Adjustable implant and method of use
First Claim
1. A system comprising:
- an adjustable implant configured for implantation internally within a subject, the adjustable implant comprising a permanent magnet configured for rotation about an axis of rotation, the permanent magnet operatively coupled to a drive transmission configured to alter a dimension of the adjustable implant;
an external adjustment device configured for placement on or adjacent to the skin of the subject comprising at least one magnet configured for rotation, the external adjustment device further comprising a motor configured to rotate the at least one magnet and an optical encoder comprising a light source and a light receiver configured to monitor the position of a surface mechanically coupled to the motor, whereby rotation of the at least one magnet of the external adjustment device effectuates rotational movement of the permanent magnet of the adjustable implant and alters the dimension of the adjustable implant; and
drive control circuitry configured to receive an input signal from the optical encoder corresponding to the angular position of the at least one magnet and drive the motor of the external adjustment device to achieve a target dimension of the adjustable implant.
5 Assignments
0 Petitions
Accused Products
Abstract
A system includes an adjustable implant configured for implantation internally within a subject, the adjustable implant having a permanent magnet configured for rotation about an axis of rotation, the permanent magnet operatively coupled to a drive transmission configured to alter a dimension of the adjustable implant. The system further includes an external adjustment device configured for placement on or adjacent to the skin of the subject comprising at least one magnet configured for rotation, the external adjustment device further comprising a motor configured to rotate the at least one magnet, whereby rotation of the at least one magnet of the external adjustment device effectuates rotational movement of the permanent magnet of the adjustable implant and alters the dimension of the adjustable implant. The system includes drive control circuitry configured to drive the motor of the external adjustment device to achieve a target dimension of the adjustable implant.
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Citations
47 Claims
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1. A system comprising:
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an adjustable implant configured for implantation internally within a subject, the adjustable implant comprising a permanent magnet configured for rotation about an axis of rotation, the permanent magnet operatively coupled to a drive transmission configured to alter a dimension of the adjustable implant; an external adjustment device configured for placement on or adjacent to the skin of the subject comprising at least one magnet configured for rotation, the external adjustment device further comprising a motor configured to rotate the at least one magnet and an optical encoder comprising a light source and a light receiver configured to monitor the position of a surface mechanically coupled to the motor, whereby rotation of the at least one magnet of the external adjustment device effectuates rotational movement of the permanent magnet of the adjustable implant and alters the dimension of the adjustable implant; and drive control circuitry configured to receive an input signal from the optical encoder corresponding to the angular position of the at least one magnet and drive the motor of the external adjustment device to achieve a target dimension of the adjustable implant. - 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, 25, 26, 27, 28, 29)
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30. A method of adjusting an implant device configured for implantation internally within a subject, the implant device comprising a permanent magnet configured for rotation about an axis of rotation, the permanent magnet operatively coupled to a drive transmission configured to alter a dimension of the adjustable implant, the method comprising:
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inputting numerical drive instructions into drive control circuitry of a programmable external adjustment device comprising a motor, at least one permanent magnet configured for rotational movement in response to actuation of the motor, and an encoder configured to monitor the rotational movement of the at least one permanent magnet of the external adjustment device; and adjusting the implant device in accordance with the instructions stored in the drive control circuitry of the external adjustment device, wherein the drive control circuitry is configured to receive an input signal from the encoder corresponding to the angular position of the at least one permanent magnet of the external adjustment device. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification