09173998 is referenced by 3 patents and cites 206 patents.

Occlusions in a delivery line of an infusion pump can be detected by measuring pressure differentials in the pump over short periods of time in order to minimize the effects of long term systematic sensor changes. In a delivery mode such as basal insulin delivery where a small portion of a volume of fluid is delivered, pressure readings can be obtained before and after the motor move to deliver each portion and compared. The differentials after one or more motor moves can be compared to determine whether an occlusion is present. In a delivery mode such as bolus insulin delivery in which an entire volume of fluid is delivered, pressure differentials can be obtained for consecutive deliveries at a common point in the delivery cycle of each delivery. Comparison of these pressure values can be used to determine whether an occlusion is present.

Title
System and method for detecting occlusions in an infusion pump
Application Number
13/829115
Publication Number
9173998 (B2)
Application Date
March 14, 2013
Publication Date
November 3, 2015
Inventor
Paul Harris
San Diego
CA, US
Geoffrey Kruse
San Diego
CA, US
Mike Rosinko
Anaheim
CA, US
Agent
Patterson Thuente Pedersen P A
Assignee
Tandem Diabetes Care
CA, US
IPC
A61M 5/142
A61M 5/168
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