Collar and cartridge-needle unit assembly

Details Collar and cartridge-needle unit assembly Collar and cartridge-needle unit assembly

1993-09-29

1995-09-05

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604197, 604263, A61M 532

Patent

active

054475007

ABSTRACT:
This invention relates to a collar adapted for use in combination with activatable prefilled cartridge-need units and disposable holders. The collar is adapted to fit over the hub of the cartridge-needle unit and comprises a solid circumferential neck; a circumferential foot interrupted in at least one point having inside and outside arcuate surfaces, the outside surface having thereon a circumferentially outwardly extending ring and the inside surface having thereon at least one radially inwardly extending shelf; and at least one leg connecting the neck to the foot. The collar provides improved safety reliability and thus reduces the susceptibility of health care workers to accidents, e.g., accidental needle strikes. In addition, the collar can be easily and economically manufactured, e.g., by conventional precision injection molding techniques.

REFERENCES:
patent: 2828743 (1958-04-01), Ashkenaz et al.
patent: 4288112 (1981-09-01), Stoll
patent: 4568336 (1986-02-01), Cooper
patent: 4585445 (1985-08-01), Hadtke
patent: 4720285 (1988-01-01), Pickhard
patent: 5033513 (1991-07-01), Bartholomew
patent: 5141500 (1992-08-01), Hake
patent: 5312370 (1994-05-01), Talonn et al.
patent: 5314414 (1994-05-01), Hake et al.

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