Hypodermic syringe having a protective sheath cover

Details Hypodermic syringe having a protective sheath cover Hypodermic syringe having a protective sheath cover

1985-11-01

1987-01-13

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604263, A61M 532

Patent

active

046362010

ABSTRACT:
Described is a hypodermic syringe which includes provision for a rigid sheath cover or sleeve which encompasses the rubber needle cover and provides protection in the operating mode as well as other advantages. The rubber needle cover is placed over the needle and provides a sterile barrier for the needle after the syringe unit is sterilized.
The sheath cover can be made of plastic and includes a plurality of teeth spaced about the opening of the cover. At least some of the teeth have a small lip projecting inwardly from the end of the teeth toward the center of the opening. When the rigid sleeve is inserted over the rubber needle cover, the lips slip over the cover to grip it so that when the sleeve is removed, the rubber cover is retained within the sleeve and the two are removed together. After the medicament is administered, the needle cover and sheath are replaced. In the event the needle pierces the rubber needle cover, the sheath prevents the needle from protruding, thereby providing protection for the user. The sheath cover also protects the rubber sleeve from light thereby preventing cracking.

REFERENCES:
patent: 2737949 (1956-03-01), Brown
patent: 3050059 (1962-08-01), Wall et al.
patent: 3253592 (1966-05-01), Von Pechmann
patent: 4317446 (1982-03-01), Ambrosio et al.
patent: 4430082 (1984-02-01), Schwabacher

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