Geared cam expandable interbody implant and method of implanting same
US10932920B2 · kind B2 · utility
31Cited by
37References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 21, 2018 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | May 11, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4629
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A geared cam expandable spinal implant. Rotational motion of a rotating portion is translated into linear motion of a yoke, which moves geared cams at the distal end of the implant to mate with, and walk along, teeth of corresponding racks. The walking of the gear cam teeth along the rack teeth creates a regular rate of implant expansion, reduces initial excessive expansion force applied to the implant, and provides fine adjustment of the expansion rate and force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.