Non-invasive cardiac monitoring system and method with communications interface
US6162180A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1998 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Dec 28, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36557
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for determining a patient's cardiac output in a non-invasive manner and transmitting cardiac output data to a remote host processor, a communications system, or a local output device is disclosed. A non-invasive cardiac monitoring approach utilizes an implantable medical device coupled to an oxygen sensor. The oxygen sensor provides venous oxygen saturation data to the implantable medical device. An oxygen consumption unit produces oxygen consumption data using air exhaled by a patient. A processing unit calculates a cardiac output result in real-time using the venous oxygen saturation data, the oxygen consumption data, and arterial oxygen saturation data assumed to be about 100% or acquired using a sensor external to the patient. The implantable medical device may transmit the venous oxygen saturation data to the processing unit using electromagnetic signals or acoustic signals. The implantable medical device may be a pacemaker, a pacemaker/cardioverter/defibrillator (PCD), an oxygen sensing device, or an implantable hemodynamic monitor. The processing unit may store the cardiac output data/result for a period of time and/or communicate the cardiac output resul…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.