Blood pressure measuring apparatus
First Claim
1. A blood pressure measuring apparatus, configured to measure a blood pressure of a living body, the blood pressure measuring apparatus comprising:
- a cuff-pressure control unit configured to control a cuff pressure of a cuff that presses a part of the living body;
an oscillation signal detection unit configured to detect an oscillation signal from the cuff pressure;
a blood pressure specification unit configured to measure systolic and diastolic blood pressures as the blood pressure of the living body from the oscillation signal; and
a blood pressure determination unit configured to determine whether the systolic and diastolic blood pressures are appropriately measured by the blood pressure specification unit based on the oscillation signal detected by the oscillation signal detection unit and previously stored criteria in the blood pressure measuring apparatus,wherein the cuff-pressure control unit is further configured to control the cuff pressure to be inflated to a first set value, the blood pressure specification unit is further configured to specify the systolic and diastolic blood pressures based on a change of the oscillation signal that is detected by the oscillation signal detection unit during inflation of the cuff pressure to the first set value, and when the blood pressure determination unit determines that both the systolic and diastolic blood pressures are determined to be appropriately measured by the blood pressure specification unit based on the oscillation signal detected by the oscillation signal detection unit during inflation of the cuff pressure to the first set value, the cuff-pressure control unit is configured to end the inflating of the cuff pressure of the cuff to release the cuff pressure, andwherein when the blood pressure determination unit determines that at least one of the systolic and diastolic blood pressures is determined not to be appropriately measured by the blood pressure specification unit based on the oscillation signal detected by the oscillation signal detection unit when the cuff pressure is inflated to the first set value, the cuff-pressure control unit controls the cuff pressure to be inflated to a second set value greater than the first set value, and then the cuff pressure to be deflated, and the blood pressure specification unit is further configured to specify the systolic and diastolic blood pressures based on the change of the oscillation signal that is detected by the oscillation signal detection unit during deflation of the cuff pressure from the second set value.
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Accused Products
Abstract
A blood pressure measuring apparatus, which measures a blood pressure of a living body, includes: a cuff-pressure control unit which controls a cuff pressure of a cuff that presses a part of the living body; an oscillation signal detection unit which detects an oscillation signal from the cuff pressure; a blood pressure specification unit which specifies systolic and diastolic blood pressures as the blood pressure of the living body from the oscillation signal; and a blood pressure determination unit which determines whether systolic and diastolic blood pressures are appropriate or not. The cuff-pressure control unit controls the cuff pressure to be inflated to a first set value, the blood pressure specification unit specifies the systolic and diastolic blood pressures based on a change of an oscillation signal that is detected by the oscillation signal detection unit when the cuff pressure is inflated to the first set value, and when the blood pressure determination unit determines that both the systolic and diastolic blood pressures are appropriate, the cuff-pressure control unit ends the inflating of the cuff pressure to release the cuff pressure.
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Citations
11 Claims
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1. A blood pressure measuring apparatus, configured to measure a blood pressure of a living body, the blood pressure measuring apparatus comprising:
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a cuff-pressure control unit configured to control a cuff pressure of a cuff that presses a part of the living body; an oscillation signal detection unit configured to detect an oscillation signal from the cuff pressure; a blood pressure specification unit configured to measure systolic and diastolic blood pressures as the blood pressure of the living body from the oscillation signal; and a blood pressure determination unit configured to determine whether the systolic and diastolic blood pressures are appropriately measured by the blood pressure specification unit based on the oscillation signal detected by the oscillation signal detection unit and previously stored criteria in the blood pressure measuring apparatus, wherein the cuff-pressure control unit is further configured to control the cuff pressure to be inflated to a first set value, the blood pressure specification unit is further configured to specify the systolic and diastolic blood pressures based on a change of the oscillation signal that is detected by the oscillation signal detection unit during inflation of the cuff pressure to the first set value, and when the blood pressure determination unit determines that both the systolic and diastolic blood pressures are determined to be appropriately measured by the blood pressure specification unit based on the oscillation signal detected by the oscillation signal detection unit during inflation of the cuff pressure to the first set value, the cuff-pressure control unit is configured to end the inflating of the cuff pressure of the cuff to release the cuff pressure, and wherein when the blood pressure determination unit determines that at least one of the systolic and diastolic blood pressures is determined not to be appropriately measured by the blood pressure specification unit based on the oscillation signal detected by the oscillation signal detection unit when the cuff pressure is inflated to the first set value, the cuff-pressure control unit controls the cuff pressure to be inflated to a second set value greater than the first set value, and then the cuff pressure to be deflated, and the blood pressure specification unit is further configured to specify the systolic and diastolic blood pressures based on the change of the oscillation signal that is detected by the oscillation signal detection unit during deflation of the cuff pressure from the second set value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A blood pressure measuring apparatus, configured to measure a blood pressure of a living body, the blood pressure measuring apparatus comprising:
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a central processing unit (CPU) configured to control a cuff pressure of a cuff that presses a part of the living body, detect an oscillation signal from the cuff, determine whether systolic and diastolic blood pressures as the blood pressure of the living body are able to be measured from the oscillation signal, and measure the systolic and diastolic blood pressures based on the oscillation signal in response to determining that the systolic and diastolic blood pressures are able to be measured from the oscillation signal, wherein the CPU is further configured to control the cuff pressure to be inflated to a first set value, determine whether the systolic and the diastolic blood pressures as the blood pressure of the living body are able to be measured from the oscillation signal during inflation of the cuff pressure to the first set value, measure the systolic and diastolic blood pressures based on a change of the oscillation signal that is detected during the inflation of the cuff pressure to the first set value in response to determining that the systolic and diastolic blood pressures are able to be measured from the oscillation signal, and end the inflating of the cuff pressure of the cuff and release the cuff pressure, and in response to determining that the systolic and diastolic blood pressures are unable to be measured from the oscillation signal during inflation of the cuff pressure to the first set value, control the cuff pressure to be inflated to a second set value greater than the first set value, control the cuff pressure to be deflated, and measure the systolic and diastolic blood pressures based on the change of the oscillation signal that is detected during the deflation of the cuff pressure from the second set value.
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Specification