VASCULAR AND BODILY DUCT TREATMENT DEVICES AND METHODS
First Claim
1. A device comprising:
- an elongate self-expandable member movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient, the expandable member comprising a plurality of cell structures, the expandable member having a proximal end portion with a proximal end and a cylindrical main body portion, the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member, the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member, the outer-most cell structures in the proximal end portion having struts with a greater cross-sectional area than the struts of the cell structures in the main body portion, the struts in the main body portion having a thickness to width ratio of greater than one.
1 Assignment
0 Petitions
Accused Products
Abstract
A device including a self-expandable member having a proximal end portion and a main body portion. Each of the self-expandable portions consists of a plurality of cell structures formed by intersecting strut members. In one implementation, at least one proximal cell structure in the proximal end portion has one or more struts that have a width and/or thickness greater than the width and/or thickness of the majority of strut members in the main body of the expandable member. In another implementation at least some of the intersecting strut members have a thickness to width ratio of greater than one. Attached to at least one of the proximal-most cell structures in the proximal end portion is a proximally extending flexible wire having sufficient length and flexibility to navigate the tortuous vasculature of a patient. In another implementation, the device is delivered to the treatment site through the lumen of a delivery catheter.
168 Citations
33 Claims
-
1. A device comprising:
an elongate self-expandable member movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient, the expandable member comprising a plurality of cell structures, the expandable member having a proximal end portion with a proximal end and a cylindrical main body portion, the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member, the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member, the outer-most cell structures in the proximal end portion having struts with a greater cross-sectional area than the struts of the cell structures in the main body portion, the struts in the main body portion having a thickness to width ratio of greater than one. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
10. A device comprising:
a delivery wire, an elongate self-expandable member movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient, the expandable member comprising a plurality of cell structures, the expandable member having a proximal end portion with a proximal end and a cylindrical main body portion, the proximal end having an integrally formed wire segment extending therefrom with a coil positioned about the wire segment, the coil comprising a first closely wound segment and a second loosely wound segment that contains at least one gap, the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member, the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member, a proximal end of the wire segment attached to a distal end of the delivery wire by a bonding agent within the second loosely wound segment of the coil. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
18. A device comprising:
an elongate self-expandable member movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient, the expandable member comprising a plurality of cell structures, the expandable member having a proximal end portion with a proximal end, a cylindrical main body portion, the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member, the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member, the outer-most cell structures in the proximal end portion having proximal-most linear wall segments that, in a two-dimensional view, form first and second substantially linear rail segments that each extend from a position at or near the proximal-most end of the expandable member to a distal position at or near the cylindrical main body portion. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 33)
-
27. A device comprising:
an elongate self-expandable member movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient, the expandable member comprising a plurality of cell structures, the expandable member having a proximal end portion with a proximal end and a cylindrical main body portion, the cell structures in the main body portion comprise a first plurality of intersecting struts and extend circumferentially around a longitudinal axis of the expandable member, the cell structures in the proximal end portion comprise a second plurality of intersecting struts and extend less than circumferentially around the longitudinal axis of the expandable member, at least some of the first plurality of intersecting struts having a thickness to width ratio of greater than one. - View Dependent Claims (28, 29, 30, 31, 32)
Specification