BLOOD PRESSURE INFORMATION MEASUREMENT DEVICE AND BLOOD PRESSURE INFORMATION MEASUREMENT METHOD
First Claim
1. A blood pressure information measurement device for calculating an index of a degree of arteriosclerosis of a measurement subject as blood pressure information, comprising:
- a detection member comprising a plurality of pressure sensors; and
a central processing unit that detects a pulse waveform by bringing the detection member into contact with an exterior of a measurement site of the measurement subject,wherein the central processing unit;
acquires factor information for the degree of arteriosclerosis;
stores a plurality of pseudo blood flow waveforms;
generates a waveform estimated as a blood flow waveform by compositing the plurality of pseudo blood flow waveforms based on the factor information;
decomposes the pulse waveform into waveforms of an ejected wave and a reflected wave using the pulse waveform and the waveform estimated as the blood flow waveform; and
calculates the index of the degree of arteriosclerosis from a relationship between the ejected wave and the reflected wave obtained by decomposing the pulse waveform.
1 Assignment
0 Petitions
Accused Products
Abstract
A CPU acquires factor information for a degree of arteriosclerosis, stores a plurality of pseudo blood flow waveforms, generates a waveform estimated as a blood flow waveform by compositing the plurality of pseudo blood flow waveforms based on the factor information, decomposes a pulse waveform into waveforms of an ejected wave and a reflected wave using the pulse waveform and the waveform estimated as the blood flow waveform, and calculates an index of the degree of arteriosclerosis from a relationship between the ejected wave and the reflected wave obtained by decomposing the pulse waveform.
-
Citations
13 Claims
-
1. A blood pressure information measurement device for calculating an index of a degree of arteriosclerosis of a measurement subject as blood pressure information, comprising:
-
a detection member comprising a plurality of pressure sensors; and a central processing unit that detects a pulse waveform by bringing the detection member into contact with an exterior of a measurement site of the measurement subject, wherein the central processing unit; acquires factor information for the degree of arteriosclerosis; stores a plurality of pseudo blood flow waveforms; generates a waveform estimated as a blood flow waveform by compositing the plurality of pseudo blood flow waveforms based on the factor information; decomposes the pulse waveform into waveforms of an ejected wave and a reflected wave using the pulse waveform and the waveform estimated as the blood flow waveform; and calculates the index of the degree of arteriosclerosis from a relationship between the ejected wave and the reflected wave obtained by decomposing the pulse waveform. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13)
-
-
8. A method for calculating an index of a degree of arteriosclerosis of a measurement subject as blood pressure information in a blood pressure information measurement device, comprising:
-
a step of detecting a pulse waveform by bringing a detection member that includes comprising a plurality of pressure sensors into contact with an exterior of a measurement site of the measurement subject; a step of acquiring factor information for the degree of arteriosclerosis; a step of storing a plurality of pseudo blood flow waveforms; a step of generating a waveform estimated as a blood flow waveform by compositing the plurality of pseudo blood flow waveforms based on the factor information; a step of decomposing the pulse waveform into waveforms of an ejected wave and a reflected wave using the pulse waveform and the waveform estimated as the blood flow waveform; and a step of calculating the index of the degree of arteriosclerosis from a relationship between the ejected wave and the reflected wave obtained by decomposing the pulse waveform.
-
Specification