Trocar assembly

Details Trocar assembly Trocar assembly

1995-03-08

1998-02-03

Hafer, Robert A.

Surgery

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

Treating material introduced into or removed from body...

604 26, 604 42, 604164, 604165, 604175, 604178, A61M 532, A61M 5178

Patent

active

057138699

ABSTRACT:
An improved trocar assembly including an elongate shaft, with an open proximal end, an open distal end, an axial channel, and a substantially smooth exterior surface so as to prevent frictional engagement of the exterior surface with various tissue plains at an incision opening in the patient, and a distal expandable component, disposed substantially at the distal end of the elongate shaft and having at least one inflatable cuff structured to selectively maintain the elongate shaft partially within the patient subsequent to its insertion into the patient. Further, the inflatable cuff is preferably formed of a substantially non-elastic material such that a wall thickness thereof will be uniform along its entire surface both when it is in an inflated and uninflated orientation, thereby substantially reducing a likelihood that the inflatable cuff will rupture, while allowing the inflatable cuff to seal-off the incision opening about the elongate shaft to prevent airflow from an interior of the patient through the incision opening. Additionally, an upper collar assembly is slideably disposed on the elongate shaft and is structured to be locked in place along the elongate shaft so as to substantially captivate the various tissue plains of the patient between the upper collar assembly and the inflatable cuff, in its inflated state.

REFERENCES:
patent: 4637814 (1987-01-01), Leiboff
patent: 4649913 (1987-03-01), Watson
patent: 5002557 (1991-03-01), Hasson
patent: 5176697 (1993-01-01), Hasson et al.
patent: 5437645 (1995-08-01), Urban et al.

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-657929