Devices, systems, and methods for reshaping a heart valve annulus, including the use of magnetic tools
First Claim
1. A method of establishing a pathway to a desired location within a body of a patient, the method comprising:
- providing a first elongate member extending along a longitudinal axis and having a first magnetically attracting element along a distal portion thereof;
providing a second elongate member extending along a longitudinal axis and having a distal hole for passage of a guidewire therethrough, the second elongate member further including a second magnetically attracting element along a distal portion thereof and an interior channel extending to a side hole in the distal portion, wherein the side hole is axially spaced apart from the distal hole;
positioning the first elongate member at a first location within the body by advancing the first elongate member through a first vascular access point;
positioning the second elongate member at a second location within the body adjacent the first location with a layer of tissue therebetween by advancing the second elongate member through a second vascular access point;
aligning the distal portions of the first and second elongate member by magnetically coupling the first and second magnetically attracting elements on opposite sides of the layer of tissue;
passing a piercing element between the first and second elongate elements through the layer of tissue and through the side hole of the second elongate member while magnetically coupled, wherein the piercing element comprises a puncturing guidewire advanced from the first vascular access point and through the layer of tissue;
further advancing the puncturing guidewire until the puncturing guidewire exits the second vascular access site so as to define a loop guidewire, thereby allowing a physician to pull an implant or tool into the patient'"'"'s vasculature; and
advancing an exchange catheter over the puncturing guidewire through the first vascular access point until the exchange catheter exits at the second vascular access point to facilitate delivery of the implant or tool by pulling the puncturing guidewire without injuring tissues.
5 Assignments
0 Petitions
Accused Products
Abstract
Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
151 Citations
24 Claims
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1. A method of establishing a pathway to a desired location within a body of a patient, the method comprising:
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providing a first elongate member extending along a longitudinal axis and having a first magnetically attracting element along a distal portion thereof; providing a second elongate member extending along a longitudinal axis and having a distal hole for passage of a guidewire therethrough, the second elongate member further including a second magnetically attracting element along a distal portion thereof and an interior channel extending to a side hole in the distal portion, wherein the side hole is axially spaced apart from the distal hole; positioning the first elongate member at a first location within the body by advancing the first elongate member through a first vascular access point; positioning the second elongate member at a second location within the body adjacent the first location with a layer of tissue therebetween by advancing the second elongate member through a second vascular access point; aligning the distal portions of the first and second elongate member by magnetically coupling the first and second magnetically attracting elements on opposite sides of the layer of tissue; passing a piercing element between the first and second elongate elements through the layer of tissue and through the side hole of the second elongate member while magnetically coupled, wherein the piercing element comprises a puncturing guidewire advanced from the first vascular access point and through the layer of tissue; further advancing the puncturing guidewire until the puncturing guidewire exits the second vascular access site so as to define a loop guidewire, thereby allowing a physician to pull an implant or tool into the patient'"'"'s vasculature; and advancing an exchange catheter over the puncturing guidewire through the first vascular access point until the exchange catheter exits at the second vascular access point to facilitate delivery of the implant or tool by pulling the puncturing guidewire without injuring tissues. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification