Catheter system for the isolation of a segment of blood vessel

Claim 1

A catheter for isolating a segment of a blood vessel comprising: a guiding catheter having a proximal end and a distal end, said guiding catheter including; a major lumen and a minor lumen arranged in parallel; a first expandable latex balloon attached circumferentially to an outside of the guiding catheter at the distal end thereof, wherein the first expandable latex balloon is connected via the minor lumen to a first inflation port arranged at the proximal end of the guiding catheter such that as fluid is injected through the first inflation port the first expandable latex balloon expands; and, a proximal assembly connected to the major lumen at the proximal end of the guiding catheter, the proximal assembly including; an aspiration port coupled to the major lumen for evacuating material from the major lumen; a guidewire which extends through the major lumen, said guidewire including; a hollow tube having a proximal end and a distal end; a solid segment of wire with a shapeable core attached to the distal end of the hollow tube forming a seal therewith; and, a plug which is selectively inserted into the proximal end of the hollow tube to form a seal therewith; a second expandable latex balloon circumferentially attached to the distal end of the hollow tube such that the second expandable latex balloon expands as fluid is received therein from a hole in the hollow tube; and, a detachable manifold which holds the proximal end of the hollow tube and the plug in alignment with one another when the plug is not inserted into the proximal end of the hollow tube, the detachable manifold including; a second inflation port through which fluid is injected into the hollow tube thereby expanding the second expandable latex balloon.

Claim 13

A method of isolating a segment of a tubular organ, said method comprising the steps of: (a) inserting a first end of a guide tube through a wall of the tubular organ; (b) positioning the first end of the guide tube at a first end of the segment being isolated; (c) passing a first end of a guidewire through the guide tube; (d) positioning the first end of the guidewire at a second end of the segment being isolated opposite the first end of the segment being isolated; (e) expanding an outer diameter of the first end of the guide tube until it forms a seal with the wall of the tubular organ; (f) applying pressure through a manifold which holds a second end of the guidewire opposite the first end of the guidewire to thereby expand an outer diameter of the first end of the guidewire until it forms a seal with the wall of the tubular organ; and, (g) detaching the manifold from the second end of the guidewire.

Claim 14

A method of isolating a segment of a tubular organ, said method comprising the steps of: (a) inserting a first end of a guide tube through a wall of the tubular organ; (b) positioning the first end of the guide tube at a first end of the segment being isolated; (c) passing a first end of a guidewire through the guide tube; (d) positioning the first end of the guidewire at a second end of the segment being isolated opposite the first end of the segment being isolated; (e) expanding an outer diameter of the first end of the guide tube until it forms a seal with the wall of the tubular organ; (f) applying pressure through a manifold which holds a second end of the guidewire opposite the first end of the guidewire to thereby expand an outer diameter of the first end of the guidewire until it forms a seal with the wall of the tubular organ; and, (g) detaching the manifold from the second end of the guidewire.