I mean the article is scant on information but think about this.
He has no way to test things like bicarbonate in his blood, sodium, potassium, water concentrations and the like. If somehow he managed to find the exact flowrate needed with the exact dialysis membranes used for the exactly perfect amount of time that's great. Testing something like this on yourself is hardly worth the risk.
I don't think this is inspirational. I think it is dangerous. And it seems like the article is more of a half-truth. And kind of scary and I hope it doesn't inspire people to try and build medical equipment on their own and trust their lives to it.
How is this guy obtaining anti-coagulants in quantities needed?
How does he keep it sterile?
I agree that this really seems like the guy didn't really have renal failure or it is just some exaggerated media article.
On Tuesday, January 29, 2013 4:20:46 AM UTC-6, Bryan Bishop wrote:
On Tue, Jan 29, 2013 at 3:40 AM, Michael Turner--
<michael.eu...@gmail.com > wrote:
> On Tue, Jan 29, 2013 at 5:57 PM, Bryan Bishop <kan...@gmail.com> wrote:
>>> in purchasing power terms) from generally lower costs in China, it's
>>> possible this guy has given the world a huge breakthrough.
>>
>> Nope, actually the first dialysis machine was a washing machine and
>> some cans from a kitchen-- this guy is certainly not the first.
>>
>> "Dr. Willem Kolff, a Dutch physician, constructed the first working
>> dialyzer in 1943 during the Nazi occupation of the Netherlands.[5] Due
>> to the scarcity of available resources, Kolff had to improvise and
>> build the initial machine using sausage casings, beverage cans, a
>> washing machine, and various other items that were available at the
>> time."
>
> If I understand the NYT obit's use of the term "50 yards of sausage
> casing", the resulting contraption hardly looks like something you
> could put together out of a few kitchen appliances and bits of scrap.
> It's frickin' enormous, for one thing.
>
> http://postmanpatel.blogspot.jp/2009/02/inventor-of-kidney- dialysis-machine-in.html
That's a picture of multiple units of the rotating drum device, seen here:
http://homedialysis.org/types/museum
http://homedialysis.org/images/hdc_content/equipment/ th_kolff1.jpg
"""
The first practical artificial kidney was developed during World War
II by the Dutch physician Willem Kolff. The Kolff kidney used a
20-meter long tube of cellophane sausage casing as a dialyzing
membrane. The tube was wrapped around a slatted wooden drum. Powered
by an electric motor, the drum revolved in a tank filled with
dialyzing solution. The patient's blood was drawn through the
cellophane tubing by gravity as the drum revolved. Toxic molecules in
the blood diffused through the tubing into the dialyzing solution.
Complete dialysis took about six hours. The Kolff kidney effectively
removed toxins from the blood, but because it operated at low
pressure, it was unable to remove excess fluid from the patient's
blood. Modern dialysis machines are designed to filter out excess
fluid while cleansing the blood of wastes.
Blood was drained from the patient into a sterile container.
Anticlotting drugs were added, and the filled container was hung on a
post above the artificial kidney and connected to the cellulose
acetate tubing that was wound around the wooden drum. A motor turned
the drum, pulling the blood through the tubing by gravity.
The tank underneath the drum was filled with dialyzing fluid. As the
blood-filled tubing passed through this fluid, waste products from the
blood diffused through the tubing into the dialyzing fluid. The
cleansed blood collected in a second sterile container at the other
end of the machine. When all of the blood had passed through the
machine, this second container was raised to drain the blood back into
the patient.
"""
> Just because they improvised on some parts doesn't mean it wasn't a
> significant engineering effort, well beyond the scope of what's
> claimed in the South China Post article: "anybody with a high school
> education."
>
>>> (1) He'd was MISdiagnosed with total renal failure, and has failed to
>>> kill himself with amateur treatment for a condition he actually
>>> doesn't have.
>>
>> I don't see how misdiagnosis is relevant in this case. The article
>> wasn't about "... and he's not dead yet, therefore the treatment must
>> be working." Instead, it was about the fact that he even bothered, I
>> think.
>
> No, it claims more than that: that he was sick, that he "bothered,"
> AND he succeeded.
I know what they claim, but I wouldn't trust their ability to report
on two of those three anyway, so you can just throw out the rest.
>>> (2) He's a plucky (but not very ethical) entrepreneur, hoping to sell
>>> millions of DIYalysis kits before the authorities take much notice, on
>>> the strength of "See? I'm drinking my own Koolade!" pitch plus a lot
>>> of free publicity from overcredulous Chinese journalists.
>>
>> Eh, maybe. But apparently people have been purchasing less and less
>> home dialysis machines for years now. I don't see how this would
>> trigger a reversion in this trend.
>
> What trend? Not much of one.
Wikipedia seems to disagrees with you, there are references of a
declining trend of home dialysis.
> "annual per-patient costs for home dialysis are about $20,000 lower
> than for standard dialysis"
Yes, home dialysis is cheaper but I was talking about the trend of
people not choosing it.
> In my searches, the first article that turned up talking about how
> home dialysis might be a bit cheaper dates from 1972, which might have
again, i wasn't talking about it being cheaper. I am not a difficult
person to understand.
"""
In the USA there has been a large decline in home hemodialysis over
the past 30 years. In the early 1970s, approximately 40% of patients
used it. Today, it is used by approximately 0.4%.[20] In other
countries HNHD use is much higher. In Australia approximately 11% of
ESRD patients use HNHD.[20]
The large decline in HHD seen in the 1970s and early 1980s is due to
several factors. It coincides with the introduction and arise of
continuous ambulatory peritoneal dialysis (CAPD) in the late 1970s, an
increase in the age and the number of comorbidities (degree of
"sickness") in the ESRD population, and, in some countries such USA,
changes in how dialysis care is funded (which lead to more
hospital-based hemodialysis).
Home night-time (nocturnal) hemodialysis was first introduced by
Baillod et al.[25] in the UK and grew popular in some centers, such as
the Northwest Kidney Centers, but then declined in the 1970s
(coinciding with the decline in HHD). Since the early 1990s, NHHD has
become more popular again. Uldall[26] and Pierratos [27][28] started a
program in Toronto, which advocated long night-time treatments, (and
coined the term 'nocturnal home hemodialysis') and Agar[9] in Geelong
converted his HHD patients to NHHD.
"""
http://en.wikipedia.org/wiki/Home_dialysis
>
>>> SEVERAL generations? They have VR projectors in their cellphones?
>>
>> what is a "VR projector"
>
> VR=virtual reality.
what is a "VR projector"
- Bryan
http://heybryan.org/
1 512 203 0507
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