Apparatus and method for moving a tissue stress sensor for applanating an artery
US5240007A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 1991 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | May 14, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/02241
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An artery applanation actuator for use in a system for noninvasively determining the intra-arterial blood pressure of a user incorporates a fluid actuator to effect movement of a sensor. The movement of the sensor is effective for applanating an artery of interest and measuring the stress of the tissue overlaying the artery of interest. Alternative embodiments of the artery applanation actuator are presented wherein an electric motor is used to activate a rotating arm which has a sensor located thereon. The rotation of the arm causes the sensor to contact and press against the tissue overlying the artery of interest. The artery applanation actuator is presented having a protective sheath surrounding the sensor to protect the sensor against inadvertent contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.