Combination Photodynamic Devices

• US 20130023876A1
• Filed: 07/19/2012
• Published: 01/24/2013
• Est. Priority Date: 07/19/2011
• Status: Abandoned Application

• Current Assignee: Illuminoss Medical, Inc.
• Original Assignee: Illuminoss Medical, Inc.
• Inventors: Rabiner, Robert A., Rader, Richard Scott
• Application Number:
  US13/553,051
• Publication Number:
  US 20130023876A1
• Time in Patent Office: Days
• US Class Current: 606/63
• CPC Class Codes: A61B 17/7097 Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants disc prostheses made of inflatable chambers or pockets filled with fluid A61F2/441; replacing the nucleus pulposus A61F2002/444
• CPC Class Codes: A61B 17/72 Intramedullary pins, nails or other devices A61B17/744 takes precedence
• CPC Class Codes: A61B 17/7233 with special means of locking the nail to the bone
• CPC Class Codes: A61B 17/7258 with laterally expanding parts, e.g. for gripping the bone
• CPC Class Codes: A61B 17/7275 with expanding cylindrical parts
• CPC Class Codes: A61B 17/7283 with special cross-section of the nail
• CPC Class Codes: A61B 17/74 Devices for the head or neck or trochanter of the femur trochanteric devices connected to the proximal part of an endoprosthetic femoral shaft A61F2/30739; endoprosthetic internal fixation devices for the head or neck of the femur A61F2/3601
• CPC Class Codes: A61B 17/748 with means for adapting the angle between the longitudinal elements and the shaft axis of the femur
• CPC Class Codes: A61B 17/8836 for heating, cooling or curing of bone cement or fluid fillers
• CPC Class Codes: A61B 17/8855 inflatable, e.g. kyphoplasty balloons
• CPC Class Codes: A61B 17/8858 laterally or radially expansible inflatable A61B17/8855
• CPC Class Codes: A61F 2/30724 Spacers for centering an implant in a bone cavity, e.g. in a cement-receiving cavity
• CPC Class Codes: A61F 2/30749 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2/3804 for elbows
• CPC Class Codes: A61F 2002/30579 with mechanically expandable devices, e.g. fixation devices
• CPC Class Codes: A61F 2002/30581 having a pocket filled with fluid, e.g. liquid
• CPC Class Codes: A61F 2002/30583 filled with hardenable fluid, e.g. curable in-situ
• CPC Class Codes: A61F 2002/30754 Implants for interposition between two natural articular surfaces
• CPC Class Codes: A61F 2002/30934 Special articulating surfaces
• CPC Class Codes: A61F 2002/4631 the prosthesis being specially adapted for being cemented
• CPC Class Codes: A61N 2005/0612 : using probes penetrating tissue; interstitial probes
• CPC Class Codes: A61N 5/06 : using light
• CPC Class Codes: A61N 5/062 : Photodynamic therapy, i.e. excitation of an agent

Abstract

Combination photodynamic devices for repair and stabilization of a fractured or a weakened bone are disclosed herein. In an embodiment, a combination photodynamic device includes a load bearing member and one or more conformable members connected to the load bearing member, the conformable member expandable from a deflated state to an inflated state. The load bearing member is designed to reside inside a cavity of fractured or weakened bone and act as internal bone fixation and stabilization device. The conformable member is designed to anchor the load bearing member inside a bone cavity, transform the load bearing member from a flexible state to a rigid state, contribute to fixating and stabilizing a fractured or a weakened bone, and provide longitudinal and rotational stability to a fractured or a weakened bone during the healing process or combinations thereof.

Claims

1. A combination photodynamic device comprising:

at least one load bearing member designed to reside in a cavity of a fractured or weakened bone, the at least one load bearing member acting as an internal bone fixation and stabilization device;

at least one conformable member connected to the at least one load bearing member, the at least one conformable member configured to be expandable from a deflated state to an inflated state to anchor the at least one load bearing member inside the cavity.

2. The device of claim 1, wherein the at least one conformable member is expandable from a deflated state to an inflated state using an expansion fluid.

3. The device of claim 1, wherein the at least one conformable member is a balloon.

4. The device of claim 1, wherein the at least one conformable member is designed to transform the at least one load bearing member from a flexible state for delivery to or removal from the cavity of the bone to a rigid state for implantation within the cavity of the bone.

5. The device of claim 1, wherein the at least one conformable member is detachably or removably attached to the at least one load bearing member.

6. The device of claim 1, wherein the at least one load bearing member has a threaded end so that the at least one load bearing member can be screwed into the bone.

7. The device of claim 1, wherein the at least one load bearing member is an elongated rod or an intramedullary nail.

8. The device of claim 1, wherein the at least one load bearing member is made of a flexible material.

9. The device of claim 1, wherein the at least one load bearing member includes a plurality of nested tubes telescopically slidable relative to one another.

10. The device of claim 1, wherein the at least one load bearing member has a compressible body that can be transformed from a flexible state to a rigid state by a compressive force.

11. The device of claim 1, wherein the at least one load bearing member is transformable between a flexible state and a rigid state by radially expanding the at least one load bearing member using the conformable member placed inside the load bearing member.

12. The device of claim 1, wherein the at least one load bearing member is as at least partially enclosed by the at least one conformable member.

13. The device of claim 1, wherein the at least one load bearing member is adjacent to the at least one conformable member.

14. The device of claim 1, wherein the at least one load bearing member is a flexible patterned tube or a flexible helical spring, and the at least one conformable member is configured to be inserted in the at least one load bearing member and expanded to transform the at least one load bearing member to a rigid state.

15. The device of claim 1, further comprising one or more holes in the at least one load bearing member and/or at least one conformable member for receiving one or more fasteners to secure the device to the bone.

16. The device of claim 1, further comprising a cam structure attached to the at least one load bearing member and configured to act upon the at least one conformable member to increase pressure between the at least one load bearing member containing the cam structure, the at least one conformable member, and/or the weakened or fractured bone to stabilize the load bearing member in the cavity of the bone.

17. The device of claim 1, wherein the at least one load bearing member includes one or more segments.

18. A combination photodynamic device kit comprising:

at least one expansion fluid;

a delivery catheter having an elongated shaft with a proximal end, a distal end, and a longitudinal axis therebetween;

a conformable member releasably engaged to the distal end of the delivery catheter and wherein the delivery catheter has an inner void for passing the at least one expansion fluid into the conformable member; and

a load bearing member, wherein the load bearing member can be engaged with the conformable member.

19. The kit of claim 18, further comprising a plurality of conformable members of different sizes or shapes.

20. A method for bone repair and stabilization comprising:

inserting a load bearing member into a cavity of a fractured or weakened bone;

inserting one or more conformable members into the cavity;

engaging the one or more conformable members with the load bearing member; and

expanding the conformable member with an expansion fluid, thereby anchoring the load bearing member inside the cavity and providing longitudinal and rotational stability to the load bearing member during the healing process.

21. The method of claim 20, wherein the load bearing member is flexible when inserted into the cavity, and becomes rigid upon expanding the conformable member with an expansion fluid.