Blood vessel occlusion
First Claim
Patent Images
1. An occlusion device delivery system, comprising:
- a catheter having a central axis and a lumen extending along the central axis between distal and proximal sections, the distal section having proximal and distal apertures extending through a wall of the catheter;
an engagement mechanism extending through the lumen; and
an implant supported on the catheter distal section and comprising a wire frame, wherein in an engaged configuration, the wire frame has (i) a proximal segment curving inwardly across the proximal aperture to be engaged with the engagement mechanism and terminating in a proximal terminal end tab having an increased cross-section relative to a first adjacent section of the wire frame, the proximal terminal end tab being positioned outside of the proximal aperture and (ii) a distal segment curving inwardly across the distal aperture to be engaged with the engagement mechanism and terminating in a distal terminal end tab having an increased cross-section relative to a second adjacent section of the wire frame, the distal terminal end tab being positioned outside of the distal aperture.
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Abstract
An occlusion device delivery system can deliver an implant using a catheter. A distal section of the catheter has proximal and distal apertures extending through a wall of the catheter. The implant can be wound about the distal section and secured to the catheter via an engagement mechanism. The implant has a proximal segment that curves inwardly across the proximal aperture and a distal segment that curves inwardly across the distal aperture. The engagement mechanism engages the proximal and distal segments within their respective apertures to secure the implant to the catheter.
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Citations
27 Claims
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1. An occlusion device delivery system, comprising:
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a catheter having a central axis and a lumen extending along the central axis between distal and proximal sections, the distal section having proximal and distal apertures extending through a wall of the catheter; an engagement mechanism extending through the lumen; and an implant supported on the catheter distal section and comprising a wire frame, wherein in an engaged configuration, the wire frame has (i) a proximal segment curving inwardly across the proximal aperture to be engaged with the engagement mechanism and terminating in a proximal terminal end tab having an increased cross-section relative to a first adjacent section of the wire frame, the proximal terminal end tab being positioned outside of the proximal aperture and (ii) a distal segment curving inwardly across the distal aperture to be engaged with the engagement mechanism and terminating in a distal terminal end tab having an increased cross-section relative to a second adjacent section of the wire frame, the distal terminal end tab being positioned outside of the distal aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An occlusion device delivery system, comprising:
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a catheter having a central axis, a lumen extending therethrough, and proximal and distal sidewall apertures extending into the lumen; an engagement mechanism disposed within the lumen; and an implant configured to be secured to the catheter via the engagement mechanism, the implant comprising a wire frame having first and second end segments, the first end segment comprising a first tab having an increased cross-section relative to a first adjacent section of the wire frame, the second end segment comprises a second tab having an increased cross-section relative to a second adjacent section of the wire frame, wherein in an engaged configuration, the first and second end segments extend within the proximal and distal sidewall apertures and the implant bends inwardly from a helical path toward the central axis at the first and second end segments and first and second tabs of each of the first and second end segments are positioned outside of the proximal and distal sidewall apertures when engaged by the engagement mechanism, the engagement mechanism extending between a sidewall of the catheter and the first and second end segments to radially restrain the first end segment within the proximal sidewall aperture and the second end segment within the distal sidewall aperture, the engagement mechanism being movable to disengage from the first and second end segments to permit expansion of the implant from the engaged configuration. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An occlusion device delivery system, comprising:
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a catheter having a central axis, a lumen extending therethrough, and proximal and distal sidewall apertures extending into the lumen; an engagement mechanism disposed within the lumen; and an implant configured to be secured to the catheter via the engagement mechanism, the implant comprising first and second end segments, the first end segment comprising a first tab having an increased cross-section relative to a first adjacent section of the first end segment, wherein in an engaged configuration, the first end segment extends within the proximal sidewall aperture and the first tab is positioned outside of the proximal sidewall aperture while the engagement mechanism extends between a sidewall of the catheter and the first end segment to radially restrain the first end segment within the proximal sidewall aperture. - View Dependent Claims (27)
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Specification