Smoke evacuator for a surgical laser or cautery plume

Details Smoke evacuator for a surgical laser or cautery plume Smoke evacuator for a surgical laser or cautery plume

1998-03-30

1999-10-19

Smith, Jeffrey A.

Surgery

Instruments

606 10, 606 34, 606 38, 604 35, A61B 1700

Patent

active

059680326

ABSTRACT:
A surgical smoke evacuator for a surgical laser or cautery plume is disclosed. The evacuator includes collection tubing through which surgical smoke is drawn. The collection tubing has a distal end nozzle where the surgical smoke enters the evacuator. The evacuator also includes a variable vacuum motor coupled to the collection tubing for generating suction pressure at a distal end nozzle of the evacuator to draw smoke from a surgical site. A first filter is provided for removing particulates from smoke flowing through the evacuator. The first filter is in fluid communication with the distal end nozzle of the evacuator and the variable motor. A first sensor is attached to the first filter for detecting tissue invagination and a pressure relief device is associated with the evacuator for reducing the suction pressure within the evacuator when the first sensor senses tissue invagination. Finally, the evacuator includes a flow control mechanism interfaced with the first sensor for varying the operation of the variable vacuum motor according to the status of the first filter.

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