초록 ▼

A method and apparatus for automatically detecting an occlusion or drive system failure in a medication infusion system is provided. The electrical current to an infusion pump is measured and compared against a baseline average current. If the current exceeds a threshold amount, an alarm is triggere

A method and apparatus for automatically detecting an occlusion or drive system failure in a medication infusion system is provided. The electrical current to an infusion pump is measured and compared against a baseline average current. If the current exceeds a threshold amount, an alarm is triggered. Alternatively, pump motor encoder pulses are measured during a pump cycle. If the number of pulses do not correspond within a normal range, an alarm is triggered. After any alarm is triggered, the pump motor is driven in reverse for an incremental distance in order to relieve the fluid pressure in the system.

대표청구항 ▼

1. A method of detecting an occlusion in a fluid pump system, comprising:applying input power parameters to a pump motor to provide a first pump cycle; measuring a first encoder count during the first pump cycle; determining whether the first encoder count is less than a first value; and rewinding t

1. A method of detecting an occlusion in a fluid pump system, comprising:applying input power parameters to a pump motor to provide a first pump cycle; measuring a first encoder count during the first pump cycle; determining whether the first encoder count is less than a first value; and rewinding the fluid pump system at least to the point of reducing pressure in the fluid pump system after determining that the first encoder count is less than the first value.