Safety syringe with retractable self-biased needle

Details Safety syringe with retractable self-biased needle Safety syringe with retractable self-biased needle

1992-09-28

1993-08-03

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604110, A61M 532

Patent

active

052324583

ABSTRACT:
A safety syringe includes: a hollow needle secured in a front portion of the syringe for injection use having a needle head portion formed on a rear portion of the needle, and a plunger slidably held in the syringe for boosting a liquid medicine in the syringe to be injected into a patient through the hollow needle having a biasing socket recessed in a front portion of the plunger engageable with the needle head portion for biasing the needle obliquely within the syringe when retracting the plunger and the needle into the syringe, thereby preventing an outward protruding of the retracted needle for preventing its injury or infectious contamination to the surroundings.

REFERENCES:
patent: 4804370 (1989-02-01), Haber et al.

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