Implantable lead-based sensor powered by piezoelectric transformer
US7203551B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2003 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Jan 14, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36542
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In general, the invention is directed to an IMD having a piezoelectric transformer to power a lead-based sensor. The IMD powers the piezoelectric transformer with a low amplitude signal. The piezoelectric transformer serves to convert the voltage level of the low amplitude signal to a higher voltage level to drive the sensor produced by a battery in the IMD to voltage levels appropriate for IMD operation. A piezoelectric transformer offers small size and low profile, as well as operational efficiency, and permits the IMD to transmit a low amplitude signal to a remote sensor deployed within an implantable lead. In addition, the piezoelectric transformer provides electrical isolation that reduces electromagnetic interference among different sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.