Intrapulmonary pressure monitoring system
US4813431A · kind A · utility
70Cited by
8References
9Claims
0Family size
Inventor
Key dates
| Filing date | Jul 22, 1987 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Jul 22, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3348
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pressure sensing device hydraulically coupled with a transducer comprising a closed hydraulic system incorporated within an endotracheal tube to monitor intrapulmonary pressure. The tube employs an hydraulic system for conveying pressure data from a distal sensor, on the tube, to a transducer. The sensor and transducer are connected by a liquid-filled lumen. Use of an hydraulic conduit avoids the errors of gas-filled systems because liquids, such as the water used in this system, are incompressible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.