Disposable conical hold for a medicinal cartridge with reusable

Details Disposable conical hold for a medicinal cartridge with reusable Disposable conical hold for a medicinal cartridge with reusable

1995-01-09

1996-09-24

Green, Randall L.

Surgery

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

Treating material introduced into or removed from body...

604198, 604232, A61M 532

Patent

active

055586481

ABSTRACT:
A disposable hollow cylindroid in the form of a cone which wedge impacts an inserted piston-activated medicinal cartridge such that, employing one or two hands, the user can safely aspirate tissue fluid from a patient and inject contained fluid medications via a hollow needle. The leading end of this disposable hollow cylindroid comprises means for stabilizing the hollow needle serving the inserted cartridge. The trailing end is fitted with a separate reusable plunger whose leading end reversibly attaches to the trailing end of the cartridge piston. In operation, the user inserts the cartridge, uses a leading cylindrical cap on the plunger to wedge-impact the cartridge into the cone, attaches the plunger, screws the leading end of the plunger onto the trailing end of the cartridge piston, removes a sheathing cover from the hollow needle, aspirates into or injects fluid from the inserted cartridge, unscrews and extracts the plunger and, finally, discards the hollow cylindroid containing the cartridge and hollow needle into a safe container. An auxiliary shielding system is described to sterile-protect the cartridge before insertion and exposed sharp parts of the hollow needle after use in a patient.

REFERENCES:
patent: 2453590 (1948-11-01), Poux
patent: 4518385 (1985-05-01), Lindmayer et al.
patent: 4583978 (1986-04-01), Porat et al.
patent: 4767413 (1988-08-01), Haber et al.
patent: 4969877 (1990-11-01), Kornberg
patent: 4990141 (1991-02-01), Byrne et al.
patent: 5024616 (1991-06-01), Ogle, III
patent: 5135514 (1992-08-01), Kimber
patent: 5176657 (1993-01-01), Shields
patent: 5304138 (1994-04-01), Mercado
patent: 5306277 (1994-04-01), Bryant et al.

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