External adjustment device for distraction device
First Claim
Patent Images
1. An external adjustment device comprising:
- at least one magnet configured to generate a changing magnetic field and rotatably housed within a housing;
a drive system;
a power source;
at least one directional control configured to effect a change in the changing magnetic field;
a display configured to communicate information to a user, wherein the display is configured to provide information feedback to the user at least one of prior to, during, or after a use of the external adjustment device.
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Abstract
A method of positioning an external adjustment device relative to a patient includes placing a magnetic viewing sheet adjacent to a patient and identifying the location of an implanted magnetic assembly using the magnetic viewing sheet by visualizing a magnetic image of the implanted magnetic assembly in the magnetic viewing sheet. The external adjustment device is placed on the patient adjacent to the location where the magnetic image was located.
1228 Citations
20 Claims
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1. An external adjustment device comprising:
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at least one magnet configured to generate a changing magnetic field and rotatably housed within a housing; a drive system; a power source; at least one directional control configured to effect a change in the changing magnetic field; a display configured to communicate information to a user, wherein the display is configured to provide information feedback to the user at least one of prior to, during, or after a use of the external adjustment device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16)
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8. The external adjustment device of 7, further comprising a feedback system configured to provide a status of the external adjustment device to a user.
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17. An external adjustment device, for non-invasively adjusting an adjustable implant, the external adjustment device comprising:
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one or more rotatable magnets configured to generate a rotating magnetic field to non-invasively change a dimension of the adjustable implant; a power source comprising at least one of an internal power source and an external power source; a motor coupled to a drive system, wherein the drive system is operatively coupled to the one or more rotatable magnets, and wherein the drive system is configured to translate rotation of the motor into rotation of the one or more rotatable magnets; and a distraction control and a retraction control, wherein the distraction control and the retraction control are configured such that activation of the distraction control causes the one or more rotatable magnets to rotate in at least one of a first direction and a second direction, and wherein the retraction control is configured such that activation of the retraction control causes the one or more rotatable magnets to rotate in the other of the first direction and the second direction. - View Dependent Claims (18, 19, 20)
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Specification