Two-Stage Delivery Systems and Methods for Fixing a Leadless Implant to Tissue
First Claim
1. A method of delivering a leadless medical implant to tissue at an implantation site within a patient, the method comprising the steps of:
- percutaneously introducing and advancing an implant fixation system through the vasculature of the patient to an implantation site, wherein the implant fixation system includes an elongate wire proximally extending from and releasably attached to a docking base;
anchoring the docking base into tissue at the implantation site;
percutaneously introducing and advancing a leadless medical implant over the wire of the fixation system through the vasculature to the anchored docking base; and
coupling the leadless medical implant to the docking base to retain the leadless medical implant to tissue at the implantation site.
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Accused Products
Abstract
Systems and methods of delivering and retaining a leadless medical implant to tissue, wherein a docking base and the implant are sequentially delivered to an implantation site. In a first stage, the docking base is delivered and deployed into tissue at an implantation site. In a second stage, the implant is navigated through the vasculature and coupled to the docking base. Various mechanisms for navigating the implant to the previously implanted docking base and coupling the implant thereto are described. Navigational mechanisms include advancing the implant over a proximally extending wire portion that is releasably attached to the previously implanted docking base, utilizing fluoroscopic visualization to guide the implant to a previously implanted docking base that is at least partially radiopaque and utilizing electromagnetism to guide the implant to a previously implanted docking base that is electro-magnetizable.
201 Citations
20 Claims
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1. A method of delivering a leadless medical implant to tissue at an implantation site within a patient, the method comprising the steps of:
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percutaneously introducing and advancing an implant fixation system through the vasculature of the patient to an implantation site, wherein the implant fixation system includes an elongate wire proximally extending from and releasably attached to a docking base; anchoring the docking base into tissue at the implantation site; percutaneously introducing and advancing a leadless medical implant over the wire of the fixation system through the vasculature to the anchored docking base; and coupling the leadless medical implant to the docking base to retain the leadless medical implant to tissue at the implantation site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for delivering a leadless medical implant to tissue at an implantation site within a patient, the system comprising:
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a leadless medical implant; a docking base percutaneously deliverable through the vasculature of the patient, wherein the docking base includes a deployable anchor for lodging into tissue at an implantation site and a coupler for engaging and securing the leadless medical implant thereto; and a wire proximally extending from and releasably attached to the docking base, wherein the leadless medical implant is configured to be delivered percutaneously by being tracked over the wire through the vasculature and to be secured at the implantation site by being coupled to the coupler of the docking base. - View Dependent Claims (16, 17)
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18. A method of delivering a leadless medical implant to tissue at an implantation site within a patient, the method comprising the steps of:
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percutaneously introducing and advancing distal ends of two elongate tethers through the vasculature to an implantation site; fastening the distal ends of the tethers into tissue at the implantation site; percutaneously introducing and advancing a leadless medical implant over the tethers through the vasculature to the implantation site until a distal end of the leadless medical implant contacts the tissue; and securing the tethers around a proximal end of the leadless medical implant to retain the leadless medical implant to tissue at the implantation site. - View Dependent Claims (19, 20)
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Specification