Blood pressure measuring device

Abstract

The blood pressure measuring device (1) comprises: a cuff structure (6) having connecting portions (84, 93), the connecting portions (84, 93) being located at a position opposite to the wrist (200) side of the housing (11) and connected to the connected portion (38A, 38B) of the housing (11); a belt body (61) having a bag body (63) and a mounting portion (64), wherein the bag body (63) has a hole formed at one end in the longitudinal direction opposite to the connected portion (38A, 38B) with the cuff structure (6) disposed inside, for mounting the connecting portion (84, 93). 65A, 65B), one end of the mounting part (64) is fixed to one end of the bag body (63) and is closer to the other end than the hole (65A, 65B) of the bag body (63), and the other end of the mounting part (64) is mounted to the mounting part (35). When the cuff structure (6) is disposed in the bag body (63), the length from one end to the mounting part (35) is shorter than the length from one end to the connecting part (84, 93); and the fixing part (62) is provided in the bag body (63) to fix the part of the bag body (63) that is folded back and stacked on the shaft part (36).

Description

Technical Field

[0001] This invention relates to a blood pressure measuring device worn on the wrist. Background Technology

[0002] In recent years, blood pressure measuring devices have been used not only in medical facilities to assess health status but also in homes. These devices, for example, involve inflating and contracting a cuff wrapped around the upper arm or wrist, using a pressure sensor to detect the pressure in the cuff, thereby detecting vibrations in the arterial walls to measure blood pressure.

[0003] As such a blood pressure measuring device, there is a known integrated blood pressure measuring device in which the cuff and the main body of the device for supplying fluid to the cuff are integrated into one unit. Moreover, as for the integrated blood pressure measuring device, a wearable device worn on the wrist can also be considered. As a technique for wearing the blood pressure measuring device on the wrist, there is a known technique in which the cuff is attached to the inside of the strap provided on the main body of the device and is fastened to the wrist.

[0004] Furthermore, regarding this type of blood pressure measuring device, a technique is known in which a retaining ring is used between the band and the cuff to ensure that the expanded cuff fits snugly against the wrist. In such a blood pressure measuring device, the cuff is fixed to the inner circumferential surface of the retaining ring. Moreover, Japanese Patent Application Publication No. 2019-118418 discloses a technique in which a retaining ring and a cuff are fixed to the main body of the device via a rear cover, and the cuff is connected to a flow path section that is continuous with the pump fluid.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2019-118418 Summary of the Invention

[0008] The problem that the invention aims to solve

[0009] In the aforementioned blood pressure measuring devices that are worn on the wrist using a strap, the cuff and strap are separate components. Therefore, when the user wears the blood pressure measuring device on their wrist, the strap and cuff may be offset relative to each other along the wrist's axial direction along the length of the forearm. If the strap and cuff are offset relative to each other along the wrist's axial direction, the cuff will not be properly pressed against the wrist during blood pressure measurement, which may reduce the accuracy of the blood pressure measurement.

[0010] Therefore, the purpose of this invention is to provide a blood pressure measuring device that can prevent a decrease in the accuracy of blood pressure measurement.

[0011] Technical solution

[0012] According to one embodiment, a blood pressure measuring device is provided, which is worn on a user's wrist. The device comprises: a housing having a housing body, a mounting portion, a shaft portion, and a connecting portion; the mounting portion being located symmetrically on one side of the outer peripheral surface of the housing body, the shaft portion being located on the other side, and the connecting portion being located on the wrist side of the housing body; a pump housed within the housing body and fluidly connected to the connecting portion; and a cuff having a connecting portion located opposite the wrist side of the housing body and connected to the connecting portion, the cuff being connected to the pump via the connecting portion. A fluid connection; and a belt having a bag body, a mounting portion, and a fixing portion, the bag body internally accommodating the cuff and being a belt wrapped around the wrist, having a hole formed at one end in the longitudinal direction for the mounting portion to be disposed thereon, one end of the mounting portion being fixed to the one end of the bag body and being closer to the other end than the hole, the other end of the mounting portion being mounted to the mounted portion, the length from the one end to the mounted portion being shorter than the length from the one end to the mounting portion disposed in the hole, and the fixing portion being provided in the bag body for fixing the portion of the bag body that is folded back and stacked at the axial portion.

[0013] The cuff expands by being supplied with fluid and includes bag-like structures such as air pockets.

[0014] According to this design, the cuff is housed within the pouch. Therefore, when the blood pressure measuring device is worn on the wrist, even if the cuff moves along the wrist's axis within the pouch, the cuff is properly pressed against the wrist because it is contained within the pouch. As a result, the accuracy of blood pressure measurement is improved.

[0015] In one of the above-mentioned blood pressure measuring devices, a blood pressure measuring device is provided in which the connected part and the connecting part are configured such that one is inserted into the other.

[0016] According to this scheme, the connecting part can be easily connected to the connected part.

[0017] In one of the above-mentioned blood pressure measuring devices, a blood pressure measuring device is provided, wherein the mounting part is flexible.

[0018] This design increases the movable area of ​​the axial section. Therefore, it facilitates the assembly and disassembly of the blood pressure measuring device relative to the wrist.

[0019] In one of the above-mentioned blood pressure measuring devices, a blood pressure measuring device is provided, wherein the bag body and the mounting part are made of cloth.

[0020] This scheme can improve the wearability of blood pressure measuring devices.

[0021] Invention Effects

[0022] This invention provides a blood pressure measuring device that can prevent a decrease in the accuracy of blood pressure measurement. Attached Figure Description

[0023] Figure 1 This is a perspective view showing the configuration of a blood pressure measuring device according to one embodiment of the present invention.

[0024] Figure 2 This is a side view showing a partial sectional view of the blood pressure measuring device.

[0025] Figure 3 This is a side view showing the configuration of the cuff structure used in the blood pressure measuring device.

[0026] Figure 4 This is a perspective view showing the structure of the cuff and the bag used for the blood pressure measuring device.

[0027] Figure 5 This is a side view showing a partial sectional view of the structure of the bag and the cuff.

[0028] Figure 6 This is a top view showing the structure of the cuff.

[0029] Figure 7 This is a cross-sectional view showing the structure of the bag and the cuff.

[0030] Figure 8 This is a cross-sectional view showing the structure of the bag and the cuff.

[0031] Figure 9 This is an explanatory diagram showing the blood pressure measuring device worn on the wrist.

[0032] Figure 10 This is an explanatory diagram showing the configuration of the mounting portion in a modified example of the present invention.

[0033] Figure 11 This is an explanatory diagram showing a modified example of the cuff structure of the present invention. Detailed Implementation

[0034] Hereinafter, an example of a blood pressure measuring device 1 according to one embodiment of the present invention will be described. Figures 1 to 9 Examples are shown below.

[0035] Figure 1 This is a three-dimensional diagram showing the structure of the blood pressure measuring device 1. Figure 2 This is a side view showing a partial section of the blood pressure measuring device 1. Specifically, Figure 2 The image shows the state of the belt 4 used for blood pressure measuring device 1 after it has been cut open.

[0036] Figure 3 This is a side view showing the configuration of the cuff structure 6 used in the blood pressure measuring device 1. Figure 3 The image shows the sleeve structure 6 wrapped around the wrist 200. Figure 4 It is a three-dimensional diagram showing the structure of the belt 4 that contains the sleeve structure 6. Figure 5 This is a side view showing a partial section of the structure of the belt 4 and the cuff construction 6. Specifically, Figure 5 The image shows the state after strip 4 has been cut.

[0037] Figure 6 This is a top view showing the structure of the cuff construction 6. Figure 7 This is a cross-sectional view showing the composition of the band 4 and the cuff structure 6. Specifically, Figure 7 The image shows the state after the strap 4 and the cuff structure 6 are cut along the width direction of the cuff structure 6 at the position passing through the pressing cuff 71, the back plate 72 and the sensing cuff 73. Figure 8 This is a cross-sectional view showing the composition of the band 4 and the cuff structure 6. Specifically, Figure 8 The image shows the state after the strap 4 and the cuff structure 6 are cut along the width direction at the position passing through the pressing cuff 71 and the first connecting part 84. Figure 9 This is an explanatory diagram showing the state of the blood pressure measuring device 1 being worn on the wrist 200.

[0038] The blood pressure measuring device 1 is an electronic blood pressure measuring device worn on a living organism. In this embodiment, an electronic blood pressure measuring device in the form of a wearable device worn on the wrist 200 of a living organism will be used for description.

[0039] like Figure 1 and Figure 2 As shown, the blood pressure measuring device 1 includes: a device body 3; a belt 4 disposed on the device body 3 for wrapping the device body 3 around the wrist 200; and a cuff structure 6 housed in the belt 4.

[0040] The main body of the device 3 includes, for example, a housing 11, a display unit 12, and an operation unit 13. In addition, the main body of the device 3 includes, within the housing 11, a pump 14 for inflating the cuff structure 6, a flow path section for fluidly connecting the pump 14 and the cuff structure 6, and a control board.

[0041] The housing 11 has a contour housing 31 and a windshield 32 that covers the contour housing 31 and has an opening opposite to the wrist 200 side.

[0042] The housing 31 may include, for example, a housing body 33 formed in a cylindrical shape, two pairs of ears 37, a bottom wall portion 34 provided at one end of the housing body 33, a mounting portion 35, and a shaft portion 36.

[0043] The main body of the shell 33 is, for example, formed in a cylindrical shape.

[0044] One pair of ears 37 is located on one side of the outer peripheral surface of the housing body 33 in a circumferentially symmetrical position. The other pair of ears 37 is located on the other side of the outer peripheral surface of the housing body 33 in a circumferentially symmetrical position. The pairs of ears 37 are arranged circumferentially on the housing body 33. The pair of ears 37 on one side is designated as the first ear 37A, and the pair of ears 37 on the other side is designated as the second ear 37B.

[0045] The mounting part 35 is provided, for example, between a pair of first ears 37A. The mounting part 35 is for mounting the mounting part 64 (described later) of the belt 4. The mounting part 35 is, for example, detachably mounted to a pair of first ears 37A. The mounting part 35 is, for example, a spring rod.

[0046] The shaft portion 36 functions as a fulcrum for the folding back of the bag body 63, which will be described later with respect to the supply strap 4. The shaft portion 36 is configured, for example, to allow the bag body 63 to fold back around a single axis in the width direction of the bag body 63. The shaft portion 36 is configured, for example, parallel to a direction orthogonal to the winding direction of the bag body 63 toward the wrist 200. The shaft portion 36 is configured, for example, as a rod-shaped component located between a pair of second ears 37B. The shaft portion 36 is, for example, a spring rod detachably mounted to a pair of second ears 37B.

[0047] The bottom wall portion 34 is provided at the opening on the wrist 200 side of the housing body 33, and covers the opening. Here, the wrist 200 side refers to the wrist 200 side when the blood pressure measuring device 1 is worn on the wrist 200.

[0048] The bottom wall portion 34 is an example of the wrist 200 side of the housing 11. A connecting portion 38 is formed in the bottom wall portion 34. The connecting portion 38 is fluidly continuous with the pump 14. For example, a flow path continuous with the pump 14 is formed inside the housing 11, and the connecting portion 38 constitutes part of this flow path. The connecting portion 38 is configured to connect to the connecting portions 84 and 93, which will be described later, of the cuff structure 6.

[0049] The number of connected portions 38 is the same as the number of connecting portions 84 and 93 of the cuff structure 6. In this embodiment, as an example, the cuff structure 6 has two connecting portions 84 and 93, thus forming two connected portions 38. One connected portion 38 is designated as the first connected portion 38A, and the other connected portion 38 is designated as the second connected portion 38B.

[0050] The first connected portion 38A is configured, for example, to allow the connecting portion 84 to be inserted. The first connected portion 38A is formed, for example, into a hole that opens on the outer surface 34a of the bottom wall portion 34.

[0051] The second connected portion 38B is configured, for example, to allow the connecting portion 93 to be inserted. The second connected portion 38B is formed, for example, as a hole that opens on the outer surface 34a of the bottom wall portion 34.

[0052] The windshield 32 is, for example, a circular glass panel.

[0053] The display unit 12 is positioned opposite the windshield 32. For example... Figure 1 As shown, 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 date and time, blood pressure values ​​such as highest and lowest blood pressure, heart rate, and other measurement results.

[0054] The operation unit 13 is configured to input commands from the user. For example, the operation unit 13 has the following features: Figure 1 As shown, the housing 11 has multiple buttons 41 and sensors for detecting the operation of the buttons 41. For example, three buttons 41 may be provided.

[0055] The belt 4 has a belt body 61 and a fixing part 62.

[0056] The main body 61 includes a bag body 63 and an installation part 64.

[0057] The bag body 63 is a bag-shaped structure that houses the cuff structure 6, and is configured to wrap around the wrist 200. Furthermore, the bag body 63 is configured to press the cuff structure 6 against the wrist 200 while it is wrapped around the wrist 200 and secured by the fixing part 62. Additionally, the bag body 63 is configured to press the cuff structure 6, which expands during blood pressure measurement, against the wrist 200.

[0058] Furthermore, in this embodiment, the cuff structure 6 is configured to expand by air supplied from the pump 14, and the bag body 63 is configured as a bag shape that does not hinder the expansion of the cuff structure 6.

[0059] The length of the bag body 63 when the blood pressure measuring device 1 is worn on the wrist 200 and folded back at the shaft 36 is the length of the bag body 63 in the longitudinal direction. The internal dimension of the bag body 63 in the longitudinal direction is set to the circumferential (longitudinal) length of the cuff structure 6.

[0060] In this embodiment, the cuff structure 6 includes, for example, a pressing cuff 71, a back plate 72, and a sensing cuff 73. Furthermore, the length of the pressing cuff 71 is longer than the lengths of both the back plate 72 and the sensing cuff 73. Therefore, the internal length of the bag body 63 is set to be greater than or equal to the length of the pressing cuff 71.

[0061] The internal dimension of the bag body 63 in the short dimension direction is set to be greater than or equal to the length of the sleeve structure 6 in the short dimension direction, for example, approximately equal to the width of the sleeve structure 6 in the short dimension direction. In this embodiment, for example, the dimension of the pressing sleeve 71 in the short dimension direction is longer than the length of the back plate 72 and the sensing sleeve 73 in the short dimension direction respectively. Therefore, the internal dimension of the bag body 63 in the short dimension direction is approximately equal to the length of the pressing sleeve 71 in the short dimension direction.

[0062] The internal dimension of the bag body 63 in the thickness direction is set to a length that does not impede the expansion of the cuff structure 6. For example, the internal dimension of the bag body 63 in the thickness direction is set to a length that accommodates the expansion of the cuff structure 6.

[0063] like Figure 4 As shown, a hole 65 is formed at one end of the bag body 63 along its longitudinal direction. The number of holes 65 is the same as the number of connecting portions 84 and 93 provided in the sleeve structure 6. In this embodiment, two connecting portions 84 and 93 are provided, thus forming two holes 65. One hole 65 is designated as the first hole 65A, and the other hole is designated as the second hole 65B.

[0064] The first hole 65A is formed at a position opposite to the first connecting portion 84 when the cuff structure 6 is housed within the bag body 63. The first hole 65A is provided for the first connecting portion 84 when the cuff structure 6 is housed within the bag body 63. The second hole 65B is formed at a position opposite to the second connecting portion 93 when the cuff structure 6 is housed within the bag body 63. The second hole 65B is provided for the second connecting portion 93 when the cuff structure 6 is housed within the bag body 63.

[0065] The bag body 63 thus constructed is, for example, formed of cloth.

[0066] The mounting portion 64 is formed in the shape of a strip, one end of which is fixed to the side of the bag body 63 and is closer to the other end of the bag body 63 than the first hole 65A and the second hole 65B. The other end of the mounting portion 64 is for mounting to the mounted portion 35.

[0067] The length from one end of the mounting portion 64 to the mounting portion 35 is less than both the length from one end of the mounting portion 64 to the first connecting portion 84 and the length from one end of the mounting portion 64 to the second connecting portion 93 when the sleeve structure 6 is contained within the bag body 63.

[0068] The mounting portion 64 includes, for example, a mounting portion body 66, which is formed in the shape of a strip; and a support portion 67, which is provided in the mounting portion body 66 and is supported on the mounted portion 35 by placing the mounted portion 35 inside it.

[0069] One end of the mounting body 66 in the longitudinal direction is fixed to the bag body 63 in a position where the width direction of the mounting body 66 is parallel to the width direction of the bag body 63. For example, one end of the mounting body 66 is fixed to the bag body 63 in the width direction from one end to the other.

[0070] Furthermore, the mounting body 66 is configured to rotate about a single axis parallel to the width direction of the mounting body 66. The mounting body 66 is flexible, for example, and rotates about the single axis by bending about the single axis parallel to the width direction of the mounting body 66.

[0071] The mounting body 66 thus constructed is, for example, made of fabric. One end of the mounting body 66 is fixed to the bag body 63, for example, by sewing.

[0072] The support portion 67 is formed as a cylinder with openings at both ends in the width direction of the mounting body 66. The support portion 67 is configured to house a part of the mounted portion 35 internally. The axial dimension of the support portion 67 is, for example, the same as or approximately the same as the length of the mounted portion 35.

[0073] The support portion 67 is configured to rotate relative to the mounted portion 35. The support portion 67, for example, has a size that allows it to rotate relative to the mounted portion 35 disposed inside. The support portion 67 is, for example, made of fabric. The support portion 67 is, for example, fixed to the mounting body 66 by sewing. The support portion 67 may also be configured, for example, by folding back and fixing the end of the mounting body 66.

[0074] The fixing part 62 is configured to fix the portion of the bag body 63 that is folded back and stacked at the shaft part 36. For example... Figure 4 As shown, the fixing part 62 is, for example, a hook and loop fastener.

[0075] The fixing part 62 includes, for example, a hook part 62a with multiple hooks and a ring part 62b with multiple loops. The hook part 62a is located at the other end of the bag body 63. The ring part 62b is located in the area of ​​the bag body 63 opposite to the hook part 62a when the bag body 63 is fastened to the wrist 200.

[0076] It should be noted that in the above example, the hook portion 62a and the ring portion 62b of the fixing part 62 are respectively formed in different areas on the surface of the bag body 63, but this is not a limitation. In other examples, the fixing part 62 may also be composed of multiple hooks and multiple rings arranged together in the same defined area.

[0077] The strap 4 thus formed is fixed by the fixing part 62 to the part where the other end of the bag body 63 is folded back at the shaft part 36 and stacked, thereby, as Figure 2 As shown, the band 4 and the main body 3 of the device together form a ring.

[0078] like Figure 2 As shown, the cuff structure 6 is housed within the belt 4. Figure 2 , Figure 3 , Figures 5 to 8 As shown, the cuff structure 6 includes, for example, a press cuff 71, a back plate 72, and a sensing cuff 73.

[0079] In the cuff construction 6, a back plate 72 is disposed on the pressing cuff 71, and a sensing cuff 73 is disposed on the back plate 72. In the cuff construction 6, the adjacent components are fixed together, for example, by a bonding layer 75. The bonding layer 75 is made of, for example, adhesive or double-sided tape.

[0080] The pressing sleeve 71 is configured as a strip extending in one direction. For example... Figure 6 and Figure 7 As shown, the compression cuff 71 includes, for example, a plurality of air bags 81 and a first connecting portion 84 connected to a first connected portion 38A of the device body 3. The first connecting portion 84 of the compression cuff 71 is connected to the first connected portion 38A, thereby the compression cuff 71 is fluidly connected to the pump 14.

[0081] Multiple air bags 81, for example, two air bags 81. Such a pressing cuff 71 is constructed by welding multiple sheet components 86 together.

[0082] Here, air bag 81 refers to a bag-shaped structure. In this embodiment, the blood pressure measuring device 1 is constructed by using air via a pump, hence the use of air bag in the description. However, when using a fluid other than air, the bag-shaped structure can be any fluid bag that expands through that fluid. Multiple air bags 81 are stacked and fluidly connected in the stacking direction.

[0083] The air bag 81 is formed into a rectangular bag shape that is elongated in one direction. The air bag 81 is formed, for example, by combining two sheet members 86, as in... Figure 6 As shown in the figure, the welded part 81a is formed by using heat to weld it into a rectangular frame that is long in one direction.

[0084] The first connecting portion 84 is configured, for example, to protrude outward from the air bag 81. Specifically, the first connecting portion 84 is provided on the air bag 81, which is opposite to the bottom wall portion 34 of the housing 11 separated by the strap 4. The top end of the first connecting portion 84 protrudes from the sheet member 86 on the device body 3 side of the two sheet members 86 constituting the air bag 81.

[0085] A first connecting portion 84 is disposed in a first hole 65A of the bag body 63. The first connecting portion 84 is connected to the first connected portion 38A, for example, by being inserted into the first connected portion 38A. The first connecting portion 84 is connected to the first connected portion 38A, thereby pressing the cuff 71 into fluid connection with the pump 14.

[0086] The fixing of the first connecting part 84 and the first connected part 38A can be achieved by a fixing with the following holding force: the connection between the first connecting part 84 and the first connected part 38A will be maintained when measuring blood pressure, and the connection between the first connecting part 84 and the first connected part 38A will be maintained even when the blood pressure measuring device 1 is removed from the wrist 200.

[0087] like Figure 5 and Figure 6 As shown, the back plate 72 is formed as a plate that extends in one direction. The back plate 72 is attached to the outer surface of the first sheet member 86a of the pressing cuff 71 via the bonding layer 75. The back plate 72 transmits the pressing pressure from the pressing cuff 71 to the main surface of the sensing cuff 73 on the back plate 72 side while following the shape of the wrist 200.

[0088] The backplate 72 has shape following capability. Here, shape following capability refers to the function of the backplate 72 to deform in a way that conforms to the shape of the contacted part of the wrist 200, which is the area of ​​the wrist 200 opposite to the backplate 72. The contact here includes both direct contact and indirect contact through the sensing cuff 73.

[0089] For example, such as Figure 6 As shown, the back plate 72 has a plurality of grooves 72a extending in a direction orthogonal to the longitudinal direction of the back plate 72 on its two main surfaces. The plurality of grooves 72a provided on the two main surfaces are, for example, opposite each other in the thickness direction of the back plate 72. As for the back plate 72, compared with the parts without grooves 72a, the parts with multiple grooves 72a are thin-walled, and thus the parts with multiple grooves 72a are easy to deform. Therefore, the back plate 72 has a shape following property that conforms to the shape of the wrist 200 and extends circumferentially along the wrist 200.

[0090] The sensing cuff 73 is fixed to the main surface of the back plate 72 on the wrist 200 side via the bonding layer 75. The length of the sensing cuff 73 in the longitudinal direction is set to the length that contacts the area where at least one of the radial artery 211 and ulnar artery 212, which are arteries 210 of the wrist 200, is located.

[0091] The sensing cuff 73 is formed, for example, in the same shape as or smaller than the back plate 72 in both the longitudinal and width directions. The sensing cuff 73 compresses the area of ​​the palmar side of the wrist 200 where the artery 210 is located by expansion. The sensing cuff 73 is pressed towards the wrist 200 side by the expanded pressing cuff 71 through the back plate 72.

[0092] The sensing cuff 73 has a second connecting portion 93, which is connected to the second connected portion 38B, thereby the sensing cuff 73 is fluidly connected to the pump 14.

[0093] like Figures 5 to 7 As shown, the sensing cuff 73 includes, for example, an air bag 91, a flow path 92 communicating with the air bag 91, and a second connecting portion 93 located at the top of the flow path 92. Regarding the sensing cuff 73, one main surface of its air bag 91 is fixed to the back plate 72 via a bonding layer 75. For example, the sensing cuff 73 is bonded to the main surface of the back plate 72 on the wrist 200 side via the bonding layer 75. Such a sensing cuff 73 is constructed by fusing two sheet members 96 together.

[0094] Here, air bag 91 refers to a bag-shaped structure. In this embodiment, the blood pressure measuring device 1 is constructed by using air through a pump, so an air bag is used for explanation. However, when using a fluid other than air, the bag-shaped structure can be any fluid bag that expands through the fluid.

[0095] The air bag 91 is configured as a rectangle that extends in one direction. The air bag 91 is, for example, formed by combining two sheet members 96 that extend in one direction, as shown in... Figure 7 As shown in the figure, the welded section 91a is formed by using heat to weld it into a rectangular frame that is long in one direction.

[0096] The flow path body 92 is integrally formed with a portion of the edge of the air bag 91 along its longitudinal direction. Specifically, the flow path body 92 is located at the end of the air bag 91 near the device body 3. Furthermore, the flow path body 92 is formed with a width smaller than the width of the air bag 91 in its short-length direction, and is elongated in one direction, with a circular top end. The flow path body 92 has a second connecting portion 93 at its top end. The flow path body 92 is connected to the flow path portion via the second connecting portion 93, forming a flow path between the flow path portion of the device body 3 and the air bag 91.

[0097] The flow path 92 is constructed by using heat to weld a portion of the sheet member 96 adjacent to the area constituting the air bag 91 of the sheet member 96 into a frame shape that is elongated in one direction, with a second connecting portion 93 disposed between the two sheet members 96. It should be noted that the air bag 91 is fluidly connected to the flow path 92 by configuring the air bag 91 as follows: a portion of the weld portion 91a that welds the two sheet members 96 in a rectangular frame shape is not welded, so as to be continuous with the weld portion 92a constituting the flow path 92.

[0098] The second connecting portion 93 is configured, for example, to protrude outward from the air bag 91. The second connecting portion 93 is located at the top of the flow path body 92. Furthermore, the top of the second connecting portion 93 is exposed outward from the sheet member 96 opposite the back plate 72 of the two sheet members 96 constituting the flow path body 92.

[0099] The second connecting portion 93 is disposed in the second hole 65B of the bag body 63. The second connecting portion 93 is connected to the second connected portion 38B, for example, by being inserted into the second connected portion 38B. The second connecting portion 93 is connected to the second connected portion 38B, thereby sensing the fluid connection between the cuff 73 and the pump 14.

[0100] The fixation of the second connecting part 93 and the second connected part 38B can be achieved by a fixation with the following holding force: the connection between the second connecting part 93 and the second connected part 38B will be maintained during blood pressure measurement, and the connection between the second connecting part 93 and the second connected part 38B will be maintained even when the blood pressure measuring device 1 is removed from the wrist 200.

[0101] The cuff structure 6 thus configured has a configuration in which the second connecting portion 93 of the sensing cuff 73 is positioned on the side of the first connecting portion 84 of the pressing cuff 71 in the thickness direction of the cuff structure 6. As an example of this configuration, such as... Figure 6 As shown, the compression cuff 71 has an insertion portion 71a in its longitudinal direction, for example, its central part, for arranging a portion of the sensing cuff 73. The insertion portion 71a is configured, for example, to be recessed in the short-length direction of the compression cuff 71 from a portion of its edge along its longitudinal direction. The insertion portion 71a is configured to allow the flow path 92 of the sensing cuff 73 to pass through from the inner circumferential surface of the compression cuff 71 towards the device body 3. It should be noted that the insertion portion 71a is not limited to a shape where a portion of the edge along its longitudinal direction is recessed in the short-length direction. In other examples, the insertion portion 71a may also be a hole for arranging the second connecting portion 93. Alternatively, the insertion portion 71a may also be configured to allow the flow path 92 to extend beyond the edge along the longitudinal direction of the compression cuff 71 towards the first connecting portion 84.

[0102] Next, as Figure 9 As shown, an example of a user wearing the blood pressure measuring device 1 on their wrist 200 is illustrated.

[0103] First, the user peels the hook 101 fixed to the ring 102 from the ring 102, pulls the bag 63 out from between the shaft 36 and the contour shell 31, and adjusts the annular space formed by the bag 63 and the device body 3 to a size that can be inserted into the wrist 200.

[0104] Next, the user inserts their wrist 200 into the annular space formed by the bag 63 and the device body 3.

[0105] Next, the user moves the blood pressure measuring device 1 relative to the wrist 200 to align the sensing cuff 73 with the area where the artery is located on the wrist 200.

[0106] Next, the user tightens the bag 63 by stretching, for example, the end of the bag 63 on the side of the hook 101, and presses the sensing cuff 73 onto the area of ​​the artery on the wrist 200, and fixes the hook 101 to the loop 102. The blood pressure measuring device 1 is then worn on the wrist 200 through this process.

[0107] In the blood pressure measuring device 1 configured in this way, the cuff structure 6 is housed in the bag 63 of the belt body 61 of the belt 4. Furthermore, the bag 63 does not obstruct the expansion of the cuff structure 6. In addition, the bag 63 presses the cuff structure 6 against the wrist 200 while it is wrapped around the wrist 200 and fixed by the fixing part 62.

[0108] Therefore, when the blood pressure measuring device 1 is worn on the wrist 200, even if the cuff structure 6 moves axially relative to the bag 63 on the wrist 200, the cuff structure 6 can still be properly pressed against the wrist 200 because it is housed in the bag 63. As a result, the accuracy of blood pressure measurement can be improved.

[0109] Furthermore, the cuff structure 6 is fluidly connected to the pump 14 via the connection of the connecting portions 84 and 93 to the connected portions 38A and 38B, and is mechanically mounted to the device body 3 via the mounting portion 64 of the belt 4 to the mounted portion 35 of the device body 3. Therefore, the fixing of the connecting portions 84 and 93 to the connected portions 38A and 38B only requires a holding force sufficient to maintain the fluid connection between the cuff structure 6 and the pump 14, eliminating the need for a configuration that directly mounts the cuff structure 6 to the device body 3. This simplifies the configuration of the blood pressure measuring device 1. Therefore, for example, the connecting portions 84 and 93 and the connected portions 38A and 38B can be configured in a simple way, where the connecting portions 84 and 93 are connected to the connected portions 38A and 38B simply by inserting the connecting portions 84 and 93 into the connected portions 38A and 38B.

[0110] Furthermore, the length from the end of the mounting portion 64 fixed to the bag body 63 to the mounted portion 35 is shorter than the length from both ends of the mounting portion 64 fixed to the bag body 63 to the connecting portions 84 and 93. Therefore, when the blood pressure measuring device 1 is worn on the wrist 200, even if the bag body 63 is stretched by the user, the stretching force will not act between one end of the bag body 63 and one end of the mounting portion 64. Therefore, the connecting portions 84 and 93 will not be pressed by the edges of the holes 65A and 65B of the bag body 63, and thus the connecting portions 84 and 93 will not press the connected portions 38A and 38B in a direction intersecting the direction in which the connecting portions 84 and 93 protrude.

[0111] Furthermore, the connecting parts 84 and 93 are configured such that one part is inserted into the other, and the connected parts 38A and 38B are connected in a manner that allows the connecting parts 84 and 93 to be easily connected to the connected parts 38A and 38B.

[0112] Furthermore, since the connected portions 38A and 38B are located on the wrist 200 side of the housing 11, the movement of the connected portions 84 and 93 in the direction of being pulled out from the connected portions 38A and 38B is restricted by the wrist 200 when the blood pressure measuring device 1 is worn on the wrist 200.

[0113] Therefore, the holding force that maintains the state in which the connecting parts 84 and 93 are inserted into the connected parts 38A and 38B can also be a holding force that prevents the connecting parts 84 and 93 from falling off the connected parts 38A and 38B when the blood pressure measuring device 1 is removed from the wrist 200.

[0114] Furthermore, the mounting body 66 is flexible, thus increasing the movable area of ​​the spring rod 35. Therefore, it facilitates the assembly and disassembly of the blood pressure measuring device 1 relative to the wrist 200.

[0115] Furthermore, by using a hook-and-loop fastener as a fixing part 62 to secure the bag body 63 wrapped around the wrist 200, the length of the bag body 63 of the blood pressure measuring device 1 along the circumference of the wrist 200 can be infinitely adjusted.

[0116] As described above, the blood pressure measuring device 1 according to this embodiment can provide a blood pressure measuring device 1 that can prevent the reduction of blood pressure measurement accuracy.

[0117] It should be noted that, in the above example, the use of a cloth-made belt 4 as an example for the blood pressure measuring device 1 is not a limitation. In other examples, the belt 4 may also be made of resin.

[0118] Furthermore, in the above example, the configuration in which the mounting part 64 is removed from the device body 3 by removing the mounting part 35 from the device body 3 has been described as an example, but it is not limited to this. In other examples, the mounting part 64 may also be configured to be detachably mounted to the mounting part 35. For example, as... Figure 10 As shown in the modified example, the support portion 67 can also be constructed by folding back the end of the mounting body 66 on the device body 3 side and fixing the folded-back portion to other parts of the mounting body 66 by means of a detachable fixing portion 69 such as a button. Regarding the fixing portion 69, in addition to using a button, a hook-and-loop fastener can also be used, for example.

[0119] By configuring the support portion 67 in this way, when removing the strap 4 from the device body 3, the bag body 63 can be removed from the device body 3 by releasing the fixation achieved by the detachable fixing portion 69, without having to remove the mounting portion 35 from the pair of first ears 37A. Therefore, the efficiency of the removal and installation operation of the strap 4 relative to the device body 3 can be improved.

[0120] In addition, such as Figure 11 As shown in the modified example, the blood pressure measuring device 1 can also be further configured to include a retaining ring 5. The retaining ring 5 is configured as a strip that is separated at one end and curved circumferentially to conform to the wrist 200. A cuff structure 6 is disposed on the inner circumferential surface of the retaining ring 5. The retaining ring 5 holds a portion of the cuff structure 6 along the shape of the inner circumferential surface of the retaining ring 5. The retaining ring 5 is accommodated within the band 4.

[0121] For example, the retaining ring 5 secures the cuff structure 6 by means of a bonding layer provided between the retaining ring 5 and the cuff structure 6, thereby holding the cuff structure 6 in place. The retaining ring 5 has a hole for accommodating the first connecting portion 84 and a hole for accommodating the second connecting portion 93.

[0122] Furthermore, the retaining ring 5 possesses both flexibility and shape retention. Here, flexibility refers to the radial deformation of the shape when an external force based on the band 4 is applied to the retaining ring 5. For example, flexibility means that when the retaining ring 5 is pressed by the band 4, its shape, when viewed from the side, deforms in a manner close to, along, or conforming to the shape of the wrist 200. Furthermore, shape retention means that the retaining ring 5 can maintain its pre-shaped form when no external force is applied. For example, in this embodiment, shape retention means that the shape of the retaining ring 5 can maintain a shape that bends along the circumference of the wrist 200.

[0123] Furthermore, in the above example, the configuration in which the connecting portions 84 and 93 are formed as protruding protrusions is described as an example, but it is not limited to this. For example, it may also be configured such that the connected portions 38A and 38B formed on the device body 3 are formed in a shape that protrudes from the bottom wall portion 34, and the connecting portions 84 and 93 are formed as holes, so that the connecting portions 84 and 93 are connected to the connected portions 38A and 38B by inserting the connected portions 38A and 38B into the connecting portions 84 and 93.

[0124] Furthermore, in the above example, the configuration in which the strap 4 is folded back at the shaft portion 36 and fixed by the fixing portion 62 is described as an example, but it is not limited to this. In other examples, the strap may be configured to have strap members that are respectively fixed to the outer peripheral surface of the device body 3 at circumferentially symmetrical positions, and these strap members are connected to each other, for example, by a snap fastener, using the bag body 63 and the mounting portion 64 as one of the strap members of the strap.

[0125] Furthermore, in the above examples, the configuration where one of the connecting parts 84 and 93 and the connected parts 38A and 38B is inserted into the other is described as an example where the connecting parts 84 and 93 are protruding and inserted into the connected parts 38A and 38B, but this is not a limitation. In other examples, the connected parts 38A and 38B may also be inserted into the connecting parts 84 and 93.

[0126] That is, the present invention is not limited to the above-described embodiments, and various modifications can be made during the implementation phase without departing from its spirit. Furthermore, the embodiments can be implemented in appropriate combinations as much as possible, in which case the combined effect can be obtained. Moreover, the inventions in the above embodiments, which include various stages, can be derived from appropriate combinations of the disclosed constituent elements. For example, if the problem can be solved and the effect obtained even if some constituent elements are deleted from all the constituent elements shown in the embodiments, the configuration with the deleted constituent element can be extracted as an invention.

[0127] Explanation of reference numerals in the attached figures

[0128] 1: Blood pressure measuring device;

[0129] 3: Main body of the device;

[0130] 4: with;

[0131] 5: Card ring;

[0132] 6: Cuff construction;

[0133] 7: Installation Department;

[0134] 8: Fixing part;

[0135] 11: Shell;

[0136] 12: Display section;

[0137] 13: Operations Department;

[0138] 14: Pump;

[0139] 31: Outline shell;

[0140] 32: Windshield;

[0141] 33: Main body of the shell;

[0142] 34: Bottom wall;

[0143] 34a: Outer surface;

[0144] 35: The part to be installed;

[0145] 36: Shaft;

[0146] 37: ear;

[0147] 37A: First ear;

[0148] 37B: Second ear;

[0149] 38: Connected part;

[0150] 38A: First connected part;

[0151] 38B: Second connected part;

[0152] 41: Button;

[0153] 61: With main body;

[0154] 62: Fixing part;

[0155] 62a: Hook;

[0156] 62b: Ring section;

[0157] 63: Bag body;

[0158] 64: Installation Department;

[0159] 65: Hole;

[0160] 65A: First hole;

[0161] 65B: Second hole;

[0162] 66: Main body of the installation unit;

[0163] 67: Support part;

[0164] 69: Fixing part;

[0165] 71: Press the cuff;

[0166] 71a: Insertion part;

[0167] 72: Back panel;

[0168] 72a: slot;

[0169] 73: Sensing cuff;

[0170] 75: Bonding layer;

[0171] 81: Air bag;

[0172] 81a: Welded section;

[0173] 81b: Bridging weld;

[0174] 84: Connecting part;

[0175] 86: Sheet components;

[0176] 91: Air bag;

[0177] 91a: Welded section;

[0178] 92: Flow path body;

[0179] 92a: Welded section;

[0180] 93: Connecting part;

[0181] 96: Sheet components;

[0182] 101: Hook;

[0183] 102: Ring section;

[0184] 200: Wrist;

[0185] 210: Artery;

[0186] 211: Radial artery;

[0187] 212: Ulnar artery.

Claims

1. A blood pressure measuring device, which is worn on a user's wrist, wherein, have: The housing has a housing body, a mounting portion, a shaft portion, and a connecting portion. The mounting portion is located on one side of the outer peripheral surface of the housing body in a circumferentially symmetrical position, the shaft portion is located on the other side, and the connecting portion is located on the wrist side of the housing body. The pump is housed within the housing body and is fluidly continuous with the connected portion; A cuff, having a connecting portion located at a position opposite to the wrist side of the housing body and connected to the connected portion, the cuff being fluidly connected to the pump via the connecting portion; and The cuff has a bag body, a mounting portion, and a fixing portion. The bag body internally accommodates the cuff and is a band that wraps around the wrist. A hole is formed at one end in the longitudinal direction for the connection portion to be disposed. One end of the mounting portion is fixed to the one end of the bag body and is closer to the other end than the hole. The other end of the mounting portion is mounted to the mounted portion. The length from the one end to the mounted portion is shorter than the length from the one end to the connection portion disposed in the hole. The fixing portion is provided in the bag body to fix the part of the bag body that is folded back and stacked at the axial portion.

2. The blood pressure measuring device according to claim 1, wherein, The connected part and the connecting part are configured such that one is inserted into the other.

3. The blood pressure measuring device according to claim 1, wherein, The mounting part is flexible.

4. The blood pressure measuring device according to claim 2, wherein, The bag body and the mounting part are made of cloth.

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