Method and apparatus for detecting a blood leak in a...

Details Method and apparatus for detecting a blood leak in a... Method and apparatus for detecting a blood leak in a...

G - Physics

01

N

73/58

G01N 21/27 (2006.01) A61M 1/16 (2006.01) B01D 65/10 (2006.01) G01F 1/66 (2006.01) G01M 3/38 (2006.01)

Patent

CA 1117788

12,124 METHOD AND APPARATUS FOR DETECTING A BLOOD LEAK IN A HEMODIALYSIS SYSTEM ABSTRACT A blood leak in the dialyzer is detected by transmitting a pulsed beam of light into the dialysate flowstream at a predetermined angle of incidence between the central axis of the flowstream and the normal axis and measuring variations in reflecting light received by a photodetector arranged on the same side of the flowstream as the phototransmitter at a predetermined angle of reflection. The beam of light is interupted at a rate with a substantially equal on-time to off time ratio. S P E C I F I C A T I O N 1.

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