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[IP] Waterproof-ness was: Choose by Color

Regarding the water-proofness of the Disetronic pump.  The red cap does
not change the waterproof-ness.  If you look at it you would see that it
does not provide a tight seal, ie., there are no O-rings or other
sealing device.  The waterproofness comes from the linkage between the
motor and the drive for the screw.  This is waterproof.  If this joint
fails, then the pump can obviously leak, otherwise the pump is
"guarenteed" waterproof.

The cap simply resitricts the volume of water that can leak into the
chamber that houses the insulin cartridge.  I swim 3-4 times a week with
my Disetronic and sometimes I have measurable water in the chamber.  The
insulin cartridge is sealed above by the "adapter" and luer lock, and
below by the plunger in the cartridge.  

Regarding the seemingly endless debate of which pump is better, can't we
all just give it a rest.  I doubt that anyone is going to "change their
allegiances and admit, "Yup, my pump is second best."  We have too much
invested in our own pumps, monetarily and emotionally, to say that.  
The people who ask the questions regarding which pump they should buy
frankly should ignore what anyone else says and look and compare for
themselves to see which one better fits their needs (this is not which
one is better).  Most of us, I hope took that route to reach our
decisions, why not let everyone else the same priveledge.  Even if they
don't think of it as a priveledge, perhaps simply suggesting that may be
our best service to them.

Somtimes, reading time and time again, why the [MiniMed/Disetronic]
(fill in the blank) pump is better gets very old.


Date: Mon, 4 May 1998 17:10:20 +0000
From: "Randall Winchester" <email @ redacted>
Subject: Re: [IP] Choose by color?

On  4 May 98 at 16:51, Raillfan wrote:

> Choosing a pump because of the color??? I Chose the Disetronic because it
> seems to be of a more durable and rugged design (I did not like the battery
> door on the Minimed), plus the Disetronic is water proof!!! (the Minimed I
> believe is just resistant).All you have to do is put the cap on top of the
> cartridge cap to plug the two pressure equalization holes. I went Snorkling in
> the Carribean for 3 hours straight with my pump. And even if you forget to put
> the cap on, or lose it the worst that might happen is water would possibly mix
> in with the insulin, it still won't get inside the pump unless you have one or
> both of the batteries missing.

I've heard someone at one of the local meetings talk about frying 
their D pump when they dropped it in the toilet.  Seems they forgot 
to put the cap on first.  A couple of other people I know have 
dropped their 507's in the lake and not had any problems with it.  
 Just rinse it off,  dry the lead screw off and away you go.   

I'm confused about "battery door" - the 507 has a battery compartment 
that opens with a coin and the holder containg the three little 
batteries pops out.  This compartment is sealed with an O-ring for 
water resistance too...  

> And to answer WM's question, yes the Disetronic has an audio bolus, it beeps
> each time you push the button, then it repeats the beeps back before it
> delivers so you can count them again and double check yourself.
> Scooter

One of the interesting differences is that the D pump uses an 
unmarked cartridge that you fill and if you get it right the pump can 
sort of tell you how much insulin you have left.  On the MM pump you 
just read it directly off the syringe markings.  

The cosmetic or appearance thing is important to a lot of people and 
on that count the MiniMed seems to win.   On the Disetronic web site 
there was a posting a while back warning people not to fly with the 
cap on their pump because it caused problems.  

Lots of features on both pumps and you have to decide which ones are 
important to you.  I went with MiniMed for several reasons and other 
people choose the Disetronic pump.  The constant claim of waterproof 
(if you put the cap on first) is wearing a little though... If I had 
one of those I'd never have the cap with me when I needed it...   The 
bottom line comes down to a few questions:

1. Do you understand how the pump operates?
2. Does it do what you want it to?
3. Does your doctor have a clue about how the pump works?
4. Which one do you like better?

On items 1 & 2 the pumps are basically equivalent.  On item 3 we've 
discussed many times how some medical professionals are, so we don't 
have to visit that again.  Either the doctor does or doesn't, and 
your milage will vary.

Item 4 is an individual question, and people can argue both sides and 
not get anywhere.  It boils down to a lot of things, including how 
you were introduced to that pump, who else you know that uses one, 
what your relationship with the rep, trainer, CDE and other 
influences are, and sometimes even just a plain old emotional 
response to the physical appearance of the pump.    The first insulin 
pump I ever saw was one of those big, heavy electro-mechanical 
devices with nicads that you had to carry with a shoulder strap 
and change the batteries constantly...  and my reaction to that thing 
caused me to shy away from an insulin pump for a long time... 
Randall Winchester    >>>
Insulin-Pumpers website http://www.bizsystems.com/Diabetes/
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