METHOD AND APPARATUS FOR TREATMENT OF INTRACRANIAL HEMORRHAGES
First Claim
Patent Images
1. An ultrasound catheter for treatment of a blood clot resulting from an intracranial hemorrhage comprising:
- an elongate tubular body having a distal portion and a proximal portion;
a plurality of ultrasound radiating members positioned within the tubular body;
a first fluid delivery lumen formed within the elongate tubular body, wherein the first fluid delivery lumen includes a first fluid delivery port located on a first region of the distal portion of the elongate tubular body and configured to allow a fluid to flow from within the first fluid delivery lumen to the blood clot; and
a first fluid evacuation lumen formed within the elongate tubular body, wherein the first fluid evacuation lumen includes a first fluid evacuation port located on a second region of the distal portion of the elongate tubular body and configured to allow a fluid to flow into the first fluid evacuation lumen.
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Accused Products
Abstract
An ultrasound catheter with fluid delivery lumens, fluid evacuation lumens and a light source is used for the treatment of intracerebral hemorrhages. After the catheter is inserted into a blood clot in the brain, a lytic drug can be delivered to the blood clot via the fluid delivery lumens while applying ultrasonic energy to the treatment site. As the blood clot is dissolved, the liquefied blood clot can be removed by evacuation through the fluid evacuation lumens.
224 Citations
20 Claims
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1. An ultrasound catheter for treatment of a blood clot resulting from an intracranial hemorrhage comprising:
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an elongate tubular body having a distal portion and a proximal portion; a plurality of ultrasound radiating members positioned within the tubular body; a first fluid delivery lumen formed within the elongate tubular body, wherein the first fluid delivery lumen includes a first fluid delivery port located on a first region of the distal portion of the elongate tubular body and configured to allow a fluid to flow from within the first fluid delivery lumen to the blood clot; and a first fluid evacuation lumen formed within the elongate tubular body, wherein the first fluid evacuation lumen includes a first fluid evacuation port located on a second region of the distal portion of the elongate tubular body and configured to allow a fluid to flow into the first fluid evacuation lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for treating a blood clot resulting from an intracranial hemorrhage in a patient comprising:
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providing a catheter comprising an elongate tubular body having a distal portion and a proximal portion, the elongate tubular body comprising at least one ultrasound radiating member located in the distal portion, a first fluid delivery lumen extending from the proximal portion to the distal portion and a first fluid evacuation lumen extending from the proximal portion to the distal portion, wherein the first fluid delivery lumen includes a first fluid delivery port located on a first region of the distal portion of the elongate tubular body and configured to allow a fluid to flow from within the first fluid delivery lumen to the blood clot, and wherein the first fluid evacuation lumen includes a first fluid evacuation port located on a second region of the distal portion of the elongate tubular body and configured to allow a fluid to flow into the first fluid evacuation lumen, the first evacuation port comprising an item selected from the group consisting of a screen, mesh and filter; positioning at least a portion of the distal portion of the elongate tubular body into the blood clot; activating the ultrasound radiating member; monitoring the intracranial pressure of the patient; delivering a first fluid through the first fluid delivery lumen and first fluid delivery port to the blood clot; and evacuating a second fluid through the first evacuation lumen and first evacuation port. - View Dependent Claims (18, 19, 20)
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Specification