Retrieval of material from vessel lumens
First Claim
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1. A device for retrieving clot material from a blood vessel lumen, the device comprising:
- an elongated shaft having a distal zone;
a capture structure having a proximal region coupled to the distal zone of the elongated shaft;
a cover including a plurality of filaments, the cover having a first portion coupled to the distal zone of the elongated shaft and a free second portion, the cover having a first position in which the second portion extends proximally from the first portion, and a second position inverted relative to the first position in which the second portion extends distally from the first portion such that the cover at least partially surrounds the capture structure;
a connector coupling the first portion of the cover to the distal zone of the elongated shaft, wherein at least a portion of the filaments protrude proximally from a proximal terminus of the connector and is radially aligned with or inward of an outer surface of the connector; and
a jacket at least partially over the proximal terminus of the connector and the protruding portion of the filaments, wherein the jacket prevents direct contact between the cover and the protruding portions of the filaments as the cover moves from the first position to the second position.
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Accused Products
Abstract
Devices for removing clot material from a blood vessel lumen and associated systems and methods are disclosed herein. A clot retrieving device may include, for example, an elongated shaft, a capture structure having a proximal region coupled to the distal zone of the elongated shaft, a cover, and a connector coupling the cover to the distal zone of the elongated shaft. The device may further include a jacket at least partially over the proximal terminus of the connector and a portion of the filaments protruding from the connector.
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Citations
26 Claims
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1. A device for retrieving clot material from a blood vessel lumen, the device comprising:
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an elongated shaft having a distal zone; a capture structure having a proximal region coupled to the distal zone of the elongated shaft; a cover including a plurality of filaments, the cover having a first portion coupled to the distal zone of the elongated shaft and a free second portion, the cover having a first position in which the second portion extends proximally from the first portion, and a second position inverted relative to the first position in which the second portion extends distally from the first portion such that the cover at least partially surrounds the capture structure; a connector coupling the first portion of the cover to the distal zone of the elongated shaft, wherein at least a portion of the filaments protrude proximally from a proximal terminus of the connector and is radially aligned with or inward of an outer surface of the connector; and a jacket at least partially over the proximal terminus of the connector and the protruding portion of the filaments, wherein the jacket prevents direct contact between the cover and the protruding portions of the filaments as the cover moves from the first position to the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device for retrieving clot material from a blood vessel lumen, the device comprising:
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an interventional element; a manipulation member having a distal zone; a cover having a first portion coupled to the distal zone of the manipulation member and a free second portion, the cover having a first position in which the second portion extends proximally from the first portion, and a second position inverted relative to the first position in which the second portion extends distally from the first portion such that the cover surrounds at least a portion of the interventional element; a connector coupling the first portion of the cover to the distal zone of the manipulation member, wherein at least a portion of the cover extends proximally from a proximal terminus of the connector and is radially aligned with or inward of an outer surface of the connector; and a jacket extending from the proximal terminus of the connector and covering the extending portion of the cover, thereby preventing the extending portion of the cover from engaging the remaining portion of the cover as the cover moves from the first position to the second position. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for retrieving clot material from a treatment site within a blood vessel lumen, the method comprising:
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providing a clot retrieving device including an elongated shaft having a distal zone and a retrieval assembly at the distal zone, the retrieval assembly having; a capture structure with a proximal region coupled to the distal zone of the elongated shaft, a cover having a plurality of filaments, a first portion coupled to the distal zone of the elongated shaft and a free second portion, the cover having a first position in which the second portion extends proximally from the first portion, and a second position inverted relative to the first position in which the second portion extends distally from the first portion such that the cover at least partially surrounds the capture structure, a connector coupling the first portion of the cover to the distal zone of the elongated shaft, wherein at least a portion of the filaments protrudes proximally from a proximal terminus of the connector and is radially inward of or substantially even with an outer surface of the connector, and a jacket at least partially over the proximal terminus of the connector and the protruding portion of the filaments; intravascularly advancing the clot retrieving device within a delivery catheter to the treatment site such that the retrieval assembly is positioned proximate the clot material at the treatment site; deploying the retrieval assembly within the blood vessel lumen such that the retrieval assembly expands to the first position; and withdrawing the retrieval assembly proximally through the delivery catheter to remove clot material from the treatment site. - View Dependent Claims (23, 24, 25, 26)
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Specification