kitedoc
Well-Known Member
- Messages
- 4,783
- Type of diabetes
- Type 1
- Treatment type
- Pump
- Dislikes
- black jelly beans
Better BSLs this evening. Have changed cartridge, tubing and needle/cannula. As @Jollymon said in the Insulin Pump forum -Trouble with needle ports thread, may be the metal cannula gets pushed into the layer between subcutaneous tissue and muscle and the flow of insulin is compromised even when the metal cannula lifts up again.
Just as a thought. I wonder what would happen if I injected some air partway into inserting the metal cannula so that there was a sort of buffer of air. Withdraw the cannula, fill the new tubing as usual with insulin, re-insert the cannula but to the full 6 mm etc. and hope the air bubble keeps the cannula tip clear of the tissue overlaying the muscle.
The trouble is that I do not know how long the air bubble in the subcutaneous area would stay for and an imaging doctor once told me that air under the skin it often assumed to be due to infection caused by gas-forming organisms - not a cheery thing to have, so one would need to be careful to state the cause of any air detected. Something to think over in the quest for better performance of the pump needle/cannula devices.
Just as a thought. I wonder what would happen if I injected some air partway into inserting the metal cannula so that there was a sort of buffer of air. Withdraw the cannula, fill the new tubing as usual with insulin, re-insert the cannula but to the full 6 mm etc. and hope the air bubble keeps the cannula tip clear of the tissue overlaying the muscle.
The trouble is that I do not know how long the air bubble in the subcutaneous area would stay for and an imaging doctor once told me that air under the skin it often assumed to be due to infection caused by gas-forming organisms - not a cheery thing to have, so one would need to be careful to state the cause of any air detected. Something to think over in the quest for better performance of the pump needle/cannula devices.