Truss implant

• US 8,430,930 B2
• Filed: 12/17/2009
• Issued: 04/30/2013
• Est. Priority Date: 12/18/2008
• Status: Active Grant

• Current Assignee: 4WEB LLC
• Original Assignee: 4-Web Incorporated
• Inventors: Hunt, Jessee
• Primary Examiner(s): Robert, Eduardo C
• Assistant Examiner(s): CARTER, TARA ROSE E
• Application Number:
  US12/640,825
• Publication Number:
  US 20100161061A1
• Time in Patent Office: 1,230 Days
• Field of Search: 606246-249, 606/86.A, 606/90, 606/105, 623 1711- 1716
• US Class Current: 623/17.11
• CPC Class Codes: A61B 17/025 Joint distractors
• CPC Class Codes: A61B 17/1604 Chisels; Rongeurs; Punches; Stamps
• CPC Class Codes: A61B 17/56 Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
• CPC Class Codes: A61B 17/58 for osteosynthesis, e.g. bone plates, screws , setting implements or the like A61B17/14, A61B17/16 take precedence
• CPC Class Codes: A61B 17/68 Internal fixation devices , including fasteners and spinal fixators, even if a part thereof projects from the skin bone staples A61B17/0642
• CPC Class Codes: A61F 2/28 Bones joints A61F2/30
• 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 2/2846 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 Class Codes: A61F 2/30767 Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
• CPC Class Codes: A61F 2/30771 applied in original prostheses, e.g. holes or grooves
• 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 2/36 Femoral heads ; Femoral endoprostheses
• CPC Class Codes: A61F 2/38 for elbows or knees
• CPC Class Codes: A61F 2/40 for shoulders
• CPC Class Codes: A61F 2/4202 for ankles
• CPC Class Codes: A61F 2/4225 for feet, e.g. toes
• CPC Class Codes: A61F 2/4455 for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages intervertebral discs A61F2/442
• 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 2002/2817 : Bone stimulation by chemical reactions or by osteogenic or biological products for enhancing ossification, e.g. by bone morphogenetic or morphogenic proteins [BMP] or by transforming growth factors [TGF]
• 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 2002/30899 : Protrusions pierced with apertures
• CPC Class Codes: A61F 2002/30909 : Nets
• 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 2002/4628 : with linear motion along or rotating motion about an axis transverse to the instrument axis or to the implantation direction, e.g. clamping
• CPC Class Codes: A61F 2210/0076 : multilayered, e.g. laminated structures
• CPC Class Codes: A61F 2230/0063 : Three-dimensional shapes
• CPC Class Codes: A61F 2310/00011 : Metals or alloys
• 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 70/00 : Materials specially adapted for additive manufacturing
• CPC Class Codes: B33Y 80/00 : Products made by additive manufacturing

Abstract

In various embodiments, an implant for interfacing with a bone structure includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue. In some embodiments, a method is provided that includes accessing an intersomatic space and inserting an implant into the intersomatic space. The implant includes a web structure including a space truss. The space truss includes two or more planar truss units having a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue.

Claims

1. An implant comprising:

an implant body comprising one or more contact faces configured to be disposed at or near a bony structure; and

a truss structure coupled to at least one of the contact faces, wherein the truss structure is configured to be disposed adjacent the bony structure during use, wherein the truss structure comprises two or more struts extending from the contact face, away from an interior of the implant defined, in part by one or more of the contact faces, and wherein two or more of the struts define an opening configured to enable bone through growth through the opening.

2. The implant of claim 1, wherein the implant body comprises at least two opposing contact faces, and wherein two or more of the opposing contact faces comprise a truss structure extending from the contact face, away from an interior of the implant defined, in part by one or more of the contact faces.

3. The implant of claim 1, wherein the truss structure comprises one or more space trusses.

4. The implant of claim 1, wherein the truss structure comprises one or more triangular shaped space trusses.

5. The implant of claim 1, wherein the truss structure comprises one or more pyramidal shaped space trusses.

6. The implant of claim 1, wherein the truss structure comprises one or more planar trusses.

7. The implant of claim 6, wherein at least one of the planar trusses comprises at least two strut members each comprising one end to the contact face, and another end coupled to the other of the strut members at a vertex located away from the contact surface.

8. The implant of claim 1, wherein the truss structure comprises a web structure.

9. The implant of claim 1, wherein the truss structure is configured to be pressed into the bony structure such that the contact face is in contact or near contact with the bony structure.

10. The implant of claim 1, wherein the implant comprises a fusion cage configured to fix the relative position of two adjacent boney structures.

11. The implant of claim 1, wherein at least one of the struts comprises a biologic, growth factor or antimicrobial coupled thereto.

12. A method comprising:

slitting at least a portion of a bony structure to form one or more slits extending from a face of the bony structure into the bony structure; and

inserting at least a portion of a truss structure of an implant into at least one of the slits, wherein the implant comprises;

an implant body comprising one or more contact faces configured to be disposed at or near the bony structure; and

the truss structure coupled to at least one of the contact faces, wherein the truss structure is configured to be disposed adjacent the bony structure during use, wherein the truss structure comprises two or more struts extending from the contact face, away from an interior of the implant defined, in part by one or more of the contact faces, and wherein two or more of the struts define an opening configured to enable bone through growth through the opening.

13. The method of claim 12, wherein slitting comprises cutting one or more slits into the bony structure in a pattern complementary to the arrangement of two or more struts extending from the contact surface.

14. The method of claim 12, wherein the implant body comprises at least two opposing contact faces, and wherein two or more of the opposing contact faces comprise a truss structure disposed thereon.

15. The method of claim 12, wherein the truss structure comprises one or more space trusses.

16. The method of claim 12, wherein the implant comprises a fusion cage configured to fix the relative position of two adjacent boney structures.

17. The method of claim 12, wherein at least one of the struts comprises a biologic, growth factor or antimicrobial coupled thereto.

18. A method, comprising:

inserting an implant adjacent boney structure of a human, wherein the implant comprises;

an implant body comprising one or more contact faces configured to be disposed at or near the bony structure; and

a truss structure coupled to at least one of the contact faces, wherein the truss structure is configured to be disposed adjacent the bony structure during use, wherein the truss structure comprises two or more struts extending from the contact face, away from an interior of the implant defined, in part by one or more of the contact faces, and wherein two or more of the struts define an opening configured to enable bone through growth through the opening.

19. An implant comprising:

an implant body comprising one or more contact faces configured to be disposed at or near a bony structure; and

a truss structure coupled to at least one of the contact faces, wherein the truss structure is configured to be disposed adjacent the bony structure during use, wherein the truss structure comprises two or more struts extending from the contact face, and wherein two or more of the struts define an opening configured to enable bone through growth through the opening;

wherein the implant comprises a dynamic intervertebral implant configured to couple two adjacent vertebrae and configured to facilitate motion between the two adjacent vertebrae.

20. A method comprising:

slitting at least a portion of a bony structure to form one or more slits extending from a face of the bony structure into the bony structure; and

inserting at least a portion of a truss structure of an implant into at least one of the slits, wherein the implant comprises;

an implant body comprising one or more contact faces configured to be disposed at or near the bony structure; and

the truss structure coupled to at least one of the contact faces, wherein the truss structure is configured to be disposed adjacent the bony structure during use, wherein the truss structure comprises two or more struts extending from the contact face, and wherein two or more of the struts define an opening configured to enable bone through growth through the opening;

wherein the implant comprises a dynamic intervertebral implant configured to couple two adjacent vertebrae and configured to facilitate motion between the two adjacent vertebrae.