Pump system for negative pressure wound therapy

Surgery – Means or method for facilitating removal of non therapeutic...

Reexamination Certificate

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Details

C604S541000, C604S313000, C604S304000, C604S305000, C601S006000

Reexamination Certificate

active

07857806

ABSTRACT:
A pump system for applying negative pressure to a wound, including a flow monitor capable of detecting a deviation from a reference airflow rate provided by a controlled leak to determine whether the system is operating normally or abnormally, and a flow status annunciator to indicate a normal operating condition or whether an abnormal condition is a leak or an occluded line in the system. The pump system further includes a pressure controller for regulating operation of a pump to control pressure in the system at a range around a user-selected setpoint. The pump system may also include a waste collector and a level sensor for detecting when the collector is full.

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