Device for bone adjustment with anchoring function

Patent metadata

Field	Value
Publication number	US-2025039657-A1
Application number	US-202418911299-A
Country	US
Kind code	A1
Filing date	Oct 10, 2024
Priority date	Oct 31, 2008
Publication date	Jan 30, 2025
Grant date	—

Abstract

A method and a device for bone adjustment in a mammal is presented, wherein a device is implanted in the medullar cavity of a bone in the body of said mammal, said device being a device exerting a force to anchoring devices anchored in said bone. The method and device has utility in therapeutic and cosmetic bone adjustments, including the lengthening, reshaping and realigning of bones, for example in the correction of congenital deformations, restorative orthopaedic surgery and the like.

First claim

1 . A device for bone adjustment in a mammal, comprising two or more anchoring devices for attaching to a bone in said mammal, and an adjustment device for exerting force on said anchoring devices to adjust the distance between or orientation of at least two of said anchoring devices, wherein said anchoring devices are configured to expand at least partially perpendicular to a longitudinal direction of said adjustment device wherein said anchoring devices and said adjustment device are configured to be implanted intramedullary in said mammal and wherein said adjustment device is constructed to postoperatively adjust said distance.

2 . The device according to claim 1 , wherein said adjustment is the lengthening of a bone, the healing of a fracture, the changing of a bone angle, the reshaping of a bone, the compression of a bone, the torsion of a bone or a combination thereof.

3 . The device according to claim 1 , wherein said two or more anchoring devices are adapted to engage the bone from the inside of the intramedullar cavity.

4 . (canceled)

5 . The device according to claim 1 , wherein the force exerted by the adjustment device is a longitudinal force, extending the length of the bone.

6 . The device according to claim 1 , wherein the force exerted by the adjustment device is directed to the end portions of the medullar cavity.

7 . The device according to claim 1 , wherein the force exerted by the adjustment device is a longitudinal force, adjusting the angle or curvature of the bone.

8 . The device according to claim 1 , wherein the force exerted by the device applies torque to the bone, adjusting the torsion of the bone along its longitudinal axis.

9 . The device according to claim 1 , wherein said device is flexible.

10 . The device according to claim 1 , wherein the adjustment device comprises a hydraulic device for said bone adjustment, to control the amount of force exerted by the device onto said anchoring devices.

11 . The device according to claim 10 , wherein the hydraulic device comprises a cylinder and piston.

12 . The device according to claim 10 , wherein the hydraulic device comprises a mechanical multi step locking mechanism, locking the hydraulic device in its new position after adjustment.

13 - 26 . (canceled)

27 . The device according to claim 1 , wherein the adjustment device comprises a mechanical device for said bone adjustment.

28 . The device according to claim 28 , wherein the adjustment device is operated by an operation device, such as motor.

29 . The device according to claim 28 , comprising a control device, wherein the operation device is controlled by said control device.

30 . (canceled)

31 . The device according to claim 27 , wherein the mechanical device for said bone adjustment comprises at least one nut and screw.

32 . The device according to claim 27 , wherein the mechanical device for said bone adjustment comprises at least one gearbox.

33 . The device according to claim 27 , wherein the mechanical device for said bone adjustment comprises a servo mechanism or mechanical amplifier.

34 . The device according to claim 1 , wherein the device is adapted for exerting an intermittent and/or oscillating force.

35 . The device according to claim 1 , wherein the device comprises a locking device which allows extension of the device but substantially prevents contraction.

36 - 142 . (canceled)

143 . A device for bone adjustment in a mammal patient, said device comprising:
two or more anchoring devices for attaching to a bone in said mammal, an adjustment device having a longitudinal extension for exerting force on said anchoring devices to adjust the distance between or orientation of at least two of said anchoring devices, wherein at least one of said two or more anchoring devices comprises an expansion member adapted to expand at least partially perpendicular to the anchoring device to engage said bone.

Assignees

• Forsell Peter

Inventors

• Forsell Peter

Classifications

• H04B17/318

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• H04W36/035

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• H04W52/0261

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• H04W52/0229

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• H04W8/183 Primary

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