Trocar assembly

Details Trocar assembly Trocar assembly

1984-08-06

1986-07-22

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604274, 128305, 30152, 30162, A61M 518

Patent

active

046017100

ABSTRACT:
A trocar assembly (70) formed from a trocar tube subassembly (74) and a separable, interfitting trocar subassembly (72). The trocar tube assembly includes a head (112) having a bore (120) into which a trocar tube (116) is fitted and a manually operated slide valve assembly (118) mounted transversely of the bore in the head. The valve has a bore (134) through it that may be aligned with the bore in the head by movement of the valve. The trocar subassembly includes a head (76) that has a bore (92) extending partly through it in which a trocar obturator (82) and a concentric tubular shield (86) are mounted such that the shield is capable of limited axial movement relative to the obturator between a normal, extended position in which the shield effectively covers the piercing tip (84) of the obturator and a retracted position in which the tip is exposed. The obturator and shield are inserted through the bore in the trocar tube subassembly head, the slide valve bore and the trocar tube. The bore in the slide valve has a radial tooth (136) in it that engages a slot (138) in the shield to reversibly lock the shield in its extended position when the slide valve is in its normal position. The valve is depressed manually to disengage the tooth to allow axial movement of the shield or separation of the trocar subassembly from the trocar tube subassembly.

REFERENCES:
patent: 2882598 (1959-04-01), Fidelman
patent: 4091537 (1978-05-01), Stevenson, Jr.
patent: 4230123 (1980-10-01), Hawkins, Jr.
patent: 4393587 (1983-07-01), Kloosterman
patent: 4414974 (1983-11-01), Dotson et al.
patent: 4419094 (1983-12-01), Patel
patent: 4447236 (1984-05-01), Quinn
patent: 4473076 (1984-09-01), Williams
patent: 4491132 (1985-01-01), Aikins
patent: 4523379 (1985-06-01), Osterhout et al.
patent: 4556059 (1985-12-01), Adamson, Jr.

Affiliated with

Also associated with

Rating

Trocar assembly 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 assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trocar assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-863992