CN106659404A - Continuous blood pressure measurement method, apparatus and device - Google Patents
Continuous blood pressure measurement method, apparatus and device Download PDFInfo
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Abstract
一种连续血压测量方法、装置和设备,该方法包括:获取设备获取心电信号和光体积变化描记脉搏信号,根据心电信号和光体积变化描记脉搏信号确定实测血压,根据实测血压与确定预测血压的预估方程式,对预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。所述连续血压测量方法、装置和设备可以提高连续血压测量的精确度。
A method, device and equipment for continuous blood pressure measurement, the method comprising: obtaining equipment to acquire electrocardiographic signals and photoplethysmographic pulse signals, determining the measured blood pressure according to the electrocardiographic signals and the photoplethysmographic pulse signals, and determining the predicted blood pressure according to the actual measured blood pressure and the determined predicted blood pressure The estimation equation is used to correct the coefficients of the estimation equation, and calculate the blood pressure value according to the adjusted estimation equation. The continuous blood pressure measurement method, device and equipment can improve the accuracy of continuous blood pressure measurement.
Description
本发明实施例涉及医疗设备技术,特别涉及一种连续血压测量方法、装置和设备。Embodiments of the present invention relate to medical equipment technology, in particular to a method, device and equipment for continuous blood pressure measurement.
人体血压是人类在身体健康方面,尤其是心脑血管方面非常重要的参考指标,也是医务工作者进行疾病诊断的重要依据,因此,用户经常测量并掌握自己的血压,是进行保健和预防疾病的重要手段。Human blood pressure is a very important reference index for human health, especially cardiovascular and cerebrovascular. It is also an important basis for medical workers to diagnose diseases. important means.
在现有技术中,测量血压的方式有很多种,其中,利用基于脉搏波传输速度的血压计测量血压是近年来运用较多的一种方式,该方式在使用时通过从设置在指尖或其他末梢组织位置的心电传感器(Electro Cardio Graphy;简称:ECG)和光电传感器(Photo Plethysmor Graphy;简称:PPG)采集心电信号和光电体积描记脉搏信号,并根据动脉血压和脉搏波传输速度之间的关系来确定血压,当血压上升时,血管扩张,脉搏波传输速度加快,反之,脉搏波传输速度减慢。In the prior art, there are many ways to measure blood pressure. Among them, using a sphygmomanometer based on pulse wave transmission velocity to measure blood pressure is a way that has been used more in recent years. The electrocardiographic sensor (Electro Cardio Graphy; ECG for short) and the photoelectric sensor (Photo Plethysmor Graphy; PPG for short) at other peripheral tissue locations collect ECG signals and photoplethysmographic pulse signals, and according to the relationship between arterial blood pressure and pulse wave transmission velocity, When the blood pressure rises, the blood vessels dilate and the pulse wave transmission speed increases, otherwise, the pulse wave transmission speed slows down.
然而,采用基于脉搏波传输速度的方式测量血压时,需要同时用心电传感器和光电传感器进行测量,不宜进行连续的血压检测。单独利用PPG进行血压推测的技术也被研究过,但是由于体动噪声、外界干扰光或汗液等噪声,会对PPG进行光电探测造成干扰,从而导致测量误差,而且如果进行连续的血压测量,则会使误差不断积累,造成连续血压测量的精确度不高。However, when the blood pressure is measured based on the pulse wave transmission velocity, the ECG sensor and the photoelectric sensor need to be used for measurement at the same time, which is not suitable for continuous blood pressure detection. The technology of using PPG alone for blood pressure estimation has also been studied, but due to noise such as body motion noise, external interference light or sweat, it will interfere with the photoelectric detection of PPG, resulting in measurement errors, and if continuous blood pressure measurement is performed, then Errors will continue to accumulate, resulting in low accuracy of continuous blood pressure measurement.
发明内容Contents of the invention
本发明实施例提供一种连续血压测量方法、装置和设备,以提高连续血压测量的精确度。Embodiments of the present invention provide a method, device and equipment for continuous blood pressure measurement, so as to improve the accuracy of continuous blood pressure measurement.
本发明实施例提供一种连续血压测量方法,包括:An embodiment of the present invention provides a continuous blood pressure measurement method, including:
获取设备获取心电信号和光体积变化描记脉搏信号;The acquiring device acquires ECG signals and photoplethysmographic pulse signals;
所述获取设备根据所述心电信号和所述光体积变化描记脉搏信号确定实 测血压;The acquisition device determines the actual Blood pressure;
所述获取设备根据所述实测血压确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。The acquisition device determines an estimation equation for predicting blood pressure according to the measured blood pressure, corrects coefficients of the estimation equation, and calculates a blood pressure value according to the corrected estimation equation.
结合第一方面,在第一方面的第一种可能的实现方式中,所述获取设备获取心电信号,包括:With reference to the first aspect, in a first possible implementation manner of the first aspect, the acquisition device acquires the ECG signal, including:
所述获取设备通过心电传感器采集心电波;The acquisition device collects electrocardiograms through an electrocardiogram sensor;
所述获取设备对所述心电波进行快速傅里叶变换FFT处理,获得处理信号;The acquisition device performs fast Fourier transform (FFT) processing on the electrocardiogram to obtain a processed signal;
所述获取设备对所述处理信号进行去除噪声处理,获得所述心电信号。The obtaining device performs noise removal processing on the processed signal to obtain the electrocardiographic signal.
结合第一方面或第一方面的第一种可能的实现方式,在第一方面的第二种可能的实现方式中,所述获取设备获取光体积变化描记脉搏信号,包括:With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the acquisition device acquires a photoplethysmography pulse signal, including:
所述获取设备通过脉搏传感器采集脉搏波;The acquisition device acquires pulse waves through a pulse sensor;
所述获取设备对所述脉搏波进行快速傅里叶变换FFT处理,获得处理信号;The acquisition device performs fast Fourier transform (FFT) processing on the pulse wave to obtain a processed signal;
所述获取设备对所述处理信号进行去除噪声处理,获得所述光体积变化描记脉搏信号。The acquisition device performs noise removal processing on the processed signal to obtain the photoplethysmography pulse signal.
结合第一方面、第一方面的第一种至第一方面的第二种任一种可能的实现方式,在第一方面的第三种可能的实现方式中,所述获取设备根据所述心电信号和所述光体积变化描记脉搏信号确定实测血压值,包括:With reference to the first aspect, any of the first possible implementation manner of the first aspect to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the acquisition device according to the heart The electrical signal and the photoplethysmographic pulse signal determine the measured blood pressure value, comprising:
所述获取设备将所述心电信号和所述光体积变化描记脉搏信号进行同步,获得同步信号;The obtaining device synchronizes the electrocardiographic signal and the photoplethysmographic pulse signal to obtain a synchronization signal;
所述获取设备根据所述同步信号,计算脉搏传输时间PTT;The acquisition device calculates the pulse transit time PTT according to the synchronization signal;
所述获取设备根据所述PTT确定实测血压。The acquisition device determines the measured blood pressure from the PTT.
结合第一方面、第一方面的第一种至第一方面的第三种任一种可能的实现方式,在第一方面的第四种可能的实现方式中,所述获取设备根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,包括:With reference to the first aspect, the first aspect of the first aspect to any of the third possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, the acquisition device according to the measured Blood pressure and determining an estimation equation for predicting blood pressure, and correcting the coefficients of the estimation equation, including:
所述获取设备对所述光体积变化描记脉搏信号进行二次微分,获得特征量;The acquisition device performs a second differential on the photoplethysmography pulse signal to obtain a characteristic quantity;
所述获取设备根据所述特征量和预设的预估方程式,获得预测血压; The obtaining device obtains predicted blood pressure according to the characteristic quantity and a preset estimation equation;
所述获取设备根据所述实测血压和所述预测血压,对所述预设的预估方程式的系数进行校正。The acquisition device corrects the coefficients of the preset estimation equation according to the measured blood pressure and the predicted blood pressure.
第二方面,本发明实施例提供一种连续血压测量的方法,包括:In the second aspect, an embodiment of the present invention provides a method for continuous blood pressure measurement, including:
接收侧设备获取心电信号和光体积变化描记脉搏信号;The receiving side device acquires the ECG signal and the photoplethysmography pulse signal;
所述接收侧设备根据所述心电信号和所述光体积变化描记脉搏信号确定实测血压;The receiving-side device determines the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal;
所述接收侧设备向发送侧设备发送所述实测血压,以供所述发送侧设备根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。The receiving-side device sends the measured blood pressure to the sending-side device, so that the sending-side device can correct the coefficients of the predictive equation according to the measured blood pressure and the predictive equation for determining the predicted blood pressure, and according to the corrected The following predictive equation calculates the blood pressure value.
第三方面,本发明实施例提供一种连续血压测量的方法,包括:In a third aspect, an embodiment of the present invention provides a method for continuous blood pressure measurement, including:
发送侧设备获取光体积变化描记脉搏信号,并将所述光体积变化描记脉搏信号发送给接收侧设备,以供所述接收侧设备根据获取的心电信号和所述光体积变化描记脉搏信号确定实测血压;The sending-side device acquires the photoplethysmographic pulse signal, and sends the photoplethysmographic pulse signal to the receiving-side device, so that the receiving-side device determines Measured blood pressure;
所述发送侧设备接收所述接收侧设备发送的所述实测血压;The sending-side device receives the measured blood pressure sent by the receiving-side device;
所述发送侧设备根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。The sending-side device corrects the coefficients of the estimated equation according to the measured blood pressure and the estimated equation for determining the predicted blood pressure, and calculates the blood pressure value according to the corrected estimated equation.
第四方面,本发明实施例提供一种连续血压测量装置,包括:In a fourth aspect, an embodiment of the present invention provides a continuous blood pressure measurement device, including:
获取模块,用于获取心电信号和光体积变化描记脉搏信号;An acquisition module, configured to acquire electrocardiographic signals and photoplethysmographic pulse signals;
确定模块,用于根据所述心电信号和所述光体积变化描记脉搏信号确定实测血压;A determining module, configured to determine the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal;
处理模块,用于根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。The processing module is configured to correct the coefficients of the predictive equation according to the measured blood pressure and the predictive equation for determining the predicted blood pressure, and calculate the blood pressure value according to the corrected predictive equation.
结合第四方面,在第四方面的第一种可能的实现方式中,所述获取模块包括:With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the acquiring module includes:
第一采集单元,用于通过心电传感器采集心电波;The first collection unit is used to collect electrocardiogram through the electrocardiogram sensor;
第一处理单元,用于对所述心电波进行快速傅里叶变换FFT处理,获得处理信号;A first processing unit, configured to perform fast Fourier transform (FFT) processing on the electrocardiogram to obtain a processed signal;
所述第一处理单元,还用于对所述处理信号进行去除噪声处理,获得所述心电信号。The first processing unit is further configured to perform noise removal processing on the processed signal to obtain the electrocardiographic signal.
结合第四方面或第四方面的第一种可能的实现方式,在第四方面的第二 种可能的实现方式中,所述获取模块包括:In combination with the fourth aspect or the first possible implementation of the fourth aspect, in the second aspect of the fourth aspect In a possible implementation manner, the acquisition module includes:
第二采集单元,用于通过脉搏传感器采集脉搏波;The second collection unit is used to collect the pulse wave through the pulse sensor;
第二处理单元,用于对所述脉搏波进行快速傅里叶变换FFT处理,获得处理信号;The second processing unit is configured to perform fast Fourier transform (FFT) processing on the pulse wave to obtain a processed signal;
所述第二处理单元,用于对所述处理信号进行去除噪声处理,获得所述光体积变化描记脉搏信号。The second processing unit is configured to perform noise removal processing on the processed signal to obtain the photoplethysmographic pulse signal.
结合第四方面、第四方面的第一种至第四方面的第二种任一种可能的实现方式,在第四方面的第三种可能的实现方式中,所述确定模块包括:In combination with the fourth aspect and any of the second possible implementation manners from the first aspect to the fourth aspect of the fourth aspect, in the third possible implementation manner of the fourth aspect, the determination module includes:
同步单元,用于将所述心电信号和所述光体积变化描记脉搏信号进行同步,获得同步信号;a synchronization unit, configured to synchronize the electrocardiographic signal and the photoplethysmography pulse signal to obtain a synchronization signal;
计算单元,用于根据所述同步信号,计算脉搏传输时间PTT;a calculation unit, configured to calculate the pulse transit time PTT according to the synchronization signal;
确定单元,用于根据所述PTT确定实测血压。A determining unit, configured to determine the measured blood pressure according to the PTT.
结合第四方面、第四方面的第一种至第四方面的第三种任一种可能的实现方式,在第四方面的第四种可能的实现方式中,所述处理模块包括:With reference to the fourth aspect and any of the third possible implementation manners from the first aspect to the fourth aspect of the fourth aspect, in the fourth possible implementation manner of the fourth aspect, the processing module includes:
获取单元,用于对所述光体积变化描记脉搏信号进行二次微分,获得特征量;an acquisition unit, configured to perform secondary differentiation on the photoplethysmography pulse signal to obtain a characteristic quantity;
所述获取单元,用于根据所述特征量和预设的预估方程式,获得预测血压;The acquisition unit is configured to obtain predicted blood pressure according to the feature quantity and a preset estimation equation;
校正单元,用于根据所述实测血压和所述预测血压,对所述预设的预估方程式的系数进行校正。A correction unit, configured to correct the coefficients of the preset estimation equation according to the measured blood pressure and the predicted blood pressure.
第五方面,本发明实施例提供一种连续血压测量的装置,包括:In the fifth aspect, an embodiment of the present invention provides a device for continuous blood pressure measurement, including:
获取模块,用于获取心电信号和光体积变化描记脉搏信号;An acquisition module, configured to acquire electrocardiographic signals and photoplethysmographic pulse signals;
确定模块,用于根据所述心电信号和所述光体积变化描记脉搏信号确定实测血压;A determining module, configured to determine the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal;
发送模块,用于向发送侧设备发送所述实测血压,以供所述发送侧设备根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。A sending module, configured to send the actual measured blood pressure to the sending side device, so that the sending side device can correct the coefficients of the predicted equation according to the actual measured blood pressure and the estimated equation for determining the predicted blood pressure, and according to the corrected The following predictive equation calculates the blood pressure value.
第六方面,本发明实施例提供一种连续血压测量的装置,包括:In the sixth aspect, an embodiment of the present invention provides a device for continuous blood pressure measurement, including:
获取模块,用于获取光体积变化描记脉搏信号;An acquisition module, configured to acquire a photoplethysmography pulse signal;
发送模块,用于将所述光体积变化描记脉搏信号发送给接收侧设备,以 供所述接收侧设备根据获取的心电信号和所述光体积变化描记脉搏信号确定实测血压;A sending module, configured to send the photoplethysmographic pulse signal to the receiving side device, to For the receiving side device to determine the measured blood pressure according to the acquired ECG signal and the photoplethysmographic pulse signal;
接收模块,用于接收所述接收侧设备发送的所述实测血压;a receiving module, configured to receive the measured blood pressure sent by the receiving device;
处理模块,用于根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。The processing module is configured to correct the coefficients of the predictive equation according to the measured blood pressure and the predictive equation for determining the predicted blood pressure, and calculate the blood pressure value according to the corrected predictive equation.
第七方面,本发明实施例提供一种获取设备,包括:In a seventh aspect, an embodiment of the present invention provides an acquisition device, including:
接收器,用于获取心电信号和光体积变化描记脉搏信号;The receiver is used to obtain the electrocardiographic signal and the photoplethysmographic pulse signal;
处理器,用于根据所述心电信号和所述光体积变化描记脉搏信号确定实测血压;a processor, configured to determine the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal;
所述处理器,还用于根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。The processor is further configured to correct the coefficients of the predictive equation according to the measured blood pressure and the predictive equation for determining the predicted blood pressure, and calculate the blood pressure value according to the corrected predictive equation.
结合第七方面,在第七方面的第一种可能的实现方式中,所述接收器,还用于通过心电传感器采集心电波;With reference to the seventh aspect, in a first possible implementation manner of the seventh aspect, the receiver is further configured to collect electrocardiograms through an electrocardiogram sensor;
所述处理器,还用于对所述心电波进行快速傅里叶变换FFT处理,获得处理信号;The processor is further configured to perform fast Fourier transform (FFT) processing on the electrocardiogram to obtain a processed signal;
所述处理器,还用于对所述处理信号进行去除噪声处理,获得所述心电信号。The processor is further configured to perform noise removal processing on the processed signal to obtain the electrocardiographic signal.
结合第七方面或第七方面的第一种可能的实现方式,在第七方面的第二种可能的实现方式中,所述接收器,还用于通过脉搏传感器采集脉搏波;With reference to the seventh aspect or the first possible implementation manner of the seventh aspect, in a second possible implementation manner of the seventh aspect, the receiver is further configured to collect pulse waves through a pulse sensor;
所述处理器,还用于对所述脉搏波进行快速傅里叶变换FFT处理,获得处理信号;The processor is further configured to perform fast Fourier transform (FFT) processing on the pulse wave to obtain a processed signal;
所述处理器,还用于对所述处理信号进行去除噪声处理,获得所述光体积变化描记脉搏信号。The processor is further configured to perform noise removal processing on the processed signal to obtain the photoplethysmographic pulse signal.
结合第七方面、第七方面的第一种至第七方面的第二种可能的实现方式,在第七方面的第三种可能的实现方式中,所述处理器,还用于将所述心电信号和所述光体积变化描记脉搏信号进行同步,获得同步信号;With reference to the seventh aspect, the first to the second possible implementation manner of the seventh aspect, in a third possible implementation manner of the seventh aspect, the processor is further configured to use the The electrocardiographic signal is synchronized with the photoplethysmographic pulse signal to obtain a synchronous signal;
所述处理器,还用于根据所述同步信号,计算脉搏传输时间PTT;The processor is further configured to calculate a pulse transit time PTT according to the synchronization signal;
所述处理器,还用于根据所述PTT确定实测血压。The processor is further configured to determine the measured blood pressure according to the PTT.
结合第七方面、第七方面的第一种至第七方面的第三种可能的实现方式,在第七方面的第四种可能的实现方式中,所述处理器,还用于对所述光体积 变化描记脉搏信号进行二次微分,获得特征量;With reference to the seventh aspect and the first to the third possible implementation manner of the seventh aspect, in a fourth possible implementation manner of the seventh aspect, the processor is further configured to: light volume The change tracing pulse signal is subjected to quadratic differentiation to obtain the characteristic quantity;
所述处理器,还用于根据所述特征量和预设的预估方程式,获得预测血压;The processor is further configured to obtain predicted blood pressure according to the feature quantity and a preset estimation equation;
所述处理器,还用于根据所述实测血压和所述预测血压,对所述预设的预估方程式的系数进行校正。The processor is further configured to correct coefficients of the preset estimation equation according to the measured blood pressure and the predicted blood pressure.
第八方面,本发明实施例提供一种接收侧设备,包括:In an eighth aspect, an embodiment of the present invention provides a receiving-side device, including:
接收器,用于获取心电信号和光体积变化描记脉搏信号;The receiver is used to obtain the electrocardiographic signal and the photoplethysmographic pulse signal;
处理器,用于根据所述心电信号和所述光体积变化描记脉搏信号确定实测血压;a processor, configured to determine the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal;
发送器,用于向发送侧设备发送所述实测血压,以供所述发送侧设备根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。a transmitter, configured to send the actual measured blood pressure to the sending-side device, so that the sending-side device can correct the coefficients of the estimated equation according to the actual measured blood pressure and the estimated equation for determining the predicted blood pressure, and according to the corrected The following predictive equation calculates the blood pressure value.
第九方面,本发明实施例提供一种发送侧设备,包括:In a ninth aspect, an embodiment of the present invention provides a sending-side device, including:
接收器,用于获取光体积变化描记脉搏信号;The receiver is used to obtain the photoplethysmography pulse signal;
发送器,用于将所述光体积变化描记脉搏信号发送给接收侧设备,以供所述接收侧设备根据心电信号和所述光体积变化描记脉搏信号确定实测血压;A transmitter, configured to send the photoplethysmographic pulse signal to a receiving-side device, so that the receiving-side device determines the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal;
所述接收器,用于接收所述接收侧设备发送的所述实测血压;The receiver is configured to receive the measured blood pressure sent by the receiving device;
处理器,用于根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。The processor is configured to correct the coefficients of the predictive equation according to the measured blood pressure and the predictive equation for determining the predicted blood pressure, and calculate the blood pressure value according to the corrected predictive equation.
本发明实施例提供的连续血压测量方法、装置和设备,获取设备获取心电信号和光体积变化描记脉搏信号,根据心电信号和光体积变化描记脉搏信号确定实测血压,并根据实测血压和确定预测血压的预估方程式,对预估方程式的系数进行误差校正,并根据校正后的预估方程式计算血压值。由于在获得实测血压之后,根据与血压有关的相关参数和光体积变化描记脉搏信号对血压进行预测,并且利用实测血压对确定预测血压的预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值,从而提高了连续测量血压时的精确度。In the continuous blood pressure measurement method, device and equipment provided by the embodiments of the present invention, the acquisition device acquires the electrocardiographic signal and the photoplethysmographic pulse signal, determines the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal, and determines the predicted blood pressure according to the measured blood pressure and the determined blood pressure The estimated equation is used to perform error correction on the coefficients of the estimated equation, and the blood pressure value is calculated according to the corrected estimated equation. After the measured blood pressure is obtained, the blood pressure is predicted according to the relevant parameters related to the blood pressure and the photoplethysmographic pulse signal, and the coefficients of the prediction equation for determining the predicted blood pressure are corrected by using the measured blood pressure, and according to the corrected prediction equation Calculate the blood pressure value, thereby improving the accuracy of continuous blood pressure measurement.
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1为本发明连续血压测量方法实施例一的流程示意图;Fig. 1 is a schematic flow chart of Embodiment 1 of the continuous blood pressure measurement method of the present invention;
图2为本发明连续血压测量方法实施例二的流程示意图;Fig. 2 is a schematic flow chart of Embodiment 2 of the continuous blood pressure measurement method of the present invention;
图3为本发明连续血压测量方法实施例三的流程示意图;Fig. 3 is a schematic flow chart of Embodiment 3 of the continuous blood pressure measurement method of the present invention;
图4为本发明连续血压测量方法实施例四的流程示意图;Fig. 4 is a schematic flow chart of Embodiment 4 of the continuous blood pressure measurement method of the present invention;
图5为本发明连续血压测量方法实施例五的流程示意图;Fig. 5 is a schematic flow chart of Embodiment 5 of the continuous blood pressure measurement method of the present invention;
图6为本发明连续血压测量方法实施例六的流程示意图;Fig. 6 is a schematic flowchart of Embodiment 6 of the continuous blood pressure measurement method of the present invention;
图7为本发明连续血压测量方法实施例七的流程示意图;Fig. 7 is a schematic flow chart of Embodiment 7 of the continuous blood pressure measurement method of the present invention;
图8为本发明连续血压测量装置实施例一的结构示意图;Fig. 8 is a structural schematic diagram of Embodiment 1 of the continuous blood pressure measurement device of the present invention;
图9为本发明连续血压测量装置实施例二的结构示意图;Fig. 9 is a schematic structural diagram of Embodiment 2 of the continuous blood pressure measurement device of the present invention;
图10为本发明连续血压测量装置实施例三的结构示意图;Fig. 10 is a schematic structural view of Embodiment 3 of the continuous blood pressure measurement device of the present invention;
图11为本发明连续血压测量装置实施例四的结构示意图;Fig. 11 is a schematic structural view of Embodiment 4 of the continuous blood pressure measurement device of the present invention;
图12为本发明连续血压测量装置实施例五的结构示意图;Fig. 12 is a schematic structural view of Embodiment 5 of the continuous blood pressure measurement device of the present invention;
图13为本发明连续血压测量装置实施例六的结构示意图;Fig. 13 is a schematic structural view of Embodiment 6 of the continuous blood pressure measurement device of the present invention;
图14为本发明获取设备实施例一的结构示意图;FIG. 14 is a schematic structural diagram of Embodiment 1 of the acquisition device of the present invention;
图15为本发明接收侧设备实施例一的结构示意图;FIG. 15 is a schematic structural diagram of Embodiment 1 of receiving-side equipment in the present invention;
图16为本发明发送侧设备实施例一的结构示意图。FIG. 16 is a schematic structural diagram of Embodiment 1 of the device at the sending side according to the present invention.
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
图1为本发明连续血压测量方法实施例一的流程示意图。本发明实施例提供了一种连续血压测量方法,该方法可以由任意执行连续血压测量方法的装置来执行,该装置可以通过软件和/或硬件实现。本实施例中,该装置可以集成在获取设备中,其中,获取设备例如可以为移动终端或可穿戴式设备。 如图1所示,本实施例的方法可以包括:FIG. 1 is a schematic flowchart of Embodiment 1 of the continuous blood pressure measurement method of the present invention. An embodiment of the present invention provides a continuous blood pressure measurement method, which can be executed by any device that implements the continuous blood pressure measurement method, and the device can be implemented by software and/or hardware. In this embodiment, the apparatus may be integrated into an acquisition device, where the acquisition device may be, for example, a mobile terminal or a wearable device. As shown in Figure 1, the method of this embodiment may include:
步骤101、获取设备获取心电信号和光体积变化描记脉搏信号。Step 101, the acquisition device acquires the electrocardiographic signal and the photoplethysmographic pulse signal.
在本实施例中,获取设备通过心电传感器获取心电信号,并通过脉搏传感器获取光体积变化描记脉搏信号,其中,心电传感器例如可以为ECG电极。在实际应用中,通过将至少两个ECG电极放置在获取设备的不同位置以获取心电信号,例如:可以将至少两个ECG电极放置在用户左右手分别可以接触到的位置,以通过ECG电极获取用户的心电信号。对于ECG电极的数量和具体的放置位置,本发明对此不作限制。In this embodiment, the acquisition device acquires the ECG signal through the ECG sensor, and acquires the photoplethysmography pulse signal through the pulse sensor, wherein the ECG sensor may be, for example, an ECG electrode. In practical applications, by placing at least two ECG electrodes at different positions of the acquisition device to obtain ECG signals, for example: at least two ECG electrodes can be placed at positions that can be touched by the user's left and right hands respectively, so as to obtain ECG signals through the ECG electrodes. The user's ECG signal. The present invention does not limit the number of ECG electrodes and specific placement positions.
步骤102、获取设备根据心电信号和光体积变化描记脉搏信号确定实测血压。Step 102, the acquisition device determines the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal.
在本实施例中,获取设备获取到心电信号和光体积变化描记脉搏信号之后,根据心电信号和光体积变化描记脉搏信号,共同确定出用户的实测血压。In this embodiment, after acquiring the electrocardiographic signal and the photoplethysmographic pulse signal, the acquisition device jointly determines the user's actual blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal.
步骤103、获取设备根据实测血压值和确定预测血压的预估方程式,对预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。Step 103, the acquisition device corrects the coefficients of the estimated equation according to the measured blood pressure value and the estimated equation determined to predict the blood pressure, and calculates the blood pressure value according to the corrected estimated equation.
在本实施例中,预估方程式的建立需要预先结合输入数据进行机器学习。其中,输入数据为与血压有关的参数,其包括以下至少之一:性别、体重、身高、日常脉搏、生活习惯、作息制度、心电图特征、服药状况,光体积变化描记脉搏信号的速度脉搏,加速度脉搏等。在具体地实现过程中,可以根据各参数对光体积变化描记脉搏信号进行分类,再对分类后的光体积变化描记脉搏信号进行多元回归分析,以获知各参数与血压之间的关系,从而确定出最合适的预估方程式,举例来说:在进行机器学习时,根据用户的服药状况将光体积变化描记脉搏信号进行分类,若用户没有服药,则继续根据用户的年龄分类……,最终,将光体积变化描记脉搏信号分为N类,分类之后,根据分类结果对光体积变化描记脉搏信号进行多元回归分析,得出各参数与血压之间的关系,从而得到预估方程式,即得出的计算预测血压的预估方程式为:sBPe=f(t,Ci),其中,sBPe为预测血压,t为特征量,Ci为随机因素,其用于调整回归效果。In this embodiment, the establishment of the estimation equation needs to be combined with the input data to perform machine learning in advance. Among them, the input data are parameters related to blood pressure, which include at least one of the following: gender, weight, height, daily pulse, living habits, work and rest schedule, electrocardiogram characteristics, medication status, speed pulse of photoplethysmographic pulse signal, acceleration pulse etc. In the specific implementation process, the photoplethysmography pulse signal can be classified according to each parameter, and then multiple regression analysis is performed on the classified photoplethysmography pulse signal to know the relationship between each parameter and blood pressure, so as to determine Find the most suitable estimation equation, for example: when performing machine learning, classify the photoplethysmography pulse signal according to the user's medication status, if the user is not taking medication, continue to classify according to the user's age... Finally, Divide the photoplethysmography pulse signal into N categories. After the classification, perform multiple regression analysis on the photoplethysmography pulse signal according to the classification results, and obtain the relationship between each parameter and blood pressure, so as to obtain the estimation equation, that is, The prediction equation for calculating the predicted blood pressure is: sBPe=f(t, Ci), where sBPe is the predicted blood pressure, t is the feature quantity, and Ci is a random factor, which is used to adjust the regression effect.
其中,对于特征量,获取设备可以在获取到光体积变化描记脉搏信号之后,通过对该光体积变化描记脉搏信号进行微分运算来获取。在具体的实现过程中,可以通过对光体积变化描记脉搏信号进行两次微分来获取特征量, 其中,将光体积变化描记脉搏信号进行一次微分后,可以获得速度脉搏,接着进行二次微分后,可以获知加速度脉搏,继而可以获知特征量。Wherein, for the feature quantity, the acquiring device may acquire the photoplethysmographic pulse signal by performing a differential operation on the photoplethysmographic pulse signal after acquiring the feature quantity. In the specific implementation process, the characteristic quantity can be obtained by differentiating the photoplethysmography pulse signal twice, Wherein, the velocity pulse can be obtained after the photoplethysmography pulse signal is differentiated once, and the acceleration pulse can be obtained after the second differentiation, and then the characteristic quantity can be obtained.
另外,获取设备获得特征量之后,根据预先进行机器学习确定出的计算预测血压的预估方程式,便可以计算出预测血压了。In addition, after the acquisition device obtains the feature quantity, the predicted blood pressure can be calculated according to the prediction equation for calculating the predicted blood pressure determined by machine learning in advance.
在具体地实现过程中,如上所述,根据输入数据将光体积变化描记脉搏信号进行分类,再对分类后的光体积变化描记脉搏信号进行多元回归分析之后,相应的,获得的预估方程式也会有若干组(n),采用哪一组预估方程式进行本次血压的预测,是根据获取设备确定出的实测血压进行确定的。具体地,可以将实测血压作为平均值X,假设计算出的预测血压为Xi,其中,i为预测血压的个数(样本个数),通过计算实测血压X与预测血压Xi(样本)之间的标准方差Sn。迭代使用所有n组预估方程式,得到预测血压样本和X的标准方差Sn,若计算出的第j个预测血压对应的标准方差Sj为所有n组Sn中的最小值,则选择该组预估方程式(标准方差为Sj的)用于测量,其中,j小于或等于i。对于多元回归分析,也可以采用其他模型,本发明对此不作限制。In the specific implementation process, as mentioned above, the photoplethysmography pulse signal is classified according to the input data, and then after multiple regression analysis is performed on the classified photoplethysmography pulse signal, correspondingly, the obtained estimation equation is also There will be several groups (n), and which group of prediction equations to use to predict the blood pressure is determined based on the actual blood pressure determined by the acquisition device. Specifically, the measured blood pressure can be taken as the average value X, assuming that the calculated predicted blood pressure is Xi, where i is the number of predicted blood pressures (number of samples), by calculating the measured blood pressure X and the predicted blood pressure Xi ( samples) The standard deviation between S n . Iteratively use all n groups of prediction equations to obtain the standard deviation S n of the predicted blood pressure samples and X, if the calculated standard deviation S j corresponding to the jth predicted blood pressure is the minimum value among all n groups S n , then select this Group predictor equations (with standard deviation Sj ) are used for measurements where j is less than or equal to i. For multiple regression analysis, other models can also be used, which is not limited in the present invention.
本发明实施例提供的连续血压测量方法,获取设备获取心电信号和光体积变化描记脉搏信号,根据心电信号和光体积变化描记脉搏信号确定实测血压,并根据实测血压和确定预测血压的预估方程式,对预估方程式的系数进行误差校正,并根据校正后的预估方程式计算血压值。由于在获得实测血压之后,根据与血压有关的相关参数和光体积变化描记脉搏信号对血压进行预测,并且利用实测血压对确定预测血压的预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值,从而提高了连续血压测量的精确度。In the continuous blood pressure measurement method provided by the embodiment of the present invention, the acquisition device acquires the electrocardiographic signal and the photoplethysmographic pulse signal, determines the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal, and determines the prediction equation for predicting the blood pressure according to the measured blood pressure and the , performing error correction on the coefficients of the estimation equation, and calculating the blood pressure value according to the corrected estimation equation. After the measured blood pressure is obtained, the blood pressure is predicted according to the relevant parameters related to the blood pressure and the photoplethysmographic pulse signal, and the coefficients of the prediction equation for determining the predicted blood pressure are corrected by using the measured blood pressure, and according to the corrected prediction equation Calculates blood pressure values, thereby improving the accuracy of continuous blood pressure measurements.
图2为本发明连续血压测量方法实施例二的流程示意图,本实施例在连续血压测量方法实施例一的基础上,对获取设备获取心电信号的实施例,做详细说明。如图2所示,本实施例的方法可以包括:Fig. 2 is a schematic flow chart of Embodiment 2 of the continuous blood pressure measurement method of the present invention. This embodiment is based on the first embodiment of the continuous blood pressure measurement method, and describes in detail the embodiment of the acquisition device for obtaining ECG signals. As shown in Figure 2, the method of this embodiment may include:
步骤201、获取设备通过心电传感器采集心电波。Step 201, the acquisition device collects electrocardiograms through an electrocardiogram sensor.
在本实施例中,获取设备采集到的心电波为未经加工和处理的时序信号。In this embodiment, the electrocardiogram collected by the acquisition device is an unprocessed and unprocessed time-series signal.
步骤202、获取设备对心电波进行快速傅里叶变换FFT处理,获得处理信号。Step 202, the acquisition device performs fast Fourier transform (FFT) processing on the electrocardiogram to obtain processed signals.
在本实施例中,获取设备采用信号处理电路对心电波进行A/D转换和快 速傅里叶变换(Fast Fourier Transform;简称:FFT)处理,从而将时域信号变换成频域信号,以方便信号的分析和处理。In this embodiment, the acquisition device uses a signal processing circuit to perform A/D conversion and fast Fast Fourier Transform (FFT) processing is used to transform time-domain signals into frequency-domain signals to facilitate signal analysis and processing.
步骤203、获取设备对处理信号进行去除噪声处理,获得心电信号。Step 203, the acquisition device performs noise removal processing on the processed signal to obtain the electrocardiographic signal.
在本实施例中,获取设备在获得的处理信号中检测出心电的峰值波形之后,会进行去除噪声处理,其中,噪声去除主要采用对信号进行滤波等方式,举例来说,可以通过加速度传感器等检测到运动模式,然后对比心电传感器的频域信号波动,来剔除由于运动等原因导入的噪声。In this embodiment, after the acquisition device detects the peak waveform of the ECG in the obtained processed signal, it will perform noise removal processing, wherein the noise removal mainly uses methods such as filtering the signal, for example, through the acceleration sensor After detecting the motion pattern, compare the frequency domain signal fluctuation of the ECG sensor to eliminate the noise introduced due to motion and other reasons.
本发明实施例提供的连续血压测量方法,获取设备通过心电传感器采集心电波,并对心电波进行处理,获得处理信号,再对该处理信号进行去除噪声处理,以获得心电信号,提高了心电信号测量的准确性。In the continuous blood pressure measurement method provided by the embodiment of the present invention, the acquisition device collects the electrocardiogram through the electrocardiogram sensor, and processes the electrocardiogram to obtain the processed signal, and then performs noise removal processing on the processed signal to obtain the electrocardiogram signal, which improves the Accuracy of ECG signal measurement.
图3为本发明连续血压测量方法实施例三的流程示意图,本实施例在图1或图2所示实施例的基础上,对获取设备获取光体积变化描记脉搏信号的实施例,做详细说明。如图3所示,本实施例的方法可以包括:Fig. 3 is a schematic flow chart of Embodiment 3 of the continuous blood pressure measurement method of the present invention. On the basis of the embodiment shown in Fig. 1 or Fig. 2, this embodiment describes in detail the embodiment in which the acquisition device acquires the photoplethysmographic pulse signal . As shown in Figure 3, the method of this embodiment may include:
步骤301、获取设备通过脉搏传感器采集脉搏波。Step 301, the acquisition device acquires pulse waves through a pulse sensor.
在本实施例中,获取设备采集到的脉搏波为未经加工和处理的时序信号。In this embodiment, the pulse wave collected by the acquisition device is an unprocessed and unprocessed time series signal.
步骤302、获取设备对脉搏波进行快速傅里叶变换FFT处理,获得处理信号。In step 302, the acquisition device performs fast Fourier transform (FFT) processing on the pulse wave to obtain a processed signal.
在本实施例中,获取设备采用信号处理电路对脉搏波进行A/D转换,并对转后的信号进行FFT处理,从而将时域信号变换成频域信号,以方便信号的分析和处理。In this embodiment, the acquisition device uses a signal processing circuit to perform A/D conversion on the pulse wave, and performs FFT processing on the converted signal, thereby transforming the time domain signal into a frequency domain signal to facilitate signal analysis and processing.
步骤303、获取设备对处理信号进行去除噪声处理,获得光体积变化描记脉搏信号。Step 303, the acquisition device performs noise removal processing on the processed signal to obtain a photoplethysmography pulse signal.
在本实施例中,获取设备在获得的处理信号中检测出脉搏的峰值波形之后,会进行去除噪声处理,其中,噪声去除主要采用对信号进行滤波等方式,举例来说,可以通过加速度传感器等检测到运动模式,然后对比脉搏传感器的频域信号波动,来剔除由于运动等原因导入的噪声。In this embodiment, after the acquisition device detects the peak waveform of the pulse in the obtained processed signal, it will perform noise removal processing, wherein the noise removal mainly uses methods such as filtering the signal, for example, through an acceleration sensor, etc. The motion pattern is detected, and then the frequency domain signal fluctuation of the pulse sensor is compared to eliminate the noise introduced due to motion and other reasons.
本发明实施例提供的连续血压测量方法,获取设备通过脉搏传感器采集脉搏波,并对脉搏波进行处理,获得处理信号,再对该处理信号进行去除噪声处理,以获得光体积变化描记脉搏信号,提高了光体积变化描记脉搏信号测量的准确性。另外,通过脉搏传感器测量光体积变化描记脉搏信号,达到 了连续测量的目的。In the continuous blood pressure measurement method provided by the embodiment of the present invention, the acquisition device collects the pulse wave through the pulse sensor, and processes the pulse wave to obtain a processed signal, and then performs noise removal processing on the processed signal to obtain a photoplethysmography pulse signal, Improved accuracy of photoplethysmographic pulse signal measurement. In addition, the photoplethysmography pulse signal is measured by the pulse sensor to achieve for the purpose of continuous measurement.
图4为本发明连续血压测量方法实施例四的流程示意图,本实施例在上述各实施例的基础上,对获取设备根据心电信号和光体积变化描记脉搏信号确定实测血压的实施例,做详细说明。如图4所示,本实施例的方法可以包括:Fig. 4 is a schematic flow chart of Embodiment 4 of the continuous blood pressure measurement method of the present invention. On the basis of the above-mentioned embodiments, this embodiment will describe in detail the embodiment in which the acquisition device determines the measured blood pressure according to the ECG signal and the photoplethysmographic pulse signal. illustrate. As shown in Figure 4, the method of this embodiment may include:
步骤401、获取设备将心电信号和光体积变化描记脉搏信号进行同步,获得同步信号。Step 401. The acquisition device synchronizes the electrocardiographic signal and the photoplethysmographic pulse signal to obtain a synchronization signal.
在本实施例中,由于心电信号是由心电传感器进行测量的,而光体积变化描记脉搏信号是由脉搏传感器测量得到,因此,需要将这两个信号进行同步,以找到同一个心电图的R波和脉搏的上升点,以计算R波和脉搏的上升点之间的时间差。在具体的实现过程中,可以通过对心电传感器和脉搏传感器的采集时间进行同步对准,以完成心电信号和光体积变化描记脉搏信号的同步。In this embodiment, since the ECG signal is measured by the ECG sensor, and the photoplethysmography pulse signal is measured by the pulse sensor, the two signals need to be synchronized to find the same ECG pulse signal. R wave and rising point of pulse to calculate the time difference between R wave and rising point of pulse. In a specific implementation process, the synchronization of the electrocardiographic signal and the photoplethysmographic pulse signal can be completed by synchronously aligning the collection time of the electrocardiographic sensor and the pulse sensor.
步骤402、获取设备根据同步信号,计算脉搏传输时间PTT。Step 402, the acquisition device calculates the pulse transmission time PTT according to the synchronization signal.
在本实施例中,假设心脏的收缩和血液泵出是同时的,则可以通过心电图的R波和脉搏的上升点之间的时间差计算出脉搏传输时间(pulse transit time;简称:PTT),具体地,假设时间a代表心电信号上的R波顶点在时间轴上的位置,时间b和时间c分别代表光体积变化描记脉搏信号上的一个底点和一个顶点在时间轴上的位置,则可以通过计算时间a与时间b之间的时间差,从而得到PTT,也可以通过计算时间a与时间c之间的时间差得到PTT,对于计算PTT的方法,本实施例在此不作限制。In this embodiment, assuming that the contraction of the heart and the pumping of blood are simultaneous, the pulse transit time (pulse transit time; PTT for short) can be calculated from the time difference between the R wave of the electrocardiogram and the rising point of the pulse, specifically Specifically, assuming that time a represents the position of the R-wave apex on the ECG signal on the time axis, and time b and time c represent the positions of a bottom point and a vertex on the photoplethysmography pulse signal on the time axis, then The PTT can be obtained by calculating the time difference between time a and time b, or the PTT can be obtained by calculating the time difference between time a and time c. The method for calculating the PTT is not limited in this embodiment.
步骤403、获取设备根据PTT确定实测血压。Step 403, the acquisition device determines the measured blood pressure according to the PTT.
在本实施例中,获取设备计算出PTT之后,根据公式即可计算出实测血压值Ps,其中,b1、b2和b3分别为系数,其与血管弹性和运动相关,TPTT为脉搏传播速度。In this embodiment, after the acquisition device calculates the PTT, according to the formula Then the measured blood pressure value P s can be calculated, where b 1 , b 2 and b 3 are coefficients, which are related to blood vessel elasticity and movement, and T PTT is the pulse propagation velocity.
本发明实施例提供的连续血压测量方法,获取设备通过获取心电信号和光体积变化描记脉搏信号,并根据心电信号和光体积变化描记脉搏信号确定实测血压,根据实测血压和确定预测血压的预估方程式,对预估方程式的系数进行误差校正,并根据校正后的预估方程式计算血压值。由于在获得实测 血压之后,获取设备根据与血压有关的相关参数和光体积变化描记脉搏信号对血压进行预测,并且利用实测血压对推算预测血压的预估方程式的系数进行校正,提高了连续血压测量的精确度。另外,获取设备在不增加额外硬件的情况下,可以结合测量的光体积变化描记脉搏信号确定出实测血压,简化了血压测量装置的复杂性,降低了成本,并且使连续血压检测的精度得到保障。In the continuous blood pressure measurement method provided by the embodiment of the present invention, the acquisition device obtains the electrocardiographic signal and the photoplethysmographic pulse signal, and determines the actual blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal, and determines the prediction of the predicted blood pressure according to the actual measured blood pressure and the An equation is used to perform error correction on the coefficients of the estimation equation, and calculate the blood pressure value according to the corrected estimation equation. Due to obtaining the measured After the blood pressure is obtained, the device predicts the blood pressure according to the relevant parameters related to the blood pressure and the photoplethysmographic pulse signal, and uses the measured blood pressure to correct the coefficients of the prediction equation for calculating the predicted blood pressure, which improves the accuracy of continuous blood pressure measurement. In addition, the acquisition device can combine the measured photoplethysmography pulse signal to determine the actual blood pressure without adding additional hardware, which simplifies the complexity of the blood pressure measurement device, reduces the cost, and ensures the accuracy of continuous blood pressure detection .
图5为本发明连续血压测量方法实施例五的流程示意图,本实施例在上述各实施例的基础上,对获取设备根据实测血压与确定预测血压的预估方程式,对预估方程式的系数进行校正的实施例,做详细说明。如图5所示,本实施例的方法可以包括:Fig. 5 is a schematic flow chart of Embodiment 5 of the continuous blood pressure measurement method of the present invention. On the basis of the above-mentioned embodiments, the acquisition device calculates the coefficients of the prediction equation according to the actual blood pressure and the prediction equation of the predicted blood pressure. The corrected embodiment will be described in detail. As shown in Figure 5, the method of this embodiment may include:
步骤501、获取设备对光体积变化描记脉搏信号进行二次微分,获得特征量。Step 501 , the acquisition device performs secondary differentiation on the photoplethysmography pulse signal to obtain feature quantities.
在本实施例中,获取设备可以在获取到光体积变化描记脉搏信号之后,通过对该光体积变化描记脉搏信号进行微分运算来获取特征量。在具体的实现过程中,可以通过对光体积变化描记脉搏信号进行两次微分来获取,其中,将光体积变化描记脉搏信号进行一次微分后,可以获得速度脉搏,接着进行二次微分后,可以获知加速度脉搏,继而可以获得特征量。In this embodiment, after acquiring the photoplethysmographic pulse signal, the acquiring device can acquire the feature quantity by performing a differential operation on the photoplethysmographic pulse signal. In the specific implementation process, it can be obtained by differentiating the photoplethysmography pulse signal twice, wherein, after the first differentiation of the photoplethysmography pulse signal, the speed pulse can be obtained, and then after the second differentiation, the velocity pulse can be obtained The acceleration pulse is obtained, and then the characteristic quantity can be obtained.
步骤502、获取设备根据特征量和预设的预估方程式,获得预测血压。Step 502, the obtaining device obtains the predicted blood pressure according to the feature quantity and the preset estimation equation.
在本实施例中,获取设备获得特征量之后,根据预先进行机器学习确定出的计算预测血压的预估方程式,便可以计算出预测血压了。In this embodiment, after the acquiring device acquires the feature value, the predicted blood pressure can be calculated according to the predictive equation for calculating the predicted blood pressure determined in advance through machine learning.
步骤503、获取设备根据实测血压和预测血压,对预设的预估方程式的系数进行校正。Step 503, the acquisition device corrects the coefficients of the preset estimation equation according to the measured blood pressure and the predicted blood pressure.
在本实施例中,获取设备在计算出预测血压之后,便可以结合确定出的的实测血压(例如:收缩压),进行多元回归分析,以校正计算预测血压的预估方程式的系数,其中,多元回归分析可以采用线性回归模型,即把与血压有关的各参数通过最小二乘估计来确定预估方程式的系数。在具体地实现过程中,根据输入数据将光体积变化描记脉搏信号进行分类,再对分类后的光体积变化描记脉搏信号进行多元回归分析之后,获得的预估方程式会有若干组(n),采用哪一组预估方程式进行本次血压的预测,是根据接收侧设备发送的实测血压进行确定的。具体地,可以将实测血压作为平均值X,假设计 算出的预测血压为Xi,其中,i为预测血压的个数(样本个数),通过计算实测血压X与预测血压Xi(样本)之间的标准方差Sn。迭代使用所有n组预估方程式,得到预测血压样本和X的标准方差Sn,若计算出的第j个预测血压对应的标准方差Sj为所有n组Sn中的最小值,则选择该组预估方程式(标准方差为Sj的)用于测量,其中,j小于或等于i。对于多元回归分析,也可以采用其他模型,本发明对此不作限制。In this embodiment, after the acquisition device calculates the predicted blood pressure, it can combine the determined actual blood pressure (for example: systolic blood pressure) to perform multiple regression analysis to correct the coefficients of the estimation equation for calculating the predicted blood pressure, wherein, Multiple regression analysis can use a linear regression model, that is, each parameter related to blood pressure is estimated by least squares to determine the coefficients of the prediction equation. In the specific implementation process, the photoplethysmography pulse signal is classified according to the input data, and then after multiple regression analysis is performed on the classified photoplethysmography pulse signal, the obtained estimation equation will have several groups (n), Which set of estimation equations is used to predict the blood pressure this time is determined according to the actual blood pressure sent by the receiving device. Specifically, the measured blood pressure can be taken as the average value X, and the predicted blood pressure calculated by the hypothetical design is Xi, where i is the number of predicted blood pressures (number of samples), by calculating the measured blood pressure X and the predicted blood pressure Xi ( sample) The standard deviation between S n . Iteratively use all n groups of prediction equations to obtain the standard deviation S n of the predicted blood pressure samples and X, if the calculated standard deviation S j corresponding to the jth predicted blood pressure is the minimum value among all n groups S n , then select this Group predictor equations (with standard deviation Sj ) are used for measurements where j is less than or equal to i. For multiple regression analysis, other models can also be used, which is not limited in the present invention.
本发明实施例提供的连续血压测量方法,获取设备通过获取心电信号和光体积变化描记脉搏信号,并根据心电信号和光体积变化描记脉搏信号确定实测血压,根据实测血压和确定预测血压的预估方程式,对预估方程式的系数进行误差校正,并根据校正后的预估方程式计算血压值。由于在获得实测血压之后,获取设备根据与血压有关的相关参数和光体积变化描记脉搏信号对血压进行预测,并且利用实测血压对推算预测血压的预估方程式的系数进行校正,提高了连续血压测量的精确度。In the continuous blood pressure measurement method provided by the embodiment of the present invention, the acquisition device obtains the electrocardiographic signal and the photoplethysmographic pulse signal, and determines the actual blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal, and determines the prediction of the predicted blood pressure according to the actual measured blood pressure and the An equation is used to perform error correction on the coefficients of the estimation equation, and calculate the blood pressure value according to the corrected estimation equation. After obtaining the measured blood pressure, the acquisition device predicts the blood pressure according to the relevant parameters related to the blood pressure and the photoplethysmography pulse signal, and uses the measured blood pressure to correct the coefficients of the estimation equation for predicting the predicted blood pressure, which improves the accuracy of continuous blood pressure measurement Accuracy.
图6为本发明连续血压测量方法实施例六的流程示意图。本发明实施例提供了一种连续血压测量方法,该方法可以由任意执行连续血压测量方法的装置来执行,该装置可以通过软件和/或硬件实现。本实施例中,该装置可以集成在接收侧设备中。如图6所示,本实施例的方法可以包括:Fig. 6 is a schematic flowchart of Embodiment 6 of the continuous blood pressure measurement method of the present invention. An embodiment of the present invention provides a continuous blood pressure measurement method, which can be executed by any device that implements the continuous blood pressure measurement method, and the device can be implemented by software and/or hardware. In this embodiment, the apparatus may be integrated into the receiving-side device. As shown in Figure 6, the method of this embodiment may include:
步骤601、接收侧设备获取心电信号和光体积变化描记脉搏信号。Step 601, the receiving-side device acquires ECG signals and photoplethysmographic pulse signals.
在本实施例中,也可以通过接收侧设备获取心电信号和光体积变化描记脉搏信号,其中,接收侧设备可以为各种移动终端,例如:手机、PAD等,接收侧设备可以通过心电传感器来获取心电信号,并通过脉搏传感器来获取光体积变化描记脉搏信号。In this embodiment, it is also possible to obtain the ECG signal and the photoplethysmography pulse signal through the receiving-side device, wherein the receiving-side device can be various mobile terminals, such as mobile phones, PADs, etc., and the receiving-side device can pass the ECG sensor to obtain the ECG signal, and obtain the photoplethysmography pulse signal through the pulse sensor.
步骤602、接收侧设备根据心电信号和光体积变化描记脉搏信号确定实测血压。Step 602, the receiving-side device determines the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal.
在本实施例中,接收侧设备获取到心电信号和光体积变化描记脉搏信号之后,根据心电信号和光体积变化描记脉搏信号,共同确定出用户的实测血压。In this embodiment, after the receiving-side device acquires the electrocardiographic signal and the photoplethysmographic pulse signal, it jointly determines the user's actual blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal.
步骤603、接收侧设备向发送侧设备发送实测血压,以供发送侧设备根据实测血压与确定预测血压的预估方程式,对预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。 Step 603: The receiving-side device sends the measured blood pressure to the sending-side device, so that the sending-side device can correct the coefficients of the predictive equation according to the measured blood pressure and the predictive equation for determining the predicted blood pressure, and calculate the blood pressure according to the corrected predictive equation value.
在本实施例中,发送侧设备可以为具有采集光体积变化描记脉搏信号的任何设备,如:智能手环、智能手表等。接收侧设备确定出实测血压之后,通过低功耗蓝牙(Bluetooth Low Energy;简称:BLE)将该实测血压发送给发送侧设备,发送侧设备可以根据实测血压和预设的预估方程式,对预估方程式的系数进行校正,校正完成之后,根据校正后的预估方程式计算血压值。In this embodiment, the sending-side device may be any device capable of collecting photoplethysmographic pulse signals, such as a smart bracelet, a smart watch, and the like. After the receiving-side device determines the measured blood pressure, it sends the measured blood pressure to the sending-side device through Bluetooth Low Energy (abbreviation: BLE). The coefficient of the estimated equation is corrected, and after the correction is completed, the blood pressure value is calculated according to the corrected estimated equation.
本发明实施例提供的连续血压测量方法,接收侧设备通过获取心电信号和光体积变化描记脉搏信号,根据心电信号和光体积变化描记脉搏信号确定实测血压,并将该实测血压发送给发送侧设备,以供发送侧设备根据实测血压与确定预测血压的预估方程式,对预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。由于在获得实测血压之后,发送侧设备根据与血压有关的相关参数和光体积变化描记脉搏信号对血压进行预测,并且利用实测血压对确定预测血压的预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值,从而提高了连续血压测量的精确度。In the continuous blood pressure measurement method provided by the embodiment of the present invention, the receiving side device obtains the electrocardiographic signal and the photoplethysmographic pulse signal, determines the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal, and sends the measured blood pressure to the sending side device , so that the sending-side device corrects the coefficients of the estimated equation according to the actual measured blood pressure and the estimated equation for determining the predicted blood pressure, and calculates the blood pressure value according to the corrected estimated equation. After obtaining the measured blood pressure, the sending device predicts the blood pressure according to the relevant parameters related to the blood pressure and the photoplethysmographic pulse signal, and uses the measured blood pressure to correct the coefficients of the prediction equation for determining the predicted blood pressure, and according to the corrected Predictive equations calculate blood pressure values, thereby improving the accuracy of continuous blood pressure measurements.
图7为本发明连续血压测量方法实施例七的流程示意图。本发明实施例提供了一种连续血压测量方法,该方法可以由任意执行连续血压测量方法的装置来执行,该装置可以通过软件和/或硬件实现。本实施例中,该装置可以集成在发送侧设备中。如图7所示,本实施例的方法可以包括:Fig. 7 is a schematic flowchart of Embodiment 7 of the continuous blood pressure measurement method of the present invention. An embodiment of the present invention provides a continuous blood pressure measurement method, which can be executed by any device that implements the continuous blood pressure measurement method, and the device can be implemented by software and/or hardware. In this embodiment, the apparatus may be integrated into the sending side device. As shown in Figure 7, the method of this embodiment may include:
步骤701、发送侧设备获取光体积变化描记脉搏信号,并将光体积变化描记脉搏信号发送给接收侧设备,以供接收侧设备根据获取的心电信号和光体积变化描记脉搏信号确定实测血压。Step 701. The transmitting device acquires the Pplethysmographic pulse signal, and sends the Pplethysmographic pulse signal to the receiving device, so that the receiving device can determine the measured blood pressure according to the acquired ECG signal and the Pplethysmographic pulse signal.
在本实施例中,发送侧设备可以为具有采集光体积变化描记脉搏信号的任何设备,如:智能手环、智能手表等。发送侧设备通过脉搏传感器获取到之后,不对该将光体积变化描记脉搏信号做任何处理,而是直接将其通过BLE发送给接收侧设备,接收侧设备根据接收到的光体积变化描记脉搏信号和自身获取到的心电信号,可以确定出用户的实测血压。其中,接收侧设备可以为各种移动终端,而且通过将ECG电极放置在接收侧设备的不同位置,以获取用户的心电信号。In this embodiment, the sending-side device may be any device capable of collecting photoplethysmographic pulse signals, such as a smart bracelet, a smart watch, and the like. After the sending device obtains the pulse signal through the pulse sensor, it does not do any processing on the photoplethysmography pulse signal, but directly sends it to the receiving side device through BLE, and the receiving side device records the pulse signal according to the received photoplethysmography and The ECG signal obtained by itself can determine the user's actual blood pressure. Wherein, the receiving-side device may be various mobile terminals, and by placing ECG electrodes at different positions of the receiving-side device, the user's electrocardiogram signal is acquired.
步骤702、发送侧设备接收接收侧设备发送的实测血压。Step 702, the sending-side device receives the measured blood pressure sent by the receiving-side device.
步骤703、发送侧设备根据实测血压与确定预测血压的预估方程式,对预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。 Step 703: The sending device corrects the coefficients of the estimated equation according to the measured blood pressure and the estimated equation determined to predict the predicted blood pressure, and calculates the blood pressure value according to the corrected estimated equation.
在本实施例中,发送侧设备的预估方程式的建立需要预先结合输入数据进行机器学习。其中,输入数据为与血压有关的参数,其包括以下至少之一:性别、体重、身高、日常脉搏、生活习惯、作息制度、心电图特征、服药状况,光体积变化描记脉搏信号的速度脉搏,加速度脉搏等。在具体地实现过程中,可以根据各参数对光体积变化描记脉搏信号进行分类,再对分类后的光体积变化描记脉搏信号进行多元回归分析,以获知各参数与血压之间的关系,从而确定出最合适的预估方程式,举例来说:在进行机器学习时,根据用户的服药状况将光体积变化描记脉搏信号进行分类,若用户没有服药,则继续根据用户的年龄分类……,最终,将光体积变化描记脉搏信号分为N类,分类之后,根据分类结果对光体积变化描记脉搏信号进行多元回归分析,得出各参数与血压之间的关系,从而得到预估方程式,即得出的计算预测血压的预估方程式:sBPe=f(t,Ci),其中,sBPe为预测血压,t为特征量,Ci为随机因素,Ci用于调整回归效果。In this embodiment, the establishment of the estimation equation of the sending-side device needs to be combined with the input data to perform machine learning in advance. Among them, the input data are parameters related to blood pressure, which include at least one of the following: gender, weight, height, daily pulse, living habits, work and rest schedule, electrocardiogram characteristics, medication status, speed pulse of photoplethysmographic pulse signal, acceleration pulse etc. In the specific implementation process, the photoplethysmography pulse signal can be classified according to each parameter, and then multiple regression analysis is performed on the classified photoplethysmography pulse signal to know the relationship between each parameter and blood pressure, so as to determine Find the most suitable estimation equation, for example: when performing machine learning, classify the photoplethysmography pulse signal according to the user's medication status, if the user is not taking medication, continue to classify according to the user's age... Finally, Divide the photoplethysmography pulse signal into N categories. After the classification, perform multiple regression analysis on the photoplethysmography pulse signal according to the classification results, and obtain the relationship between each parameter and blood pressure, so as to obtain the estimation equation, that is, The prediction equation for calculating the predicted blood pressure: sBPe=f(t, Ci), where sBPe is the predicted blood pressure, t is the feature quantity, Ci is a random factor, and Ci is used to adjust the regression effect.
其中,对于特征量、速度脉搏和加速度脉搏,发送侧设备可以在获取到光体积变化描记脉搏信号之后,通过对该光体积变化描记脉搏信号进行微分运算来获取。在具体的实现过程中,可以通过对光体积变化描记脉搏信号进行两次微分来获取特征量,其中,将光体积变化描记脉搏信号进行一次微分后,可以获得速度脉搏,接着进行二次微分后,可以获知加速度脉搏。Wherein, for the feature quantity, velocity pulse and acceleration pulse, the device at the sending side may obtain the photoplethysmographic pulse signal by performing a differential operation on the photoplethysmographic pulse signal after obtaining it. In the specific implementation process, the characteristic quantity can be obtained by differentiating the photoplethysmography pulse signal twice, wherein, after the first differentiation of the photoplethysmography pulse signal, the velocity pulse can be obtained, and then after the second differentiation , you can get the acceleration pulse.
发送侧设备根据确定出的预估方程式,计算出预测血压之后,根据接收到实测血压与计算出的预测血压,对预估方程式的系数进行校正,校正完成之后,根据校正后的预估方程式计算血压值。After calculating the predicted blood pressure according to the determined predictive equation, the transmitting device corrects the coefficients of the predictive equation according to the received measured blood pressure and the calculated predicted blood pressure. After the correction is completed, it calculates according to the corrected predictive equation blood pressure value.
本发明实施例提供的连续血压测量方法,发送侧设备获取光体积变化描记脉搏信号,并将光体积变化描记脉搏信号发送给接收侧设备,以供接收侧设备根据获取的心电信号和光体积变化描记脉搏信号确定实测血压,接收接收侧设备发送的实测血压,并根据实测血压与确定预测血压的预估方程式,对预设的预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。由于在获得实测血压之后,发送侧设备根据实测血压对预估方程式的系数进行误差校正,以计算出血压值,从而可以提高连续血压测量的精确度。In the continuous blood pressure measurement method provided by the embodiment of the present invention, the sending side device obtains the photoplethysmographic pulse signal, and sends the photoplethysmographic pulse signal to the receiving side device, so that the receiving side device can use the obtained electrocardiogram signal and photovolume change Tracing the pulse signal to determine the measured blood pressure, receiving the measured blood pressure sent by the receiving device, and correcting the coefficients of the preset predictive equation according to the measured blood pressure and determining the predictive equation of the predicted blood pressure, and calculating according to the corrected predictive equation blood pressure value. After obtaining the measured blood pressure, the transmitting device performs error correction on the coefficients of the estimation equation according to the measured blood pressure to calculate the blood pressure value, thereby improving the accuracy of continuous blood pressure measurement.
图8为本发明连续血压测量装置实施例一的结构示意图,如图8所示,本发明实施例提供的连续血压测量装置包括获取模块11,确定模块12和处 理模块13。Fig. 8 is a schematic structural diagram of Embodiment 1 of the continuous blood pressure measurement device of the present invention. As shown in Fig. 8, the continuous blood pressure measurement device provided by the embodiment of the present invention includes an acquisition module 11, a determination module 12 and a processing management module 13.
其中,获取模块11用于获取心电信号和光体积变化描记脉搏信号;确定模块12用于根据所述心电信号和所述光体积变化描记脉搏信号确定实测血压;处理模块13用于根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。Wherein, the obtaining module 11 is used to obtain the electrocardiographic signal and the photoplethysmographic pulse signal; the determination module 12 is used to determine the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal; the processing module 13 is used to determine the measured blood pressure according to the described The actual blood pressure is measured and the predictive equation for predicting the blood pressure is determined, the coefficients of the predictive equation are corrected, and the blood pressure value is calculated according to the corrected predictive equation.
本发明实施例提供的连续血压测量装置,获取设备获取心电信号和光体积变化描记脉搏信号,根据心电信号和光体积变化描记脉搏信号确定实测血压,并根据实测血压和确定预测血压的预估方程式,对预估方程式的系数进行误差校正,并根据校正后的预估方程式计算血压值。由于在获得实测血压之后,根据与血压有关的相关参数和光体积变化描记脉搏信号对血压进行预测,并且利用实测血压对确定预测血压的预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值,从而提高了连续测量血压时的精确度。In the continuous blood pressure measurement device provided by the embodiment of the present invention, the acquisition device acquires the electrocardiographic signal and the photoplethysmographic pulse signal, determines the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal, and determines the prediction equation for predicting the blood pressure according to the measured blood pressure and the , performing error correction on the coefficients of the estimation equation, and calculating the blood pressure value according to the corrected estimation equation. After the measured blood pressure is obtained, the blood pressure is predicted according to the relevant parameters related to the blood pressure and the photoplethysmographic pulse signal, and the coefficients of the prediction equation for determining the predicted blood pressure are corrected by using the measured blood pressure, and according to the corrected prediction equation Calculate the blood pressure value, thereby improving the accuracy of continuous blood pressure measurement.
图9为本发明连续血压测量装置实施例二的结构示意图,如图9所示,本实施例在图8所示实施例的基础上,所述获取模块11包括:Fig. 9 is a schematic structural diagram of Embodiment 2 of the continuous blood pressure measurement device of the present invention. As shown in Fig. 9, this embodiment is based on the embodiment shown in Fig. 8, and the acquisition module 11 includes:
第一采集单元111用于通过心电传感器采集心电波;The first collection unit 111 is used for collecting electrocardiogram through the electrocardiogram sensor;
第一处理单元112用于对所述心电波进行快速傅里叶变换FFT处理,获得处理信号;The first processing unit 112 is configured to perform fast Fourier transform (FFT) processing on the electrocardiogram to obtain a processed signal;
所述第一处理单元112还用于对所述处理信号进行去除噪声处理,获得所述心电信号。The first processing unit 112 is further configured to perform noise removal processing on the processed signal to obtain the ECG signal.
本实施例的连续血压测量的装置,可以用于执行本发明任意实施例所提供的连续血压测量的方法的技术方案,其实现原理和技术效果类似,此处不再赘述。The device for continuous blood pressure measurement of this embodiment can be used to implement the technical solution of the method for continuous blood pressure measurement provided by any embodiment of the present invention, and its implementation principle and technical effect are similar, and will not be repeated here.
图10为本发明连续血压测量装置实施例三的结构示意图,如图10所示,本实施例在上述各实施例的基础上,所述获取模块11包括:Fig. 10 is a schematic structural diagram of the third embodiment of the continuous blood pressure measurement device of the present invention. As shown in Fig. 10, this embodiment is based on the above-mentioned embodiments, and the acquisition module 11 includes:
第二采集单元113用于通过脉搏传感器采集脉搏波;The second collection unit 113 is used to collect pulse waves through the pulse sensor;
第二处理单元114用于对所述脉搏波进行快速傅里叶变换FFT处理,获得处理信号;The second processing unit 114 is configured to perform fast Fourier transform (FFT) processing on the pulse wave to obtain a processed signal;
所述第二处理单元114用于对所述处理信号进行去除噪声处理,获得所述光体积变化描记脉搏信号。The second processing unit 114 is configured to perform noise removal processing on the processed signal to obtain the photoplethysmographic pulse signal.
本实施例的连续血压测量的装置,可以用于执行本发明任意实施例所提 供的连续血压测量的方法的技术方案,其实现原理和技术效果类似,此处不再赘述。The device for continuous blood pressure measurement in this embodiment can be used to implement the The technical solution of the method for continuous blood pressure measurement provided is similar in principle and technical effect, and will not be repeated here.
图11为本发明连续血压测量装置实施例四的结构示意图,如图11所示,本实施例在上述各实施例的基础上,所述确定模块12包括:Fig. 11 is a schematic structural diagram of Embodiment 4 of the continuous blood pressure measurement device of the present invention. As shown in Fig. 11 , this embodiment is based on the above-mentioned embodiments, and the determination module 12 includes:
同步单元121用于将所述心电信号和所述光体积变化描记脉搏信号进行同步,获得同步信号;The synchronization unit 121 is used to synchronize the electrocardiographic signal and the photoplethysmography pulse signal to obtain a synchronization signal;
计算单元122用于根据所述同步信号,计算脉搏传输时间PTT;The calculation unit 122 is used to calculate the pulse transit time PTT according to the synchronization signal;
确定单元123用于根据所述PTT确定实测血压。The determining unit 123 is configured to determine the measured blood pressure according to the PTT.
可选地,所述处理模块13包括:Optionally, the processing module 13 includes:
获取单元131用于对所述光体积变化描记脉搏信号进行二次微分,获得特征量;The acquiring unit 131 is configured to perform quadratic differentiation on the photoplethysmographic pulse signal to obtain feature quantities;
所述获取单元131用于根据所述特征量和预设的预估方程式,获得预测血压;The acquisition unit 131 is used to obtain predicted blood pressure according to the feature quantity and a preset estimation equation;
校正单元132用于根据所述实测血压和所述预测血压,对所述预设的预估方程式的系数进行校正。The correction unit 132 is configured to correct the coefficients of the preset estimation equation according to the measured blood pressure and the predicted blood pressure.
本实施例的连续血压测量的装置,可以用于执行本发明任意实施例所提供的连续血压测量的方法的技术方案,其实现原理和技术效果类似,此处不再赘述。The device for continuous blood pressure measurement of this embodiment can be used to implement the technical solution of the method for continuous blood pressure measurement provided by any embodiment of the present invention, and its implementation principle and technical effect are similar, and will not be repeated here.
图12为本发明连续血压测量装置实施例五的结构示意图,如图12所示,本发明实施例提供的连续血压测量装置包括获取模块21,确定模块22和发送模块23。FIG. 12 is a schematic structural diagram of Embodiment 5 of the continuous blood pressure measurement device of the present invention. As shown in FIG.
其中,获取模块21用于获取心电信号和光体积变化描记脉搏信号;确定模块22用于根据所述心电信号和所述光体积变化描记脉搏信号确定实测血压;发送模块23用于向发送侧设备发送所述实测血压,以供所述发送侧设备根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。Wherein, the obtaining module 21 is used for obtaining the electrocardiographic signal and the photoplethysmographic pulse signal; the determination module 22 is used for determining the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal; the sending module 23 is used for sending the The device sends the measured blood pressure, so that the sending side device corrects the coefficients of the predicted equation according to the measured blood pressure and the predicted equation for determining the predicted blood pressure, and calculates the blood pressure value according to the corrected predicted equation .
本发明实施例提供的连续血压测量装置,接收侧设备通过获取心电信号和光体积变化描记脉搏信号,根据心电信号和光体积变化描记脉搏信号确定实测血压,并将该实测血压发送给发送侧设备,以供发送侧设备根据实测血压与确定预测血压的预估方程式,对预估方程式的系数进行校正,并根据校 正后的预估方程式计算血压值。由于在获得实测血压之后,发送侧设备根据与血压有关的相关参数和光体积变化描记脉搏信号对血压进行预测,并且利用实测血压对确定预测血压的预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值,从而提高了连续血压测量的精确度。In the continuous blood pressure measurement device provided by the embodiment of the present invention, the receiving side device obtains the electrocardiographic signal and the photoplethysmographic pulse signal, determines the actual blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal, and sends the measured blood pressure to the sending side device , so that the sending side device can correct the coefficients of the estimated equation according to the measured blood pressure and the estimated equation determined to predict the predicted blood pressure, and according to the calibration Positive post-estimated equations to calculate blood pressure values. After obtaining the measured blood pressure, the sending device predicts the blood pressure according to the relevant parameters related to the blood pressure and the photoplethysmographic pulse signal, and uses the measured blood pressure to correct the coefficients of the prediction equation for determining the predicted blood pressure, and according to the corrected Predictive equations calculate blood pressure values, thereby improving the accuracy of continuous blood pressure measurements.
图13为本发明连续血压测量装置实施例六的结构示意图,如图13所示,本发明实施例提供的连续血压测量装置包括获取模块31,发送模块32、接收模块33和处理模块34。FIG. 13 is a schematic structural diagram of Embodiment 6 of the continuous blood pressure measurement device of the present invention. As shown in FIG.
其中,获取模块31用于获取光体积变化描记脉搏信号;发送模块32用于将所述光体积变化描记脉搏信号发送给接收侧设备,以供所述接收侧设备根据获取的心电信号和所述光体积变化描记脉搏信号确定实测血压;接收模块33用于接收所述接收侧设备发送的所述实测血压;处理模块34用于根据所述实测血压与确定预测血压的预估方程式,对预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。Wherein, the acquiring module 31 is used to acquire the photoplethysmographic pulse signal; the sending module 32 is used to send the photoplethysmographic pulse signal to the receiving side device, so that the receiving side device can use the acquired electrocardiogram signal and the The photoplethysmographic pulse signal is used to determine the actual measured blood pressure; the receiving module 33 is used to receive the actual measured blood pressure sent by the receiving side device; The coefficient of the estimated equation is corrected, and the blood pressure value is calculated according to the corrected estimated equation.
本发明实施例提供的连续血压测量装置,发送侧设备获取光体积变化描记脉搏信号,并将光体积变化描记脉搏信号发送给接收侧设备,以供接收侧设备根据获取的心电信号和光体积变化描记脉搏信号确定实测血压,接收接收侧设备发送的实测血压,并根据实测血压与确定预测血压的预估方程式,对预设的预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。由于在获得实测血压之后,发送侧设备根据实测血压对预估方程式的系数进行误差校正,以计算出血压值,从而可以提高连续血压测量的精确度。In the continuous blood pressure measurement device provided by the embodiment of the present invention, the sending side device obtains the photoplethysmographic pulse signal, and sends the photoplethysmographic pulse signal to the receiving side device, so that the receiving side device can use the obtained electrocardiogram signal and photovolume change Tracing the pulse signal to determine the measured blood pressure, receiving the measured blood pressure sent by the receiving device, and correcting the coefficients of the preset predictive equation according to the measured blood pressure and determining the predictive equation of the predicted blood pressure, and calculating according to the corrected predictive equation blood pressure value. After obtaining the measured blood pressure, the transmitting device performs error correction on the coefficients of the estimation equation according to the measured blood pressure to calculate the blood pressure value, thereby improving the accuracy of continuous blood pressure measurement.
图14为本发明获取设备实施例一的结构示意图,如图14所示,本发明实施例提供的获取设备包括接收器41和处理器42。FIG. 14 is a schematic structural diagram of Embodiment 1 of the acquisition device of the present invention. As shown in FIG. 14 , the acquisition device provided by the embodiment of the present invention includes a receiver 41 and a processor 42 .
其中,接收器41用于获取心电信号和光体积变化描记脉搏信号;处理器42用于根据所述心电信号和所述光体积变化描记脉搏信号确定实测血压;所述处理器42还用于根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。Wherein, the receiver 41 is used to obtain the electrocardiographic signal and the photoplethysmographic pulse signal; the processor 42 is used to determine the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal; the processor 42 is also used to According to the measured blood pressure and the estimated equation for determining the predicted blood pressure, the coefficients of the estimated equation are corrected, and the blood pressure value is calculated according to the corrected estimated equation.
本实施例提供的获取设备,可以用于执行本发明任意实施例所提供的连续血压测量的方法的技术方案,其实现原理和技术效果类似,此处不再赘述。The acquisition device provided in this embodiment can be used to implement the technical solution of the method for continuous blood pressure measurement provided in any embodiment of the present invention, and its implementation principle and technical effect are similar, and will not be repeated here.
可选地,所述接收器41还用于通过心电传感器采集心电波;Optionally, the receiver 41 is also used to collect electrocardiograms through an electrocardiogram sensor;
所述处理器42还用于对所述心电波进行快速傅里叶变换FFT处理,获 得处理信号;The processor 42 is also used to perform fast Fourier transform (FFT) processing on the electrocardiogram to obtain have to process the signal;
所述处理器42还用于对所述处理信号进行去除噪声处理,获得所述心电信号。The processor 42 is also configured to remove noise from the processed signal to obtain the ECG signal.
可选地,所述接收器41还用于通过脉搏传感器采集脉搏波;Optionally, the receiver 41 is also used to collect pulse waves through a pulse sensor;
所述处理器42还用于对所述脉搏波进行快速傅里叶变换FFT处理,获得处理信号;The processor 42 is also used to perform fast Fourier transform (FFT) processing on the pulse wave to obtain a processed signal;
所述处理器42还用于对所述处理信号进行去除噪声处理,获得所述光体积变化描记脉搏信号。The processor 42 is further configured to perform noise removal processing on the processed signal to obtain the photoplethysmographic pulse signal.
可选地,所述处理器42还用于将所述心电信号和所述光体积变化描记脉搏信号进行同步,获得同步信号;Optionally, the processor 42 is further configured to synchronize the electrocardiographic signal and the photoplethysmographic pulse signal to obtain a synchronization signal;
所述处理器42还用于根据所述同步信号,计算脉搏传输时间PTT;The processor 42 is also used to calculate the pulse transit time PTT according to the synchronization signal;
所述处理器42还用于根据所述PTT确定实测血压。The processor 42 is also used to determine the measured blood pressure according to the PTT.
所述处理器42还用于对所述光体积变化描记脉搏信号进行二次微分,获得特征量;The processor 42 is also used to perform secondary differentiation on the photoplethysmographic pulse signal to obtain feature quantities;
所述处理器42还用于根据所述特征量和预设的预估方程式,获得预测血压;The processor 42 is further configured to obtain predicted blood pressure according to the feature quantity and a preset estimation equation;
所述处理器42还用于根据所述实测血压和所述预测血压,对所述预设的预估方程式的系数进行校正。The processor 42 is further configured to correct the coefficients of the preset estimation equation according to the measured blood pressure and the predicted blood pressure.
本实施例提供的获取设备,可以用于执行本发明任意实施例所提供的连续血压测量的方法的技术方案,其实现原理和技术效果类似,此处不再赘述。The acquisition device provided in this embodiment can be used to implement the technical solution of the method for continuous blood pressure measurement provided in any embodiment of the present invention, and its implementation principle and technical effect are similar, and will not be repeated here.
图15为本发明接收侧设备实施例一的结构示意图,如图15所示,本发明实施例提供的发送侧设备包括接收器51、处理器52和发送器53。FIG. 15 is a schematic structural diagram of Embodiment 1 of the receiving-side device of the present invention. As shown in FIG. 15 , the sending-side device provided by the embodiment of the present invention includes a receiver 51 , a processor 52 and a transmitter 53 .
接收器51用于获取心电信号和光体积变化描记脉搏信号;处理器52用于根据所述心电信号和所述光体积变化描记脉搏信号确定实测血压;发送器53用于向发送侧设备发送所述实测血压,以供所述发送侧设备根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。The receiver 51 is used to obtain the electrocardiographic signal and the photoplethysmographic pulse signal; the processor 52 is used to determine the measured blood pressure according to the electrocardiographic signal and the photoplethysmographic pulse signal; the transmitter 53 is used to send The actual measured blood pressure is used for the sending side device to correct the coefficients of the estimated equation according to the actual measured blood pressure and the estimated equation for determining the predicted blood pressure, and calculate the blood pressure value according to the corrected estimated equation.
本实施例提供的获取设备,可以用于执行本发明任意实施例所提供的连续血压测量的方法的技术方案,其实现原理和技术效果类似,此处不再赘述。The acquisition device provided in this embodiment can be used to implement the technical solution of the method for continuous blood pressure measurement provided in any embodiment of the present invention, and its implementation principle and technical effect are similar, and will not be repeated here.
图16为本发明发送侧设备实施例一的结构示意图,如图16所示,本发 明实施例提供的发送侧设备包括接收器61、发送器62和处理器63。Fig. 16 is a schematic structural diagram of Embodiment 1 of the device on the sending side of the present invention. As shown in Fig. 16, the present invention The sending side device provided in this embodiment includes a receiver 61 , a transmitter 62 and a processor 63 .
其中,接收器61用于获取光体积变化描记脉搏信号;发送器62用于将所述光体积变化描记脉搏信号发送给接收侧设备,以供所述接收侧设备根据心电信号和所述光体积变化描记脉搏信号确定出实测血压;所述接收器61用于接收所述接收侧设备发送的所述实测血压;处理器63用于根据所述实测血压与确定预测血压的预估方程式,对所述预估方程式的系数进行校正,并根据校正后的预估方程式计算血压值。Wherein, the receiver 61 is used to obtain the photoplethysmographic pulse signal; the transmitter 62 is used to send the photoplethysmographic pulse signal to the receiving side device, so that the receiving side device can obtain the photoplethysmographic pulse signal according to the electrocardiographic signal and the optical pulse signal. The plethysmography pulse signal determines the measured blood pressure; the receiver 61 is used to receive the measured blood pressure sent by the receiving device; the processor 63 is used to determine the estimated blood pressure according to the measured blood pressure and the predictive equation for predicting the blood pressure. The coefficients of the predictive equation are corrected, and the blood pressure value is calculated according to the corrected predictive equation.
本实施例提供的发送侧设备,可以用于执行本发明任意实施例所提供的连续血压测量的方法的技术方案,其实现原理和技术效果类似,此处不再赘述。The sending-side device provided in this embodiment can be used to implement the technical solution of the method for continuous blood pressure measurement provided in any embodiment of the present invention, and its implementation principle and technical effect are similar, and will not be repeated here.
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。上述描述的系统,装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。Those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to needs. The internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the above-described system, device, and unit, reference may be made to the corresponding process in the foregoing method embodiments, and details are not repeated here.
在本申请所提供的几个实施例中,应该理解到,所揭露的系统,装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述模块或单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be Incorporation may either be integrated into another system, or some features may be omitted, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。 In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or part of the contribution to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc., which can store program codes. .
以上所述,以上实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。 As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still understand the foregoing The technical solutions described in each embodiment are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the application.
Claims (21)
- A kind of continuous BP measurement method, it is characterised in that including:Obtain equipment acquisition electrocardiosignal and light Volume Changes trace pulse signal;The acquisition equipment traces pulse signal according to the electrocardiosignal and the smooth Volume Changes and determines actual measurement blood pressure;The predicting equation formula that equipment is obtained according to the actual measurement blood pressure with determining pre- measuring blood pressure, is corrected, and calculate pressure value according to the predicting equation formula after correction to the coefficient of the predicting equation formula.
- According to the method described in claim 1, it is characterised in that it is described acquisition equipment obtain electrocardiosignal, including:The acquisition equipment gathers electrocardio ripple by EGC sensor;The acquisition equipment carries out Fast Fourier Transform (FFT) FFT processing to the electrocardio ripple, obtains process signal;The acquisition equipment is removed noise processed to the process signal, obtains the electrocardiosignal.
- Method according to claim 1 or 2, it is characterised in that the acquisition equipment obtains light Volume Changes and traces pulse signal, including:The acquisition equipment gathers pulse wave by pulse transducer;The acquisition equipment carries out Fast Fourier Transform (FFT) FFT processing to the pulse wave, obtains process signal;The acquisition equipment is removed noise processed to the process signal, obtains the smooth Volume Changes and traces pulse signal.
- Method according to claim any one of 1-3, it is characterised in that the acquisition equipment traces pulse signal according to the electrocardiosignal and the smooth Volume Changes and determines actual measurement pressure value, including:The electrocardiosignal and the smooth Volume Changes are traced pulse signal and synchronized by the acquisition equipment, obtain synchronizing signal;The acquisition equipment calculates pulse transit time PTT according to the synchronizing signal;The acquisition equipment determines actual measurement blood pressure according to the PTT.
- Method according to claim any one of 1-4, it is characterised in that predicting equation formula of the acquisition equipment according to the actual measurement blood pressure with determining pre- measuring blood pressure, is corrected to the coefficient of the predicting equation formula, including:The acquisition equipment traces pulse signal to the smooth Volume Changes and carries out second differential, obtains feature Amount;The acquisition equipment obtains pre- measuring blood pressure according to the characteristic quantity and default predicting equation formula;The acquisition equipment is corrected according to the actual measurement blood pressure and the pre- measuring blood pressure to the coefficient of the default predicting equation formula.
- A kind of continuous BP measurement method, it is characterised in that including:Receive side apparatus acquisition electrocardiosignal and light Volume Changes trace pulse signal;The reception side apparatus traces pulse signal according to the electrocardiosignal and the smooth Volume Changes and determines actual measurement blood pressure;The reception side apparatus sends the actual measurement blood pressure to side apparatus is sent, predicting equation formula for the transmission side apparatus according to the actual measurement blood pressure with determining pre- measuring blood pressure, the coefficient of the predicting equation formula is corrected, and pressure value is calculated according to the predicting equation formula after correction.
- A kind of method of continuous BP measurement, it is characterised in that including:Send side apparatus acquisition light Volume Changes and trace pulse signal, and the smooth Volume Changes are traced into pulse signal be sent to reception side apparatus, tracing pulse signal according to the electrocardiosignal and the smooth Volume Changes of acquisition for the reception side apparatus determines actual measurement blood pressure;The side apparatus that sends receives the actual measurement blood pressure for receiving side apparatus transmission;The predicting equation formula that side apparatus is sent according to the actual measurement blood pressure with determining pre- measuring blood pressure, is corrected, and calculate pressure value according to the predicting equation formula after correction to the coefficient of the predicting equation formula.
- A kind of continuous blood pressure measurer, it is characterised in that including:Acquisition module, pulse signal is traced for obtaining electrocardiosignal and light Volume Changes;Determining module, actual measurement blood pressure is determined for tracing pulse signal according to the electrocardiosignal and the smooth Volume Changes;Processing module, for the predicting equation formula according to the actual measurement blood pressure with determining pre- measuring blood pressure, is corrected, and calculate pressure value according to the predicting equation formula after correction to the coefficient of the predicting equation formula.
- Device according to claim 8, it is characterised in that the acquisition module includes:First collecting unit, for gathering electrocardio ripple by EGC sensor;First processing units, for carrying out Fast Fourier Transform (FFT) FFT processing to the electrocardio ripple, obtain process signal;The first processing units, are additionally operable to be removed the process signal noise processed, obtain the electrocardiosignal.
- Device according to claim 8 or claim 9, it is characterised in that the acquisition module includes:Second collecting unit, for gathering pulse wave by pulse transducer;Second processing unit, for carrying out Fast Fourier Transform (FFT) FFT processing to the pulse wave, obtains process signal;The second processing unit, for being removed noise processed to the process signal, obtains the smooth Volume Changes and traces pulse signal.
- Device according to claim any one of 8-10, it is characterised in that the determining module includes:Synchronization unit, for tracing pulse signal and synchronizing the electrocardiosignal and the smooth Volume Changes, obtains synchronizing signal;Computing unit, for according to the synchronizing signal, calculating pulse transit time PTT;Determining unit, for determining actual measurement blood pressure according to the PTT.
- Device according to claim any one of 8-11, it is characterised in that the processing module includes:Acquiring unit, carries out second differential for the smooth Volume Changes to be traced with pulse signal, obtains characteristic quantity;The acquiring unit, for according to the characteristic quantity and default predicting equation formula, obtaining pre- measuring blood pressure;Unit is corrected, for according to the actual measurement blood pressure and the pre- measuring blood pressure, being corrected to the coefficient of the default predicting equation formula.
- A kind of device of continuous BP measurement, it is characterised in that including:Acquisition module, pulse signal is traced for obtaining electrocardiosignal and light Volume Changes;Determining module, actual measurement blood pressure is determined for tracing pulse signal according to the electrocardiosignal and the smooth Volume Changes;Sending module, for sending the actual measurement blood pressure to transmission side apparatus, predicting equation formula for the transmission side apparatus according to the actual measurement blood pressure with determining pre- measuring blood pressure, is corrected to the coefficient of the predicting equation formula, and calculates pressure value according to the predicting equation formula after correction.
- A kind of device of continuous BP measurement, it is characterised in that including:Acquisition module, pulse signal is traced for obtaining light Volume Changes;Sending module, reception side apparatus is sent to for the smooth Volume Changes to be traced into pulse signal, with Pulse signal is traced according to the electrocardiosignal and the smooth Volume Changes of acquisition for the reception side apparatus and determines actual measurement blood pressure;Receiving module, for receiving the actual measurement blood pressure that the reception side apparatus is sent;Processing module, for the predicting equation formula according to the actual measurement blood pressure with determining pre- measuring blood pressure, is corrected, and calculate pressure value according to the predicting equation formula after correction to the coefficient of the predicting equation formula.
- One kind obtains equipment, it is characterised in that including:Receiver, pulse signal is traced for obtaining electrocardiosignal and light Volume Changes;Processor, actual measurement blood pressure is determined for tracing pulse signal according to the electrocardiosignal and the smooth Volume Changes;The processor, is additionally operable to the predicting equation formula with determining pre- measuring blood pressure according to the actual measurement blood pressure, the coefficient of the predicting equation formula is corrected, and calculate pressure value according to the predicting equation formula after correction.
- Acquisition equipment according to claim 15, it is characterised in thatThe receiver, is additionally operable to gather electrocardio ripple by EGC sensor;The processor, is additionally operable to carry out Fast Fourier Transform (FFT) FFT processing to the electrocardio ripple, obtains process signal;The processor, is additionally operable to be removed the process signal noise processed, obtains the electrocardiosignal.
- Acquisition equipment according to claim 15 or 16, it is characterised in thatThe receiver, is additionally operable to gather pulse wave by pulse transducer;The processor, is additionally operable to carry out Fast Fourier Transform (FFT) FFT processing to the pulse wave, obtains process signal;The processor, is additionally operable to be removed the process signal noise processed, obtains the smooth Volume Changes and traces pulse signal.
- Acquisition equipment according to claim any one of 15-17, it is characterised in thatThe processor, is additionally operable to that the electrocardiosignal and the smooth Volume Changes are traced pulse signal and synchronized, and obtains synchronizing signal;The processor, is additionally operable to, according to the synchronizing signal, calculate pulse transit time PTT;The processor, is additionally operable to determine actual measurement blood pressure according to the PTT.
- Acquisition equipment according to claim any one of 15-18, it is characterised in thatThe processor, is additionally operable to trace the smooth Volume Changes pulse signal progress second differential, obtains Obtain characteristic quantity;The processor, is additionally operable to, according to the characteristic quantity and default predicting equation formula, obtain pre- measuring blood pressure;The processor, is additionally operable to, according to the actual measurement blood pressure and the pre- measuring blood pressure, be corrected the coefficient of the default predicting equation formula.
- One kind receives side apparatus, it is characterised in that including:Receiver, pulse signal is traced for obtaining electrocardiosignal and light Volume Changes;Processor, actual measurement blood pressure is determined for tracing pulse signal according to the electrocardiosignal and the smooth Volume Changes;Transmitter, for sending the actual measurement blood pressure to transmission side apparatus, predicting equation formula for the transmission side apparatus according to the actual measurement blood pressure with determining pre- measuring blood pressure, is corrected to the coefficient of the predicting equation formula, and calculates pressure value according to the predicting equation formula after correction.
- One kind sends side apparatus, it is characterised in that including:Receiver, pulse signal is traced for obtaining light Volume Changes;Transmitter, reception side apparatus is sent to for the smooth Volume Changes to be traced into pulse signal, and tracing pulse signal according to electrocardiosignal and the smooth Volume Changes for the reception side apparatus determines actual measurement blood pressure;The receiver, for receiving the actual measurement blood pressure that the reception side apparatus is sent;Processor, for the predicting equation formula according to the actual measurement blood pressure with determining pre- measuring blood pressure, is corrected, and calculate pressure value according to the predicting equation formula after correction to the coefficient of the predicting equation formula.
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CN113470805A (en) * | 2020-03-15 | 2021-10-01 | 英业达科技有限公司 | Method for establishing blood pressure model |
TWI733378B (en) * | 2020-03-18 | 2021-07-11 | 英業達股份有限公司 | Method of establishing blood pressure model |
CN114145724A (en) * | 2021-12-08 | 2022-03-08 | 四川北易信息技术有限公司 | Method for dynamically monitoring blood pressure based on ECG (electrocardiogram) and PPG (photoplethysmography) multiple physiological characteristic parameters |
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