Dilatation/centering catheter used for the treatment of stenosis or other constriction in a bodily passageway and method thereof
First Claim
1. A device for treating an occlusion or a constriction in a bodily conduit passageway having an inner surface in the body, comprising:
- a flexible, elongated catheter having a distal end and a proximal end, said catheter provided with a first hollow treatment lumen extending within said catheter and provided with an exterior surface;
a centering balloon attached to said exterior surface proximate to said distal end of said catheter, said centering balloon provided with at least two inflatable thin spokes which are dimensioned and configured to extend from said exterior surface of said catheter to the inner surface of the passageway when said centering balloon is inflated, said spokes encircling said distal end around a first particular point, said at least two inflatable thin spokes surrounded by a flexible membrane attached to said centering balloon; and
a source for inflating and deflating said centering balloon in communication with said centering balloon;
wherein when inflated, said centering balloon would allow a significant amount of perfusion of bodily fluids around said spokes.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus and method for treating an occlusion or constriction, such as a stenosis in a blood vessel or other conduit in the body, as well as an apparatus and method for treating a tumor or cancerous area occurring around a conduit or duct in the body. The apparatus includes a catheter provided with a centering balloon including a catheter centering balloon encircling a portion of the catheter near its distal end. This centering balloon contains a plurality of thin spoke-like members. A second dilatation balloon attached to the surface of the catheter is used to treat the stenosed area. A radioactive source of material is included for treating the stenosis or cancer.
130 Citations
43 Claims
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1. A device for treating an occlusion or a constriction in a bodily conduit passageway having an inner surface in the body, comprising:
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a flexible, elongated catheter having a distal end and a proximal end, said catheter provided with a first hollow treatment lumen extending within said catheter and provided with an exterior surface; a centering balloon attached to said exterior surface proximate to said distal end of said catheter, said centering balloon provided with at least two inflatable thin spokes which are dimensioned and configured to extend from said exterior surface of said catheter to the inner surface of the passageway when said centering balloon is inflated, said spokes encircling said distal end around a first particular point, said at least two inflatable thin spokes surrounded by a flexible membrane attached to said centering balloon; and a source for inflating and deflating said centering balloon in communication with said centering balloon; wherein when inflated, said centering balloon would allow a significant amount of perfusion of bodily fluids around said spokes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A device for treating an occlusion or a constriction in a bodily conduit passageway having an inner surface in the body, comprising:
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a flexible, elongated catheter having a distal end and a proximal end, said catheter provided with a first hollow treatment lumen extending within said catheter and provided with an exterior surface; a dilatation balloon attached to and encircling a portion of said distal end of said catheter; a centering balloon attached to a portion of said exterior surface of said distal end of said catheter; a first source for inflating and deflating said dilatation balloon for the purpose of treating the occlusion or constriction; and a second source for inflating and deflating said centering balloon for the purpose of centering said catheter within the passageway during treatment of the occlusion or constriction, said centering balloon when inflated allowing a significant amount of perfusion of bodily fluids around said centering balloon. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification