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US 11,890,088 B2Granted
Cannula insertion detection
AssigneeBecton, Dickinson and Company
InventorsAmit Limaye, Keith Knapp, Elizabeth Nelson, Patrick Allen, Amanda Masotta
Life of this patent
Estimating the term…
Abstract
Sensors are disclosed that detect whether a cannula is properly inserted to its full depth in a subject's skin. The sensors may be used with a blood glucose monitor, or with a continuous insulin infusion pump, infusion set, or other system involving intermittent or continuous testing and/or drug delivery.
Claims8
An insertion monitor, comprising:
- a housing adapted to be positioned on a subject's skin adjacent an insertion site, and having a recess receiving a spring loaded collar, and receiving a cannula, catheter or probe;
- the cannula, catheter or probe having a distal end with a sharpened tip and a proximal end fixed in the housing;
- the spring loaded collar comprising a collar surrounding the cannula, catheter or probe, and a spring positioned between the recess in the housing and the collar for sliding the collar along the cannula, catheter or probe under bias of the spring;
- a sensor detecting when the spring loaded collar is seated fully in the recess in the housing with a distal surface of the collar in a plane with a distal surface of the housing;
- and
- an alert mechanism triggered when the sensor detects cannula, catheter or probe insertion status.
3 more elements
Dependencies are inferred from the claim text.