Ultrasonic angioplasty transmission wire
First Claim
1. An ultrasonic angioplasty catheter device comprising an elongate flexible catheter having a proximal end, a distal end, and at least one lumen extending longitudinally therethrough, the device comprising:
- an ultrasound transmission member extending through said lumen in a fixed position within the catheter lumen and having a distal end with a head for applying ultrasonic energy to an occlusive lesion, and a proximal end configured to be connected to an ultrasound generating device, the distal head being positioned on the distal end of said ultrasound transmission member such that the distal head extends beyond the distal end of the catheter;
wherein the ultrasound transmission member comprises an inner member of a first ultrasound transmitting material and a first coaxial shell bonded to the inner member and formed of a second ultrasound transmitting material different from the first ultrasound transmitting material.
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Accused Products
Abstract
The ultrasonic angioplasty transmission wire for use in an ultrasonic angioplasty device comprises an inner layer of a first ultrasound transmitting material, and at least one outer coaxial shell or tube of a second ultrasound transmitting material different from the first ultrasound transmitting material. The first inner layer and one or more of the outer coaxial shells or tubes can be formed of ultrasound transmitting metal compositions such as stainless steel, nickel-titanium, or aluminum, or other similar suitable ultrasound transmitting metals. In one embodiment, the first inner layer is formed of a nickel-titanium alloy, and at least one outer coaxial shell or tube is formed of stainless steel. In another embodiment, the first inner layer is formed of nickel-titanium alloy, a first outer coaxial shell or tube is formed of stainless steel, and a second outer coaxial shell or tube is formed of the nickel-titanium alloy.
175 Citations
11 Claims
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1. An ultrasonic angioplasty catheter device comprising an elongate flexible catheter having a proximal end, a distal end, and at least one lumen extending longitudinally therethrough, the device comprising:
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an ultrasound transmission member extending through said lumen in a fixed position within the catheter lumen and having a distal end with a head for applying ultrasonic energy to an occlusive lesion, and a proximal end configured to be connected to an ultrasound generating device, the distal head being positioned on the distal end of said ultrasound transmission member such that the distal head extends beyond the distal end of the catheter;
wherein the ultrasound transmission member comprises an inner member of a first ultrasound transmitting material and a first coaxial shell bonded to the inner member and formed of a second ultrasound transmitting material different from the first ultrasound transmitting material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification