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Re: [IPk] bubbles bubbles bubbles!!!

To the question of weather you should or should not push air into your 
insulin vial, The answer would be to 'VENT' your insulin bottle by using two 
needles, One which is attached to your reservoir and the other which is just 
free standing to allow air to enter or leave the insulin vial to maintain 
the pressure.  Its something I don't do but it is something that can be done 
when drawing large volumes into a syringe.
----- Original Message ----- 
From: "Pat Reynolds" <email @ redacted>
To: <email @ redacted>
Sent: Saturday, June 03, 2006 11:26 AM
Subject: Re: [IPk] bubbles bubbles bubbles!!!
> Hi Sara,
> Do you use a paradigm?  These cartridges seem quite sensitive to torque
> - if you don't move the plunger up and down exactly straight, bubbles
> can occur, as the d-ring seal gets damaged in some way (at least, that's
> what I surmise from others' experiences).  If you continue to have
> problems, get a re-training session, and (particularly if you have
> problems with manual dexterity) talk to your DSN about swapping to a
> pump that has less sensitivity to kack-handedness.
> You are right about keeping the pressure lower in the bottle than in the
> cartridge (so that bubbles will want to go back in the bottle.  Also
> right that if you continually put in less air than you take out, it
> becomes harder and harder to get the insulin out at all.  You can stop
> that happening by equalising the pressure after each fill: simply take
> the needle once you've taken it off the cartridge, and push it back into
> the bottle (bottle upright) - there will be a little hiss as the
> pressure re-equalises.
> Cheers,
> Pat
> dm 30+, pumper 5+, left-handed and clumsy
> In message <email @ redacted>, Sara Pumford
> <email @ redacted> writes
>>I have only been on the pump for 10 days and i am already getting probs 
> >bubbles. it seems to be the only thing that is getting to me!! I changed 
> >my
> set
>>last night - took ages to make sure there were no bubbles ( even though 
>>were a few champagne ones). On looking at the resevoir this morning there 
>>quite a big bubble stuck to the bottom of the plunger that definately 
>> there last night. Do these bubbles normally disloge or do they stay stuck 
>> to
>>plunger? I have also noticed that at the end of the 3days when i take out 
>>old reservoir there are quite a few bubbles in it. I am thinking of not
>>injecting air into the vial when i start a new bottle but won't the 
>> build up inside the vial too much, as I was always taught to do this when 
>> i
>>to use syringes for my monotard years ago.
>>any info would help.
>>Sara Davies
>>Pumping 10 days (minimed 512)
> -- 
> Pat Reynolds
> email @ redacted
>   "It might look a bit messy now,
>                    but just you come back in 500 years time"
>   (T. Pratchett)
> .
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