Method and apparatus for supplying a gas to a body
US4612928A · kind A · utility
Inventors
Key dates
| Filing date | Aug 28, 1984 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Aug 28, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2016/0021
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus which minimizes the amount of oxygen needed to maintain a specific oxygen level in the blood of an individual can be constructed so as to use a transducer and other circuit components to obtain a first series of pulses or signals corresponding to the individual's breathing. A divider or counter processes the signals or pulses of the first series to create a second series of pulses or signals corresponding to periodic pulses or signals of the first series. The pulses or signals of the second series are used to periodically open a valve to deliver oxygen to the individual at about the start of the person's periodic breathing cycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.