Non-invasive device for synchronizing chest compression and ventilation parameters to residual myocardial activity during cardiopulmonary resuscitation
US9259543B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2011 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Jul 14, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/30
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for improving the cardiac output of a patient who is suffering from pulseless electrical activity or shock and yet still displays some myocardial wall motion including sensing myocardial activity to determine the presence of residual left ventricular pump function having a contraction or ejection phase and a filling or relaxation phase. In such cases, a compressive force is repeatedly applied to the chest based on the sensed myocardial activity such that the compressive force is applied during at least some of the ejection phases and is ceased during at least some of the relaxation phases to permit residual cardiac filling, thereby enhancing cardiac output and organ perfusion. Also incorporated may be a logic circuit capable of utilizing multiple sensing modalities and optimizing the synchronization pattern between multiple phasic therapeutic modalities and myocardial residual mechanical function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.