Trocar assembly

Details Trocar assembly Trocar assembly

1988-11-04

1991-10-15

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604272, 606167, A61M 5178

Patent

active

050570820

ABSTRACT:
An obturator is disclosed as being of a throwaway, single use, structure, preferably fully formed of thermoplastic, polymeric material and with a piercing and cutting end defined by non-planar faces having depressions formed therein to present cutting edges. The depressions are shaped by compound curves including a partial spherical surface, and angularly related, generally flat surfaces which define the cutting edges. The surfaces are of a shape and orientation as to provide spatial relief to the edges of the walls of a body to which the obturator is applied, thereby preventing stretching and tearing of the wall.

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