Pressure sensitive needle guard

Details Pressure sensitive needle guard Pressure sensitive needle guard

1989-09-26

1991-01-22

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604263, 604192, A61M 532

Patent

active

049868195

ABSTRACT:
The invention features a needle guard for a hypodermic syringe that will prevent repuncture by a used needle. The needle guard has a flexible membrane that expands when pressure actuated to cover and protect the injecting tip of the syringe needle. The membrane is characterized by a small, unobtrusive profile in the inactivated state.

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patent: 4795432 (1989-01-01), Karczmer
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patent: 4850977 (1989-07-01), Bayless
patent: 4863434 (1989-09-01), Bayless
patent: 4863435 (1989-09-01), Sturman et al.
patent: 4892521 (1990-01-01), Laico et al.
patent: 4894055 (1990-01-01), Sudnak
patent: 4911706 (1990-03-01), Levitt
patent: 4917672 (1990-04-01), Teindrop et al.

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