System for informational magnetic feedback in adjustable implants
US11246694B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2015 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Sep 13, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/001
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
According to some embodiments, systems and methods are provided for non-invasively detecting the force generated by a non-invasively adjustable implantable medical device and/or a change in dimension of a non-invasively adjustable implantable medical device. Some of the systems include a non-invasively adjustable implant, which includes a driven magnet, and an external adjustment device, which includes one or more driving magnets and one or more Hall effect sensors. The Hall effect sensors of the external adjustment device are configured to detect changes in the magnetic field between the driven magnet of the non-invasively adjustable implant and the driving magnet(s) of the external adjustment device. Changes in the magnetic fields may be used to calculate the force generated by and/or a change in dimension of the non-invasively adjustable implantable medical device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.