Interspinous process device and method

An interspinous process device is configured for placement between adjacent spinous processes on a subject's spine. The device includes a housing configured for mounting to a first spinal process, the housing having a lead screw fixedly secured at one end thereof. A magnetic assembly is at least partially disposed within the housing and configured for mounting to a second spinal process. The magnetic assembly includes a hollow magnet configured for rotation within the magnetic assembly, the hollow magnet comprising a threaded insert configured to engage with the lead screw. An externally applied magnetic field rotates the hollow magnet in a first direction or a second, opposite direction. Rotation of the hollow magnet in the first direction causes telescopic movement of the magnetic assembly out of the housing (i.e., elongation) and rotation in the second direction causes telescopic movement of the magnetic assembly into the housing (i.e., shortening).

Adjustable implant and method of use

A system includes an adjustable implant configured for implantation internally within a subject and includes 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 includes an external adjustment device configured for placement on or adjacent to the skin of the subject having 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 encoder. 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. Drive control circuitry is configured to receive an input signal from the encoder.

Interspinous Process Device and Method

An interspinous process device is configured for placement between adjacent spinous processes on a subject's spine. The device includes a housing configured for mounting to a first spinal process, the housing having a lead screw fixedly secured at one end thereof. A magnetic assembly is at least partially disposed within the housing and configured for mounting to a second spinal process. The magnetic assembly includes a hollow magnet configured for rotation within the magnetic assembly, the hollow magnet comprising a threaded insert configured to engage with the lead screw. An externally applied magnetic field rotates the hollow magnet in a first direction or a second, opposite direction. Rotation of the hollow magnet in the first direction causes telescopic movement of the magnetic assembly out of the housing (i.e., elongation) and rotation in the second direction causes telescopic movement of the magnetic assembly into the housing (i.e., shortening). 1. An interspinous process device configured for placement between adjacent spinous processes on a subject's spine comprising:a housing configured for mounting to a first spinal process, the housing comprising a lead screw fixedly secured at one end thereof;a magnetic assembly at least partially disposed within the housing and configured for mounting to a second spinal process, the magnetic assembly comprising a hollow magnet configured for rotation within the magnetic assembly, the hollow magnet comprising a threaded insert configured to engage with the lead screw; andwherein an externally applied magnetic field rotates the hollow magnet, wherein rotation of the hollow magnet in a first direction effectuates telescopic movement of the magnetic assembly out of the housing.2. The interspinous process device of claim 1 , wherein rotation in a second claim 1 , opposite direction causes telescopic movement of the magnetic assembly into the housing.3. The interspinous process device of claim 1 , further comprising a seal ...

Adjustable implant and method of use

A system includes an adjustable implant configured for implantation internally within a subject and includes 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 includes an external adjustment device configured for placement on or adjacent to the skin of the subject having 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 encoder. 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. Drive control circuitry is configured to receive an input signal from the encoder.

MAGNETIC IMPLANTS WITH IMPROVED ANATOMICAL COMPATIBILITY

A distraction system includes a first distraction device having a first adjustable portion and a first distraction rod configured to telescope within the first adjustable portion, the first adjustable portion having contained therein a first rotatable magnetic assembly mechanically coupled to a first screw configured to axially telescope the first distraction rod. A second distraction device is provided and includes a second adjustable portion and a second distraction rod configured to telescope within the second adjustable portion, the second adjustable portion having contained therein a second rotatable magnetic assembly mechanically coupled to a second screw configured to axially telescope the second distraction rod. An adjustable joint connects one end of the first adjustable portion to one end of the second adjustable portion. 1. A distraction system comprising:a first distraction device comprising a first adjustable portion and a first distraction rod configured to telescope within the first adjustable portion, the first adjustable portion having contained therein a first rotatable magnetic assembly mechanically coupled to a first screw configured to axially telescope the first distraction rod;a second distraction device comprising a second adjustable portion and a second distraction rod configured to telescope within the second adjustable portion, the second adjustable portion having contained therein a second rotatable magnetic assembly mechanically coupled to a second screw configured to axially telescope the second distraction rod; andan adjustable joint connecting one end of the first adjustable portion to one end of the second adjustable portion.2. The distraction system of claim 1 , wherein the adjustable joint comprises a first interfacing surface coupled to the first adjustable portion and a second interfacing surface coupled to the second adjustable portion claim 1 , and a locking member configured to secure the first interfacing surface to the ...

ADJUSTABLE IMPLANT AND METHOD OF USE

A system includes an adjustable implant configured for implantation internally within a subject and includes 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 includes an external adjustment device configured for placement on or adjacent to the skin of the subject having 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 encoder. 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. Drive control circuitry is configured to receive an input signal from the encoder. 118.-. (canceled)19. A restriction device for implantation within a subject , comprising:an adjustable body having an inner volume extending along a length of the adjustable body and comprising a contact surface configured to engage an outer surface of a lumen of the subject, the adjustable body having a substantially linear configuration and a non-linear configuration;a connector comprising a first connector portion and a second connector portion, the first and second connector portions configured for attachment to one another;an elongated actuating member having a first and second end and extending through the inner volume of the adjustable body, the actuating member secured at its first end to the adjustable body;an actuator comprising a first permanent magnet, the first permanent magnet operatively coupled to the second end of the actuating member, and configured to apply a tension to the actuating member to change the configuration of the contact surface; andan external adjustment device located outside the subject, the external adjustment device comprising at least a first external magnet;wherein ...

ADJUSTABLE IMPLANT AND METHOD OF USE

A system includes an adjustable implant configured for implantation internally within a subject and includes 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 includes an external adjustment device configured for placement on or adjacent to the skin of the subject having 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 encoder. 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. Drive control circuitry is configured to receive an input signal from the encoder. 118-. (canceled)19. A method for detecting slippage of magnetic coupling between an adjustable implant comprising a rotatable magnet and an externally applied magnetic field , the adjustable implant further comprising a drive transmission having a screw and a nut , the method comprising:applying a moving magnetic field to the rotatable magnet of the adjustable implant with an external adjustment device; andmonitoring a characteristic of torque between the rotatable magnet of the adjustable implant and the moving magnetic field, wherein slippage is detected based at least in part on a reversal of torque between the rotatable magnet of the adjustable implant and the moving magnetic field.20. The method of claim 19 , wherein the external adjustment device comprises a first permanent magnet configured to be rotated about a first axis by a motor.21. The method of claim 20 , wherein the monitoring step comprises measuring the current of the motor.22. The method of claim 20 , wherein the external adjustment device comprises a second permanent magnet configured to be rotated about a second axis by the motor.23. ...

ADJUSTABLE IMPLANT AND METHOD OF USE

A system includes an adjustable implant configured for implantation internally within a subject and includes 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 includes an external adjustment device configured for placement on or adjacent to the skin of the subject having 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 encoder. 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. Drive control circuitry is configured to receive an input signal from the encoder. 118.-. (canceled)19. A restriction device for implantation within a subject , comprising:an adjustable body having an inner volume extending along a length thereof and comprising a contact surface configured to engage an outer surface of a lumen of the subject, the adjustable body having a substantially linear configuration and a non-linear configuration;a connector comprising a first connector portion and a second connector portion, the first and second connector portions configured for attachment to one another;an elongate actuating member having a first and second end and extending through the inner volume of the adjustable body, the actuating member secured at its first end to the adjustable body;an actuator coupled to the actuating member and configured to change the configuration of the contact surface in response to activation from outside the subject without penetrating a skin of the subject, wherein activation of the actuator alters a tension on the actuating member.20. The restriction device of claim 19 , wherein the substantially linear configuration is for insertion into the subject.21. The ...

INTERSPINOUS PROCESS DEVICE AND METHOD

An interspinous process device is configured for placement between adjacent spinous processes on a subject's spine. The device includes a housing configured for mounting to a first spinal process, the housing having a lead screw fixedly secured at one end thereof. A magnetic assembly is at least partially disposed within the housing and configured for mounting to a second spinal process. The magnetic assembly includes a hollow magnet configured for rotation within the magnetic assembly, the hollow magnet comprising a threaded insert configured to engage with the lead screw. An externally applied magnetic field rotates the hollow magnet in a first direction or a second, opposite direction. Rotation of the hollow magnet in the first direction causes telescopic movement of the magnetic assembly out of the housing (i.e., elongation) and rotation in the second direction causes telescopic movement of the magnetic assembly into the housing (i.e., shortening). 1. An interspinous process device configured for placement between adjacent spinous processes on a subject's spine , comprising:a housing configured for mounting to a first spinous process, the housing comprising a lead screw fixedly secured at one end thereof;a magnetic assembly configured for mounting to a second spinous process, the magnetic assembly comprising a hollow magnet rotatably disposed therein, the hollow magnet configured to engage with the lead screw wherein a rotation of the hollow magnet in a first direction causes telescopic movement of the magnetic assembly relative to the housing.2. The interspinous process device of claim 1 , wherein rotation of the hollow magnet in the first direction is configured to telescopically move the magnetic assembly out of the housing.3. The interspinous process device of claim 1 , wherein rotation of the hollow magnet in a second direction opposite the first direction claim 1 , is configured to telescopically move the magnetic assembly into the housing.4. The ...

ADJUSTABLE IMPLANT AND METHOD OF USE

A system includes an adjustable implant configured for implantation internally within a subject and includes 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 includes an external adjustment device configured for placement on or adjacent to the skin of the subject having 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 encoder. 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. Drive control circuitry is configured to receive an input signal from the encoder. 1. A method for adjusting an implant system , the implant system including:an adjustable implant, the adjustable implant including an adjustable body having an inner volume extending along a length of the adjustable body and including a contact surface configured to engage an outer surface of a lumen of the subject, the adjustable body including a substantially linear configuration and a non-linear configuration;a connector including a first connector portion and a second connector portion, the first and second connector portions configured for attachment to one another;an elongated actuating member having a first and second end and extending through the inner volume of the adjustable body, the actuating member secured at its first end to the adjustable body;an actuator comprising a first permanent magnet, the first permanent magnet operatively coupled to the second end of the actuating member, and configured to apply a tension to the actuating member to change the configuration of the contact surface; andan external adjustment device adjustment device configured to be located outside the subject in ...

MAGNETIC IMPLANTS WITH IMPROVED ANATOMICAL COMPATIBILITY

A distraction system includes a first distraction device having a first adjustable portion and a first distraction rod configured to telescope within the first adjustable portion, the first adjustable portion having contained therein a first rotatable magnetic assembly mechanically coupled to a first screw configured to axially telescope the first distraction rod. A second distraction device is provided and includes a second adjustable portion and a second distraction rod configured to telescope within the second adjustable portion, the second adjustable portion having contained therein a second rotatable magnetic assembly mechanically coupled to a second screw configured to axially telescope the second distraction rod. An adjustable joint connects one end of the first adjustable portion to one end of the second adjustable portion. 1. A distraction system comprising:an adjustable portion having contained therein a rotatable magnetic assembly, the adjustable portion curved; and a distraction rod coupled to the rotatable magnetic assembly via a lead screw, the distraction rod configured for telescopic movement relative to the adjustable portion.2. The distraction system of claim 1 , comprising a universal joint coupling the lead screw to the rotatable magnetic assembly.3. The distraction system of claim 2 , the universal joint comprising:a first tab and a second tab coupled to the rotatable magnetic assembly; anda third tab and a fourth tab coupled to the lead screw;the first tab and the second tab coupled to the third tab and the fourth tab by a cross, the universal joint configured to transfer torque placed on the magnetic assembly to the lead screw.4. The distraction system of claim 1 , the rotatable magnetic assembly comprising a magnet.5. The distraction system of claim 1 , the rotatable magnetic assembly comprising at least one circumferentially arrayed magnetically permeable element.6. The distraction system of claim 1 , wherein a curve of the adjustable ...

ADJUSTABLE IMPLANT AND METHOD OF USE

A system includes an adjustable implant configured for implantation internally within a subject and includes 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 includes an external adjustment device configured for placement on or adjacent to the skin of the subject having 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 encoder. 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. Drive control circuitry is configured to receive an input signal from the encoder. 118.-. (canceled)19. A method of treating a subject comprising:implanting an implant device configured for implantation internally within a subject, the implant device comprising a housing, a permanent magnet disposed within the housing and configured for rotation about an axis of rotation, the permanent magnet operatively coupled to a drive transmission disposed within the housing and configured to alter an external dimension of the adjustable implant, wherein the drive transmission comprises a lead screw operatively coupled to the permanent magnet of the adjustable implant and a nut moveable along the length of the lead screw, wherein the implant device is configured to be adjusted using a programmable external adjustment device comprising drive control circuitry, a motor, and at least one permanent magnet configured for rotational movement in response to actuation of the motor, wherein the drive control circuitry is configured to receive and store drive instructions, wherein the programmable external adjustment device is configured to adjust the implant device in accordance with the drive instructions ...

ADJUSTABLE MAGNETIC DEVICES AND METHODS OF USING SAME

A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system further includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw. 129-. (canceled)30. A system for noninvasive tensioning , comprising:a rod holder comprising a first end and a second end, and configured to selectively engage with a first rod;a first fastener disposed at said first end, and configured to secure said first rod with respect to said rod holder; anda first magnet component, operably coupled with said first fastener, and configured to apply torque to said first fastener when subjected to a desired magnetic field.31. The system of claim 30 , further comprising:a second fastener disposed at said second end, and configured to secure said first rod with respect to said rod holder; anda second magnet component, operably coupled with said second fastener, and configured to apply torque to said second fastener when subjected to said desired magnetic field.32. The system of claim 30 , wherein said rod holder further comprises one or more of:a first shaft portion configured to selectively engage said first rod, wherein said first shaft portion comprises an opening at said first end; anda second shaft portion configured to selectively engage a second rod, wherein said second shaft portion comprises an ...

ADJUSTABLE MAGNETIC DEVICES AND METHODS OF USING SAME

A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system further includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw. 1. A system comprising:a first pedicle screw;a second pedicle screw separated from the first pedicle screw by a distance; and an outer housing, the outer housing having a threaded shaft secured to one end thereof and extending along an interior portion thereof;', 'an inner shaft, at least a portion of the inner shaft telescopically adjustable within the outer housing; and', 'a hollow magnetic assembly comprising a hollow magnetic element disposed around at least a portion of the threaded shaft, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, with the hollow magnetic assembly rotatably coupled to the second pedicle screw by a rotational coupling;, 'an adjustable rod further comprising'}wherein the hollow magnetic assembly is configured to rotate in response to an externally applied magnetic field and is configured to increase or decrease the distance between the first pedicle screw and the second pedicle screw.2. The system of claim 1 , wherein the hollow magnetic assembly comprises a hollow cylindrical radially-poled magnet.3. The system of claim 2 , wherein the hollow cylindrical radially- ...

ADJUSTABLE MAGNETIC DEVICES AND METHODS OF USING SAME

A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system farther includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw.

Adjustable magnetic devices and methods of using same

A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system further includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw.

ADJUSTABLE MAGNETIC DEVICES AND METHODS OF USING SAME

A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system further includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw. 113.-. (canceled)14. A system comprising:a first pedicle screw having a shank and a head;a second pedicle screw having a shank and a head;a rod placed between the first pedicle screw and the second pedicle screw and contained within a housing; anda magnetic actuator disposed within the housing and associated with one of the first and second pedicle screws, the magnetic actuator comprising a rotatable magnetic element coupled to a bushing, the rotatable magnetic element configured to move relative to the housing in response to an externally applied magnetic field, wherein movement in a first direction frictionally engages the rod between the pedicle screw head and the bushing and wherein movement in a second direction disengages the rod from the pedicle screw head and the bushing.15. The system of claim 14 , wherein the bushing includes a saddle-shaped surface configured to engage the rod.16. The system of claim 14 , wherein the rotatable magnetic element comprises a radially-poled magnet.17. The system of claim 16 , wherein the radially-poled magnet comprises a rare earth magnet.1829.-. (canceled)30. The system of claim 14 , wherein the ...

Method and apparatus for adjusting a gastrointestinal restriction device

A gastrointestinal implant system includes an adjustable restriction device having a contact surface configured for at least partially engaging a surface of a gastrointestinal tract of a mammal. The implant system further includes an implantable interface including a first driving element, the first driving element being moveable and operatively coupled to the adjustable restriction device by an actuator configured to change the dimension or configuration of the contact surface in response to movement of the first driving element. The system also includes an external adjustment device having a second driving element configured to non-invasively engage the first driving element of the implantable interface from a location external to the mammal. In the system, actuation of the second driving element of the external adjustment device produces movement in the first driving element of the implantable interface and results in a change in the dimension or configuration of the contact surface.

Implant system with resonant-driven actuator

A system for securing an implantable apparatus to a mammal includes a mount including a base portion having a plurality of holes dimensioned to receive rotationally-driven fasteners, each fastener comprising a helical portion having a tip configured for tissue penetration, the mount configured to secure the implantable apparatus relative to tissue of the mammal upon driving the fasteners into the tissue. The system further includes a fastening tool configured to rotationally drive the helical portion of the fasteners into the tissue. The mount may be secured to the fascia covering the sternum via a subcutaneous securement method, or it may be attached to the intra-abdominal wall, behind the sternum, or it may be attached to the sternum directly via bone screws or the like.

Adjustable magnetic devices and methods of using same

A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system further includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw.

Adjustable implant and method of use

A system includes an adjustable implant configured for implantation internally within a subject and includes 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 includes an external adjustment device configured for placement on or adjacent to the skin of the subject having 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 encoder. 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. Drive control circuitry is configured to receive an input signal from the encoder.

Interspinous process device and method

An interspinous process device is configured for placement between adjacent spinous processes on a subject's spine. The device includes a housing configured for mounting to a first spinal process, the housing having a lead screw fixedly secured at one end thereof. A magnetic assembly is at least partially disposed within the housing and configured for mounting to a second spinal process. The magnetic assembly includes a hollow magnet configured for rotation within the magnetic assembly, the hollow magnet comprising a threaded insert configured to engage with the lead screw. An externally applied magnetic field rotates the hollow magnet in a first direction or a second, opposite direction. Rotation of the hollow magnet in the first direction causes telescopic movement of the magnetic assembly out of the housing (i.e., elongation) and rotation in the second direction causes telescopic movement of the magnetic assembly into the housing (i.e., shortening).

Adjustable implant and method of use

A system includes an adjustable implant configured for implantation internally within a subject and includes 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 includes an external adjustment device configured for placement on or adjacent to the skin of the subject having 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 encoder. 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. Drive control circuitry is configured to receive an input signal from the encoder.

Adjustable magnetic devices and methods of using same

A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system further includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw.

Spinal distraction system

A spinal distraction system, according to one embodiment, includes an adjustable spinal distraction rod comprising first and second members, the adjustable spinal distraction rod configured for non-invasive elongation of the first and second members. The system includes an anchor rod configured for mounting to a bone of a subject, the anchor rod comprising a threaded portion and a ball disposed at one end thereof and a nut disposed on the threaded portion of the anchor rod the nut having a first contact surface. The system further includes a locking joint having a cup portion configured to receive an end of the first member, the cup portion comprising a second contact surface, wherein tightening of the nut binds the first and second contact surfaces to thereby lock the joint and prevent articulation and wherein the second member is configured for mounting to a second bone of a subject.

Adjustable implant and method of use

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.

Adjustable implant and method of use

A system includes an adjustable implant configured for implantation internally within a subject, the adjustable implant comprising a first permanent magnet configured for rotation about a first axis, the first 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, the external adjustment device comprising a second permanent magnet configured for rotation about a second axis and a third permanent magnet configured for rotation about a third axis different from the second axis; and wherein cooperative rotation of the second permanent magnet about the second axis and rotation of the third permanent magnet about the third axis result in rotation of the first permanent magnet about the first axis.

Adjustable implant and method of use

A system includes an adjustable implant configured for implantation internally within a subject and includes 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 includes an external adjustment device configured for placement on or adjacent to the skin of the subject having 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 encoder. 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. Drive control circuitry is configured to receive an input signal from the encoder.

Adjustable implant and method of use

A system includes an adjustable implant configured for implantation internally within a subject and includes 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 includes an external adjustment device configured for placement on or adjacent to the skin of the subject having 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 encoder. 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. Drive control circuitry is configured to receive an input signal from the encoder.

Skeletal manipulation system

A system for manipulating a portion of the skeletal system of a mammal includes an implant having a first portion and a second portion, the first portion configured for mounting at a first location of the skeletal system and the second portion configured for mounting at a second location of the skeletal system. The system further includes an adjustment device disposed on the implant and configured to apply a biasing force to the skeletal system, the adjustment device including a magnetic element configured for cyclic movement, the magnetic element being operatively coupled to a drive element configured to alter at least one of the distance or the force between the first location and the second location. The system includes an implantable feedback device operatively coupled to the implant that is configured to produce a response that is indicative of a condition of the implant which can be identified non-invasively.

Skeletal manipulation system

A system for manipulating a portion of the skeletal system in the body of a mammal includes an implant having a first portion and a second portion, the first portion configured for coupling to a first location of the skeletal system and the second portion configured for coupling to a second location of the skeletal system. The system includes an adjustment device configured to change at least one of the distance or force between the first location and the second location, the adjustment device having a magnetic element configured for rotation about an axis of rotation, the magnetic element being operatively coupled to a drive element configured to alter at least one of the distance or the force between the first location and the second location. The system also includes an external adjustment device configured to magnetically couple to the adjustment device from a location external to the mammal.

Adjustable magnetic devices and methods of using same

A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system further includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw.

Spinal distraction system

A spinal distraction system includes an adjustable spinal distraction rod having first and second members, the adjustable spinal distraction rod configured for non-invasive elongation of the first and second members. The system includes an anchor rod configured for mounting to a bone of a subject, and a socket coupled to the anchor rod, the socket having a lumen dimensioned to receive an end of a first member, wherein the end of the first member is configured for telescopic sliding movement within the lumen of the socket and wherein the second member is configured for mounting to a second bone of a subject.

Adjustable implant and method of use

A system includes an adjustable implant configured for implantation internally within a subject, the adjustable implant comprising a first permanent magnet configured for rotation about a first axis, the first 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, the external adjustment device comprising a second permanent magnet configured for rotation about a second axis and a third permanent magnet configured for rotation about a third axis different from the second axis; and wherein cooperative rotation of the second permanent magnet about the second axis and rotation of the third permanent magnet about the third axis result in rotation of the first permanent magnet about the first axis.

Skeletal manipulation system

A system for manipulating a portion of the skeletal system in the body of a mammal includes an implant having a first portion and a second portion, the first portion configured for coupling to a first location of the skeletal system and the second portion configured for coupling to a second location of the skeletal system. The system includes an adjustment device configured to change at least one of the distance or force between the first location and the second location, the adjustment device having a magnetic element configured for rotation about an axis of rotation, the magnetic element being operatively coupled to a drive element configured to alter at least one of the distance or the force between the first location and the second location. The system also includes an external adjustment device configured to magnetically couple to the adjustment device from a location external to the mammal.

Adjustable implant system

An adjustable medical system includes an adjustable implant having an adjustable portion configured to the change dimension or orientation of an internal portion of a mammal and a driven portion comprising a magnetically responsive element configured for rotation about an axis of rotation. The system further includes an external adjustment device configured to magnetically couple to the driven portion from a location external to the mammal, the external adjustment device comprising a first permanent magnet configured for rotation about a first axis and a second permanent magnet configured for rotation about a second axis different from the first axis. Cooperative rotation of the first permanent magnet about the first axis and rotation of the second permanent magnet about the second axis result in rotation of the magnetically responsive element about its axis of rotation.

Adjustable implant system

Adjustable magnetic devices and methods of using same

A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system farther includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw.

Adjustable implant and method of use

A system includes an adjustable implant configured for implantation internally within a subject and includes a magnet configured for rotation about an axis of rotation, the magnet operatively coupled to a drive transmission configured to alter a dimension of the adjustable implant. The system includes an external adjustment device configured for placement on or adjacent to the skin of the subject having 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 encoder. Rotation of the at least one magnet of the external adjustment device effectuates rotational movement of the magnet of the adjustable implant and alters the dimension of the adjustable implant Drive control circuitry is configured to receive an input signal from the encoder.

Magnetic implants with improved anatomical compatibility

A distraction system includes a first distraction device having a first adjustable portion and a first distraction rod configured to telescope within the first adjustable portion, the first adjustable portion having contained therein a first rotatable magnetic assembly mechanically coupled to a first screw configured to axially telescope the first distraction rod. A second distraction device is provided and includes a second adjustable portion and a second distraction rod configured to telescope within the second adjustable portion, the second adjustable portion having contained therein a second rotatable magnetic assembly mechanically coupled to a second screw configured to axially telescope the second distraction rod. An adjustable joint connects one end of the first adjustable portion to one end of the second adjustable portion.

Adjustable magnetic devices and methods of using same

A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system farther includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw.