Limacon geometry balloon angioplasty catheter systems
First Claim
Patent Images
1. An angioplasty catheter, comprising:
- a catheter shaft having a proximal end and a distal end;
at least two independently inflatable and independently deflatable angioplasty balloons at the distal end of said catheter, each said balloon having a balloon wall and having a length and a different maximum inflated diameter, wherein said balloons and said distal end of said catheter shaft comprise a single, integral monolithic piece of polymer material and wherein said balloons are eccentrically positioned with respect to each other, wherein said balloons comprise a first balloon and a second balloon located on opposite sides of said catheter shaft, wherein said first balloon and said second balloon are only in part axially coextensive.
0 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is an angioplasty catheter comprising a catheter shaft having a distal end and at least one, and preferably two, angioplasty balloons on the distal end of the catheter shaft, wherein the distal end of the catheter and the balloons are formed from a single monolithic piece of polymer material. The distal end of the catheter may also include additional balloons formed from the same piece of polymer material. Each of the balloons is separately inflatable and deflatable by virtue of a separate lumen running through the catheter shaft to the balloon.
-
Citations
16 Claims
-
1. An angioplasty catheter, comprising:
-
a catheter shaft having a proximal end and a distal end; at least two independently inflatable and independently deflatable angioplasty balloons at the distal end of said catheter, each said balloon having a balloon wall and having a length and a different maximum inflated diameter, wherein said balloons and said distal end of said catheter shaft comprise a single, integral monolithic piece of polymer material and wherein said balloons are eccentrically positioned with respect to each other, wherein said balloons comprise a first balloon and a second balloon located on opposite sides of said catheter shaft, wherein said first balloon and said second balloon are only in part axially coextensive. - View Dependent Claims (2, 3)
-
-
4. An angioplasty balloon catheter, comprising:
-
a catheter shaft having a proximal end, a longitudinal axis, and a distal end; first and second angioplasty balloons on the distal end of said catheter shaft, each said balloon having a longitudinal axis, wherein said balloons have different predetermined maximum inflated diameters and are joined to said catheter shaft along the length of said balloons so that catheter shaft forms a part of the wall of said balloons, wherein said balloons are only in part coextensive along said catheter shaft. - View Dependent Claims (5)
-
-
6. An angioplasty catheter, comprising:
-
a catheter shaft having a proximal end and a distal end with at least two lumens extending therethrough; and first and second angiplasty balloons on the distal end of said catheter shaft, wherein said balloons and said distal end of said catheter shaft are formed from a single monolithic piece of polymer material by sealing shut two of said lumens and heating the distal end of said catheter shaft, then internally pressurizing said sealed lumen to expand at least a portion of said distal end of said catheter shaft into said balloons, wherein said balloons are eccentric with respect to said catheter shaft and one of said balloons extends only in part along the same length of said catheter shaft as another of said balloons and has a different maximum inflated diameter than said other balloon. - View Dependent Claims (7, 8, 9)
-
-
10. An angioplasty catheter, comprising:
-
a catheter shaft having an axis, a distal end, and a proximal end; a first independently inflatable angioplasty balloon on a first side of the distal end of said shaft; a second independently inflatable angioplasty balloon on a second side of the distal end of said shaft, wherein said first balloon and said second balloon are only in part axially coextensive on said catheter shaft. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
Specification