Continuous non-invasive blood pressure monitoring system
US5450852A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1994 |
| Grant date | Sep 19, 1995 |
| Priority date | — |
| Expiry date | Apr 14, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0247
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A transducer having a sensing surface for sensing blood pressure within an underlying artery of a patient includes a transducer, a sidewall, a flexible diaphragm and a fluid coupling medium. The sidewall supports the transducer above the underlying artery. The flexible diaphragm is spaced from the sensing surface of the transducer. The fluid coupling medium is coupled between the sensing surface of the transducer and the flexible diaphragm and transmits blood pressure pulses within the underlying artery from the flexible diaphragm to the sensing surface of the transducer. The fluid coupling medium is isolated from the sidewall so that forces are not transmitted from the sidewall through the fluid coupling medium to the transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.