Cuff and blood pressure measuring device

Abstract

A cuff for measuring blood pressure by being wound around a portion to be measured, the cuff being characterized by being provided with: a bag-shaped exterior portion having a circumferential direction, which is the direction in which the cuff is wound around the portion to be measured, and a width direction, which is the direction orthogonal to the circumferential direction, the width direction being the direction in which the cuff is wound around the portion to be measured; the outer side surface becomes the outer side when the cuff is worn, and the inner side surface becomes the inner side when the cuff is worn; a fluid bag accommodated in the exterior part; and a shackle fastener which is provided on the surface of the exterior part and which is provided with scales for dividing the exterior part in the circumferential direction on the surface of the exterior part, the cuff being configured so as to be able to determine where a prescribed site of the cuff is located at the scales when the cuff is worn.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of measuring blood pressure of a living body, and particularly to a cuff for a blood pressure measuring device. BACKGROUND

[0002] In recent years, cases where information related to a person's body and health, such as a blood pressure value, is measured by a measuring device, the measurement result is recorded and analyzed, and health management is thereby performed, are becoming widespread. Also, various devices such as a home-use blood pressure measuring device are provided to enable such living body information measurement to be easily performed outside medical institutions such as homes.

[0003] In a general blood pressure measuring device, a cuff for compressing a blood vessel is used in order to measure a blood pressure value by detecting a pulse wave propagating in a blood vessel by compressing the blood vessel. Specifically, on the basis of the cuff being wound around a measurement site (for example, an upper arm), a fluid bag inside the cuff is caused to flow with air, and the wound cuff is thereby inflated, whereby the blood vessel of the measurement site is compressed.

[0004] Therefore, various proposals have been made for a cuff for blood pressure measurement in order to easily wind the cuff around a measurement site and reduce discomfort when worn (Patent Literature 1, Patent Literature 2, etc.).

[0005] PRIOR ART DOCUMENTS

[0006] PATENT LITERATURE

[0007] Patent Literature 1: Japanese Patent Application Laid-Open No. 2002-209858

[0008] Patent Literature 2: Japanese Patent Application Laid-Open No. 2014-018260 SUMMARY

[0009] PROBLEMS TO BE SOLVED BY THE INVENTION

[0010] However, in order to obtain a correct measurement value, the cuff needs to be worn correctly, and measurement needs to be performed in a correct measurement posture. Also, when blood pressure is continuously measured for health management, it is important that the conditions at the time of blood pressure measurement every day do not change (as much as possible, do not change).

[0011] That is, if the wearing method of the cuff (winding strength, orientation of the cuff, etc.) differs every time measurement is performed, not only will the conditions in each measurement not be constant, and accurate blood pressure measurement can not be performed, but also the significance of continuously measuring blood pressure values (storing data) will be lost. However, the prior art including the above-described patent literatures cannot assist a user to wear the cuff every time in the same method.

[0012] The present application was made in view of the circumstances as described above, and has an object to provide a technique capable of wearing a cuff in an appropriate winding manner every time when blood pressure is measured.

[0013] Solution for solving the problem

[0014] To solve the above problem, the present application adopts the following configuration. That is,

[0015] A cuff to be wound around a measurement site for blood pressure measurement, characterized by comprising:

[0016] the cuff includes: an outer member in a bag shape, having a circumferential direction as a winding direction to the measurement site and a width direction as a direction orthogonal to the circumferential direction, and having an outer surface as an outer side when the cuff is worn and an inner surface as an inner side (a surface where an area in contact with the measurement site when the cuff is wound is located); a fluid bag accommodated in the outer member; and a hook-and-loop fastener provided on a surface of the outer member,

[0017] a scale that divides the circumferential direction of the outer member is provided on the surface of the outer member,

[0018] the cuff is configured to be able to determine where a prescribed portion of the cuff is located on the scale when the cuff is worn.

[0019] Note that the scale described herein does not necessarily need to be represented by a line, for example, and can be a mark that functions as an indicator that divides the length of the circumferential direction of the cuff into a plurality of stages, such as a dot, a symbol, a figure, a character, and the like. In addition, the scale can not represent an actual length.

[0020] According to such a configuration, a cuff that can be worn with the same winding degree every time without the need to add a new component (at low cost) can be provided.

[0021] In addition, the scale can be provided in a region including a central portion in the width direction, or in a region including at least one end portion in the width direction.

[0022] In addition, the scale can be provided in a region including both end portions in the width direction, respectively,

[0023] an indicator that indicates the position of each scale is provided on the outer member.

[0024] For example, when the cuff is worn on the upper arm, the length of the girth differs (has a taper) at both ends in the width direction of the cuff (i.e., the upper side and the lower side of the arm), so the degree of winding differs at both ends in the width direction when the cuff is properly worn. In this regard, if configured as described above, different appropriate scales can be shown at both ends in the width direction of the cuff, so appropriate alignment can be performed at both ends in the width direction even in the case of having a taper.

[0025] Further, it can also be that the mark indicating the scale of one end in the width direction and the mark indicating the scale of the other end in the width direction are provided to differ in position in the circumferential direction in reflection of the taper of the measured portion in the width direction. If configured in this way, it is also possible to show scales indicating the same scale on the basis of reflecting the difference in the circumference at the time of winding of the measured portion at both ends in the width direction due to the taper.

[0026] Further, it can also be that the cuff further has a folding ring for passing through and folding back an outer side end portion that is one end in the circumferential direction of the outer cover portion and that is exposed to the outside at the time of wearing of the cuff, the scale is provided to the inner side surface, and the prescribed portion is a folded back portion of the outer cover portion at the time of wearing of the cuff.

[0027] If configured in this way, in a cuff in which either of the hook and the loop of a hook-and-loop fastener is formed on the outer side surface among the inner side surface and the outer side surface of the outer cover portion (so-called folding type), the position of the folded back portion, in which the error in the winding of the outer side end portion that is firmly fixed and folded back for proper wearing is small, can be used as a reference to determine the positional relationship with the scale.

[0028] Further, it can also be that a thimble having elasticity that assists in maintaining the cuff in a loop shape is further housed in the outer cover portion, the scale is provided to the outer side surface, and the prescribed portion is the circumferential end portion of the outer cover portion that is exposed to the outside at the time of wearing of the cuff. That is, a scale indicating where the outer cover portion of the worn cuff is doubly wound can be provided to the outer side surface of the outer cover portion.

[0029] Further, it can also be that a thimble having elasticity that assists in maintaining the cuff in a loop shape is further housed in the outer cover portion, the scale is provided to the outer side surface, and the prescribed portion is the circumferential end portion of the outer cover portion that is exposed to the outside at the time of wearing of the cuff. That is, a scale indicating where the outer cover portion of the worn cuff is doubly wound can be provided to the outer side surface of the outer cover portion.

[0030] If configured in this way, even in a cuff of the type in which a thimble is further housed in the outer cover portion, the wound state of the cuff at the time of proper wearing can be repeatedly reproduced.

[0031] Further, the present application can also be considered as a blood pressure measuring apparatus having the cuff as described above and a sphygmomanometer main body connected to the cuff.

[0032] Note that the above-described configurations can be combined with each other to constitute the present application, provided that no technical contradiction occurs.

[0033] Effects of the Invention

[0034] According to the present application, a technique can be provided in which the cuff is worn in an appropriate winding manner every time when blood pressure is measured. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 (A) of FIG. 1 is a schematic plan view showing an outer side of a face of the cuff of Example 1. Figure 1 (B) of FIG. 1 is a schematic plan view showing an inner side of a face of the cuff of Example 1.

[0036] Figure 2 (A) of FIG. 2 is a first explanatory view showing a use plan of the cuff of Example 1. Figure 2 (B) of FIG. 2 is a schematic diagram showing a tape measure used with the cuff of Example 1.

[0037] Figure 3 (B) of FIG. 3 is a schematic diagram showing a state in which the cuff of Example 1 is worn.

[0038] Figure 4 (B) of FIG. 4 is a schematic diagram showing a state in which the cuff of the modification of Example 1 is worn.

[0039] Figure 5 (B) of FIG. 4 is a schematic diagram showing a state in which the cuff of the modification of Example 1 is worn.

[0040] Figure 6 (A) of FIG. 5 is a schematic plan view showing an outer side of a face of the cuff of Example 2. Figure 6 (B) of FIG. 5 is a schematic plan view showing an inner side of a face of the cuff of Example 2.

[0041] Figure 7 (A) of FIG. 6 is a schematic diagram showing a grommet for the cuff of Example 2. Figure 7 (B) of FIG. 6 is a schematic diagram showing a state in which the cuff of Example 2 is worn.

[0042] Figure 8 (A) of FIG. 7 is a schematic plan view showing an outer side of a face of the cuff of Example 3. Figure 8 (B) of FIG. 7 is a schematic plan view showing an inner side of a face of the cuff of Example 3.

[0043] Figure 9 (B) of FIG. 7 is a schematic diagram showing a state in which the cuff of Example 3 is worn. (B) of FIG. 7 is a schematic diagram showing a state in which the cuff of Example 3 is worn.

[0044] Figure 10 (A) of FIG. 1 is a schematic plan view of a surface on the outer side of the cuff of Example 4. Figure 10 (B) of FIG. 1 is a schematic plan view of a surface on the inner side of the cuff of Example 4.

[0045] Figure 11 is a schematic view showing a state in which the cuff of Example 4 is worn. DETAILED DESCRIPTION

[0046] <Example 1>

[0047] Hereinafter, specific examples of the present application will be described based on the drawings. However, regarding the material, shape, relative arrangement, and the like of each component described in the present examples, it is not meant that the scope of the present application is limited to only this unless specifically described.

[0048] The present application can be applied, for example, to a blood pressure measuring device such as Figure 1 (A) of FIG. 1, Figure 1 (B) of FIG. 1, Figure 2 (A) of FIG. 1. Figure 1 (A) of FIG. 1 is a view of a surface (outer side surface 11) on the outer side when worn, viewed from above the cuff 1, Figure 1 (B) of FIG. 1 is a view of a surface (inner side surface 12) on the inner side when worn, viewed from above the cuff 1. As shown in Figure 1 (A) of FIG. 1 and Figure 1 (B) of FIG. 1, the cuff 1 has a bag-shaped outer cover portion 10 having an outer side surface 11 and an inner side surface 12, and a fluid bag 13 (indicated by a broken line in Figure 1 (A) of FIG. 1) is housed inside the outer cover portion 10.

[0049] A hook portion 112 and a loop portion 113 of a hook-and-loop fastener are formed on the outer side surface 11 of the outer cover portion 10. In the present example, the loop portion 113 of the hook-and-loop fastener is formed over the entire area of the outer side surface 11. Further, as shown in Figure 1 (A) of FIG. 1, a pipe joint 114 for performing suction / exhaustion of the fluid bag 13 is formed on the outer side of the outer cover portion 10. By connecting the pipe joint 114 with a sphygmomanometer main body (not shown) provided with a pump with a tube (not shown), suction / exhaustion of the fluid bag 13 can be performed.

[0050] Further, on the outer side of the outer cover portion 10, a circumferential direction (in Figure 1In the vicinity of one end portion of the cuff 1 (indicated by the left-right direction in (A)), a return loop 111 is provided through which the other end portion is inserted. When the cuff 1 is worn on the measurement site, the other end portion of the outer member 10 is inserted through the return loop 111 and is returned, and the hook portion 112 of the outer surface 11 is engaged with the loop portion 113, whereby the cuff 1 is fixed to the measurement site.

[0051] On the other hand, on the inner surface 12 of the outer member 10, a scale 121 is provided, for example, by printing, which divides the circumference of the cuff 1. As shown in Figure 1

[0052] Figure 2 (A) is a schematic view showing a state in which the other end portion of the outer member 10 is returned on the basis of being inserted through the return loop 111. Further, Figure 3 (B) is a schematic view showing a state in which the cuff 1 is worn on the upper arm of a user. As shown in Figure 2 (A) or Figure 3 As shown in (A) or (B), the scale 121 is exposed to the outside, and thus it is possible to show, by the scale 121, where the portion of the outer member 10 that is returned through the return loop 111 (the returned portion 14) is located in the circumference thereof.

[0053] Further, when the user wears the cuff 1 on the measurement site, the cuff 1 is wound so that the returned portion 14 comes to the same scale, and is fixed, and thus it is possible to prevent the degree of winding of the cuff from being different (tight or loose) each time blood pressure is measured.

[0054] Note that which scale the returned portion 14 is located in is appropriate winding of the cuff 1 (degree of winding) that differs depending on the user, and thus the user needs to individually grasp the correct relationship between the returned portion 14 and the scale corresponding thereto. In this case, a dedicated tape measure formed of paper, a resin sheet, or the like can be used to measure the circumference of the surroundings of the measurement site (for example, the arm circumference of the upper arm), and the scale for positioning when the cuff 1 is worn can be grasped on the basis of the measurement result. Figure 2 (B) shows such a dedicated tape measure 15.

[0055] On the tape measure 15, a scale 151 corresponding to the scale 121 provided on the outer member 10 of the cuff 1 is provided, and the value shown by the black arrow in Figure 2 (B) shown in (B) is the value shown by the black arrow in Figure 2 ​In example (B), the scale corresponding to "6") on the cuff 1 becomes a scale indicating the position of the folded portion 14 when performing the correct winding method. Users only need to measure the circumference of the measured portion using the ruler 15 at appropriate intervals when using the cuff 1 for the first time. It should be noted that the scale 151 on the ruler 15 is not proportional to the scale 121 on the cuff 1, and thus reflects the respective thickness of the scale.

[0056] By using the above method, the correct winding method (degree of winding) of the cuff 1 can be repeatedly reproduced. This allows for the continuous acquisition of accurate measurement data.

[0057] (Modified example)

[0058] It should be noted that in the above embodiment 1, each scale is provided in a manner that traverses the width direction of the outer part 10 (i.e., in the region including the central part in the width direction). However, the scale arrangement is not limited to the arrangement shown in the above embodiment 1. Figure 4 , Figure 5 Such a variation is shown in the figure. It should be noted that the same reference numerals are used below for the same components as in the already described embodiments, and detailed descriptions are omitted again. Figure 4 This is a schematic diagram showing the state in which one end of the cuff 100 of this modified example is folded back using the fold-back loop 111. Figure 5 This is a diagram showing the state of the cuff 100 being worn on the user's upper arm.

[0059] like Figure 4 As shown, in this modified example of the cuff 100, it is configured such that scales 141 are provided at both ends in the width direction. Furthermore, as... Figure 5 As shown, with the cuff 100 worn on the user's upper arm, the difference in arm circumference between the side of the arm closer to the shoulder (upper side) and the side closer to the wrist (lower side) is reflected, and one scale on the width direction of the folded portion 14 has a different value than the other. Figure 5 In the example, the scale at the end of the cuff 100 located on the lower side of the arm in the width direction is a smaller value than the scale located on the upper side.

[0060] In this modified example, ideally, the circumference of the portion to be measured is measured in advance using a ruler 15, matching the position of each end of the cuff in the width direction. In this way, the folded portion 14 can be positioned according to the difference in circumference between the two ends of the cuff in the width direction, matching the appropriate scale.

[0061] <Example 2>

[0062] Next, based on Figure 6 (A) Figure 6 of (B), Figure 7 of (A), Figure 7 of (B) describes the cuff 2 of other embodiments. Figure 6 of (A) is a view of the cuff 2 from above, which is the face (outer face 21) that becomes the outer side when worn, Figure 6 of (B) is a view of the cuff 2 from above, which is the face (inner face 22) that becomes the inner side when worn. As Figure 6 of (A) and Figure 6 of (B) show, the cuff 2 is also configured, as with the cuff 1 of Embodiment 1, so that a fluid bag (not shown) and a later-described collar 23 are housed inside the bag-shaped outer cover portion 20 having the outer face 21 and the inner face 22.

[0063] A hook portion 213 of a hook-and-loop fastener made of a hook and a loop is formed on the outer face 21 of the outer cover portion 20, and a loop portion 221 of the hook-and-loop fastener is formed on the inner face 22 of the outer cover portion 20. Thus, when the cuff 2 is worn, the cuff 2 is wound in such a way that the loop portion 221 covers the hook portion 213, and as a result, the hook portion 213 and the loop portion 221 are fixed. Furthermore, a pipe joint 214 for performing inhalation / exhalation of the fluid bag is formed on the outer side of the outer cover portion 20.

[0064] Also, a scale 211 and a mark 212 for indicating the scale are provided on the outer face 21 of the outer cover portion 20. In this embodiment, in addition to the scale, a display indicating the circumference of a measured portion (for example, the upper arm) is also provided.

[0065] In the cuff 2, the collar 23 shown in Figure 7 of (A) is housed inside the outer cover portion 20 on the side closer to the outer face 21 than the fluid bag. The collar 23 is formed of an elastic member such as a resin plate, and has a shape in which one end portion 231 is wound inside and the other end portion 232 is extended to the outside. By housing such a collar 23 inside the outer cover portion 20, the cuff 2 is brought into a state in which the portion in which the collar 23 is housed is stressed in such a way as to become ring-shaped, and when the cuff 2 is worn, it is possible to support the maintenance of the state in which the cuff 2 is wound.

[0066] Next, the scale 211 and the mark 212 of the cuff 2 will be described based on Figure 7 of (B). Figure 7 of (B) is a schematic view indicating the state in which the cuff 2 is worn on the upper arm portion of a user. As Figure 7 of (B) shows, when the cuff 2 is worn on the upper arm portion, the end portion of the side of the outer face 21 on which the scale 211 is provided is disposed on the outermost side. Thus, when the cuff 2 is worn, the mark 212 provided near the other end portion of the cuff 2 indicates the scale corresponding to the arm circumference length of the upper arm on which the cuff 2 is wound.

[0067] According to the configuration as described above, even with the cuff 2 of the type in which the grommet 23 is built in, the user can always wear the cuff 2 in the same winding manner (winding degree) by wearing the cuff 2 in such a manner that the positional relationship of the scale 211 and the mark 212 is always consistent.

[0068] <Embodiment 3>

[0069] Next, based on Figure 8 (A) of (A), Figure 8 (B) of (A), Figure 9 Further description will be given of the cuff 3 of other embodiments. Figure 8 (A) is a view of a face (outer face 31) of the cuff 3, which becomes an outer side when worn, viewed from above, Figure 8 (B) is a view of a face (inner face 32) of the cuff 3, which becomes an inner side when worn, viewed from above. Further, Figure 9 is a schematic view showing a state in which the cuff 3 is worn on the upper arm portion of the user. The cuff 3 of the present embodiment is also configured to house a fluid bag (not shown) and a grommet (not shown) inside the bag-shaped outer cover portion 30 having the outer face 31 and the inner face 32.

[0070] A hook portion 313 of a hook-and-loop fastener constituted by a hook and a loop is formed on the outer face 31 of the outer cover portion 30, and a loop portion 321 of the hook-and-loop fastener is formed on the inner face 32 of the outer cover portion 30. Thus, when the cuff 3 is worn, the cuff 3 is wound in such a manner that the loop portion 321 covers the hook portion 313, and as a result, the hook portion 313 and the loop portion 321 are fixed. Further, a pipe joint 314 for performing suction / exhaustion of the fluid bag is formed on the outer side of the outer cover portion 30.

[0071] On the outer face 31 of the outer cover portion 30, a scale 311a, a scale 311b are provided near one end portion side in the circumferential direction, and a mark 312a corresponding to the scale 311a, a mark 312b corresponding to the scale 311b are provided near the other end portion side. The marks 312a, 312b are provided at positions offset in the circumferential direction, reflecting the taper in the width direction of the measured portion when the cuff 3 is worn (i.e., the difference in the length of the arm circumference of the both end portions in the width direction of the cuff 3).

[0072] Further, as shown in (A) of (A), Figure 8 (B) of (A), Figure 8 (B) of (A), the outer cover portion 30 of the cuff 3 is tapered in such a manner that the width near where the scales 311a, 311b are provided tends to narrow toward the end portion in the circumferential direction. Thus, as shown in (A) of (A), Figure 9As shown, in a state where the cuff 3 is worn, the marks 312a, 312b are not obstructed and can indicate the scales 311a, 311b on the corresponding side, respectively. Also, as described above, the marks 312a, 312b are offset in the circumferential direction in reflection of the taper of the measurement portion in the width direction, and thus, in the actual wearing state of the cuff 3, the marks 312a, 312b indicate the same size of scale.

[0073] <Embodiment 4>

[0074] Next, based on Figure 10 (A) of (A), (B) of (B), and (C) of (C), Figure 10 (A) of (A), (B) of (B), and (C) of (C), Figure 11 Further, the cuff 4 of other embodiments will be described. Figure 10 (A) is a view of a face (outer face 41) of the cuff 4, which becomes the outer side when worn, viewed from above, Figure 10 (B) is a view of a face (inner face 42) of the cuff 4, which becomes the inner side when worn, viewed from above. Also, Figure 11 is a schematic view showing a state where the cuff 4 is worn on the upper arm portion of the user. The cuff 4 of the present embodiment is also configured to house a fluid bag (not shown) and a collar (not shown) in the inside of the bag-shaped outer cover portion 40 having the outer face 41 and the inner face 42, and a pipe joint 414 for performing intake / exhaust of the fluid bag is formed on the outside of the outer cover portion 40.

[0075] The ring portion 412 of the hook-and-loop fastener is formed on the outer face 41 of the outer cover portion 40, and the hook portion 421 of the hook-and-loop fastener is formed on the inner face 42 of the outer cover portion 40. When the cuff 4 is worn, the circumferential end portion on the side where the hook portion 421 is formed is wound and engaged with the ring portion 412, and thus the hook portion 421 and the ring portion 412 are fixed. Therefore, when the cuff 4 is worn, the circumferential end portion on the side where the hook portion 421 is formed is disposed at the outermost side (top end). Hereinafter, the circumferential end portion on the side where the hook portion 421 is formed will also be referred to as the top end portion 43.

[0076] Also, in the present embodiment, the scale 411 is provided on the ring portion 412 of the hook-and-loop fastener. Therefore, as Figure 11 shown, when the hook portion 421 and the ring portion 412 are engaged when the cuff 4 is worn, the top end portion 43 indicates the scale and is fixed. That is, when the user wears the cuff 4 on the measurement portion, the cuff 4 is wound and fixed in such a manner that the top end portion 43 always comes to the same scale position, and thus it is possible to prevent the situation where the degree of winding of the cuff differs (tight or loose) each time blood pressure measurement is performed.

[0077] <Other>

[0078] Note that the above-described embodiments are merely illustrative of the present application, and the present application is not limited to the above-described specific modes. The present application can be variously modified and combined within the scope of the technical idea thereof. For example, the indication indicating the scale in the above-described Embodiment 2 and Embodiment 3 can not be a dedicated indication, and a mark (for example, a mark for arterial alignment), a structure, or the like provided on the cuff for other purposes can be used as the indication.

[0079] Further, the mark described together with the scale is not limited to a number or an arm circumference length, and can be a symbol, a letter, or a figure. As long as the same part is aligned to the prescribed part each time, it is acceptable.

[0080] Further, in the above-described embodiments, the cuff worn on the upper arm is described as an example, but the cuff of the present application can use other parts (for example, a wrist, a thigh, or the like) as the measured part. Further, a blood pressure measuring device using the cuff described in each embodiment is of course included in the technical scope of the present application.

[0081] Explanation of Reference Numerals

[0082] 1, 2, 3, 4, 100: Cuff

[0083] 10, 20, 30, 40: Outer cover

[0084] 11, 21, 31, 41: Outer surface

[0085] 12, 22, 32, 42: Inner surface

[0086] 13: Fluid bag

[0087] 14: Folded-back part

[0088] 15: Scale

[0089] 23: Collar

[0090] 43: Top end part

[0091] 111: Folded-back ring

[0092] 112, 213, 313, 421: Hook part

[0093] 113, 221, 321, 412: Ring part

[0094] 114, 214, 314, 414: Tube joint

[0095] 121, 141, 211, 311a, 311b, 411, 151: Scale

[0096] 212, 312a, 312b: Indication

Claims

1. A cuff, worn around the area to be measured for blood pressure measurement, characterized in that, The cuff comprises: a bag-shaped outer portion having a circumferential direction as a winding direction toward the measurement portion and a width direction as a direction orthogonal to the circumferential direction, and having an outer surface that becomes the outer side and an inner surface that becomes the inner side when the cuff is worn; and a fluid bag that is housed in the outer portion. And hook and loop fasteners, provided on the surface of the outer part, The surface of the outer casing is provided with graduations that divide the outer casing circumferentially. The cuff is configured to determine where a specific portion of the cuff is located on the scale when the cuff is worn.

2. The cuff according to claim 1, characterized in that, The scale is located in the region encompassing the central portion in the width direction.

3. The cuff according to claim 1, characterized in that, The scale is located in a region that includes at least one end in the width direction.

4. The cuff according to claim 3, characterized in that, The scale markings are respectively located in the regions encompassing the two ends in the width direction. The outer casing is provided with markings that indicate the position of each of the scales.

5. The cuff according to claim 4, characterized in that, The mark corresponding to the scale at one end in the width direction and the mark corresponding to the scale at the other end in the width direction are set to reflect the taper of the measured part in the width direction but different positions in the circumferential direction.

6. The cuff according to claim 1, characterized in that, The cuff also includes a fold-back loop for the outer end of the cuff, which is one end of the outer garment in the circumferential direction and is exposed on the outside when the cuff is worn, to pass through and fold back. The scale is located on the inner surface. The specified location is the folded-back portion of the outer garment when the sleeve is worn.

7. The cuff according to claim 1, characterized in that, The outer part also accommodates a loop, which is elastic and helps to maintain the cuff in a loop shape. The scale is located on the outer surface. The designated area is the circumferential end of the outer garment portion that is exposed on the outside when the cuff is worn.

8. The cuff according to claim 1, characterized in that, The outer part also accommodates a loop, which is elastic and helps to maintain the cuff in a loop shape. The scale is located on the outer surface. The designated location is the marking located on the outer surface.

9. A blood pressure measuring device, comprising: The cuff according to any one of claims 1 to 8; and The main body of the blood pressure monitor is connected to the cuff.

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