Medical needle and needle sheath assembly

Details Medical needle and needle sheath assembly Medical needle and needle sheath assembly

1993-11-12

1994-08-09

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604263, 128763, 128919, A61M 532

Patent

active

053361997

ABSTRACT:
A medical needle and needle sheath assembly is provided with a sub-assembly of sheath elements that may be actuated from a retracted nested condition to an extended non-nested condition to both surround and extend beyond the medical needle element to provide protection to the medical practitioner using the assembly. A blocker element contained within the sheath sub-assembly provides additional protection against inadvertent injury to the medical practitioner when the sheath sub-assembly is in its extended condition, and further provides an obvious indication of the sheath sub-assembly retracted and extended states.

REFERENCES:
patent: 4813940 (1989-03-01), Parry
patent: 4897083 (1990-01-01), Martell
patent: 4915702 (1990-04-01), Haber
patent: 5139489 (1992-08-01), Hollister

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