Positioning and detaching implants
First Claim
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1. A system for placing an implant at an aneurysm, comprising:
- a tubular member having (a) a member lumen in the tubular member and (b) an opening at a distal end portion of the tubular member;
an implant configured for placement at an aneurysm and having an enlarged portion positioned in the member lumen proximal to the opening; and
an elongate member extending in the lumen and having an expandable/compressible body (a) positioned at least partially distal to the enlarged portion in the lumen and (b) expanded distal to the enlarged portion to retain the enlarged portion in the lumen, and wherein the expandable/compressible body comprises a mesh.
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Accused Products
Abstract
Intravascular implant systems and methods of positioning and detaching implants are described. One such system carries an implant by retaining an engagement member in a position proximal to an aperture at a distal end of the delivery system. The engagement member is retained proximal to the aperture by an elongate member that is coupled to the implant. Once the implant is in a desired implant position, the elongate member is released from the engagement member, and the implant is allowed to move away from the delivery system.
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Citations
14 Claims
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1. A system for placing an implant at an aneurysm, comprising:
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a tubular member having (a) a member lumen in the tubular member and (b) an opening at a distal end portion of the tubular member; an implant configured for placement at an aneurysm and having an enlarged portion positioned in the member lumen proximal to the opening; and an elongate member extending in the lumen and having an expandable/compressible body (a) positioned at least partially distal to the enlarged portion in the lumen and (b) expanded distal to the enlarged portion to retain the enlarged portion in the lumen, and wherein the expandable/compressible body comprises a mesh. - View Dependent Claims (2, 3, 4, 5)
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6. A system for placing an implant at an aneurysm, comprising:
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a tubular member having a member lumen and an opening at a distal end portion of the tubular member; an implant having an enlarged portion positioned in the lumen proximal to the opening; and an elongate member extending in the lumen, the elongate member having an expandable/compressible body that contacts a distal-facing surface of the enlarged portion, thereby retaining the enlarged portion in the member lumen, wherein proximal movement of the elongate member relative to the end portion results in deformation of the expandable/compressible body to release the enlarged portion from the member lumen, and wherein the expandable/compressible body comprises a mesh. - View Dependent Claims (7, 8, 9)
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10. A method for deploying an implant at an aneurysm, comprising:
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advancing in a patient'"'"'s vasculature; (i) a tubular member comprising a member lumen and an opening at a distal end portion of the tubular member; (ii) an implant configured for placement at an aneurysm and having an enlarged portion positioned in the member lumen proximal to the opening; (iii) an elongate member extending in the lumen and having an expandable/compressible body (a) positioned at least partially distal to the enlarged portion in the lumen, and (b) expanded distal to the enlarged portion to retain the enlarged portion in the lumen, and wherein the expandable/compressible body comprises a mesh; and withdrawing the elongate member proximally relative to the tubular member to release the coil at the aneurysm. - View Dependent Claims (11, 12, 13, 14)
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Specification