Electronic blood pressure meter
First Claim
1. A hand held electronic blood pressure meter, comprising:
- a body portion adapted to be gripped by a thumb and at least one of another finger and a portion of a palm of a single hand;
a rotatable cuff means for receiving a further finger of the single hand, said cuff means being pivotally disposed on said body portion and being disposed so as to be pivotable by said further finger, said cuff means being pivotally disposed on a pivot which is located on a side of the body portion adjacent the portion of the palm of the single hand;
means for supplying pressurized air into the cuff means;
cuff pressure varying means for varing the pressure of the cuff means;
sensor means for detecting the pressure of the cuff means; and
blood pressure value determining means for determining a blood pressure value from outputs from the sensor means;
wherein said hand held electronic blood pressure meter is structured and arranged to be held in and capable of being used by the single hand during operation.
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Abstract
In an electronic blood pressure meter for measuring blood pressure from a finger, there is provided a photoelectric sensor including a light emitting element and a light receiving element for detecting pulse wave components from a finger placed in a cuff. Since the variation of the DC component of the pulse wave from one person to another may exceed the linear range of pulse wave measurement, the brightness level of the light emitting element is adjusted according to the level of the DC component contained in the output from the light receiving element. Thereby, favorable extraction of the variational component of the pulse wave is made always within an accurate range of pulse wave measurement.
181 Citations
14 Claims
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1. A hand held electronic blood pressure meter, comprising:
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a body portion adapted to be gripped by a thumb and at least one of another finger and a portion of a palm of a single hand; a rotatable cuff means for receiving a further finger of the single hand, said cuff means being pivotally disposed on said body portion and being disposed so as to be pivotable by said further finger, said cuff means being pivotally disposed on a pivot which is located on a side of the body portion adjacent the portion of the palm of the single hand; means for supplying pressurized air into the cuff means; cuff pressure varying means for varing the pressure of the cuff means; sensor means for detecting the pressure of the cuff means; and blood pressure value determining means for determining a blood pressure value from outputs from the sensor means; wherein said hand held electronic blood pressure meter is structured and arranged to be held in and capable of being used by the single hand during operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A hand held electronic blood pressure meter, comprising:
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a body portion adapted to e gripped by a thumb and at least one of another finger and a portion of a palm of a single hand; a rotatable cuff means for receiving a further finger of the single hand, said cuff means being pivotally disposed on said body portion and being disposed so as to be pivotable by said further finger; pivot control means for controlling the pivoting action of said cuff means, means for supplying pressurized air into the cuff means; cuff pressure varying means for varying the pressure of the cuff means; sensor means for detecting the pressure of the cuff means; and blood pressure value determining means for determining a blood pressure value from outputs from the sensor means, wherein said hand held electronic blood pressure meter is structured and arranged to be held in and capable of being used by the single hand during operation. - View Dependent Claims (12, 13, 14)
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Specification