Automatic blood pressure measuring instrument and method thereof
First Claim
1. An automatic blood pressure measuring instrument for measuring and displaying a blood pressure of a subject in a non-invasive manner, comprising:
- a pressure sensor for obtaining a pulse wave signal from a wrist of the subject;
a pulse wave signal processing section for amplifying, filtering, and removing noise from the pulse wave signal obtained by the pressure sensor to obtain a processed analog pulse wave signal;
electrocardiogram electrodes for detecting an electrocardiogram signal of the subject;
an electrocardiogram signal processing section for amplifying, filtering, and removing noise from the electrocardiogram signal detected by the electrocardiogram electrodes to obtain a processed analog electrocardiogram signal;
an A/D converting section for converting the processed analog pulse wave signal and the processed analog electrocardiogram signal into a digital pulse wave signal and a digital electrocardiogram signal;
a controlling section for comparing and analyzing the digital pulse wave signal and the digital electrocardiogram signal to determine parameters comprising a transition time parameter, an integral parameter, an area parameter, and a maximum amplitude parameter, and determining the blood pressure of the subject based on the transition time parameter, the integral parameter, the area parameter, and the maximum amplitude parameter; and
a display for displaying the blood pressure of the subject determined by the controlling section.
0 Assignments
0 Petitions
Accused Products
Abstract
An automatic blood pressure measuring instrument for measuring and displaying a blood pressure of a subject in a non-invasive manner includes a pressure sensor for obtaining a pulse wave signal from a wrist of the subject, a pulse wave signal processing section for amplifying, filtering, and removing noise from the pulse wave applied from the pressure sensor, electrocardiogram electrodes for obtaining an electrocardiogram signal of the subject, an electrocardiogram signal processing section for amplifying, filtering, and removing noise from the electrocardiogram signal, an A/D converting section for converting the pulse wave signal the electrocardiogram signal into digital signals, a controlling section for comparing and analyzing the digital pulse wave signal and the digital electrocardiogram signal to determine the blood pressure of the subject, and a display for displaying the blood pressure of the subject determined by the controlling section.
26 Citations
17 Claims
-
1. An automatic blood pressure measuring instrument for measuring and displaying a blood pressure of a subject in a non-invasive manner, comprising:
-
a pressure sensor for obtaining a pulse wave signal from a wrist of the subject; a pulse wave signal processing section for amplifying, filtering, and removing noise from the pulse wave signal obtained by the pressure sensor to obtain a processed analog pulse wave signal; electrocardiogram electrodes for detecting an electrocardiogram signal of the subject; an electrocardiogram signal processing section for amplifying, filtering, and removing noise from the electrocardiogram signal detected by the electrocardiogram electrodes to obtain a processed analog electrocardiogram signal; an A/D converting section for converting the processed analog pulse wave signal and the processed analog electrocardiogram signal into a digital pulse wave signal and a digital electrocardiogram signal; a controlling section for comparing and analyzing the digital pulse wave signal and the digital electrocardiogram signal to determine parameters comprising a transition time parameter, an integral parameter, an area parameter, and a maximum amplitude parameter, and determining the blood pressure of the subject based on the transition time parameter, the integral parameter, the area parameter, and the maximum amplitude parameter; and a display for displaying the blood pressure of the subject determined by the controlling section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 15, 16)
-
-
9. An automatic blood pressure measuring method for measuring and displaying a blood pressure of a subject in a non-invasive manner, comprising:
-
obtaining a pulse wave signal from a wrist of the subject; amplifying, filtering, and removing noise from the pulse wave signal to obtain a processed analog pulse wave signal; detecting an electrocardiogram signal of the subject; amplifying, filtering, and removing noise from the electrocardiogram signal to obtain a processed analog electrocardiogram signal; converting the processed analog pulse wave signal and the processed analog electrocardiogram signal into a digital pulse wave signal and a digital electrocardiogram signal; comparing and analyzing the digital pulse wave signal and the digital electrocardiogram signal to determine parameters comprising a transition time parameter, an integral parameter, an area parameter, and a maximum amplitude parameter; determining the blood pressure of the subject based on the transition time parameter, the integral parameter, the area parameter, and the maximum amplitude parameter; and displaying the determined blood pressure of the subject. - View Dependent Claims (10, 11, 12, 13, 14, 17)
-
Specification