TWI669095B - Physiological signal measuring device - Google Patents
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Abstract
本發明提出一種生理訊號量測裝置。上述裝置包括:環狀結構,環狀結構的內表面包括第一凸出部及相對第一凸出部而設置的第二凸出部,其中第一凸出部及第二凸出部的至少其中之一設置感測器以量測生理訊號;第一固定件,設置於內表面上並鄰近第一凸出部;以及第二固定件,設置於內表面上並鄰近第一凸出部。第一固定件與第二固定件位於第一凸出部的兩側。生理訊號量測裝置藉由第一固定件、第二固定件及第二凸出部固定在待測物上。The invention provides a physiological signal measuring device. The device includes: an annular structure, the inner surface of the annular structure includes a first protruding portion and a second protruding portion disposed opposite to the first protruding portion, wherein at least the first protruding portion and the second protruding portion are One of the sensors is configured to measure the physiological signal; the first fixing member is disposed on the inner surface and adjacent to the first protruding portion; and the second fixing member is disposed on the inner surface and adjacent to the first protruding portion. The first fixing member and the second fixing member are located at two sides of the first protruding portion. The physiological signal measuring device is fixed on the object to be tested by the first fixing member, the second fixing member and the second protruding portion.
Description
本發明是有關於一種生理訊號量測裝置,且特別是有關於一種能夠獲得更精準的量測結果的生理訊號量測裝置。The present invention relates to a physiological signal measuring device, and more particularly to a physiological signal measuring device capable of obtaining a more accurate measurement result.
受到近幾年來醫療、衛生及生活形態的影響,慢性病(如心臟疾病、中風、癌症及糖尿病)已取代急性傳染病成為已開發或開發中國家的主要疾病。慢性病除了損害個人健康外,也會對家庭經濟及國家醫療支出造成沉重負擔。因此慢性病的防治與治療成為世界各國所著重的課題。目前醫院具備多種慢性病偵測方式,但醫療成本還是逐年高漲,如果能夠落實每天居家定時檢測,或許才能發揮早期偵測的效用。目前國內外各大廠積投入與研發居家診斷儀器,但面臨硬體操作不方便且量測不夠精確、軟體分析缺乏可有效應用於疾病分析之指標、量測結果缺乏臨床驗證等瓶頸,都尚未有顯著的成果出現。Affected by medical, health and lifestyle patterns in recent years, chronic diseases such as heart disease, stroke, cancer and diabetes have replaced acute infectious diseases as major diseases in developed or developing countries. In addition to damaging personal health, chronic diseases can also place a heavy burden on the family economy and national medical expenditure. Therefore, the prevention and treatment of chronic diseases has become a topic of great concern in all countries of the world. At present, the hospital has a variety of chronic disease detection methods, but the medical costs are still rising year by year. If you can implement daily home time detection, you may be able to play the role of early detection. At present, major domestic and foreign large-scale factories have invested in research and development of home diagnostic instruments, but they are not convenient for hardware operation and the measurement is not accurate enough. The lack of software analysis can effectively be applied to the indicators of disease analysis, and the measurement results lack clinical certification and other bottlenecks. Significant results have emerged.
循環疾病是現今醫學所面對的最大挑戰,由我國十大死因可知,身體局部組織之循環不良造成的各種疾病,合計約有67%之死亡原因,是與循環供血不良有關,由此可見此一威脅之嚴重性,且此一現象是目前全球先進國家共通之特性。若我們對全身血液供應狀態,能做出精確的評估,就可能反映身體組織運作狀況,進而對各種病症提供早期預防或治療的資訊,進而確保世人長期健康。Circulating diseases are the biggest challenges faced by medical science today. It is known from the top ten causes of death in China that the diseases caused by poor circulation of local tissues are about 67% of the total causes of death, which is related to poor circulation and blood supply. The severity of a threat, and this phenomenon is a common feature of advanced countries in the world. If we make an accurate assessment of the state of the blood supply to the whole body, it may reflect the state of the body's tissues, and thus provide information on early prevention or treatment of various conditions, thereby ensuring long-term health of the world.
人體心室週期性的收縮和舒張導致主動脈的收縮和舒張,使血流壓力以波的形式從主動脈根部開始沿著整個動脈系統傳播,這種波稱為脈搏波。脈搏波所呈現出的形態、強度、速率和節律等方面的綜合信息,可反映出人體心血管系統中許多生理病理的血流特徵。The periodic contraction and relaxation of the human ventricle leads to contraction and relaxation of the aorta, causing blood flow pressure to propagate from the root of the aorta along the entire arterial system in the form of waves. This wave is called a pulse wave. The comprehensive information on the shape, intensity, rate and rhythm of the pulse wave can reflect the blood flow characteristics of many physiological and pathological processes in the human cardiovascular system.
現今穿戴式科技之生理量測投入者眾,相關生理參數包括心跳、血壓、體脂肪、運動量等,投入廠商包括谷歌(Google)、三星、蘋果(Apple)等。然而目前穿戴式科技的發展並不足以反映人體真實的生理與病理狀態。主要是因為診斷功能不足,例如i-Watch 依附在手腕上,不僅厚度與重量造成負擔,價格昂貴,且目前診斷偵測部分只涵蓋心律監測、運動圖像化報告、血糖偵測等,目前未通過食品藥品監督管理局( Food and Drug Administration,FDA)認證,臨床應用價值受限。此外在量測精度、電池續航力等,仍有相當改善空間。Nowadays, the physiological measurement of wearable technology is input to the public. The relevant physiological parameters include heartbeat, blood pressure, body fat, exercise volume, etc., and the manufacturers include Google, Samsung, and Apple. However, the current development of wearable technology is not enough to reflect the true physiological and pathological state of the human body. Mainly because of the lack of diagnostic functions, such as i-Watch attached to the wrist, not only the burden of thickness and weight, the price is expensive, and the current diagnostic detection part only covers heart rhythm monitoring, motion imaging report, blood glucose detection, etc. Certified by the Food and Drug Administration (FDA), clinical application value is limited. In addition, there is still considerable room for improvement in measurement accuracy, battery life, and so on.
血液脈動容積變化(Photoplethysmography ,PPG)(或稱為光體積描記法)信號是利用紅外光感測元件照射體表,運用血液吸收光線能量的原理,紀錄光線的變化而感應出來的信號。當心臟搏動週期,使得血管內單位面積的血流量成週期性的變化,血液體積若產生變動時,光感測元件將會隨著血液體積的變化而感應出電壓,吸收最多光線的時期剛好是心臟收縮的時期,光被血液中的血紅素吸收,所以 PPG 信號的振幅會隨血液進出組織成正比的變化。PPG信號取得簡單,在適當的信號前端處理之後,信號使用價值很高,由過去的文獻指出,可以利用PPG信號瞭解交感神經之變化以及輔助心血管功能診斷。與其他儀器相比PPG具有設備輕便、操作簡易、非侵入性、親和性高及成本低廉等優勢,且由於偵測範圍涵蓋血管床與小動脈,在診斷上兼具評估主要循環與微循環的好處,以致許多學者投入研究。Photoplethysmography (PPG) (or photoplethysmography) is a signal that is sensed by the use of infrared light-sensing elements to illuminate the surface of the body, using the principle of blood to absorb light energy, and recording changes in light. When the heart beats the cycle, the blood flow per unit area of the blood vessel changes periodically, and if the blood volume changes, the light sensing element will induce a voltage as the blood volume changes, and the period of absorbing the most light is just During the period of systole, light is absorbed by hemoglobin in the blood, so the amplitude of the PPG signal changes proportionally with the blood entering and leaving the tissue. The PPG signal is simple to obtain, and the signal is of high value after being processed by the appropriate signal front end. It has been pointed out from the past literature that the PPG signal can be used to understand the changes of the sympathetic nerve and to assist in the diagnosis of cardiovascular function. Compared with other instruments, PPG has the advantages of light weight, easy operation, non-invasiveness, high affinity and low cost. Because the detection range covers vascular bed and small artery, it is diagnosed with both primary circulation and microcirculation. The benefits have led many scholars to invest in research.
綜觀目前全球學界與業界的發展,已有多家廠商或學者,整合單晶片電路與PPG量測開發相關硬體,試圖提供臨床應用。電路方面,可結合運算單晶片如MSP430,或如蘋果開發iwatch穿戴式裝置;感測器方面,則有多家採用指套方式(如Philip),或採用手環等其他穿戴式型式。Looking at the current development of the global academic community and the industry, there have been many manufacturers or scholars, integrating single-chip circuits and PPG measurement development related hardware, trying to provide clinical applications. In terms of circuit, it can be combined with single-chip computing such as MSP430, or iwatch wearable device such as Apple; in terms of sensor, there are many finger-strap methods (such as Philip), or other wearable models such as bracelets.
現有的關於PPG的相關硬體設置,都面臨了以下共通問題。再現性差:重複量測時,量取波形之再現性差,影響波形計算所得指標之可信度。不舒適:配合固定裝置,易造成受測者局部不舒適,妨礙正常生理運作,而影響生理狀態監控之可信度。固定效果差:易引發人體與感測器之間的移動假影(motion artifact),造成量得訊號之不穩定。生理應用指標缺乏:波形計算所得之指標,缺乏於生理應用之相關進展,嚴重侷限PPG量測之生理或病理廣泛臨床應用,大多僅能進行血氧飽和度評估,無法貢獻於慢性疾病之偵測。因此,如何提供一種能夠獲得更精準的量測結果的生理訊號量測裝置,是本領域技術人員應致力的目標。The existing related hardware settings for PPG face the following common problems. Poor reproducibility: When repeating the measurement, the reproducibility of the measured waveform is poor, which affects the reliability of the index calculated by the waveform. Uncomfortable: With the fixing device, it is easy to cause partial uncomfortableness of the subject, hinder normal physiological operation, and affect the credibility of physiological state monitoring. Poor fixing effect: It is easy to cause motion artifact between the human body and the sensor, resulting in unstable signal. Lack of physiological application indicators: the indicators obtained by waveform calculation, lack of relevant progress in physiological application, severely limited PPG measurement of physiological or pathological extensive clinical application, most can only carry out oxygen saturation assessment, can not contribute to the detection of chronic diseases . Therefore, how to provide a physiological signal measuring device capable of obtaining more accurate measurement results is a goal that those skilled in the art should strive for.
本發明提供一種生理訊號量測裝置,能夠獲得更精準的量測結果。The invention provides a physiological signal measuring device, which can obtain more accurate measurement results.
本發明提出一種生理訊號量測裝置,用於固定在待測物上並量測待測物的生理訊號。上述裝置包括:環狀結構,環狀結構的內表面包括第一凸出部及相對第一凸出部而設置的第二凸出部,其中第一凸出部及第二凸出部的至少其中之一設置感測器以量測生理訊號;第一固定件,設置於內表面上並鄰近第一凸出部;以及第二固定件,設置於內表面上並鄰近第一凸出部。第一固定件與第二固定件位於第一凸出部的兩側。生理訊號量測裝置藉由第一固定件、第二固定件及第二凸出部固定在待測物上。The invention provides a physiological signal measuring device for fixing on the object to be tested and measuring the physiological signal of the object to be tested. The device includes: an annular structure, the inner surface of the annular structure includes a first protruding portion and a second protruding portion disposed opposite to the first protruding portion, wherein at least the first protruding portion and the second protruding portion are One of the sensors is configured to measure the physiological signal; the first fixing member is disposed on the inner surface and adjacent to the first protruding portion; and the second fixing member is disposed on the inner surface and adjacent to the first protruding portion. The first fixing member and the second fixing member are located at two sides of the first protruding portion. The physiological signal measuring device is fixed on the object to be tested by the first fixing member, the second fixing member and the second protruding portion.
在本發明的一實施例中,上述第一凸出部設置第一感測器且第二凸出部設置第二感測器,第一感測器及第二感測器的其中之一具有光發射器,第一感測器及第二感測器的其中另一具有光接收器。In an embodiment of the invention, the first protrusion is provided with a first sensor and the second protrusion is provided with a second sensor, one of the first sensor and the second sensor has The light emitter, the other of the first sensor and the second sensor has a light receiver.
在本發明的一實施例中,上述第一凸出部設置第一感測器且第二凸出部設置第二感測器,第一感測器及第二感測器的其中之一具有光發射器及光接收器。In an embodiment of the invention, the first protrusion is provided with a first sensor and the second protrusion is provided with a second sensor, one of the first sensor and the second sensor has Light emitters and light receivers.
在本發明的一實施例中,上述感測器為光體積描記法(Photoplethysmography,PPG)感測器。In an embodiment of the invention, the sensor is a photoplethysmography (PPG) sensor.
在本發明的一實施例中,當待測物藉由第一固定件、第二固定件及第二凸出部來固定時,第一固定件及第二固定件朝向環狀結構的方向被壓縮。In an embodiment of the invention, when the object to be tested is fixed by the first fixing member, the second fixing member and the second protruding portion, the first fixing member and the second fixing member are oriented toward the annular structure. compression.
在本發明的一實施例中,上述第一固定件及第二固定件包括泡棉結構。In an embodiment of the invention, the first fixing member and the second fixing member comprise a foam structure.
在本發明的一實施例中,上述第一固定件及第二固定件包括氣囊結構。In an embodiment of the invention, the first fixing member and the second fixing member comprise an airbag structure.
在本發明的一實施例中,上述第一固定件及第二固定件包括彈簧結構。In an embodiment of the invention, the first fixing member and the second fixing member comprise a spring structure.
在本發明的一實施例中,對應第一固定件的第一表面與對應第二凸出部的第二表面的夾角在30度到60度之間。In an embodiment of the invention, the angle between the first surface corresponding to the first fixing member and the second surface corresponding to the second protruding portion is between 30 degrees and 60 degrees.
在本發明的一實施例中,上述待測物為手指。In an embodiment of the invention, the object to be tested is a finger.
基於上述,本發明的生理訊號量測裝置透過一個環狀結構及第一固定件、第二固定件、第二凸出部來固定手指,使得感測器量測出來的生理訊號更為精確。除此之外,第一固定件及第二固定件的可壓縮結構也能增加手指固定時的舒適度。Based on the above, the physiological signal measuring device of the present invention fixes the finger through an annular structure and the first fixing member, the second fixing member and the second protruding portion, so that the physiological signal measured by the sensor is more accurate. In addition, the compressible structure of the first fixing member and the second fixing member can also increase the comfort when the finger is fixed.
為讓本發明的上述特徵和優點能更明顯易懂,下文特舉實施例,並配合所附圖式作詳細說明如下。The above described features and advantages of the invention will be apparent from the following description.
圖1根據本發明一實施例的生理訊號量測裝置俯視圖。1 is a top plan view of a physiological signal measuring device in accordance with an embodiment of the present invention.
請同時參照圖1,本發明的生理訊號量測裝置100是用於固定在待測物(例如,手指)上並量測待測物的生理訊號。生理訊號量測裝置100包括環狀結構110、第一固定件141及第二固定件142。環狀結構110的內表面120包括第一凸出部131及相對第一凸出部131而設置的第二凸出部132。第一凸出部131設置第一感測器151。第二凸出部132設置第二感測器152。第一固定件141設置於內表面120上並鄰近第一凸出部151。第二固定件142設置於內表面120上並鄰近第一凸出部151。第一固定件141與第二固定件142位於第一凸出部131的兩側。生理訊號量測裝置100藉由第一固定件141、第二固定件142及第二凸出部132固定在待測物上,使得待測物能固定在環狀結構110中。Referring to FIG. 1 at the same time, the physiological signal measuring device 100 of the present invention is used for fixing the physiological signal of the object to be tested (for example, a finger) and measuring the object to be tested. The physiological signal measuring device 100 includes an annular structure 110, a first fixing member 141, and a second fixing member 142. The inner surface 120 of the annular structure 110 includes a first protruding portion 131 and a second protruding portion 132 disposed opposite to the first protruding portion 131. The first protrusion 131 is provided with the first sensor 151. The second protrusion 132 is provided with a second sensor 152. The first fixing member 141 is disposed on the inner surface 120 and adjacent to the first protruding portion 151. The second fixing member 142 is disposed on the inner surface 120 and adjacent to the first protruding portion 151 . The first fixing member 141 and the second fixing member 142 are located on both sides of the first protruding portion 131. The physiological signal measuring device 100 is fixed on the object to be tested by the first fixing member 141, the second fixing member 142 and the second protruding portion 132, so that the object to be tested can be fixed in the annular structure 110.
當待測物藉由第一固定件141、第二固定件142及第二凸出部132來固定時,第一固定件141及第二固定件142朝向環狀結構110的方向被壓縮。如此一來,就可在量測時固定待測物而獲得更精確的量測結果。值得注意的是,第一固定件141、第二固定件142可包括泡棉結構、氣囊結構、彈簧結構等具有伸縮特性的結構,以提供環狀結構110與待測物更好的固定效果。When the object to be tested is fixed by the first fixing member 141 , the second fixing member 142 and the second protruding portion 132 , the first fixing member 141 and the second fixing member 142 are compressed toward the annular structure 110 . In this way, the test object can be fixed at the time of measurement to obtain a more accurate measurement result. It should be noted that the first fixing member 141 and the second fixing member 142 may include a structure having a telescopic property such as a foam structure, an airbag structure, and a spring structure to provide a better fixing effect of the annular structure 110 and the object to be tested.
此外,在一實施例中,第一固定件141的第一表面161與第二凸出部132的第二表面162的夾角可在30度到60度之間,以提供環狀結構110與待測物更好的固定效果。In addition, in an embodiment, the angle between the first surface 161 of the first fixing member 141 and the second surface 162 of the second protruding portion 132 may be between 30 degrees and 60 degrees to provide the annular structure 110 and The measured object has a better fixation effect.
在一實施例中,第一感測器151及第二感測器152為PPG感測器。第一感測器151及第二感測器152的其中之一具有光發射器,第一感測器151及第二感測器152的其中另一具有光接收器。透過光發射器及光接收器可進行穿透式的光學量測以獲得待測物的生理訊號。In an embodiment, the first sensor 151 and the second sensor 152 are PPG sensors. One of the first sensor 151 and the second sensor 152 has a light emitter, and the other of the first sensor 151 and the second sensor 152 has a light receiver. Through the optical transmitter and the optical receiver, a transmissive optical measurement can be performed to obtain a physiological signal of the object to be tested.
在另一實施例中,也可只在第一凸出部131設置第一感測器151,或是只在第二凸出部132設置第二感測器152。透過單一感測器上的光發射器及光接收器,可進行反射式的光學量測以獲得待測物的生理訊號。In another embodiment, the first sensor 151 may be disposed only in the first protruding portion 131 or the second sensor 152 may be disposed only in the second protruding portion 132. Through the light emitter and the light receiver on a single sensor, reflective optical measurement can be performed to obtain the physiological signal of the object to be tested.
雖然以上說明了由感測器來感測光學訊號,但本發明並不以此為限。感測器也能用來感測力學訊號、電學訊號或其他生理訊號。Although the above describes the sensing of the optical signal by the sensor, the invention is not limited thereto. The sensor can also be used to sense mechanical signals, electrical signals or other physiological signals.
在一實施例中,還可將電路設置於第一凸出部131及第二凸出部132的內部空間中,以進行訊號前處理、初步運算、數據傳輸等功能。In an embodiment, the circuit may be disposed in the inner space of the first protruding portion 131 and the second protruding portion 132 for performing functions such as signal pre-processing, preliminary calculation, and data transmission.
在一實施例中,可設置一傳輸線(未繪示於圖中)在環狀結構110上,使得測得的生理訊號透過傳輸線傳輸到個人電腦、筆記型電腦、智慧型手機、伺服器或其他類似電子裝置。In an embodiment, a transmission line (not shown) may be disposed on the ring structure 110, so that the measured physiological signals are transmitted through the transmission line to a personal computer, a notebook computer, a smart phone, a server, or the like. Similar to electronic devices.
在另一實施例中,還可設置一通訊模組(例如,藍芽晶片、Wifi晶片等) 在環狀結構110中,使得測得的生理訊號透過無線傳輸方式傳輸到個人電腦、筆記型電腦、智慧型手機、伺服器或其他類似電子裝置。In another embodiment, a communication module (eg, a Bluetooth chip, a Wifi chip, etc.) may be disposed in the ring structure 110, so that the measured physiological signals are transmitted to the personal computer and the notebook through wireless transmission. , smart phones, servers or other similar electronic devices.
圖2A為根據本發明一實施例的生理訊號量測裝置的擷取波形的示意圖。圖2B為根據現有生理訊號量測裝置的擷取波形的示意圖。2A is a schematic diagram of a captured waveform of a physiological signal measuring device according to an embodiment of the invention. 2B is a schematic diagram of a captured waveform according to the conventional physiological signal measuring device.
請參照圖2A及圖2B,圖2A顯示了採用本發明的生理訊號量測裝置100所擷取的波形,其波形特徵相較於圖2B根據現有生理訊號量測裝置所擷取的波形較能明顯保留呈現。Referring to FIG. 2A and FIG. 2B, FIG. 2A shows a waveform taken by the physiological signal measuring device 100 of the present invention, and the waveform characteristics are better than those of the existing physiological signal measuring device according to FIG. 2B. Obviously retaining the presentation.
圖3為根據本發明一實施例的生理訊號量測裝置的脈波訊號頻譜。圖4為根據本發明一實施例的生理訊號量測裝置的諧波參數變異度與現有生理訊號量測裝置的的諧波參數變異度的比較表。3 is a pulse signal spectrum of a physiological signal measuring device according to an embodiment of the invention. 4 is a comparison table of harmonic parameter variability of a physiological signal measuring device and harmonic parameter variability of a conventional physiological signal measuring device according to an embodiment of the invention.
請參照圖3,可將同筆脈波訊號1到60秒的時域波形進行快速傅立葉轉換(Fast Fourier Transform,FFT),以比較1到5諧波比例1分鐘內差異百分比。以第二諧波(假設心跳速率1.2Hz)為例,其計算方式如下列方程式,再計算其變異度(standard deviation/mean)來評估訊號穩定度。Referring to FIG. 3, the time domain waveform of the pulse signal of 1 to 60 seconds can be subjected to Fast Fourier Transform (FFT) to compare the percentage difference of 1 to 5 harmonic ratio within 1 minute. Taking the second harmonic (assuming a heart rate of 1.2 Hz) as an example, the calculation method is as follows, and then the variability (standard deviation/mean) is calculated to evaluate the signal stability.
請參照圖4,採用本發明的生理訊號量測裝置100的諧波參數變異度較小,代表了波形參數的穩定度較高。Referring to FIG. 4, the variability of the harmonic parameters of the physiological signal measuring apparatus 100 of the present invention is small, and the stability of the waveform parameters is high.
透過本發明的生理訊號量測裝置,在生理訊號量測時,手指的移動假影可被減少。同時,有助於生理訊號擷取的穩定性提升。例如,在光學訊號方面,可減少照射位置、光徑長度與行經角度的變化。在力學訊號方面,可減少待測物與力學感測器的相對移動並提升接觸與受力條件的穩定性。在電學訊號方面,可減少量測電極與體表接觸的條件改變。Through the physiological signal measuring device of the present invention, the movement artifact of the finger can be reduced during the physiological signal measurement. At the same time, it helps to improve the stability of physiological signal acquisition. For example, in terms of optical signals, variations in illumination position, path length, and angle of travel can be reduced. In terms of mechanical signals, it can reduce the relative movement of the object to be tested and the mechanical sensor and improve the stability of contact and stress conditions. In terms of electrical signals, it is possible to reduce the change in conditions in which the measuring electrodes are in contact with the body surface.
綜上所述,本發明的生理訊號量測裝置透過一個環狀結構及第一固定件、第二固定件、第二凸出部來固定手指,使得感測器量測出來的生理訊號更為精確,並能增加訊號的穩定度。除此之外,第一固定件及第二固定件的可壓縮結構也能增加手指固定時的舒適度。In summary, the physiological signal measuring device of the present invention fixes the finger through an annular structure and the first fixing member, the second fixing member and the second protruding portion, so that the physiological signal measured by the sensor is more Precise and can increase the stability of the signal. In addition, the compressible structure of the first fixing member and the second fixing member can also increase the comfort when the finger is fixed.
雖然本發明已以實施例揭露如上,然其並非用以限定本發明,任何所屬技術領域中具有通常知識者,在不脫離本發明的精神和範圍內,當可作些許的更動與潤飾,故本發明的保護範圍當視後附的申請專利範圍所界定者為準。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.
100‧‧‧生理訊號量測裝置100‧‧‧physiological signal measuring device
110‧‧‧環狀結構 110‧‧‧ ring structure
120‧‧‧內表面 120‧‧‧ inner surface
131‧‧‧第一凸出部 131‧‧‧First bulge
132‧‧‧第二凸出部 132‧‧‧Second projection
141‧‧‧第一固定件 141‧‧‧First fixture
142‧‧‧第二固定件 142‧‧‧Second fixture
151‧‧‧第一感測器 151‧‧‧First sensor
152‧‧‧第二感測器 152‧‧‧Second sensor
161‧‧‧第一表面 161‧‧‧ first surface
162‧‧‧第二表面 162‧‧‧ second surface
圖1根據本發明一實施例的生理訊號量測裝置俯視圖。 圖2A為根據本發明一實施例的生理訊號量測裝置的擷取波形的示意圖。 圖2B為根據現有生理訊號量測裝置的擷取波形的示意圖。 圖3為根據本發明一實施例的生理訊號量測裝置的脈波訊號頻譜。 圖4為根據本發明一實施例的生理訊號量測裝置的諧波參數變異度與現有生理訊號量測裝置的的諧波參數變異度的比較表。1 is a top plan view of a physiological signal measuring device in accordance with an embodiment of the present invention. 2A is a schematic diagram of a captured waveform of a physiological signal measuring device according to an embodiment of the invention. 2B is a schematic diagram of a captured waveform according to the conventional physiological signal measuring device. 3 is a pulse signal spectrum of a physiological signal measuring device according to an embodiment of the invention. 4 is a comparison table of harmonic parameter variability of a physiological signal measuring device and harmonic parameter variability of a conventional physiological signal measuring device according to an embodiment of the invention.
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