Cap and stopper

Details Cap and stopper Cap and stopper

1978-02-28

1980-05-13

Michell, Robert W.

Surgery

Respiratory method or device

Ozone or ion generation

215247, 215355, 220366, A61J 100

Patent

active

042023343

ABSTRACT:
A combination cap and stopper for sealing a substance within a syringe whether the needle remains on the syringe or is removed, consisting of a rubber or plastic device having a generally cylindrical portion and a portion having a generally frustoconical shape. The cylindrical portion has a frustoconical axial bore therein with an axially extending groove formed in the frustoconical wall and at the bottom end of the bore a plug-like cylindrical protrusion. The portion of generally frustoconical shape being solid and having a raised target on its base so as to aid in proper insertion of a cannula.

REFERENCES:
patent: 1803713 (1931-05-01), Langsner
patent: 2158593 (1939-05-01), Scrimgeour
patent: 2320323 (1943-05-01), Anunberg
patent: 2638897 (1953-05-01), Poitras
patent: 2849739 (1958-09-01), Dresden
patent: 3055361 (1962-09-01), Ballard
patent: 3118557 (1964-01-01), Bogikes
patent: 4046145 (1977-09-01), Choksi

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