Infusion method and means

Details Infusion method and means Infusion method and means

1988-02-23

1989-07-25

Truluck, Dalton L.

Surgery

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

Treating material introduced into or removed from body...

222100, A61M 500

Patent

active

048509710

ABSTRACT:
This invention is an infusion pump utilizing a linear roller driven by a one or more constant force springs in combination with changeable flow regulating needles to provide a constant flow, gravity independent device. The spring constant is chosen so that infusion substantially decreases should the infusion needle become dislodged from the vein and come to rest in the surrounding tissue. Also, there is a means for introduction of an anticoagulant to maintain vein access if a delay is encountered in replacement of the infusion bag.

REFERENCES:
patent: 2690179 (1954-09-01), Fox
patent: 3469578 (1969-09-01), Bierman
patent: 3640277 (1972-02-01), Adelberg
patent: 3647117 (1972-03-01), Hargest
patent: 3670926 (1972-06-01), Hill
patent: 4337769 (1982-07-01), Olson
patent: 4557728 (1985-12-01), Sealfon et al.
patent: 4626243 (1986-12-01), Singh et al.
patent: 4765512 (1988-08-01), Bull

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