Device for removing objects from tubular body passages

Details Device for removing objects from tubular body passages Device for removing objects from tubular body passages

1985-02-25

1986-07-01

Thaler, Michael H.

Surgery

Truss

Pad

128303R, 128346, 128356, A61B 1750

Patent

active

045973890

ABSTRACT:
A device and a method for removing objects from tubular body passages such as arteries, urinary passages, respiratory passages, alimentary canal passages, or other body passages. An elongated element has a ring at its distal end which surrounds the object. On the inside of the ring is a balloon which is constrained by the ring to inflate only inwardly, such that upon the inward inflation it engages and grasps the object to be removed. The device is then withdrawn, whereby the ring and the inflated balloon carry the object with it out of the body passage. Fluid such as air is introduced into and removed from the balloon via a line which runs from the balloon back along the elongated element to the proximal end of the device. A dye line may also be provided, running from the distal end of the device to the proximal end for introducing a dye into the body passage ahead of the ring for diagnostic purposes.

REFERENCES:
patent: 2944552 (1960-07-01), Cannon
patent: 3538917 (1970-11-01), Selker
patent: 3635223 (1972-01-01), Klieman
patent: 3750194 (1973-08-01), Summers
patent: 3831995 (1974-08-01), Duncan
patent: 4256094 (1981-03-01), Kapp et al.

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