Surface treated medical implant devices

Patent metadata

Field	Value
Publication number	US-11865014-B2
Application number	US-202117494287-A
Country	US
Kind code	B2
Filing date	Oct 5, 2021
Priority date	Aug 14, 2017
Publication date	Jan 9, 2024
Grant date	Jan 9, 2024

Abstract

A surgical implant having a surface treatment which contains primary cavities and secondary cavities. The primary cavities are larger than the secondary cavities and the primary cavities have an average length ranging from 20-500 micrometers. The surface treatment includes recasted material adjacent to a plurality of the primary cavities.

First claim

The invention claimed is:

1. A method for stabilizing a spine comprising the steps of:
providing a surgical implant comprising:
an implant body sized to be implanted in a patient and adapted to be in contact with a bone of the patient, the implant body having a surface treated outer surface, the outer surface containing a plurality of primary cavities and a plurality of secondary cavities smaller than the primary cavities,
wherein the outer surface comprises recasted material adjacent to the primary cavities;
wherein the recasted material has an average height of 1-100 micrometers, the primary cavities have an average depth of 19-499 micrometers from a surface of the implant, and the secondary cavities have an average depth of 5 nanometers to 10 micrometers.
positioning the surgical implant on a portion of the spine.

2. The method of claim 1 , wherein the primary cavities have an average length ranging from 20-500 micrometers.

3. The method of claim 1 , wherein the recasted material is adjacent to at least 80% of the primary cavities, and wherein the recasted material encircles the entire perimeters of at least 50% of the primary cavities.

4. The method of claim 1 , wherein, the primary and secondary cavities are laser-formed cavities.

5. The method of claim 1 , wherein one or more of the primary cavities is formed of two or more conjoined spherical portions.

6. The method of claim 1 , wherein the surgical implant is a spinal implant selected from a group consisting of: an expandable spacer, a plate and spacer system, an implant with a screw system, an occipito-cervico-thoracic stabilization system, a cervico-thoracic stabilization system, and a plate system.

7. A method for stabilizing a spine comprising the steps of:
providing a surgical implant comprising:
an implantable body formed at least in part of a metal sized and configured to be inserted in a disc space, the body having an upper surface and a lower surface, wherein at least one of the upper surface and the lower surface includes a surface treatment which contains primary cavities and secondary cavities, the primary cavities being larger than the secondary cavities and the primary cavities having an average length ranging from 20-500 micrometers,
wherein the surface treatment includes recasted material adjacent to a plurality of the primary cavities,
wherein the recasted material has an average height of 1-100 micrometers, the primary cavities have an average depth of 19-499 micrometers from a surface of the implant, and the secondary cavities have an average depth of 5 nanometers to 10 micrometers;
positioning the surgical implant between adjacent vertebral bodies.

8. The method of claim 7 , wherein the surgical implant is a spinal implant selected from the group consisting of: an expandable spacer, a plate and spacer system, an implant with a screw system, an occipito-cervico-thoracic stabilization system, a cervico-thoracic stabilization system, and a plate system.

9. The method of claim 7 , wherein the implant is at least one selected from the group consisting of an expandable spacer and a plate and spacer system.

10. The method of claim 7 , wherein the implant comprises a spacer and/or a plate, and wherein the surface treatment is present on both the upper surface and the lower surface of the body.

11. A method for stabilizing a spine comprising the steps of:
providing a surgical implant comprising:
an implantable body formed at least in part of a metal sized and configured to be inserted in a disc space, the body comprising an upper surface and a lower surface, wherein at least one of the upper surface and the lower surface comprises a surface treatment which contains primary cavities and secondary cavities, the primary cavities being larger than the secondary cavities,
wherein the surface treatment includes recasted material adjacent to a plurality of the primary cavities,
wherein the recasted material has an average height of 1-100 micrometers, the primary cavities have an average depth of 19-499 micrometers from a surface of the implant, and the secondary cavities have an average depth of 5 nanometers to 10 micrometers; and
positioning the surgical implant between adjacent vertebral bodies.

12. The method of claim 11 , wherein the upper and lower surface comprise the surface treatment.

13. The method of claim 11 , wherein the implantable body is expandable.

14. The method of claim 11 , wherein at least some of the primary cavities are spherical.

15. The method of claim 11 , wherein at least some of the primary cavities are non-spherical.

16. The method of claim 14 , wherein at least some of the primary cavities include two or more conjoined spheres.

17. The surgical implant of claim 14 , wherein at least some of the primary cavities are barbell shaped with a bridge.

Assignees

• Globus Medical Inc

Inventors

• Miccio Mark
• Zappacosta Jason

Classifications

• A61F2/4455 Primary

  for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages (intervertebral discs A61F2/442) · CPC title

• A61F2/0077

  Special surfaces of prostheses, e.g. for improving ingrowth (A61F2/30767 takes precedence) · CPC title

• A61F2/30771

  applied in original prostheses, e.g. holes or grooves · CPC title

• A61L27/50

  Materials characterised by their function or physical properties {, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials} · CPC title

• A61L27/56

  Porous materials, {e.g. foams or sponges} · CPC title