Ultrasound catheter devices and methods
First Claim
1. An ultrasound catheter system for disrupting occlusions in blood vessels, the system comprising:
- an ultrasound catheter device, comprising;
an elongate flexible catheter body having a proximal end, a distal end and at least one lumen;
an ultrasound transmission member extending longitudinally through the lumen of the catheter body and having a proximal end and a distal end;
a distal head coupled with the distal end of the ultrasound transmission member and disposed adjacent the distal end of the catheter body;
a guidewire tube having a proximal end, a distal end, at least one lumen, and at least one aperture, the at least one aperture being disposed between the proximal end and the distal end of the guidewire tube and within the catheter body;
a sonic connector coupled with the proximal end of the ultrasound transmission member for coupling the ultrasound transmission member with an ultrasound transducer device;
a proximal housing coupled with the proximal end of the catheter body and housing the sonic connector and a proximal portion of the ultrasound transmission member, wherein the housing includes at least one fluid inlet for allowing passage of one or more heat dissipating fluids into an inner cavity of the housing, and wherein the lumen of the catheter body is in fluid communication with the lumen of the guidewire tube such that at least a portion of the heat dissipating fluid(s) introduced into the cavity passes through and out of the distal end of the guidewire lumen;
an ultrasound generator removably coupled with the ultrasound catheter device; and
a fluid cooling device removably coupled with the ultrasound catheter device for cooling the heat dissipating fluid(s).
1 Assignment
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Accused Products
Abstract
Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, an ultrasound catheter device includes an elongate flexible catheter body with one or more lumens, an ultrasound transmission member extending longitudinally through the catheter body lumen and a distal head coupled with the transmission member and positioned adjacent the distal end of the catheter body for disrupting occlusions. A proximal housing of the catheter device may include one or more features for dissipating heat from the ultrasound transmission wire, such as a fluid inlet aperture for passage of fluid, use of heat conductive materials in the proximal housing, surface features to increase the housing'"'"'s surface area, heat conductive members disposed adjacent the transmission member and the like. Various irrigation fluids may be used, such as cooled, oxygen supersaturated or lubricious fluids.
299 Citations
26 Claims
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1. An ultrasound catheter system for disrupting occlusions in blood vessels, the system comprising:
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an ultrasound catheter device, comprising; an elongate flexible catheter body having a proximal end, a distal end and at least one lumen; an ultrasound transmission member extending longitudinally through the lumen of the catheter body and having a proximal end and a distal end; a distal head coupled with the distal end of the ultrasound transmission member and disposed adjacent the distal end of the catheter body; a guidewire tube having a proximal end, a distal end, at least one lumen, and at least one aperture, the at least one aperture being disposed between the proximal end and the distal end of the guidewire tube and within the catheter body; a sonic connector coupled with the proximal end of the ultrasound transmission member for coupling the ultrasound transmission member with an ultrasound transducer device; a proximal housing coupled with the proximal end of the catheter body and housing the sonic connector and a proximal portion of the ultrasound transmission member, wherein the housing includes at least one fluid inlet for allowing passage of one or more heat dissipating fluids into an inner cavity of the housing, and wherein the lumen of the catheter body is in fluid communication with the lumen of the guidewire tube such that at least a portion of the heat dissipating fluid(s) introduced into the cavity passes through and out of the distal end of the guidewire lumen; an ultrasound generator removably coupled with the ultrasound catheter device; and a fluid cooling device removably coupled with the ultrasound catheter device for cooling the heat dissipating fluid(s). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An ultrasound catheter comprising:
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an elongate body having at least one lumen; an ultrasound transmission member extending longitudinally through the at least one lumen of the body; and a guidewire tube having a proximal end, a distal end, at least one lumen, and at least one aperture, the at least one aperture being disposed between the proximal end and the distal end of the guidewire tube and within the body so that the at least one lumen of the body is in fluid communication with the at least one lumen of the guidewire tube. - View Dependent Claims (22, 23, 24, 25)
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26. An ultrasound catheter comprising:
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an elongate flexible catheter body having a proximal end, a distal end, and at least one lumen; an ultrasound transmission member extending longitudinally through the lumen of the catheter body; a distal head coupled with the ultrasound transmission member and disposed adjacent to the distal end of the catheter body; a guidewire tube having a proximal end, a distal end, at least one lumen, and at least one aperture, the at least one aperture being disposed between the proximal end and the distal end of the guidewire tube and within the catheter body; and a proximal housing coupled with the catheter body and housing a portion of the ultrasound transmission member, the housing having at least one fluid inlet in fluid communication with the at least one lumen of the catheter body, wherein the at least one lumen of the catheter body is in fluid communication with the at least one lumen of the guidewire tube via the at least one aperture.
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Specification