ULTRASOUND CATHETER AND METHODS FOR MAKING AND USING SAME
First Claim
1. An ultrasound catheter for disrupting occlusions in blood vessels, the ultrasound catheter comprising:
- an elongate flexible catheter body comprising a proximal end, a distal end, a lumens and a pre-formed bend having an angle;
an ultrasound transmission member extending longitudinally through the lumen of the catheter body, the ultrasound transmission member comprising a proximal end connectable to a separate ultrasound generating device, a distal end disposed adjacent the distal end of the catheter body, and a bend having an angle; and
a distal head coupled with the distal end of the ultrasound transmission member;
wherein the angle of the preformed bend of the catheter body is greater than the angle of the bend of the ultrasound transmission member. An ultrasound catheter as in claim 1, further comprising a sheath disposed over at least a portion of the distal end of the catheter body for maintaining the bend in the catheter body.
1 Assignment
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Accused Products
Abstract
Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, ultrasound catheters include an elongate flexible catheter body with one or more lumens, an ultrasound transmission member extending longitudinally through the catheter body lumen and, in some embodiments, a guidewire tube extending through the lumen. A distal head for disrupting occlusions is coupled with the distal end of the ultrasound transmission member and is positioned adjacent the distal end of the catheter body. Some embodiments include improved features such as a bend in the catheter body for enhancing positioning and/or advancement of the catheter.
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Citations
16 Claims
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1. An ultrasound catheter for disrupting occlusions in blood vessels, the ultrasound catheter comprising:
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an elongate flexible catheter body comprising a proximal end, a distal end, a lumens and a pre-formed bend having an angle; an ultrasound transmission member extending longitudinally through the lumen of the catheter body, the ultrasound transmission member comprising a proximal end connectable to a separate ultrasound generating device, a distal end disposed adjacent the distal end of the catheter body, and a bend having an angle; and a distal head coupled with the distal end of the ultrasound transmission member; wherein the angle of the preformed bend of the catheter body is greater than the angle of the bend of the ultrasound transmission member. An ultrasound catheter as in claim 1, further comprising a sheath disposed over at least a portion of the distal end of the catheter body for maintaining the bend in the catheter body. - View Dependent Claims (2, 3, 4, 5)
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6. An ultrasound catheter for disrupting occlusions in blood vessels, the ultrasound catheter comprising:
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an elongate flexible catheter body having a proximal end, a distal end, and a lumen extending longitudinally through the body; an ultrasound transmission member extending longitudinally through the lumen of the catheter body, the ultrasound transmission member having a proximal end connectable to a separate ultrasound generating device and a distal end disposed adjacent the distal end of the catheter body; a distal head coupled with the distal end of the ultrasound transmission member; and an actuator for switching between transmitting a first type of ultrasound energy to the ultrasound transmission member and transmitting a second type of ultrasound energy to the ultrasound transmission member. - View Dependent Claims (7)
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8. An ultrasound system for disrupting occlusions in blood vessels, the system comprising:
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an ultrasound catheter comprising; an elongate flexible catheter body having a proximal end, a distal end, at least one lumen, and a pre-formed bend; an ultrasound transmission member extending longitudinally through the lumen of the catheter body, the ultrasound transmission member having a proximal end, a distal end, and a bend; and a distal head coupled with the distal end of the ultrasound transmission member; and an ultrasound generating device coupled with the proximal end of the ultrasound transmission member via an ultrasound transducer and a sonic connector. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification