Self-cutting trocar

Details Self-cutting trocar Self-cutting trocar

1996-03-13

1997-01-07

Thaler, Michael H.

Surgery

Instruments

Cutting, puncturing or piercing

606185, 604164, A61B 1734

Patent

active

055911862

ABSTRACT:
A self-cutting trocar pin is provided near its distal end with active cutting tools, operated manually or motor driven. Therefore, the force which is normally needed to insert the trocar into a body is greatly reduced, and the insertion can be done under control to avoid the risk of injury during penetration of the abdominal wall. A gas flow sensor indicates opto acoustically, in connection with an opening near the distal end of the trocar pin, the penetration of the abdominal wall. The cutting tool of the trocar pin maybe, for example, a disc shaped blade, a chain knife, or manually operated straight blades.

REFERENCES:
patent: 4985035 (1991-01-01), Torre
patent: 5403296 (1995-04-01), Mohring et al.

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