Flow path plate unit and blood pressure measuring device

Abstract

To provide a flow channel plate unit that can be miniaturized, and to provide a blood pressure measuring apparatus.SOLUTION: A flow channel plate unit 22 includes: a first flow channel plate 131 of which at least one surface is formed into a planar shape; a second flow channel plate 132 of which surface facing the planar-shape surface of the first flow channel plate 131 is formed into a planar shape; and an adhesive member 133 having a notch 133a formed into a flow channel shape and bonding the first flow channel plate 131 to the second flow channel plate 132.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a flow path plate unit and a blood pressure measurement device. [Background technology]

[0002] In recent years, blood pressure measuring devices used for measuring blood pressure are used as a means for checking health conditions not only in medical facilities but also at home. For example, blood pressure measuring devices measure blood pressure by inflating and deflating a cuff wrapped around the upper arm or wrist of a living body and detecting the pressure of the cuff with a pressure sensor, thereby detecting the vibration of the arterial wall.

[0003] A known technology for such blood pressure measuring devices is one in which a spacer plate is placed between a substrate having a pump etc. mounted on one side and a plate-shaped member arranged opposite the other side of the substrate, and a pattern formed on the spacer plate forms a flow path connecting the pump to the cuff (see Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-143557 A Summary of the Invention [Problem to be solved by the invention]

[0005] Recently, there has been a demand for miniaturization of blood pressure measuring devices as wearable devices worn on the wrist. However, in Patent Document 1, the spacer plate is made of synthetic resin such as polyurethane, and the dimension of the spacer in the thickness direction becomes large in order to maintain the strength required to form a flow path pattern on the spacer plate. Furthermore, in order to reliably seal the flow path, it is necessary to bond the spacer plate to the substrate / plate-shaped member, and the dimension in the thickness direction becomes large by the amount of this adhesive layer.

[0006] In this way, the thickness dimension of the integrated body of the substrate, plate-like member and spacer plate becomes large, and there is a risk that the case for accommodating these therein will also become large in size.

[0007] SUMMARY OF THE PRESENT DISCLOSURE In view of the above, an object of the present invention is to provide a flow path plate unit and a blood pressure measuring device that can be made compact. [Means for solving the problem]

[0008] According to one embodiment, there is provided a flow path plate unit comprising: a first flow path plate having at least one surface formed in a planar shape; a second flow path plate having a surface opposite to the planar surface of the first flow path plate formed in a planar shape; and an adhesive member having a notch formed in the shape of a flow path and adhering the first flow path plate and the second flow path plate.

[0009] According to this aspect, the flow path plate unit is formed by integrally forming the first flow path plate and the second flow path plate with an adhesive member, and the flow path is formed by a cutout in the adhesive member. Therefore, there is no need to form a recess that forms a flow path in the first flow path plate or the second flow path plate, and the dimension in the thickness direction of the flow path plate unit can be reduced. As a result, the flow path plate unit can be made smaller.

[0010] In the flow path plate unit according to the above aspect, the adhesive member is a double-sided tape.

[0011] According to this aspect, by using the adhesive member as double-sided tape, it is easy to form the notch, to adhere the first flow path plate and the second flow path plate, and to control the thickness. Therefore, by using the adhesive member that is double-sided tape, the flow path plate unit can easily form the flow path.

[0012] In the flow path plate unit according to the above aspect, at least one of the first flow path plate and the second flow path plate is made of a metal material.

[0013] According to this aspect, at least one of the first flow path plate and the second flow path plate can be formed of, for example, a metal plate, and the dimension of the flow path plate unit in the thickness direction can be reduced.

[0014] The flow path plate unit of the above embodiment is provided with a plurality of nozzles provided on the second flow path plate and connected to a cuff, and a fluid control unit provided in at least one of the plurality of nozzles.

[0015] Here, the cuff includes a bag-like structure that is wrapped around the upper arm, wrist, etc. of a living body when measuring blood pressure and expands when a fluid is supplied to it. The fluid includes liquid and air. When the fluid is air, the bag-like structure is, for example, an air bag that expands with air. The fluid control unit is, for example, a flow resistance such as an orifice or a check valve.

[0016] According to this aspect, by providing the fluid control section in the nozzle connected to the cuff, no additional installation space is required for the fluid control section, so the flow path plate unit can be made smaller.

[0017] The flow path plate unit of the above-mentioned embodiment is provided, wherein the adhesive member includes a third flow path plate having a flow path, a first adhesive member bonding the one main surface of the first flow path plate and one main surface of the third flow path plate, and a second adhesive member bonding the one main surface of the second flow path plate and the other main surface of the third flow path plate.

[0018] According to this embodiment, the third flow path plate having the flow path improves the degree of freedom of the flow path of the flow path plate unit, while the flow path plate unit can be made smaller because the third flow path plate does not have a recess. Furthermore, the precision of the shape of the flow path can be improved because part of the flow path of the flow path plate unit is formed in the third flow path plate.

[0019] In the flow path plate unit according to the above aspect, there is provided a flow path plate unit in which the flow path of the third flow path plate includes a fluid control section in which a fluid flows in a thickness direction of the third flow path plate.

[0020] According to this embodiment, it is possible to obtain a flow path plate unit in which a fluid control section can be provided. Furthermore, by forming the fluid control section in the flow path of the third flow path plate, the fluid control section is formed by a part of the third flow path plate. Therefore, the accuracy of the shape of the fluid control section can be improved.

[0021] In the flow path plate unit according to the above aspect, there is provided a flow path plate unit, in which the flow path of the third flow path plate includes a fluid control section in which the fluid flows in a surface direction of the third flow path plate.

[0022] According to this embodiment, it is possible to obtain a flow path plate unit in which a fluid control section can be provided. Furthermore, by forming the fluid control section in the flow path of the third flow path plate, the fluid control section is formed by a part of the third flow path plate. Therefore, the accuracy of the shape of the fluid control section can be improved.

[0023] According to one aspect, there is provided a blood pressure measuring device comprising: a first flow path plate having at least one surface formed in a planar shape; a second flow path plate having a surface opposite to the planar surface of the first flow path plate formed in a planar shape; a flow path plate unit having a notch formed in the shape of a flow path and comprising an adhesive member for adhering the first flow path plate and the second flow path plate; a pump connected to the flow path plate unit; a pressure sensor connected to the flow path plate unit; and a cuff connected to the flow path plate unit and fluidly connected to the pump and the pressure sensor via the flow path plate unit.

[0024] According to this aspect, the flow path plate unit is formed by integrally forming the first flow path plate and the second flow path plate with an adhesive member, and the flow path is formed by a cutout in the adhesive member. Therefore, there is no need to form a recess that forms a flow path in the first flow path plate or the second flow path plate, and the dimension in the thickness direction of the flow path plate unit can be reduced. As a result, the flow path plate unit can be made smaller.

[0025] In the blood pressure measurement device according to the above aspect, the adhesive member is a double-sided tape.

[0026] According to this aspect, by using the adhesive member as double-sided tape, it is easy to form the notch, to adhere the first flow path plate and the second flow path plate, and to control the thickness. Therefore, by using the adhesive member that is double-sided tape, the flow path plate unit can easily form the flow path.

[0027] The blood pressure measurement device of the above-mentioned aspect is provided with a plurality of nozzles provided on the second flow path plate and connected to a cuff, and a fluid control unit provided in at least one of the plurality of nozzles.

[0028] According to this aspect, by providing the fluid control section in the nozzle connected to the cuff, no additional installation space is required for the fluid control section, so the flow path plate unit can be made smaller, and as a result, the blood pressure measurement device can be made smaller.

[0029] In one aspect of the blood pressure measuring device described above, the adhesive member includes a third flow path plate having a flow path, a first adhesive member bonding the one main surface of the first flow path plate and one main surface of the third flow path plate, and a second adhesive member bonding the one main surface of the second flow path plate and the other main surface of the third flow path plate.

[0030] According to this embodiment, the third flow path plate having the flow path improves the degree of freedom of the flow path of the flow path plate unit, while the flow path plate unit can be made smaller because the third flow path plate does not have a recess. Furthermore, the precision of the shape of the flow path can be improved because part of the flow path of the flow path plate unit is formed in the third flow path plate.

[0031] In the blood pressure measurement device of the above aspect, there is provided a blood pressure measurement device, wherein the flow path of the third flow path plate includes a fluid control unit in which a fluid flows in a thickness direction of the third flow path plate.

[0032] According to this embodiment, it is possible to obtain a flow path plate unit in which a fluid control section can be provided. Furthermore, by forming the fluid control section in the flow path of the third flow path plate, the fluid control section is formed by a part of the third flow path plate. Therefore, the accuracy of the shape of the fluid control section can be improved.

[0033] In the blood pressure measurement device of the above aspect, there is provided a blood pressure measurement device, wherein the flow path of the third flow path plate includes a fluid control unit in which the fluid flows in a surface direction of the third flow path plate.

[0034] According to this embodiment, it is possible to obtain a flow path plate unit in which a fluid control section can be provided. Furthermore, by forming the fluid control section in the flow path of the third flow path plate, the fluid control section is formed by a part of the third flow path plate. Therefore, the accuracy of the shape of the fluid control section can be improved. Effect of the Invention

[0035] According to the present invention, it is possible to provide a flow path plate unit and a blood pressure measuring device that can be made compact. [Brief description of the drawings]

[0036] [Figure 1] FIG. 1 is a perspective view showing a configuration of a blood pressure measurement device according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a block diagram showing the configuration of the blood pressure measuring device. [Diagram 3] FIG. 2 is an exploded perspective view showing the configuration of a pump, an on-off valve, a pressure sensor, and a flow path plate unit of the blood pressure measuring device. [Figure 4] FIG. 2 is a cross-sectional view showing the configuration of a pump, a pressure sensor, and a flow path plate unit of the blood pressure measuring device. [Diagram 5] FIG. 4 is a block diagram showing the configuration of a first modified example of the blood pressure measuring device. [Figure 6] 3 is a cross-sectional view showing the configuration of a pump, a pressure sensor, a flow path plate unit, a pressure cuff, and a sensing cuff of the blood pressure measuring device. FIG. [Figure 7] FIG. 4 is a block diagram showing the configuration of a second modified example of the blood pressure measurement device according to the first embodiment of the present invention. [Figure 8] 3 is a cross-sectional view showing the configuration of a pump, a pressure sensor, a flow path plate unit, a pressure cuff, and a sensing cuff of the blood pressure measuring device. FIG. [Figure 9] FIG. 4 is a block diagram showing the configuration of a blood pressure measurement device according to a second embodiment of the present invention. [Figure 10] 3 is a cross-sectional view showing the configuration of a pump, a pressure sensor, a flow path plate unit, a pressure cuff, and a sensing cuff of the blood pressure measuring device. FIG. [Figure 11] 13 is a cross-sectional view showing the configuration of a pump, a pressure sensor, a flow path plate unit, a pressure cuff, and a sensing cuff in a modified example of the blood pressure measuring device. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0037] [First embodiment] Hereinafter, an example of a blood pressure measuring device 1 according to a first embodiment of the present invention will be described with reference to Figs. 1 to 3.

[0038] Fig. 1 is a perspective view showing the configuration of the blood pressure measurement device 1. Fig. 2 is a block diagram showing the configuration of the blood pressure measurement device 1. Fig. 3 is an exploded perspective view showing the configurations of the pump 14, the on-off valve 16, the pressure sensor 17, and the flow path plate unit 22 of the blood pressure measurement device 1. Fig. 4 is a cross-sectional view showing the configurations of the pump 14, the pressure sensor 17, and the flow path plate unit 22 of the blood pressure measurement device 1.

[0039] The blood pressure measurement device 1 is an electronic blood pressure measurement device that is attached to a living body. In this embodiment, the blood pressure measurement device 1 is an electronic blood pressure measurement device that has the form of a wearable device that is attached to the wrist and has the form of measuring blood pressure from an artery.

[0040] As shown in FIGS. 1 to 4, a blood pressure measuring device 1 includes, for example, a device body 3, a belt 4, a curler 5, a cuff structure 7, and a fluid control unit 9.

[0041] The device main body 3 includes, for example, a case 11, a display unit 12, an operation unit 13, a pump 14, an on-off valve 16, a pressure sensor 17, a power supply 18, a communication unit 19, a memory 20, a CPU 21, and a flow path plate unit 22.

[0042] The case 11 accommodates, for example, a display unit 12, an operation unit 13, a pump 14, an on-off valve 16, a pressure sensor 17, a power source 18, a communication unit 19, a memory 20, a CPU 21, and a flow path plate unit 22.

[0043] The case 11 includes, for example, an outer case 31 , a windshield 32 that covers an upper opening of the outer case 31 , and a back cover 35 that covers the lower part of the outer case 31 .

[0044] The outer case 31 is formed, for example, in a cylindrical shape. The outer case 31 includes a pair of lugs 31a provided at circumferentially symmetrical positions on the outer circumferential surface, and spring bars 31b provided between the two pairs of lugs 31a. The windshield 32 is a circular glass plate.

[0045] The display unit 12 is disposed directly below the windshield 32. The display unit 12 is electrically connected to the CPU 21. The display unit 12 is, for example, a liquid crystal display or an organic electroluminescence display. The display unit 12 displays various information including measurement results such as date and time, blood pressure values ​​such as systolic blood pressure and diastolic blood pressure, and heart rate.

[0046] The operation unit 13 is configured to allow a user to input commands. The operation unit 13 includes, for example, a plurality of buttons 41 provided on the case 11, a sensor that detects the operation of the buttons 41, and a touch panel 43 provided on the display unit 12 or the windshield 32. The operation unit 13 converts commands operated by the user into electrical signals. The sensor and the touch panel 43 are electrically connected to the CPU 21 and output the electrical signals to the CPU 21.

[0047] The pump 14 is, for example, a piezoelectric pump. The pump 14 compresses, for example, air and supplies the compressed air to the cuff structure 7 via the flow path plate unit 22. The pump 14 is electrically connected to the CPU 21.

[0048] The on-off valve 16 is a safety valve that releases air supplied to the pressure cuff 71 to the atmosphere. The on-off valve 16 is connected, for example, to a branch flow path 22c1 of a first flow path 22c, which connects the pump 14 and the on-off valve 16 to the pressure cuff 71, of the flow path plate unit 22, which will be described later. The on-off valve 16 is electrically connected to the CPU 21. For example, the on-off valve 16 is opened and closed under the control of the CPU 21.

[0049] The on-off valve 16 is a rapid exhaust valve in which, for example, the opening degree of the on-off valve 16 or the opening area of ​​the first flow path 22c is set so as to minimize fluid resistance, thereby enabling rapid exhaust. When supplying air to the pressure cuff 71 and the sensing cuff 73 during blood pressure measurement, the on-off valve 16 is switched to a closed state by being controlled by the CPU 21. When exhausting the pressure cuff 71 and the sensing cuff 73, the on-off valve 16 is switched from a closed state to an open state by being controlled by the CPU 21. The on-off valve 16 may be formed so that the opening degree can be adjusted. The on-off valve 16 may be provided integrally inside the housing of the pump 14.

[0050] The pressure sensor 17 is fluidly connected to the flow path portion 22a. The pressure sensor 17 detects, for example, the pressure of the sensing cuff 73 of the cuff structure 7 via the flow path portion 22a. The pressure sensor 17 is electrically connected to the CPU 21, converts the detected pressure into an electrical signal, and outputs it to the CPU 21.

[0051] The power supply 18 is, for example, a secondary battery such as a lithium ion battery. The power supply 18 is electrically connected to the CPU 21. The power supply 18 supplies power to the CPU 21. The power supply 18 supplies driving power to each component of the CPU 21, as well as to the display unit 12, the operation unit 13, the pump 14, the on-off valve 16, the pressure sensor 17, and the communication unit 19 via the CPU 21.

[0052] The communication unit 19 is configured to be capable of transmitting and receiving information to and from an external device wirelessly or via a wire. The communication unit 19 transmits, for example, information controlled by the CPU 21 and information such as measured blood pressure values ​​and pulse rates to the external device, and also receives a program for software update from the external device and sends it to the control unit. In this embodiment, the external device is, for example, an external terminal such as a smartphone, a tablet terminal, a personal computer, or a smart watch.

[0053] In this embodiment, the communication unit 19 and the external device may be directly connected or may be connected via a network. The communication unit 19 and the external device may be connected via a mobile communication network such as 4G or 5G, or a wireless communication line such as Wimax or Wi-Fi (registered trademark). The communication unit 19 and the external device may be connected by a wireless communication means such as Bluetooth (registered trademark), NFC (Near Field Communication), or infrared communication. Furthermore, the communication unit 19 and the external device may be connected via a wired communication line such as a USB (Universal Serial Bus) or a LAN (Local Area Network) connection by a cable. For this reason, the communication unit 19 may be configured to include a plurality of communication means such as a wireless antenna and a micro USB connector.

[0054] The memory 20 includes, for example, a RAM (Random Access Memory) and a ROM (Read Only Memory). The memory 20 stores various data. For example, the memory 20 pre-stores program data for controlling the entire blood pressure measuring device 1 and the pump 14, setting data for setting various functions of the blood pressure measuring device 1, calculation data for calculating a blood pressure value and a pulse rate from the pressure measured by the pressure sensor 17, and the like, in a changeable manner.

[0055] The CPU 21 controls the operation of the entire blood pressure measuring device 1 and the operations of the pump 14 and the on-off valve 16 based on the programs stored in the memory 20, and executes predetermined operations (functions). The CPU 21 also performs predetermined calculations, analyses, processing, etc. according to the loaded programs.

[0056] The flow path plate unit 22 is housed in the case 11. The flow path plate unit 22 fluidly connects the pump 14, the on-off valve 16, the pressure sensor 17, and cuffs 71, 73 (described later) of the cuff structure 7. The flow path plate unit 22 has a flow path section 22a therein. The flow path section 22a also fluidly connects the cuffs 71, 73 and the atmosphere via the on-off valve 16.

[0057] The flow path plate unit 22 includes a first flow path plate 131, a second flow path plate 132, and an adhesive member 133 that bonds the first flow path plate 131 and the second flow path plate 132. The flow path section 22a is formed by the first flow path plate 131, the second flow path plate 132, and the adhesive member 133.

[0058] The first flow path plate 131 has a flat surface facing the second flow path plate 132. For example, the pump 14, the on-off valve 16, and the pressure sensor 17 are fixed to the surface of the first flow path plate 131 opposite to the surface facing the second flow path plate 132. The first flow path plate 131 has, for example, a hole fluidly connected to the pump 14, a hole fluidly connected to the on-off valve 16, and a hole fluidly connected to the pressure sensor 17. The first flow path plate 131 is formed of, for example, a metal material. The first flow path plate 131 is, for example, a metal plate. The thickness of the first flow path plate 131 is, for example, 0.4 mm.

[0059] The second flow path plate 132 has a flat surface facing the first flow path plate 131. The second flow path plate 132 and the first flow path plate 131 have substantially the same outer shape on the facing surfaces. The second flow path plate 132 is made of, for example, a metal material. The second flow path plate 132 has a thickness of, for example, 0.4 mm.

[0060] The adhesive member 133 bonds the first flow path plate 131 and the second flow path plate 132. The adhesive member 133 has a notch 133a that forms the flow path portion 22a together with the first flow path plate 131 and the second flow path plate 132 when the first flow path plate 131 and the second flow path plate 132 are bonded together. That is, the adhesive member 133 is formed in substantially the same shape as the outer shape of the opposing surfaces of the flow path plates 131, 132, and is formed by partially opening the notch 133a in a shape corresponding to the flow path portion 22a.

[0061] The adhesive member 133 is, for example, a double-sided tape. An airtight material is used for the adhesive member 133. For example, the adhesive member 133 is a double-sided tape having a base material made of an airtight material such as an acrylic foam material. The thickness of the adhesive member 133 is, for example, 0.2 mm.

[0062] Such adhesive members 133 are aligned with respect to the first flow path plate 131 and the second flow path plate 132, for example, by using alignment holes provided in the first flow path plate 131 and the second flow path plate 132. The adhesive members 133 are fixed to the first flow path plate 131 and the second flow path plate 132, for example, manually by an operator.

[0063] The flow path portion 22a will be described in detail later.

[0064] As shown in FIG. 1, the belt 4 includes a first belt 61 provided on one pair of the lugs 31a and the spring bar 31b, and a second belt 62 provided on the other pair of the lugs 31a and the spring bar 31b.

[0065] The first belt 61 is a so-called parent, and is configured in a belt-like shape. The first belt 61 has a buckle 61c provided at one end. The first belt 61 is rotatably held by the outer case 31. The buckle 61c has a rectangular frame-shaped body 61d and a buckle bar 61e rotatably attached to the frame-shaped body 61d. The second belt 62 is a so-called tip, and is configured in a belt-like shape having a width that can be inserted into the frame-shaped body 61d. The second belt 62 also has a plurality of small holes 62a into which the buckle bar 61e is inserted.

[0066] In this type of belt 4, the second belt 62 is inserted into the frame-shaped body 61d, and the rod 61e attached to the small hole 62a is inserted, so that the first belt 61 and the second belt 62 are connected together and, together with the outer case 31, form a ring shape that follows the circumferential direction of the wrist.

[0067] Curler 5 is made of a resin material and is configured in a belt shape that curves along the circumferential direction of the wrist. Curler 5 has one end fixed to device body 3 on the wrist side, for example.

[0068] Curler 5 has a hardness that provides flexibility and shape retention. Here, flexibility means that curler 5 deforms in a radial direction when an external force from belt 4 is applied to curler 5. Shape retention means that curler 5 can maintain a preformed shape when no external force is applied. Curler 5 has cuff structure 7 disposed on its inner circumferential surface.

[0069] 1, the cuff structure 7 includes, for example, a pressure cuff 71, a back plate 72, and a sensing cuff 73. The cuff structure 7 is configured by laminating the pressure cuff 71, the back plate 72, and the sensing cuff 73 into an integrated structure. The cuff structure 7 is fixed to the inner surface of the curler 5.

[0070] In this embodiment, the cuff structure 7 has the pressure cuff 71 connected to the sensing cuff 73 via the fluid control unit 9, and the sensing cuff 73 is connected to the atmosphere via the fluid control unit 9.

[0071] The pressure cuff 71 is connected to the flow path plate unit 22. The pressure cuff 71 is fluidly connected to the pump 14 via the flow path plate unit 22. One main surface of the pressure cuff 71 is fixed to the inner surface of the curler 5. For example, the pressure cuff 71 is attached to the inner surface of the curler 5 with double-sided tape or adhesive. The pressure cuff 71 presses the back plate 72 and the sensing cuff 73 against the living body by inflating.

[0072] The pressure cuff 71 includes, for example, an air bag 81 . The air bag 81 is a bag-like structure, and in this embodiment, since the blood pressure measuring device 1 is configured to use air through the pump 14, an air bag will be used for the description, but if a fluid other than air is used, the bag-like structure may be a fluid bag such as a liquid bag.

[0073] The back plate 72 is attached to the wrist side surface of the pressure cuff 71 with double-sided tape, adhesive, or the like. The back plate 72 is made of a resin material and formed into a plate shape. The back plate 72 is made of, for example, polypropylene and formed into a plate shape with a thickness of about 1 mm. The back plate 72 has shape-following properties.

[0074] Here, shape conformability refers to the ability of the back plate 72 to deform so as to follow the shape of the contacted part of the wrist on which it is placed, the contacted part of the wrist refers to the area that comes into contact with the back plate 72, and contact here includes both direct contact and indirect contact.

[0075] The sensing cuff 73 is fixed to the main surface of the back plate 72 on the wrist side. The sensing cuff 73 is in direct contact with the area where the wrist artery is located. The sensing cuff 73 is formed to have the same shape as the back plate 72 in the longitudinal and width directions of the back plate 72 or a shape smaller than the back plate 72. The sensing cuff 73 inflates to press against the area where the artery is located on the palm side of the wrist. The sensing cuff 73 is pressed against the living body via the back plate 72 by the inflated pressure cuff 71.

[0076] As a specific example, the sensing cuff 73 includes one air bag 91 and a flow path body 92. Here, the air bag 91 is a bag-like structure. In this embodiment, the blood pressure measuring device 1 is configured to use air through the pump 14, so an air bag will be used for the description; however, if a fluid other than air is used, the bag-like structure may be a liquid bag or the like.

[0077] Air bag 91 is formed in a rectangular shape that is long in one direction. Air bag 91 is formed, for example, by combining two sheet members that are long in one direction and welding the edges thereof, for example, by heat.

[0078] The flow path body 92 is provided, for example, integrally with a part of one edge portion in the longitudinal direction of the air bag 91. The flow path body 92 is provided at an end portion of the air bag 91 close to the device body 3. The flow path body 92 is formed in a shape that is elongated in one direction with a width smaller than the dimension of the air bag 91 in the width direction. The flow path body 92 has, for example, a connection portion at its tip. The flow path body 92 is connected to the flow path portion 22a via the connection portion, and forms a flow path between the flow path portion 22a and the air bag 91.

[0079] The flow path body 92 is formed by, with connection parts disposed on the two sheet members, welding, for example by heat, a part of the sheet members adjacent to the region of the sheet members that constitutes the air bag 91 into a long frame shape in one direction. Note that, in the air bag 91, a part of the welded part that fixes the two sheet members into a rectangular frame shape by welding is left unwelded and is configured to be continuous with the welded part that constitutes the flow path body 92, thereby fluidly connecting the air bag 91 and the flow path body 92.

[0080] The fluid control unit 9 controls, for example, the amount of air supplied to the cuffs 71, 73. The fluid control unit 9 is, for example, a fluid resistor such as an orifice or a check valve. In this embodiment, the fluid control unit 9 includes, for example, a plurality of flow resistances. As a specific example, the fluid control unit 9 includes a first flow resistance 121 and a second flow resistance 122. The fluid control unit 9 controls the air pressure ratio of the two cuffs 71, 73 to be constant based on the flow resistance ratio between the first flow resistance 121 and the second flow resistance 122.

[0081] The fluid control unit 9 generates a pressure difference between the pressure on the primary side of the first flow resistance 121, the pressure between the first flow resistance 121 and the second flow resistance 122, and the pressure on the secondary side of the second flow resistance 122. Using these pressure differences, the fluid control unit 9 controls the pressure ratio of the pressing cuff 71 on the primary side of the first flow resistance 121 and the sensing cuff 73 between the first flow resistance 121 and the second flow resistance 122 to be constant.

[0082] The first flow resistance 121 connects the pressure cuff 71 to the sensing cuff 73. The first flow resistance 121 has, for example, a flow path cross-sectional area smaller than the flow path cross-sectional areas of the primary side and secondary side of the first flow resistance 121. The first flow resistance 121 is, for example, an orifice. The first flow resistance 121 narrows the flow path from the pressure cuff 71 to the sensing cuff 73, thereby reducing the flow rate of air supplied to the secondary side of the first flow resistance 121 to be less than the flow rate of air supplied to the pressure cuff 71.

[0083] The second flow resistance 122 connects the sensing cuff 73 to the atmosphere. The second flow resistance 122 has, for example, a flow path cross-sectional area smaller than the flow path cross-sectional area on the primary side of the second flow resistance 122. The second flow resistance 122 is, for example, an orifice.

[0084] The second flow resistance 122 narrows the flow path from the flow path between the first flow resistance 121 and the second flow resistance 122 to the atmosphere, thereby reducing the flow rate of air supplied to the secondary side (atmosphere) of the second flow resistance 122 below the flow rate of air supplied to the sensing cuff 73.

[0085] The flow resistance ratio between the first flow resistance 121 and the second flow resistance 122 is adjusted in accordance with the characteristics of the cuffs 71 and 73 of the blood pressure measurement device 1.

[0086] Next, a description will be given of the flow path plate unit 22. Regarding the flow path plate unit 22, an example of a configuration in which the pressure cuff 71 and the sensing cuff 73 are connected via a first flow resistance 121, and the sensing cuff 73 is connected to the atmosphere via a second flow resistance 122 will be described.

[0087] The flow path portion 22a of the flow path plate unit 22 includes, for example, a first flow path 22c and a second flow path 22d. The first flow path 22c fluidly connects the pump 14 and the on-off valve 16 to the pressure cuff 71. As a specific example, the first flow path 22c has a branch flow path 22c1 that branches off on the secondary side of the pump 14. The branch flow path 22c1 is connected to the on-off valve 16. The second flow path 22d is a flow path connected to the pressure sensor 17.

[0088] As a specific example, a first hole 131a, a second hole 131b, and a third hole 131c are formed in the first flow path plate 131. The holes 131a, 131b, and 131c penetrate the first flow path plate 131.

[0089] The first hole 131a communicates with the discharge port of the pump 14. The first hole 131a constitutes a part of the first flow path 22c. The first hole 131a is disposed, for example, on the central side of the first flow path plate 131. The second hole 131b is connected to the pressure sensor 17. The second hole 131b constitutes a part of the second flow path 22d. The second hole 131b is disposed, for example, on the outer edge side of the first flow path plate 131. The third hole 131c is connected to the on-off valve 16. The third hole 131c constitutes a part of the branch flow path 22c1. The third hole 131c is disposed, for example, on the outer edge side of the first flow path plate 131.

[0090] The second flow path plate 132 includes, for example, a flow path plate body 132a and a nozzle 132b. The flow path plate body 132a has a flat surface facing the first flow path plate 131. The flow path plate body 132a and the first flow path plate 131 have substantially the same outer shape on the facing surfaces. The flow path plate body 132a is, for example, a metal plate.

[0091] The nozzle 132b is provided on the surface of the flow path plate main body 132a opposite to the adhesive member 133. The nozzle 132b is connected to the cuff structure 7. The nozzle 132b is made of, for example, resin. The nozzle 132b is integrally formed with the flow path plate main body 132a by, for example, insert molding.

[0092] As a specific example, the nozzle 132b includes a first nozzle 132b1 and a second nozzle 132b2. The first nozzle 132b1 communicates with the first flow path 22c. The first nozzle 132b1 is connected to the pressure cuff 71. The second nozzle 132b2 communicates with the second flow path 22d. The second nozzle 132b2 is connected to the sensing cuff 73. The second nozzle 132b2 is connected to, for example, the flow path body 92.

[0093] According to the blood pressure measurement device 1 configured in this manner, the flow path plate unit 22 is formed by bonding the first flow path plate 131 and the second flow path plate 132 together with the adhesive member 133, and the notch 133a formed in the adhesive member 133 forms the flow path section 22a.

[0094] In this manner, the thickness of the flow path plate unit 22 can be reduced by forming the flow path by the notch 133a of the adhesive member 133 that bonds the first flow path plate 131 and the second flow path plate 132. That is, since the flow path portion 22a is formed by the notch 133a of the adhesive member 133, it is not necessary to form a recess for forming the flow path portion 22a extending in a direction along the mutually facing planes of the first flow path plate 131 and the second flow path plate 132. Therefore, for example, the flow path plate main body 132a of the first flow path plate 131 and the second flow path plate 132 can be formed from a thin metal plate, and the dimension in the thickness direction of the flow path plate unit 22 can be reduced, so that the blood pressure measurement device 1 can be made compact.

[0095] Furthermore, by using double-sided tape as the adhesive member 133, the notch 133a can be easily formed by punching. Also, by simply attaching the adhesive member 133 with the notch 133a formed therein to the first flow path plate 131 and the second flow path plate 132, the flow path plate unit 22 having the flow path portion 22a can be easily configured.

[0096] In addition, since the adhesive member 133 has a uniform thickness, it is easy to control the distance between the first flow path plate 131 and the second flow path plate 132, and therefore it is easy to control the flow paths.

[0097] As described above, according to this embodiment, the flow path is formed by the notch 133a of the adhesive member 133 that bonds the first flow path plate 131 and the second flow path plate 132, thereby making it possible to reduce the size of the flow path plate unit 22 and the blood pressure measurement device 1.

[0098] In the above-described embodiment, the flow path plate unit 22 is configured to connect the pressure cuff 71 to the sensing cuff 73, and the sensing cuff 73 is connected to the atmosphere, to the cuff structure 7, which is connected to the pump 14; however, the present invention is not limited to this. The flow path plate unit 22 can appropriately change the flow path section 22a by changing the shape of the notch 133a of the adhesive member 133 according to the configuration of the cuff structure 7, etc. A first modified example and a second modified example will be described with respect to this example.

[0099] The first modified example will be described with reference to Fig. 5 and Fig. 6. Fig. 5 is a block diagram showing a configuration of the first modified example of the blood pressure measurement device 1. Fig. 6 is a cross-sectional view showing the flow path plate unit 22, the pump 14, the pressure cuff 71, and the sensing cuff 73 of the blood pressure measurement device 1 according to the first modified example.

[0100] As shown in Figures 5 and 6, in the first modified example, the cuff structure 7 has a configuration in which a pressure cuff 71 is connected to a sensing cuff 73 via a flow path plate unit 22, and the sensing cuff 73 is connected to the atmosphere via the flow path plate unit 22.

[0101] The flow path portion 22a of the flow path plate unit 22 includes a first flow path 22c, a second flow path 22d, a third flow path 22e, and a fourth flow path 22f.

[0102] The third flow path 22e is a flow path that fluidly connects the pressure cuff 71 and the sensing cuff 73. In this modification, as an example, the third flow path 22e is connected to the pressure cuff 71 and the second flow path 22d, and connects the pressure cuff 71 and the sensing cuff 73 via the second flow path 22d. The fourth flow path 22f is connected to the sensing cuff 73 and the atmosphere.

[0103] As a specific example, on the surface of the second flow path plate 132 opposite to the adhesive member 133, a third nozzle 132b3 and a fourth nozzle 132b4 are further formed as the nozzles 132b connected to the cuff structure 7.

[0104] The third nozzle 132b3 constitutes a part of the third flow path 22e. The third nozzle 132b3 is connected to the pressure cuff 71. Furthermore, a first flow resistance 121 is provided in the third nozzle 132b3.

[0105] The fourth nozzle 132b4 constitutes a part of the fourth flow path 22f. The fourth nozzle 132b4 connects the fourth flow path 22f to the sensing cuff 73. The fourth nozzle 132b4 is connected to the sensing cuff 73. The fourth nozzle 132b4 is connected to, for example, the flow path body 92. A second flow resistance 122 is provided in the fourth nozzle 132b4.

[0106] The notch 133a of the adhesive member 133 further has an opening corresponding to the third flow passage 22e and an opening corresponding to the fourth flow passage 22f.

[0107] Next, a second modified example will be described with reference to Fig. 7 and Fig. 8. Fig. 7 is a block diagram showing the configuration of the second modified example of the blood pressure measurement device 1. Fig. 8 is a cross-sectional view showing the flow path plate unit 22, the pump 14, the pressure sensor 17, the pressure cuff 71, and the sensing cuff 73 of the blood pressure measurement device 1 according to the second modified example.

[0108] As shown in Figures 7 and 8, in addition to the configuration of the first modified example, the cuff structure 7 has a configuration in which the pressure cuff 71 is connected to the sensing cuff 73 via a valve 123, which is an example of a fluid control unit 9, arranged in parallel with the first flow resistance 121.

[0109] The valve 123 opens when the pressure on the primary side is lower than the pressure on the secondary side. Specifically, the valve 123 closes when the pressure of the pressure cuff 71 is equal to or higher than the pressure on the sensing cuff 73 side, and opens when the pressure of the pressure cuff 71 becomes lower than the pressure of the sensing cuff 73. For example, such a valve 123 is normally closed when air is supplied to the pressure cuff 71 and the sensing cuff 73 during blood pressure measurement. Also, the valve 123 opens when the pressure of the pressure cuff 71 becomes lower than the pressure of the sensing cuff 73. The valve 123 is, for example, a check valve.

[0110] For example, the cracking pressure of the valve 123 is set to a pressure suitable for venting the pressure cuff 71 and the sensing cuff 73. As a specific example, the cracking pressure of the valve 123 is set to 0 mmHg so that the valve 123 opens when the pressure of the pressure cuff 71 falls below the pressure of the sensing cuff 73.

[0111] Flow path portion 22a further includes a fifth flow path 22g. Fifth flow path 22g is provided with valve 123 and is a flow path that connects pressure cuff 71 and sensing cuff 73. In this modification, fifth flow path 22g is connected to pressure cuff 71. In addition, fifth flow path 22g is connected to second flow path 22d and third flow path 22e.

[0112] As a specific example, a fifth nozzle 132b5 is further formed as the nozzle 132b on the surface of the second flow path plate 132 opposite to the adhesive member 133. The fifth nozzle 132b5 constitutes a part of the fifth flow path 22g. The fifth nozzle 132b5 is connected to the pressing cuff 71. For example, a valve 123 is provided in the fifth nozzle 132b5.

[0113] The notch 133a of the adhesive member 133 further has a notch corresponding to the fifth flow path 22g. [Second embodiment] Next, a blood pressure measuring device 1A according to a second embodiment will be described with reference to Fig. 9 and Fig. 10. The blood pressure measuring device 1A according to the second embodiment differs from the blood pressure measuring device 1 of the first embodiment in that the adhesive member 133 includes a third flow path plate 135. In the second embodiment, components having the same functions as those in the first embodiment are denoted by the same reference numerals, and descriptions thereof will be omitted.

[0114] Fig. 9 is a block diagram showing the configuration of a blood pressure measurement device 1A according to the second embodiment. Fig. 10 is a cross-sectional view showing the configurations of a pump 14, a pressure sensor 17, a flow path plate unit 22A, a pressure cuff 71, and a sensing cuff 73 of the blood pressure measurement device 1A.

[0115] 9 and 10, a blood pressure measuring device 1A includes, for example, a device main body 3A, a belt 4, a curler 5, a cuff structure 7, and a fluid control unit 9. Note that the belt 4, the curler 5, the cuff structure 7, and the fluid control unit 9 are similar to those of the first embodiment shown in FIG.

[0116] The device main body 3A includes, for example, a case 11, a display unit 12, an operation unit 13, a pump 14, an on-off valve 16, a pressure sensor 17, a power source 18, a communication unit 19, a memory 20, a CPU 21, and a flow path plate unit 22A. The device main body 3A differs from the first embodiment in terms of the flow path plate unit 22A, but the case 11, the display unit 12, the operation unit 13, the pump 14, the on-off valve 16, the pressure sensor 17, the power source 18, the communication unit 19, the memory, and the CPU 21 are the same as those in the first embodiment, as shown in Figs. 1 and 2.

[0117] In this embodiment, the cuff structure 7 has, for example, a fluid control unit 9 provided in the flow path plate unit 22A. The sensing cuff 73 of this embodiment is connected to the pump 14 in parallel with the pressure cuff 71 via the flow path plate unit 22A. The sensing cuff 73 is also connected to the atmosphere via the flow path plate unit 22A.

[0118] The flow path plate unit 22A includes a first flow path plate 131, a second flow path plate 132, and an adhesive member 133A. In this embodiment, the second flow path plate 132 includes, for example, a flow path plate body 132a, a first nozzle 132b1, a second nozzle 132b2, and a third nozzle 132b3.

[0119] The adhesive member 133A bonds the first flow path plate 131 and the second flow path plate 132. The adhesive member 133 has a notch 133a that forms the flow path portion 22a together with the first flow path plate 131 and the second flow path plate 132 when the first flow path plate 131 and the second flow path plate 132 are bonded together.

[0120] The adhesive member 133A includes a third flow path plate 135, a first adhesive member 136 provided on the surface of the third flow path plate 135 facing the first flow path plate 131, and a second adhesive member 137 provided on the surface of the third flow path plate 135 facing the second flow path plate 132.

[0121] The third flow path plate 135 has a flow path 135a. The flow path 135a includes a fluid control unit 9 through which air flows in the thickness direction of the third flow path plate 135. The flow path 135a is formed, for example, in the form of a plurality of holes penetrating the third flow path plate 135 in the thickness direction. Some of the plurality of holes constitute one or a plurality of orifices as an example of the fluid control unit 9.

[0122] In this embodiment, an orifice serving as the first flow resistance 121 and an orifice serving as the second flow resistance 122 are formed in the third flow plate 135. The third flow plate 135 is an orifice plate. The first flow resistance 121 and the second flow resistance 122 form a part of the cutout 133a.

[0123] The first adhesive member 136 has a notch 133a1 which is an opening or a cutout for forming the flow path 22a1 together with the first flow path plate 131 and the third flow path plate 135 when the first adhesive member 136 is adhered to the first flow path plate 131. The notch 133a1 is a part of the notch 133a. The first adhesive member 136 is formed of, for example, a plurality of double-sided tapes.

[0124] The second adhesive member 137 has a notch 133a2 which is an opening or a cutout for forming the flow path 22a2 together with the second flow path plate 132 and the third flow path plate 135 when the second adhesive member 137 is adhered to the second flow path plate 132. The notch 133a2 is a part of the notch 133a.

[0125] The flow path section 22a includes a first flow path 22c, a second flow path 22d, a fourth flow path 22f, and a sixth flow path 22h. The sixth flow path 22h is connected to the first flow path 22c and the second flow path 22d. In this embodiment, for example, the first flow resistance 121 constitutes a part of the sixth flow path 22h. In this embodiment, for example, the second flow resistance 122 constitutes a part of the third flow path 22e.

[0126] According to the blood pressure measurement device 1A configured in this manner, the flow path plate unit 22A can be made compact because there is no need to form recesses for forming the flow path portion 22a in the first flow path plate 131 and the second flow path plate 132. As a result, the blood pressure measurement device 1 can be made compact.

[0127] Furthermore, by bonding the first flow path plate 131 and the second flow path plate 132 together with the adhesive member 133A, the notch 133a formed in the adhesive member 133A constitutes the flow path portion 22a. The adhesive member 133A has a third flow path plate 135 having a flow path. Therefore, by forming a part of the flow path by the third flow path plate 135, the degree of freedom of the flow path of the flow path plate unit 22A can be improved. Furthermore, since the third flow path plate 135 does not have a shape that includes a recess that constitutes the flow path, the flow path plate unit 22A can be made smaller. In other words, the flow path plate unit 22A can be made smaller while improving the degree of freedom of the flow path.

[0128] Furthermore, by forming flow resistances 121 and 122, which are orifices, in the flow paths of the third flow path plate 135, a flow path plate unit 22A having an orifice therein can be obtained. Furthermore, the orifice is formed by a part of the third flow path plate. This improves the accuracy of the orifice shape.

[0129] Furthermore, by forming the flow paths 135a in the third flow path plate 135 as one or more linear holes penetrating the third flow path plate 135 in the thickness direction, it is possible to form a flow path in the third flow path plate 135 even if the thickness of the third flow path plate 135 is reduced. As a result, the flow path plate unit 22A and the blood pressure measurement device 1A can be made smaller in size.

[0130] In the above-described second embodiment, the third flow path plate 135 has been described as having the flow resistances 121 and 122, which are orifices formed in holes penetrating the third flow path plate 135 in the thickness direction, as an example of a fluid control section, but is not limited thereto. In another example, the flow path 135a of the third flow path plate 135 may be configured to include a fluid control section through which air passes in the surface direction of the third flow path plate 135, as shown in FIG. 11. The fluid control section may be configured to include, for example, flow resistances 121 and 122.

[0131] In this modified example, the first adhesive member 136 and the second adhesive member 137 may be configured to have a hole penetrating in the thickness direction that connects the flow path 135a in the third flow path plate 135 and a hole formed in the first flow path plate 131, or may be shaped to have an opening that forms a flow path extending in the surface direction.

[0132] The present invention is not limited to the above-mentioned embodiment. For example, in the examples of the blood pressure measuring device of each of the above-mentioned embodiments, the adhesive members 133, 136, and 137 are configured to use a single double-sided tape with the notch 133a as an example, but are not limited to this. In another example, the adhesive members 133, 136, and 137 may be formed by combining a plurality of double-sided tapes, for example, to provide the notch 133a. In addition, the adhesive members 133, 136, and 137 may be adhesive or hot melt as another example.

[0133] In the above example, in the blood pressure measurement device 1 according to the first embodiment, the first flow resistance 121 and the second flow resistance 122 are configured separately from the second flow path plate 132. However, the present invention is not limited to this example. In another example, the first flow resistance 121 and the second flow resistance 122 may be configured by narrowing a part of the flow path of the flow path portion 22a. As an example, the first flow resistance 121 and the second flow resistance 122 may be configured by reducing the flow path cross-sectional area of ​​the nozzle 132b or the flow path cross-sectional area formed by the notch 133a.

[0134] In the above example, the first flow resistance 121 and the second flow resistance 122 are each configured with one flow resistance, but the present invention is not limited to this. In another example, as shown in Fig. 11, at least one of the first flow resistance 121 and the second flow resistance 122 may be provided in a plurality of units. In the example shown in Fig. 11, an example in which two first flow resistances 121 are provided is shown.

[0135] The resistance of the first flow resistor 121 and the second flow resistor 122 may be adjusted by adjusting the width in the fluid flow direction. As an example, a configuration is shown in which the width of one first flow resistor 121 in the air flow direction shown in Fig. 11 is longer than the width of the other first flow resistor 121 in the air flow direction. The resistance of the first flow resistor 121 and the second flow resistor may be adjusted by adjusting the flow path cross-sectional area.

[0136] In the above example, the flow path plate units 22, 22A are connected to the cuff structure 7 by the nozzles 132b, but the present invention is not limited to this example. In another example, the second flow path plate 132 may have a hole that constitutes a part of the flow path portion 22a, and this hole may be connected to the pressure cuff 71 or the sensing cuff 73 of the cuff structure 7.

[0137] That is, as long as the flow paths are formed by an adhesive member that bonds the first flow path plate and the second flow path plate, the layout and configuration of the flow paths and flow resistance can be set appropriately.

[0138] In the first and second embodiments, the second flow path plate 132 has a flow path plate body 132a and a nozzle 132b, and the flow path plate body 132a is formed of a metal material, for example, a metal plate, and the nozzle 132b is formed of a resin. However, the present invention is not limited to this. In another example, the nozzle 132b may be formed of a metal material. Note that, in the second flow path plate 132, the flow path plate body 132a is formed of a metal material, but this is an example of the second flow path plate 132 being formed of a metal material.

[0139] In the first and second embodiments, the flow path plate main body 132a of the first flow path plate 131 and the second flow path plate 132 is formed of a metal material as an example, but is not limited thereto. At least one of the flow path plate main body 132a of the first flow path plate 131 and the second flow path plate 132 may be formed of a metal material. Alternatively, at least one of the first flow path plate 131 and the second flow path plate 132 may be formed of a metal material. This example includes a configuration in which the first flow path plate 131 is formed of a metal material. Alternatively, this example includes a configuration in which the second flow path plate 132, i.e., the flow path plate main body 132a and the nozzle 132b are formed of a metal material.

[0140] That is, the present invention is not limited to the above-mentioned embodiment, and various modifications can be made in the implementation stage without departing from the gist of the invention. Moreover, the embodiments may be implemented in combination as appropriate as possible, and in that case, the combined effects can be obtained. Furthermore, the above-mentioned embodiment includes inventions at various stages, and various inventions can be extracted by appropriate combinations of the disclosed constituent elements. [Explanation of symbols]

[0141] 1. Blood pressure measuring device 1A…Blood pressure measuring device 3. Device body 4. Belt 5. Carla 7…Cuff structure 9...Fluid control section 11. Case 12...Display section 13...Operation unit 14…Pump 16...Shut-off valve 17...Pressure sensor 18...Power supply 19…Communications Department 20…Memory 21...CPU 22...Flow path plate unit 22A...Flow path plate unit 22a...flow path section 22a1...flow path 22a2...flow path 22c…First flow path 22c1...Branch channel 22d…Second flow path 22e…Third flow path 22f…4th flow path 22g…5th flow path 22h…6th channel 31…Outer case 31a…Rug 31b…Spring bar 32…Windshield 35…Case back 41...Button 43...Touch panel 61…1st Belt 62…Second belt 71...Compression cuff 72...Backboard 73…Sensing cuff 81...Air bag 91...Air bag 121...1st flow resistance 122…Second flow resistance 123...Valve 131...First flow path plate 131a…1st hole 131b…Second hole 131c…3rd hole 132...Second flow path plate 132a...flow path plate body 132b...Nozzle 132b1…Nozzle No. 1 132b2…Second nozzle 132b3…Third nozzle 132b4…4th nozzle 132b5…5th nozzle 133...Adhesive material 133A…Adhesive material 133a…Notch 133a1…Notch 133a2…Notch 135...Third flow path plate 136...first adhesive member 137...second adhesive member

Claims

1. A flow path plate unit connected to a pressure cuff and a sensing cuff pressed by the pressure cuff, A first flow path plate having at least one surface formed in a flat shape; a second flow path plate having a flat surface opposite to the flat surface of the first flow path plate; A first nozzle provided on the second flow path plate and connected to the pressure cuff; a second nozzle provided on the second flow path plate and connected to the sensing cuff; A third nozzle provided on the second flow path plate and connected to the pressure cuff; an adhesive member that has a notch that forms a flow path that communicates with the first nozzle and a flow path that fluidly connects the third nozzle and the second nozzle, and that adheres the first flow path plate and the second flow path plate; A flow path plate unit comprising:

2. The flow path plate unit according to claim 1 , wherein the adhesive member is a double-sided tape.

3. The flow path plate unit according to claim 1 , wherein at least one of the first flow path plate and the second flow path plate is made of a metal material.

4. A flow path plate unit as described in claim 1, comprising a fluid control unit provided in the third nozzle.

5. a flow path plate unit including a first flow path plate having at least one surface formed in a planar shape, a second flow path plate having a surface opposite to the planar surface of the first flow path plate formed in a planar shape, a first nozzle provided on the second flow path plate, a second nozzle provided on the second flow path plate, a third nozzle provided on the second flow path plate, and cutouts that form a flow path communicating with the first nozzle and a flow path fluidly connecting the third nozzle and the second nozzle, and an adhesive member that adheres the first flow path plate and the second flow path plate; A pump connected to the flow path plate unit; A pressure sensor connected to the flow path plate unit; a pressure cuff connected to the first nozzle and the third nozzle of the flow path plate unit and fluidly connected to the pump and the pressure sensor via the flow path plate unit; a sensing cuff connected to the second nozzle of the flow path plate unit, fluidly connected to the pressure sensor via the flow path plate unit, and pressed against the pressure cuff; A blood pressure measuring device comprising:

6. The blood pressure measurement device according to claim 5 , wherein the adhesive member is a double-sided tape.

7. A blood pressure measuring device as described in claim 5, comprising a fluid control unit provided in the third nozzle.

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