Thrombectomy apparatus and method
First Claim
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1. A method of removing thrombi, the method comprising the steps of:
- providing a thrombectomy apparatus comprising an elongate shaft defining a high pressure lumen and a low pressure lumen, the high pressure lumen terminating near a distal end of the low pressure lumen, and an expandable capture basket disposed generally adjacent the distal end of the low pressure lumen;
wherein the expandable capture basket includes an actuatable frame and a blood permeable membrane disposed over at least a portion of the frame;
advancing the thrombectomy apparatus to a desired location within a patient'"'"'s vasculature;
expanding the expandable capture basket;
capturing thrombi within the expandable capture basket;
providing a source of pressurized fluid in fluid communication with the high pressure lumen;
breaking apart the captured thrombi using the pressurized fluid; and
providing suction to the low pressure lumen to evacuate the broken apart thrombi.
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Abstract
A thrombectomy system may include an elongate shaft that defines a high pressure lumen and a low pressure lumen. The high pressure lumen may terminate near an end of the low pressure lumen. An expandable capture basket may be disposed near the end of the low pressure lumen. A thrombectomy apparatus may include an elongate shaft, an evacuation lumen extending within the elongate shaft and a high pressure lumen extending within the elongate shaft. A capture apparatus may be disposed within a wire lumen that extends within the elongate shaft such that the capture apparatus extends distally from the wire lumen.
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Citations
32 Claims
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1. A method of removing thrombi, the method comprising the steps of:
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providing a thrombectomy apparatus comprising an elongate shaft defining a high pressure lumen and a low pressure lumen, the high pressure lumen terminating near a distal end of the low pressure lumen, and an expandable capture basket disposed generally adjacent the distal end of the low pressure lumen; wherein the expandable capture basket includes an actuatable frame and a blood permeable membrane disposed over at least a portion of the frame; advancing the thrombectomy apparatus to a desired location within a patient'"'"'s vasculature; expanding the expandable capture basket; capturing thrombi within the expandable capture basket; providing a source of pressurized fluid in fluid communication with the high pressure lumen; breaking apart the captured thrombi using the pressurized fluid; and providing suction to the low pressure lumen to evacuate the broken apart thrombi. - 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. A method of removing thrombi from within a vessel, the method comprising steps of:
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capturing thrombi within a capture apparatus comprising an actuatable frame and a blood permeable membrane disposed over at least a portion of the frame, the membrane defining an interior of the capture apparatus therein; advancing a thrombectomy catheter defining a high pressure lumen and an evacuation lumen into the interior of the capture apparatus; disrupting the captured thrombi with a high pressure jet exiting a distal end of the high pressure lumen; and suctioning the disrupted thrombi out of the interior of the capture apparatus through the evacuation lumen. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification