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Retrieval of material from vessel lumens

  • US 10,722,257 B2
  • Filed: 05/12/2017
  • Issued: 07/28/2020
  • Est. Priority Date: 05/12/2017
  • Status: Active Grant
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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