TW201503872A - Oscillation pressurization type sphygmomanometer capable of measuring characteristics of cuff - Google Patents
Oscillation pressurization type sphygmomanometer capable of measuring characteristics of cuff Download PDFInfo
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- 230000010355 oscillation Effects 0.000 title abstract description 3
- 230000035487 diastolic blood pressure Effects 0.000 claims abstract description 50
- 230000035488 systolic blood pressure Effects 0.000 claims abstract description 49
- 230000036772 blood pressure Effects 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 15
- 210000001367 artery Anatomy 0.000 abstract description 17
- 230000010349 pulsation Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 210000003205 muscle Anatomy 0.000 description 5
- 238000009530 blood pressure measurement Methods 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 230000002792 vascular Effects 0.000 description 3
- 238000013022 venting Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000002321 radial artery Anatomy 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000004872 arterial blood pressure Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003205 diastolic effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000001361 intraarterial administration Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000003578 releasing effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/026—Measuring blood flow
- A61B5/0295—Measuring blood flow using plethysmography, i.e. measuring the variations in the volume of a body part as modified by the circulation of blood therethrough, e.g. impedance plethysmography
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Vascular Medicine (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Physiology (AREA)
- Molecular Biology (AREA)
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- Animal Behavior & Ethology (AREA)
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- Public Health (AREA)
- Ophthalmology & Optometry (AREA)
- Hematology (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
Description
本發明是一種壓振式血壓計，尤指一種可建構壓脈帶特性以調整收縮壓比值及舒張壓比值，並依調整後之收縮壓比值及舒張壓比值，找到動脈收縮壓及動脈舒張壓的可量測壓脈帶特性的壓振式血壓計。 The invention relates to a vibrating sphygmomanometer, in particular to a vascular pressure band characteristic for adjusting a systolic pressure ratio value and a diastolic blood pressure ratio value, and according to the adjusted systolic pressure ratio value and a diastolic blood pressure ratio value, finding an arterial systolic pressure and an arterial diastolic blood pressure. A vibrating sphygmomanometer that measures the characteristics of the pulsation.
1733年，英國科學家Stephen Hales以兩端開口的垂直黃銅管插入馬匹的動脈，再從銅管上之玻璃窗口察看血液爬生的高度測出平均壓，1828年Poiseuille以水銀柱取代了不方便的長銅管，透過20公分的水銀柱子即可量馬匹的動脈平均壓，而此種插入體內量取血壓的方式，稱為侵入式血壓(InvasiveBloodPressure，簡稱IBP)，此種IBP量測方式廣泛應用約半世紀，然而，由於此種血壓測量方法相當不便，因此，當時醫界一直渴望能有一種非侵入式且方便使用的血壓量測方法。 In 1733, British scientist Stephen Hales inserted the horse's arteries with vertical brass tubes that were open at both ends, and then examined the height of the blood crawling height from the glass window on the copper tube. In 1828, Poiseuille replaced the inconvenient with a mercury column. The long copper tube can measure the average arterial pressure of the horse through the 20 cm mercury column, and the method of measuring blood pressure in the body is called Invasive Blood Pressure (IBP). This IBP measurement method is widely used. For about half a century, however, because of the inconvenience of this blood pressure measurement method, the medical community had been eager to have a non-invasive and convenient blood pressure measurement method.
直至十九世紀末，Riva Rocci及Branard不約而同的發明了以壓脈袋(cuff)作成的非侵入式血壓計(Sphygmomanometer)，也就是我們目前所使用的水銀血壓計，並在1905年由N.S.Korotkoff定義出脈搏音與收縮壓及舒張壓之間的關係。 Until the end of the 19th century, Riva Rocci and Branard invented the non-invasive sphygmomanometer (Sphygmomanometer) made of cuff, which is the mercury sphygmomanometer we are currently using, and was defined by NSKorotkoff in 1905. The relationship between pulse sound and systolic and diastolic blood pressure.
目前非侵入式血壓計中，有一種壓振式血壓計，其原理在於：肱動脈屬於深層動脈，其管徑約3~4mm，但上臂的直徑約7~15cm，當肱動脈內的血壓波(收縮壓與舒張壓)透過動脈的彈性轉換出相對應的體 積變化，此體積變化透過上臂肌肉、組織等，在經過血壓計之壓脈帶的內 壁材質傳至壓脈帶內，根據彈性特性，體積變化量和壓力變化量是 正比關係，因此血管的體積變化量，會造成壓脈帶內的壓力變化，此壓力變化稱為壓振波。 At present, there is a vibrating sphygmomanometer in a non-invasive sphygmomanometer. The principle is that the radial artery belongs to a deep artery, and its diameter is about 3 to 4 mm, but the diameter of the upper arm is about 7 to 15 cm. When the blood pressure wave in the radial artery (systolic pressure and diastolic blood pressure) are converted into corresponding volume changes through the elasticity of the artery, and the volume change is transmitted to the cuff zone through the inner wall material of the venous blood vessel through the upper arm muscle, tissue, etc., according to the elasticity characteristic The amount of volume change and the amount of pressure change are proportional, so the volume change of the blood vessel causes a pressure change in the cuff, and this pressure change is called a pressure wave.
壓脈帶在洩壓過程中，壓脈帶的內壓會一直變小，此時動脈內的血壓若保持不變，則傳遞壓力會隨著洩壓過程逐漸變小，當傳遞壓力為0時，代表動脈所受的外壓力等於動脈的平均血壓，依照動脈壓力-體積的關係，此時動脈會有最大的體積變化量，相對應在壓脈帶內也會產生一個最大的壓振波。 During the pressure-relieving process, the internal pressure of the cuff zone will always become smaller. If the blood pressure in the artery remains unchanged, the transmission pressure will gradually decrease with the pressure-relieving process. When the transmission pressure is 0. The external pressure on behalf of the artery is equal to the mean blood pressure of the artery. According to the arterial pressure-volume relationship, the artery will have the largest volume change, and a maximum pressure wave will be generated in the pressure band.
在洩氣過程的壓振波中尋找收縮壓及舒張壓的特徵，是以最大的壓振波振幅(Amp max )為基礎，其所對應的壓脈帶壓力即為動脈平均血壓(MAP)，依設定的收縮壓比值(Ratio sys )和舒張壓比值(Ratio dia )，在比平均血壓高的壓振波中尋找收縮壓振幅(Amp sys )，其所對應的壓脈帶壓力即為動脈收縮壓(SysP)，在比平均血壓低的壓振波中尋找舒張壓振幅(Amp dia )，其所對應的壓脈帶壓力即為動脈舒張壓(DiaP)，其中，該收縮壓振幅(Amp sys )及該舒張壓振幅(Amp dia )定義如下：收縮壓振幅(Amp sys )=壓振波振幅(Amp max )*收縮壓比值(Ratio sys ) The characteristics of systolic blood pressure and diastolic blood pressure in the pressure wave of the deflation process are based on the maximum amplitude of the vibration wave ( Amp max ), and the corresponding pressure of the venous pressure is the mean blood pressure of the artery (MAP). The set systolic pressure ratio ( Ratio sys ) and the diastolic pressure ratio ( Ratio dia ) are used to find the systolic pressure amplitude ( Amp sys ) in the pressure wave higher than the average blood pressure, and the corresponding cuff pressure is the arterial systolic pressure. (SysP), looking for a diastolic pressure amplitude ( Amp dia ) in a pressure wave lower than the mean blood pressure, and the corresponding cuff pressure is the diastolic blood pressure (DiaP), wherein the systolic pressure amplitude ( Amp sys ) And the diastolic pressure amplitude ( Amp dia ) is defined as follows: systolic pressure amplitude ( Amp sys ) = pressure oscillation wave amplitude ( Amp max ) * systolic pressure ratio ( Ratio sys )
舒張壓振幅(Amp dia )=壓振波振幅(Amp max )*舒張壓比值(Ratio dia ) Diastolic amplitude ( Amp dia ) = pressure wave amplitude ( Amp max ) * diastolic pressure ratio ( Ratio dia )
壓脈帶特性包含有壓脈帶內壁材質特性和手臂肌肉和組織的特性，雖然壓脈帶的內壁材質特性為固定，但每個人的手臂肌肉和組織的特性不一樣，因此，壓脈帶的氣體洩氣速率會依每個人的手臂的粗細與肌肉和組織特性不同而有不同洩氣速率，由此可知在壓脈帶洩氣過程中， 壓脈帶內的壓振波包絡跡特性必定會隨人而有所不同，導致收縮壓比值和舒張壓比值受壓脈帶特性影響而產生改變，此時，若壓振式血壓計採用固定的收縮壓比值和舒張壓比值，其所量測出的血壓值必然不準。 The characteristics of the cuff include the characteristics of the inner wall of the cuff and the characteristics of the muscles and tissues of the arm. Although the material characteristics of the inner wall of the cuff are fixed, the characteristics of the muscles and tissues of the arm of each person are different. The gas deflation rate of the belt varies according to the thickness of each person's arm and the muscle and tissue characteristics, so that during the deflation of the venous belt, The characteristics of the pressure-enhanced wave envelope in the venous zone must vary from person to person, resulting in a change in the systolic pressure ratio and the diastolic pressure ratio due to the characteristics of the vascular band. At this time, if the oscillating sphygmomanometer is fixed The systolic pressure ratio and the diastolic pressure ratio are inevitably inaccurate.
本發明之目的係在於提供一種可確實量測動脈收縮壓及動脈舒張壓的可量測壓脈帶特性的壓振式血壓計。 SUMMARY OF THE INVENTION It is an object of the present invention to provide a vibrating sphygmomanometer which is capable of accurately measuring the arterial systolic pressure and the arterial diastolic pressure.
本發明之次要目的在於依據建構的壓脈帶特性，取得調整收縮壓比值及舒張壓比值的參數，並以調整之收縮壓比值及舒張壓比值找到動脈收縮壓及動脈舒張壓的可量測壓脈帶特性的壓振式血壓計。 The secondary object of the present invention is to obtain parameters for adjusting the systolic pressure ratio and the diastolic pressure ratio according to the characteristics of the constructed vascular band, and to find the systolic pressure and the diastolic pressure ratio of the adjusted systolic pressure ratio and the diastolic pressure ratio. A vibrating sphygmomanometer with a characteristic of a cuff.
本發明係一種可量測壓脈帶特性的壓振式血壓計，包括、一壓脈帶、一充氣馬達、一流量計、一洩氣磁閥、一壓力感測器及一微控制器，透過流量計和壓力感測器，在壓脈帶充氣過程中先建構壓脈帶特性，充氣的初始假設為壓脈帶內的殘餘體積為0，在充壓過程中，微控制器內設置之血壓計算部，將流量計所測量之壓脈帶充壓流量值轉換為體積值，並以壓力感測器偵測紀錄壓脈帶內之壓力值，建構壓脈帶體積-壓力特性及壓脈帶彈性-壓力特性，透過壓脈帶體積-壓力特性及壓脈帶彈性-壓力特性找到可以調整收縮壓比值和舒張壓比值的參數，以調整收縮壓比值及舒張壓比值，然後透過計算找到收縮壓振幅及舒張壓振幅，並依據收縮壓振幅及舒張壓振幅在壓振波的包絡曲線中找到發生的時間點，再根據此時間點在壓脈帶內壓找到對應的壓力，即為動脈收縮壓及動脈舒張壓。 The invention relates to a pressure vibration type sphygmomanometer capable of measuring characteristics of a pressure pulse band, comprising: a pressure pulse belt, a gas filling motor, a flow meter, a gas venting magnetic valve, a pressure sensor and a microcontroller, The flowmeter and the pressure sensor first construct the characteristics of the venous zone during the inflation of the venous zone. The initial assumption of the inflation is that the residual volume in the venous zone is 0. During the charging process, the blood pressure is set in the microcontroller. The calculation unit converts the pressure pulse flow value measured by the flow meter into a volume value, and detects the pressure value in the pressure pulse band by the pressure sensor, and constructs the volume-pressure characteristic and the cuff zone of the pressure pulse band. Elastic-pressure characteristics, through the volume-pressure characteristics of the cuff and the elastic-pressure characteristics of the cuff, find the parameters that can adjust the systolic pressure ratio and the diastolic pressure ratio to adjust the systolic pressure ratio and the diastolic pressure ratio, and then find the systolic blood pressure through calculation. Amplitude and diastolic pressure amplitude, and find the time point of occurrence in the envelope curve of the pressure wave according to the amplitude of systolic pressure and the amplitude of diastolic pressure, and then find the corresponding pressure in the pressure of the pressure band according to this time point, that is, the arterial harvest Pressure and diastolic blood pressure.
1‧‧‧壓脈帶 1‧‧‧Curve belt
2‧‧‧充氣馬達 2‧‧‧Inflatable motor
3‧‧‧流量計 3‧‧‧ Flowmeter
4‧‧‧洩氣磁閥 4‧‧‧Dissipating magnetic valve
5‧‧‧壓力感測器 5‧‧‧ Pressure sensor
6‧‧‧微控制器 6‧‧‧Microcontroller
61‧‧‧驅動電路 61‧‧‧ drive circuit
62‧‧‧血壓計算部 62‧‧‧ Blood Pressure Calculation Department
第1圖 為動脈體積-壓力關係圖；第2圖 為壓脈帶充氣時的體積和壓力反應圖；第3圖 為壓脈帶在不同壓力之彈性度表現圖；第4圖 為本發明之架構圖；第5圖 為本發明充氣動作之流程圖；以及第6圖 為本發明洩壓動作之流程圖。 Figure 1 is the arterial volume-pressure relationship diagram; Figure 2 is the volume and pressure response diagram when the cuff is inflated; Figure 3 is the elasticity diagram of the cuff at different pressures; Figure 4 is the invention FIG. 5 is a flow chart of the inflating action of the present invention; and FIG. 6 is a flow chart of the pressure releasing action of the present invention.
動脈的彈性特性會依傳遞壓力(P t )的不同而有變化，可以用指數函數來描述，V是在P t 時的動脈體積，V o 是在零傳地壓時的動脈體積，V max 是動脈完全展開的體積，C max 是動脈最大的彈性度，傳遞壓力是動脈外在與內在的壓力差值，動脈體積的變化和傳遞壓力的關係圖，如第1圖所示，可以看出動脈內血壓波相同(Y軸上的圖形)，但由於不同的傳遞壓力，導致動脈所反映的體積波的振幅大小會不同(X軸上的圖形)。 Elastic properties of the artery will depend on the delivery pressure (P t) is the change, may be an exponential function to describe, V is the arterial volume at P t is, V O is the arterial volume at zero transmission pressed, V max Is the volume of the fully deployed artery, C max is the maximum elasticity of the artery, and the transmission pressure is the relationship between the external and internal pressure difference of the artery, the change of the arterial volume and the transmission pressure. As shown in Figure 1, it can be seen The intra-arterial blood pressure waves are the same (pattern on the Y-axis), but due to different delivery pressures, the amplitude of the volume wave reflected by the artery will be different (pattern on the X-axis).
本發明所提供的可量測壓脈帶特性的壓振式血壓計，其關鍵在於利用一流量計和一壓力感測器，在壓脈帶充壓過程中，先校準壓脈帶特性，壓脈帶特性是由壓脈帶內壁和手臂肌肉組織的特性所組成。充壓的初始假設壓脈帶內的殘餘體積為0，充壓過程，流量計的積分量即為壓脈帶所增加的體積，相對應壓脈帶內壓力也會增加，壓脈帶的體積-壓力特性，如第2圖所示，分別針對三位不同血壓值的人，在使用相同壓脈帶的狀況下，所建立的”壓脈帶的體積-壓力特性”，和其相對應的”壓脈帶的彈性-壓力特性”，如第3圖所示，可以看出彼此的特性有非常顯著的差異，因此血壓測量的收縮壓比值和舒張壓比值是需要依「壓脈帶的體積-壓力特性」 和「壓脈帶的彈性-壓力特性」來調整。 The key of the vibrating sphygmomanometer capable of measuring the characteristics of the pulsation of the present invention is to use a flow meter and a pressure sensor to calibrate the characteristics of the venous band during the pressure-clamping process. The characteristics of the venous band are composed of the characteristics of the inner wall of the cuff and the muscle tissue of the arm. The initial filling pressure assumes that the residual volume in the cuff is 0. During the charging process, the integral amount of the flowmeter is the volume added by the cuff, and the pressure in the corresponding cuff is also increased. - Pressure characteristics, as shown in Fig. 2, for the three people with different blood pressure values, the volume-pressure characteristics of the "compressed venous belt" established under the same pressure band, and their corresponding "Elastic-pressure characteristics of the cuff", as shown in Fig. 3, it can be seen that there is a very significant difference in the characteristics of each other, so the systolic pressure ratio and the diastolic pressure ratio of the blood pressure measurement are required to be "the volume of the venous zone". -pressure characteristics" And adjust the "elastic-pressure characteristics of the cuffs".
請參閱第4圖，本發明係一種可量測壓脈帶特性的壓振式血壓計，包括一壓脈帶1、一充氣馬達2、一流量計3、一洩氣磁閥4、一壓力感測器5及一微控制器6，該壓脈帶1為可套於人體上臂，該充氣馬達2可對壓脈帶1充氣，該流量計3係在充氣馬達2對壓脈帶1充氣時偵測充氣量，該洩氣磁閥4為可排除壓脈帶1內空氣，該壓力感測器5為偵測壓脈帶1內壓力，該微控制器6係以驅動電路61控制洩氣磁閥4及驅動馬達2對壓脈帶1充氣或洩氣，以進行動脈舒張壓及動脈收縮壓量測，且該微控制器6內具有一血壓計算部62。 Referring to FIG. 4, the present invention is a vibrating sphygmomanometer capable of measuring the characteristics of a cuff, comprising a cuff 1, an inflation motor 2, a flow meter 3, a deflation magnetic valve 4, and a sense of pressure. The measuring device 5 and a micro-controller 6 are sleeved on the upper arm of the human body, and the air-filling motor 2 can inflate the cuff 1 which is when the inflating motor 2 inflates the cuff 1 Detecting the amount of inflation, the venting magnetic valve 4 is for eliminating the air in the cuff 1 , the pressure sensor 5 is for detecting the pressure inside the cuff 1 , and the microcontroller 6 controls the venting magnetic valve with the driving circuit 61 . 4 and the drive motor 2 inflates or deflates the cuff 1 to perform arterial diastolic pressure and arterial systolic pressure measurement, and the microcontroller 6 has a blood pressure calculation unit 62 therein.
請參閱第5圖，本發明所提供的可量測壓脈帶特性的壓振式血壓計充氣時，先將流量計3及壓力感測器5進行初始化校準，由微控制器6透過驅動電路61驅動充氣馬達2對壓脈帶1充氣，此時，透過流量計3偵測充氣馬達2對壓脈帶1充氣之流量值，並利用壓力感測器5偵測充氣馬達2充入壓脈帶1內之壓力值，然後將流量計3偵測之流量值，及壓力感測器5偵測之壓力值，透過類比/數位(A/D)轉換資料傳送至微控制器6，由微控制器6判斷壓脈帶1內壓是否已充壓達到設定值，當壓脈帶1內壓已充壓達到設定值時，微控制器6控制充氣馬達2停止充氣，此時，血壓計算部62將紀錄的流量值轉換為體積量，再以記錄的壓力值，建構壓脈帶1的「壓脈帶體積-壓力特性」及「壓脈帶彈性-壓力特性」。 Referring to FIG. 5, when the pressure-vibrating sphygmomanometer capable of measuring the characteristics of the pulsation of the present invention is inflated, the flow meter 3 and the pressure sensor 5 are first initialized and calibrated, and the microcontroller 6 transmits the driving circuit. 61 drives the air motor 2 to inflate the cuff 1 . At this time, the flow rate of the cuff 1 is detected by the flow meter 3 through the flow meter 3, and the air motor 2 is detected by the pressure sensor 5 to be charged into the pressure pulse. With the pressure value in 1 , the flow value detected by the flow meter 3 and the pressure value detected by the pressure sensor 5 are transmitted to the microcontroller 6 through analog/digital (A/D) conversion data. The controller 6 determines whether the internal pressure of the cuff 1 has reached the set value. When the internal pressure of the cuff 1 has reached the set value, the microcontroller 6 controls the inflation motor 2 to stop inflating. At this time, the blood pressure calculation unit 62 Converts the recorded flow rate value into a volume amount, and then constructs the "compressed pulse volume-pressure characteristic" and the "cable belt elastic-pressure characteristic" of the cuff 1 by the recorded pressure value.
請參閱第6圖，本發明所提供的可量測壓脈帶特性的壓振式血壓計洩壓時，微控制器6於壓脈帶1內壓中萃取壓振波振幅，同時尋找最大壓振波振幅及壓振波振幅發生的時間，並根據此時間點找到相對應的壓 脈帶內的壓力，即為動脈平均血壓，微控制器6判斷壓脈帶1內壓力是否達到洩壓設定值，若壓脈帶1內壓達到洩壓設定值，則微控制器6控制洩氣磁閥4將壓脈帶1內壓力全部洩掉，微控制器6根據萃取的壓振波振幅，建構壓振波包絡曲線，並依據壓脈帶1特性，找到可以調整收縮壓比值和舒張壓比值的參數，用於調整收縮壓比值及舒張壓比值，再透過計算找到收縮壓振幅及舒張壓振幅，根據收縮壓振幅及舒張壓振幅在包絡曲線中找到其發生的時間點，並根據此時間點在壓脈帶1內壓找到對應的壓力，即為動脈收縮壓及動脈舒張壓。 Referring to FIG. 6, when the pressure-damping sphygmomanometer capable of measuring the characteristics of the pulsation band is provided, the microcontroller 6 extracts the amplitude of the pressure-oscillation wave in the internal pressure of the cuff 1 while searching for the maximum pressure. The amplitude of the vibration wave and the time when the amplitude of the vibration wave occurs, and the corresponding pressure is found according to this time point. The pressure in the pulse band is the average blood pressure of the artery, and the microcontroller 6 determines whether the pressure in the pressure pulse band 1 reaches the pressure relief set value. If the internal pressure of the pressure pulse band 1 reaches the pressure relief set value, the microcontroller 6 controls the air pressure. The magnetic valve 4 completely vents the pressure in the cuff 1 , and the microcontroller 6 constructs a pressure wave envelope curve according to the amplitude of the extracted pressure wave, and finds that the systolic pressure ratio and the diastolic pressure can be adjusted according to the characteristics of the cuff 1 The ratio parameter is used to adjust the systolic pressure ratio and the diastolic pressure ratio value, and then find the systolic pressure amplitude and the diastolic pressure amplitude through calculation, and find the time point of occurrence in the envelope curve according to the systolic pressure amplitude and the diastolic pressure amplitude, and according to the time The point is found in the internal pressure of the cuff 1 to find the corresponding pressure, which is the arterial systolic pressure and the arterial diastolic pressure.
因此，本發明所提供的可量測壓脈帶特性的壓振式血壓計，並非如習知單純利用收縮壓比值及舒張壓比值，計算得知動脈收縮壓及動脈舒張壓，而是透過建構壓脈帶特性，然後由壓脈帶特性找到調整收縮壓比值及舒張壓比值的參數，再依調整後的收縮壓比值及舒張壓比值計算出收縮壓振幅及舒張壓振幅，並以此找到動脈收縮壓及動脈舒張壓，故本發明所提供的可量測壓脈帶特性的壓振式血壓計，所量測出之動脈收縮壓及動脈舒張壓係為準確之數值。 Therefore, the pressure-oscillated sphygmomanometer capable of measuring the characteristics of the pulsation of the present invention does not use the systolic pressure ratio and the diastolic blood pressure ratio, and calculates the arterial systolic pressure and the arterial diastolic pressure by constructing The characteristics of the venous zone, and then the parameters of the systolic pressure ratio and the diastolic pressure ratio are found by the characteristics of the venous zone, and the systolic pressure amplitude and the diastolic pressure amplitude are calculated according to the adjusted systolic pressure ratio and the diastolic pressure ratio, and the artery is found. The systolic blood pressure and the arterial diastolic pressure are the values of the arterial systolic blood pressure and the arterial diastolic blood pressure measured by the pressure-vibration sphygmomanometer which can measure the characteristics of the pressure band.
另外，本發明所提供的可量測壓脈帶特性的壓振式血壓計，也可以在充氣過程中量測動脈的收縮壓和舒張壓，在洩氣過程中量測壓脈帶特性，其原理與上述皆同，只是操作方法相反，於充壓過程中，記錄壓脈帶內的壓振波，和其包絡跡曲線，在洩壓過程中，流量計所測量之壓脈帶洩壓流量值轉換為體積值，並以壓力感測器偵測記錄壓脈帶內之壓力值，建構壓脈帶體積-壓力特性及壓脈帶彈性-壓力特性，透過壓脈帶體積-壓力特性及壓脈帶彈性-壓力特性找到可以調整收縮壓比值和舒張壓比值的 參數，以調整收縮壓比值及舒張壓比值，然後透過計算找到收縮壓振幅及舒張壓振幅，並依據收縮壓振幅及舒張壓振幅在壓振波的包絡曲線中找到發生的時間點，再根據此時間點在壓脈帶內壓找到對應的壓力，即為動脈收縮壓及動脈舒張壓。。 In addition, the vibrating sphygmomanometer capable of measuring the characteristics of the pulsation of the present invention can also measure the systolic pressure and the diastolic pressure of the artery during the inflation process, and measure the characteristics of the venous zone during the deflation process. Same as above, except that the operation method is reversed. During the charging process, the pressure wave in the cuff and the envelope curve are recorded. During the pressure relief process, the pressure pulse flow rate measured by the flowmeter is measured. Converted to volume value, and the pressure sensor detects the pressure value in the pressure pulse zone, constructs the volume-pressure characteristics of the cuff and the elastic-pressure characteristics of the cuff, and the volume-pressure characteristics and pressure pulse through the cuff With elastic-pressure characteristics, it is found that the systolic pressure ratio and the diastolic pressure ratio can be adjusted. Parameters to adjust the systolic pressure ratio and the diastolic pressure ratio, and then find the systolic pressure amplitude and the diastolic pressure amplitude through calculation, and find the time point of occurrence in the envelope curve of the pressure wave according to the systolic pressure amplitude and the diastolic pressure amplitude, and then according to this At the time point, the corresponding pressure is found in the pressure band of the cuff, which is the arterial systolic pressure and the arterial diastolic pressure. .
上列詳細說明係針對本發明之一的可行實施例之具體說明，惟該實施例並非用以限制本發明之專利範圍，凡未脫離本發明技藝精神所為之等效實施或變更，均應包含於本案之專利範圍中。 The detailed description above is a detailed description of a possible embodiment of the invention, and is not intended to limit the scope of the invention. In the scope of the patent in this case.
1‧‧‧壓脈帶 1‧‧‧Curve belt
2‧‧‧充氣馬達 2‧‧‧Inflatable motor
3‧‧‧流量計 3‧‧‧ Flowmeter
4‧‧‧洩氣磁閥 4‧‧‧Dissipating magnetic valve
5‧‧‧壓力感測器 5‧‧‧ Pressure sensor
6‧‧‧微控制器 6‧‧‧Microcontroller
61‧‧‧驅動電路 61‧‧‧ drive circuit
62‧‧‧血壓計算部 62‧‧‧ Blood Pressure Calculation Department
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| TW102126220A TW201503872A (en) | 2013-07-23 | 2013-07-23 | Oscillation pressurization type sphygmomanometer capable of measuring characteristics of cuff |
| CN201410042423.XA CN104337507B (en) | 2013-07-23 | 2014-01-28 | Pressure vibration type sphygmomanometer for measuring characteristics of pressure pulse belt |
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| US5094245A (en) * | 1988-10-17 | 1992-03-10 | Omron Corporation | Electronic blood pressure meter |
| JP3385262B2 (en) * | 2000-05-29 | 2003-03-10 | 日本コーリン株式会社 | Blood pressure measurement device |
| CN1345571A (en) * | 2000-09-30 | 2002-04-24 | 泰博科技股份有限公司 | Blood pressure measuring method and device thereof |
| KR20050117825A (en) * | 2004-06-11 | 2005-12-15 | 삼성전자주식회사 | Blood pressure measuring system and method of measuring blood pressure using the same |
| CN100496388C (en) * | 2005-08-31 | 2009-06-10 | 深圳迈瑞生物医疗电子股份有限公司 | Device for calculating blood pressure by using signal transformation |
| JP4470876B2 (en) * | 2005-12-20 | 2010-06-02 | オムロンヘルスケア株式会社 | Electronic blood pressure monitor |
| CN101548883A (en) * | 2009-05-26 | 2009-10-07 | 上海三埃弗电子有限公司 | Method for measuring blood pressure |
| TWI383778B (en) * | 2009-09-03 | 2013-02-01 | Quanta Comp Inc | Apparatus and method for measuring blood pressure with motion artifacts elimination |
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