HEMATOCRIST DUE TO GEOMETRIC OPTICAL DIFFERENCE IN CATHETER FOR SHORT-TIME DIAGNOSIS OF HEART BLOOD VESSEL AND MEASURING AND CORRECTION SYSTEM ESPECIALLY SUITABLE FOR BLOOD OXYGEN

Title:

HEMATOCRIST DUE TO GEOMETRIC OPTICAL DIFFERENCE IN CATHETER FOR SHORT-TIME DIAGNOSIS OF HEART BLOOD VESSEL AND MEASURING AND CORRECTION SYSTEM ESPECIALLY SUITABLE FOR BLOOD OXYGEN

Document Type and Number:

Japanese Patent JPS63283627

Kind Code:

A

Abstract:

For measuring the corpuscular content of a fluid, in particular blood hematocrit, a system includes a catheter (101) whose tip (102) is inserted into a patient's bloodstream; the catheter includes one or more transmitting optical fibres (nn) for conducting light from a light source (DS1,DS2) to the tip and one or more receiving optical fibres (pp, oo) for receiving the light reflected by the corpuscles and transmitting it to a detector (244a, 244b, 244c) (not shown). The optical fibres together define two optical paths (although the paths can share a common optical fibre, e.g. fibre nn) and the relationship (e.g. the separation) between the transmitting optical fibre and the receiving optical fibre of one path is different to that of the other path and the system can include means to calculate blood hematocrit from the difference between the signals along the two paths.

Inventors:

BAIRON ERU MOORAN
ARAN EFU UIRISU
IITSUZAKU MENDERUSON

Application Number:

JP7084288A

Publication Date:

November 21, 1988

Filing Date:

March 23, 1988

Export Citation:

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Assignee:

SUPEKUTORAMUDO INC

International Classes:

A61B5/00; A61B5/145; A61B5/1459; G01N21/85; (IPC1-7): A61B5/14

Attorney, Agent or Firm:

Kenmi Niimi (1 person outside)

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