=3Vyw34o7KLo At 26:38 in the video, the three laws of the future were shown from Sir Arthur C. Clarke. Let's add another one. When someone says a fantastic new technology is coming in only 20 years, he is almost certainly wrong. Inst...
by jordansparks
Wed Feb 22, 2017 3:12 pm
Forum: Forum
Topic: Singularity
Replies: 1
Views: 636

Singularity

The term "singularity" has been used quite a bit recently to describe a supposed runaway technological growth due to an AI. It's complete nonsense with no good supporting evidence. It seems to be based loosely on Kurzweil's exponential growth graphs or on Moore's Law. In the real world, gr...
by jordansparks
Wed Feb 22, 2017 10:32 am
Forum: Forum
Topic: RAAD Festival
Replies: 0
Views: 470

RAAD Festival

RAAD Fest 2017 is being promoted, and it makes me sick. What a bunch of suckers. http://raadfest.com/ To be absolutely clear, there are ZERO life extension technologies currently available. So here's how they advertise it: "Learn everything from the latest life extension science, to how to stre...
by jordansparks
Wed Feb 22, 2017 9:54 am
Forum: Forum
Topic: Dr. Michio Kaku
Replies: 0
Views: 439

Dr. Michio Kaku

New conversation was posted with Dr. Michio Kaku, regarding digital immortality: http://video.foxbusiness.com/v/5271009970001/?#sp=show-clips Dr. Kaku has discussed cryonics in the past: https://www.youtube.com/watch?v=eUjWcOGb8AE His critique on cryonics was basically correct if you assume he was o...

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