Disposable hypodermic syringe with retractable needle

Details Disposable hypodermic syringe with retractable needle Disposable hypodermic syringe with retractable needle

1989-03-06

1990-10-30

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604263, 604110, A61M 532

Patent

active

049665936

ABSTRACT:
A disposable hypodermic syringe capable of use only one time and including a needle which is automatically retracted within a tubular housing after use to prevent accidental needle sticks. The needle is normally locked in an extended position for normal injection use but then is automatically released through a release mechanism actuated by the same forward movement of the plunger within the syringe as is used to normally dispense the fluid from the syringe.

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