Ambulatory ventricular function monitor
US4633881A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1982 |
| Grant date | Jan 6, 1987 |
| Priority date | — |
| Expiry date | Jul 1, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/2019
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ambulatory ventricular function anaylzer system is provided. The ambulatory ventricular function analyzer system is carried by a garment worn by a cardiac patient and includes ECG electrodes, a main left ventricular probe detector, and a background lung probe detector for providing diagnostically useful information while the patient goes about the normal activities of daily life. An information processing sub-system including a microprocessor responds to the electrode signal and to the probe signals and provides composite data representative of the ECG activity, the background lung time-activity, the left ventricular time-activity, and an R-wave histogram averaged over multiple cardiac cycles. The averaged data is sequentially sotred over a long time interval on magnetic tape in plural categories representing premature ventricular contraction, postpremature ventricular contraction, and normal ventricular contraction for subsequent display on a computer-based graphics display for study by a cardiac specialist. The main left ventricular function probe detector includes an array of cadmium telluride crystals mounted in a Pb housing having a parallel hole Pb collimator. The detector…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.