Trocar and seal arrangement

Details Trocar and seal arrangement Trocar and seal arrangement

1993-02-19

1994-10-11

Kruter, Jerome L.

Surgery

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

Treating material introduced into or removed from body...

604264, A61M 518

Patent

active

053542800

ABSTRACT:
A trocar (2) includes a hollow body (4) defining a path between its proximal and distal ends with an obturator assembly (6) positioned along the path. The tip (34, 36) of the obturator assembly has a cutting element (38). A novel gas sealing assembly (114) seals the path along the trocar body and includes a pair of elastomeric, disc-like slit barriers (122, 124) having opposed, convex surfaces (128) and a flexible, elastic, conical element (136) with a hole (158) at its tip. The conical element and the proximal barrier (122) have raised ridges or rings (144, 164) along their inner surfaces (142, 154).

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