Clot retrieval system for removing occlusive clot from a blood vessel
First Claim
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1. A method for retrieving a clot from a vasculature comprising:
- providing a first catheter;
providing a second catheter over the first catheter;
providing a clot retrieval device having a compressed delivery configuration in the first catheter and an expanded deployed configuration distal of the first catheter, the clot retrieval device having a shaft;
deploying the clot retrieval device from the first catheter;
extending a length of the shaft from a proximal end of the shaft, the proximal end of the shaft being proximal of the first and second catheters; and
retracting and removing the first catheter over the shaft whilst maintaining control of the proximal end of the shaft.
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Accused Products
Abstract
A clot retrieval device comprising an elongate shaft having a proximal end and a distal end and a clot retrieval element at the distal end of the elongate shaft. A proximal end of the elongate shaft of the clot retrieval device is adapted for retraction of a first catheter over the clot retrieval device elongate shaft. A second catheter is advanced to or adjacent to the distal end of the clot retrieval device shaft to enable enhanced aspiration adjacent to the clot retrieval element.
503 Citations
19 Claims
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1. A method for retrieving a clot from a vasculature comprising:
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providing a first catheter; providing a second catheter over the first catheter; providing a clot retrieval device having a compressed delivery configuration in the first catheter and an expanded deployed configuration distal of the first catheter, the clot retrieval device having a shaft; deploying the clot retrieval device from the first catheter; extending a length of the shaft from a proximal end of the shaft, the proximal end of the shaft being proximal of the first and second catheters; and retracting and removing the first catheter over the shaft whilst maintaining control of the proximal end of the shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for retrieving a clot from a vasculature, comprising:
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advancing a first catheter to a target location distal of an aortic arch of a patient, at least a portion of the first catheter translatably disposed within a lumen of a second catheter; deploying a clot retrieval device, the clot retrieval device being expandable between a delivery configuration within the first catheter and a deployed configuration distal of the first catheter and being coupled to a distal end of a shaft at least partially disposed within a lumen of the first catheter; extending a length of the shaft from a proximal end of the shaft, the proximal end of the shaft being proximal of the first and second catheters; and retracting the first catheter relative to the second catheter and proximal of the aortic arch while maintaining control of the clot retrieval device via the proximal end of the shaft. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for retrieving a clot from a vasculature, comprising:
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advancing a first catheter to a target location, at least a portion of the first catheter disposed within a lumen of a second catheter; deploying a clot retrieval device, the clot retrieval device being expandable between a delivery configuration within the first catheter and a deployed configuration distal of the first catheter and being coupled to a distal end of a shaft at least partially disposed within the first catheter; extending a length of the shaft from a proximal end of the shaft, the proximal end of the shaft being proximal of the first and second catheters; retracting the first catheter relative to the second catheter while maintaining control of the clot retrieval device via the proximal end of the shaft; and applying aspiration through the lumen of the second catheter. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification