Irrigating laparoscopic cannula or trocar

Details Irrigating laparoscopic cannula or trocar Irrigating laparoscopic cannula or trocar

1994-05-24

1995-10-17

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604280, A61M 5178

Patent

active

054586330

ABSTRACT:
A trocar consisting of a trocar in a central opening in a cannula. The cannula is provided with at least one separate passage running parallel to the central passage. The separate passage is connected to a source of cleansing fluid and a pumping means for pumping fluid through the separate passage. The separate passage terminates in an orifice near the distal end of the central opening of the cannula. In operation, when the cannula is used to provide access for a laparoscope or other viewing instrument, the end of the viewing instrument may become clouded with moisture and other debris. In this case, the end of the viewing instrument may be withdrawn into the distal end of the cannula adjacent the fluid orifices. The pumping means is actuated and cleansing fluid is forced over the end of the instrument cleaning away the obstructing matter without removing the instrument from the cannula.

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