Safety, packaging, injection and disposal system for pre-filled

Details Safety, packaging, injection and disposal system for pre-filled Safety, packaging, injection and disposal system for pre-filled

1990-09-27

1991-11-26

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604232, 604192, 604205, 604220, 604225, A61M 5178

Patent

active

050679481

ABSTRACT:
A vial holding syringe (84) includes a barrel (6) having a bore (12), a sealable needle end (8) and an open plunger end (10). A plunger (16) is mounted within the bore and includes an elongated hollow stem (18), having an interior (36) sized to hold a conventional vial (4), and a piston (20). The stem includes a hollow piercing member (46) having a piercing end (48), opposite the membrane (42) covering the vial ,and an outer end (50), adjacent a one-way valve (70) to permit passage of the medication (80) within the vial from the vial, through the hollow piercing member and through the one-way valve into a variable volume region (67) of the bore between the needle end of the barrel and the piston. An opening (14) at the needle end of the barrel is initially sealed by a cap (66). To use, the plunger is pulled part way from the bore to create a partial vacuum within the variable volume region. During this process, the diaphragm of the vial is driven onto the piercing end of the piercing member. This causes the contents of the vial to be expelled from the vial and into the variable volume region under the influence of the partial vacuum formed within the variable volume region. The cap is then removed, a hollow needle (82) is mounted to the barrel and the injection is given.

REFERENCES:
patent: 2453590 (1946-11-01), Poux
patent: 2708438 (1951-11-01), Cohen
patent: 3563373 (1971-02-01), Paulson
patent: 3583263 (1971-06-01), Herigstad
patent: 4084606 (1978-04-01), Mittelson
patent: 4244378 (1981-01-01), Brignola
patent: 4303069 (1981-12-01), Cohen
patent: 4758231 (1988-07-01), Haber et al.
patent: 4861335 (1989-08-01), Reynolds
patent: 4934379 (1990-06-01), Marzolf et al.
patent: 4950253 (1990-08-01), Jacobs
patent: 4958622 (1990-09-01), Selenke

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