Patents
US 12667461 B1: Sheet based triply periodic minimal surface implants for promoting osseointegration and methods for producing same
- Granted
- 2026-06-30
- Filed
- 2022-10-05 application 17938251
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Provided herein are implants and methods for producing implants. In at least one embodiment, the implants include sheet-based, triply periodic, minimal surface (TPMS) portions. According to one embodiment, the TPMS portions include a gyroid architecture that provides for improved osseointegration and mechanical performance over previous implants due to novel ratios of porosity to compressive strength, among other features. In one or more embodiments, the gyroid architecture is organized into unit cells that demonstrate anisotropic mechanical performance along an insertion direction. In various embodiments, the present methods include novel selective laser melting (SLM) techniques for forming the TPMS portions of implants in a manner that reduces defect formation, thereby improving compressive performance and other implant properties.
Source: PTBLXML, file of 2026-06-30 (ipgb20260630.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| RESTOR3D, INC. 44 patents | US company or organization | Durham, NC | RESTOR3D, INC. State business registration EXACT high confidence: identical full name and state RESTOR3D, Inc. Form D issuer EXACT high confidence: identical full name and state | PTBLXML, file of 2026-06-30 |
| DUKE UNIVERSITY 1,375 patents | US company or organization | Durham, NC | Duke University College or university EXACT high confidence: identical full name and state DUKE UNIVERSITY Nonprofit EXACT high confidence: identical full name and state | PTBLXML, file of 2026-06-30 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Andrew Todd Miller | Durham, NC | PTBLXML, file of 2026-06-30 | ||
| Matthew Rexrode | Durham, NC | 14 | PTBLXML, file of 2026-06-30 | |
| Cambre Kelly | Durham, NC | 17 | PTBLXML, file of 2026-06-30 | |
| Ken Gall | Durham, NC | 16 | PTBLXML, file of 2026-06-30 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61F | Filters implantable into blood vessels; prostheses; devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents; orthopaedic, nursing or contraceptive devices; fomentation; treatment or protection of eyes or ears; bandages, dressings or absorbent pads; first-aid kits | A61F2/3094 | PTBLXML, file of 2026-06-30 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2024-06-07 | Security interest Security interest Security interest | RESTOR3D, INC. signed 2024-06-04 CONFORMIS, INC. signed 2024-06-04 IMATX, INC. signed 2024-06-04 | TRINITY CAPITAL INC., AS ADMINISTRATIVE AGENT PHOENIX, AZ | 67679/713 | PASDL, file of 2026-10-15 |
| 2022-10-24 | Assignment Assignment of assignor's interest | MILLER, ANDREW TODD signed 2020-01-07 REXRODE, MATTHEW signed 2020-01-07 | RESTOR3D, INC. DURHAM, NC | 61518/630 | PASDL, file of 2026-10-15 |
| 2022-10-24 | Assignment Assignment of assignor's interest | GALL, KEN signed 2021-04-20 KELLY, CAMBRE signed 2021-04-20 | DUKE UNIVERSITY DURHAM, NC | 61518/508 | PASDL, file of 2026-10-15 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.