Pulse diagnosis method

Abstract

A pulse condition determination method includes the following steps: obtaining a determination pulse signal; determining the effective range of the determination pulse signal through reverse pulse identification; and determining the pulse condition based on the effective range.

Description

Technical Field

[0001] The present invention relates to a judgment method, and particularly to a pulse judgment method. Background Art

[0002] Traditional Chinese medicine (TCM) pulse diagnosis involves pressing the fingers on the wrist at the "Cun," "Guan," and "Chi" points (also known as the "three parts") to assess the physiological or pathological conditions of various organs and meridians. Furthermore, TCM pulse diagnosis instruments utilize pressure sensors, secured with a wristband and equipped with either a manual pressure knob or an electronic pressure bladder, similar to a sphygmomanometer. However, these pulse measurements are based on a uniform standard, failing to reflect individual differences and rendering the results unreliable for diagnosis. Summary of the Invention

[0003] The present invention provides a pulse condition judgment method which can reduce the influence of individual differences and provide effective pulse condition diagnosis information.

[0004] The pulse condition determination method of the present invention comprises the following steps: obtaining a determination pulse signal; determining the effective range of the determination pulse signal by reverse pulse identification; and determining the pulse condition based on the effective range.

[0005] Based on above-mentioned, the pulse judging method of the embodiment of the present invention is based on judging the effective range with the pulse signal effective pulse, and utilizes the effective range to judge the pulse condition of judging with the pulse signal, rather than utilizing numerical values ​​such as amplitude or pressure to compare and judge with critical values. Therefore, the pulse judging method of the embodiment of the present invention can reduce the influence of individual differences, so that effective pulse diagnosis information is provided.

[0006] In order to make the above features and advantages of the present invention more clearly understood, embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 Flowchart of a pulse condition determination method according to one embodiment of the present invention.

[0008] Figure 2 Flowchart of a pulse condition determination method according to another embodiment of the present invention.

[0009] Figure 3 FIG. 1 is a schematic diagram of a sensor disposed on a wrist according to an embodiment of the present invention.

[0010] Figure 4 FIG. 1 is a waveform diagram of a pulse signal for determination according to an embodiment of the present invention.

[0011] Figure 5 FIG. 1 is a waveform diagram of a determination pulse signal according to an embodiment of the present invention.

[0012] Figure 6 FIG. 1 is a waveform diagram of a pulse signal used for noise filtering according to an embodiment of the present invention.

[0013] Figure 7 FIG. 1 is a waveform diagram of a pulse signal used for determining noise filtering and abnormal peak interval filtering according to an embodiment of the present invention.

[0014] Figure 8 FIG. 1 is a waveform diagram of a pulse signal for determining noise filtering, abnormal peak interval filtering, and reverse pulse filtering according to an embodiment of the present invention.

[0015] Figure 9 FIG. 1 is a waveform diagram of a normal pulse according to an embodiment of the present invention.

[0016] Figure 10 FIG. 1 is a waveform diagram of a reverse pulse according to an embodiment of the present invention.

[0017] Figure 11 According to an embodiment of the present invention Figure 1 Detailed flowchart of step S130.

[0018] Figure 12 FIG. 1 is a waveform diagram of pulse condition determination based on an effective range according to an embodiment of the present invention.

[0019] Description of reference numerals:

[0020] Lmd1, Lmd2: middle line

[0021] max1~max4: highest peak

[0022] P1~P37, Pa, Pb, Pc, Pd: Peak

[0023] PXa: The first effective pulse peak

[0024] PXb: Last valid pulse peak

[0025] R1~R36、Ra、Rb:Trough

[0026] RET: Valid range

[0027] S110, S120, S130, S201, S220, S230, S240, S250, S260, S270, S280, S290, S310, S320: Steps

[0028] SER1~SER3: Sensors

[0029] SP1~SP4:Pulse signal DETAILED DESCRIPTION

[0030] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and the present invention, and will not be interpreted as idealized or overly formal unless explicitly defined as such herein.

[0031] It should be understood that although the terms "first," "second," "third," etc., may be used herein to describe various elements, components, regions, layers, and / or portions, these elements, components, regions, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or portion from another element, component, region, layer, or portion. Thus, a "first element," "component," "region," "layer," or "portion" discussed below may be referred to as a second element, component, region, layer, or portion without departing from the teachings herein.

[0032] The terms used herein are for the purpose of describing specific embodiments only and are not restrictive. As used herein, unless the content clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms, including "at least one". "Or" means "and / or". As used herein, the term "and / or" includes any and all combinations of one or more of the relevant listed items. It should also be understood that when used in this specification, the terms "include" and / or "including" specify the presence and / or parts of the features, regions, entireties, steps, operations, elements, components and / or parts, but do not exclude the presence or addition of one or more other features, regions, entireties, steps, operations, elements, components and / or combinations thereof.

[0033] Figure 1 Flowchart of a pulse condition determination method according to one embodiment of the present invention. Figure 1In this embodiment, the pulse condition determination method includes at least the following steps. In step S110, a determination pulse signal is first obtained. Next, in step S120, the effective range of the determination pulse signal is determined by reverse pulse identification. In other words, the effective range of the effective pulses in the determination pulse signal can be determined by filtering out the reverse pulses in the determination pulse signal. Finally, in step S130, the pulse condition is determined based on the effective range. Further, since pulse conditions in Traditional Chinese Medicine are divided into "floating," "medium," and "sinking," the effective range can be divided into three parts corresponding to "floating," "medium," and "sinking," and the pulse condition presented by (or corresponding to) the determination pulse signal is determined to be "floating," "medium," or "sinking" based on the pulse characteristics (e.g., the highest peak) of the effective pulses in the filtered determination pulse signal. Therefore, since the present invention determines the pulse condition based on the effective range, rather than comparing values ​​such as amplitude or pressure with a critical value, it can reduce the impact of individual differences and provide effective pulse condition diagnostic information.

[0034] In an embodiment of the present invention, some steps in the pulse condition determination method can be executed via a computer device, wherein the computer device may include a processor (e.g., a central processing unit (CPU), a graphics processing unit (GPU), an application processor (AP), a tensor processing unit (TPU), or a similar device) and a storage device storing instructions (e.g., a random access memory (RAM), a read-only memory (ROM)). Furthermore, the processor may execute the instructions stored in the storage device to perform at least some steps in the pulse condition determination method.

[0035] Figure 2 Flowchart of a pulse condition determination method according to another embodiment of the present invention. Figure 1 and Figure 2 In this embodiment, step S110 can be subdivided into steps S210 to S260, and steps S270 to S290 are added between steps S110 and S120.

[0036] Figure 3 This is a schematic diagram of a sensor configured on a wrist according to an embodiment of the present invention. Figure 2 and Figure 3In step S210, multiple sensors SER1-SER3 are positioned on the surface of the wrist for measurement. A set of sensors (such as SER1-SER3) is respectively configured for the "Cun", "Guan" and "Chi" of the wrist to measure the pulse of the "Cun", "Guan" and "Chi" of the wrist, respectively. Each set of sensors (such as SER1-SER3) is arranged in a 3x3 array, for example, but the embodiment of the present invention is not limited to this. For example, any number of arrays can be arranged. Then, these sensors (such as SER1-SER3) can be caused to continuously apply downward pressure to the body surface through various mechanisms or manual methods (step S220), and signals from the sensors (such as SER1-SER3) are simultaneously collected (step S230). In this embodiment of the present invention, pressure can be applied by a mechanical mechanism so that the sensors (such as SER1-SER3) can continuously apply downward pressure at a constant speed.

[0037] After collecting the signals of the sensors (such as SER1 to SER3), the baseline drift and high-frequency noise of the signals from the sensors (such as SER1 to SER3) are removed, and then a plurality of pulse signals for judging the pulses are generated (step S240). Next, it is determined whether the pulse amplitude of the measured (or generated) pulse signal is zero (step S250). When the pulse amplitude of the measured (or generated) pulse signal is not zero, that is, the judgment result is "no", indicating that the measurement process has not been completed (or ended), and the operation will return to step S220; when the pulse amplitude of the measured (or generated) pulse signal is zero, it indicates that the measurement process has been completed (or ended), that is, the judgment result is "yes", and step S260 will be executed. In other words, the sensor can continue to apply pressure until the pulse amplitude can no longer be measured and then stop.

[0038] Figure 4 FIG. 1 is a waveform diagram of a pulse signal for determining a decision according to an embodiment of the present invention. Figure 2 and Figure 4 In step S260, a plurality of pulse signals are received from a plurality of sensors (such as SER1 to SER3) to determine the pulse signal used for judging the pulse condition. Figure 4 As shown, for example, using pulse signals SP1-SP4, the waveform characteristics of pulse signals SP1-SP4 are determined (here, the highest peaks max1-max4 are used as an example). Based on the waveform characteristics of pulse signals SP1-SP4, it is determined which pulse signal SP1-SP4 is to be used as the judgment pulse signal (here, pulse signal SP1 corresponding to the highest peak max1 with the highest value is used as the judgment pulse signal). Furthermore, in this embodiment of the present invention, a corresponding judgment pulse signal can be selected from these pulse signals corresponding to "Cun," "Guan," and "Chi."

[0039] Figure 5 FIG is a waveform diagram of a pulse signal for determination according to an embodiment of the present invention. Figure 2 and Figure 6 In step S270, the peaks (such as P1 to P37) and troughs (such as R1 to R36) of the pulse signal for determination are detected. Figure 2 As shown, step S280 is executed to perform slope trend filtering to initially modify the waveform of the determination pulse signal.

[0040] Figure 6 FIG. 1 is a waveform diagram of a pulse signal for determining noise filtering according to an embodiment of the present invention. Figure 2 and Figure 6 In step S290, the pulse signal for determination is subjected to noise filtering and abnormal peak interval removal. Generally speaking, pulses with too small amplitude can be directly filtered out as noise, for example, pulses with amplitude less than 2 mmHg (mmHg) can be directly filtered out as noise, or pulses with amplitude less than the highest peak (such as Figure 4 The pulse whose amplitude of the highest peak (max1) is multiplied by a certain ratio (for example, 0.2) is considered as noise and filtered out directly. Figure 6 As shown, peaks P7 and P8 and troughs R6 and R7 are removed from the drawing.

[0041] Figure 7 FIG. 1 is a waveform diagram of a pulse signal for determining noise filtering and abnormal peak interval filtering according to an embodiment of the present invention. Figure 2 and Figure 7 , and after filtering out the noise, the short interval can be regarded as an abnormal peak interval, and the corresponding peak and its adjacent peaks can be removed. Figure 7 As shown, the peak P6 and the trough R5 are removed from the figure. The too short interval can be determined by the pulse rate (or heart rate), for example, half of the reciprocal of the pulse rate. This depends on the system design and the embodiment of the present invention is not limited to this.

[0042] Figure 8 This is a waveform diagram of a pulse signal for determining noise filtering, abnormal peak interval filtering and reverse pulse filtering according to an embodiment of the present invention. Figure 2 and Figure 8In step S290, after noise filtering and abnormal peak interval removal are performed on the determination pulse signal, the reverse pulse is identified to determine the valid range of the determination pulse signal. Specifically, the reverse pulses in the determination pulse signal (such as peaks P1-P5 and P9-21 and troughs R1-R4 and R9-R22) are first identified. Then, the reverse pulses in the determination pulse signal (such as peaks P1-P5 and P9-21 and troughs R1-R4 and R9-R22) are removed. The remaining pulses in the determination pulse signal are considered valid pulses (such as peaks P23-37 and troughs R23-R36). Finally, the valid pulses in the determination pulse signal (such as peaks P23-37 and troughs R23-R36) are used to determine the valid range of the determination pulse signal. For example, the valid range of the determination pulse signal is defined based on the first valid pulse peak (such as peak P23) and the last valid pulse peak (such as peak P37) of the determination pulse signal.

[0043] Figure 9 This is a waveform diagram of a normal pulse according to an embodiment of the present invention. Figure 2 、 Figure 8 and Figure 9 In a normal pulse, the trough Ra is closer to the next peak Pb than to the previous peak Pa. This means that the x-axis position (i.e., time point) of the trough Ra is greater than (or later than) the x-axis position of the midline Lmd1 between the two peaks Pa and Pb. In other words, when the current trough (e.g., trough Ra) between the previous peak (e.g., peak Pa) and the current peak (e.g., peak Pb) in the judgment pulse signal is closer to the previous peak (e.g., peak Pa), the current trough (e.g., trough Ra) and the current peak (e.g., peak Pb) form an inverse pulse.

[0044] Figure 10 This is a waveform diagram of a reverse pulse according to an embodiment of the present invention. Figure 2 、 Figure 8 and Figure 10 In a reverse pulse, trough Rb is closer to the previous peak Pc than to the next peak Pd. That is, the x-axis position (i.e., time point) of trough Rb is less than (or earlier than) the x-axis position of the midline Lmd2 between the two peaks Pc and Pd. In other words, when the current trough (e.g., trough Rb) between the previous peak (e.g., peak Pc) and the current peak (e.g., peak Pd) in the judgment pulse signal is closer to the current peak (e.g., peak Pd), the current trough (e.g., trough Rb) and the current peak (e.g., peak Pd) form a normal pulse.

[0045] Figure 11 According to an embodiment of the present invention Figure 1 Please refer to the detailed flow chart of step S130. Figure 2 and Figure 11 In this embodiment, step S130 may include steps S310 and S320. In step S310, the effective range is divided into three equal parts, and in step S320, the pulse condition is determined to be "floating", "medium" or "sinking" based on whether the highest pulse peak is located in one of the three equal parts.

[0046] Figure 12 FIG1 is a waveform diagram of a pulse condition according to an embodiment of the present invention based on an effective range. Figure 11 and Figure 12 After determining the effective range RET based on the first effective pulse peak PXa and the last effective pulse peak PXb, the effective range RET is cut into three equal parts corresponding to "floating", "medium" and "sinking" respectively. Next, it is determined whether the highest pulse peak PMX of the determination pulse signal is located in the one of the three equal parts after the cutting, and whether the pulse condition of the determination pulse signal is "floating", "medium" or "sinking". In the present embodiment, the highest pulse peak PMX is located in the range corresponding to "sinking", so the pulse condition of the determination pulse signal is determined to be "sinking". By analogy, when the highest pulse peak PMX is located in the range corresponding to "medium", the pulse condition of the determination pulse signal can be determined to be "medium"; when the highest pulse peak PMX is located in the range corresponding to "floating", the pulse condition of the determination pulse signal can be determined to be "floating".

[0047] As shown in the above embodiment, the embodiment of the present invention can record pulses in real time during the constant speed pressing process of the sensor and determine whether these pulses are valid, so as to clearly define the starting point and ending point of the valid pulse. Then, based on the starting point and ending point of the valid pulse, the effective range for judging the pulse condition is divided, and the effective range is automatically divided according to the pulse condition of "floating", "medium" and "sinking" to effectively determine the pulse condition of the pulse signal.

[0048] In summary, the pulse judging method of the embodiment of the present invention is based on judging the effective range with the pulse signal effective pulse, and utilizes the effective range to judge the pulse condition of the pulse signal, rather than utilizing numerical values ​​such as amplitude or pressure to compare and judge with critical values. Therefore, the pulse judging method of the embodiment of the present invention can reduce the influence of individual differences, so that effective pulse diagnosis information is provided.

[0049] Although the present invention has been disclosed above with reference to the embodiments, they are not intended to limit the present invention. Any person skilled in the art may make slight changes and modifications without departing from the concept and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A pulse condition judgment method comprising: Obtaining a judgment pulse signal; The effective range of the judgment pulse signal is determined by a reverse pulse identification, which includes: When a lower trough located between an upper crest and a lower crest in the determination pulse signal is closer to the upper crest at a time point, the lower trough and the lower crest form an inverse pulse; When the current trough is closer to the current peak in time, the current trough and the current peak form a normal pulse; and removing the reverse pulse in the determination pulse signal, and A pulse condition is determined based on the effective range.

2. pulse condition judging method as claimed in claim 1, also comprising: A plurality of pulse signals are received from a plurality of sensors to determine the determination pulse signal.

3. pulse condition judging method as claimed in claim 2, also comprises: Corresponding to "Cun", "Guan" and "Chi", a corresponding pulse signal for determination is selected from the plurality of pulse signals.

4. The pulse condition judging method as claimed in claim 2, wherein the plurality of sensors are arranged in an array.

5. The pulse condition determination method of claim 2, wherein during the measurement process, the plurality of sensors continue to apply pressure until the pulse amplitude cannot be measured.

6. pulse condition judging method as claimed in claim 2, also comprises: The plurality of pulse signals are generated after a baseline drift and a high frequency noise are removed from the plurality of signals received by the plurality of sensors.

7. The pulse condition judging method as claimed in claim 1, wherein judging the pulse condition based on the effective range comprises: Cut the effective range into three equal parts; as well as The pulse condition is judged as "floating", "medium" or "sinking" based on whether the highest pulse peak is located in one of the three equal parts.

8. pulse condition judging method as claimed in claim 1, also comprises: Before the effective range of the determination pulse signal is determined through the reverse pulse identification, a noise filtering and an abnormal peak interval filtering are performed on the determination pulse signal.

9. pulse condition judging method as claimed in claim 8, also comprising: The valid range of the determination pulse signal is defined based on a first valid pulse peak and a last valid pulse peak of the determination pulse signal.

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