Patent EP0154995A2 successfully refreshed from Google Patents.
EP0154995A2
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Device for measuring blood pressure
Assignee: Omron Corp
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Filing: 1985-03-13
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Granted: —
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Expires: 2005-03-13
Abstract
Abstract An electronic device for measuring blood pressure, according to which either systolic pressure may be derived from mean pressure and diastolic pressure, or diastolic pressure may be derived from systolic pressure and mean pressure, whereby the time duration of the application of pressure to the patient's arm may be reduced because the pressure to be applied may only range substantially over between mean pressure and diastolic pressure or between systolic pressure and mean pressure. Additionally proposed is a means for improving the accuracy of the above- mentioned derivation of systolic pressure or diastolic pressure. As a result, considerable reduction in the time duration required for measurement may be reduced without any increase in measurement errors.
Inventors
- 👤 Yoshinori Miyawaki
- 👤 Shirasaki Osamu
- 👤 Satoshi Ueno
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 22:21
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/022
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
126 words
A device for measuring blood pressure, comprising: a pressure cuff; a pressurizing means for pressurizing the pressure cuff; an evacuation means for gradually or quickly evacuating the pressure cuff; a pressure sensor for detecting the pressure of the pressure cuff; a pulsatile wave detecting means for detecting pulsatile signals contained the pressure of the pressure cuff; a blood pressure determining means for determining systolic blood pressure and mean blood pressure from the wave form information of the pulsatile wave obtained by the pulsatile wave detecting means as the pressure cuff is being gradually evacuated by the evacuating means; and a diastolic pressure determining means for computing diastolic blood pressure from the systolic blood pressure and the mean blood pressure determined by the blood pressure determining means.
Claim 2
Independent Claim
126 words
A device for measuring blood pressure, comprising: a pressure cuff; a pressurizing means for pressurizing the pressure cuff; an evacuation means for gradually or quickly evacuating the pressure cuff; a pressure sensor for detecting the pressure of the pressure cuff; a pulsatile wave detecting means for detecting pulsatile signals contained the pressure of the pressure cuff; a blood pressure determining means for determining systolic blood pressure and mean blood pressure from the wave form information of the pulsatile wave obtained by the pulsatile wave detecting means as the pressure cuff is being gradually evacuated by the evacuating means; and a diastolic pressure determining means for computing diastolic blood pressure from the systolic blood pressure and the mean blood pressure determined by the blood pressure determining means.
Claim 3
Dependent Claim
47 words
A device for measuring blood pressure as defined in claim 1, wherein the computation at the diastolic pressure determining means is performed according to a formula: (diastolic blood pressure) = (mean blood pressure) - (1/A) (systolic blood pressure - mean blood pressure) where A is a constant.
Claim 4
Dependent Claim
22 words
A device for measuring blood pressure as defined in claim 1 or 2, wherein the constant A is substantially equal to 2.0.
Claim 5
Independent Claim
125 words
A device for measuring blood pressure, comprising: a pressure cuff; a pressurizing means for pressurizing the pressure cuff; an evacuation means for gradually or quickly evacuating the pressure cuff; a pressure sensor for detecting the pressure of the pressure cuff; a pulsatile wave detecting means for detecting pulsatile signals contained the pressure of the pressure cuff; a blood pressure determining means for determining mean blood pressure and diastolic blood pressure from the wave form information of the pulsatile wave obtained by the pulsatile wave detecting means as the pressure cuff is being gradually evacuated by the evacuating means; and a systolic pressure determining means for computing systolic blood-pressure from the mean blood pressure and the diastolic blood pressure determined by the blood pressure determining means.
Claim 6
Independent Claim
125 words
A device for measuring blood pressure, comprising: a pressure cuff; a pressurizing means for pressurizing the pressure cuff; an evacuation means for gradually or quickly evacuating the pressure cuff; a pressure sensor for detecting the pressure of the pressure cuff; a pulsatile wave detecting means for detecting pulsatile signals contained the pressure of the pressure cuff; a blood pressure determining means for determining mean blood pressure and diastolic blood pressure from the wave form information of the pulsatile wave obtained by the pulsatile wave detecting means as the pressure cuff is being gradually evacuated by the evacuating means; and a systolic pressure determining means for computing systolic blood-pressure from the mean blood pressure and the diastolic blood pressure determined by the blood pressure determining means.
Claim 7
Dependent Claim
47 words
A device for measuring blood pressure as defined in claim 4, wherein the computation at the systolic pressure determining means is performed according to a formula: (systolio blood pressure) - (mean blood pressure) - A (mean blood pressure - diastolic blood pressure) where A is a constant.
Claim 8
Dependent Claim
22 words
A device for measuring blood pressure as defined in claim 4 or 5, wherein the constant A is substantially equal to 2.0.
Claim 9
Independent Claim
256 words
A device for measuring blood pressure, comprising: a pressure cuff; a pressurizing means for pressurizing the pressure cuff; an evacuation means for gradually or quickly evacuating the pressure cuff; a pressure sensor for detecting the pressure of the pressure cuff; a pulsatile wave detecting means for detecting pulsatile signals contained in the pressure of the pressure cuff; a first blood pressure determining means for determining systolic blood pressure, mean blood pressure and diastolic blood pressure from the wave form information of the pulsatile wave obtained by the pulsatile wave detecting means as the pressure cuff is being gradually evacuated by the evacuating means; a constant value computing means for computing a constant value A = (systolic blood pressure - mean blood pressure)/ (mean blood pressure - diastolic blood pressure) from the blood pressures determined by the first blood pressure determining means; a second blood pressure determining means for computing systolic blood pressure or diastolic blood pressure from the moan blood pressure and the diastolic blood pressure or the systolic blood pressure and the mean blood pressure determined by the blood pressure determining means during the gradual evacuation of the pressure cuff, and computing the systolic pressure or the diastolic blood pressure according to the constant value A which was computed by the constant value computing means; and a measurement control means which activates the first blood pressure determining means in a first stage and, in a intermittent and repetitive manner, activates the second blood pressure determining means in a second stage which follows the first stage.
Claim 10
Independent Claim
256 words
A device for measuring blood pressure, comprising: a pressure cuff; a pressurizing means for pressurizing the pressure cuff; an evacuation means for gradually or quickly evacuating the pressure cuff; a pressure sensor for detecting the pressure of the pressure cuff; a pulsatile wave detecting means for detecting pulsatile signals contained in the pressure of the pressure cuff; a first blood pressure determining means for determining systolic blood pressure, mean blood pressure and diastolic blood pressure from the wave form information of the pulsatile wave obtained by the pulsatile wave detecting means as the pressure cuff is being gradually evacuated by the evacuating means; a constant value computing means for computing a constant value A = (systolic blood pressure - mean blood pressure)/ (mean blood pressure - diastolic blood pressure) from the blood pressures determined by the first blood pressure determining means; a second blood pressure determining means for computing systolic blood pressure or diastolic blood pressure from the moan blood pressure and the diastolic blood pressure or the systolic blood pressure and the mean blood pressure determined by the blood pressure determining means during the gradual evacuation of the pressure cuff, and computing the systolic pressure or the diastolic blood pressure according to the constant value A which was computed by the constant value computing means; and a measurement control means which activates the first blood pressure determining means in a first stage and, in a intermittent and repetitive manner, activates the second blood pressure determining means in a second stage which follows the first stage.
References Cited (Backward Citations)
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