Trocar with overlapping seal elements

Details Trocar with overlapping seal elements Trocar with overlapping seal elements

1993-03-11

1995-01-31

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604169, 604237, 604247, 604256, 604264, A61M 5178

Patent

active

053855523

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 at least three interleavened elastomeric sealing elements (124) which seal the path when an object, such as an obturator barrel (14), is not positioned along the path. The gas sealing assembly also includes a flexible, elastic, conical element (136) with a hole (158) at its tip and raised ridges or rings (164) along its inner surface (154) for sealing the path when an object is positioned along the path.

REFERENCES:
patent: 3994287 (1976-11-01), Turp et al.
patent: 4177814 (1979-12-01), Knepshield et al.
patent: 4430081 (1984-02-01), Timmermans
patent: 4610665 (1986-09-01), Matsumoto et al.
patent: 4623343 (1986-11-01), Thompson
patent: 4654030 (1987-03-01), Moll et al.
patent: 4655752 (1987-04-01), Honkanen et al.
patent: 4902280 (1990-02-01), Lander
patent: 4917668 (1990-04-01), Haindl
patent: 4931042 (1990-06-01), Holmes et al.
patent: 5041095 (1991-08-01), Littrell
patent: 5053016 (1991-10-01), Lander
patent: 5057084 (1991-09-01), Ensminger et al.
patent: 5066288 (1991-11-01), Deniega et al.
patent: 5098405 (1992-03-01), Peterson et al.
patent: 5104383 (1992-04-01), Schichman
patent: 5127626 (1992-07-01), Hilal et al.
patent: 5141498 (1992-08-01), Christian
patent: 5167636 (1992-12-01), Clement
patent: 5197955 (1993-03-01), Stephens et al.
patent: 5226879 (1993-07-01), Ensminger et al.
WO 91/17781, Brodsky, Nov. 28, 1991.

Affiliated with

Also associated with

Rating

Trocar with overlapping seal elements does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Trocar with overlapping seal elements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trocar with overlapping seal elements will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1100302