45 results about "Oscillometry" patented technology

A blood pressure information display device for calculating blood pressure according to a pulse amplitude by, for example, oscillometry and displaying the calculated blood pressure as blood pressure information. The blood pressure information display device changes the magnitude of a pulse amplitude specified out of the extracted pulse amplitudes in response to the operation of the user (health professional) when a predetermined instruction is inputted (steps S112, S114). The device calculates a reference blood pressure by applying a predetermined algorithm to the pulse amplitudes reflecting the change (step S122) and displays the calculated reference blood pressure as blood pressure information (step S124).

A blood pressure measurement control method for controlling the measurement of a blood pressure according to an oscillometric method has the steps of determining whether to employ a depressurization measurement method or a pressurization measurement method to measure the blood pressure according to a person to be measured, performing a measurement process of the blood pressure in a depressurization process when determined to measure the blood pressure with the depressurization measurement method, performing a measurement process of the blood pressure in a pressurization process when determined to measure the blood pressure with the pressurization measurement method, and outputting the measured blood pressure value.

The invention discloses an auxiliary device for blood pressure measurement, blood pressure measurement equipment and a design method of the blood pressure measurement equipment. The blood pressure measurement equipment can record measured pressure values and pulsing sounds in the blood pressure measurement process, so that the recorded pressure values and sounds can be replayed, and the accuracy of an auscultatory method is improved; parameters used in an oscillometric method can be adjusted, and the accuracy of the oscillometric method is improved.

The invention discloses an electronic sphygmomanometer, which comprises an automatic inflation and deflation device, a pressure device, a measuring device, a control device, and first and second display devices, and uses the automatic inflation and deflation device to inflate and deflate the pressure device , use the sensor to sense the air bag pressure signal and obtain the pressure value through calculation and processing, and display it in the analog mercury column scale displayed by the first display device, wherein the analog mercury column scale is divided into several scale segments, according to the pressure value At least the analog mercury column scale section where the pressure value is located is displayed, and the analog mercury column is indicated on the scale scale corresponding to the pressure value, so that the doctor can listen to the Korotkoff sound with a stethoscope to obtain the blood pressure value. It can also directly display the measurement results automatically calculated by using the principle of the oscillometric method in digital form on the second display device. In this way, the electronic sphygmomanometer does not need to display a mercury column scale in the form of a complete and coherent long column, but displays it in segments, which can solve the problems of excessive size and high cost of the liquid crystal display screen, and does not require measuring personnel Manually inflate and deflate, and automatically get the measurement results, which can reduce the human operation during the measurement process and improve the accuracy of the measurement.

A system and method for processing oscillometric data from a plurality of pressure steps to determine the blood pressure of a patient. A heart rate monitor connected to the patient acquires the patient's heart rate. A time-to-frequency domain converter receives oscillometric data and converts the oscillometric data into the frequency domain. Based upon the calculated heart rate, the system and method filters the frequency domain oscillometric signal with pass bands centered at the fundamental frequency and at least one fundamental frequency. The energy of the frequency domain signal within the pass bands is compared to at least a portion of the energy of the frequency domain oscillometric signal outside of the pass bands. Based upon the comparison, the signal determines whether the signal at the current pressure step should be utilized in calculating the blood pressure of the patient.