Pulse wave examination apparatus, blood pressure monitor, pulse waveform monitor, and pharmacological action monitor

A pulse wave examination apparatus comprising:

• a pulse wave detecting means for detecting a pulse waveform from a living body;
• a frequency analyzing means for performing a frequency analysis of the pulse waveform;
• a tidal wave-character extracting means for extracting the characteristics of a tidal wave from the result of the analysis of the frequency analyzing means to yield tidal wave-character information;
• a dicrotic wave-character extracting means for extracting the characteristics of a dicrotic wave from the result of the analysis of the frequency analyzing means to yield dicrotic wave-character information;
• and
• a pulse condition judging means for judging the pulse condition of the living body on the basis of the tidal wave-character information and the dicrotic wave-character information.

A pulse wave examination apparatus comprising:

• a pulse wave detecting means for detecting a pulse waveform from the detecting position of a living body;
• an auto-correlation calculating means for calculating auto-correlation data giving the auto-correlation of the pulse waveform detected by the pulse wave detecting means;
• and
• a pulse condition-data yielding means for yielding pulse condition data giving the type of pulse waveform based on the auto-correlation data.

A pulse wave examination apparatus comprising:

• a pulse wave detecting means for detecting a pulse waveform from the detecting position of a living body;
• a wavelet transformation means for performing wavelet transformation of the pulse waveform detected by the pulse wave detecting means to yield pulse wave analysis data for every frequency zone;
• an auto-correlation calculating means for calculating auto-correlation data giving auto-correlation of the pulse wave analysis data in a given frequency zone;
• and
• a pulse condition data yielding means for yielding a pulse condition data giving the type of pulse waveform on the basis of the auto-correlation data.

A pulse wave examination apparatus comprising:

• a pulse wave detecting means for detecting a pulse waveform from the detecting position of a living body;
• a first wavelet transformation means for performing wavelet transformation of the pulse waveform detected by the pulse wave detecting means to yield pulse wave analysis data for every frequency zone;
• a body movement detecting means for detecting the movement of the living body to output the waveform of the body movement;
• a second wavelet transformation means for performing wavelet transformation of the waveform of the body movement detected by the body movement detecting means to yield body movement analysis data for every frequency zone;
• a body movement component eliminating means for subtracting the body movement analysis data from the pulse wave analysis data to yield body movement-eliminated pulse wave analysis data;
• an auto-correlation calculating means for calculating auto-correlation data giving auto-correlation of the body movement-eliminated pulse wave analysis data in a given frequency zone;
• and
• a pulse condition data yielding means for yielding pulse condition data giving the type of pulse waveform on the basis of the auto-correlation data.

A pulse wave examination apparatus comprising:

• a pulse wave detecting means for detecting a pulse waveform from a detection position of a living body;
• a wavelet transformation means for performing wavelet transformation of the pulse waveform detected by the pulse wave detecting means to yield pulse wave analysis data for every frequency zone;
• a body movement component eliminating means for eliminating a prescribed frequency component corresponding to a body movement to yield body movement-eliminated pulse wave analysis data;
• an auto-correlation calculating means for calculating auto-correlation data giving auto-correlation of the body movement-eliminated pulse wave analysis data in a given frequency zone;
• and
• a pulse condition data yielding means for yielding a pulse condition data giving the type of pulse waveform on the basis of the auto-correlation data.

A blood pressure monitor comprising:

• an arterial pressure waveform detecting section for measuring blood pressure in an artery continuously to detect a waveform of arterial pressure;
• a mean blood pressure calculating section for calculating the mean blood pressure on the basis of the waveform of arterial pressure;
• and
• a dicrotic wave height calculating section for calculating, based on the waveform of arterial pressure, a dicrotic wave height which is the difference in blood pressure between a dicrotic notch and the peak of a dicrotic wave.

A blood pressure monitor comprising:

• an arterial pressure waveform detecting section for measuring blood pressure in an artery continuously to detect a waveform of arterial pressure;
• a mean blood pressure calculating section for calculating the mean blood pressure on the basis of the waveform of arterial pressure;
• and
• a dicrotic pressure difference ratio calculating section for calculating, based on the waveform of arterial pressure, the dicrotic pressure difference ratio which is the ratio of a dicrotic pressure difference, which is the pressure difference between the blood pressure at a dicrotic notch and the minimum blood pressure, to a pulse pressure which is the pressure difference between the maximum blood pressure and the minimum blood pressure.

A blood pressure monitor comprising:

• an arterial pressure waveform detecting section for measuring blood pressure in an artery continuously to detect a waveform of arterial pressure;
• a mean blood pressure calculating section for calculating the mean blood pressure on the basis of the waveform of arterial pressure;
• and
• a mean blood pressure-pulse pressure ratio calculating section for calculating, based on the waveform of arterial pressure, the mean blood pressure-pulse pressure ratio which is the ratio of the mean blood pressure to a pulse pressure which is the pressure difference between the maximum blood pressure and the minimum blood pressure.

A blood pressure monitor comprising:

• an arterial pressure waveform detecting section for measuring blood pressure in an artery continuously to detect a waveform of arterial pressure;
• a pulse pressure calculating section for calculating pulse pressure, which is the pressure difference between the maximum blood pressure and the minimum blood pressure, on the basis of the waveform of arterial pressure;
• and
• a dicrotic wave height calculating section for calculating, based on the waveform of arterial pressure, the dicrotic wave height which is the difference in blood pressure between a dicrotic notch and the peak of a dicrotic wave.

A blood pressure monitor comprising:

• an arterial pressure waveform detecting section for measuring blood pressure in an artery continuously to detect a waveform of arterial pressure;
• a pulse pressure calculating section for calculating pulse pressure, which is the pressure difference between the maximum blood pressure and the minimum blood pressure, on the basis of the waveform of arterial pressure;
• and
• a dicrotic pressure difference ratio calculating section for calculating, based on the waveform of arterial pressure, the dicrotic pressure difference ratio which is the ratio of a dicrotic pressure difference, which is the pressure difference between the blood pressure at a dicrotic notch and the minimum blood pressure, to a pulse pressure which is the pressure difference between the maximum blood pressure and the minimum blood pressure.

A blood pressure monitor comprising:

• an arterial pressure waveform detecting section for measuring blood pressure in an artery continuously to detect a waveform of arterial pressure;
• a pulse pressure calculating section for calculating pulse pressure, which is the pressure difference between the maximum blood pressure and the minimum blood pressure, on the basis of the waveform of arterial pressure;
• and
• a mean blood pressure-pulse pressure ratio calculating section for calculating, based on the waveform of arterial pressure, the mean blood pressure-pulse pressure ratio which is the ratio of the mean blood pressure to a pulse pressure which is the pressure difference between the maximum blood pressure and the minimum blood pressure.