Protection means for two-piece needle

Details Protection means for two-piece needle Protection means for two-piece needle

1992-04-01

1993-06-22

Hindenburg, Max

Surgery

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

Treating material introduced into or removed from body...

A61M 532

Patent

active

052212661

ABSTRACT:
A device for safely taking bodily samples is taught. A stylet is held within a sheath and cap. The cap has biased flanges at the forward end thereof to prevent inadvertent forward extension and possible contamination with the stylet to a health care worker. The flanges are formed such that the needle is forwardly extendable past the flanges initially for use. Once retracted, the flanges prevent re-extension beyond offering protection to the user or other personnel. A strap connected to the stylet and the cap prevents the separation of the stylet from the cap. The cap is detachable from the sheath, thus allowing the stylet and the cap to be withdrawn leaving the sheath for use. The stylet would only be used once and discarded with the protective cap over the sharp end of the stylet. A fresh stylet and cap could be obtained for use with the original sheath if additional procedures with the same sheath is necessary.

REFERENCES:
patent: 4955866 (1990-09-01), Corey
patent: 5051109 (1991-09-01), Simon

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