LOW FRICTION RESURFACING IMPLANT

• US 20110082548A1
• Filed: 10/05/2010
• Published: 04/07/2011
• Est. Priority Date: 10/07/2009
• Status: Abandoned Application

• Current Assignee: Zyga Technology, Inc. (Surgalign Holdings, Inc.)
• Original Assignee: Zyga Technology, Inc. (Surgalign Holdings, Inc.)
• Inventors: Stassen, David, Assell, Robert, Beaubien, Brian P.
• Application Number:
  US12/898,285
• Publication Number:
  US 20110082548A1
• Time in Patent Office: Days
• US Class Current: 623/14.12
• CPC Class Codes: A61F 2/30756 Cartilage endoprostheses A61F2/3603 takes precedence
• CPC Class Codes: A61F 2/30767 Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
• CPC Class Codes: A61F 2/30965 Reinforcing the prosthesis by embedding particles or fibres during moulding or dipping
• CPC Class Codes: A61F 2/3872 Meniscus for implantation between the natural bone surfaces
• CPC Class Codes: A61F 2/461 of knees
• CPC Class Codes: A61F 2002/30125 elliptical or oval
• CPC Class Codes: A61F 2002/30131 horseshoe- or crescent- or C-shaped or U-shaped
• CPC Class Codes: A61F 2002/30133 kidney-shaped or bean-shaped
• CPC Class Codes: A61F 2002/3895 unicompartimental
• CPC Class Codes: A61F 2002/4627 with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
• CPC Class Codes: A61F 2002/4635 using minimally invasive surgery
• CPC Class Codes: A61F 2230/0008 elliptical or oval
• CPC Class Codes: A61F 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2230/0015 Kidney-shaped, e.g. bean-shaped
• CPC Class Codes: A61F 2240/001 Designing or manufacturing processes

Abstract

A low friction resurfacing implant system including a first implant component and a second implant component. The first implant component has a first bearing surface. The second implant component has a second bearing surface. The first implant component and the second implant component are each fabricated from a durable material that possesses a low coefficient of friction.

Claims

1. A low friction resurfacing implant system comprising:

a first implant component having a first bearing surface; and

a second implant component having a second bearing surface, wherein the first implant component and the second implant component are each fabricated from a durable material that possesses a low coefficient of friction.

2. The low friction resurfacing implant system of claim 1, wherein the first bearing surface and the second bearing surface each comprise a flattened section.

3. The low friction resurfacing implant system of claim 1, wherein the first implant component and the second implant component have a similar shape but are substantially mirror images of each other.

4. The low friction resurfacing implant system of claim 1, wherein the first implant component and the second implant component are both shaped to accommodate passage of an anterior cruciate ligament through the knee joint.

5. The low friction resurfacing implant system of claim 1, wherein the first implant component is shaped to at least partially conform to a shape of a later femoral condyle, lateral tibial plateau, a medial femoral condyle and a medial tibial plateau.

6. The low friction resurfacing implant system of claim 1, wherein the implant is fabricated from PEEK (Polyetheretherketone), PAEK (polyaryletherketone), PEK (polyetherketone), PEKK (polyetherketoneketone), PEKEKK (polyetherketoneetherketoneketone), PEEKK (polyetheretherketoneketone), PAEEK (polyaryletheretherketone) or combinations thereof.

7. The low friction resurfacing implant of claim 2, and further comprising at least one additive selected from the group consisting of fillers, additives, nanocomposites, glass and carbon fibers.

8. A method a resurfacing a joint with an implant, wherein the method comprises:

providing a low friction resurfacing implant system comprising a first implant component and a second implant component, wherein the first implant component has a first bearing surface, wherein the second implant component has a second bearing surface and wherein the first implant component and the second implant component are each fabricated from a durable material that possesses a low coefficient of friction;

9. The method of claim 8, and further comprising fabricating the first bearing surface and the second bearing surface with a flattened section.

10. The method of claim 8, and further comprising forming the first implant component and the second implant component with a similar shape but in substantially mirror images of each other.

11. The method of claim 8, and further comprising forming the first implant component and the second implant component with a shape to accommodate passage of an anterior cruciate ligament through the knee joint.

12. The method of claim 8, and further comprising forming the first implant component with a shape to at least partially conform to a shape of a later femoral condyle, lateral tibial plateau, a medial femoral condyle and a medial tibial plateau.

13. The method of claim 8, and further comprising fabricating the implant from PEEK (Polyetheretherketone), PAEK (polyaryletherketone), PEK (polyetherketone), PEKK (polyetherketoneketone), PEKEKK (polyetherketoneetherketoneketone), PEEKK (polyetheretherketoneketone), PAEEK (polyaryletheretherketone) or combinations thereof.

14. The method of claim 8, and further comprising forming the implant with at least one additive selected from the group consisting of fillers, additives, nanocomposites, glass and carbon fibers.

15. The method of claim 8, wherein the implant is conformable to the bone that the implant is placed adjacent to while not translating therethrough irregularities created by the degenerated portions of the bone.

16. The method of claim 8, and further comprising fabricating the implant from silk proteins and hydroxyapatite.

17. The method of claim 8, and further comprising securing the implant with a fastening device selected from the group consisting of spikes, teeth, screws, tabs, flats folds, adhesives or combinations thereof.

18. The method of claim 8, and further comprising forming the implant with a folded over edge, wherein the folded over edge comprises at least one aperture formed therein.

19. The method of claim 8, and further comprising forming at least one aperture in the implant.

20. An implant insertion system comprising:

a delivery cannula having an internal passage extending at least partially therethrough;

an elongate pusher tool capable of slidably engaging the delivery cannula through the internal passage; and

a low friction resurfacing implant system comprising;

a first implant component having a first bearing surface; and

a second implant component having a second bearing surface, wherein the first implant component and the second implant component are each fabricated from a durable material that possesses a low coefficient of friction, wherein the first implant component and the second implant component have a height and a width that are less than a height and a width of the internal passage.

21. The implant insertion system of claim 20, wherein the first implant component and the second implant component are placed in a stacked configuration with the first bearing surface adjacent the second bearing surface.

22. The implant insertion system of claim 20, wherein at least one of the first implant component and the second implant component comprises an engagement mechanism that is capable of engaging the elongate pusher tool to retain the at least one of the first implant component and the second implant component in a desired relationship with respect to the elongate pusher tool.