Instrument for measuring living body components
US4813423A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1987 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | May 22, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/155
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is an instrument for measuring living body components, which has (i) a fine tube having at one end thereof a connection portion to be connected to an indwelling needle or indwelling catheter and an infusion portion, from which at least a blood anticoagulant solution can be infused, (ii) a fine linear sensor for measuring living body components, extended from the inferior of the fine tube to the outside through the connection portion, and (iii) a mechanism for introducing blood at least into the interior of a fine tube portion of the indwelling needle or catheter intermittently or periodically when the indwelling needle or catheter is connected to the fine tube and kept in the blood vessel and then discharging blood into the blood vessel. A sensing portion of the sensor is located within the fine tube portion of the indwelling needle or catheter when the indwelling needle or catheter is connected to the connection portion of the fine tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.