One piece disposable applicator

Details One piece disposable applicator One piece disposable applicator

1995-09-15

1997-08-19

McDermott, Corrine M.

Surgery

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

Treating material introduced into or removed from body...

604181, 604187, 604218, 604222, A61M 5315

Patent

active

056582587

ABSTRACT:
The applicator is assembled from an integral injection-molded part which includes an elongated flat strap from which a piston member projects at a right angle to one side and, at some distance therefrom, a cylinder member including a canula molded thereon projects at a right angle to the other side. The strap forms two spring arms of which the one, being bent by 180.degree., is first slid over the piston head with a recess. Subsequently, the cylinder is also fit onto the piston head, with the strap section that connects the piston to the cylinder head being also bent by 180.degree.. The piston head snaps in a rear position into the cylinder. The two biased spring arms always bias the piston in the direction of the rear end position, so that the applicator can be operated with one hand to take, for instance, blood from a container. Since the applicator can be manufactured in one piece in an injection-molding process with the aid of a simple on-off tool without slide, it is inexpensive and best suited as a disposable applicator.

REFERENCES:
patent: 5135507 (1992-08-01), Haber et al.

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