Disposable automatic hypodermic needle guard
AssigneeSero-Guard Corporation
InventorsRichard C. Sircom, Yousef M. Youssef, Robert S. Solomon
Life of this patent
Estimating the term…
Abstract
A needle tip protecting device is provided for hypodermic needles, catheters, and the like. The device is small enough to be stored at the base of the needle prior to and during use. After use it may be slid to cover the needle tip where it automatically self-attaches and becomes non-removable. Various embodiments of mechanisms to achieve this effect are described.
Claims15
A needle tip protecting device for covering the tip of a needle comprising:
- (i) a body having an interior cavity;
- (ii) a locking plate positioned within said cavity, said locking plate having an opening therethrough, said opening being pierced by said needle with a close, sliding fit;
- (iii) alignment means to maintain said opening and said needle in sliding alignment while the needle tip is outside of said protecting means;
- and
- (iv) canting means to cant said locking plate into locking engagement with said needle against further removal from the needle when said tip enters within said body.
A needle tip protecting device for covering the tip of a needle having a smooth, continuous featureless outer surface adjacent the tip end thereof comprising:
- (a) a body with a needle passageway therethrough, for positioning the shaft of the needle to slide axially therein, said body being adapted to be mounted on and slidingly supported by said needle;
- (b) needle engagement means moveably distinct from but supported by said body for automatically engaging with a featureless portion of the surface of said needle to restrain said body against removal from the needle when the protecting device is moved from a position on the needle spaced from the tip to a position where said body encloses the tip;
- and
- (c) means carried by said body for prevention of the re-emergence of said needle from said body once the tip of said needle has been withdrawn within said body.
A needle tip protecting device as in claim further comprising handle means attached to said body, said handle means being disposed rearwardly from said needle in a storage position adjacent to said syringe.
Dependencies are inferred from the claim text.