Bipartite injector device

Details Bipartite injector device Bipartite injector device

1989-11-20

1991-05-28

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

A61M 524

Patent

active

050190520

ABSTRACT:
Bipartite injector device formed of an outer shell having a front closed end with an external spout and an internal seat communicating by a bore, and a rear open end to receive the stoppered end of a medicament vial, and an inner sleeve having a front end for cantilever connection to the shell closed end, and a rear free end with a socket connectable to the vial stopper, plus a hollow needle having a front collar flange mountable via the sleeve to communicate with the bore at the seat and to dispose its rear pointed end in the socket to penetrate the stopper to connect the vial with the bore and spout. A circular rim on the sleeve exterior is compressed through a circular ring to reach a circular groove on the shell interior for snap fit cantilever locking therewith to provide a fluid tight coaxial and concentric arrangement of parts for flow between the vial and spout.

REFERENCES:
patent: 2408323 (1946-09-01), Lockhart
patent: 2562129 (1951-07-01), Scherer et al.
patent: 3523531 (1970-08-01), Burke
patent: 3563373 (1971-02-01), Paulson
patent: 3570486 (1971-03-01), Engelsher et al.
patent: 3768474 (1973-10-01), Burke et al.
patent: 3941131 (1976-03-01), Ogle
patent: 4136695 (1979-01-01), Dafoe
patent: 4411163 (1983-10-01), White
patent: 4713062 (1987-12-01), Stevanato
patent: 4861335 (1989-08-01), Reynolds
patent: 4886495 (1989-12-01), Reynolds

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