技术领域technical field
本发明实施例涉及医疗器械领域，尤其涉及一种脉搏检测装置及其制作方法。Embodiments of the present invention relate to the field of medical devices, in particular to a pulse detection device and a manufacturing method thereof.
背景技术Background technique
当大量血液进入动脉将使动脉压力变大而使管径扩张，在体表较浅处即可感受到动脉的扩张，也就是所谓的脉搏。作为与心血管活动息息相关的信息载体，脉搏波蕴藏着极丰富的心血管系统病理、生理信息，这些信息有助于身体健康状况的诊断分析。When a large amount of blood enters the artery, the pressure of the artery will increase and the diameter of the artery will expand. The expansion of the artery can be felt at a shallower part of the body surface, which is the so-called pulse. As an information carrier closely related to cardiovascular activity, pulse wave contains extremely rich pathological and physiological information of the cardiovascular system, which is helpful for the diagnosis and analysis of the health status of the body.
脉搏波信号检测技术在近几十年得到了很大发展，现有的脉搏波检测技术中，“把脉指压”方法，没有科学的数据，且指端的压力变化对信号采集的影响较大，易造成尾迹干扰；采用光电传感器检测血氧变化，再通过相应算法获得脉搏波，系统结构复杂、成本较高且对算法要求较高；采用电阻应变片和电桥电路，结构也较复杂。压阻材料一般为压敏电阻，通过测量受力情况下材料电阻的变化而得到压力信息，仍然属于间接测量，精度和灵敏度都不高，尤其是动态性能不好，只适合于缓慢变化的力的测量。The pulse wave signal detection technology has been greatly developed in recent decades. In the existing pulse wave detection technology, the method of "pulse finger pressure" has no scientific data, and the pressure change of the fingertip has a great influence on the signal acquisition. It is easy to cause wake interference; the photoelectric sensor is used to detect blood oxygen changes, and then the pulse wave is obtained through the corresponding algorithm. The system structure is complex, the cost is high, and the algorithm requirements are high; the resistance strain gauge and bridge circuit are used, and the structure is also more complicated. The piezoresistive material is generally a piezoresistor, and the pressure information is obtained by measuring the change of the material resistance under the force, which is still an indirect measurement, and the accuracy and sensitivity are not high, especially the dynamic performance is not good, and it is only suitable for slowly changing forces. Measurement.
综上所述，现有技术的脉搏检测装置存在结构较为复杂的技术问题。To sum up, the pulse detection device in the prior art has a technical problem of relatively complex structure.
发明内容Contents of the invention
本发明实施例提供了一种脉搏检测装置及其制作方法，以解决现有技术的脉搏检测装置存在结构较为复杂的技术问题。Embodiments of the present invention provide a pulse detection device and a manufacturing method thereof, so as to solve the technical problem that the structure of the pulse detection device in the prior art is relatively complex.
第一方面，本发明实施例提供了一种脉搏检测装置，包括：In a first aspect, an embodiment of the present invention provides a pulse detection device, including:
压电传感层，所述压电传感层包括柔性压电驻极体薄膜，以及分别设于所述柔性压电驻极体薄膜上、下表面的两金属电极，所述两金属电极在所述柔性压电驻极体薄膜发生形变时输出电荷量变化量；A piezoelectric sensing layer, the piezoelectric sensing layer includes a flexible piezoelectric electret film, and two metal electrodes respectively arranged on the upper and lower surfaces of the flexible piezoelectric electret film, the two metal electrodes are When the flexible piezoelectric electret film is deformed, the amount of output charge changes;
数据处理机构，所述数据处理机构用于连接所述两金属电极以接收所述两金属电极输出的电荷量变化量，以及根据所述电荷量变化量确定电势变化量，以及将所述电势变化量发送至数据接收终端。A data processing mechanism, the data processing mechanism is used to connect the two metal electrodes to receive the amount of change in the amount of charge output by the two metal electrodes, determine the amount of change in potential according to the amount of change in charge, and convert the amount of change in the potential The amount is sent to the data receiving terminal.
进一步的，所述柔性压电驻极体薄膜为单层多孔膜，或由多层多孔膜通过并联或串联方式叠加而成。Further, the flexible piezoelectric electret film is a single-layer porous film, or is formed by stacking multiple layers of porous films in parallel or in series.
进一步的，所述数据处理机构包括柔性线路板，以及与所述柔性电路板连接的纽扣电池。Further, the data processing mechanism includes a flexible circuit board, and a button battery connected to the flexible circuit board.
进一步的，还包括：Further, it also includes:
与所述压电传感层形状相适应的柔性容纳腔，所述柔性容纳腔一端开口，用于容纳所述压电传感层；A flexible accommodation cavity adapted to the shape of the piezoelectric sensing layer, one end of the flexible accommodation cavity is open, for accommodating the piezoelectric sensing layer;
屏蔽层，所述屏蔽层为设置于所述柔性容纳腔外表面的金属层，并与设置于所述屏蔽层与所述柔性容纳腔之间的所述纽扣电池的负极相连。A shielding layer, the shielding layer is a metal layer arranged on the outer surface of the flexible accommodation chamber, and is connected to the negative electrode of the button battery arranged between the shielding layer and the flexible accommodation chamber.
进一步的，所述柔性容纳腔包括凹状曲面结构，以对所采集的脉搏信号进行汇聚，从而实现所述脉搏信号的放大。Further, the flexible accommodating cavity includes a concave curved surface structure to converge the collected pulse signals, so as to realize the amplification of the pulse signals.
进一步的，还包括：Further, it also includes:
两保护层，均为设于所述柔性容纳腔内的所述压电传感层上、下表面的柔性填充物，且设置于所述压电传感层下表面的保护层，用于将脉搏信号从人体皮肤表面传递至所述压电传感层，以及实现脉搏信号传输路径与所述压电传感层的阻抗匹配。The two protective layers are both flexible fillers arranged on the upper and lower surfaces of the piezoelectric sensing layer in the flexible accommodation cavity, and the protective layer arranged on the lower surface of the piezoelectric sensing layer is used to The pulse signal is transmitted from the human skin surface to the piezoelectric sensing layer, and the impedance matching between the pulse signal transmission path and the piezoelectric sensing layer is realized.
进一步的，还包括：Further, it also includes:
绝缘薄膜层，所述绝缘薄膜层设置于所述压电传感层朝向脉搏检测处的一侧面与所述保护层之间。An insulating thin film layer, the insulating thin film layer is arranged between a side of the piezoelectric sensing layer facing the pulse detection part and the protective layer.
第二方面，本发明实施例还提供了一种第一方面所述的脉搏检测装置的制作方法，包括：In the second aspect, the embodiment of the present invention also provides a manufacturing method of the pulse detection device described in the first aspect, including:
获取预设形状的柔性压电驻极体薄膜，并在所述柔性压电驻极体薄膜的上、下表面分别设置一金属电极，以通过所述金属电极输出所述柔性压电驻极体薄膜在发生形变时产生的电荷量变化量；Obtain a flexible piezoelectric electret film with a preset shape, and set a metal electrode on the upper and lower surfaces of the flexible piezoelectric electret film, so as to output the flexible piezoelectric electret through the metal electrode The amount of charge change generated when the film is deformed;
将所述金属电极与数据处理机构相连接，以使所述数据处理机构通过所述金属电极获取所述柔性压电驻极体薄膜在发生形变时产生的电荷量变化量，以及根据所述电荷量变化量确定电势变化量，以及将所述电势变化量发送至数据接收终端。The metal electrode is connected with the data processing mechanism, so that the data processing mechanism obtains the amount of charge change generated when the flexible piezoelectric electret film is deformed through the metal electrode, and according to the charge The quantity change determines the potential change amount, and sends the potential change amount to the data receiving terminal.
进一步，所述获取预设形状的柔性压电驻极体薄膜，并在所述柔性压电驻极体薄膜的上、下表面分别设置一金属电极，以通过所述金属电极输出所述柔性压电驻极体薄膜在发生形变时产生的电荷量变化量之后，还包括：Further, the flexible piezoelectric electret film with a preset shape is obtained, and a metal electrode is respectively arranged on the upper and lower surfaces of the flexible piezoelectric electret film, so as to output the flexible piezoelectric electret film through the metal electrode. After the change in the amount of charge generated when the electroelectret film is deformed, it also includes:
获取与所述压电传感层的形状相适应的柔性容纳腔，以容纳所述压电传感层；Obtaining a flexible accommodation chamber adapted to the shape of the piezoelectric sensing layer to accommodate the piezoelectric sensing layer;
在所述柔性容纳腔的外表面设置屏蔽层，并使所述屏蔽层与设置于所述屏蔽层与所述柔性容纳腔之间的数据处理机构的纽扣电池的负极相连，其中，所述屏蔽层为金属层。A shielding layer is arranged on the outer surface of the flexible accommodation cavity, and the shielding layer is connected to the negative electrode of the button battery of the data processing mechanism arranged between the shielding layer and the flexible accommodation cavity, wherein the shielding layer is a metal layer.
进一步，所述获取与所述压电传感层的形状相适应的柔性容纳腔，以容纳所述压电传感层，包括：Further, the acquisition of a flexible accommodation cavity adapted to the shape of the piezoelectric sensing layer to accommodate the piezoelectric sensing layer includes:
获取与所述压电传感层的形状相适应的柔性容纳腔；obtaining a flexible accommodation cavity adapted to the shape of the piezoelectric sensing layer;
在所述压电传感层的上、下表面分别设置保护层，通过设置于所述压电传感层下表面的保护层将脉搏信号从人体皮肤表面传递至所述压电传感层，以及实现脉搏信号传输路径与所述压电传感层的阻抗匹配；Protective layers are respectively arranged on the upper and lower surfaces of the piezoelectric sensing layer, and the pulse signal is transmitted from the human skin surface to the piezoelectric sensing layer through the protective layer arranged on the lower surface of the piezoelectric sensing layer, And realizing the impedance matching between the pulse signal transmission path and the piezoelectric sensing layer;
将上、下表面均设置有所述保护层的压电传感层固定于所述柔性容纳腔内。The piezoelectric sensing layer with the protective layer on both its upper and lower surfaces is fixed in the flexible accommodating cavity.
进一步，所述在所述压电传感层的表面包裹保护层，包括：Further, the wrapping protective layer on the surface of the piezoelectric sensing layer includes:
在所述压电传感层朝向脉搏检测处的一侧面设置绝缘薄膜层，以得到复合层；An insulating thin film layer is arranged on the side of the piezoelectric sensing layer facing the pulse detection part to obtain a composite layer;
在所述复合层的外表面包裹保护层；Wrapping a protective layer on the outer surface of the composite layer;
所述将包裹有所述保护层的压电传感层固定于所述柔性容纳腔中，包括：The fixing of the piezoelectric sensing layer wrapped with the protective layer in the flexible accommodation cavity includes:
将包裹有所述保护层的所述复合层固定于所述柔性容纳腔中。The composite layer wrapped with the protection layer is fixed in the flexible accommodation chamber.
本发明实施例提供的脉搏检测装置的技术方案，包括压电传感层和数据处理机构，压电传感层包括柔性压电驻极体薄膜，以及分别设于柔性压电驻极体薄膜上、下表面的两金属电极，两金属电极用于在柔性压电驻极体薄膜发生形变时输出电荷量变化量；数据处理机构用于连接两金属电极以接收两金属电极输出的电荷量变化量，以及根据电荷量变化量确定电势变化量，以及将电势变化量发送至数据接收终端。通过在柔性压电驻极体薄膜两侧设置金属电极使压电传感层具有柔性，从而使脉搏检测装置具有柔性，可以更好地与脉搏检测处贴合，同时相对于现有技术大大降低了检测装置的结构复杂度，有利于提高脉搏信号检测的准确性。The technical scheme of the pulse detection device provided by the embodiment of the present invention includes a piezoelectric sensing layer and a data processing mechanism. The piezoelectric sensing layer includes a flexible piezoelectric electret film, and is respectively arranged on the flexible piezoelectric electret film. 1. Two metal electrodes on the lower surface, the two metal electrodes are used to output the change of charge when the flexible piezoelectric electret film is deformed; the data processing mechanism is used to connect the two metal electrodes to receive the change of charge output by the two metal electrodes , and determine the potential change amount according to the charge amount change amount, and send the potential change amount to the data receiving terminal. By arranging metal electrodes on both sides of the flexible piezoelectric electret film, the piezoelectric sensing layer is flexible, so that the pulse detection device is flexible, which can be better fitted to the pulse detection site, and at the same time, it is greatly reduced compared to the existing technology. The structural complexity of the detection device is reduced, which is conducive to improving the accuracy of pulse signal detection.
附图说明Description of drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图做一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.
图1是本发明实施例一提供的脉搏检测装置的结构示意图；FIG. 1 is a schematic structural diagram of a pulse detection device provided in Embodiment 1 of the present invention;
图2是本发明实施例一提供的又一脉搏检测装置的结构示意图；Fig. 2 is a schematic structural diagram of another pulse detection device provided in Embodiment 1 of the present invention;
图3是本发明实施例一提供的又一脉搏检测装置的结构示意图；Fig. 3 is a schematic structural diagram of another pulse detection device provided in Embodiment 1 of the present invention;
图4是本发明实施例一提供的腕带式脉搏检测装置的结构示意图；Fig. 4 is a schematic structural diagram of a wristband-type pulse detection device provided by Embodiment 1 of the present invention;
图5是本发明实施例二提供的脉搏检测装置的制作方法的流程图。Fig. 5 is a flow chart of the manufacturing method of the pulse detection device provided by the second embodiment of the present invention.
具体实施方式Detailed ways
为使本发明的目的、技术方案和优点更加清楚，以下将参照本发明实施例中的附图，通过实施方式清楚、完整地描述本发明的技术方案，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through implementation with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the embodiment of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
实施例一Embodiment one
图1是本发明实施例一提供的脉搏检测装置的结构示意图。本实施例的技术方案适用于基于压电传感器检测脉搏的情况，尤其适应于基于柔性压电薄膜检测脉搏的情况。如图1所示，该脉搏检测装置包括：压电传感层11和数据处理机构12，压电传感层11包括柔性压电驻极体薄膜110，以及分别设于柔性压电驻极体薄膜110上、下表面的两金属电极111，两金属电极111用于在柔性压电驻极体薄膜110发生形变时输出电荷量变化量；数据处理机构12用于连接两金属电极111以接收两金属电极111输出的电荷量变化量，以及根据电荷量变化量确定电势变化量，以及将电势变化量发送至数据接收终端。FIG. 1 is a schematic structural diagram of a pulse detection device provided by Embodiment 1 of the present invention. The technical solution of this embodiment is applicable to the detection of the pulse based on the piezoelectric sensor, especially suitable for the detection of the pulse based on the flexible piezoelectric film. As shown in Figure 1, the pulse detection device includes: a piezoelectric sensing layer 11 and a data processing mechanism 12, the piezoelectric sensing layer 11 includes a flexible piezoelectric electret film 110, and is respectively arranged on the flexible piezoelectric electret Two metal electrodes 111 on the upper and lower surfaces of the film 110, the two metal electrodes 111 are used to output the amount of charge change when the flexible piezoelectric electret film 110 is deformed; the data processing mechanism 12 is used to connect the two metal electrodes 111 to receive the two The amount of change in charge output by the metal electrode 111, and the amount of change in potential determined according to the amount of change in charge, and the amount of change in potential is sent to the data receiving terminal.
其中，柔性压电驻极体薄膜110是由压电驻极体制成的一层包含有大量蜂窝状孔洞的封闭薄膜，即多孔膜，在孔洞的上、下表面分别沉积有大量的正负电荷；柔性压电驻极体薄膜还可以为多层多孔膜通过并联或串联的方式叠加并而成，以增强灵敏度。其中，压电驻极体为非极性聚合物，主要以聚丙烯(Polypropylene，PP)为原材料，也有基于聚对苯二甲酸乙二醇酯(Polyethylene terephthalate，PET)、聚萘二甲酸乙二醇酯(Polyethylenenaphthalate，PEN)等其它聚合物材料的。压电驻极体的特点有：1)、质量轻(几十到几百毫克)、厚度薄(几十到几百微米)；2)、柔软，可弯折，可加工性强；3)、灵敏度高，可达600pC/N；4)、基本无热释电效应，在工作温度范围内其灵敏度受温度的影响较小；5)、对垂直方向的力敏感，对水平方向的剪切力不敏感，非常适合检测正面压力而不受材料弯折的影响；6)、压电响应的线性度好；7)、材料成本低廉。Among them, the flexible piezoelectric electret film 110 is a closed film made of piezoelectric electret that contains a large number of honeycomb holes, that is, a porous film, and a large amount of positive and negative charges are deposited on the upper and lower surfaces of the holes. ; The flexible piezoelectric electret film can also be formed by stacking and forming multi-layer porous films in parallel or in series to enhance sensitivity. Among them, the piezoelectric electret is a non-polar polymer, mainly based on polypropylene (Polypropylene, PP), and also based on polyethylene terephthalate (PET), polyethylene naphthalate Alcohol ester (Polyethylenenaphthalate, PEN) and other polymer materials. The characteristics of piezoelectric electrets are: 1), light weight (tens to hundreds of milligrams), thin thickness (tens to hundreds of microns); 2), soft, bendable, and strong processability; 3) , high sensitivity, up to 600pC/N; 4), basically no pyroelectric effect, and its sensitivity is less affected by temperature in the working temperature range; 5), sensitive to vertical force, but sensitive to horizontal shear Insensitive to force, it is very suitable for detecting positive pressure without being affected by material bending; 6), the linearity of the piezoelectric response is good; 7), and the material cost is low.
为了快速准确地检测脉搏信号，本实施例在柔性压电驻极体薄膜110的上、下表面分别设置有金属电极111，以获取柔性压电驻极体薄膜110在发生形变时产生的电荷变化量；为了更好地测量压电传感层的柔性压电驻极体薄膜在发生形变时产生的电荷变化量，本实施例的两金属电极均设置有引脚112。即柔性压电驻极体薄膜110及其上、下表面的金属电极111、以及两金属电极的引脚112形成一个压电传感层11，也就是压电传感器(力—电转换机构)。当然，为了提高所采集电信号的信噪比，通常在数据处理机构设置电荷放大器，从而将两金属电极输出的电荷量变化量转换为电势变化量。In order to detect the pulse signal quickly and accurately, in this embodiment, metal electrodes 111 are respectively arranged on the upper and lower surfaces of the flexible piezoelectric electret film 110, so as to obtain the charge change generated when the flexible piezoelectric electret film 110 deforms. amount; in order to better measure the amount of charge change generated when the flexible piezoelectric electret film of the piezoelectric sensing layer is deformed, the two metal electrodes of this embodiment are provided with pins 112 . That is, the flexible piezoelectric electret film 110, the metal electrodes 111 on the upper and lower surfaces, and the pins 112 of the two metal electrodes form a piezoelectric sensing layer 11, that is, a piezoelectric sensor (force-electric conversion mechanism). Of course, in order to improve the signal-to-noise ratio of the collected electrical signal, a charge amplifier is usually installed in the data processing mechanism, so as to convert the change in charge output by the two metal electrodes into a change in potential.
在压力作用下，柔性压电驻极体薄膜110的多孔结构被压缩，内部电偶极矩密度发生变化，引起其上、下表面的金属电极内的补偿电荷发生变化，力信号转换成电信号；在没有金属电极的空白区域，则无法采集补偿电荷，因此不具备力—电转换能力，不构成压电传感器。Under pressure, the porous structure of the flexible piezoelectric electret film 110 is compressed, and the internal electric dipole moment density changes, causing the compensation charges in the metal electrodes on the upper and lower surfaces to change, and the force signal is converted into an electrical signal ; In the blank area without metal electrodes, the compensation charge cannot be collected, so it does not have force-electric conversion capability and does not constitute a piezoelectric sensor.
其中，柔性压电驻极体薄膜110优选裁剪为圆形，该形状有助于柔性压电驻极体薄膜与容纳腔贴合，特别是与柔性容纳腔贴合。Wherein, the flexible piezoelectric electret film 110 is preferably cut into a circular shape, which is helpful for the flexible piezoelectric electret film to attach to the accommodation cavity, especially to attach to the flexible accommodation cavity.
其中，数据处理机构12包括柔性电路板，以及与该柔性电路板相连接的纽扣电池，柔性电路板连接两金属电极111的引脚112，以接收两金属电极111在柔性压电驻极体薄膜110形变时产生的电荷量变化量，并根据电荷量变化量确定电势变化量，并通过有线或无线通信方式将电势变化量发送至数据接收终端。具体地，柔性压电驻极体薄膜110上、下表面的金属电极111分别通过连接各自引脚112的导线连接柔性电路板，且连接两引脚112的导线位置不重叠，因此导线区域不产生额外的信号，不会对压电传感层产生的信号带来干扰。Wherein, the data processing mechanism 12 includes a flexible circuit board, and a button battery connected to the flexible circuit board, and the flexible circuit board connects the pins 112 of the two metal electrodes 111 to receive the two metal electrodes 111 on the flexible piezoelectric electret film. 110 is generated when the deformation occurs, and the potential change is determined according to the charge change, and the potential change is sent to the data receiving terminal through wired or wireless communication. Specifically, the metal electrodes 111 on the upper and lower surfaces of the flexible piezoelectric electret film 110 are respectively connected to the flexible circuit board through the wires connecting the respective pins 112, and the positions of the wires connecting the two pins 112 do not overlap, so the wire area does not generate The additional signal does not interfere with the signal generated by the piezoelectric sensing layer.
其中，本实施例的数据处理机构优选通过无线通信方式将电势变化量发送至数据接收终端。数据接收终端可以是专用的脉搏数据接收设备，也可以是手机等智能设备。Wherein, the data processing mechanism of this embodiment preferably sends the potential change amount to the data receiving terminal through wireless communication. The data receiving terminal can be a dedicated pulse data receiving device, or a smart device such as a mobile phone.
进一步的，该脉搏检测装置还包括与压电传感层形状相适应的柔性容纳腔13，柔性容纳腔13一端开口，用于容纳压电传感层11。柔性容纳腔13的内部为凹状曲面结构，柔性容纳腔13的整体结构类似于圆饼，有助于对测量的脉搏能量进行汇集以方便检测，亦可起到一定的屏蔽作用，防止外界的噪声对所采集的脉搏信号的干扰，进而增强信号的信噪比。示例性的，柔性容纳腔整体类似于“听诊头”，或者柔性容纳腔的纵截面为抛物线形。Further, the pulse detection device also includes a flexible accommodation chamber 13 adapted to the shape of the piezoelectric sensing layer, and one end of the flexible accommodation chamber 13 is open for accommodating the piezoelectric sensing layer 11 . The interior of the flexible accommodation cavity 13 is a concave curved surface structure. The overall structure of the flexible accommodation cavity 13 is similar to a round cake, which helps to collect the measured pulse energy for easy detection, and also plays a certain shielding role to prevent external noise. Interference to the collected pulse signal, thereby enhancing the signal-to-noise ratio of the signal. Exemplarily, the flexible accommodating chamber as a whole is similar to an "auscultation head", or the longitudinal section of the flexible accommodating chamber is parabolic.
为了降低外界对脉搏检测装置的干扰，以及提高检测结果的准确性，该柔性容纳腔13的外表面还设置有屏蔽层14，且数据处理机构12及其纽扣电池设置于柔性容纳腔13与该屏蔽层14之间的夹层中，纽扣电池的阴极与屏蔽层14连接，以使屏蔽层14的电位与纽扣电池的阴极电位相同。本实施例的屏蔽层为金属层，且优选为铜箔层In order to reduce the interference of the outside world to the pulse detection device and improve the accuracy of the detection results, the outer surface of the flexible accommodation chamber 13 is also provided with a shielding layer 14, and the data processing mechanism 12 and its button battery are arranged between the flexible accommodation chamber 13 and the flexible accommodation chamber 13. In the interlayer between the shielding layers 14, the cathode of the button battery is connected to the shielding layer 14, so that the potential of the shielding layer 14 is the same as that of the cathode of the button battery. The shielding layer of this embodiment is a metal layer, and is preferably a copper foil layer
具体地，柔性容纳腔13的外表面包裹着一层均匀的铜箔，覆盖整个柔性容纳腔外表面以及四周边缘，而且压电传感层上表面的金属电极、下表面金属电极与数据处理机构形成回路。这样在整个压电传感层的外侧形成了金属包围层，从而形成电磁屏蔽，减小干扰。Specifically, the outer surface of the flexible accommodation cavity 13 is wrapped with a uniform layer of copper foil, covering the entire outer surface of the flexible accommodation cavity and the surrounding edges, and the metal electrodes on the upper surface of the piezoelectric sensing layer, the metal electrodes on the lower surface and the data processing mechanism Form a loop. In this way, a metal surrounding layer is formed outside the entire piezoelectric sensing layer, thereby forming electromagnetic shielding and reducing interference.
进一步的，该脉搏检测机构还包括两层由柔性填充物所制成的保护层15，且两保护层15分别设置于压电传感层11的上、下表面，以包裹整个压电传感层11。两保护层15充满整个柔性容纳腔13，从而使压电传感层11通过保护层15固定在柔性容纳腔13内，有助于保护压电传感层11，防止压电传感层11的磨损。另外，设置于压电传感层11下表面的保护层15用于将脉搏信号从人体皮肤表面传递至压电传感层，以及实现脉搏信号传输路径与压电传感层的阻抗匹配。需要说明的是，本实施例不对保护层的材料进行限制，只要具备良好的力学性质，具有良好的延展性，能均匀地传递压力即可。Further, the pulse detection mechanism also includes two layers of protective layers 15 made of flexible fillers, and the two protective layers 15 are respectively arranged on the upper and lower surfaces of the piezoelectric sensing layer 11 to wrap the entire piezoelectric sensing layer. Layer 11. The two protective layers 15 fill the entire flexible accommodation chamber 13, so that the piezoelectric sensing layer 11 is fixed in the flexible accommodation chamber 13 through the protective layer 15, which helps to protect the piezoelectric sensing layer 11 and prevent the piezoelectric sensing layer 11 from wear and tear. In addition, the protective layer 15 disposed on the lower surface of the piezoelectric sensing layer 11 is used to transmit the pulse signal from the surface of the human skin to the piezoelectric sensing layer, and realize impedance matching between the pulse signal transmission path and the piezoelectric sensing layer. It should be noted that this embodiment does not limit the material of the protective layer, as long as it has good mechanical properties, good ductility, and can transmit pressure uniformly.
进一步的，该脉搏检测机构还包括绝缘薄膜层16，绝缘薄膜层16设置于压电传感层11朝向脉搏检测处的一侧面与保护层15之间。该绝缘薄膜层16也是柔性材料，但没有电气特性，仅用来保护柔性压电驻极体薄膜110，防止人体汗液及其他杂质与柔性压电驻极体薄膜110直接接触而损坏该柔性压电驻极体薄膜110，有利于增强压电传感层11的使用寿命。由于柔性压电驻极体薄膜110并未与人体皮肤直接接触，人体微动作的尾迹干扰也可大幅度的降低。Further, the pulse detection mechanism further includes an insulating film layer 16 , and the insulating film layer 16 is disposed between a side of the piezoelectric sensing layer 11 facing the pulse detection site and the protective layer 15 . The insulating film layer 16 is also a flexible material, but has no electrical properties, and is only used to protect the flexible piezoelectric electret film 110, preventing human body sweat and other impurities from directly contacting the flexible piezoelectric electret film 110 and damaging the flexible piezoelectric electret film 110. The electret film 110 is beneficial to enhance the service life of the piezoelectric sensing layer 11 . Since the flexible piezoelectric electret film 110 is not in direct contact with the human skin, the wake interference of the micro-movements of the human body can also be greatly reduced.
本实施例的脉搏检测装置可制成可穿戴式设备，如图4所示。形状如手表，表盘位置是脉搏检测装置1，表带2有多个扎孔，方便不同尺寸的使用者佩戴；脉搏检测装置1通过无线通信方式与数据接收终端3进行数据传输。The pulse detection device of this embodiment can be made into a wearable device, as shown in FIG. 4 . The shape is like a watch, the dial position is the pulse detection device 1, and the strap 2 has multiple piercing holes, which are convenient for users of different sizes to wear; the pulse detection device 1 performs data transmission with the data receiving terminal 3 through wireless communication.
本实施例所述的脉搏检测装置工作时，可置于腕部桡动脉处，用于检测心脏的搏动(振动)沿动脉血管和血流向外周传播而形成的脉搏波信号，具体为：将该脉搏检测装置固定于腕部桡动脉处，脉搏搏动时，使与皮肤接触的保护层产生振动，进而使包裹于保护层中的压电传感层产生振动，压电传感层振动时，柔性压电驻极体薄膜的多孔结构被压缩，内部电偶极矩密度发生变化，引起其上、下表面金属电极内的补偿电荷发生变化，数据处理机构连接两金属电极，并通过两金属电极获取柔性压电驻极体薄膜在形变时产生的电荷量变化量，以及根据该电荷量变化量确定电势变化量，以及将该电势变化量发送至数据接收终端，数据接收终端根据该电势变化量确定脉搏振动信号。When the pulse detection device described in this embodiment works, it can be placed at the radial artery of the wrist to detect the pulse wave signal formed by the pulse (vibration) of the heart propagating along the arterial vessel and blood flow to the periphery, specifically: The pulse detection device is fixed at the radial artery of the wrist. When the pulse beats, the protective layer in contact with the skin will vibrate, and then the piezoelectric sensing layer wrapped in the protective layer will vibrate. When the piezoelectric sensing layer vibrates, The porous structure of the flexible piezoelectric electret film is compressed, and the internal electric dipole moment density changes, causing the compensation charge in the metal electrodes on the upper and lower surfaces to change. The data processing mechanism connects the two metal electrodes and passes the two metal electrodes. Obtain the amount of change in charge generated by the flexible piezoelectric electret film during deformation, determine the amount of change in potential according to the amount of change in charge, and send the amount of change in potential to the data receiving terminal, and the data receiving terminal uses the amount of change in the potential Determine the pulse vibration signal.
需要说明的是，本实施例的脉搏检测装置可放置于：1)、桡动脉，手大拇指的根部的掌面的桡侧(那儿有骨头结节隆起，就挨着隆起的手掌面)可以摸到动脉搏动，就是桡动脉；2)、在肱动脉，肘上肱二头肌的内侧，也是测量血压时听诊器放置的位置；3)、颈动脉，存在于脊椎动物颈部的动脉；4)、足背动脉；5)、股动脉。It should be noted that the pulse detection device of the present embodiment can be placed on: 1), the radial artery, the radial side of the palm surface of the root of the thumb (there is a bulge of bone nodules, just next to the palm surface of the bulge) If you feel the pulse of the artery, it is the radial artery; 2) In the brachial artery, the inner side of the biceps brachii on the elbow, which is also the position where the stethoscope is placed when measuring blood pressure; 3) The carotid artery, which exists in the neck of vertebrates; 4 ), dorsalis pedis artery; 5), femoral artery.
上述不同脉搏测量点由脉搏跳动引起的压力能量大小不同，相应的脉搏检测装置与不同测量点的贴合紧密程度也不同，所采集的信号的信噪比也就不同，因此实际进行脉搏检测时，可根据具体应用场景选择脉搏测量点以及脉搏检测装置与测量点之间的贴合力度。总体上来说，人体腕部桡动脉处是主流的脉搏检测位置。The above-mentioned different pulse measurement points have different pressure energy caused by pulse beating, and the corresponding pulse detection device has different degrees of adhesion to different measurement points, and the signal-to-noise ratio of the collected signals is also different. Therefore, when the actual pulse detection , the pulse measurement point and the bonding strength between the pulse detection device and the measurement point can be selected according to the specific application scenario. Generally speaking, the radial artery at the wrist of the human body is the mainstream pulse detection location.
本实施例的脉搏检测装置除能提供原始数据外，还可以通过该信息获得脉搏相关的物理量及有关人体生理健康的信息量，这更有利于研究及临床分析应用。这些信息量包括：1)、动脉的弹性；2)、管腔的大小；3)、血液的密度和粘性；4)、脉搏波传导速度(PWV)，具体指心脏每次搏动射血产生的沿大动脉壁传播的压力波传导速度，是评估动脉血管僵硬度的简捷、有效、经济的非侵入性指标，能够综合反映各种危险因素对血管的损伤，是心血管事件的独立预测因子；5)、慢性精神压力；6)、血管老化；7)、心脏稳定度减弱；8)、脉搏波压力指数；9)、脉搏波粘性指数；10)、脉搏搏动指数和脉搏灌注变异指数。In addition to providing raw data, the pulse detection device in this embodiment can also obtain pulse-related physical quantities and information related to human physiological health through the information, which is more conducive to research and clinical analysis applications. The amount of information includes: 1), the elasticity of the artery; 2), the size of the lumen; 3), the density and viscosity of the blood; 4), the pulse wave velocity (PWV), which specifically refers to the pulse wave velocity (PWV) produced by each beat of the heart. The pressure wave propagation velocity propagating along the wall of the aorta is a simple, effective and economical non-invasive index for evaluating arterial stiffness, which can comprehensively reflect the damage to blood vessels caused by various risk factors, and is an independent predictor of cardiovascular events;5 ), chronic mental stress; 6), vascular aging; 7), weakened cardiac stability; 8), pulse wave pressure index; 9), pulse wave viscosity index; 10), pulsation index and pulsation variability index.
脉搏波信息的研究广泛应用于各个领域，如生物力学、医疗临床、康复工程、工程分析、体育训练、可穿戴式设备等诸多领域，具有重要的科学意义及应用价值。因此相较于现有技术的脉搏检测装置，本实施例所述的脉搏检测装置具有更为广泛的应用场景。The study of pulse wave information is widely used in various fields, such as biomechanics, clinical medicine, rehabilitation engineering, engineering analysis, sports training, wearable devices and many other fields, which has important scientific significance and application value. Therefore, compared with the pulse detection device in the prior art, the pulse detection device described in this embodiment has wider application scenarios.
本实施例提供的脉搏检测装置的技术方案，包括压电传感层和数据处理机构，压电传感层包括柔性压电驻极体薄膜，以及分别设于柔性压电驻极体薄膜上、下表面的两金属电极，两金属电极用于在柔性压电驻极体薄膜发生形变时输出电荷量变化量；数据处理机构用于连接两金属电极以接收两金属电极输出的电荷量变化量，以及根据电荷量变化量确定电势变化量，以及将电势变化量发送至数据接收终端。通过在柔性压电驻极体薄膜两侧设置金属电极使压电传感层具有柔性，从而使脉搏检测装置具有柔性，可以更好地与脉搏检测处贴合，同时相对于现有技术大大降低了检测装置的结构复杂度，有利于提高脉搏信号检测的准确性。The technical scheme of the pulse detection device provided in this embodiment includes a piezoelectric sensing layer and a data processing mechanism. The piezoelectric sensing layer includes a flexible piezoelectric electret film, and is respectively arranged on the flexible piezoelectric electret film, Two metal electrodes on the lower surface, the two metal electrodes are used to output the change in charge when the flexible piezoelectric electret film is deformed; the data processing mechanism is used to connect the two metal electrodes to receive the change in charge output by the two metal electrodes, And determining the potential change amount according to the charge amount change amount, and sending the potential change amount to the data receiving terminal. By arranging metal electrodes on both sides of the flexible piezoelectric electret film, the piezoelectric sensing layer is flexible, so that the pulse detection device is flexible, which can be better fitted to the pulse detection site, and at the same time, it is greatly reduced compared to the existing technology. The structural complexity of the detection device is reduced, which is conducive to improving the accuracy of pulse signal detection.
实施例二Embodiment two
图5是本发明实施例二提供的脉搏检测装置的制作方法的流程图。本发明实施例适应于柔性脉搏检测装置的制作。如图5所示，该制作方法包括：Fig. 5 is a flow chart of the manufacturing method of the pulse detection device provided by the second embodiment of the present invention. The embodiment of the present invention is suitable for making a flexible pulse detection device. As shown in Figure 5, the production method includes:
S101、获取预设形状的柔性压电驻极体薄膜，并在柔性压电驻极体薄膜的上、下表面分别设置一金属电极，以通过金属电极输出柔性压电驻极体薄膜在发生形变时产生的电荷量变化量。S101. Obtain a flexible piezoelectric electret film with a preset shape, and respectively set a metal electrode on the upper and lower surfaces of the flexible piezoelectric electret film, so as to output the deformation of the flexible piezoelectric electret film through the metal electrode. The amount of change in the amount of charge generated when .
将一片柔性压电驻极体薄膜裁剪成预设形状，比如圆形，然后如图1所示，在其上、下表面分别印刷金属电极111得到压电传感层11，即压电传感器。通过两金属电极可以测量柔性压电驻极体薄膜在发生形变时产生的电荷量变化量，实现了将力信号转换为电信号。A piece of flexible piezoelectric electret film is cut into a predetermined shape, such as a circle, and then as shown in FIG. 1 , metal electrodes 111 are printed on its upper and lower surfaces respectively to obtain a piezoelectric sensing layer 11, that is, a piezoelectric sensor. Through the two metal electrodes, the amount of charge change generated when the flexible piezoelectric electret film is deformed can be measured, and the force signal is converted into an electrical signal.
在压力作用下，柔性压电驻极体薄膜的多孔结构被压缩，内部电偶极矩密度发生变化，引起其上、下表面金属电极内的补偿电荷发生变化，力信号转换成电信号；在没有金属电极的空白区域，则无法采集补偿电荷，因此不具备力—电转换能力，不构成压电传感器。Under pressure, the porous structure of the flexible piezoelectric electret film is compressed, and the internal electric dipole moment density changes, causing the compensation charge in the metal electrodes on the upper and lower surfaces to change, and the force signal is converted into an electrical signal; The blank area without metal electrodes cannot collect compensation charges, so it does not have force-electric conversion capability and does not constitute a piezoelectric sensor.
为了便于脉搏检测装置的使用，本实施例的通过3D打印设计一个与柔性压电驻极体薄膜形状相适应的柔性容纳腔，如图2所示，柔性容纳腔13一端开口，用于容纳压电传感层11。柔性容纳腔13包括凹状曲面结构，其整体结构类似于圆饼，有助于对测量的脉搏能量进行汇集以方便检测，亦可起到一定的屏蔽作用，防止外界的噪声对所采集的脉搏信号的干扰，进而增强信号的信噪比。示例性的，柔性容纳腔整体类似于“听诊头”，或者柔性容纳腔的纵截面为抛物线形。In order to facilitate the use of the pulse detection device, a flexible accommodation cavity adapted to the shape of the flexible piezoelectric electret film is designed by 3D printing in this embodiment. As shown in Figure 2, one end of the flexible accommodation cavity 13 is open for accommodating pressure Electric sensing layer 11. The flexible accommodation chamber 13 includes a concave curved surface structure, and its overall structure is similar to a round cake, which helps to collect the measured pulse energy for convenient detection, and also plays a certain shielding role to prevent external noise from affecting the collected pulse signal. interference, thereby enhancing the signal-to-noise ratio of the signal. Exemplarily, the flexible accommodating chamber as a whole is similar to an "auscultation head", or the longitudinal section of the flexible accommodating chamber is parabolic.
为了降低外界对脉搏检测装置的干扰，以及提高检测结果的准确性，本实施例在柔性容纳腔13的外表面设置屏蔽层14(如图2)，并将屏蔽层14与数据处理机构的纽扣电池的阴极相连，以使屏蔽层14的电位与纽扣电池的阴极电位相同。具体地，柔性容纳腔13的外表面包裹着一层均匀的电极，覆盖整个柔性容纳腔外表面以及四周边缘，而且压电传感层11的上、下表面的金属电极与数据处理机构形成回路。这样在整个压电传感层的外侧形成了金属包围层，从而形成了电磁屏蔽，减小了电磁干扰。其中，本实施例优选铜箔作为屏蔽层。In order to reduce the interference of the outside world to the pulse detection device and improve the accuracy of the detection results, a shielding layer 14 (as shown in Figure 2 ) is arranged on the outer surface of the flexible accommodation chamber 13 in this embodiment, and the shielding layer 14 is connected with the buttons of the data processing mechanism. The cathodes of the batteries are connected so that the shield 14 is at the same potential as the cathode of the button cell. Specifically, the outer surface of the flexible accommodation cavity 13 is wrapped with a layer of uniform electrodes, covering the entire outer surface of the flexible accommodation cavity and the surrounding edges, and the metal electrodes on the upper and lower surfaces of the piezoelectric sensing layer 11 form a loop with the data processing mechanism . In this way, a metal surrounding layer is formed outside the entire piezoelectric sensing layer, thereby forming an electromagnetic shield and reducing electromagnetic interference. Among them, copper foil is preferably used as the shielding layer in this embodiment.
为了提高脉搏检测装置的使用寿命及其柔性，本实施例还在压电传感层的上、下表面包裹有保护层15，如图2和图3所示，使保护层15充满整个柔性容纳腔13，以使压电传感层11通过保护层15固定在柔性容纳腔13内，有助于保护压电传感层11，防止压电传感层11的磨损。另外，还可以通过设置于压电传感层下表面的保护层将脉搏信号从人体皮肤表面传递至压电传感层，以及实现脉搏信号传输路径与压电传感层的阻抗匹配。需要说明的是，本实施例不对保护层的材料进行限制，只要具备良好的力学性质，具有良好的延展性，能均匀地传递压力即可。In order to improve the service life and flexibility of the pulse detection device, this embodiment also wraps the upper and lower surfaces of the piezoelectric sensing layer with a protective layer 15, as shown in Figures 2 and 3, so that the protective layer 15 fills the entire flexible container cavity 13, so that the piezoelectric sensing layer 11 is fixed in the flexible accommodation cavity 13 through the protective layer 15, which helps to protect the piezoelectric sensing layer 11 and prevent the piezoelectric sensing layer 11 from being worn. In addition, the pulse signal can be transmitted from the human skin surface to the piezoelectric sensing layer through the protective layer arranged on the lower surface of the piezoelectric sensing layer, and the impedance matching between the pulse signal transmission path and the piezoelectric sensing layer can be realized. It should be noted that this embodiment does not limit the material of the protective layer, as long as it has good mechanical properties, good ductility, and can transmit pressure uniformly.
进一步的，如图3所示，在压电传感层11朝向脉搏检测处的一侧面与保护层15之间设置绝缘薄膜层16，以得到复合层，然后将复合层封装在柔性容纳腔13中。该绝缘薄膜层16也是柔性材料，但没有电气特性，仅用来保护柔性压电驻极体薄膜，防止人体汗液及其他杂质与柔性压电驻极体薄膜直接接触而损坏该柔性压电驻极体薄膜，有利于增强压电传感层的使用寿命。由于柔性压电驻极体薄膜并未与人体皮肤直接接触，人体微动作的尾迹干扰也可大幅度的降低。Further, as shown in FIG. 3 , an insulating film layer 16 is provided between the side of the piezoelectric sensing layer 11 facing the pulse detection part and the protective layer 15 to obtain a composite layer, and then the composite layer is packaged in the flexible accommodation cavity 13 middle. The insulating film layer 16 is also a flexible material, but has no electrical properties, and is only used to protect the flexible piezoelectric electret film, preventing human body sweat and other impurities from directly contacting the flexible piezoelectric electret film from damaging the flexible piezoelectric electret film. The bulk film is beneficial to enhance the service life of the piezoelectric sensing layer. Since the flexible piezoelectric electret film is not in direct contact with the human skin, the wake interference of the micro-movement of the human body can also be greatly reduced.
S102、将金属电极与数据处理机构相连接，以使数据处理机构通过金属电极获取柔性压电驻极体薄膜在发生形变时产生的电荷量变化量，以及根据电荷量变化量确定电势变化量，以及将电势变化量发送至数据接收终端。S102. Connecting the metal electrode to the data processing mechanism, so that the data processing mechanism obtains the amount of charge change generated when the flexible piezoelectric electret film is deformed through the metal electrode, and determines the potential change amount according to the charge change amount, And send the potential change amount to the data receiving terminal.
如图1所示，使数据处理机构的柔性电路板通过两引脚112连接柔性压电驻极体薄膜的上、下表面的金属电极111，从而可以接收柔性压电驻极体薄膜110形变时产生的电荷量变化量，以及根据电荷量变化量确定电势变化量，以及将电势变化量发送至数据接收终端，由数据接收终端对该电势变化量进行处理以得到脉搏信号。具体的，数据处理机构可以通过有线或无线通信方式将电势变化量发送至数据接收终端，本实施例优选通过无线近场通信方法将电势变化量发送至数据接收终端。而且，数据接收终端可以是专用的数据接收终端，也可以是手机等智能设备。As shown in Figure 1, the flexible circuit board of the data processing mechanism is connected to the metal electrodes 111 on the upper and lower surfaces of the flexible piezoelectric electret film through two pins 112, so that when the flexible piezoelectric electret film 110 deforms, it can receive The amount of change in charge is generated, and the amount of potential change is determined according to the amount of charge change, and the amount of potential change is sent to the data receiving terminal, and the data receiving terminal processes the amount of potential change to obtain a pulse signal. Specifically, the data processing mechanism can send the potential change to the data receiving terminal through wired or wireless communication. In this embodiment, the potential change is preferably sent to the data receiving terminal through wireless near-field communication. Moreover, the data receiving terminal may be a dedicated data receiving terminal, or may be a smart device such as a mobile phone.
其中，数据处理机构的柔性电路通过纽扣电池供电，且数据处理机构和纽扣电池优选封装在柔性容纳腔与屏蔽层之间。Wherein, the flexible circuit of the data processing mechanism is powered by a button battery, and the data processing mechanism and the button battery are preferably packaged between the flexible accommodation cavity and the shielding layer.
本实施例提供的脉搏检测装置的制作方法的技术方案，获取预设形状的柔性压电驻极体薄膜，并在柔性压电驻极体薄膜的上、下表面分别设置一金属电极，以通过金属电极输出柔性压电驻极体薄膜在发生形变时产生的电荷量变化量；将金属电极与数据处理机构相连接，以使数据处理机构通过金属电极获取柔性压电驻极体薄膜在发生形变时产生的电荷量变化量，以及根据电荷量变化量确定电势变化量，以及将电势变化量发送至数据接收终端。通过在柔性压电驻极体薄膜两侧设置金属电极使压电传感层具有柔性，从而使脉搏检测装置具有柔性，可以更好地与脉搏检测处贴合，同时相对于现有技术大大降低了检测装置的结构复杂度，有利于提高脉搏信号检测的准确性。In the technical proposal of the manufacturing method of the pulse detection device provided in this embodiment, a flexible piezoelectric electret film with a preset shape is obtained, and a metal electrode is respectively arranged on the upper and lower surfaces of the flexible piezoelectric electret film to pass The metal electrode outputs the amount of charge change generated by the flexible piezoelectric electret film when it deforms; the metal electrode is connected to the data processing mechanism so that the data processing mechanism can obtain the deformation of the flexible piezoelectric electret film through the metal electrode. The amount of change in the amount of charge generated at the time, and the amount of change in potential is determined according to the amount of change in charge, and the amount of change in potential is sent to the data receiving terminal. By arranging metal electrodes on both sides of the flexible piezoelectric electret film, the piezoelectric sensing layer is flexible, so that the pulse detection device is flexible, which can be better fitted to the pulse detection site, and at the same time, it is greatly reduced compared to the existing technology. The structural complexity of the detection device is reduced, which is conducive to improving the accuracy of pulse signal detection.
注意，上述仅为本发明的较佳实施例及所运用技术原理。本领域技术人员会理解，本发明不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本发明的保护范围。因此，虽然通过以上实施例对本发明进行了较为详细的说明，但是本发明不仅仅限于以上实施例，在不脱离本发明构思的情况下，还可以包括更多其他等效实施例，而本发明的范围由所附的权利要求范围决定。Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.
| Application Number | Priority Date | Filing Date | Title |
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| CN201810860651.6ACN108968929A (en) | 2018-08-01 | 2018-08-01 | Pulse detecting device and preparation method thereof |
| PCT/CN2018/109776WO2020024428A1 (en) | 2018-08-01 | 2018-10-11 | Pulse detection device and method for manufacturing same |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810860651.6ACN108968929A (en) | 2018-08-01 | 2018-08-01 | Pulse detecting device and preparation method thereof |
| Publication Number | Publication Date |
|---|---|
| CN108968929Atrue CN108968929A (en) | 2018-12-11 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810860651.6APendingCN108968929A (en) | 2018-08-01 | 2018-08-01 | Pulse detecting device and preparation method thereof |
| Country | Link |
|---|---|
| CN (1) | CN108968929A (en) |
| WO (1) | WO2020024428A1 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017937A (en)* | 2019-04-08 | 2019-07-16 | 清华大学深圳研究生院 | A kind of pliable pressure sensor and preparation method thereof and pulse condition analyser |
| CN110025302A (en)* | 2019-04-08 | 2019-07-19 | 清华大学深圳研究生院 | A kind of blood pressure monitor system and blood pressure acquisition methods |
| CN110296755A (en)* | 2019-06-28 | 2019-10-01 | 东华大学 | A kind of flexible sonic transducer of acoustic-electric high conversion efficiency |
| CN111388003A (en)* | 2020-03-25 | 2020-07-10 | 清华大学 | Flexible electronic auscultation device, body sound determination device and auscultation system |
| CN111579891A (en)* | 2020-05-11 | 2020-08-25 | 北京理工大学 | A coupled sensing method and sensing system for electric quantity identification and stiffness screening |
| CN112120679A (en)* | 2019-06-24 | 2020-12-25 | 中国科学院深圳先进技术研究院 | Pulse detection equipment and manufacturing method thereof |
| CN112137599A (en)* | 2019-06-26 | 2020-12-29 | 中国科学院深圳先进技术研究院 | Pulse detection device and method of making the same |
| CN112194096A (en)* | 2020-10-21 | 2021-01-08 | 中北大学 | Piezoelectric type bionic cochlear ciliary sensor based on MEMS and processing method thereof |
| CN112945429A (en)* | 2021-01-29 | 2021-06-11 | 清华大学深圳国际研究生院 | High-sensitivity flexible pressure sensor and manufacturing method thereof |
| WO2021243546A1 (en)* | 2020-06-02 | 2021-12-09 | 晶极光电科技股份有限公司 | Method for manufacturing multi-hole pressure sensor, and multi-hole pressure sensor |
| CN119138847A (en)* | 2024-08-29 | 2024-12-17 | 同济大学 | Sleep monitoring system and method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113257882B (en)* | 2021-07-06 | 2021-10-01 | 北京京东方技术开发有限公司 | Display substrate and display device |
| WO2023283312A1 (en)* | 2021-07-09 | 2023-01-12 | Ntt Research, Inc. | Non-invasive arterial tonometry system and method using cellular polypropylene film sensors |
| CN113576084A (en)* | 2021-08-18 | 2021-11-02 | 同济大学 | Integrated intelligent waistband and preparation method thereof |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001029319A (en)* | 1999-05-18 | 2001-02-06 | Seiko Instruments Inc | Piezoelectric transducer, manufacture of the same and sphygmic wave detecting device using the same |
| CN102522496A (en)* | 2011-12-21 | 2012-06-27 | 大连理工大学 | Flexible cambered-surface polyvinylidene fluoride piezoelectric sensor and manufacture method |
| CN103462595A (en)* | 2013-09-22 | 2013-12-25 | 天津万合星辰信息技术有限公司 | Portable sensor assembly |
| CN103479362A (en)* | 2013-09-05 | 2014-01-01 | 南京邮电大学 | Motor function rehabilitation monitoring system based on wireless body area network |
| CN103519792A (en)* | 2012-07-05 | 2014-01-22 | 贝辛电子科技（上海）有限公司 | Wrist type pulse wave monitoring device |
| CN204483121U (en)* | 2015-03-31 | 2015-07-22 | 广东技术师范学院 | There is the charge garment of outdoor parameter detecting function |
| CN205041376U (en)* | 2015-09-15 | 2016-02-24 | 深圳市福鹏盛科技发展有限公司 | Medical bracelet is dressed to section intelligence |
| CN106813812A (en)* | 2016-12-28 | 2017-06-09 | 华中科技大学 | A kind of electroactive flexible compound mould electric transducer of high pressure and preparation method thereof |
| CN107041738A (en)* | 2017-05-24 | 2017-08-15 | 歌尔科技有限公司 | wearable detection device |
| TW201738573A (en)* | 2016-04-28 | 2017-11-01 | 太陽誘電股份有限公司 | Vibration waveform sensor and pulse wave detector |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001029319A (en)* | 1999-05-18 | 2001-02-06 | Seiko Instruments Inc | Piezoelectric transducer, manufacture of the same and sphygmic wave detecting device using the same |
| CN102522496A (en)* | 2011-12-21 | 2012-06-27 | 大连理工大学 | Flexible cambered-surface polyvinylidene fluoride piezoelectric sensor and manufacture method |
| CN103519792A (en)* | 2012-07-05 | 2014-01-22 | 贝辛电子科技（上海）有限公司 | Wrist type pulse wave monitoring device |
| CN103479362A (en)* | 2013-09-05 | 2014-01-01 | 南京邮电大学 | Motor function rehabilitation monitoring system based on wireless body area network |
| CN103462595A (en)* | 2013-09-22 | 2013-12-25 | 天津万合星辰信息技术有限公司 | Portable sensor assembly |
| CN204483121U (en)* | 2015-03-31 | 2015-07-22 | 广东技术师范学院 | There is the charge garment of outdoor parameter detecting function |
| CN205041376U (en)* | 2015-09-15 | 2016-02-24 | 深圳市福鹏盛科技发展有限公司 | Medical bracelet is dressed to section intelligence |
| TW201738573A (en)* | 2016-04-28 | 2017-11-01 | 太陽誘電股份有限公司 | Vibration waveform sensor and pulse wave detector |
| CN106813812A (en)* | 2016-12-28 | 2017-06-09 | 华中科技大学 | A kind of electroactive flexible compound mould electric transducer of high pressure and preparation method thereof |
| CN107041738A (en)* | 2017-05-24 | 2017-08-15 | 歌尔科技有限公司 | wearable detection device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110025302A (en)* | 2019-04-08 | 2019-07-19 | 清华大学深圳研究生院 | A kind of blood pressure monitor system and blood pressure acquisition methods |
| CN110017937A (en)* | 2019-04-08 | 2019-07-16 | 清华大学深圳研究生院 | A kind of pliable pressure sensor and preparation method thereof and pulse condition analyser |
| CN112120679A (en)* | 2019-06-24 | 2020-12-25 | 中国科学院深圳先进技术研究院 | Pulse detection equipment and manufacturing method thereof |
| CN112137599A (en)* | 2019-06-26 | 2020-12-29 | 中国科学院深圳先进技术研究院 | Pulse detection device and method of making the same |
| WO2020258352A1 (en)* | 2019-06-26 | 2020-12-30 | 中国科学院深圳先进技术研究院 | Pulse detection device and manufacturing method therefor |
| CN110296755A (en)* | 2019-06-28 | 2019-10-01 | 东华大学 | A kind of flexible sonic transducer of acoustic-electric high conversion efficiency |
| CN110296755B (en)* | 2019-06-28 | 2020-12-22 | 东华大学 | A flexible acoustic sensor with high acoustoelectric conversion efficiency |
| CN111388003A (en)* | 2020-03-25 | 2020-07-10 | 清华大学 | Flexible electronic auscultation device, body sound determination device and auscultation system |
| CN111579891A (en)* | 2020-05-11 | 2020-08-25 | 北京理工大学 | A coupled sensing method and sensing system for electric quantity identification and stiffness screening |
| CN111579891B (en)* | 2020-05-11 | 2021-02-26 | 北京理工大学 | Coupling type sensing method and sensing system for electric quantity identification and rigidity screening |
| WO2021243546A1 (en)* | 2020-06-02 | 2021-12-09 | 晶极光电科技股份有限公司 | Method for manufacturing multi-hole pressure sensor, and multi-hole pressure sensor |
| CN112194096A (en)* | 2020-10-21 | 2021-01-08 | 中北大学 | Piezoelectric type bionic cochlear ciliary sensor based on MEMS and processing method thereof |
| CN112945429A (en)* | 2021-01-29 | 2021-06-11 | 清华大学深圳国际研究生院 | High-sensitivity flexible pressure sensor and manufacturing method thereof |
| CN119138847A (en)* | 2024-08-29 | 2024-12-17 | 同济大学 | Sleep monitoring system and method |
| Publication number | Publication date |
|---|---|
| WO2020024428A1 (en) | 2020-02-06 |
| Publication | Publication Date | Title |
|---|---|---|
| CN108968929A (en) | Pulse detecting device and preparation method thereof | |
| Chen et al. | Hierarchical elastomer tuned self-powered pressure sensor for wearable multifunctional cardiovascular electronics | |
| JP7338830B2 (en) | Blood pressure signal measurement system using pressure sensor array | |
| JP6377766B2 (en) | Optical fiber type continuous detection blood pressure sensor and wearable terminal thereof | |
| US20170202459A1 (en) | Wireless monitoring system | |
| CN104095622B (en) | Physiological signal sensing device | |
| CN100584276C (en) | Electronic auscultation device | |
| CN107427239A (en) | Sensor by pressure transducing to Noninvasive pulse | |
| CN106361299B (en) | Triple-film cardiovascular detection sensor | |
| CN103431848B (en) | A kind of Portable passive sensor | |
| CN106343987B (en) | A kind of graphene pulse wave of multiple points monitoring of blood pressure intelligent wearable device | |
| CN108542377A (en) | A kind of detection device measuring pulse heart rate based on PVDF piezoelectric transducers | |
| WO2017124772A1 (en) | Fetal heart and fetal movement monitoring strap, fetal heart and fetal movement monitoring device and system | |
| CN112120679A (en) | Pulse detection equipment and manufacturing method thereof | |
| CN111449637B (en) | A system and method for evaluating arteriovenous fistula vessels | |
| CN209252845U (en) | pulse detection device | |
| CN204931659U (en) | A kind of portable noinvasive continuous blood pressure monitoring sensing device | |
| KR20240035380A (en) | Vibration sensors and devices that measure periodic biological signals emitted by the human or animal body | |
| WO2017117739A1 (en) | Sleep monitoring system | |
| CN102247130A (en) | Piezoelectric blood pressure transducer | |
| CN103932685B (en) | For the sensor of human body rhythm and pace of moving things vibration | |
| CN114983367B (en) | Method and apparatus for calibrating a blood pressure estimation model for determining a blood pressure graph | |
| CN210902976U (en) | Pulse detection equipment | |
| CN203815439U (en) | Sensor used for detecting rhythm vibration of human body | |
| TWI644628B (en) | Physiological sensing fabric and method thereof |
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| CB03 | Change of inventor or designer information | Inventor after:Fang Peng Inventor after:Zhang Shixu Inventor after:Tian Lan Inventor after:Zhang Haoshi Inventor after:Li Guanglin Inventor before:Fang Peng Inventor before:Zhang Shixu Inventor before:Tian Lan Inventor before:Zhang Haoshi Inventor before:Li Guang | |
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