Devices and methods for bone alignment, stabilization and distraction

• US 8,870,965 B2
• Filed: 08/19/2010
• Issued: 10/28/2014
• Est. Priority Date: 08/19/2009
• Status: Active Grant

• Current Assignee: Illuminoss Medical, Inc.
• Original Assignee: Illuminoss Medical, Inc.
• Inventors: Rabiner, Robert A., O'Leary, Anthony W., Weiss, Arnold-Peter C., Bainbridge, Lionel C., Chang, Narissa Y.
• Primary Examiner(s): Isabella, David
• Assistant Examiner(s): SCHILLINGER, ANN M
• Application Number:
  US12/859,680
• Publication Number:
  US 20110046746A1
• Time in Patent Office: 1,531 Days
• Field of Search: 623 1711- 1716, 623 2367- 237
• US Class Current: 623/23.47
• CPC Class Codes: A61B 17/56 Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
• 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 17/8095 Wedge osteotomy devices
• CPC Class Codes: A61B 17/8811 characterised by the introducer tip, i.e. the part inserted into or onto the bone
• CPC Class Codes: A61B 17/8833 Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means
• CPC Class Codes: A61B 2017/00411 actuated by application of energy from an energy source outside the body
• CPC Class Codes: A61B 2017/883 Means for indicating hardening of bone cement
• CPC Class Codes: A61F 2002/30583 filled with hardenable fluid, e.g. curable in-situ
• CPC Class Codes: A61F 2002/4696 optical
• CPC Class Codes: A61F 2210/0085 hardenable in situ, e.g. epoxy resins
• CPC Class Codes: A61N 5/0601 Apparatus for use inside the body
• CPC Class Codes: A61N 5/062 Photodynamic therapy, i.e. excitation of an agent

Abstract

An embodiment of a bone stabilization and distraction system of the present disclosure includes a light-sensitive liquid; a light source for providing light energy; a light-conducting fiber for delivering the light energy from the light source to cure the light-sensitive liquid; a delivery catheter having a proximal end in communication with the light-conducting fiber and the light-sensitive liquid, an inner lumen for passage of the light-conducting fiber, and an inner void for passage of the light-sensitive liquid; and an expandable body removably engaging a distal end of the delivery catheter, wherein the expandable body has a closed end, a sealable open end, an inner cavity for passage of the light-sensitive liquid, an external surface and an internal surface, and wherein the expandable body has an insertion depth with a fixed dimension, a width with a fixed dimension, and a thickness with a changeable dimension.

Claims

1. A bone implant system comprising:

a light-sensitive liquid;

a light source for providing light energy;

a light-conducting fiber for delivering the light energy from the light source to cure the light-sensitive liquid;

a delivery catheter having a proximal end in communication with the light-conducting fiber and the light-sensitive liquid, an inner lumen for passage of the light-conducting fiber, and an inner void for passage of the light-sensitive liquid; and

an expandable body removably attached to a distal end of the delivery catheter,

wherein the expandable body has a closed end, a sealable open end, an inner cavity for passage of the light-sensitive liquid, an external surface and an internal surface,

wherein the expandable body has an insertion depth with a fixed dimension, a width with a fixed dimension, and a distraction thickness with a changeable dimension, wherein the insertion depth is a length between the sealable end and the closed end of the expandable body,

wherein entry of the light-sensitive liquid into the inner cavity of the expandable body changes the dimension of the distraction thickness, without changing the dimension of the insertion depth and the dimension of the width of the expandable body; and

wherein, when the light-sensitive liquid is cured inside the inner cavity of the expandable body, the expandable body is removable from the delivery catheter to form a rigid photodynamic bone implant to provide distraction and support to the bone.

2. The system of claim 1 wherein the light-sensitive liquid is a liquid monomer that polymerizes at a wavelength between about 400 nanometers and about 470 nanometers.

3. The system of claim 1 wherein the light source provides light energy having a wavelength between about 400 nanometers and about 470 nanometers.

4. The system of claim 1 wherein the light-conducting fiber is an optical fiber.

5. The system of claim 1 wherein the expandable body is manufactured from a non-compliant conformable material.

6. The system of claim 1 wherein at least a portion of the external surface of the expandable body includes at least one textured element.

7. A bone implant system comprising:

a light-sensitive liquid;

a light source for providing light energy;

a light-conducting fiber for delivering the light energy from the light source to cure the light-sensitive liquid;

a delivery catheter having a proximal end in communication with the light-conducting fiber and the light-sensitive liquid, an inner lumen for passage of the light-conducting fiber, and an inner void for passage of the light-sensitive liquid; and

an expandable body removably attached to a distal end of the delivery catheter,

wherein the expandable body has a proximal end, a distal end, and an inner cavity for passage of the light-sensitive liquid,

wherein entry of the light-sensitive liquid into the inner cavity of the expandable body inflates the expandable body, and changes a dimension of a distraction thickness of the expandable body, without changing a dimension of an insertion depth and a dimension of a width of the expandable body, wherein the insertion depth is a length between the proximal end and the distal end of the expandable body,

wherein the inflated expandable body is tapered such that a first distraction thickness of the expandable body at the proximal end is greater than the second distraction thickness at the distal end, and

wherein the light-sensitive liquid entering into the inner cavity of the expandable body changes at least the second distraction thickness of the expandable body.

8. The system of claim 7 wherein entry of the fluid into the inner cavity of the expandable body changes the dimension of the device thickness without changing the dimension of the insertion depth and the dimension of the width.

9. The system of claim 7 wherein the light-sensitive liquid is a liquid monomer that polymerizes at a wavelength between about 400 nanometers and about 470 nanometers.

10. The system of claim 7 wherein the light source provides light energy having a wavelength between about 400 nanometers and about 470 nanometers.

11. The system of claim 7 wherein the light-conducting fiber is an optical fiber.

12. The system of claim 7 wherein the expandable body is manufactured from a non-compliant conformable material.

13. The system of claim 7 wherein at least a portion of the external surface of the expandable body includes at least one textured element.