Graft collection and containment system for bone defects

Patent metadata

Field	Value
Publication number	US-9782259-B2
Application number	US-201414463404-A
Country	US
Kind code	B2
Filing date	Aug 19, 2014
Priority date	Nov 15, 2010
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

A device for containing bone graft material comprises a body including an inner sleeve extending longitudinally from a proximal end to a distal end and an outer sleeve surrounding the inner sleeve and extending longitudinally from a proximal end to a distal end such that a bone graft collecting space is formed therebetween.

First claim

What is claimed is:

1. A device for containing bone graft material, comprising:
an inner sleeve extending longitudinally from a proximal end to a distal end; and
an outer sleeve surrounding the inner sleeve and extending longitudinally from a proximal end to a distal end such that a bone graft collecting space is formed therebetween, the proximal end of the of the inner sleeve extending proximally past the proximal end of the outer sleeve and the distal end of the inner sleeve extending distally past the distal end of the outer sleeve, the proximal and distal ends of the inner sleeve being sized and shaped for insertion into a medullary canal of a bone within which the device is to be employed.

2. The device of claim 1 , wherein at least one of the inner and outer sleeves includes a plurality of openings extending therethrough sized to permit fluids to pass therethrough while preventing the passage of bone graft material therethrough.

3. The device of claim 1 , wherein one of the inner and outer sleeves includes a plurality of slits extending through a portion of a circumference thereof to permit the device to flex along a longitudinal axis thereof.

4. The device of claim 1 , wherein a contour of the inner sleeve is selected to substantially match a contour of a medullary canal of a bone within which the device is to be employed.

5. The device of claim 1 , wherein a contour of the outer sleeve is selected to substantially match a contour of an exterior surface of a bone within which the device is to be employed.

6. The device of claim 1 , wherein one of the proximal and distal ends of the inner sleeve includes a longitudinal slit extending therethrough to separate the one of the proximal and distal ends into opposed jaws biased toward a spaced configuration in which the jaws extend across a space larger than a medullary canal within which they are to be received, the jaws being flexibly movable toward one another to an insertion configuration in which the one of the proximal and distal ends is sized for insertion into a medullary canal so that, upon release within a medullary canal the jaws create a friction fit therewith.

7. The device of claim 1 , wherein a proximal tip of the proximal end is rounded to facilitate insertion into a medullary canal.

8. The device of claim 1 , wherein the outer sleeve includes a reinforced section extending longitudinally along a portion of a length thereof, the reinforced section having a wall thickness greater than that of a remaining portion of the outer sleeve.

9. The device of claim 8 , wherein the outer sleeve includes a slot extending through the reinforced section sized to receive a fixation element therethrough.

10. The device of claim 1 , wherein the inner and outer sleeves are integrally formed and connected to one another via a plurality of ribs extending longitudinally therebetween.

11. The device of claim 1 , wherein the inner and outer sleeves are removably connected to one another.

12. The device of claim 1 , wherein a lumen of the inner sleeve is sized and shaped to accommodate an intramedullary rod therein.

Assignees

• Depuy Synthes Products Llc
• Depuy Synthes Products Inc

Inventors

• Mikhail George
• Hamel Ross

Classifications

• A61F2002/30235

  tubular, e.g. sleeves · CPC title

• A61F2/2846 Primary

  Support means for bone substitute or for bone graft implants, e.g. membranes or plates for covering bone defects (nets or sleeves applied to surface of endoprostheses A61F2/30907; bone plates A61B17/80; bone regeneration in dental surgery A61C8/0006) · CPC title

• A61F2310/00179

  Ceramics or ceramic-like structures · CPC title

• A61F2002/30948

  using computerized tomography, i.e. CT scans · CPC title

• A61F2002/30784

  Plurality of holes · CPC title