Blood pressure measurement device having function of determining rest condition of patient

A blood pressure measurement device that determines a rest or an unrest condition of a patient, the device comprising:

• a cuff for mounting on a measurement site of the patient, wherein the cuff is configured to be pressurized and depressurized to measure a blood pressure and a pulse period of the patient;
• means for measuring the blood pressure and the pulse period of the patient during and before depressurization of the cuff;
• a memory that stores data of a pulse period measured in a past measurement of the patient by the measuring means;
• a threshold calculation section that calculates a threshold value of the pulse period measured during and before depressurization of the cuff based on data of the pulse period measured in the past measurement of the patient,
• wherein the threshold value is a threshold value range,
• wherein if the pulse period was measured during depressurization of the cuff,
• an upper end of the threshold value range comprises a product of:
• the pulse period measured during depressurization of the cuff;
• and a discretionary constant plus one, and
• a lower end of the threshold value range comprises a product of:
• the pulse period measured during depressurization of the cuff;
• and one minus the discretionary constant, and
• wherein if the pulse period was measured before depressurization of the cuff,
• an upper end of the threshold value range comprises a product of:
• the pulse period measured before depressurization of the cuff;
• and the discretionary constant plus one, and
• a lower end of the threshold value range comprises a product of:
• the pulse period measured during depressurization of the cuff;
• and one minus the discretionary constant;
• a rest/unrest condition determination section that determines whether the patient was in a rest condition or an unrest condition during blood pressure measurement by comparing the pulse period measured during and before depressurization of the cuff with the threshold value based on data of the pulse period measured in the past measurement of the patient;
• and
• a display unit that displays the measured blood pressure and whether the blood pressure was measured during the rest condition or the unrest condition of the patient.

A blood pressure measurement device that determines a rest or an unrest condition of a patient, the device comprising:

• a cuff for mounting on a measurement site of the patient, wherein the cuff comprises an air bladder and is configured to be pressurized and depressurized to measure a blood pressure and a pulse period of the patient;
• a measurement air system comprising a pressure sensor, a pump, and a valve;
• an air tube that connects the air bladder of the cuff to the measurement air system;
• a blood pressure calculation section that calculates a blood pressure of the patient based on an internal pressure of the air bladder as detected by the pressure sensor;
• a heart rate/pulse period change calculation section that calculates a pulse rate of the patient during and before depressurization of the cuff and a pulse period change of the patient during and before depressurization of the cuff based on the measured pulse period of the patient;
• a memory that stores data of a pulse period measured in a past measurement of the patient;
• a threshold calculation section that calculates a threshold value of at least one of the pulse rate of the patient calculated during and before depressurization of the cuff and the pulse period change of the patient calculated during and before depressurization of the cuff based on data of the pulse period measured in the past measurement of the patient,
• wherein the threshold value is a threshold value range,
• wherein, with respect to the threshold value of the pulse rate or the pulse period change of the patient calculated during depressurization of the cuff,
• an upper end of the threshold value range comprises a product of:
• the pulse rate or the pulse period change calculated during depressurization of the cuff;
• and a discretionary constant plus one, and
• a lower end of the threshold value range comprises a product of:
• the pulse rate or the pulse period change calculated during depressurization of the cuff;
• and one minus the discretionary constant,
• wherein, with respect to the threshold value of the pulse rate or the pulse period change of the patient calculated before depressurization of the cuff,
• an upper end of the threshold value range comprises a product of:
• the pulse rate or the pulse period change calculated before depressurization of the cuff;
• and the discretionary constant plus one, and
• a lower end of the threshold value range comprises a product of:
• the pulse rate or the pulse period change calculated before depressurization of the cuff;
• and one minus the discretionary constant;
• a rest/unrest condition determination section that determines whether the patient was in a rest condition or an unrest condition during blood pressure measurement by comparing at least one of the pulse rate of the patient calculated during and before depressurization of the cuff and the pulse period change of the patient calculated during and before depressurization of the cuff with the threshold value based on data of the pulse period measured in the past measurement of the patient;
• and
• a display unit that displays the measured blood pressure and whether the blood pressure was measured during the rest condition or the unrest condition of the patient.