Blood test apparatus and method of controlling the same
First Claim
1. A blood test apparatus configured for puncturing skin measuring blood, the apparatus comprising:
- a laser puncturing section that emits a laser light to puncture the skin;
a blood sensor that collects and analyzes the blood flowing out from the punctured skin, the blood sensor being configured for detecting collection of the blood;
a holder that holds the blood sensor;
a negative pressure section that creates a first negative pressure in a space near the blood sensor; and
a negative pressure controlling section that controls an operation of the negative pressure section,wherein the negative pressure controlling section repeatedly increases the first negative pressure in the space near the blood sensor up to a predetermined maximum negative pressure and reduces the first negative pressure in the space near the blood sensor to a second negative pressure lower than the predetermined maximum negative pressure, in at least a part of a period that extends from when the skin abuts on the holder until when the blood sensor detects the collection of blood.
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Accused Products
Abstract
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).
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Citations
16 Claims
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1. A blood test apparatus configured for puncturing skin measuring blood, the apparatus comprising:
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a laser puncturing section that emits a laser light to puncture the skin; a blood sensor that collects and analyzes the blood flowing out from the punctured skin, the blood sensor being configured for detecting collection of the blood; a holder that holds the blood sensor; a negative pressure section that creates a first negative pressure in a space near the blood sensor; and a negative pressure controlling section that controls an operation of the negative pressure section, wherein the negative pressure controlling section repeatedly increases the first negative pressure in the space near the blood sensor up to a predetermined maximum negative pressure and reduces the first negative pressure in the space near the blood sensor to a second negative pressure lower than the predetermined maximum negative pressure, in at least a part of a period that extends from when the skin abuts on the holder until when the blood sensor detects the collection of blood. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification