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Re: [IPk] Bubbles



Liam that sounds a bit difficult!! As it happens, if you are extracting
insulin from a pen vial, you don't need to do any pushing. Here's how. Just
pierce the rubber seal at the business end with your EMPTY syringe and
needle in the usual way, and start to draw back. As insulin is drawn in, the
plunger will move down the vial on its own, taking up the space being
vacated by insulin. It's the hydraulic principal, and these plungers are
tight enough that air wil not get sucked past them into the vial. Hence you
can give up pushing it with a needle cap.

A couple of potential problems are, that you will often run out of insulin
in mid fill I imagine, unless a fill is exactly one vial. Also it is
possible that the syringe for the pump is less well sealed than a normal
insulin syringe, and it may release bubbles as you draw insulin into it. If
either of these are a porblem, try changing to 10ml vials like most other
minimed pumpers I suppose (and then you will have to inject air into the
vial as you fill it, i.e. fill the syringe with air to the exact point you
want to fill it with insulin, then put needle into bottle and inject a
little air before withdrawing a little insulin, then repeat with bottle
above and syringe held vertically below, until you inject the last bit of
air into the bottle and withdraw the last bit of insulin to your required
measurement). Sorry to be so long-winded.

Tony
----- Original Message -----
From: "Liam Bateman" <email @ redacted>
To: <email @ redacted>
Sent: Tuesday, April 30, 2002 11:18 AM
Subject: Re: [IPk] Bubbles


> Just try pushing air into a novorapid penfill vial.
>
> I assume it's messy ;) I've not been stupid enough to do it yet
>
> I usually use the protective cap from the IV needle to push the plunger in
the pen fill vial down.
>
>  I think I may ask my doc for some of the 10 ml vials aswell as my pen
vials
>
> Cheers, Liam
>
> *********** REPLY SEPARATOR  ***********
>
> On 29/04/2002 at 23:40 Vic Brooks wrote:
>
> >Hi my name is vic and have been a diabetic for 40 years and when i was
> >being
> >tough to fill my siring from the insulin vial we had to inject air in to
> >the
> >vial   so this is what i do you will see when you try that when you do
this
> >the preshear in the vial will push the insulin in to the reservoir but be
> >careful that you do not let air in by not keeping the reservoir strait
try
> >it and best of luck
> >                 vic
> >----- Original Message -----
> >From: "Alison Orchard" <email @ redacted>
> >To: <email @ redacted>
> >Sent: Sunday, April 28, 2002 1:27 PM
> >Subject: Re: [IPk] Bubbles
> >
> >
> >> Hi Jenny
> >>
> >> Take the belt clip off the back of the pump and whack the reservoir
with
> >> it!  It works great for dispersing bubbles.
> >>
> >> Alison
> >>
> >> email @ redacted>, jenny davey <email @ redacted>
> >> writes
> >> >Hello all
> >> >
> >> >Does anyone have a foolproof way of getting rid of any
> >> >bubbles in an insulin reservoir?
> >> >I must admit I tend to rush the whole procedure before
> >> >work in the morning, so after a few flicks of the
> >> >reservoir I generally give up. I am using the Minimed
> >> >508, so I fill the reservoirs myself from a vial.
> >> >
> >> >Any advice greatly appreciated!
> >> >
> >> >Jenny
> >> >
> >> >
> >> >=====
> >> >
> >> >
> >> >__________________________________________________
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> >> >----------------------------------------------------------
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> >>
> >> --
> >> Alison Orchard
> >> ----------------------------------------------------------
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> >> help SUPPORT Insulin Pumpers
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> >----------------------------------------------------------
> >for HELP or to subscribe/unsubscribe, contact: HELP@insulin-pumpers.org
> >help SUPPORT Insulin Pumpers http://www.insulin-pumpers.org/donate.shtml
> ----------------------------------------------------------
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> help SUPPORT Insulin Pumpers http://www.insulin-pumpers.org/donate.shtml
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