DEVICES AND METHODS FOR POSITIONING AND MONITORING TETHER LOAD FOR PROSTHETIC MITRAL VALVE
First Claim
1. An apparatus, comprising:
- a handle assembly coupled to an elongate member;
a docking member coupled to a distal end of the elongate member, the docking member configured to be releasably coupled to an epicardial anchor device configured to secure a tether extending from a prosthetic heart valve implanted within a heart at a location on an exterior of a ventricular wall of the heart; and
a force sensor device coupled to the handle assembly, the force sensor device configured to measure a force exerted on the force sensor device, the force associated with a tension of the tether extending through the elongate member and handle assembly.
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Accused Products
Abstract
Apparatus and methods are described herein for positioning an epicardial anchor device and measuring the load of a tether extending from a prosthetic heart valve and coupled to the epicardial anchor device. In some embodiments, an apparatus includes a handle assembly coupled to an elongate member and a docking member coupled to a distal end of the elongate member. The docking member can be releasably coupled to an epicardial anchor device configured to secure a tether extending from a prosthetic heart valve implanted with a heart at a location on an exterior of a ventricular wall of the heart. A force sensor device is coupled to the handle assembly and can measure a force exerted on the force sensor device. The force is associated with a tension of the tether extending through the elongate member and handle assembly.
128 Citations
25 Claims
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1. An apparatus, comprising:
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a handle assembly coupled to an elongate member; a docking member coupled to a distal end of the elongate member, the docking member configured to be releasably coupled to an epicardial anchor device configured to secure a tether extending from a prosthetic heart valve implanted within a heart at a location on an exterior of a ventricular wall of the heart; and a force sensor device coupled to the handle assembly, the force sensor device configured to measure a force exerted on the force sensor device, the force associated with a tension of the tether extending through the elongate member and handle assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method, comprising:
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inserting a tether through an epicardial anchor device, the tether extending from a prosthetic heart valve implanted within the heart, the tether extending outside of the heart, inserting the tether through a positioning device such that a proximal end of the tether extends outside a proximal end of the positioning device; coupling the epicardial anchor device to a docking member disposed at a distal end of the positioning device; pulling the tether proximally until a desired tension on the tether is achieved; positioning the epicardial anchor device at a desired location on an outside wall of the heart; after the positioning, securing the tether to the epicardial anchor device; and releasing the epicardial anchor device from the docking member. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An apparatus, comprising:
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a handle assembly coupled to an elongate member; a docking member coupled to a distal end of the elongate member, the docking member configured to be releasably coupled to an epicardial anchor device configured to secure a tether extending from a prosthetic heart valve implanted with a heart at a location on an exterior of a ventricular wall of the heart; and a tether securing device coupled to the handle assembly proximal to the handle assembly, the tether securing device configured to secure the tether extending through the elongate member and handle assembly at a fixed position relative to the handle assembly. - View Dependent Claims (18, 19, 20)
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21. An apparatus comprising:
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a tether release tool including a handle coupled to an elongate member, the elongate member including a shaped distal tip, the shaped distal tip having a shape corresponding to a shape of an opening in an epicardial anchor device configured to secure a tether extending from a prosthetic heart valve implanted within a heart to an outer wall the heart, the distal tip of the elongate member configured to be received within the corresponding opening in the epicardial anchor device and used to unlock a tether pinning mechanism of the epicardial anchor device such that a tension on a tether secured to the epicardial anchor device can be adjusted. - View Dependent Claims (22)
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23. A method, comprising:
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inserting a distal tip of a tether release tool into an opening defined by an epicardial anchor device, the tether release tool including a handle coupled to an elongate member, the elongate member including the distal tip, the distal tip having a shape corresponding to a shape of the opening in the epicardial anchor device, after the inserting, rotating the tether release tool to unlock a locking mechanism of the epicardial anchor device and release a tether coupled thereto; removing the distal tip of the elongate member from the opening of the epicardial anchor device; pulling the tether proximally relative to the epicardial anchor device to adjust a tension on the tether. - View Dependent Claims (24, 25)
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Specification