Re: No more needle insertions for Continuous Glucose Monitors (CGMs)?


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Follow-up:

"Pro-Humanist FREELOVER" <prohuman@xxxxxxxxxxxx>
wrote in message news:igoien$62o$1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

"Nico Kadel-Garcia" <nkadel@xxxxxxxxx> wrote ...

On Jan 13, 9:29 am, "Pro-Humanist FREELOVER"
<prohuman@xxxxxxxxxxxx> wrote ...

Your misrepresentation of the Symphony technology
is obvious, but if you do reply to this post, do try to
address the excerpts/articles which dispute your
stance.

No, as wonderfully "patented" as the new scheme is, there' s nothing
in the articles or, frankly, in basic biology or fluid dynamics to
indicate that they've addressed the issues of unpredictable inaccuracy
and excessive calibration requirements that plagued the Glucowatch.
The fact that they've patented their new applicatior fluid doesn't
indicate that it works better, merely that it's probably distinct from
what the Glucowatch used. That doesn't address the problems of
membrane permeability or pH and humidity and temperature effects on
doing chemical testing on the other side of a watertight surface,
namely your *skin*.

Found some info related to some of your reply
below:

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Echo Therapeutics
http://www.reuters.com/finance/stocks/companyProfile?symbol=ECTE.OB
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- - -
Echo Therapeutics
http://www.lifetechcapital.com/reports/ECTE%20Initiation%2001-21-10.pdf

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Just one question. With an entirely separate
company, an entirely separate methodology,
and entirely separate mechanism, why are
you so certain of failure akin to the failure
of the Glucowatch to, per your quote, pro-
vide anything other than approximate glu-
cose readings?

The report of 97 percent accuracy compared
to the "gold standard" in the article you, once
again, failed to include in your reply, do you
interpret that as unreliable, questionable, and
if so, why would hospitals be considering the
Symphony device for use in hospital settings,
which certainly would not be amenable to the
types of variations in accuracy that you, per
your reference, report that Glucowatch exhi-
bits?

Oh well, since it's in clinical trials, we'll see
how the clinical trials pan out, and if those
are satisfactory, I will get one, and will get
back to you and to everyone else on how
often calibrations / re-calibrations are re-
quired, and on how my manual glucose
readings compare to my Symphony contin-
uous glucose monitor.

'Til then ... I'm willing to wait-and-see, and
of course, since you're typically negative
towards research / products, I will place
your concerns in the typically negative pile
of concerns you have regarding almost
every advance in Insulinitis treatment cur-
rently in the research / testing motif.

Another area of skepticism you have an
opportunity to contribute to, the efforts
of Parviz to come up with a glucose sen-
sor in a contact lens -- Any negative or
(and this would be surprising) positive
comments regarding that?

:-)

Well, the Parviz development, thoroughly
explored in another newsgroup. Here's a
link and excerpts from a recent article on
it:

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January 18, 2011

Super Smart Contact Lenses,
3D and Health Diagnostics
http://azooptics.com/Details.asp?newsID=12615
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By Andy Choi

The New Scientist is reporting on the latest
technology to take the world of augmented
vision by storm! We now have smart contact
lenses that monitor eye health with special
'in-eye' 3D image displays also being devel-
oped.

So the next time you gaze deep into some-
one's eyes, don't be surprised if you see: tiny
circuits ringing their irises, their pupils dancing
with pinpricks of light. These smart contact
lenses aren't intended to improve vision.
Instead, they will monitor blood sugar levels
in people with diabetes or look for signs of
glaucoma.

The 3D image lenses could also map images
directly onto the field of view, creating head-
up displays for the ultimate augmented reality
experience, without wearing glasses or a head-
set. To produce such lenses, researchers are
merging transparent, eye-friendly materials
with microelectronics.

All those 3DTVs and virtual reality goggles
might soon be rendered obsolete by these
contact lenses with built-in LED arrays that
can display images on top of your retinas.
Researchers at the University of Washington
have been working on extremely tiny and
semi-transparent LEDs designed to be inte-
grated into contact lenses. So far, they've
managed to create red pixels and blue pixels,
and when they can figure out green ones,
they'll be able to make full colour displays.

Despite being millimetres from the retina,
the images created by the lenses will be in
perfect focus, and when the display is turned
off, everything will be transparent. Since the
lenses are inside the eyelids, power will come
from a belt pack that will transmit electricity
wirelessly to a resonating antenna in the lens
itself, and data will be transmitted the same
way so that you don't have to plug cables into
your eye sockets!

In 2008, as a proof of concept, Babak Parviz
at the University of Washington in Seattle
created a prototype contact lens containing
a single red LED. Using the same technology,
he has now created a lens capable of monitor-
ing glucose levels ...

It works because glucose levels in tear fluid
correspond directly to those found in the
blood, making continuous measurement
possible without the need for ... [blood]
pricks, he says. Parviz's design calls for the
contact lens to send this information wire-
lessly to a portable device ...

Lenses that also contain arrays of tiny LEDs
may allow this or other types of digital infor-
mation to be displayed directly to the wearer
through the lens. This kind of augmented
reality has already taken off in cell phones,
with countless software apps superimposing
digital data onto images of our surroundings,
effectively blending the physical and online
worlds.

Making it work on a contact lens won't be
easy, but the technology has begun to take
shape. ...

Parviz, however, has taken a different ap-
proach. His glucose sensor uses sets of elec-
trodes to run tiny currents through the tear
fluid and measures them to detect very small
quantities of dissolved sugar. ...

Parviz plans to use a higher-powered antenna
to get a better range, allowing patients to
carry a single external device in their breast
pocket or on their belt. Preliminary tests show
that his sensors can accurately detect even
very low glucose levels. ...

"There's still a lot more testing we have to
do," says Parviz. In the meantime, his lab
has made progress with contact lens displays.
They have separately built lenses with 3D
optics that resemble the head-up visors
used to view movies in 3D.

Parviz has yet to combine both the optics
and the LEDs in the same contact lens, but
he is confident that even images so close
to the eye can be brought into focus. "You
won't necessarily have to shift your focus
to see the image generated by the contact
lens," says Parviz. It will just appear in front
of you, he says. The LEDs will be arranged
in a grid pattern, and should not interfere
with normal vision when the display is off.

....

It is really just a matter of time before LEDs
and their associated electronics get small
enough and affordable for all of us to enjoy
visual displays from the internet all the time.

- - - end excerpts - - -

- - -
Pro-Humanist FREELOVER
C.ure I.nsulinitis A.ssociation
http://prohuman.net/cureinsulinitisassociation.htm
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