45 results about "Oscillometry" patented technology

The invention relates to a dynamic blood pressure detection and calibration method of a radial artery. The method comprises the following steps: measuring a blood pressure value BP1 to perform first calibration by using oscillography; measuring a blood pressure value BP2 to perform second calibration by using correlation of an electrocardiosignal, a pulse wave signal and human arterial pressure; finally performing continuous monitoring of blood pressure by using the linear relation between pulse wave transmission time difference PWT of two different parts on a wrist and the human arterial blood pressure which are measured at the same time.

The invention discloses an electronic meter device and realizing method, which comprises the following steps: utilizing fixed gas bag in the wrist belt to pressurize the wrist of detector; transmitting the pressure signal to electronic signal through silicon pressure sensor; amplifying signal to transmit; obtaining original pressure waveshape; separating blood pressure data and pulse wave data; gauging blood pressure, heart rate, blood viscosity and vessel elasticity.

The invention relates to an electronic auscultation sphygmomanometer based on combination of a Korotkoff sound method and an oscillometric method, solving the following problems: the manual auscultation sphygmomanometer is not convenient to carry, and Korotkoff sound auscultation is not easy to operate and is easily affected by the environment. The electronic auscultation sphygmomanometer comprises a cuff with a bladder inside, a sound pickup, an atmospheric pressure sensor, a signal processing unit, an inflation/deflation unit, a human-machine interaction unit and a microprocessor, wherein the microprocessor controls the inflation/deflation unit to inflate or deflate the cuff; after the atmospheric pressure signal obtained by the atmospheric pressure sensor and the Korotkoff sound signal obtained by the sound pickup are processed by the signal processing unit, the microprocessor firstly works out the range of the blood pressure by the oscillometric method, then searches for the Korotkoff sound signal in the range by a thresholding method to obtain the final blood pressure and finally controls the human-machine interaction interface to display the result. The sphygmomanometer can simultaneously ensure stability and precision of the measuring result and can be used in the blood pressure measurement field.

A wearable device comprises a host worn on a wrist of a human body, wherein the host comprises a casing as well as a temperature sensor, a blood pressure detection module and a CPU (central processing unit) control module which are accommodated in the casing, and the blood pressure detection module is used for measuring blood pressure on the basis of an oscillometric method; the temperature sensor is arranged on one side, close to skin of the human body, of an air bag cuff of the blood pressure detection module; the CPU control module is used for measuring blood pressure according to detection signals of the blood pressure detection module and measuring the body temperature of the human body according to detection signals of the temperature sensor, and the CPU control module controls the air bag cuff to be inflated during measurement of the body temperature of the human body so as to press the temperature sensor to be attached to the skin of the human body. The device can be worn on the wrist, is convenient to carry, can measure the blood pressure and the body temperature and meets requirements of common medical monitoring projects of families; with the adoption of the blood pressure detection module for measuring the blood pressure on the basis of the oscillometric method, the air bag cuff is inflated during measurement of the body temperature of the human body to press the temperature sensor to be attached to the skin of the human body, and accordingly, the measurement accuracy is improved.

Cuffless ambulatory blood pressure monitoring equipment based on electrocardio signals and impedance signals can be used for continuously monitoring electrocardio signals, blood pressure signals and blood flow signals in an ambulatory mode and comprises an electrocardio signal monitoring unit, an impedance signal monitoring unit, a physiological signal analytic processing unit and a physiological parameter information displaying and transmitting unit. By the monitoring equipment, the electrocardio signals can be monitored, the impedance signals of blood flow can be reflected, and the transmitting time of pulse waves can be calculated according to the electrocardio signals and the impedance signals, so that blood pressure can be continuously measured in an ambulatory and beat-to-beat mode. The shortcoming that the existing arm type or wrist type ambulatory sphygmomanometer based on an oscillometric method requires to be inflated and deflated, is high in power consumption and cannot be continuously monitored in a beat-to-beat manner is overcome.

The invention relates to a double-mode electronic sphygmomanometer measuring system, which is characterized in that the double-mode electronic sphygmomanometer measuring system includes a Korotkoff sound detection circuit and a Korotkoff sensor which detects the Korotkoff sound on a brachial artery above a human body elbow, and transmits the Korotkoff sound to the Korotkoff sound detection circuit via a cable. The Korotkoff sound detection circuit transmits the amplified and filtered Korotkoff sound signal to a processing unit. The processing unit records, processes and judges the Korotkoff sound. A light-emitting unit is controlled to transmit light-emitting blink display ynchronous to the Korotkoff sound of a testee according to the diagnostic medicine requirements. When the Korotkoff sound appears, the light-emitting unit blinks for the first time. When the Korotkoff sound changes, the light-emitting unit blinks for the last time. When the light-emitting unit blinks for the first time with rhythm the display unit displays a reference systolic pressure, and when the light-emitting unit blinks for the last time the display unit displays a reference diastolic blood pressure.

The present invention discloses an oscillography-based blood pressure measuring method and device, and aims to acquire accurate blood pressure measuring results. The method comprises sampling pulse wave crests in a pulse wave oscillating curve output by a pressure sensor, the pulse wave oscillating curve being obtained after air cuff pressure is transmitted and processed by the pressure sensor; using a group of sampled crest (xi, yi) as a given data set and fitting a pulse wave amplitude envelope line through a polynomial fitting method; and calculating to obtain a systolic pressure and a diastolic pressure according to a maximum amplitude method and the pulse wave amplitude envelope line. The conventional blood pressure measuring methods are easily influenced by subjective factors and objective environments, but the blood pressure measuring method provided by the present invention is more scientific and is not easily influenced by subjective factors or objective environments, and the obtained measuring results are accurate and objective.

A blood pressure information display device for calculating a blood pressure value based on a pulse wave amplitude through the oscillometric method and the like, and displaying the calculated blood pressure value as blood pressure information performs a process of changing a magnitude of a specified pulse wave amplitude of a plurality of extracted pulse wave amplitudes according to the operation by a user (medical staff) when a predetermined instruction is input. A predetermined algorithm is applied to the plurality of pulse wave amplitudes reflecting the change to calculate a reference blood pressure value, and the calculated reference blood pressure value is displayed as the blood pressure information.

The invention discloses a Korotkoff sound quality identification and oscillography combined blood pressure measurement method and a Korotkoff sound quality identification and oscillography combined blood pressure measurement system. The method comprises the following steps of: 1) selecting a blood pressure real-time measurement way; 2) starting the blood pressure real-time monitoring by a computer; 3) calculating a blood pressure value by a blood pressure measurement optimizing algorithm mixed with Korotkoff sound quality identification and oscillography, storing and displaying the measured data; 4) monitoring the data of a remote real-time service system; and 5) analyzing and processing an intelligent signal. The system is a blood pressure and heart rate data collecting device carried by a user and connected with a data processor; and the data processor is connected to a remote medical centre service platform via the internet. The invention can be used for measurement, storage and network transmission of blood pressures in families and hospitals so as to provide long-term stable health protection services for people to be measured.

A blood pressure measuring auxiliary device, a blood pressure measuring apparatus and a design method therefor are provided. During a blood pressure measurement, the measured pressure values and beating sound are recorded, so that the recorded pressure values and sound may be played back, which improves the accuracy of the auscultatory method; and the parameters used in the oscillometric method may be adjusted, which improves the accuracy of the oscillometric method. The blood pressure measuring auxiliary device is arranged so that it can be connected with a pressuring device of a sphygmomanometer (5), and comprises a sensing module (1), a communication module, and an audio collection module (2). The sensing module (1) is used for sensing the pressure at the joint between the blood pressure measuring auxiliary device and the pressuring device and outputting a pressure signal to the communication module. The communication module is used for receiving the pressure signal to be transmitted thereby to a terminal apparatus (6). The audio collection module (2) is used for collecting the sound at a measured site and outputting an audio signal to the terminal apparatus (6).

The invention provides an individual identification apparatus and an individual identification method based on oscillometric arterial blood pressure measurement. The individual identification apparatus comprises a pressure detection sensor part for detecting the balloon pressure with pulse wave effect included; a pulse wave extraction part for extracting arterial pulse wave signals from the cuff balloon pressure detected by the pressure detection sensor part; a pulse wave amplitude detection part for dividing the pulse wave signals extracted by the pulse wave extraction portion into a plurality of window areas and detecting maximum amplitude pulses and minimum amplitude pulses in each window area; a pulse wave image generation part for generating personalized pulse wave images by using the maxim amplitude pulses and the minimum amplitude pulses in each window area detected by the pulse wave amplitude detection part; and a bioinformation storage part for storing the personalized pulse wave images generated by the pulse wave image generation part.

The invention discloses a human body blood pressure and pulse multi-pint collecting and massaging system based on artificial intelligence, and relates to the technical field of health analysis. The aim is to solve the problems that an existing human body index measuring tool is monotonous in function and low in accuracy. Each pressure air bag is provided with an air pressure sensor for collectinginternal air pressure of the pressure air bag, two air inlet and outlet control valves are arranged on an air bag outer bag body, an air pump is located on the exterior of the air bag outer bag body and communicated with the two air inlet and outlet control valves separately at the same time, and an artificial intelligent central processor is connected with the air pump and the two air inlet and outlet control valves at the same time and connected with the two air pressure sensors. The artificial intelligent central processor obtains the blood pressure and pulse of a current human body according to air pressure signals through an oscillometric method, when the air pump is started, on-off control signals which are sent by the artificial intelligence central processor to the two air inlet and outlet control valves are reverse, and when the air pressure values in the pressure air bags in air entering reach 18 kpa, the two air inlet and outlet control valves are switched to be in a reversestate.

A Korotkoff sound electronic sphygmomanometer is characterized in that the Korotkoff sound electronic sphygmomanometer comprises a microprocessor, an amplifying and filtering system, a cuff inflation and deflation control system, a pressure regulating module, a charging module, a liquid crystal display module, a storage module, a clock module and a USB module, wherein the amplifying and filtering system, the cuff inflation and deflation control system, the pressure regulating module, the charging module, the liquid crystal display module, the storage module, the clock module and the USB module are all connected with the microprocessor, a pressure sensor and a vibration sensor send signals to the microprocessor through the amplifying and filtering system, a lithium battery is connected with the pressure regulating module and the charging module, the USB module is connected with blood pressure measuring software, and the microprocessor is an MSP430FC437 single-chip microcomputer. Aiming at the defects of a riva-rocci sphygmomanometer and an oscillography electronic sphygmomanometer, the Korotkoff sound electronic sphygmomanometer integrates the advantages of the riva-rocci sphygmomanometer and the oscillography electronic sphygmomanometer to achieve portability, low power consumption and intelligentization of a blood pressure measuring instrument, and the blood pressure can be measured more accurately.

The invention provides a module for an oscillometry system of the type having an oscillatory flow source, the module comprises an enclosure adapted to be releasably connected to a core assembly of the oscillometry system. The enclosure defines a breathing flow pathway adapted to be in fluid communication with the oscillatory flow source. A user port is at a first end of the breathing flow pathway configured for receiving a breath of a user. A calibration file specific to the module is programmed as a function of the breathing flow pathway and configured for being used by the oscillometry system to assess breathing parameters for the user.