Systems and methods for assessing and exploiting concurrent cathodal and anodal capture using an implantable medical device
US9002455B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2012 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Jan 17, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7242
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Techniques are provided for use by an implantable medical device for assessing and controlling concurrent anodal/cathodal capture. In one example, the device delivers bipolar pacing stimulus while sensing a bipolar intracardiac electrogram (IEGM) and while adjusting a magnitude of the pacing stimulus. The device analyzes the bipolar IEGM signals to detect an indication of activation representative of concurrent anodal and cathodal capture. Preferably, the pulse magnitude is set relative to the anodal/cathodal capture threshold based upon clinician programming in response to the needs of the patient. In this manner, concurrent anodal and cathodal capture can be selectively activated or deactivated based on clinician instructions received from a device programmer or other external programming device. Techniques exploiting both bipolar and unipolar IEGM signals to assess and control concurrent anodal/cathodal capture are also described. Techniques for use with quad-pole leads to achieve dual-site or quad-site capture are also set forth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.