Multi-lobe perfusion balloon
First Claim
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1. A balloon catheter, comprising:
- an axially elongate wire suitable for insertion into a blood vessel, said wire being hollow such that said wire defines a lumen extending axially therethrough, said wire having a proximal end and a distal end;
a plurality of inflation balloons directly attached to said wire, said;
at least one influent port extending through a wall of the wire proximal of said plurality of balloons, said influent port in fluid communication with said lumen; and
at least one effluent port extending through a wall of wire distal of said plurality of balloons, said effluent port in fluid communication with said lumen.
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Abstract
A low profile wire perfusion catheter is disclosed for use in percutaneous transluminal coronary angioplasty. The catheter includes a wire configured to be inserted into a blood vessel. The wire is hollow and defines an axial lumen therein. An inflation balloon is attached directly to the wire and is configured to expand radially outward in response to inflation thereof. Inflow and outflow perfusion ports extend through the wire and communicate with the lumen to allow perfusion of blood across the balloon when the balloon is inflated within a blood vessel. Because the balloon is attached directly to the wire, the catheter has an advantageously low cross-sectional area.
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Citations
23 Claims
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1. A balloon catheter, comprising:
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an axially elongate wire suitable for insertion into a blood vessel, said wire being hollow such that said wire defines a lumen extending axially therethrough, said wire having a proximal end and a distal end; a plurality of inflation balloons directly attached to said wire, said; at least one influent port extending through a wall of the wire proximal of said plurality of balloons, said influent port in fluid communication with said lumen; and at least one effluent port extending through a wall of wire distal of said plurality of balloons, said effluent port in fluid communication with said lumen. - View Dependent Claims (2, 3, 4, 5)
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6. A multi-lobed balloon catheter, comprising:
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a first axially elongate wire suitable for insertion into a blood vessel, said wire having a main lumen extending axially therethrough; an inflation balloon directly attached to said wire, said balloon comprising a first lobe and a second lobe; at least one influent port extending through the wire on a first side of the balloon, said influent port in fluid communication with said main lumen; and at least one effluent port extending through said wire on a second side of said balloon, said effluent port in fluid communication with said main lumen. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A balloon catheter, comprising:
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an axially elongate wire suitable for insertion into a blood vessel, said wire being hollow so as to define a lumen extending axially therethrough; a multi-lobe inflation balloon directly attached to said wire, said balloon having a proximal end and a distal end, the proximal end of said inflation balloon integrally forming an elongate catheter shaft contiguous with said wire; and means for perfusing blood through said lumen from a location proximal to said balloon to a location distal of said balloon. - View Dependent Claims (17, 18)
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19. A balloon catheter, comprising:
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an axially elongate catheter shaft forming a main catheter lumen; a guidewire suitable for insertion into a body lumen, said wire having a proximal end and a distal end; a plurality of inflation balloons mounted to said catheter shaft; at least one influent port extending through a wall of the catheter shaft proximal of said plurality of balloons, said influent port in fluid communication with said main catheter lumen; and at least one effluent port extending through a wall of the catheter shaft distal of said plurality of balloons, said effluent port in fluid communication with said main catheter lumen. - View Dependent Claims (20, 21, 22, 23)
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Specification