Patent · US Expired

Examination apparatus for measuring oxygenation in body organs

US5103829A · kind A · utility

30Cited by
7References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 2, 1988
Grant dateApr 14, 1992
Priority date
Expiry dateMay 2, 2008

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61B5/14553
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An examination apparatus for measuring the oxygenation in body organs by the near infrared light transmission spectrophotometry. The invention relates to an improvement of an illumination-side fixture and a detection-side fixture. In order to hold optical fibers for introducing infrared light in their natural conditions, the fixtures are equipped with respective prisms for changing light paths by prescribed angles. Also, the fixtures are equipped with respective light-emitting diodes for indicating if the examination apparatus is in its operating condition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.