Method and apparatus for applying electrical energy to medical i

Details Method and apparatus for applying electrical energy to medical i Method and apparatus for applying electrical energy to medical i

1997-05-14

1999-11-16

Buiz, Michael

Surgery

Instruments

Electrical application

607122, A61B 1736

Patent

active

059849215

ABSTRACT:
A safety-shielded trocar having an obturator with a linear cutting edge surface defining a base width substantially less than the diameter of the safety shield is disclosed. When the trocar is inserted through tissue, the tissue dilates from the width of the linear incision to accommodate the size of the safety shield of the trocar, thus making it possible to provide an access opening greater than the incisional width made by the linear cutting edge surface of the obturator. In a preferred embodiment, the safety shield has a shield tip region which is asymmetric to facilitate the dilation of the tissue as the trocar is inserted.

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