Method and apparatus for detection of lead conductor anomalies using dynamic electrical parameters
US9827416B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 28, 2014 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Aug 28, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3925
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus to detect anomalies in the conductors of leads attached to implantable medical devices based on the dynamical electrical changes these anomalies cause. In one embodiment, impedance is measured for weak input signals of different applied frequencies, and a conductor anomaly is detected based on differences in impedance measured at different frequencies. In another embodiment, a transient input signal is applied to the conductor, and an anomaly is identified based on parameters related to the time course of the voltage or current response, which is altered by anomaly-related changes in capacitance and inductance, even if resistance is unchanged. The method may be implemented in the implantable medical device or in a programmer used for testing leads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.