Blood test apparatus and method of controlling the same

A - Human Necessities – 61 – B

Patent

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A61B 5/151 (2006.01) A61B 5/15 (2006.01) A61B 5/157 (2006.01)

Patent

CA 2646723

A blood test apparatus having a simple constitution whereby stable measurement can be conducted by surely sampling the blood in an amount being small but sufficient for the test without placing too much burden on a patient. When a first skin contact sensor of this apparatus detects the skin, driving of a negative pressure unit is initiated (time point 166a). Thus, the skin rises and comes into contact with a second skin contact sensor (time point 166b). After piercing into the skin at time point 166c, the negative pressure supply is once ceased. Next, the negative pressure is applied again at time point 166d for a definite period of time. Thus, the opening in the skin is broadened, which facilitates the flow out of the blood (16).

L'invention concerne un appareil de test sanguin présentant une structure simple et permettant de réaliser une mesure stable par prélèvement en toute sécurité du sang en quantité faible mais suffisante pour le test et de manière peu contraignante pour le patient. Lorsqu'un premier détecteur de contact avec la peau de cet appareil détecte la peau, une unité de pression négative est mise en marche (point 166a). Ainsi, la peau se lève et vient au contact d'un second détecteur de contact avec la peau (point 166b). Après le percement de la peau au point 166c, l'application de pression négative est interrompue. Ensuite, au point 166d, la pression négative est à nouveau appliquée pendant une période définie. Cela permet d'élargir l'ouverture formée dans la peau, ce qui facilite l'écoulement du sang (16) vers l'extérieur.

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