07193521 is referenced by 113 patents and cites 58 patents.

An improved pump, reservoir and reservoir piston are provided for controlled delivery of fluids. A motor is operably coupled to a drive member, such as a drive screw, which is adapted to advance a plunger slide in response to operation of the motor. The plunger slide is removably coupled to the piston. A method, system, and an article of manufacture for automatically detecting a force sensor failure in a medication infusion pump is provided. The electrical current to an infusion pump is measured. Based on the current measurements, the infusion pump detects when the plunger slide is seated in the reservoir, and detects a problem with the force sensor when the force sensor independently fails to register a value indicating that the plunger slide is seated in the reservoir.

Title
Method and apparatus for detecting errors, fluid pressure, and occlusions in an ambulatory infusion pump
Application Number
10/691187
Publication Number
7193521 (B2)
Application Date
October 22, 2003
Publication Date
March 20, 2007
Inventor
Ian B Hanson
El Segundo
CA, US
Sheldon B Moberg
Thousand Oaks
CA, US
Agent
Medtronic MiniMed
Assignee
Medtronic MiniMed
CA, US
IPC
G08B 21/00
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