Porous Interbody Spacer for Spinal Fusion with 150-600 Micron Pores, 400-1,200 MPa Stiffness
Summary
The USPTO published patent application US20260096904A1 for a porous interbody spacer designed for spinal fusion procedures. The implant features a body formed of osteoconductive material with stiffness between 400 MPa and 1,200 MPa and pores averaging 150 to 600 microns in size, enabling osteocyte bridging and bone growth within the pores. Inventors are Peter Halverson and David Hawkes; application was filed December 11, 2025.
What changed
The USPTO published patent application US20260096904A1 for a porous interbody spacer used in spinal fusion procedures. The invention specifies an implant body made from osteoconductive materials, such as titanium or titanium alloys, with stiffness between 400 MPa and 1,200 MPa and an average pore size of 150 to 600 microns. These parameters are designed to allow osteocytes to bridge the pores and experience proper compressive loading to stimulate bone formation within the implant.
Medical device manufacturers developing interbody spacers or spinal fusion implants should review the published claims to assess potential infringement risks and freedom-to-operate considerations. Orthopedic and spine surgery device companies may find the disclosed stiffness and pore-size ranges relevant to their own product development and patent strategies.
What to do next
- Review patent claims for freedom-to-operate analysis
- Assess IP portfolio implications for spinal fusion device programs
Archived snapshot
Apr 10, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
POROUS INTERBODY SPACER
Application US20260096904A1 Kind: A1 Apr 09, 2026
Inventors
Peter Halverson, David Hawkes
Abstract
Orthopedic implants, particularly interbody spacers, have a combination of correct pore size and stiffness/flexibility. When the implants have the proper pore size and stiffness, osteocytes are able to properly bridge the pores of the implant and then experience a proper compressive load to stimulate the bone cells to form bone within the pores. An implant includes a body formed of an osteoconductive material and having a stiffness of between 400 megapascals (MPa) and 1,200 MPa. Additionally, the body includes a plurality of pores having an average size of between 150 microns and 600 microns. The pores permit the growth of bone therein. The body is formed of packs of coils which may be formed using an additive manufacturing process and using traditional orthopedic implant materials such as titanium and titanium alloys while still achieving desired stiffness and pore sizes of the implants. Other implementations are described.
CPC Classifications
A61F 2/447 A61F 2/0077 A61F 2/4455 A61F 2002/0081 A61F 2002/30146 A61F 2002/30149 A61F 2002/30153 A61F 2002/30154 A61F 2002/30289 A61F 2002/30566 A61F 2002/30568 A61F 2002/30593 A61F 2002/30784 A61F 2002/3092 A61F 2002/3093 A61F 2002/3097 A61F 2002/4495 A61F 2310/00023 A61F 2310/00131
Filing Date
2025-12-11
Application No.
19417169
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