Trocar and cannula assembly

Details Trocar and cannula assembly Trocar and cannula assembly

1992-09-21

1993-09-21

Weiss, John G.

Surgery

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

Treating material introduced into or removed from body...

604272, 604274, A61M 500

Patent

active

052464253

ABSTRACT:
The present invention provides an improved trocar assembly for use in creating an incision in a patient. The trocar of the present invention includes a unique piercing apex, which eases the insertion process, and an internal tip protector to protect the patient and medical personnel from accidental puncture injuries. The improved tip protector is designed to become fully extended immediately after the leading edge of the trocar enters the patient, thus avoiding many of the operational drawbacks of existing trocar tip protector designs. Additionally, the present invention provides an improved tip protector locking mechanism which is believed to be far simpler and more reliable than existing locking mechanisms.

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 et al.
patent: 4491132 (1985-01-01), Aikins
patent: 4523379 (1985-06-01), Osterhout et al.
patent: 4535773 (1985-08-01), Yoon
patent: 4556059 (1985-12-01), Adamson, Jr.
patent: 4601710 (1986-07-01), Moll
patent: 4654030 (1987-03-01), Moll et al.
patent: 4716901 (1988-01-01), Jackson et al.
patent: 4902280 (1990-02-01), Lander
patent: 4931042 (1990-06-01), Holmes et al.
patent: 5009642 (1991-04-01), Sahi
patent: 5066288 (1991-11-01), Deniega et al.
patent: 5104382 (1992-04-01), Brinkerhoff et al.
patent: 5127909 (1992-07-01), Shichman
patent: 5158552 (1992-10-01), Borgia et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1046387