Syringe with safety sheath

Details Syringe with safety sheath Syringe with safety sheath

1986-04-03

1987-07-21

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

A61M 532

Patent

active

046815678

ABSTRACT:
An improved syringe of the type comprising a barrel having a needle extending from the lower end, the syringe further comprising a knob extending outwardly from the barrel near the lower end, and a sheath slideably mounted on the barrel and slideable between a retracted position and an extended position. The sheath has a slot for receiving the knob, the slot having tabs for releasably retaining the sheath in its retracted position releasable upon downward pressure applied to the sheath, and tabs for lockingly engaging the knob to lock the sheath in the extended position.

REFERENCES:
patent: 2571653 (1951-10-01), Bastien
patent: 3487834 (1970-01-01), Smith, Jr. et al.
patent: 3780734 (1973-12-01), Wulff
patent: 3890971 (1975-06-01), Leeson et al.
patent: 4373526 (1983-02-01), Kling
patent: 4425120 (1984-01-01), Sampson et al.
patent: 4631057 (1986-12-01), Mitchell

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