Patents
US 10413333 B2: System and method for spinal fixation via a trans-facet pedicle screw assembly
- Granted
- 2019-09-17
- Filed
- 2017-10-04 application 15724827
- Type
- Utility · 14 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A spinal fixation device includes a bone screw, a tulip-shaped seat, a rod seat, and a washer. The bone screw comprises a spherical head and a threaded elongated body extending along a first direction. The tulip-shaped seat comprises a bottom portion that has a through-opening shaped and dimensioned to receive the bone screw so that an inner surface of the bottom portion engages the spherical head of the bone screw and prevents the bone screw from passing entirely through the through-opening, while the spherical head remains polyaxially rotatable within the bottom portion of the tulip-shaped seat. The rod seat sits within and engages the inner surface of the tulip-shaped seat and the rod seat comprises a semispherical bottom that is shaped and dimensioned to engage the spherical head of the bone screw while the spherical head remains polyaxially rotatable within the bottom portion of the tulip-shaped seat. The washer is ring-shaped and comprises a through-opening shaped and dimensioned to receive the threaded elongated body of the bone screw and an upper portion shaped and dimensioned to snappably-engage an outer surface of the tulip-shaped seat.
Source: PVGPATDIS, file of 2026-04-10 (ipg190917.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| SPINEFRONTIER, INC 25 patents | US company or organization | Malden, MA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Jeremy Crossgrove | Brookline, MA | 14 | PVGPATDIS, file of 2026-04-10 | |
| Michael Emery | Windham, NH | 3 | PVGPATDIS, file of 2026-04-10 | |
| Jacob R. Lubinski | Beverly, MA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Lin Yin | Watertown, MA | 14 | PVGPATDIS, file of 2026-04-10 | |
| Kingsley R. Chin | Fort Lauderdale, FL | 46 | Person page FUZZY medium confidence | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61B | Diagnosis; surgery; identification | A61B17/7064 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2020-10-05 | Assignment Assignment of assignor's interest | SPINEFRONTIER, INC signed 2019-07-01 | KIC VENTURES, LLC MALDEN, MA | 53972/737 | 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.