Method and apparatus for removing and/or enlarging constricted a

Details Method and apparatus for removing and/or enlarging constricted a Method and apparatus for removing and/or enlarging constricted a

1982-11-24

1986-03-04

Truluck, Dalton L.

Surgery

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

Treating material introduced into or removed from body...

604101, 1283481, A61M 2500

Patent

active

045739668

ABSTRACT:
An apparatus and method for comminuting and/or eliminating constricted areas in vessels of all types whereby fissures and cracks in the vessel walls during the treatment of stenosis in blood vessels and also coronary obstruction are to be avoided. A treatment catheter is used which is equipped with two inflatable balloons which seal off a constriction place in a vessel on both sides thereof whereby the degree of expansion of both balloons is externally regulatable. An inlet member for the supply of means dissolving the material of the constriction area or comminuting the same into smaller particles and an outlet member for the removal of the dissolved or comminuted material of the constriction place are provided in the walls of the treatment catheter within the area delimited by the two balloons. These inlet and outlet members are in communication with a channel accessible from the outside.

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Dotter et al, "Selective Clot Lysis with Low-Dose Streptokinase", Radiology, 111:31-37, Apr. 74.

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