Screw tower and rod reduction tool
US11439444B1 · kind B1 · utility
0Cited by
447References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2021 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Jul 22, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3983
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system includes a screw tower, an instrument, and a housing. The instrument includes a driver shaft extendable longitudinally through the screw tower, and a threaded sleeve mounted on a proximal portion of the driver shaft. The housing includes one or more retention members coupleable to the screw tower, and a threaded button threadably coupleable to the threaded sleeve. The threaded sleeve is rotatable about a longitudinal axis to urge the driver shaft longitudinally relative to the screw tower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.