Adjustable magnetic devices and methods of using same
US11123107B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2019 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Apr 5, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/681
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system further includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.