Lithotriptor device for trapping and destroying concretions

Details Lithotriptor device for trapping and destroying concretions Lithotriptor device for trapping and destroying concretions

1989-09-29

1990-05-22

Smith, Ruth S.

Surgery

Instruments

Means for concretion removal

A61B 1722

Patent

active

049274279

ABSTRACT:
A device is provided for removal of kidney stones. The device includes a stone trapping device on the end of a flexible and axially movable wire. The wire moves through a tubing. An electrode is provided in the form of a cylinder at the outer end of the tubing. The stone is drawn into close proximity to the electrode, and electrical sparks jump between the wire and the electrode to generate a shock wave in close proximity to the stone. Stones which are small as they occur or which are reduced in size by shock wave treatment then may be withdrawn from the body in the stone trapping device.

REFERENCES:
patent: 4203429 (1980-05-01), Vasilevsky et al.
patent: 4557255 (1985-12-01), Goodman

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