Adjustable implant system
First Claim
1. A system for changing the dimension of a portion of a subject comprising:
- an adjustable implant configured for implantation within a patient comprising;
a tubular member;
an internal magnet disposed within the tubular member, the internal magnet configured to rotate in response to a moving magnetic field originating external to the subject;
an adjustable member operatively coupled to the internal magnet, wherein the internal magnet is configured to rotate in response to the moving magnetic field and change a dimension of the adjustable implant as the internal magnet rotates; and
a magnetic brake configured for implantation within a patient, wherein, in the absence of the moving magnetic field, the magnetic brake is configured to prevent the internal magnet from rotating, and wherein, in the presence of the moving magnetic field, the magnetic brake is configured to allow the internal magnet to rotate.
5 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods treat a heart valve using a magnetically adjustable annuloplasty ring attached to or near a cardiac valve annulus. A changing magnetic field may be used to selectively increase or decrease a circumference of, or otherwise modify the shape of, the implanted annuloplasty ring. The adjustable annuloplasty ring includes a tubular body member, one or more adjustable members, and an internal magnet within the tubular body member. The tubular body member and the one or more adjustable members form a ring shape. The internal magnet is configured to rotate in response to a rotating external magnetic field. The internal magnet is coupled to the one or more adjustable members to change a dimension of the ring shape as the internal magnet rotates. A system for treating a heart valve may include an external adjustment device having one or more external magnets to generate the rotating external magnetic field.
189 Citations
10 Claims
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1. A system for changing the dimension of a portion of a subject comprising:
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an adjustable implant configured for implantation within a patient comprising; a tubular member; an internal magnet disposed within the tubular member, the internal magnet configured to rotate in response to a moving magnetic field originating external to the subject; an adjustable member operatively coupled to the internal magnet, wherein the internal magnet is configured to rotate in response to the moving magnetic field and change a dimension of the adjustable implant as the internal magnet rotates; and a magnetic brake configured for implantation within a patient, wherein, in the absence of the moving magnetic field, the magnetic brake is configured to prevent the internal magnet from rotating, and wherein, in the presence of the moving magnetic field, the magnetic brake is configured to allow the internal magnet to rotate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification