Cuff structure and blood pressure measuring device

Abstract

The present invention provides a cuff structure and a blood pressure measuring device capable of improving the measurement accuracy of blood pressure. The cuff structure (6) comprises a sensing cuff (73), a pressing cuff (71) and a wall portion (76). The sensing cuff (73) is configured to be long in one direction and contacts the area where the artery (210) of the wrist (200) is located. The pressing cuff (71) is configured to be long in one direction and is provided on the side opposite to the surface of the sensing cuff (73) on the wrist (200) side and presses the sensing cuff (73) to the wrist by expanding. The wall portion (76) is provided along at least one of the edges of the sensing cuff (73) along the longitudinal direction, and the top surface of the wall portion (76) on the wrist (200) side contacts the wrist.

Description

Technical Field

[0001] The present invention relates to a cuff structure used in a blood pressure measurement device for measuring blood pressure, and the blood pressure measurement device. Background Art

[0002] In recent years, blood pressure measurement devices have become increasingly popular not only in medical facilities but also in homes as a way to check a person's health. These devices, for example, inflate and deflate a cuff wrapped around a person's upper arm or wrist. A pressure sensor detects the pressure in the cuff, thereby detecting arterial wall vibrations to measure blood pressure.

[0003] As such blood pressure measurement devices, a so-called integrated blood pressure measurement device is known, in which a cuff and a device body that supplies fluid to the cuff are integrally formed. Furthermore, integrated blood pressure measurement devices may also be wearable devices worn on the wrist (for example, see Patent Document 1).

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2019-118418 Summary of the Invention

[0007] Problems to be solved by the invention

[0008] The wrist contains tendons, bones, and muscles. Depending on the shape of these tendons, bones, and muscles, the area where the wrist arteries are located will have unevenness. Furthermore, because the shape of tendons, bones, and muscles varies from user to user, the unevenness of the area where the wrist sensor cuff contacts will vary from user to user.

[0009] The sensing cuff is required to have air uniformly present in the sensing cuff when measuring blood pressure.

[0010] The above-mentioned blood pressure measurement device is required to improve the blood pressure measurement accuracy.

[0011] Therefore, an object of the present invention is to provide a cuff structure and a blood pressure measurement device that can improve the accuracy of blood pressure detection.

[0012] Technical Solution

[0013] According to one embodiment, a cuff structure is provided, comprising: a sensing cuff configured to be elongated in one direction and to contact an area of ​​the wrist where an artery is located; a pressing cuff configured to be elongated in one direction, to be provided on a side opposite to a surface of the sensing cuff on the wrist side and to press the sensing cuff to the wrist by expanding; and a wall portion provided along at least one of the edges of the sensing cuff along the longitudinal direction, the top surface of the wall portion being in contact with the wrist.

[0014] The sensing cuff and the compression cuff are cuffs that are inflated by fluid being supplied thereto, and include a bag-like structure such as an air bag.

[0015] According to this solution, the blood pressure measurement device is worn on the wrist and the compression cuff is inflated, causing the wall to press against the wrist. This pressure from the wall reduces the unevenness of the wrist's arterial region. Here, wrist unevenness refers to the unevenness produced by parts of the wrist, such as tendons, muscles, and bones. Because the wrist's unevenness is reduced, the pressure of the sensing cuff against the wrist, achieved by the expansion of the compression cuff, allows the air-supplied sensing cuff to adhere tightly to the wrist's arterial region.

[0016] Furthermore, since the wrist's unevenness is reduced, even when the air-supplied sensing cuff is pressed against the wrist by the inflated compression cuff, collapse is prevented. Here, collapse refers to contact between the wrist side of the sensing cuff's inner surface and the compression cuff's side. Preventing collapse of the sensing cuff ensures a uniform distribution of fluid within the cuff.

[0017] Furthermore, the wall portion presses the wrist, causing the wrist to follow the shape of the end surface of the wall portion. As a result, the sensing cuff can be properly fitted to the wrist.

[0018] In this way, the sensing cuff can be brought into close contact with the region where the wrist artery is located, and the fluid can be uniformly distributed within the sensing cuff, thereby improving the accuracy of blood pressure measurement.

[0019] Furthermore, by configuring the wall portion so that it faces the tendon between the radial and ulnar arteries of the wrist when the blood pressure measurement device is worn on the wrist, the wall portion can be pressed against the tendon. By using the wall portion to press against the tendon, the sensing cuff can be tightly attached to the wrist over a wide area encompassing both the radial and ulnar arteries.

[0020] Furthermore, when a pair of walls are provided along the longitudinal edges of the sensing cuff, the pair of walls presses against the wrist. As the wrist is pressed by the pair of walls, the portion of the wrist between the pair of walls conforms to the end surfaces of the walls. This increases the area of ​​the wrist that conforms to the end surfaces of the walls, allowing the sensing cuff to fit more snugly against the wrist.

[0021] In the cuff structure according to the above-mentioned aspect, there is provided a cuff structure including: a back plate provided between the pressing cuff and the sensing cuff; and the wall portion provided on the back plate.

[0022] According to this aspect, since the wall portion is supported by the back plate, the wall portion can be pressed toward the wrist in a stable manner.

[0023] Furthermore, the number of components of the cuff structure can be prevented from increasing, thereby improving the efficiency of the blood pressure measurement device assembly operation.

[0024] In the cuff structure according to the above-mentioned aspect, there is provided a cuff structure wherein a plurality of grooves perpendicular to the longitudinal direction are formed on the distal end surface.

[0025] According to this aspect, the wall portion can be easily deformed in the circumferential direction of the wrist, thereby preventing the difficulty in attaching the blood pressure measurement device to the wrist.

[0026] In the cuff structure according to the above-mentioned aspect, there is provided a cuff structure wherein the wall portion has a height that protrudes beyond the sensing cuff when the sensing cuff is inflated and allows the sensing cuff to be in close contact with the wrist.

[0027] According to this embodiment, when the blood pressure measurement device is worn on the wrist and air is supplied to the sensing cuff to inflate it, the wall of the cuff presses into the area where the wrist artery is located, and the sensing cuff comes into contact with the wrist. This allows the sensing cuff to adhere appropriately to the area where the wrist artery is located.

[0028] According to one embodiment, a blood pressure measurement device is provided, comprising: a device body; a collar provided on the device body; a cuff structure provided on the collar and comprising a sensing cuff, a pressing cuff, and a wall portion, wherein the sensing cuff is configured to be long in one direction and contacts an area of ​​the wrist where an artery is located; the pressing cuff is configured to be long in one direction and is provided on the side opposite to the wrist side surface of the sensing cuff and presses the sensing cuff to the wrist by expanding; the wall portion is provided along at least one of the edges of the sensing cuff along the longitudinal direction, and the top surface of the wall portion contacts the wrist.

[0029] According to this solution, the blood pressure measurement device is worn on the wrist and the compression cuff is inflated, causing the wall to press against the wrist. This pressure from the wall reduces the unevenness of the wrist's arterial region. Here, wrist unevenness refers to the unevenness produced by parts of the wrist, such as tendons, muscles, and bones. Because the wrist's unevenness is reduced, the pressure of the sensing cuff against the wrist, achieved by the expansion of the compression cuff, allows the air-supplied sensing cuff to adhere tightly to the wrist's arterial region.

[0030] Furthermore, since the wrist's unevenness is reduced, even when the air-supplied sensing cuff is pressed against the wrist by the inflated compression cuff, collapse is prevented. Here, collapse refers to contact between the wrist side of the sensing cuff's inner surface and the compression cuff's side. Preventing collapse of the sensing cuff ensures a uniform distribution of fluid within the cuff.

[0031] Furthermore, the wall portion presses the wrist, causing the wrist to follow the shape of the end surface of the wall portion. As a result, the sensing cuff can be properly fitted to the wrist.

[0032] In this way, the sensing cuff can be brought into close contact with the region where the wrist artery is located, and the fluid can be uniformly distributed within the sensing cuff, thereby improving the accuracy of blood pressure measurement.

[0033] Furthermore, by configuring the wall portion so that it faces the tendon between the radial and ulnar arteries of the wrist when the blood pressure measurement device is worn on the wrist, the wall portion can be pressed against the tendon. By using the wall portion to press against the tendon, the sensing cuff can be tightly attached to the wrist over a wide area encompassing both the radial and ulnar arteries.

[0034] Furthermore, when a pair of walls are provided along the longitudinal edges of the sensing cuff, the pair of walls presses against the wrist. The wrist is pressed by the pair of walls, and the portion of the wrist between the pair of walls conforms to the end surfaces of the walls. This increases the area of ​​the wrist conforming to the end surfaces of the walls, allowing the sensing cuff to fit more snugly against the wrist.

[0035] Effects of the Invention

[0036] The present invention can provide a cuff structure and a blood pressure measuring device capable of improving the measurement accuracy of blood pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a perspective view showing the structure of a blood pressure measurement device according to one embodiment of the present invention.

[0038] Figure 2 1 is an explanatory diagram showing a state where the blood pressure measurement device is worn on a wrist.

[0039] Figure 3 It is a plan view showing the configuration of the cuff structure of the blood pressure measurement device.

[0040] Figure 4 This is a perspective view showing a portion of the collar and the cuff structure of the blood pressure measurement device.

[0041] Figure 5 It is a cross-sectional view schematically showing a state where the blood pressure measurement device is worn on a wrist.

[0042] Figure 6 It is an explanatory diagram showing a state where the blood pressure measurement device is worn on a wrist and the pressure acting on the wrist.

[0043] Figure 7 It is a cross-sectional view showing the configuration of a cuff structure according to a modified example of the present invention.

[0044] Figure 8 It is a cross-sectional view showing the configuration of a cuff structure according to a modified example of the present invention.

[0045] Figure 9 It is a cross-sectional view showing the configuration of a cuff structure according to a modified example of the present invention.

[0046] Figure 10 It is a cross-sectional view showing the configuration of a cuff structure according to a modified example of the present invention.

[0047] Figure 11 It is a cross-sectional view showing the configuration of a cuff structure according to a modified example of the present invention.

[0048] Figure 12 It is a side view showing the structure of a back plate and a wall portion according to a modified example of the present invention.

[0049] Figure 13 It is a side view showing the structure of a back plate and a wall portion according to a modified example of the present invention.

[0050] Figure 14 It is a side view showing the structure of a back plate and a wall portion according to a modified example of the present invention.

[0051] Figure 15 This is an explanatory diagram showing a state where a blood pressure measurement device according to a modified example of the present invention is worn on a wrist.

[0052] Figure 16 It is a plan view showing the configuration of the cuff structure of the blood pressure measurement device. DETAILED DESCRIPTION

[0053] Below, use Figures 1 to 6 An example of a blood pressure measurement device 1 according to an embodiment of the present invention is described below.

[0054] Figure 1 It is a perspective view showing the structure of the blood pressure measurement device 1 . Figure 2 This is an explanatory diagram showing a state where the blood pressure measurement device 1 is worn on a wrist 200. Here, wearing the blood pressure measurement device 1 on the wrist 200 means attaching the blood pressure measurement device 1 to the wrist 200 and tightening a belt 4, which is an example of a fastener, to thereby secure the blood pressure measurement device 1 to the wrist 200. Figure 3 1 is a plan view showing the structure of the cuff structure 6 of the blood pressure measurement device 1. Figure 3 , a state in which a portion of the pressing cuff 71 of the cuff structure 6 is cut out is shown.

[0055] Figure 4 It is a perspective view showing a portion of the collar 5 and the cuff structure 6 of the blood pressure measurement device 1 . Figure 5 It is a cross-sectional view showing a state where the blood pressure measurement device 1 is worn on the wrist 200 . Figure 6 1 is an explanatory diagram schematically showing a state where the blood pressure measurement device 1 is worn on a wrist 200 and pressure acting on the wrist 200 .

[0056] like Figure 1 and Figure 2 As shown, the blood pressure measurement device 1 includes a device body 3 , a strap 4 for fixing the device body 3 to the wrist 200 , a collar 5 disposed between the strap 4 and the wrist 200 , and a cuff structure 6 .

[0057] The device body 3 includes, for example, a housing 11, a display unit 12, and an operation unit 13. The device body 3 also includes, within the housing 11, a pump for inflating the cuff structure 6, a flow path fluidically connecting the pump and the cuff structure 6, and a control board.

[0058] The housing 11 includes an outer shell 31 and a damper 32 that covers an opening of the outer shell 31 on the side opposite to the wrist 200 side.

[0059] The outer shell 31 is formed in a cylindrical shape and includes a pair of ears 31 a provided at symmetrical positions in the circumferential direction of the outer peripheral surface and a spring rod 31 b provided between the two pairs of ears 31 a.

[0060] The windshield 32 is, for example, a circular glass plate.

[0061] The display unit 12 is located directly below the windshield 32. The display unit 12 is electrically connected to the control board. The display unit 12 is, for example, a liquid crystal display or an organic electroluminescent display. The display unit 12 displays various information, including the date and time, blood pressure values ​​such as the maximum and minimum blood pressure, and measurement results such as heart rate.

[0062] The operation unit 13 is configured to be able to input commands from the user. For example, the operation unit 13 includes a plurality of buttons 41 provided on the housing 11 and a sensor for detecting operation of the buttons 41. For example, three buttons 41 are provided.

[0063] The strap 4 is an example of a fastener that secures the blood pressure measurement device 1 while it is worn on the wrist 200. The strap 4 includes a first strap 61 provided on one side of the pair of ears 31a and the spring rod 31b, and a second strap 62 provided on the other side of the pair of ears 31a and the spring rod 31b. The strap 4 is wrapped around the wrist 200 via a collar 5.

[0064] The first belt 61 is called a mother belt and is in a belt shape that can be connected to the second belt 62. The first belt 61 includes a belt portion 61a and a buckle 61b. The belt portion 61a is in a belt shape and is formed of an elastically deformable resin material.

[0065] One end of the belt portion 61a is supported by one spring rod 31b. A buckle 61b is provided at the other end of the belt portion 61a. The buckle 61b includes a rectangular frame body 61e and a buckle tongue 61f rotatably attached to the frame body 61e.

[0066] The second strap 62, known as a hook strap, is a strip wide enough to fit within the frame 61e. It is made of an elastically deformable resin material. It also has a plurality of small holes 62a for the buckle tongues 61f to fit through. One end of the second strap 62 is supported by the spring rod 31b.

[0067] In the thus constructed strap 4, the second strap 62 is inserted into the frame 61e, and the buckle 61f is inserted into the small hole 62a. This integrally connects the first strap 61 and the second strap 62, and together with the contour housing 31, forms an annular shape that conforms to the circumference of the wrist 200. The strap 4 forms an annular shape that conforms to the circumference of the wrist 200, thereby pressing the collar 5 and causing it to elastically deform so as to conform to the circumference of the wrist 200 of the wearer of the blood pressure measurement device 1.

[0068] like Figure 1 and Figure 2 As shown, the collar 5 is formed in a band-like shape that curves along the circumference of the wrist 200. The collar 5 is separated into one end 5a and another end 5b. The one end 5a is located on the palm side of the wrist 200 when the blood pressure measurement device 1 is worn on the wrist 200. The other end 5b is located on the back side of the wrist 200 when the blood pressure measurement device 1 is worn on the wrist 200. The outer surface of the collar 5, for example, on the side of the other end 5b, is fixed to the device body. The collar 5 is formed, for example, from a resin material.

[0069] The collar 5 is formed so that the length from the device body 3 to the other end 5b is shorter than the length from the device body 3 to the one end 5a. The short side of the collar 5 from the device body 3 to the other end 5b is positioned on the back of the wrist 200. The long side of the collar 5 from the device body 3 to the one end 5a extends from the back of the wrist 200 through one side to the palm of the wrist 200.

[0070] Such a collar 5 is fixed to the profile housing 31 in an orientation in which one end 5 a and the other end 5 b face the second band 61 of the band 4 .

[0071] Furthermore, the collar 5 has a hardness that allows for flexibility and shape retention. Flexibility here refers to radial deformation of the collar 5 when an external force from the strap 4 is applied to the collar 5. For example, flexibility means that when the strap 4 presses against the collar 5, the collar 5 deforms in a side-view shape that approximates, follows, or mimics the shape of the wrist 200. Furthermore, shape retention means that the collar 5 maintains its pre-formed shape when no external force is applied. For example, in this embodiment, shape retention means that the collar 5 maintains a curved shape that curves along the circumference of the wrist 200.

[0072] The cuff structure 6 is disposed on the inner circumferential surface of the collar 5. The collar 5 holds a portion of the cuff structure 6 along the shape of the inner circumferential surface 5c of the collar 5. For example, the collar 5 holds the cuff structure 6 by fixing the cuff structure 6 with a bonding layer provided between the collar 5 and the cuff structure 6. The bonding layer may be, for example, an adhesive or double-sided tape.

[0073] like Figures 1 to 3 As shown, the cuff structure 6 includes a pressing cuff 71, a back plate 72, a sensing cuff 73, and a wall portion 76. The cuff structure 6 also includes a bonding layer 75 that bonds the components together and the collar 5 to the pressing cuff 71.

[0074] The cuff structure 6 is arranged on the collar 5 in a stacked manner with a pressing cuff 71, a back plate 72 and a sensing cuff 73. Figure 1 and Figure 2 As shown in the figure, as a specific example, in the cuff structure 6, a pressing cuff 71 is fixed to the inner circumferential surface 5c of the collar 5. Furthermore, a back plate 72 is fixed to the inner circumferential surface of the pressing cuff 71 on the palm side of the wrist 200, extending from the inner circumferential surface of the pressing cuff 71 toward the wrist 200. Furthermore, a sensing cuff 73 is fixed to the inner circumferential surface of the back plate 72 on the palm side. Each component of the cuff structure 6 is fixed to adjacent components in the stacking direction by a bonding layer.

[0075] The compression cuff 71 is connected to the pump fluid via a flow path. The compression cuff 71 is configured as a band extending in one direction. A portion of the compression cuff 71 is secured to the inner circumferential surface 5c of the collar 5 via a bonding layer. Furthermore, the compression cuff 71 has a length sufficient to press the sensing cuff 73 toward the wrist 200 and the back of the wrist 200 when the blood pressure measurement device 1 is worn. For example, the compression cuff 71 has a length extending from one end 5a to the other end 5b of the inner circumferential surface 5c of the collar 5.

[0076] like Figure 3 and Figure 4As shown, the compression cuff 71 includes an air bag 81 and a connection portion 84 provided on the air bag 81. It should be noted that, in the above example, a configuration using a single air bag 81 is used as an example, but the present invention is not limited to this. In other examples, a configuration may be employed in which multiple air bags 81 are provided and stacked. In a configuration using multiple air bags 81, the stacked air bags 81 are fluidically connected, for example, in the stacking direction.

[0077] Such a compression cuff 71 is formed by integrally welding a plurality of sheet members 86. The connection portion 84 is connected to the flow path portion of the device body 3. The connection between the connection portion 84 and the flow path portion connects the compression cuff 71 to the pump fluid.

[0078] Here, the air bag 81 refers to a bag-like structure. In this embodiment, the blood pressure measurement device 1 uses air through a pump, so an air bag is used for description. However, when a fluid other than air is used, the bag-like structure can be a fluid bag that can be expanded by the fluid.

[0079] The air bag 81 is formed into a rectangular bag shape that is long in one direction. In addition, the width of the short dimension direction of the air bag 81 is set to be the same as the width of the short dimension direction of the collar 5. The air bag 81 is formed by combining two sheet members 86, such as in Figure 3 As shown in the figure, the welded portion 81a is welded by heat into a rectangular frame shape that is long in one direction.

[0080] The connection portion 84 is, for example, a pipe joint. It is connected to the flow path portion of the device body 3. The connection portion 84 is provided on the portion of the air bag 81 that faces the device body 3. The tip of the connection portion 84 protrudes from the sheet member 86 that faces the collar 5, of the two sheet members 86 that constitute the air bag 81. The connection portion 84 is connected to the flow path portion.

[0081] like Figure 3 As shown, the back plate 72 is formed into a plate-like shape that is long in one direction. The back plate 72 is adhered to the outer surface of the sheet material on the wrist 200 side of the cuff 71 via an adhesive layer. The back plate 72 has a length that faces the area where the artery 210 and tendon 220 are located when the blood pressure measurement device 1 is worn on the wrist 200.

[0082] The back plate 72 has shape-conforming properties. Here, shape-conforming properties refer to the ability of the back plate 72 to deform to conform to the shape of the contacted portion of the wrist 200 on which it is placed. The contacted portion of the wrist 200 refers to the area of ​​the wrist 200 that the back plate 72 faces. Contact in this context includes both direct contact and indirect contact via the sensing cuff 73.

[0083] In addition, if Figure 3As shown, the back plate 72 has a plurality of grooves 72a extending in a direction perpendicular to the longitudinal direction on both main surfaces of the back plate 72. The plurality of grooves 72a are provided on each of the two main surfaces of the back plate 72. The plurality of grooves 72a provided on the two main surfaces are opposed to each other in the thickness direction of the back plate 72. Furthermore, the plurality of grooves 72a are arranged at equal intervals in the longitudinal direction of the back plate 72.

[0084] The portion of the back plate 72 having multiple grooves 72a is thinner than the portion without grooves 72a. This makes the portion having multiple grooves 72a more easily deformable. Consequently, the back plate 72 has shape-conforming properties, deforming to conform to the shape of the wrist 200 and extending in the circumferential direction of the wrist 200. The back plate 72 is formed to a length that covers the palm side of the wrist 200. While conforming to the shape of the wrist 200, the back plate 72 transmits the pressing force from the pressing cuff 71 to the main surface of the sensing cuff 73 on the back plate 72 side.

[0085] The sensing cuff 73 is connected to the pump fluid via the flow path portion of the device body 3. The sensing cuff 73 is fixed to the main surface of the back plate 72 on the wrist 200 side by an adhesive layer.

[0086] The sensing cuff 73 has a length such that it contacts the area where the artery 210 of the wrist 200 is located when the blood pressure measurement device 1 is worn on the wrist 200. Figure 3 As shown, sensing cuff 73 has a length extending from radial artery 211 to ulnar artery 212 of artery 210 .

[0087] The sensing cuff 73 is formed, for example, to have the same shape as the back plate 72 in the longitudinal and width directions of the back plate 72 or to have a smaller shape than the back plate 72. Air is supplied to the sensing cuff 73, which is then compressed by the inflated compression cuff 71. As a result, the sensing cuff 73 is sandwiched between the inflated compression cuff 71 and compresses the area where the artery 210 is located on the palm side of the wrist 200. The sensing cuff 73 is pressed toward the wrist 200 via the back plate 72 by the inflated compression cuff 71.

[0088] like Figure 3 As shown, the sensing cuff 73 includes, for example, an air bag 91, a fluid path 92 communicating with the air bag 91, and a connection portion 93 provided at the top end of the fluid path 92. In the sensing cuff 73, one main surface of the air bag 91 is fixed to the back plate 72. The sensing cuff 73 is bonded to the main surface of the back plate 72 on the wrist 200 side via a bonding layer. Such a sensing cuff 73 is constructed by welding two sheet members 96 together.

[0089] Here, the air bag 91 refers to a bag-like structure. In this embodiment, the blood pressure measurement device 1 uses air through a pump and is described using an air bag. However, when a fluid other than air is used, the bag-like structure can be any fluid bag that can be expanded by the fluid.

[0090] The air bag 91 is formed into a rectangular shape that is long in one direction. The air bag 91 is formed by combining two sheet members 96 that are long in one direction, such as in Figure 3 As shown in the figure, the welded portion 91a is welded by heat into a rectangular frame shape that is long in one direction.

[0091] The flow path body 92 is integrally provided with a portion of the edge of one side of the long dimension of the air bag 91. Specifically, the flow path body 92 is provided at the end of the air bag 91 that is closer to the device body 3. Furthermore, the flow path body 92 is formed in a shape that is elongated in one direction, with a width smaller than the width of the short dimension of the air bag 91, and a rounded tip. The flow path body 92 has a connection portion 93 at its tip. The flow path body 92 is connected to the flow path portion of the device body 3 via the connection portion 93, forming a flow path between the flow path portion and the air bag 91.

[0092] The flow path body 92 is formed by heat-welding a portion of the sheet member 96 adjacent to the area of ​​the sheet member 96 that forms the air bag 91, with the connecting portion 93 positioned between the two sheet members 96. The portion of the sheet member 96 that is adjacent to the area of ​​the sheet member 96 that forms the air bag 91 is formed into a frame-like shape that is elongated in one direction. The flow path body 92 and the connecting portion 93 are configured such that a portion of the flow path body 92 is positioned within, for example, a slot formed in the compression cuff 71. As a result, the flow path body 92 and the connecting portion 93 are positioned on the side of the collar 5 relative to the compression cuff 71. Alternatively, the connecting portion 93 may be connected to the flow path portion of the device body 3 by passing through, for example, a hole formed in the compression cuff 71.

[0093] The air bag 91 and the flow path body 92 are fluidically connected by configuring the air bag 91 such that a portion of the welded portion 91a where two sheet members 96 are welded together in a rectangular frame shape is not welded and is continuous with the welded portion 92a constituting the flow path body 92 .

[0094] The connection portion 93 is, for example, a pipe joint. It is provided at the tip of the flow path body 92. The tip of the connection portion 93 is exposed to the outside from the sheet member 96 of the two sheets 96 constituting the flow path body 92, the sheet member 96 that faces the collar 5 and the back plate 72. The connection portion 93 is connected to the flow path portion.

[0095] The wall portion 76 is provided along at least one of the pair of edges along the longitudinal direction of the sensing cuff 73. In addition, the wall portion 76 has a length that is opposite to the region where the tendon 220 of the wrist 200 is located when the blood pressure measurement device 1 is worn on the wrist 200. In this embodiment, as an example, Figure 3As shown, the wall portion 76 has a length extending from one end to the other end in the longitudinal direction of the air bag 91 of the sensing cuff 73. Furthermore, the wall portion 76 is provided on the back plate 72, for example. The wall portion 76 may also be formed integrally with the back plate 72. Alternatively, the wall portion 76 may be formed by fixing a member separate from the back plate 72 to the back plate 72.

[0096] The wall portions 76 are disposed on the back plate 72 at positions adjacent to a pair of longitudinal edge portions of the sensing cuff 73. Specifically, a pair of wall portions 76 are provided. Furthermore, the pair of wall portions 76 are provided, for example, at the longitudinal edge portions of the back plate 72. When the cuff structure 6 is secured to the collar 5, the pair of wall portions 76 curve along the collar 5.

[0097] The wall portion 76 has Figure 2 When the blood pressure measurement device 1 is worn on the wrist 200 as shown, and air is supplied to the sensing cuff 73 to inflate the pressing cuff 71, the sensing cuff 73 is pressed tightly against the wrist 200, and the height at which the sensing cuff 73 can be brought into close contact with the wrist 200 is achieved. In this embodiment, the height of the wall portion 76 is the height from the main surface of the back plate 72 on the wrist 200 side to the top surface 76a of the wall portion 76.

[0098] In other words, if Figure 6 As shown, when the blood pressure measurement device 1 is worn on the wrist 200 and air is supplied to the sensing cuff 73 to inflate the pressing cuff 71, the height H1 from the main surface of the back plate 72 on the wrist 200 side to the top end 76a of the wall portion 76 is higher than the height H2 from the main surface of the back plate 72 on the wrist 200 side to the protruding end of the inflated sensing cuff 73 on the wrist 200 side. In this embodiment, as an example, the height of the wall portion 76 is constant from one end to the other end in the longitudinal direction of the wall portion 76.

[0099] In this embodiment, the wall portion 76 has a height that protrudes beyond the sensing cuff 73 when the sensing cuff 73 is inflated, for example, when the blood pressure measurement device 1 is not attached to the wrist 200. Here, the non-attached state, in which the blood pressure measurement device 1 is not attached to the wrist 200, refers to a state in which the blood pressure measurement device 1 is not mounted on the wrist 200. In other words, the wrist 200 is not positioned within the collar 5.

[0100] In addition, if Figure 3 As shown, each of the pair of wall portions 76 has a plurality of grooves 76b formed on its top surface 76a. The grooves 76b extend in a direction perpendicular to the longitudinal direction of the top surface 76a. The grooves 76b extend from one edge of the top surface 76a along the longitudinal direction to the other edge. The grooves 76b are evenly spaced along the longitudinal direction of the wall portion 76.

[0101] Furthermore, regarding the plurality of grooves 76b of the top end surface 76a of one wall portion 76, as shown in FIG. Figure 3 As shown, for example, the same number of grooves 76a as the grooves 72a of the back plate 72 are formed. In addition, the plurality of grooves 76b are arranged side by side with the grooves 72a of the back plate 72 in a direction perpendicular to the longitudinal direction of the top surface 76a. In addition, the direction in which the plurality of grooves 76b extend is parallel to the direction in which the plurality of grooves 72a extend. In other words, as shown in FIG. Figure 3 As shown, the grooves 76b and the grooves 72a on one distal end surface 76a and the grooves 76b on the other distal end surface 76a are arranged linearly in a direction perpendicular to the longitudinal direction of the distal end surface 76a in a plan view.

[0102] In the pair of wall portions 76, the portion having the plurality of grooves 76b is lower in height than the portion not having the grooves 76b. Therefore, the portion having the plurality of grooves 76b is easily deformed. Therefore, the pair of wall portions 76 have shape-conforming properties such that they deform according to the shape of the wrist 200 and extend in the circumferential direction of the wrist 200.

[0103] In the blood pressure measurement device 1 thus configured, when the blood pressure measurement device 1 is worn on the wrist 200 and air is supplied to the sensing cuff 73 and the pressing cuff 71 is inflated, the pair of walls 76 press the region of the wrist 200 where the artery 210 is located.

[0104] Specifically, by attaching the blood pressure measurement device 1 to the wrist 200 and tightening the band 4, the pair of walls 76 press the region where the artery of the wrist 200 is located. Furthermore, by inflating the compression cuff 71, the wall 76 further presses the region where the artery 210 of the wrist 200 is located.

[0105] The pair of walls 76 presses the area where the arteries of wrist 200 are located, thereby reducing the unevenness of the area where the arteries of wrist 200 are located. Here, the unevenness of wrist 200 refers to the unevenness produced by the tendons 220, bones, muscles, and other biological components of wrist 200. Since the unevenness of the area where the arteries of wrist 200 are located is reduced, the sensing cuff 73 adheres to the wrist properly.

[0106] Furthermore, since the unevenness of the area where the artery 210 of the wrist 200 is located is reduced, even if the sensing cuff 73 is supplied with air and then pressed against the wrist 200 by the inflated pressing cuff 71, it is possible to prevent it from collapsing. Here, collapsing means that the wrist 200 side of the inner surface of the sensing cuff 73 abuts against the back plate 72 side. As a result, the sensing cuff 73 can be uniformly inflated. Since the sensing cuff 73 can be uniformly inflated, the pressure inside the sensing cuff 73 can be uniform. Therefore, if Figure 6 As shown, the pressure acting on the wrist 200 in the area where the sensing cuff 73 is in close contact can be made substantially constant.

[0107] Furthermore, the pair of walls 76 presses the region where the artery of wrist 200 is located, causing wrist 200 to conform to the top surface 76a of wall 76. As wrist 200 conforms to the top surface 76a of wall 76, sensing cuff 73 fits snugly against the region where artery 210 of wrist 200 is located.

[0108] In this manner, the pressure in the sensing cuff 73 is made uniform and the sensing cuff 73 is brought into close contact with the wrist 200 , thereby improving the accuracy of blood pressure measurement.

[0109] Furthermore, the wall portion 76 has a length that opposes the tendon 220 when the blood pressure measurement device 1 is worn on the wrist 200, so that the tendon 220 can be pressed against the wrist 200. Therefore, the sensing cuff 73 can be brought into close contact with the region of the wrist 200 where the radial artery 211 and the ulnar artery 212 are located.

[0110] Furthermore, the blood pressure measurement device 1 is configured with a pair of walls 76. Therefore, the pair of walls 76 press against the wrist 200. As the wrist 200 is pressed by the pair of walls 76, the portion between the pair of walls 76 of the wrist 200 conforms to the top surface 76a. Therefore, the area of ​​the wrist 200 that conforms to the top surface 76a of the wall 76 can be increased, allowing the sensing cuff 73 to more appropriately adhere to the area of ​​the wrist 200 where the artery 210 is located.

[0111] Furthermore, since the pair of wall portions 76 are provided on the back plate 72, the pair of wall portions 76 are supported by the back plate 72. Therefore, the pair of wall portions 76 can be pressed toward the wrist 200 side in a stable manner.

[0112] Furthermore, when the compression cuff 71 is expanded, the wall portion 76 is pressed toward the wrist 200 by the back plate 72. Therefore, when the blood pressure measurement device 1 is worn on the wrist 200 and air is supplied to the sensing cuff 73 to expand the compression cuff 71, stress generated on the surface of the compression cuff 71 can be prevented from increasing.

[0113] Furthermore, since the pair of walls 76 are integrally formed with the back plate 72, an increase in the number of components of the blood pressure measurement device 1 can be prevented. Therefore, the efficiency of assembling the cuff structure 6 can be improved, thereby improving the efficiency of assembling the blood pressure measurement device 1.

[0114] Furthermore, by forming a plurality of grooves 76b on the top surfaces 76a of the pair of wall portions 76, the back plate 72 is easily bent, thereby improving the efficiency of securing the back plate 72 to the collar 5. Furthermore, if the curvature of the collar 5 differs from the curvature of the wrist 200, the collar 5 can be deformed to match the wrist 200 by tightening the band 4 when attaching the blood pressure measurement device 1 to the wrist 200. In this case, the plurality of grooves 76b facilitates the bending of the wall portion 76, thereby improving the efficiency of the attachment operation of the blood pressure measurement device 1.

[0115] Moreover, a plurality of grooves 76b formed on the top end surfaces 76a of the pair of wall portions 76 are arranged side by side in a direction orthogonal to the long dimension direction of the wall portions 76, whereby the bending points of the back plate 72 and the wall portions 76 can be made to coincide.

[0116] That is, the back plate 72 is bent as a whole by bending at the groove 72a, and the wall portions 76 are bent as a whole by bending at the groove 76b. Since the groove 72a and the groove 76b are arranged side by side and the bending points of the back plate 72 and the wall portions 76 can be made to coincide, the shape followability of the cuff structure 6 that deforms following the wrist 200 can be improved.

[0117] Moreover, the wall portions 76 have a height that protrudes more than the sensing cuff 73 in a state where the sensing cuff 73 is inflated when the blood pressure measuring device 1 is not worn on the wrist 200. Therefore, in a state where the blood pressure measuring device 1 is worn on the wrist 200 and the pressing cuff 71 is not inflated, the wall portions 76 press the wrist 200.

[0118] Then, due to the wall portions 76, the degree of unevenness in the region where the artery of the wrist 200 is located becomes smaller. In this state, air is supplied to the sensing cuff 73, and the pressing cuff 71 is inflated. As a result, air can be smoothly supplied to the sensing cuff 73.

[0119] As described above, according to the blood pressure measuring device 1 of the present embodiment, the measurement accuracy of blood pressure can be improved.

[0120] In addition, in the above example, the wall portions 76 have a height that protrudes more than the sensing cuff 73 and the sensing cuff 73 can be in close contact with the region where the artery 210 of the wrist 200 is located in a state where the blood pressure measuring device 1 is worn on the wrist 200, air is supplied to the sensing cuff 73, and the pressing cuff 71 is inflated. And, as an example, a configuration in which the wall portions 76 have a height that protrudes more than the sensing cuff 73 in a state where the sensing cuff 73 is inflated when the blood pressure measuring device 1 is not worn on the wrist 200 has been described. However, it is not limited thereto.

[0121] Regarding the wall portions 76, as long as they protrude more than the sensing cuff 73 and can make the sensing cuff 73 in close contact with the region where the artery of the wrist 200 is located in a state where the blood pressure measuring device 1 is worn on the wrist 200, air is supplied to the sensing cuff 73, and the pressing cuff 71 is inflated, it may also be a configuration in which the wall portions 76 are lower than the sensing cuff 73 (H1 < H2) in a state where the sensing cuff 73 is inflated when the blood pressure measuring device 1 is not worn on the wrist 200 as in the modified example shown in Figure 7 . It should be noted that, in Figure 7 , the pressing cuff 71 and the retaining ring 5 are shown in an omitted manner.

[0122] exist Figure 7 In the blood pressure measurement device 1 of the modified example shown, when air is supplied to the sensing cuff 7 and the inflated pressing cuff 71 is pressed against the wrist 200, the thickness of the sensing cuff 73 becomes thicker than Figure 7 The thickness of the sensing cuff 73 shown is small, and the wall portion 76 protrudes beyond the sensing cuff 73 .

[0123] In addition, it can also be, Figure 8 As in the illustrated modification, when the blood pressure measurement device 1 is not worn on the wrist 200 and the sensing cuff 73 is inflated, the wall portion 76 is configured to be at the same height as the sensing cuff 73 ( H1 = H2 ).

[0124] exist Figure 8 In the blood pressure measurement device 1 of the modified example shown, when air is supplied to the sensing cuff 73 and the inflated pressing cuff is pressed against the wrist 200, the thickness of the sensing cuff 73 becomes thicker than Figure 8 The thickness shown is small, with the wall portion 76 protruding beyond the sensing cuff 73 .

[0125] It should be noted that it can also be, for example Figure 7 or Figure 8 As shown, the wall portion 76 is configured such that, when the blood pressure measurement device 1 is not worn on the wrist 200 and the sensing cuff 73 is inflated, the wall portion 76 protrudes higher than the sensing cuff 73 or is the same height as the sensing cuff 73. However, since the wall portion 76 protrudes higher than the sensing cuff 73 when the blood pressure measurement device 1 is not worn on the wrist 200 and the sensing cuff 73 is inflated, air is supplied to the sensing cuff 73 while the concave and convex portions of the wrist 200 are reduced by the wall portion 76 via the tightening band 4. This allows smooth air supply to the sensing cuff 73, allowing the sensing cuff 73 to more appropriately adhere to the region of the wrist 200 where the artery 210 is located. Therefore, it is preferable that the wall portion 76 protrude higher than the sensing cuff 73 when the blood pressure measurement device 1 is not worn on the wrist 200 and the sensing cuff 73 is inflated.

[0126] In the above example, the wall portion 76 and the back plate 72 are integrally formed as one body, but the present invention is not limited thereto. In other examples, the wall portion 76 and the back plate 72 may be formed separately.

[0127] For example, in a configuration where the cuff structure 6 does not include the back plate 72, the wall portion 76 may be formed integrally with the pressing cuff 71. It should be noted that, as an example of a configuration where the cuff structure 6 does not include the back plate 72, there is a configuration in which at least the region of the sheet material constituting the surface of the pressing cuff 71 facing the wrist 200, to which the sensing cuff 73 is fixed, is formed so as to support the sensing cuff 73 in the same manner as the back plate 72.

[0128] In addition, in a configuration in which the cuff structure 6 includes the back plate 72 , the wall portion 76 may be formed integrally with the pressing cuff 71 .

[0129] When the wall portion 76 is formed in the pressing cuff 71 in this manner, the wall portion 76 may be, for example, Figure 9 The wall portion 76 is formed at the weld portion 81a of the compression cuff 71, as in the modified example shown. It should be noted that even if the compression cuff 71 expands, the weld portion 81a does not move toward the wrist 200. Therefore, when the wall portion 76 is formed at the weld portion 81a, even if the compression cuff 71 expands, the wall portion 76 does not move toward the wrist 200. Thus, when the wall portion 76 is formed at a location that does not move toward the wrist 200 even if the compression cuff 71 expands, as in the weld portion 81a of the compression cuff 71, the wall portion 76 has a height corresponding to the region where the artery 210 that compresses the wrist 200 is located when the blood pressure measurement device 1 is worn.

[0130] In addition, as an example of a structure in which the wall portion 76 and the back plate 72 are formed separately, Figure 10 As shown in the modified example, the wall portion 76 is formed integrally with the sensing cuff 73. As an example of a configuration in which the wall portion 76 is provided on the sensing cuff 73, the wall portion 76 may also be provided on the welding portion 91a. Figure 10 In the figure, the pressing cuff 71 and the back plate 72 are omitted.

[0131] In addition, in the above example, the wall portion 76 is formed along a pair of edges of the sensing cuff 73 along the longitudinal direction as an example, but the present invention is not limited to this. Figure 11 As shown in the modified example, the wall portion 76 is formed along one of a pair of longitudinal edge portions of the sensing cuff 73. In this configuration, the position of the wall portion 76 is selected so that when the blood pressure measurement device 1 is worn on the wrist 200, the wall portion 76 is located between the finger side and the shoulder side relative to the sensing cuff 73, where blood pressure measurement can be more appropriately performed.

[0132] Furthermore, in the above example, the wall portion 76 is described as having a constant height from one end to the other end along the direction in which the sensing cuff 73 extends, but the present invention is not limited thereto. In other examples, the height of the wall portion 76 may be non-constant from one end to the other end along the direction in which the sensing cuff 73 extends.

[0133] Thus, as an example of a structure in which the wall portion 76 has different heights from one end to the other end in the direction in which the wall portion 76 extends along the edge of the longitudinal direction of the sensing cuff 73, it is also possible to have a structure in which the wall portion 76 has different heights from one end to the other end. Figure 12 As shown, the wall portion 76 is formed in a shape in which the height of the portion facing the hard portion such as the tendon 220, bone, and muscle of the wrist 200 is higher than that of the other portion. Figure 12 The structure in which the wall portion 76 is provided on the back plate 72 is shown as an example, and the side surface of the wall portion 76 and the back plate 72 is shown. Figure 12 In the modified example shown, a configuration in which the distal end surface 76 of the wall portion 76 is formed as a curved surface is shown as an example.

[0134] like Figure 12 As shown in the modified example, by configuring the portion of the wall portion 76 facing the hard biological body such as the tendon 220, bone, and muscle to be higher than the other portion, the hard portion of the wrist 200 can be pressed in. As a result, the unevenness of the wrist 200 can be reduced.

[0135] Furthermore, in the above example, the wall portion 76 has a length extending from one end to the other end of the air bag 91 of the sensing cuff 73 in the longitudinal direction. In other words, it has a length extending from one end to the other end of the edge of the sensing cuff 73 along the longitudinal direction. Furthermore, in this embodiment, as an example, the wall portion 76 has a length extending from one end to the other end of the back plate 72 in the longitudinal direction.

[0136] However, this is not limited to this. In other examples, the wall portion 76 may be provided along a portion between one end and the other end of at least one of the edges along the longitudinal direction of the sensing cuff 73. As an example, Figure 13 As shown, the wall portion 76 may be formed only in a portion facing a hard living body such as the tendon 220 , bone, or muscle when the blood pressure measurement device 1 is worn on the wrist 200 . Figure 13 The structure of a portion of the wall portion 76 between one end and the other end of the sensing cuff 73 along the longitudinal direction is shown. Figure 13 A configuration in which the wall portion 76 and the back plate 72 are integrally formed is shown as an example, and the side surfaces of the wall portion 76 , the back plate 72 , and the air bag 91 of the sensing cuff 73 are shown.

[0137] In addition, in the above example, the configuration in which a wall portion 76 is provided along one edge of the sensing cuff 73 in the longitudinal direction is described as an example, but the present invention is not limited thereto. In other examples, it may be, for example, Figure 14 As shown in the modified example, a plurality of wall portions 76 are formed along one edge of the sensing cuff 73 in the longitudinal direction. In other words, the wall portion 76 may be divided into a plurality of parts. Since the wall portion 76 is divided into a plurality of parts in this way, it is easy to attach the blood pressure measurement device 1 to the wrist 200. It should be noted that Figure 14 A configuration in which the wall portion 76 is formed on the back plate 72 is shown as an example, and the wall portion 76 and the side surface of the back plate 72 are shown.

[0138] Furthermore, in the above example, the cuff structure 6 is described as an example in which a portion of the pressing cuff 71 is disposed on the dorsal side of the wrist 200 when the blood pressure measurement device 1 is worn on the wrist 200. However, the present invention is not limited to this configuration. In another example, the cuff structure 6 may include a stretch cuff 74 that is separate from the pressing cuff 71, as the cuff disposed on the dorsal side of the wrist 200 when the blood pressure measurement device 1 is worn on the wrist 200.

[0139] use Figure 15 and Figure 16 This modification example will be described. Figure 15 1 is an explanatory diagram showing a state where the blood pressure measurement device 1 according to a modified example is worn on a wrist 200 . Figure 16 It is a plan view showing a cuff structure 6A of the blood pressure measurement device 1 according to a modified example. Figure 16 The surface of the cuff structure 6A that faces the wrist 200 when the blood pressure measurement device 1 is worn on the wrist 200 is shown.

[0140] like Figure 15 and Figure 16 As shown, the cuff structure 6A includes a compression cuff 71A, a back plate 72, a sensing cuff 73, and a tension cuff 74. The cuff structure 6A includes a joining layer for joining the components together and the collar 5 to the compression cuff 71A.

[0141] The compression cuff 71A is fluidically connected to the pump via a flow path. The compression cuff 71A expands to press the back plate 72 and the sensing cuff 73 toward the wrist 200. The compression cuff 71A is shaped like a band extending in one direction. The compression cuff 71A is secured to the inner circumference of the collar 5 via a bonding layer.

[0142] Specifically, the pressing cuff 71A includes an air bladder 81 , a flow path body 83 communicating with the air bladder 81 , and a connecting portion 84 provided at the distal end of the flow path body 83 .

[0143] like Figure 16 As shown, the flow path body 83 is integrally provided with a portion of the edge of one end of the air bag 81 in the longitudinal direction. Specifically, the flow path body 83 is provided at the end of the air bag 81 that is closest to the device body 3. Furthermore, the flow path body 83 is formed in a shape that is elongated in one direction, with a width smaller than the width of the air bag 81 in the transverse direction, and a rounded tip. The flow path body 83 has a connecting portion 84 at its tip.

[0144] The flow path body 83 is formed by thermally welding a portion of the sheet member 86 adjacent to the region forming the air bag 81 of the sheet member 86 , with the connection portion 84 disposed therebetween, into a frame shape elongated in one direction.

[0145] The air bag 81 provided with the flow path 83 is configured such that a portion of the welded portion 81a, which welds two sheet members 86 together in a rectangular frame shape, is left unwelded, thereby connecting to the welded portion 83a forming the flow path 83. The connecting portion 84 is connected to the flow path portion.

[0146] The stretch cuff 74 is connected to the pump fluid via a flow path. The stretch cuff 74 is secured to the back of the wrist 200, on the side of the collar 5. The stretch cuff 74 expands, pressing the collar 5 to separate from the wrist 200, thereby stretching the belt 4 and the collar 5 toward the back of the wrist 200. The stretch cuff 74 includes, for example, multiple air bags 101 and a connecting portion 103 provided on the air bags 101 facing the collar 5. For example, the multiple air bags 101 are six layers of air bags 101.

[0147] Here, the air bag 101 refers to a bag-like structure. In this embodiment, the blood pressure measurement device 1A utilizes air via a pump, and thus, an air bag is used for the purpose of explanation. However, when a fluid other than air is used, the bag-like structure may be any fluid bag that expands with the fluid. Multiple air bags 101 are stacked and fluidically connected in the stacking direction.

[0148] Such a stretch cuff 74 is constructed by welding together a plurality of sheet members 106. Furthermore, the stretch cuff 74 is fixed to the back of the wrist 200 of the collar 5. Specifically, the flow path member 83 of the compression cuff 71A and the flow path member 92 of the sensing cuff 73 are positioned between the back of the wrist 200 of the collar 5 and the stretch cuff 74.

[0149] Furthermore, the tension cuff 74 is configured so that, in the direction of expansion (in this embodiment, the direction in which the collar 5 faces the wrist 200), its thickness when inflated is thicker than that of the compression cuff 71A and the sensing cuff 73. Specifically, the air bag 101 of the tension cuff 74 has a multi-layer structure compared to the air bag 81A of the compression cuff 71A and the air bag 91 of the sensing cuff 73, and its thickness when inflated from the collar 5 toward the wrist 200 is thicker than that of the compression cuff 71A and the sensing cuff 73.

[0150] The air bag 101 is formed into a rectangular bag shape that is long in one direction. In addition, the width of the short dimension direction of the air bag 101 is set to be the same as the width of the short dimension direction of the collar 5. The air bag 101 is formed by combining two sheet members 106, such as in Figure 16 As shown in the figure, the six-layer air bag 101 is welded by heat into a rectangular frame shape elongated in one direction. The six-layer air bag 101 is fluidically connected through openings provided in the sheet members 106 facing each other.

[0151] Connecting portion 103 is, for example, a pipe joint. Connecting portion 103 is provided on air bag 101, which is positioned adjacent to collar 5. The distal end of connecting portion 103 is exposed from the sheet member 106 of the two sheets 106 constituting air bag 101, the sheet member 106 facing collar 5. Connecting portion 103 is connected to the flow path portion of device body 3.

[0152] That is, the present invention is not limited to the above-mentioned embodiments, and various modifications can be made during the implementation stage without departing from the main purpose. In addition, the various embodiments can be combined as appropriately as possible to achieve the combined effect in this case. Moreover, the inventions at various stages included in the above-mentioned embodiments can be extracted by appropriate combinations of the multiple components disclosed. For example, if a problem can be solved and an effect can be achieved even if some components are deleted from all the components shown in the embodiment, the configuration with the deleted components can be extracted as an invention.

[0153] Description of Reference Numerals

[0154] 1: Blood pressure measuring device;

[0155] 3: device body;

[0156] 4: belt;

[0157] 5: Clamp ring;

[0158] 6: Cuff structure;

[0159] 11: Shell;

[0160] 12: Display unit;

[0161] 13: Operation unit;

[0162] 31: contour shell;

[0163] 31a: ear;

[0164] 31b: spring rod;

[0165] 32: Windshield;

[0166] 41: button;

[0167] 61: first zone;

[0168] 61a: girdle;

[0169] 61b: buckle;

[0170] 61e: frame body;

[0171] 61f: Button tongue;

[0172] 62: second band;

[0173] 62a: small hole;

[0174] 71: Press the cuff;

[0175] 72: back panel;

[0176] 72a: slot;

[0177] 73: Sensing cuff;

[0178] 74: stretch cuff;

[0179] 81: air bag;

[0180] 84: connecting part;

[0181] 86: Sheet member;

[0182] 91: air bag;

[0183] 92: Flow path body;

[0184] 93: connecting part;

[0185] 96: Sheet member;

[0186] 101: air bag;

[0187] 103: connecting part;

[0188] 106: Sheet member;

[0189] 200: wrist;

[0190] 210: artery;

[0191] 211: radial artery;

[0192] 212: ulnar artery;

[0193] 220: Tendon

Claims

1. A cuff structure for use in a blood pressure measurement device worn on a wrist, comprising: a sensing cuff, configured to be long in one direction and in contact with an area of ​​the wrist where an artery is located; A pressing cuff is formed in a shape long in one direction, is provided on the side opposite to the wrist side surface of the sensing cuff, and presses the sensing cuff to the wrist by expanding; a back plate, disposed between the compression cuff and the sensing cuff; as well as A wall portion is provided on the back plate, the sensing cuff or the compression cuff along at least one of the edges of the sensing cuff in the longitudinal direction, and the top surface of the wall portion contacts the wrist. When the blood pressure measurement device is worn on the wrist, the top surface contacts the wrist, and when the sensing cuff is inflated, the wall portion protrudes further toward the wrist than the sensing cuff to allow the sensing cuff to be in close contact with the wrist.

2. The cuff structure according to claim 1, wherein: A plurality of grooves perpendicular to the longitudinal direction are formed on the top surface.

3. A blood pressure measuring device, worn on the wrist, comprising: Device body; a collar, provided on the device body; and The cuff structure is provided on the collar and comprises a sensing cuff, a pressing cuff, a back plate and a wall portion, wherein the sensing cuff is configured to be long in one direction and to contact the area where the artery of the wrist is located, the pressing cuff is configured to be long in one direction and to be provided on the side opposite to the wrist side of the sensing cuff and to press the sensing cuff to the wrist by expanding, the back plate is provided between the pressing cuff and the sensing cuff, the wall portion is provided on the back plate, the sensing cuff or the pressing cuff along at least one of the edges of the sensing cuff in the long dimension direction, and the top surface of the wall portion is in contact with the wrist, When worn on the wrist, the top surface contacts the wrist, and when the sensing cuff is inflated, the wall portion protrudes further toward the wrist than the sensing cuff to allow the sensing cuff to come into close contact with the wrist.

Images