PROSTHETIC IMPLANT FOR BALL AND SOCKET JOINTS AND METHOD OF USE

• US 20130218282A1
• Filed: 02/08/2013
• Published: 08/22/2013
• Est. Priority Date: 02/08/2012
• Status: Abandoned Application

• Current Assignee: 4WEB LLC
• Original Assignee: 4WEB LLC
• Inventors: Hunt, Jessee
• Application Number:
  US13/762,825
• Publication Number:
  US 20130218282A1
• Time in Patent Office: Days
• US Class Current: 623/19.11
• 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: A61F 2/2803 for mandibular reconstruction temporo-mandibular joints A61F2/3099; bone plates for the jaw A61B17/8071
• CPC Class Codes: A61F 2/30 Joints
• CPC Class Codes: A61F 2/30907 Nets or sleeves applied to surface of prostheses or in cement
• CPC Class Codes: A61F 2/3094 Designing or manufacturing processes
• CPC Class Codes: A61F 2/32 for the hip
• CPC Class Codes: A61F 2/3601 for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices non-prosthetic internal fixation devices for the femoral head or neck A61B17/74
• CPC Class Codes: A61F 2/40 for shoulders
• CPC Class Codes: A61F 2/447 substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
• CPC Class Codes: A61F 2/4611 of spinal prostheses
• CPC Class Codes: A61F 2002/2835 Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
• CPC Class Codes: A61F 2002/30153 rectangular
• CPC Class Codes: A61F 2002/30156 triangular
• CPC Class Codes: A61F 2002/30158 trapezoidal
• CPC Class Codes: A61F 2002/30179 X-shaped
• CPC Class Codes: A61F 2002/30273 pyramidal
• CPC Class Codes: A61F 2002/30275 tetrahedral, i.e. having a triangular basis
• CPC Class Codes: A61F 2002/3028 polyhedral different from parallelepipedal and pyramidal
• CPC Class Codes: A61F 2002/30281 wedge-shaped
• CPC Class Codes: A61F 2002/30593 hollow
• CPC Class Codes: A61F 2002/30599 : stackable
• CPC Class Codes: A61F 2002/30841 : Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
• CPC Class Codes: A61F 2002/30914 : Details of the mesh structure, e.g. disposition of the woven warp and weft wires
• CPC Class Codes: A61F 2002/3092 : having an open-celled or open-pored structure
• CPC Class Codes: A61F 2002/30943 : using mathematical models
• CPC Class Codes: A61F 2002/30952 : using CAD-CAM techniques or NC-techniques
• CPC Class Codes: A61F 2002/30953 : using a remote computer network, e.g. Internet
• CPC Class Codes: A61F 2002/30957 : using a positive or a negative model, e.g. moulds
• CPC Class Codes: A61F 2002/30962 : using stereolithography
• CPC Class Codes: A61F 2002/30968 : Sintering
• CPC Class Codes: A61F 2002/3097 : using laser
• CPC Class Codes: A61F 2310/00017 : Iron- or Fe-based alloys, e.g. stainless steel
• CPC Class Codes: A61F 2310/00023 : Titanium or titanium-based alloys, e.g. Ti-Ni alloys
• CPC Class Codes: A61F 2310/00029 : Cobalt-based alloys, e.g. Co-Cr alloys or Vitallium
• CPC Class Codes: A61F 2310/00047 : Aluminium or Al-based alloys
• CPC Class Codes: A61F 2310/00179 : Ceramics or ceramic-like structures
• CPC Class Codes: A61F 2310/00598 : Coating or prosthesis-covering structure made of compounds based on metal oxides or hydroxides
• CPC Class Codes: A61F 2310/00796 : Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite
• CPC Class Codes: A61F 2310/00958 : Coating or prosthesis-covering structure made of bone or of bony tissue
• CPC Class Codes: A61F 2310/0097 : Coating or prosthesis-covering structure made of pharmaceutical products, e.g. antibiotics
• CPC Class Codes: A61F 2310/00976 : Coating or prosthesis-covering structure made of proteins or of polypeptides, e.g. of bone morphogenic proteins BMP or of transforming growth factors TGF
• CPC Class Codes: B33Y 80/00 : Products made by additive manufacturing
• CPC Class Codes: Y10T 29/49826 : Assembling or joining

Abstract

A hip prosthesis includes an acetabular cup and a femoral component comprising a head and a stem, wherein the stem comprises a truss structure, the truss structure comprising a space truss comprising a plurality of planar truss units having a plurality of struts joined at nodes, wherein the web structure is configured to interface with bone tissue.

Claims

1. A ball component of a ball-and-socket joint prosthesis comprising a spherical head and a stem, wherein the stem comprises a web structure, the web structure comprising a space truss comprising a plurality of planar truss units having a plurality of struts joined at nodes, wherein the web structure is configured to interface with bone tissue.

2. The ball component of claim 1, wherein the plurality of planar truss units comprise a planar triangular truss unit having three substantially straight struts and three nodes in a triangular configuration.

3. The ball component of claim 1, wherein the plurality of planar truss units comprise a planar quadrilateral truss unit having four substantially straight struts and four nodes in a quadrilateral configuration.

4. The ball component of claim 1, wherein the plurality of planar truss units are coupled to one another such that a planar truss unit lies in a plane that is not substantially parallel to a plane of an adjacent planar truss unit that shares at least one strut.

5. The ball component of claim 1, wherein a plurality of planar truss units define an exterior surface of the web structure.

6. The ball component of claim 1, wherein the struts that create the space truss comprises a biologic, growth factor or antimicrobial coupled thereto.

7. A ball-and-joint prosthesis comprising:

a cup; and

a ball component comprising a spherical head and a stem, wherein the stem comprises a web structure, the web structure comprising a space truss comprising a plurality of planar truss units having a plurality of struts joined at nodes, wherein the web structure is configured to interface with bone tissue.

8. The prosthesis of claim 7, wherein the plurality of planar truss units comprise a planar triangular truss unit having three substantially straight struts and three nodes in a triangular configuration.

9. The prosthesis of claim 7, wherein the plurality of planar truss units comprise a planar quadrilateral truss unit having four substantially straight struts and four nodes in a quadrilateral configuration.

10. The prosthesis of claim 7, wherein the plurality of planar truss units are coupled to one another such that a planar truss unit lies in a plane that is not substantially parallel to a plane of an adjacent planar truss unit that shares at least one strut.

11. The prosthesis of claim 7, wherein a plurality of planar truss units define an exterior surface of the web structure.

12. The prosthesis of claim 7, wherein the struts that create the space truss comprises a biologic, growth factor or antimicrobial coupled thereto.

13. The prosthesis of claim 7, wherein the prosthesis is configured as a hip prosthesis.

14. The prosthesis of claim 7, wherein the prosthesis is configured as a shoulder prosthesis.

15. A method, comprising:

coupling a ball component to a bone, wherein the ball component comprises a spherical head and a stem, wherein the stem comprises a web structure, the web structure comprising a space truss comprising a plurality of planar truss units having a plurality of struts joined at nodes, wherein the web structure is configured to interface with bone tissue;

coupling a cup to the a subject; and

coupling the ball component to the cup.

16. The method of claim 15, wherein the plurality of planar truss units comprise a planar triangular truss unit having three substantially straight struts and three nodes in a triangular configuration.

17. The method of claim 15, wherein the plurality of planar truss units comprise a planar quadrilateral truss unit having four substantially straight struts and four nodes in a quadrilateral configuration.

18. The method of claim 15, wherein the plurality of planar truss units are coupled to one another such that a planar truss unit lies in a plane that is not substantially parallel to a plane of an adjacent planar truss unit that shares at least one strut.

19. The method of claim 15, wherein a plurality of planar truss units define an exterior surface of the web structure.

20. The method of claim 15, wherein the struts that create the space truss comprises a biologic, growth factor or antimicrobial coupled thereto.

21. The method of claim 15, wherein the prosthesis is used as a hip prosthesis.

22. The method of claim 15, wherein the prosthesis is used as a shoulder prosthesis.

23-25. -25. (canceled)