Device for the controlled infusion of medications

Details Device for the controlled infusion of medications Device for the controlled infusion of medications

1982-09-07

1986-02-04

Surgery

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

Treating material introduced into or removed from body...

604224, A61M 530

Patent

active

045683352

ABSTRACT:
A device comprising a container and a threaded rotatable plunger mechanism including means for controllably advancing the plunger through the container can administer a precise dose of a drug-containing fluid subcutaneously at regular intervals. The means for controllably advancing the plunger comprises a drive tube concentrically mounted about a threaded rod operating within the container, the drive tube having ramp means at the upper end thereof, a ratchet head including a resilient member in operative communication with the upper end of the drive tube and a rotatable knob adjacent the ratchet head whereby rotation of the knob in one direction rotates the drive tube and the threaded rod to deliver the fluid through an outlet of the container.

REFERENCES:
patent: 951160 (1910-03-01), Wainwright
patent: 2250467 (1941-07-01), Cole
patent: 2660342 (1953-11-01), Ruf
patent: 3734079 (1973-05-01), Weber
patent: 4189065 (1980-02-01), Herold
patent: 4312343 (1982-01-01), LeVeen et al.
patent: 4367739 (1983-01-01), LeVeen et al.
patent: 4498904 (1985-02-01), Turner et al.

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