Bypass, pressurizing piston for chambers

Details Bypass, pressurizing piston for chambers Bypass, pressurizing piston for chambers

1992-06-01

1993-08-17

Green, Randall L.

Surgery

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

Treating material introduced into or removed from body...

604219, 604220, 604222, A61M 100, A61M 5315

Patent

active

052364208

ABSTRACT:
A resilient material pressurizing plunger for syringes or like containers in which the plunger construction is such that on the initial insertion into the syringe by a first inserting member, the plunger is distortable thus allowing the gas pressure generated by the plunger insertion to escape. The plunger is also capable of pressurizing the chamber when further insertion occurs by use of a second insertion member which prevents the distortion.

REFERENCES:
patent: 3147753 (1964-09-01), Nogier et al.
patent: 3678931 (1972-07-01), Cohen
patent: 4266557 (1981-05-01), Merry
patent: 4299238 (1981-11-01), Baidwan et al.

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