Armband for sphygmomanometer

Abstract

The present invention provides an armband for a sphygmomanometer that houses a core material and can be easily put on a subject. The armband (10) for a sphygmomanometer has: a belt-shaped cover portion (11) whose length in the winding direction (P) around the subject (A) is longer than its length in the width direction (Dw); a core material (20) housed in the cover portion (11), having elasticity and being bent in the winding direction (P). The core material (20) has: a core material main body portion (21) that surrounds the subject in the winding direction (P); a guiding portion (22) that extends in a direction away from the core material main body portion (21) from one end (21b) in the winding direction (P) of the core material main body portion (21); the elastic force near at least one end of the guiding portion (22) is weaker than that of the core material main body portion, and in the tangential direction (Dt) with respect to the bent core material main body portion (21) at one end (21b), it extends to the outside of the end portion (21D) of the core material main body portion (21).

Description

Technical Field

[0001] The present disclosure relates to an armband for a sphygmomanometer. Background Art

[0002] Some sphygmomanometers have an armband for a sphygmomanometer (also referred to as a cuff for a sphygmomanometer) that is wound around a subject such as an arm, a wrist, or a finger when measuring blood pressure. The armband for a sphygmomanometer is mounted on the subject in order to appropriately compress the subject by the expansion of an air bag housed therein.

[0003] There is known an armband for a sphygmomanometer that houses a core material made of an elastic body in order to assist in winding around a subject (for example, refer to Patent Document 1). The armband for a sphygmomanometer makes it easier to wind (the operation) around the subject by causing the core material to wind and fit around the subject by its own elastic force.

[0004] Prior Art Documents

[0005] Patent Documents

[0006] Patent Document 1: Japanese Patent No. 3740985 Gazette Summary of the Invention

[0007] Problems to be Solved by the Invention

[0008] In addition, the above-mentioned armband for a sphygmomanometer bends the core material in a cylindrical shape so that it can be restored to the state of being wound around the subject, and it is necessary to widen the interval between one end and the other end in the winding direction when fitting around the subject. Therefore, the above-mentioned armband for a sphygmomanometer has a shape in which one end in the winding direction of the core material is located outside the other end (in the direction away from the center of the cylinder), and by hanging one end thereof on the subject and pressing it against the subject, the operation of fitting the core material around the subject is made easier.

[0009] Here, for the above-mentioned armband for a sphygmomanometer, for example, the armband for a sphygmomanometer is held with the hand opposite to the dominant hand, or the arm on the holding hand side is bent into an L shape and the armband for a sphygmomanometer is attached to the upper arm or the like. In this way, the holding method of the armband for a sphygmomanometer is not fixed, and the attachment method on the subject is also not fixed. Therefore, depending on the holding method of the armband for a sphygmomanometer or the part of the subject, one end of the core material sometimes abuts against the surface of the attachment part at a position or angle that is difficult to expand, and it is sometimes difficult to widen the interval from the other end by hanging it on the subject.

[0010] The present disclosure has been made in view of the above circumstances, and an object thereof is to provide an armband for a sphygmomanometer that houses a core material and can be easily fitted around a subject.

[0011] Means for Solving the Problems

[0012] The armband for a sphygmomanometer according to the present disclosure is characterized by having: a belt-shaped cover portion whose length in the winding direction around the subject is longer than its length in the width direction, and a core material housed in the cover portion, having elasticity and being bent in the winding direction; the core material having: a core material main body portion that surrounds the subject in the winding direction, and a guiding portion that extends in a direction away from the core material main body portion from one end of the core material main body portion in the winding direction; the elasticity of the guiding portion near at least the one end is weaker than that of the core material main body portion, and the guiding portion extends to the outside of the end portion of the core material main body portion in the tangential direction of the bent core material main body portion at the one end.

[0013] Effect of the Invention

[0014] The armband for a sphygmomanometer according to the present disclosure houses a core material and can be easily put on the subject. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic view showing a state where the armband for a sphygmomanometer as an embodiment of the present disclosure is wound around a human arm (subject).

[0016] Figure 2 is along Figure 1 a cross-sectional view taken along line I-I shown.

[0017] Figure 3 is a perspective view showing the armband for a sphygmomanometer.

[0018] Figure 4 is a perspective view showing a state when the core material of the armband for a sphygmomanometer is viewed from the guiding portion side.

[0019] Figure 5 is a perspective view showing a state when the core material is viewed obliquely from above the upper end position.

[0020] Figure 6 is an end view showing a state when the core material is viewed in the width direction.

[0021] Figure 7 is a perspective view showing a state where the core material is put into Figure 3 the armband for a sphygmomanometer.

[0022] Figure 8 is an explanatory view showing a state where the core material approaches the arm.

[0023] Figure 9 is an explanatory view showing a state where the guiding portion is brought into contact with the arm.

[0024] Figure 10 is a view showing when viewed in the width direction with respect to Figure 9End view of the case of the core material in the same scenario.

[0025] Figure 11 It shows a state in the middle of opening the core material (the main body of this core material) by holding the right side (the other end side) starting from the Figure 10 scenario, and is an end view.

[0026] Figure 12 It shows a state in the middle of pressing the core material against the arm starting from the Figure 10 scenario, and is an end view.

[0027] Figure 13 It shows a state of putting the core material on the arm, and is an end view.

[0028] Figure 14 It is an explanatory view showing a state where the core material is inclined with respect to the arm and approaching the arm.

[0029] Figure 15 It is a perspective view showing the case of observing another example of the core material from the guide part side.

[0030] Explanation of reference numerals

[0031] 10: Armband for sphygmomanometer,

[0032] 11: Cover part,

[0033] 20: Core material,

[0034] 21: Main body of the core material,

[0035] 21a: Corner part,

[0036] 21b: One end,

[0037] 21c: The other end,

[0038] 22: Guide part,

[0039] 22a: Front end (an example of a load dispersion part),

[0040] 23: Cut part,

[0041] 28: Protrusion part (an example of a load dispersion part),

[0042] A: Arm (an example of a subject),

[0043] Dt: Tangential direction,

[0044] Dw: Width direction,

[0045] P: Winding direction,

[0046] SL: Inclination limit line. Detailed implementation method

[0047] Hereinafter, a first embodiment of the armband 10 for a sphygmomanometer as an example of the armband for a sphygmomanometer of the present disclosure will be described with reference to the accompanying drawings. In addition, in order to easily understand the action of the core material 20 on the arm A (hereinafter, also referred to as the subject), Figures 8 to 14 the arm A is shown in a simplified manner.

[0048] First Embodiment

[0049] Use Figures 1 to 15 A first embodiment of the armband 10 for a sphygmomanometer according to an embodiment of the armband for a sphygmomanometer of the present disclosure will be described. The armband 10 for a sphygmomanometer in the first embodiment is used as an armband of a sphygmomanometer that is wound around the arm A of the subject to measure blood pressure. Hereinafter, in the armband 10 for a sphygmomanometer, the direction of winding around the arm A (the circumferential direction of the arm A in the wound state) is defined as the winding direction P, and the direction orthogonal thereto (the direction along the arm A in the wound state) is defined as the width direction Dw. In addition, in the armband 10 for a sphygmomanometer, in a state where the palm of the arm A as the winding object faces upward (the upper side in the vertical direction), the vertical direction when in a posture appropriately mounted on the arm A is defined as the vertical direction Dv, and the direction orthogonal to the vertical direction Dv and the width direction Dw is defined as the left-right direction Dh.

[0050] [Structure of the Armband]

[0051] As Figure 1 shown, the armband 10 for a sphygmomanometer is wound around the arm A (subject) of the subject. As Figure 2 shown, the armband 10 for a sphygmomanometer is configured by housing an air bag 12 and a core material 20 in a cover portion 11.

[0052] As Figures 1 to 3 shown, the cover portion 11 is a strip having a length in the winding direction P longer than the length in the width direction Dw. The cover portion 11 has a front cloth 13 and a back cloth 14 (see Figure 2 ). The front cloth 13 is disposed on the outer peripheral side in a state of being wound around the arm A, and the back cloth 14 is disposed on the inner peripheral side in a state of being wound around the arm A. The front cloth 13 and the back cloth 14 are made of a material that can be freely bent, such as cloth or resin, and are joined in the entire circumferential direction of the periphery. Thereby, a storage space 15 for housing the air bag 12 and the core material 20 is formed between the front cloth 13 and the back cloth 14 of the cover portion 11.

[0053] The cover portion 11 has a partition cloth 16 disposed in the storage space 15. The partition cloth 16 divides the storage space 15 into an outer side, i.e., the side of the surface cloth 13, and an inner side, i.e., the side of the lining cloth 14. The partition cloth 16 is parallel to the surface cloth 13 and the lining cloth 14 and joined to them. Therefore, the storage space 15 is divided into an outer storage portion 15a located between the surface cloth 13 and the partition cloth 16 and an inner storage portion 15b located between the lining cloth 14 and the partition cloth 16. The core material 20 is stored in the outer storage portion 15a of the storage space 15, and the air bag 12 is stored in the inner storage portion 15b.

[0054] As Figure 3 shown, etc., the cover portion 11 is provided with a female type Velcro 17 and a male type Velcro 18. The female type Velcro 17 is formed by disposing a looped fluff on the entire surface of the lining cloth 14 except for the curled range (the left end side when viewed from the front Figure 3 ). The male type Velcro 18 is formed by disposing a hooked fluff on a part of the curled range of the surface cloth 13. When the female type Velcro 17 and the male type Velcro 18 are pressed against each other in a state where the blood pressure measuring armband 10 is wound around the arm A, the looped fluff and the hooked fluff are hooked and closely adhered to each other, thereby maintaining the state where the blood pressure measuring armband 10 is wound around the arm A.

[0055] As Figure 2 shown, the air bag 12 is made of, for example, polyvinyl chloride (PVC), and is formed in a rectangular bag shape having a double-layer structure in which two bag bodies are stacked. The air bag 12 is connected to an air tube 19 (refer to Figure 1 , Figure 3 etc.). By supplying air through the air tube 19, air is supplied to the inside to inflate the air bag 12. In addition, the air bag 12 discharges the air inside and contracts by discharging air through the air tube 19.

[0056] [Structure of the core material]

[0057] As Figures 4 to 6 shown, the core material 20 is formed of an elastic plate made of, for example, polypropylene (PP), and has a core material main body portion 21 and a guiding portion 22. In order to make it easy to wind the blood pressure measuring armband 10 around the arm A (i.e., the subject), the core material main body portion 21 is a portion that is wound and sleeved on the arm A using its own elasticity. The core material main body portion 21 is formed in a substantially rectangular thin plate shape and bent into a substantially cylindrical shape. Even if the core material main body portion 21 is subjected to a load that opens the substantially cylindrical shape into a flat shape, as long as the load is removed, it can be restored to the original substantially cylindrical shape. The curvature of the core material main body portion 21 is set from the viewpoint of assisting in winding around the arm A of the subject. In a state where the core material main body portion 21 of the first embodiment is stored in the outer storage portion 15a of the cover portion 11, it is bent in such a way that the inner diameter of the cover portion 11 (blood pressure measuring armband 10) is thinner than the thickness of the arm A of an average adult.

[0058] The core material main body 21 has cutout portions 23 provided at four corner portions 21a. The four corner portions 21a are portions located at the corners of the substantially rectangular core material main body 21, and are two end portions in the width direction Dw of two end edges in the winding direction P (hereinafter, one is set as one end 21b and the other is set as the other end 21c). In the first embodiment, the sizes of the respective cutout portions 23 are equal to each other, and each cutout portion 23 is formed into a shape that cuts the corresponding corner portion 21a into an L-shaped by two side portions substantially parallel to the contour line of the core material main body 21.

[0059] Each of the cutout portions 23 in the first embodiment has rounded corners formed during cutting. Specifically, since each cutout portion 23 is formed into the shape cut as described above, it has two convex corner portions 23a and one concave corner portion 23b, and the respective corner portions (23a, 23b) are rounded corners.

[0060] By providing four cutout portions 23 in the core material main body 21, the central portion in the winding direction P becomes a wide-width portion 24 having a relatively large size in the width direction Dw, and the vicinity of both end edges (one end 21b and the other end 21c) in the winding direction P becomes narrow-width portions 25 having a relatively small size in the width direction Dw. These two narrow-width portions 25 are located at the center in the width direction Dw and project from the wide-width portion 24 in the winding direction P.

[0061] In addition, the core material main body 21 has air holes 26. The air holes 26 are used for supplying air to the air bag 12 and discharging air from the air bag 12, and penetrate the core material main body 21. Here, since the cover portion 11 houses the core material 20 in the outer housing portion 15a and the air bag 12 in the inner housing portion 15b in the storage space 15, in the state of being wound around the arm A, the positional relationship is such that the core material 20 covers the air bag 12. Therefore, the air holes 26 can connect the air tube 19 and the air bag 12, and thus can supply or discharge the air of the air bag 12. In the air bag 12 of the first embodiment, the air tube 19 is installed at the central position in the winding direction P.

[0062] The air holes 26 in the first embodiment are provided at the upper end position 21U of the core material main body 21. The upper end position 21U is a position that faces the upper end of the arm A in the state where the palm of the arm A as the winding object faces upward (the upper side in the plumb direction) in the winding direction P. Therefore, the air bag 12 expands toward both sides in the winding direction P with the center between the upper end of the arm A and the upper end position 21U, and can appropriately press the arm A from the viewpoint of efficient expansion and blood pressure measurement.

[0063] Moreover, the core material main body 21 has a return portion 27 at the other end 21c. The return portion 27 is formed by folding outward from the other end 21c and is provided in the entire area in the width direction Dw of the other end 21c. The return portion 27 forms an inclined surface 27a that is inclined so as to face the outside in the radial direction from the center of curvature of the core material main body 21, that is, the bending center C. Since the inclined surface 27a is inclined in this way, when the core material main body 21 abuts against the arm A, a component force in the direction of opening the two end edges (one end 21b and the other end 21c) of the core material main body 21 is generated (see Figure 12 ).

[0064] The guiding portion 22 is a portion that guides the position or the moving direction of the core material main body 21 relative to the arm A in order to easily fit the core material main body 21 onto the arm A. The guiding portion 22 is formed in a substantially rectangular thin plate shape and in a flat plate shape along a substantially flat surface. In the first embodiment, the guiding portion 22 extends from the center position of the narrow portion 25 in the width direction Dw, and the dimension in the width direction Dw is smaller than that of the narrow portion 25 of the core material main body 21. Therefore, even if the guiding portion 22 is integrally formed with the core material main body 21 by the same member, the elasticity of the guiding portion 22 is weaker than that of the core material main body 21, that is, the guiding portion 22 is easier to bend than the core material main body 21.

[0065] The guiding portion 22 protrudes from one end 21b of the core material main body 21 along the tangential direction Dt of the core material main body 21. The tangential direction Dt is the following direction: on a plane orthogonal to the bending center C (see Figure 6 ), it is the direction of the tangent to the circle centered on the bending center C at the root of the guiding portion 22 (one end 21b of the core material main body 21 (narrow portion 25)). Thus, the guiding portion 22 gradually increases the interval between itself and the core material main body 21 from one end 21b of the core material main body 21, that is, extends in a direction away from the core material main body 21.

[0066] The two corners at the front end 22a that is the protruding end of the guiding portion 22 are rounded. Specifically, since the guiding portion 22 is formed in a substantially rectangular shape, although the front end 22a has two convex corners, by making these corners rounded, the front end 22a is formed in a substantially semi-circular shape.

[0067] On a plane orthogonal to the bending center C, when observed in the tangential direction Dt, the guiding portion 22 extends to the outside of the end of the core body portion 21. Specifically, in a state where the upper end position 21U is located above, the front end 22a of the guiding portion 22 is at least below the lower end position 21D in the tangential direction Dt. The lower end position 21D is a position where, when observed in a plane orthogonal to the bending center C, it faces the upper end position 21U across the bending center C in the core body portion 21. Therefore, the straight line connecting the upper end position 21U, the bending center C, and the lower end position 21D is parallel to the vertical direction Dv. If the plane orthogonal to this straight line and containing the lower end position 21D is defined as the lower end reference plane Pr, the guiding portion 22 intersects the lower end reference plane Pr, and the front end 22a is located below the lower end reference plane Pr. Therefore, the lower end position 21D becomes the end of the core body portion 21 in the tangential direction Dt at one end 21b.

[0068] The guiding portion 22 of the first embodiment extends to a position intersecting the inclination limit line SL (refer to Figure 14 ). As will be described later, this inclination limit line SL represents a line such that when the armband 10 for sphygmomanometer is wound around the arm A, due to the notch portion 23 provided in the core body portion 21, it is the limit line for the core body portion 21 to be able to incline relative to the arm A. When observing the core body portion 21 in the left - right direction Dh, the inclination limit line SL becomes a line connecting two convex corner portions 23a in the notch portion 23. When observed in the left - right direction Dh, the guiding portion 22 intersects the inclination limit line SL, and the front end 22a extends beyond the inclination limit line SL and is located below it.

[0069] As Figure 7 shown, the core 20 configured in this way is accommodated in the outer accommodation portion 15a of the accommodation space 15, so that a part of the armband 10 for sphygmomanometer (the left - hand side when viewed from the front) is in a curled state. Thus, the core 20 assists in winding the armband 10 for sphygmomanometer around the arm A.

[0070] [Function of the armband]

[0071] Next, the situation of winding the armband 10 for sphygmomanometer around the arm A (the subject) will be described. The subject opens both end portions (one end 21b and the other end 21c of the core 20) in the winding direction P of the curled armband 10 for sphygmomanometer due to the core 20, and installs the curled portion of the armband 10 for sphygmomanometer on the arm A. Then, the armband 10 for sphygmomanometer applies a load through the elastic force of the core 20 to compress the arm A inward. Thus, a frictional force is generated in the circumferential direction of the arm A between the lining 14 and the surface of the arm A.

[0072] Accordingly, when the blood pressure measurement armband 10 is mounted on the arm A with the wound portion thereof, rotation (idling) of the blood pressure measurement armband 10 relative to the arm A can be prevented when the remaining portion of the blood pressure measurement armband 10 is wound. Further, the blood pressure measurement armband 10 maintains the state of being wound around the arm A by attaching the female hook-and-loop fastener 17 provided on the remaining portion to the male hook-and-loop fastener 18 of the wound portion. Thereafter, when the air bag 12 is inflated by supplying air through the air tube 19, the blood pressure measurement armband 10 appropriately suppresses the arm A from the outside to make the compression of the arm A caused by the inflation appropriate.

[0073] [Function of the core material]

[0074] Next, use Figures 8 to 14 to explain the function of the core material 20 when the blood pressure measurement armband 10 is mounted on the arm A. Figures 8 to 14 To easily grasp and understand the function of the core material 20 in the cover portion 11 on the arm A, members other than the core material 20 in the blood pressure measurement armband 10 are omitted, and only the core material 20 and the arm A are shown. Further, in the blood pressure measurement armband 10, the core material 20 is housed in the cover portion 11, so the core material 20 contacts the arm A with the cover portion 11 interposed therebetween. However, hereinafter, to easily grasp and understand the function of the core material 20 on the arm A and avoid using redundant expressions, the case of sandwiching the cover portion 11 is omitted for explanation.

[0075] As Figure 8 , Figure 9 shown, when the blood pressure measurement armband 10 is to be wound around the arm A, the core material 20 approaches the arm A to press the arm A between the two end edges (one end 21b and the other end 21c) of the core material main body portion 21. At this time, the guide portion 22 is provided to protrude downward from one end 21b of the core material main body portion 21, and the guide portion 22 extends to the outside of the core material main body portion 21. Therefore, when the core material 20 approaches, it is easy to attach the guide portion 22 to the arm A (refer to Figure 9 , Figure 10 ). Further, with the guide portion 22 attached to the arm A, the subject brings the core material main body portion 21 closer to the arm A, so that the vicinity of one end 21b and the other end 21c that form the gap of the core material main body portion 21 can approach the arm A.

[0076] Then, with the guide portion 22 attached to the arm A, the subject holds the right side (the other end 21c side) of the core material 20 (the core material main body portion 21) when viewed from the front and stretches it to the right, thereby moving the right side of the core material main body portion 21 relative to the arm A in the direction of opening between one end 21b and the other end 21c. Thus, as Figure 10 shown, Figure 11As shown, by pressing the guiding portion 22 against the arm A, the core material 20 obstructs the movement of the guiding portion 22 and thus the movement of the end 21b side continuous therewith relative to the arm A, thereby deforming the core material main body portion 21 in such a manner that the other end 21c moves away from the one end 21b. Therefore, the guiding portion 22 has a guiding function of positioning the arm A between the one end 21b and the other end 21c that form the gap of the bent core material main body portion 21.

[0077] Then, as Figure 12 shown, the subject presses the inclined surface 27a of the return portion 27 of the other end 21c against the arm A until the one end 21b and the other end 21c of the core material main body portion 21 are separated by a distance exceeding a specified interval. Thereafter, the subject moves the core material main body portion 21 in a direction approaching the arm A (downward when viewed from the front Figure 12 ). In the core material main body portion 21, a component force of the force generated by the movement is produced when the inclined surface 27a presses against the arm A. Thus, in the core material main body portion 21, the movement of the one end 21b side relative to the arm A is obstructed by the guiding portion 22, and a component force caused by the inclined surface 27a is generated on the other end 21c side, thereby widening the interval between the two end edges in such a manner that the other end 21c separates from the one end 21b. Therefore, when the core material main body portion 21 is put on the arm A, the guiding portion 22 has a movement guiding function of moving the core material main body portion 21 in a direction assisting the expansion between the one end 21b and the other end 21c. Then, the subject further moves the core material main body portion 21 closer to the arm A. As Figure 13 shown, the arm A can be guided to the inside of the core material main body portion 21, and the core material main body portion 21 is put on in a manner surrounding the arm A.

[0078] Thus, the core material 20 is mounted on the arm A with the upper end position 21U positioned above. Therefore, if the arm A as the winding object is in a state with the palm facing upward (the upper side in the plumb direction), the core material 20 can position the upper end position 21U near the artery of the arm A. The armband 10 for a sphygmomanometer according to the first embodiment is provided with an air hole 26 at the upper end position 21U, and an air tube 19 communicating with the air hole 26 is installed at the central position of the air bag 12 in the winding direction P. Therefore, the central position can be positioned near the artery of the arm A. Thus, the armband 10 for a sphygmomanometer can compress the artery at the central position of the air bag 12 in the winding direction P, can eliminate the directivity of the compression direction (compression intensity) of the artery, and can eliminate the influence of the deviation of the directivity of the artery compression each time of measurement. Accordingly, from the viewpoint of measuring blood pressure, the armband 10 for a sphygmomanometer is wound around the arm A in a posture capable of appropriately compressing the arm A.

[0079] [Problems of the Prior Art]

[0080] Here, the problems of the conventional armband for a sphygmomanometer will be described. In the conventional armband for a sphygmomanometer, in the core material, it is formed into a shape in which one end in the winding direction is located outside the other end (the direction away from the subject), and by hanging one end on the subject and pressing it against the subject, the core material can be easily wound around the subject. The core material of the conventional armband for a sphygmomanometer is composed only of the part that constitutes the winding portion wound around the subject, that is, the part corresponding to the core material main body portion 21 of the present disclosure, and by gradually changing the curvature during curling, one end is located outside the other end.

[0081] Therefore, the interval between one end and the other end of the conventional core material depends on the degree of curvature change. Moreover, if the interval between one end and the other end of the conventional core material is widened, the curling method of the core material will become troublesome, so it is difficult to properly put it on the subject, and the function of assisting winding may be reduced. On the other hand, for the conventional core material, if the curvature is set from the viewpoint of properly putting it on the subject, the interval between one end and the other end becomes narrow, and it is difficult to widen the interval from the other end while keeping one end against the arm.

[0082] [Functions of the Present Disclosure]

[0083] In contrast, the core material 20 of the armband 10 for a sphygmomanometer of the present disclosure has: a core material main body portion 21, the curvature of which is set from the viewpoint of assisting winding around the arm A (the subject); and a guiding portion 22, which extends from one end 21b of the core material main body portion 21 in a direction away from the core material main body portion 21. Therefore, the core material 20 does not reduce the function of assisting winding around the arm A, can easily bring the guiding portion 22 against the arm A, and can properly put the core material main body portion 21 on the arm A.

[0084] Here, since the guiding portion 22 is formed of an elastic plate material as a part of the core material 20, when the curled part in the armband 10 for a sphygmomanometer (the cover portion 11) is mounted on the arm A, if the remaining part is wound around the arm A, it can be wound around the arm A together with the cover portion 11. At this time, the elastic force of the guiding portion 22 is weaker than that of the core material main body portion 21, so the repulsive force during winding around the arm A can be suppressed, and it can be easily wound. In addition, the front end 22a of the guiding portion 22 is smoothed into a substantially semicircular shape, so it can prevent the force that repels winding due to its own elasticity from locally acting on the cover portion 11 (mainly the front cloth 13), and can suppress damage to the cover portion 11. Therefore, the guiding portion 22 functions as a load dispersing portion that disperses the load on the cover portion 11 when the front end 22a presses on the cover portion 11. Thus, the guiding portion 22 does not hinder the installation of the armband 10 for a sphygmomanometer on the arm A, and can properly assist the winding of the armband 10 for a sphygmomanometer around the arm A.

[0085] In addition, each end (one end 21b and the other end 21c) of the core material 20 of the present disclosure in the winding direction P of the core material main body 21 has a cut portion 23. Therefore, as Figure 14 shown, even in a state inclined with respect to the arm A, it is easy to be mounted on the arm A. This is due to the following effects. First, a state where the lower end edges 25a (one end 21b and the other end 21c) of the two narrow-width portions 25 of the core material main body 21 of the core material 20 are parallel to the arm A (refer to Figure 9 etc.) is set as a state not inclined with respect to the arm A. Since the core material 20 is provided with the cut portion 23, even when the lower end edge 25a is inclined with respect to the arm A from the state of contacting the arm A, before the two convex corner portions 23a of the cut portion 23 come into contact with the arm A, the core material main body 21 does not come into contact with the arm A. Moreover, even if the core material 20 attempts to incline beyond the state where the two corner portions 23a come into contact with the arm A, since any one of the corner portions 23a abuts against the arm A, the inclination of the core material 20 cannot be increased. Therefore, in the core material 20, when viewed in the left-right direction Dh, the straight line connecting the two convex corner portions 23a on the one end 21b side is used as the inclination limit line SL indicating the limit of inclination with respect to the arm A (overlaps with the upper edge of the arm A in Figure 14 ). In contrast, for a core material without a cut portion, even if it attempts to incline from a non-inclined state, the core material main body comes into contact with the arm, so it cannot incline. Therefore, by providing the cut portion 23, the core material 20 can be mounted on the arm A in an inclined manner. This means that in the arm band 10 for a sphygmomanometer, for example, when the subject starts from a state where the lower end edge 25a side of the core material main body 21 contacts the arm A and holds the core material main body 21 in a posture where it is difficult to maintain non-inclination during installation or at a difficult-to-hold part, the core material main body 21 can be mounted while being inclined with respect to the arm A. As described above, by providing the cut portion 23, the core material 20 can be easily mounted on the arm A.

[0086] In addition, by providing the cut portion 23, when the core material 20 approaches the arm A, at a time point before becoming Figure 8 and Figure 9 , Figure 10 , even in a case of being inclined with respect to the arm A as in Figure 14 , it is easy to be mounted on the arm A. This is for the following reasons. In the core material main body of a core material without a cut portion (hereinafter, also referred to as a non-cut core material), the portions corresponding to the two narrow-width portions 25 have the same size as the wide-width portion 24 in the width direction Dw. Therefore, when viewed from the front Figure 14 , the corner portions protrude to the lower side of the core material 20. Therefore, when the non-cut core material is in a state of Figure 14When approaching the arm A in the same posture as the core material 20, at a position farther from the arm A than the core material 20 (upper side when viewed from the front), the core material main body (its corner portion) contacts the arm A. Thus, even when a guiding portion identical to that of the core material 20 is provided, the non-cut core material cannot bring the guiding portion into contact with the arm A, or only the front end contacts the arm A. In this way, the non-cut core material cannot utilize the guiding portion, or when only the front end contacts, it cannot sufficiently prevent the movement of one end side relative to the arm A through the guiding portion, and thus cannot obtain the effect of expanding the interval between one end and the other end. In contrast, by providing the cut portion 23 in the core material 20, Figure 14 the lower end position of the core material main body 21 in the state of the posture can be shorter than that of the non-cut core material, so that the position of contact with the arm A can be closer. Therefore, as Figure 14 shown, the core material 20 can reliably and sufficiently bring the guiding portion 22 into contact with the arm A, so that the guiding portion 22 can effectively function. Figure 14 Furthermore, in addition to this, in the core material 20, by providing the cut portion 23, the interval for pressing into the arm A (hereinafter also referred to as the insertion interval) can be increased, which also helps to be easily mounted on the arm A. Use

[0087] to illustrate this. First, in the core material 20, by providing the cut portion 23, the core material main body 21 has a wide portion 24 and a narrow portion 25. Moreover, in the core material 20, in the narrow portion 25 (its lower end edge 25a), one end 21b and the other end 21c that define the insertion interval are close to each other. In contrast, in the core material 20, in the wide portion 24, the insertion interval is defined by the corner portion 23a on the one end 21b side and the corner portion 23a on the other end 21c side, and the interval (insertion interval) between the two corner portions 23a is larger than the insertion interval of the narrow portion 25. Therefore, in the core material 20, by using the insertion interval between the two corner portions 23a of the wide portion 24, it is easier to press the arm A into the core material compared to directly pressing the arm A into the insertion interval of the narrow portion 25 (between one end 21b and the other end 21c), so that it can be easily mounted on the arm A. In addition, in this case, in the core material 20, even if the arm A is pressed into the insertion interval of the wide portion 24 (two corner portions 23a), it is necessary to press the arm A into the insertion interval of the narrow portion 25 (one end 21b and the other end 21c) afterwards. Therefore, the above-mentioned inclination limit line SL still represents the limit of the inclination relative to the arm A. Figure 6

[0088] ​Further, the core material 20 of the first embodiment has cutout portions 23 at two corners (21a) in the width direction Dw at respective ends (one end 21b and the other end 21c), and thus can be inclined relative to the arm A on either side in the direction along the arm A. Therefore, the core material 20 can be inclined in the same manner without difference relative to either the left arm A or the right arm A of the subject, and the armband 10 for a sphygmomanometer can be easily installed, so that the usability can be improved. In addition, in the armband 10 for a sphygmomanometer, the case where the subject installs it on his / her own arm and the case where other people such as a caregiver other than the subject install it on the subject's arm are considered. Moreover, whether it is the subject himself / herself or others, the inclination habits vary from person to person, but it can be inclined in the direction where it is easy to install for each, so that the usability can be improved.

[0089] In particular, in the core material 20 of the first embodiment, when observed in the left-right direction Dh, the guiding portion 22 extends beyond the inclination limit line SL. Therefore, even when the core material main body portion 21 is inclined to the maximum inclination where the two corner portions 23a of the cutout portion 23 are in contact with the arm A, the guiding portion 22 can be brought into contact with the arm A. Thus, even when the core material main body portion 21 is inclined relative to the arm A, the core material 20 can obtain the effect of the position guiding action or the movement guiding action of the guiding portion 22. Therefore, the core material 20 can be more easily installed on the arm A.

[0090] [Advantages and effects of the present disclosure]

[0091] An armband 10 for a sphygmomanometer according to an embodiment of the present disclosure can obtain the following respective advantages and effects.

[0092] In the armband 10 for a sphygmomanometer, the core material 20 housed in the cover portion 11 has: a core material main body portion 21 that surrounds the subject in the winding direction P; and a guiding portion 22 that extends in a direction away from the core material main body portion 21 from one end 21b of the core material main body portion 21. Moreover, in the core material 20 of the armband 10 for a sphygmomanometer, the guiding portion 22 extends to the outside of the end portion (21D) of the core material main body portion 21 in the tangential direction Dt with respect to the bent core material main body portion 21 at the one end 21b. Therefore, the armband 10 for a sphygmomanometer guides the arm A in a direction where the one end 21b and the other end 21c can be easily expanded from the state where the guiding portion 22 is abutted against the arm A, and thus the one end 21b and the other end 21c can be expanded. Thereby, the armband 10 for a sphygmomanometer can be easily installed on the subject.

[0093] In addition, in the armband 10 for a sphygmomanometer, the dimension of the guiding portion 22 in the width direction Dw is smaller than that of the core material main body portion 21. Therefore, in the armband 10 for a sphygmomanometer, compared with the case where the dimension is the same as that of the core material main body portion 21, the guiding portion 22 can be bent more easily, that is, the elastic force is weak. Therefore, when winding the remaining non-curled portion of the armband 10 for a sphygmomanometer around the arm A, the rebounding force from the guiding portion 22 can be suppressed, and it can be wound easily.

[0094] Furthermore, in the armband 10 for a sphygmomanometer, the guiding portion 22 extends along the tangential direction Dt. Therefore, the armband 10 for a sphygmomanometer can extend the guiding portion 22 from the core material main body portion 21 to the outside in the shortest distance in the tangential direction Dt, and can make the guiding portion 22 easily adhere to the arm A.

[0095] The armband 10 for a sphygmomanometer has a cutout portion 23 formed by cutting off the corner portions 21a at both ends (one end 21b and the other end 21c) in the winding direction P in the core material main body portion 21. Therefore, the armband 10 for a sphygmomanometer can be easily attached to the arm A even in a state inclined with respect to the arm A.

[0096] In the armband 10 for a sphygmomanometer, the cutout portions 23 are respectively provided at the two corner portions 21a in the width direction Dw of the core material main body portion 21. Therefore, the armband 10 for a sphygmomanometer can be inclined with respect to the arm A in any direction and can be easily attached to the arm A.

[0097] In the armband 10 for a sphygmomanometer, the guiding portion 22 is extended to a position intersecting with the inclination limit line SL defined by providing the cutout portion 23. Therefore, the armband 10 for a sphygmomanometer can make the guiding portion 22 adhere to the arm A even in a state inclined with respect to the arm A, and can obtain the effect of the position guiding function or the movement guiding function of the guiding portion 22.

[0098] In the armband 10 for a sphygmomanometer, the front end 22a of the guiding portion 22 has a substantially semicircular shape that is rounded, so that the front end 22a of the guiding portion 22 functions as a load dispersing portion for dispersing the load when pressed against the cover portion 11. Therefore, the armband 10 for a sphygmomanometer can suppress the case where the guiding portion 22 damages the cover portion 11 when the cover portion 11 is wound around the arm A.

[0099] Therefore, the armband 10 for a sphygmomanometer as the first embodiment of the armband for a sphygmomanometer of the present disclosure can accommodate the core material 20 and can be easily put on the subject.

[0100] As described above, the armband for a sphygmomanometer of the present disclosure has been described based on the first embodiment. However, the specific structure is not limited to the first embodiment, and design changes or additions are allowed as long as they do not depart from the gist of the invention of each claim in the claims.

[0101] For example, in the above-described first embodiment, the core material 20 is made of resin. However, the core material 20 has a core main body portion 21 and a guiding portion 22. As long as it has elasticity to return to the original substantially cylindrical shape as long as the load that opens the substantially cylindrical shape into a flat shape is removed, it is not limited to the structure of the first embodiment.

[0102] In addition, in the above-described first embodiment, in the core material 20, the core main body portion 21 and the guiding portion 22 are formed integrally. However, as long as the guiding portion 22 can extend from one end 21b of the core main body portion 21 in a direction away from the core main body portion 21 and extend to the outside of the end portion of the core main body portion 21 in the tangential direction Dt, it may also be separately formed from the core main body portion 21 and mounted on the core main body portion 21, and is not limited to the structure of the first embodiment. When the guiding portion 22 is separately formed from the core main body portion 21, from the viewpoint of obtaining the effect of the position guiding action or the movement guiding action, the guiding portion 22 can use a material that optimizes the hardness (softness) or durability, etc. with a weaker elastic force than the core main body portion 21. In this case, for example, the guiding portion 22 can make the members different on the near side of one end 21b of the core main body portion 21 and the front end 22a side of the guiding portion 22, and the elastic force of the local near side can also be made weaker than the elastic force of the core main body portion 21.

[0103] Furthermore, in the above-described first embodiment, the load dispersion portion is formed by rounding the front end 22a of the guiding portion 22. However, as long as the load dispersion portion is a member that disperses the load on the cover portion 11 when pressed against the cover portion 11, it is not limited to the structure of the first embodiment. Figure 15 One example is shown. Figure 15 The load dispersion portion is structured such that a protrusion 28 is provided at the front end 22a of the guiding portion 22. The protrusion 28 protrudes from the front end 22a to both sides in the width direction Dw. The protrusion 28 can expand the contact area of the front end 22a with the cover portion 11, and thus can disperse the load on the cover portion 11.

[0104] In the above-described first embodiment, the guiding portion 22 extends along the tangential direction Dt. However, as long as the guiding portion 22 extends in a direction away from the core main body portion 21 and extends to the outside of the end portion of the core main body portion 21 in the tangential direction Dt ( Figure 6Below the lower end reference plane Pr shown), its extending direction can be appropriately set and is not limited to the structure of the first embodiment. For example, the guiding portion 22 can also extend in a curved manner relative to the tangential direction Dt toward the left and right direction Dh or the width direction Dw, or can extend obliquely relative to the tangential direction Dt. In addition, the guiding portion 22 can also make the vicinity of the base end (one end 21b) extend along the tangential direction Dt and then make the front end side partially bend or incline relative to the tangential direction Dt from there. Further, the guiding portion 22 is a long rectangular shape (except for the front end 22a), but its shape can also be appropriately set in a manner of changing the dimension in the width direction Dw and is not limited to the structure of the first embodiment. In addition, the guiding portion 22 is a single long member, but it can also be composed of a plurality of protrusions in a manner of making a plurality of rectangular-shaped members extend in the tangential direction Dt, and is not limited to the structure of the first embodiment.

[0105] In the above-described first embodiment, the cutout portion 23 is provided on the core material 20. However, the cutout portion 23 is used to easily mount the core material 20 on the subject (arm A) even in a state where the core material 20 is inclined with respect to the subject, so the cutout portion 23 may not be provided, and the structure is not limited to the first embodiment.

[0106] In the above-described first embodiment, the airbag 12 has a double-layer structure formed by stacking two bags. However, the airbag 12 can be a single bag or a multi-layer structure formed by stacking three or more bags. In addition, the airbag 12 can be replaced with a fluid bag into which a liquid flows.

[0107] In the above-described first embodiment, an example of applying the armband for a sphygmomanometer of the present disclosure to a sphygmomanometer mounted on the arm of a subject is shown. However, the armband for a sphygmomanometer of the present disclosure can also be applied to a sphygmomanometer mounted on the wrist of a subject.

[0108] In the above-described first embodiment, the return portion 27 configured as described above is provided at the other end 21c of the core material main body portion 21. However, as long as the return portion 27 forms an inclined surface 27a that generates a component force in a direction to open the two end edges (one end 21b and the other end 21c) of the core material main body portion 21 when the core material main body portion 21 abuts against the arm A, its structure can be appropriately set and is not limited to the structure of the first embodiment.

Claims

1. An armband for a sphygmomanometer, characterized in that, It has: A belt-shaped cover portion that is longer in the winding direction around the subject to be examined than in the width direction, and A core material that is housed in the cover portion, has elasticity, and bends in the winding direction; The core material has: A core material main body portion that surrounds the subject to be examined in the winding direction, and A guiding portion that extends in a direction away from the core material main body portion from one end in the winding direction in the core material main body portion; The elasticity of the guiding portion near at least the one end is weaker than that of the core material main body portion, and the guiding portion extends to the outside of the end of the core material main body portion in the tangential direction with respect to the bent core material main body portion at the one end, In a state where the upper end position of the core material main body portion is located above, the front end of the guiding portion is at least below the lower end position of the core material main body portion in the tangential direction.

2. The armband for a sphygmomanometer according to claim 1, wherein The size of the guiding portion in the width direction is smaller than that of the core material main body portion.

3. The armband for a sphygmomanometer according to claim 1, wherein The guiding portion is integrally formed with the core material main body portion by the same member, The guiding portion extends along the tangential direction at least near the one end.

4. The armband for a sphygmomanometer according to claim 2, wherein The guiding portion is integrally formed with the core material main body portion by the same member, The guiding portion extends along the tangential direction at least near the one end.

5. The armband for a sphygmomanometer according to claim 4, wherein The core material is formed of an elastic plate material, The core material main body portion is a portion that is wound and sleeved on the arm using its own elasticity, The guiding portion protrudes from the one end of the core material main body portion along the tangential direction of the core material main body portion.

6. The armband for a sphygmomanometer according to any one of claims 1 to 3, wherein The core material is formed of an elastic plate material, The core material main body portion is a portion that is wound and sleeved on the arm using its own elasticity, The guiding portion protrudes from the one end of the core material main body portion along the tangential direction of the core material main body portion.

7. The armband for a sphygmomanometer according to any one of claims 1 to 5, wherein The core material main body portion has a cutout portion formed by cutting off the corner portions at both ends in the winding direction, The guiding portion extends to a position where it intersects with the inclination limit line, When observing the core material main body portion in the left-right direction, the inclination limit line is a line connecting two convex corner portions in the cutout portion.

Images