Importance

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Abstract

A catheter for isolating a segment of blood vessel has a guiding catheter (10) with proximal and distal ends. The guiding catheter (10) has major and minor lumens (12, 14). A first balloon (16) is attached to the guiding catheter (10) at the distal end thereof. The first balloon (16) is connected via the minor lumen (14) to a first inflation port (18) such that as fluid is injected into the first inflation port (18) the first balloon (16) expands. A proximal assembly (20) connected to the major lumen (12) at the proximal end of the guiding catheter (10) has an aspiration port (24) for evacuating the major lumen (12). A guidewire (30) extending through the major lumen includes a hollow tube (32) having proximal and distal ends. A wire (34) with a shapeable core is attached to the distal end of the hollow tube (32) forming a seal therewith. A plug (52) is selectively inserted into the proximal end of the hollow tube (32) forming a seal therewith. A second balloon (36) is attached to the distal end of the hollow tube (32) such that the second balloon (36) is expanded as fluid is received therein from a hole (38) in the hollow tube (32). A detachable manifold (40) holds the proximal end of the hollow tube (32) and the plug (52) in alignment with one another. The manifold (40) has a second inflation port (46) through which fluid is injected into the hollow tube (32) thereby expanding the second balloon (36).

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First Claim