Implant with hole having porous structure for soft tissue fixation

Patent metadata

Field	Value
Publication number	US-11865004-B2
Application number	US-202217889797-A
Country	US
Kind code	B2
Filing date	Aug 17, 2022
Priority date	Jun 2, 2017
Publication date	Jan 9, 2024
Grant date	Jan 9, 2024

Abstract

Disclosed herein are an implant with an attachment feature and a method for attaching to the same. The implant may include a cavity with a porous layer disposed within a non-porous layer wherein the non-porous layer defines a chamber. The chamber may receive and confine liquefiable material and direct liquefiable material to permeate through the porous layer. A method of attaching a device to the implant may include liquefying a liquefiable portion of the device and allowing the liquefied material to interdigitate with the second layer and then solidify to prevent pullout.

First claim

The invention claimed is:

1. A method of attaching a liquefiable material to an implant comprising the steps of:
positioning the liquefiable material in a chamber through an opening of the chamber, the chamber being disposed in a cavity of the implant and defined by a first non-porous layer with a second porous layer disposed within the chamber; and
securing the liquefiable material to the implant by allowing the liquefiable material to interdigitate with the second layer in a liquid state and then solidify to prevent pullout of the liquefiable material from the implant.

2. The method of claim 1 , wherein the liquefiable material is a portion of a device such that the securing step prevents pullout of the device from the implant.

3. The method of claim 2 , wherein the step of positioning the liquefiable material includes placing a distal end of the device comprising the liquefiable material in the chamber through the opening, the liquefiable material being in a solid state and applying any of heat energy and ultrasonic energy to transition the liquefiable material from a solid to a liquid state.

4. The method of claim 3 , wherein at least a portion of the first layer is shaped to direct permeation of the liquefied material into the second layer.

5. The method of claim 1 , wherein the first layer includes a feature projecting into the chamber, the feature being at least partially surrounded by a portion of the second layer such that the feature directs the liquefied material into the portion of the second layer.

6. The method of claim 5 , wherein the feature includes at least one angled side surface directed towards the portion of the second layer.

7. The method of claim 1 , wherein the chamber includes an open passageway extending along an axis from the opening towards an opposing wall, the second layer surrounding the open passageway about the axis.

8. The method of claim 1 , wherein the step of positioning the liquefiable material includes the step of positioning a device including the liquefiable material.

9. The method of claim 8 , wherein the device is any of a suture anchor, bone anchor and a second implant.

10. The method of claim 1 , wherein the chamber is shaped according to any of a cylinder, sphere, cuboid, cube, cone and pyramid.

11. The method of claim 1 , wherein the first and second layers are integral to the implant such that the chamber is inseparable from the implant.

12. A method of attaching soft tissue to an implant comprising the steps of:
positioning the soft tissue in a chamber through an opening of the chamber, the chamber being disposed in a cavity of the implant and defined by a first non-porous layer with a second porous layer disposed within the chamber; and
securing the soft tissue to the implant by allowing the soft tissue to permeate into the second layer to prevent pullout of the soft tissue from the implant.

13. The method of claim 12 , wherein at least a portion of the first layer is shaped to direct the permeation of the soft tissue into the second layer.

14. The method of claim 12 , wherein the first layer includes a feature projecting into the chamber, the feature being at least partially surrounded by a portion of the second layer such that the feature directs the soft tissue into the portion of the second layer.

15. The method of claim 14 , wherein the feature includes at least one angled side surface directed towards the portion of the second layer.

16. The method of claim 12 , wherein the chamber includes an open passageway extending along an axis from the opening towards an opposing wall, the second layer surrounding the open passageway about the axis.

17. The method of claim 12 , wherein the chamber is shaped according to any of a cylinder, sphere, cuboid, cube, cone and pyramid.

18. The method of claim 12 , wherein the first and second layers are integral to the implant such that the chamber is inseparable from the implant.

19. The method of claim 12 , wherein at least one dimension of the chamber measured parallel to the opening is substantially the same or greater than the opening.

Assignees

• Howmedica Osteonics Corp

Inventors

• Froster Kevin
• Gruczynski Mark
• Fox Amber
• Nessler Joseph Peter

Classifications

• 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

• A61B17/0401 Primary

  Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors (A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811) · CPC title

• A61B17/06166

  Sutures (suture materials A61L17/00; manufacture of artificial threads D01D; treatment of threads D06M) · CPC title

• A61B17/68

  Internal fixation devices {, including fasteners and spinal fixators, even if a part thereof projects from the skin (bone staples A61B17/0642)} · CPC title

• A61B17/866

  Material or manufacture · CPC title