Minimally Invasive Actuable Bone Fixation Devices

• US 20060264950A1
• Filed: 05/15/2006
• Published: 11/23/2006
• Est. Priority Date: 05/18/2005
• Status: Active Grant

• Current Assignee: Arthrex Incorporated
• Original Assignee: Sonoma Orthopedic Products Incorporated (Arthrex Incorporated)
• Inventors: Nelson, Charles L., Mazur, Kai U., Saravia, Heber
• Granted Patent: US 7,846,162 B2
• Time in Patent Office: Days
• US Class Current: 606/916
• CPC Class Codes: A61B 17/7208 Flexible pins, e.g. ENDER pins
• CPC Class Codes: A61B 17/7241 the nail having separate elements through which screws pass
• CPC Class Codes: A61B 17/7266 with fingers moving radially outwardly
• CPC Class Codes: A61B 17/7275 with expanding cylindrical parts
• CPC Class Codes: A61B 17/7291 for small bones, e.g. in the foot, ankle, hand or wrist
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable or resorptive

Abstract

Apparatus for bone reinforcement, fixation and treatment of diseased or fractured bones including a supporting structure optionally coated with therapeutic agent is provided. The supporting structure or device may be collapsible upon deployment at the surgical site, and include fixation features such as anchors to securely position in place once deployed. Bone cement or other material may be provided to alternatively secure the positioned supporting structure for treatment. A lockable bone fixation device is described that comprises: a sleeve adapted to be positioned in a space formed in a bone; a guidewire adapted to guide movement of the sleeve; and an actuable lock adapted to secure the sleeve within the space of the bone from an end of the device.

Claims

1. A lockable bone fixation device comprising:

a. a sleeve adapted to be positioned in a space formed in a bone;

b. a guidewire adapted to guide movement of the sleeve; and

c. an actuable lock adapted to secure the sleeve within the space of the bone from an end of the device.

2. The lockable bone fixation device of claim 1 wherein the sleeve is flexible.

3. The lockable bone fixation device of claim 1 wherein the sleeve has apertures.

4. The lockable bone fixation device of claim 1 wherein the sleeve is expandable.

5. The lockable bone fixation device of claim 1 wherein the sleeve is bioabsorbable.

6. The lockable bone fixation device of claim 1 wherein the sleeve is removable from the space within the bone.

7. The lockable bone fixation device of claim 1 wherein the sleeve is adapted to access the space within the bone through an access aperture formed in a bony protuberance of the bone.

8. The lockable bone fixation device of claim 1 further comprising a second sleeve adapted to fit within the first sleeve.

9. The lockable bone fixation device of claim 8 wherein the second sleeve has a retractable interdigitation process.

10. The lockable bone fixation device of claim 9 wherein the sleeve has an aperture along its length through which the retractable interdigitation process is adapted to engage bone.

11. The lockable bone fixation device of claim 9 wherein the retractable interdigitation process is adapted to engage bone when actuated by the sleeve.

12. The lockable bone fixation device of claim 1 further comprising a cantilever adapted to retain the lockable bone fixation device within the space.

13. The lockable bone fixation device of claim 1 wherein the sleeve is adapted to be expanded and collapsed within the space by a user.

14. The lockable bone fixation device of claim 1 wherein the device is adapted to be delivered by a catheter.

15. The lockable bone fixation device of claim 1 wherein a distal end of the device has a blunt obdurator surface.

16. The lockable bone fixation device of claim 1 wherein a distal end of the device has a guiding tip.

17. The lockable bone fixation device of claim 1 wherein the device is adapted to receive external stimulation to provide therapy to the bone.

18. The lockable bone fixation device of claim 1 wherein the device is adapted to receive composite material when the device is disposed within a lumen.