Devices for enhancing the fatigue and mechanical properties of bone cement and other biomaterials

Patent metadata

Field	Value
Publication number	US-9877837-B2
Application number	US-201615266003-A
Country	US
Kind code	B2
Filing date	Sep 15, 2016
Priority date	Sep 15, 2015
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

A device includes a bone cement or a biomaterial and a mesh structure impregnated with the bone cement or the biomaterial. The mesh structure reinforces the bone cement or the biomaterial and reinforces the material's fatigue properties. The mesh structure may be made of a shape memory alloy.

First claim

What is claimed is:

1. A surgical method, comprising:
inserting a device including a mesh structure impregnated with a bone cement or a biomaterial into a bone canal, wherein the mesh structure comprises a shape memory alloy;
drying, curing, or sintering the mesh structure;
inserting an implant into the bone canal after inserting the device; and
in response to an exothermic polymerization reaction:
expanding the mesh structure into the implant.

2. The method as recited in claim 1 , wherein the bone canal is a femoral canal and the implant is a hip implant.

3. The method as recited in claim 1 , wherein the shape memory alloy is Nitinol.

4. The method as recited in claim 1 , wherein the biomaterial is polymethyl methacrylate (PMMA).

5. The method as recited in claim 1 , wherein the bone cement is calcium phosphate.

6. The method as recited in claim 1 , wherein the bone cement is tricalcium phosphate.

7. The method as recited in claim 1 , wherein the bone cement is hydroxyapatite.

8. The method as recited in claim 1 , wherein the mesh structure is a three-dimensional spacer fabric.

9. The method as recited in claim 1 , wherein the device is shaped into a sleeve.

10. A surgical method, comprising:
inserting a device including a mesh structure impregnated with a bone cement or a biomaterial into a bone canal, wherein the mesh structure comprises a shape memory alloy;
drying, curing, or sintering the mesh structure;
inserting an implant into the bone canal after inserting the device; and
inserting additional bone cement or additional biomaterial into a gap between the mesh structure and the implant.

11. The method as recited in claim 10 , wherein the shape memory alloy is Nitinol.

12. The method as recited in claim 10 , wherein the biomaterial is polymethyl methacrylate (PMMA).

13. The method as recited in claim 10 , wherein the bone cement is calcium phosphate.

14. The method as recited in claim 10 , wherein the bone cement is tricalcium phosphate.

15. The method as recited in claim 10 , wherein the bone cement is hydroxyapatite.

16. The method as recited in claim 10 , wherein the mesh structure is a three-dimensional spacer fabric.

17. The method as recited in claim 10 , wherein the device is shaped into a sleeve.

Assignees

• Mx Orthopedics Corp
• Arthrex Inc

Inventors

• Palmer Matthew
• Fonte Matthew
• Devaney Robert

Classifications

• A61L27/12

  Phosphorus-containing materials, e.g. apatite · CPC title

• A61L27/06

  Titanium or titanium alloys · CPC title

• A61F2310/00353

  Bone cement, e.g. polymethylmethacrylate or PMMA · 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

• A61F2210/0071

  thermoplastic · CPC title