Arterial-hardness evaluating apparatus
First Claim
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1. An apparatus for evaluating a degree of hardness of an artery of a living subject, comprising:
- a blood-flow stopping device which stops a flow of blood through a first portion of the subject;
a blood-amount detecting device which is adapted to be worn on a second portion of the subject that is located on a downstream side of the first portion and which produces a blood-amount signal representing an amount of blood present in the second portion; and
an arterial-hardness determining means for determining the degree of hardness of artery of the subject based on a decreasing curve of the blood-amount signal produced by the blood-amount detecting device in a state in which the flow of blood through the first portion of the subject is stopped by the blood-flow stopping device.
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Abstract
An apparatus for evaluating a degree of hardness of an artery of a living subject, including a blood-flow stopping device which stops a flow of blood through a first portion of the subject, and a blood-amount detecting device which is adapted to be worn on a second portion of the subject that is located on a downstream side of the first portion and which produces a blood-amount signal representing an amount of blood present in the second portion.
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Citations
6 Claims
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1. An apparatus for evaluating a degree of hardness of an artery of a living subject, comprising:
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a blood-flow stopping device which stops a flow of blood through a first portion of the subject;
a blood-amount detecting device which is adapted to be worn on a second portion of the subject that is located on a downstream side of the first portion and which produces a blood-amount signal representing an amount of blood present in the second portion; and
an arterial-hardness determining means for determining the degree of hardness of artery of the subject based on a decreasing curve of the blood-amount signal produced by the blood-amount detecting device in a state in which the flow of blood through the first portion of the subject is stopped by the blood-flow stopping device. - View Dependent Claims (2, 3, 4, 5, 6)
an inflatable cuff which is adapted to be worn on the first portion of the subject; and
a gas pump which supplies a pressurized gas to the cuff to press the first portion of the subject and thereby stop the flow of blood through the first portion.
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5. An apparatus according to claim 1, wherein the blood-amount detecting device comprises:
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a light emitter which emits a light toward the second portion of the subject; and
a light receiver which receives the light from the second portion and produces the blood-amount signal representing an amount of the light received from the second portion and thereby representing the amount of blood present in the second portion.
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6. An apparatus according to claim 1, further comprising a display device which displays the degree of hardness of artery determined by the arterial-hardness determining means.
Specification