Graft collection and containment system for bone defects

Patent metadata

Field	Value
Publication number	US-11026795-B2
Application number	US-201715681032-A
Country	US
Kind code	B2
Filing date	Aug 18, 2017
Priority date	Nov 15, 2010
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

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:
a first shell member defining a first portion of an inner sleeve and a first portion of an outer sleeve to form a first bone graft collecting space therebetween;
a second shell member defining a second portion of the inner sleeve and a second portion of the outer sleeve to form a second bone graft collecting space therebetween, the first portion of the inner sleeve and the first portion of the outer sleeve of the first shell being openable and closable relative to the second portion of the inner sleeve and the second portion of the outer sleeve of the second shell such that, in a closed configuration, a contour of the outer sleeve substantially matches a contour of an exterior of a bone about which the device is to be employed.

2. The device of claim 1 , wherein the first and second shell members are coupled to one another via a bioresorbable suture.

3. The device of claim 1 , wherein the first and second shell member are coupled to one another via a hinge such that the first and second shell members are movable relative to one another between an open configuration and the closed configuration.

4. The device of claim 3 , wherein the hinge is a bonded flexible PLA strip.

5. The device of claim 1 , wherein the inner sleeve is formed of a flexible material.

6. The device of claim 5 , wherein the flexible material is polycaprolactone.

7. The device of claim 1 , further comprising a tab extending from one of the proximal and distal ends of the outer sleeve.

8. The device of claim 7 , wherein the tab includes an opening extending therethrough, the opening sized and shaped to receive a fixation element therethrough for fixing the outer sleeve to the bone.

9. The device of claim 1 , further comprising a flexible cuff attached to one of the proximal and distal ends of the outer sleeve configured to extend about an end of a portion of bone to which the device is to be coupled.

10. The device of claim 1 , wherein, when the body is in the closed configuration, a contour of the inner sleeve substantially matches a contour of the medullary canal of a bone in which the device is to be employed.

11. 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.

12. 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.

13. The device of claim 1 , wherein the first shell member further defines a first longitudinal portion joining the first portions of the inner sleeve and the outer sleeve and the second shell member further defines a second longitudinal portion joining the second portions of the inner sleeve and the outer sleeve, the first and second longitudinal portions defining a distance between the inner sleeve and the outer sleeve.

Assignees

• Depuy Synthes Products Inc

Inventors

• Mikhail George
• Hamel Ross

Classifications

• A61F2002/30909

  Nets · 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

• A61B10/02

  Instruments for taking cell samples or for biopsy {(A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48)} · CPC title

• A61F2310/00179

  Ceramics or ceramic-like structures · CPC title

• A61F2002/4685

  by means of vacuum · CPC title