Surgical cannula

Details Surgical cannula Surgical cannula

1986-04-07

1987-04-07

Truluck, Dalton L.

Surgery

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

Treating material introduced into or removed from body...

604167, A61M 500

Patent

active

046557520

ABSTRACT:
A surgical cannula having a first seal member having a substantially conical shape and an opening at the tip thereof, and a second seal member having a substantially conical shape and a slit at the tip thereof, whereby (a) when an instrument is inserted into the cannula, the instrument can pass through the first and second seal members into proximity with a surgical site located beneath the cannula, and fluid entering the cannula from the site will force the first seal member to close around the instrument and form a tight seal therewith so as to prohibit fluid from passing out of the cannula and (b) when no instrument is inserted into the cannula, fluid entering the cannula from the site will force the conical second seal member to close tightly on its slit and thereby form a tight seal so as to prohibit fluid from passing out of the cannula.

REFERENCES:
patent: 4000739 (1977-01-01), Stevens
patent: 4424833 (1984-01-01), Spector et al.
patent: 4436519 (1984-03-01), O'Neill
patent: 4438801 (1981-01-01), Timmermans

Affiliated with

Also associated with

Rating

Surgical cannula does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1084234