Braid implant delivery systems
First Claim
Patent Images
1. A method of implant delivery comprising:
- advancing an implant mounted on a delivery system to a target site, the implant coupled to the delivery system at a proximal end of the implant and a distal end of the implant; and
compressing an implant-bearing region of the delivery system, the compressing bringing the proximal end and the distal end closer together, thereby first expanding the implant to achieve tissue apposition, and after expanding the implant, releasing the proximal end of the implant and releasing the distal end of the implant, wherein a distal end of the implant is constrained by a distal cover and wherein the proximal end of the Implant is constrained by a proximal cover, and wherein compressing the implant-bearing region of the delivery system opens the distal cover and the proximal cover.
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Abstract
Embolic implants delivery systems and methods of manufacture and delivery are disclosed. The devices can be used for aneurysm and/or fistula treatment. The designs offer low profile compressibility for delivery to neurovasculature, while maintaining advantageous delivery and implant detachment control features.
650 Citations
15 Claims
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1. A method of implant delivery comprising:
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advancing an implant mounted on a delivery system to a target site, the implant coupled to the delivery system at a proximal end of the implant and a distal end of the implant; and compressing an implant-bearing region of the delivery system, the compressing bringing the proximal end and the distal end closer together, thereby first expanding the implant to achieve tissue apposition, and after expanding the implant, releasing the proximal end of the implant and releasing the distal end of the implant, wherein a distal end of the implant is constrained by a distal cover and wherein the proximal end of the Implant is constrained by a proximal cover, and wherein compressing the implant-bearing region of the delivery system opens the distal cover and the proximal cover. - View Dependent Claims (2, 3, 4, 5)
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6. A method of implant delivery comprising:
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advancing a delivery system to a target site, the delivery system comprising a core member, a stent mounted over a distal portion of the core member, a plurality of expanders underlying the stent, a proximal sheath overlying a proximal portion of the stent, and a distal sheath overlying a distal portion of the stent; and applying a compressive force to bring the proximal sheath and the distal sheath closer together to open the proximal sheath and the distal sheath, thereby releasing the stent. - View Dependent Claims (7, 8, 9, 10)
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11. A method of implant delivery comprising:
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providing a delivery system comprising; a tubular braid implant having proximal and distal ends; a core member carrying a plurality of expanders underlying the implant; a proximal cover extending over and constraining the proximal end of the implant; a distal cover extending over and constraining the distal end of the implant; advancing the delivery system to a target location; and withdrawing the core member to bring the proximal cover and the distal cover closer together, such that one or more of the expanders urges the proximal cover open and one or more of the expanders urges the distal cover open. - View Dependent Claims (12, 13, 14, 15)
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Specification