CN106308769A - Pulse wave diagnosis system with respiratory wave acquisition function - Google Patents

Abstract

The invention discloses a pulse wave diagnostic system with respiratory wave acquisition, comprising a pulse wave sensor, a respiratory wave acquisition device, a processing device and a diagnosis device, the pulse wave sensor is used to acquire the pulse wave of a person to be tested; the respiratory wave acquisition device It is used to obtain the respiratory wave synchronized with the pulse wave of the person to be tested; the processing device is used to extract the time domain and frequency domain characteristic parameters of the pulse wave and respiratory wave; the diagnostic device is used to obtain the pulse condition diagnosis result according to the characteristic parameters. By processing the obtained respiratory wave and pulse wave signals, the present invention can give the relationship between respiratory wave and pulse wave, such as "one breath and several times" according to the traditional Chinese medicine theory, so that the physiological information related to pulse diagnosis can be extracted more comprehensively. , which provides a new possibility for pulse wave research, especially the research on the relationship between pulse wave and cardiopulmonary function.

Description

A Pulse Wave Diagnosis System Combined with Respiratory Wave Acquisition

technical field

The invention relates to a pulse wave diagnosis system, in particular to a pulse wave diagnosis system with respiratory wave acquisition.

Background technique

The pulse wave is formed by the periodic pulse of the heart propagating along the arterial vessels and blood flow to the periphery. The propagation process of the pulse wave is not only affected by the heart itself, but also by the condition of the arteries and surrounding tissues and organs along the way, which contains rich physiological and pathological information of the human body. With the development of pulse wave non-invasive detection technology, the study of pulse wave has been paid attention by Chinese and foreign medical circles.

In the traditional Chinese medicine pulse diagnosis, while obtaining the pulse information by taking the pulse, "the number of pulses between one breath" is used as the diagnostic standard for the pulse wave speed. said. Among them, "one breath" means one breath and one breath. It can be seen that the collection of respiratory waves has important clinical significance for pulse diagnosis in traditional Chinese medicine. However, the current pulse wave diagnosis system generally only collects pulse waves through sensors, and extracts time-domain or frequency-domain characteristic parameters for analysis and research according to the amplitude and time characteristics of pulse waves, and does not include respiratory wave information. Such a pulse diagnosis system cannot reproduce the pulse diagnosis basis of traditional pulse diagnosis of "one breath and several arrivals", which is not conducive to accurate diagnosis of pulse conditions, and hinders comprehensive and in-depth research on pulse waves to a certain extent.

Contents of the invention

(1) Technical problems to be solved

The purpose of the present invention is to provide a pulse wave diagnosis system, especially to provide a more comprehensive pulse wave diagnosis system through the acquisition of respiratory wave information.

(2) Technical solution

In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

A pulse wave diagnostic system with respiratory wave acquisition, comprising a pulse wave sensor, a respiratory wave acquisition device, a processing device and a diagnostic device, wherein the pulse wave sensor is used to collect the pulse wave of a person to be tested; the respiratory wave The obtaining device is used to obtain the respiratory wave of the person to be tested in synchronization with its pulse wave; the processing device is used to extract the time domain and frequency domain characteristic parameters of the pulse wave and respiratory wave; the diagnostic device is used to parameter to obtain the pulse diagnosis result.

The pulse wave sensor is a pulse wave sensor that collects pulse waves at a single location in a certain area around the human body within a certain period of time. Alternatively, the pulse wave sensor is an array pulse wave sensor that collects pulse waves synchronously at multiple positions in a certain area around the human body within a certain period of time, including pressure sensors, noninvasive multi-point monitoring in a certain area on the human body surface A multi-channel array pulse wave sensor for synchronous pulse wave acquisition, etc.

The respiratory wave acquisition device is a sensor that collects the pulse wave of the person to be tested and simultaneously acquires the respiratory wave. The respiratory wave acquisition device is a sensor that acquires respiratory waves based on chest cavity displacement using a non-contact Doppler radar or a breathing chest belt, or a sensor that acquires respiratory waves by measuring chest impedance based on an impedance method. In addition, the respiratory wave acquisition device may also be an extractor for extracting synchronous respiratory wave signals from pulse signals, using Fourier transform or EMD algorithm and other related algorithms to extract respiratory wave signals from pulse waves.

The processing device extracts time-domain and frequency-domain characteristic parameters of the pulse wave and respiratory wave by using related algorithms such as Fourier transform or EMD algorithm.

The diagnostic device is a device that can give the rhythm "one breath and one breath" and other pulse condition diagnostic information related to breathing.

(3) Beneficial effects

The present invention has the following beneficial effects by introducing respiratory wave acquisition:

1. Make the extraction of physiological information related to pulse diagnosis more comprehensive;

2. Make the diagnostic process of the pulse wave method more in line with the essence of traditional Chinese medicine pulse diagnosis;

3. It provides a new possibility for pulse wave research, especially the research on the relationship between pulse wave and cardiopulmonary function.

Description of drawings

Fig. 1 is a kind of pulse wave diagnosis system structure diagram according to the present invention with respiratory wave acquisition concurrently;

Fig. 2 is the flow chart of an embodiment of the pulse wave diagnosis system with respiratory wave acquisition concurrently of the present invention;

Fig. 3 is a waveform diagram of the interactive relationship between pulse wave and respiratory wave obtained by the pulse wave diagnostic system with respiratory wave acquisition according to an embodiment of the present invention;

Fig. 4 is a flow chart of another embodiment of the pulse wave diagnosis system with respiratory wave acquisition of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. The following introductions are some of the many possible embodiments of the present invention, the purpose is to promote the basic understanding of the present invention, not to determine the key elements in the present invention or to limit the scope of protection. It is easy to understand that, according to the technical solution of the present invention, those skilled in the art can propose other alternative implementation modes without changing the essence of the present invention. Therefore, the following specific implementation methods and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the entire content of the present invention or the limited scope of the technical solution of the present invention.

The realization path of the present invention is as follows:

(1) Use a sensor to collect the pulse wave of the person to be tested;

(2) Obtain the synchronized breathing wave of the person to be tested;

(3) Analysis and processing of pulse wave and respiratory wave data;

(4) Give the pulse wave diagnosis result with respiratory wave data.

As shown in FIG. 1 , a structural diagram of a pulse wave diagnosis system with respiratory wave acquisition in the present invention.

In the first aspect of the pulse wave diagnostic system with respiratory wave acquisition, the pulse wave sensor is used to collect the pulse wave of the person to be tested, which is carried out at a single location in a certain area around the human body by using the pulse wave sensor within a certain period of time. Pulse wave acquisition, or use an array pulse wave sensor to perform synchronous pulse wave acquisition at multiple locations in a certain area around the human body.

The second aspect of the pulse wave diagnostic system with respiratory wave acquisition of the present invention uses a respiratory wave acquisition device to acquire the synchronous respiratory wave of the person to be tested. Synchronous acquisition of respiratory waves by sensors based on thoracic displacement such as Pule radar or respiratory chest belt, or by sensors based on chest impedance measurement based on impedance method to acquire respiratory waves, and other methods for synchronous acquisition of respiratory waves; Another situation is to use the synchronous respiratory wave signal extractor to process the pulse wave data collected by the pulse wave sensor, extract the respiratory wave signal in the pulse wave signal, and realize the acquisition of the respiratory wave signal.

The third aspect of the pulse wave diagnostic system with respiratory wave acquisition of the present invention is to use a processing device to analyze and process the pulse wave and respiratory wave data, to filter and denoise the pulse wave signal and respiratory wave signal, and to use Fourier transform , EMD and other algorithms to extract the time domain and frequency domain characteristic parameters of pulse wave and respiratory wave.

The fourth aspect of the pulse wave diagnostic system with respiratory wave acquisition is to use the diagnostic device to give the pulse wave diagnosis results with respiratory wave data, which is based on the analysis results of pulse wave and respiratory wave signals, according to traditional Chinese medicine The theory of pulse diagnosis provides pulse diagnostic information such as pulse potential, pulse length, intensity, and rhythm, such as "one breath and one breath".

Fig. 2 is a flow chart of an embodiment of the pulse wave diagnosis system combined with respiratory wave acquisition of the present invention.

In step S101, the personal information of the person to be tested and information such as collection date and time are registered. For example: register personal information such as the age, height, weight, and medical history of the person to be tested, and register the date and time when the pulse wave and respiratory wave are collected. This is because the morphological characteristics of the pulse wave will change with the age, season, time and other factors of the person to be tested. Recording the personal information of the person to be tested and the collection time and date is conducive to obtaining accurate pulse wave diagnosis results.

In step S102, the pulse wave of the person to be tested is collected and the respiratory wave of the person to be tested is collected synchronously. For example: use a multi-channel array pulse wave sensor composed of pressure sensors to perform non-invasive multi-point pulse wave synchronous acquisition in a certain area of the human body surface; while collecting pulse waves, use non-contact Doppler radar or respiratory chest Collect the respiratory wave of the person to be tested synchronously, and store the synchronized pulse wave and respiratory wave data.

In step S103, the pulse wave and respiratory wave data are processed. For example: filter and denoise the synchronous pulse wave and respiratory wave signals collected in S102, and use algorithms such as Fourier transform and EMD to extract time domain and frequency domain characteristic parameters of pulse wave and respiratory wave.

In step S104, the interactive relationship between the pulse wave and the respiration wave such as "one breath and one breath" is obtained. For example, Fig. 3 is a waveform diagram of the interactive relationship between pulse wave and respiratory wave obtained by the pulse wave diagnostic system with respiratory wave acquisition according to an embodiment of the present invention. As shown in Fig. 3, S201 is the pulse wave waveform, and S202 is the pulse wave waveform and Synchronous respiratory wave waveform; according to the pulse wave data processing result in S103, select the stable time interval T1 _of the pulse wave data; according to the result of synchronous respiratory wave data processing in S103, select the stable time interval T2 of the respiratory wave data _; T3 is the overlapping part _of the pulse wave stabilization time T1 and the respiratory wave stabilization time T2 _; the data is further processed to obtain the number _of pulse beats N1 in the time interval _of T3 and the number of respirations _N2 in the time interval of _{T3 ;} Then the number of pulse wave arrivals in one breath can be obtained as In addition to counting information between breaths, other correlations between respiratory waves and pulse waves can also be obtained.

In step S105, the pulse wave diagnosis information is obtained according to all the data. For example: combining the personal information of the person to be tested recorded in S101 and the collection date and time information, and the data processing results of the pulse wave and respiratory wave in S103, and the pulse wave arrival number information obtained in S104, the traditional Chinese medicine pulse Diagnosis theory is used as the basis to obtain pulse diagnosis results.

Fig. 4 is a flow chart of another embodiment of the pulse wave diagnosis system with respiratory wave acquisition of the present invention.

In step S301, the personal information of the person to be tested and the collection date and time are registered. For example: register personal information such as the age, height, weight, and medical history of the person to be tested, and register the date and time when the pulse wave and respiratory wave are collected. This is because the morphological characteristics of the pulse wave will change with the age, season, time and other factors of the person to be tested. Recording the personal information of the person to be tested and the collection time and date is conducive to obtaining accurate pulse wave diagnosis results.

In step S302, the pulse wave of the person to be tested is collected. For example: using a multi-channel array pulse wave sensor composed of pressure sensors, non-invasive multi-point pulse wave synchronous acquisition is performed in a certain area of the human body surface, and the pulse wave data is stored.

In step S303, data processing is performed on the pulse wave and the respiratory wave is extracted. For example: denoise the pulse wave collected in S302, and use algorithms such as Fourier transform and EMD to extract the respiration wave from the pulse wave. On this basis, the pulse wave and the extracted respiratory wave are further processed to obtain the time domain and frequency domain characteristic parameters of the pulse wave and respiratory wave.

In step S304, the interactive relationship between the pulse wave and the respiratory wave such as "one breath, one breath", etc. is obtained. For example: as shown in Figure 3, S201 is the pulse wave waveform collected, and S202 is the pulse wave waveform extracted from the pulse wave after data processing is performed on the pulse wave; according to the pulse wave data processing result in S303, select the pulse wave The time interval T ₁ for data stabilization; according to the result of processing the respiratory wave data extracted from the pulse wave in S303, select the time interval T ₂ in which the respiratory wave data is stable and the waveform is good; T ₃ is the pulse wave stabilization time T ₁ and the respiratory wave _The time overlap part of the stable time T2; further processing the data, the number _of pulse beats N1 in the time interval _of T3, and the number of respirations _N2 in the time interval of T3 _; In addition to counting information between breaths, other correlations between breath waves and pulse waves can also be obtained.

In step S305, the pulse wave diagnosis information is obtained according to all the data. For example: combining the personal information of the person to be tested and the date and time of collection recorded in S301, and the data processing results of the pulse wave and respiratory wave in S303, and the pulse wave arrival number information obtained in S304, based on traditional Chinese medicine pulse Diagnosis theory is used as the basis to obtain pulse diagnosis results.

So far, the pulse wave diagnosis system with respiratory wave acquisition and the diagnosis method using it have been fully described. Through the introduction of respiratory wave information, the system restores the traditional pulse diagnosis method as much as possible, and obtains more comprehensive physiological information as the basis for pulse wave diagnosis. new ideas.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the present invention. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention.

Claims (12)

1. A pulse wave diagnostic system with respiratory wave acquisition concurrently, is characterized in that, comprises pulse wave sensor, respiratory wave acquisition device, processing device and diagnostic device, wherein, The pulse wave sensor is used to collect the pulse wave of the person to be tested; The respiratory wave acquisition device is used to acquire the respiratory wave of the person to be tested synchronized with his pulse wave; The processing device is used to extract time-domain and frequency-domain characteristic parameters of the pulse wave and respiratory wave; The diagnosis device is used for obtaining pulse condition diagnosis results according to the characteristic parameters. 2 . The pulse wave diagnostic system according to claim 1 , wherein the respiratory wave acquisition device is a sensor for synchronous acquisition of the respiratory wave while collecting the pulse wave of the person to be tested. 3 . 3. The pulse wave diagnostic system according to claim 2, wherein the respiratory wave acquisition device is a sensor that acquires respiratory waves based on chest displacement using a non-contact Doppler radar or a breathing chest belt. 4 . The pulse wave diagnostic system according to claim 2 , wherein the respiratory wave acquisition device is a sensor for obtaining respiratory waves by measuring chest impedance based on an impedance method. 5. The pulse wave diagnostic system according to claim 1, wherein the respiratory wave acquisition device is an extractor for synchronous respiratory wave signal extraction from the pulse signal. 6. The pulse wave diagnostic system according to claim 5, wherein the respiratory wave acquisition device is an extractor that uses Fourier transform or EMD algorithm to extract the respiratory wave signal from the pulse wave. 7. The pulse wave diagnostic system according to any one of claims 1 to 6, wherein the processing device uses Fourier transform or EMD algorithm to extract the time domain and frequency domain of the pulse wave and respiratory wave Characteristic Parameters. 8. The pulse wave diagnostic system according to any one of claims 1 to 6, characterized in that, the diagnostic device is a device capable of giving pulse condition diagnostic information of the rhythm "every breath". 9. The pulse wave diagnostic system according to any one of claims 1 to 6, wherein the pulse wave sensor is a pulse wave collected at a single position in a certain area around the human body within a certain period of time. wave sensor. 10. The pulse wave diagnostic system according to any one of claims 1 to 6, characterized in that the pulse wave sensor performs synchronous pulse wave acquisition at multiple positions in a certain area around the human body within a certain period of time array pulse wave sensor. 11. The pulse wave diagnostic system according to claim 10, wherein the pulse wave sensor is a pressure sensor. 12. The pulse diagnosis system according to claim 10, wherein the pulse wave sensor is a multi-channel array pulse wave sensor for non-invasive multi-point pulse wave synchronous acquisition in a certain area of the human body surface.