Liquid infusion device

Details Liquid infusion device Liquid infusion device

1988-06-01

1990-03-20

Truluck, Dalton L.

Surgery

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

Treating material introduced into or removed from body...

604214, 222212, 2223865, A61M 500

Patent

active

049097903

ABSTRACT:
A liquid infusion device comprises a bladder assembly and a flow-regulating portion. The bladder assembly comprises a tubular outer shaft, an inner shaft slidably received within the outer shaft and a bladder covering the outer and inner shafts. The bladder can inflate in both its radial and axial directions whereby reducing the residual amounts of a liquid drug in the bladder on dispensation of the liquid drug. The flow-regulating portion comprises a pipe having at least one small hole or a pipe having a very small diameter, so that the accurate regulation of the liquid drug can be performed.

REFERENCES:
patent: 515288 (1894-02-01), Harsin
patent: 1098222 (1914-05-01), Brasefield
patent: 3469578 (1969-09-01), Bierman
patent: 3796356 (1974-03-01), Venus
patent: 3961725 (1976-06-01), Clark
patent: 4031891 (1977-06-01), Jess
patent: 4121585 (1978-10-01), Becker, Jr.
patent: 4140117 (1979-02-01), Buckles et al.
patent: 4386929 (1983-06-01), Peery et al.
patent: 4769008 (1988-09-01), Hessel

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