Shockwave catheter
First Claim
Patent Images
1. A catheter comprising:
- an elongated body;
an inflatable balloon carried by the elongated body, the balloon having an inner surface and an outer surface;
at least one shock wave source within the inflatable balloon wherein the shock wave source is biased towards the inner surface of the balloon when the balloon is inflated; and
a follower arrangement, said follower arrangement including a stand-off that maintains the at least one shock wave source a substantially fixed distance from the inner surface of the balloon when the balloon is inflated.
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Abstract
A catheter, for use, for example, in valvuloplasty, includes an elongated body and an inflatable balloon carried by the elongated body. The balloon has an inner surface and an outer surface. The catheter further includes at least one shock wave source within the inflatable balloon and a follower arrangement that maintains the at least one shock wave source a substantially fixed distance from the inner surface of the balloon.
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Citations
20 Claims
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1. A catheter comprising:
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an elongated body; an inflatable balloon carried by the elongated body, the balloon having an inner surface and an outer surface; at least one shock wave source within the inflatable balloon wherein the shock wave source is biased towards the inner surface of the balloon when the balloon is inflated; and a follower arrangement, said follower arrangement including a stand-off that maintains the at least one shock wave source a substantially fixed distance from the inner surface of the balloon when the balloon is inflated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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providing a catheter including an elongated body, an inflatable balloon carried by the elongated body, the balloon having an inner surface and an outer surface, and at least one shock wave source within the inflatable balloon; inserting the catheter into a vein or artery of a patient and placing the balloon adjacent to an anatomical structure to be treated; inflating the balloon with a liquid; biasing the shock wave source towards the inner surface of the balloon; causing the shock wave source to provide shock waves within the balloon that propagate through the liquid to treat the anatomical structure; maintaining the at least one shock wave source a substantially fixed distance from the inner surface of the balloon while the shock waves are provided by the at least one shock wave source. - View Dependent Claims (15, 16)
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17. A catheter comprising:
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an elongated body; an inflatable balloon carried by the elongated body, the balloon having an inner surface and an outer surface; an elongated lead carrying at least one shock wave source located within the inflatable balloon, wherein the lead is biased towards the inner surface of the balloon when the balloon is inflated; and a stand-off attached to the lead and configured to space the shock wave source away from the inner surface of the balloon when the balloon is inflated. - View Dependent Claims (18, 19, 20)
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Specification