Irrigation system with high flow bypass for use with endoscopic

Details Irrigation system with high flow bypass for use with endoscopic Irrigation system with high flow bypass for use with endoscopic

1991-10-29

1994-06-21

Lewis, Ralph

Surgery

Means for introducing or removing material from body for...

Material introduced into and removed from body through...

604 27, 604153, A61M 100

Patent

active

053225066

ABSTRACT:
An irrigation system for irrigating and pressurizing a body cavity during an endoscopic procedure, such as during arthroscopy, includes a source of irrigation liquid, a pneumatically driven pump for pumping irrigation liquid from the source into the body cavity. The pump develops pulsatile flow and its operation is controlled by a pressure regulator that regulates the pressure of air applied to the pump. The system enables disablement of the pumping function of the pump while permitting gravity flow of irrigation liquid to the body cavity. The pump and associated tubing is inexpensive and adapted for one-time, disposable use. The system includes a pump bypass mode that enables liquid to flow at a high rate as may be needed to maintain pressurization of the body cavity as that which occurs during arthroscopic shaving.

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