Catheter system for the isolation of a segment of blood vessel

A catheter system for isolating a segment of a tubular organ comprising:

• a guiding catheter having proximal and distal ends, said guiding catheter including;
• a major lumen;
• and,
• a first balloon that is selectively expandable attached to an outside of the guiding catheter at the distal end thereof;
• a guidewire which extends through the major lumen, said guidewire including;
• a hollow tube having proximal and distal ends;
• a second balloon that is selectively expandable attached to the hollow tube at the distal end thereof;
• and,
• a plug that is selectively joined with the proximal end of the hollow tube forming a seal therewith;
• and,
• a manifold that holds the proximal end of the hollow tube and the plug in alignment with one another when the plug is not joined with the proximal end of the hollow tube.

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.

A catheter system for use in accessing a tubular organ, said catheter system comprising:

• a guide catheter including:
• a major lumen:
• and,
• a first selectively expandable balloon attached at a first end of the guide catheter;
• a guidewire which extends through the major lumen such that a first end of the guidewire projects out the first end of the guide catheter, said guidewire including:
• a second selectively expandable balloon attached to the first end of the guidewire;
• and,
• a selectively detachable manifold for selectively inflating the second selectively expandable balloon, which manifold connects to a second end of the guidewire opposite that of the first end of the guidewire, wherein said second end of the guidewire projects out a second end of the guide catheter opposite that of the first end of the guide catheter.