Implantable cardiac device for managing the progression of heart disease and method
US6741885B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2001 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Jul 30, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36514
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable cardiac device detects a progression or regression in heart disease such as congestive heart failure. An activity sensor and a respiration sensor generate raw signals indicative of the patient's activity level and respiration level. Degradation or improvement of the patient's activity and respiration over a predetermined time corresponds to an indication of the progression or regression of the heart disease. A processor coupled to the sensors is programmed to process the raw sensor signals over the predetermined time and stores the processed sensor signals in a memory having a data storage area. A telemetry circuit coupled to the memory is configured to transmit the stored sensor signals to an external monitor for subsequent display. The processor further controls pacing of the heart, adjusts pacing therapy responsive to the process signals, and process the raw respiration signals when the patient is in a number of different active states.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.