Automated impedance measurement of an implantable medical device
US6978171B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2002 |
| Grant date | Dec 20, 2005 |
| Priority date | — |
| Expiry date | Feb 21, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36185
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention automates impedance measurements between pairs of electrodes that are associated with a lead of an implanted device. Apparatus comprises a communications module and a processor, in which the processor communicates with the implanted device over a communications channel. The processor instructs the implanted device to perform a voltage measurement that is associated with a stimulation pulse between the pair of electrodes. The implanted device sends the voltage measurement to the apparatus over the communications channel from which the apparatus determines the impedance between the pair of electrodes. The apparatus initiates an impedance measurement for each pair of electrodes along the lead. With a plurality of leads, the apparatus repeats the impedance measurements for electrode pairs of the other leads. The embodiment also supports measuring a current between pairs of electrodes. The impedance measurements and current measurements are displayed to a clinician on a user interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.