Expandable fusion device with interdigitating fingers
US11684484B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2021 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Nov 7, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0009
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Expandable spinal fusion devices, systems, and methods of using them are provided, and they can be inserted in a subject in a collapsed state through a small surgical corridor, and the expand cephalocaudal only, transverse only, or in both directions, in which direction of expansion can also be obtained independently, if desired, after the insertion. These inventions are valuable in reducing risk and surgical complexity, allowing for an on-the-fly selection of a desirable width footprint, a desired control of height expansion through a gradual cephalocaudal expansion, and a desired control of the alignment of the adjacent vertebral bodies. Devices, systems, and methods are also offered to provide a desired control of the contact area desired between the device and the upper and lower vertebral endplates achieved, for example, using an interdigitated endplate system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.