MEDICAL DEVICE FOR TISSUE DISRUPTION WITH SERRATED EXPANDABLE PORTION
First Claim
1. An apparatus, comprising:
- an elongate member, a distal end portion of the elongate member including a plurality of elastically deformable arms configured to perform a medical procedure in a biological body,the plurality of elastically deformable arms collectively having an unconstrained expanded configuration,each of the elastically deformable arms from the plurality of elastically deformable arms having a serrated edge portion.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatuses and methods for accessing and disrupting a tissue are disclosed herein. In one embodiment, an apparatus includes an elongate member. A distal end portion of the elongate member includes multiple elastically deformable arms that are configured to perform a medical procedure in a biological body. The elastically deformable arms collectively have an unconstrained expanded configuration. Each of the elastically deformable arms has a serrated edge portion. The distal end portion of the elongate member can be rotated while disposed within a biological body such that the serrated edge portion of the arms disrupts tissue within the biological body. The elastically deformable arms can collectively have a collapsed configuration in which the elastically deformable arms define a smaller outer diameter than an outer diameter of the elastically deformable arms in the unconstrained expanded configuration.
90 Citations
24 Claims
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1. An apparatus, comprising:
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an elongate member, a distal end portion of the elongate member including a plurality of elastically deformable arms configured to perform a medical procedure in a biological body, the plurality of elastically deformable arms collectively having an unconstrained expanded configuration, each of the elastically deformable arms from the plurality of elastically deformable arms having a serrated edge portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method, comprising:
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inserting a distal end portion of a cannula into a biological body; extending an expandable distal end portion of an elongate member out through a distal end of the cannula to allow the expandable distal end portion of the elongate member to expand to an unconstrained expanded configuration; rotating the elongate member such that serrated arms of the expandable distal end portion disrupt tissue within the biological body; and retracting the expandable distal end portion of the elongate member into the cannula to elastically deform the expandable distal end portion into a collapsed configuration. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. An apparatus, comprising:
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an elongate member; an expandable member disposed at a distal end of the elongate member, the expandable member having a plurality of arms, each arm from the plurality of arms including serrations on at least one edge; and an actuator coupled to the elongate member and configured to rotate the elongate member, the expandable member configured to disrupt tissue within the biological body when the expandable member is in an expanded configuration and rotated within the biological tissue. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification