Acoustic switch and apparatus and methods for using acoustic switches within a body
US6628989B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2000 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Mar 17, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/0651
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implant for insertion or implantation within a body includes an electrical circuit for performing one or more commands when the implant is activated, an energy storage device, and a switch coupled to the electrical circuit and the energy storage device. An acoustic transducer is coupled to the switch, the acoustic transducer being activatable upon acoustic excitation by an external acoustic energy source for closing the switch to allow current flow from the energy storage device to the electrical circuit. The one or more commands includes measuring a physiological parameter with a biosensor coupled to the electrical circuit, or controlling a therapeutic device coupled to the electrical circuit. The therapeutic device or biosensor may be activated for a predetermined time or until the switch is opened in response to another acoustic excitation of the acoustic transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.