Method and apparatus for ECG gated ventilation
US5188098A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1991 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Nov 4, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Method and apparatus for maximizing the volume of blood pumped by a heart and maximizing ventilation/perfusion matching in the lungs, wherein the lungs are ventilated by a respirator in response to a control signal, are shown to include a series of monitors for generating a heart signal such as an electrocardiogram, a lung air flow rate signal and a lung air pressure signal and a controller, connected to receive these signals and to the respirator. The controller monitors the signals and generates the control signal when the heart signal is representative of a desired in point in the pumping cycle of the heart and the other signals indicate desired flow rate and pressure in the lungs. In a preferred embodiment, the control signal is generated so as to maximize the augmentation of the pumping of the heart and to minimize the trapping of air in the lungs. Using the present invention, blood being pumped from the heart is assisted by the ventilation of the lungs. It is preferred for the controller to include a series of threshold detectors for detecting when the signals exceed threshold levels. It is especially preferred for the detector to detect a point during ventricular contraction…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.