Micro-charge ICD lead testing method and apparatus
US10252069B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2016 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Nov 21, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3956
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods for detecting lead anomalies by detecting overcurrent conditions caused by the delivery of high voltage test pulses configured to minimize patient sensation. Patient sensation is minimized by limiting the total charge delivered in either a positive or negative test pulse by limiting duration, and/or by cancelling nerve activations by delivery of an opposite phase cancellation pulse as part of a biphasic test pulse. Embodiments include high-speed H-bridge switches, and micro-coulomb test capacitors to control total charge and duration. Embodiments detect anomalies when an overcurrent circuit detects a current above a threshold passing through an electrode that is not directly energized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.