Injection syringe

Details Injection syringe Injection syringe

1994-10-18

1996-02-06

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604220, 604195, A61M 500

Patent

active

054892724

ABSTRACT:
A tubular barrel having an inner surface with threads at a front end ther receives a chuck having corresponding threads for engaging the chuck to the barrel, the chuck having additional threads in an opposite sense for engaging a needle hub thereto. A piston received slidably in the barrel engages the rear of the chuck and is fixed against rotation relative to the hub, whereby a piston stem protruding from the rear of the barrel can be used to engage the chuck to the front end of said barrel. Cams provided on the inside surface cooperate with flexible cam followers on the chuck to make disengagement of the chuck from the barrel more difficult than engagement. A circumferential rib provided on the inside surface at the rear of the barrel impedes withdrawal of the piston, the stem being frangible to prevent the reuse.

REFERENCES:
patent: 4888002 (1989-12-01), Braginetz et al.
patent: 4919652 (1990-04-01), Alter et al.
patent: 5106372 (1992-04-01), Ranford
patent: 5246423 (1993-09-01), Farkas
patent: 5380285 (1995-01-01), Jenson

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2172860