Degradable syringe

Details Degradable syringe Degradable syringe

1989-12-14

1990-12-11

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

A61M 500

Patent

active

049766937

ABSTRACT:
A syringe which can be filled immediately before use or which can be pre-filled and which is rendered inoperative after a single use without requiring a deliberate action by the user, the invention has certain critical portions formed of a material which degrades at least partially upon contact with the medication or solution injected on a first use through the syringe, thereby rendering the syringe unusable after the first use. In a primary embodiment, portions of the present syringe which mount a needle to the main body of the syringe are formed of a material which is at least partially soluble in the medication or solution used with the syringe or which absorbs the medication or solution, thereby preventing the needle from being retained in an operative position on the syringe.

REFERENCES:
patent: 4059109 (1977-11-01), Tischlinger
patent: 4781683 (1988-11-01), Wozniak et al.
patent: 4816021 (1989-03-01), Johnson

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