Shock treatment systems and methods
US7210480B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2002 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Jun 12, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2016/0033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
According to the invention, methods and devices for increasing cardiopulmonary circulation induced by chest compression and decompression when performing cardiopulmonary resuscitation are provided. According to one method, a pressure responsive inflow valve is coupled to a patient's airway. Chest compressions and chest decompressions are performed. During chest decompression the inflow valve prevents respiratory gases from entering the lungs until a certain negative intrathoracic pressure level is exceeded at which time the one inflow valve opens. In this way, the inflow valve assists in increasing the magnitude and duration of negative intrathoracic pressure during decompression to enhance the amount of blood flow into the heart and lungs. Further, the patient is supplied with a pressurized respiratory gas through the inflow valve when the inflow valve opens to ventilate the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.