JP7083933B1 - Blood pressure cuff - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blood pressure monitor arm band which accommodates a core material and can be easily fitted to a subject. SOLUTION: A strip-shaped cover 11 having a winding direction P wound around a subject (A) long with respect to a width direction Dw, and a core material 20 housed in the cover 11 and having elasticity and curved in the winding direction P. A blood pressure cuff 10 comprising. The core material 20 includes a core material main body 21 that surrounds the subject in the winding direction P, and a guide portion 22 that extends away from one end 21b of the winding direction P in the core material main body 21 with respect to the core material main body 21. The guide portion 22 has a weaker elastic force at least in the vicinity of one end than the core material main body portion, and the core material main body is in the tangential direction Dt at one end 21b with respect to the curvature of the core material main body portion 21. It extends to the outside of the end (21D) of the portion 21. [Selection diagram] FIG. 5

Description

The present disclosure relates to a blood pressure cuff.

Some sphygmomanometers are provided with a sphygmomanometer arm band (also referred to as a sphygmomanometer cuff) that is wrapped around a subject such as an arm, wrist, or finger when measuring blood pressure. The blood pressure cuff is attached to the subject in order to properly press the subject with the bulge of the air bag to be accommodated.

A sphygmomanometer arm band is known to accommodate a core material of an elastic body in order to assist wrapping around a subject (see, for example, Patent Document 1). This sphygmomanometer arm band facilitates wrapping (the work) around the subject by utilizing the fact that the core material is fitted so as to wrap around the subject by its own elastic force.

Japanese Patent No. 3740985

By the way, the above-mentioned blood pressure cuff is curved in a cylindrical shape so that the core material can be restored to the state of being wrapped around the subject, and when it is fitted to the subject, one end and the other end in the winding direction are used. It is necessary to widen the interval between. For this reason, the above-mentioned blood pressure cuff has a shape in which one end of the winding direction of the core material is located outside the other end (direction away from the center of the cylinder), and one end thereof is hooked on the subject. By pressing it against the subject, it is easy to fit the core material into the subject.

Here, the above-mentioned sphygmomanometer arm band is, for example, holding the sphygmomanometer arm band with the hand opposite to the dominant hand, bending the arm on the handle side into an L shape, and attaching it to the upper arm portion. As described above, the way of holding the sphygmomanometer arm band is not constant, and the mode of wearing the sphygmomanometer is not constant. For this reason, depending on how the blood pressure cuff is held and the part of the subject, one end of the core material may hit the surface of the wearing part at a position or angle that makes it difficult to spread, and by hooking it on the subject, it will reach the other end. It may not be easy to widen the interval between.

The present disclosure has been made in view of the above circumstances, and an object of the present invention is to provide a blood pressure cuff that accommodates a core material and can be easily fitted to a subject.

The sphygmomanometer arm band of the present disclosure includes a band-shaped cover that is wound around a subject in a long winding direction with respect to the width direction, and a core material that is housed in the cover and has elasticity and is curved in the winding direction. The core material includes a core material main body that surrounds the subject in the winding direction, and a guide portion that extends away from one end of the core material main body in the winding direction with respect to the core material main body. The guide portion has a weaker elastic force at least in the vicinity of one end than the core material main body portion, and the core material has a tangential direction at the one end with respect to the curvature of the core material main body portion. It is characterized in that it extends to the outside of the end of the main body.

According to the blood pressure cuff of the present disclosure, the core material is accommodated and can be easily fitted to the subject.

It is a schematic diagram which shows the appearance that the sphygmomanometer arm band as one embodiment which concerns on this disclosure is wrapped around a person's arm (subject). It is sectional drawing obtained along the line II shown in FIG. It is a perspective view which shows the arm band for a sphygmomanometer. It is a perspective view which shows the state which the core material of the arm band for a sphygmomanometer was seen from the guide part side. It is a perspective view which shows the appearance of the core material seen from diagonally above the upper end position. It is an end view which shows the appearance of the core material seen from the width direction. FIG. 3 is a perspective view showing a state in which a core material is inserted into the blood pressure monitor arm band of FIG. It is explanatory drawing which shows how the core material approaches an arm. It is explanatory drawing which shows the appearance that the guide part was addressed to the arm. FIG. 3 is an end view showing a state in which the core material in the same scene as in FIG. 9 is viewed from the width direction. FIG. 10 is an end view showing a state in which the right side (the other end side) of the core material (the core material main body portion) is held from the scene of FIG. 10 and the core material is being opened. It is an end view which shows the state that the core material was pressed against the arm from the scene of FIG. It is an end view which shows the appearance that the core material was fitted to the arm. It is explanatory drawing which shows the appearance that the core material approached while being tilted with respect to the arm. It is a perspective view which shows the appearance which the core material of another example was seen from the guide part side.

Hereinafter, Example 1 of the blood pressure monitor arm band 10 as an example of the blood pressure monitor arm band according to the present disclosure will be described with reference to the drawings. 8 to 14 show the arm A in a simplified manner in order to facilitate understanding of the action of the core material 20 on the arm A.

The blood pressure cuff 10 of Example 1 according to the embodiment of the blood pressure cuff according to the present disclosure will be described with reference to FIGS. 1 to 15. The sphygmomanometer arm band 10 of Example 1 is used as a sphygmomanometer arm band for measuring blood pressure by wrapping it around an arm A as a subject. In the following, in the sphygmomanometer arm band 10, the direction in which the arm A is wound (the circumferential direction of the arm A in the wound state) is defined as the winding direction P, and the direction orthogonal to the direction (along the arm A in the wound state) is taken. Direction) is the width direction Dw. Further, in the blood pressure monitor arm band 10, the vertical direction is up and down when the palm of the arm A to be wound is oriented upward (upper side in the vertical direction) and the arm A is properly attached to the arm A. The direction Dv is defined, and the direction orthogonal to the vertical direction Dv and the width direction Dw is defined as the left-right direction Dh.

[Structure of arm band]
As shown in FIG. 1, the blood pressure monitor arm band 10 is wrapped around the subject's arm A as a subject. As shown in FIG. 2, the blood pressure monitor arm band 10 includes an air bag 12 and a core material 20 in a cover 11.

As shown in FIGS. 1 to 3, the cover 11 has a strip shape in which the winding direction P is longer with respect to the width direction Dw, and has a front cloth 13 and a back cloth 14 (see FIG. 2). The front cloth 13 is arranged on the outer peripheral side in a state of being wrapped around the arm A, and the back cloth 14 is arranged on the inner peripheral side in a state of being wrapped around the arm A. A flexible material such as cloth or resin is used for the front cloth 13 and the back cloth 14, and the front cloth 13 and the back cloth 14 are joined over the entire circumference of the peripheral edge. As a result, the cover 11 is formed with a storage space 15 for accommodating the air bag 12 and the core material 20 between the front cloth 13 and the back cloth 14.

The cover 11 has a partition cloth 16 provided in the accommodation space 15. The partition cloth 16 partitions the accommodation space 15 into the outer side, that is, the front cloth 13 side, and the inner side, that is, the back cloth 14 side, and is joined together with the front cloth 13 and the back cloth 14 while being parallel to each other. Therefore, the accommodation space 15 is divided into an outer accommodation portion 15a located between the front cloth 13 and the partition cloth 16 and an inner accommodation portion 15b located between the back cloth 14 and the partition cloth 16. Has been done. In the accommodation space 15, the core material 20 is accommodated in the outer accommodation portion 15a, and the air bag 12 is accommodated in the inner accommodation portion 15b.

As shown in FIG. 3 and the like, the cover 11 is provided with a female hook-and-loop fastener 17 and a male hook-and-loop fastener 18. The female hook-and-loop fastener 17 is configured by providing a loop-shaped brush on the entire surface other than the rounded area of the backing cloth 14 (on the left end side when the front view of FIG. 3 is viewed). The male hook-and-loop fastener 18 is configured with hook-shaped brushed parts provided in a part of the rounded area of the outer cloth 13. When the female surface fastener 17 and the male surface fastener 18 are pressed against each other with the blood pressure cuff 10 wrapped around the arm A, the loop-shaped brushed hair and the hook-shaped brushed hair are caught and stick to each other. Therefore, the state in which the blood pressure cuff 10 is wrapped around the arm A is maintained.

As shown in FIG. 2, the air bag 12 is made of, for example, polyvinyl chloride (PVC) and has a rectangular bag shape having a two-layer structure in which two bags are stacked. An air tube 19 (see FIGS. 1, 3, etc.) is connected to the air bag 12, and air is supplied through the air tube 19, so that air is supplied to the inside and the air bag 12 expands. Further, the air bag 12 is contracted by discharging the air inside by discharging the air through the air tube 19.

[Composition of core material]
The core material 20 is formed of, for example, an elastic plate material made of polypropylene (PP), and has a core material main body portion 21 and a guide portion 22 as shown in FIGS. 4 to 6. The core material main body 21 is a portion that is fitted to the arm A so as to be wound by its own elastic force in order to facilitate winding (the work) of the blood pressure monitor arm band 10 around the arm A. The core material main body 21 has a substantially rectangular thin plate shape and is curved in a substantially cylindrical shape. Even if a load that opens a substantially cylindrical shape into a flat plate is applied to the core material main body portion 21, the core material main body portion 21 is restored to the original substantially cylindrical shape if the load is removed. The curvature of the core material main body 21 is set from the viewpoint of assisting the winding around the arm A as a subject. The inner diameter of the cover 11 (blood pressure monitor arm band 10) of the core material main body 21 of the first embodiment is smaller than the thickness of the arm A of a general adult in a state of being accommodated in the outer accommodating portion 15a of the cover 11. It is curved to.

The core material main body 21 has notches 23 provided in the four corners 21a. The four corners 21a are located at the corners of the core material main body portion 21 having a substantially rectangular shape, and two end edges located in the winding direction P (hereinafter, one end is 21b and the other end 21c). There are two ends in the width direction Dw in (let's say). In the first embodiment, each cutout portion 23 has the same size as each other, and the corresponding corner portion 21a is cut into an L shape by two side portions substantially parallel to the contour line of the core material main body portion 21. It has a missing shape.

Each cutout portion 23 of the first embodiment has each corner formed at the time of the cutout rounded. Specifically, since each cutout portion 23 has a notched shape as described above, it has two convex corner portions 23a and one concave corner portion 23b, and each corner thereof. The portions (23a, 23b) are rounded.

By providing the core material main body portion 21 with four notches 23, the central portion in the winding direction P is a wide portion 24 having a relatively large dimension in the width direction Dw, and both end edges (one end 21b) in the winding direction P are formed. , The other end 21c) is a narrow portion 25 having a relatively small dimension in the width direction Dw. The two narrow portions 25 are located in the center of the width direction Dw and protrude from the wide portion 24 in the winding direction P.

Further, the core material main body 21 has an air hole 26. The air hole 26 is for supplying air to the air bag 12 and discharging air from the air bag 12, and penetrates the core material main body portion 21. Here, in the accommodating space 15, the cover 11 accommodates the core material 20 in the outer accommodating portion 15a and the air bag 12 in the inner accommodating portion 15b, so that the core material 20 is air-wound around the arm A. The positional relationship is such that the bag 12 is covered. Therefore, the air hole 26 can be passed through the air tube 19 and the air bag 12, and the air in the air bag 12 can be supplied and discharged. The air bag 12 of the first embodiment has an air tube 19 attached at a central position in the winding direction P.

The air hole 26 of the first embodiment is provided at the upper end position 21U in the core material main body portion 21. The upper end position 21U is a position facing the upper end of the arm A in the winding direction P with the palm of the arm A to be wound facing upward (upper side in the vertical direction). Therefore, the air bag 12 expands toward both sides of the winding direction P centering on the space between the upper end of the arm A and the upper end position 21U, and expands efficiently and appropriately measures the arm A from the viewpoint of measuring blood pressure. You can squeeze.

Further, the core material main body portion 21 has a return portion 27 at the other end 21c. The return portion 27 is formed by being folded outward from the other end 21c, and is provided over the entire area of the width direction Dw at the other end 21c. The return portion 27 forms an inclined surface 27a inclined so as to face the outer side in the radial direction from the bending center C which is the center of the curvature in the core material main body portion 21. Since the inclined surface 27a is inclined in this way, when the core material main body 21 is addressed to the arm A, both end edges (one end 21b, the other end 21c) of the core material main body 21 are opened. A component force is generated in the direction of the arm (see FIG. 12).

The guide portion 22 is a position for guiding the position and the moving direction of the core material main body 21 with respect to the arm A in order to facilitate fitting the core material main body 21 to the arm A. The guide portion 22 has a substantially rectangular thin plate shape and a flat plate shape along a substantially flat surface. In the first embodiment, the guide portion 22 extends from the central position of the narrow portion 25 in the width direction Dw, and the dimension of the width direction Dw is smaller than that of the narrow portion 25 of the core material main body portion 21. Therefore, even if the guide portion 22 is integrally formed with the core material main body portion 21 from the same member, the elastic force is weaker than that of the core material main body portion 21, that is, the guide portion 22 is more easily bent than the core material main body portion 21. ing.

The guide 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 centered on the bending center C at the base of the guide portion 22 (one end 21b of the core material main body portion 21 (narrow portion 25)) on a plane orthogonal to the bending center C (see FIG. 6). It is along the tangent to the circle. As a result, the guide portion 22 extends from one end 21b of the core material main body portion 21 so as to gradually widen the distance from the core material main body portion 21, that is, in a direction away from the core material main body portion 21.

The guide portion 22 has two corners rounded at the tip 22a which is a protruding end. Specifically, the tip 22a has two convex corners because the guide portion 22 has a substantially rectangular shape, but the rounded corners form a substantially semicircular shape. ing.

The guide portion 22 extends to the outside of the end portion of the core material main body portion 21 when viewed in the tangential direction Dt on a plane orthogonal to the bending center C. Specifically, the guide portion 22 positions the tip 22a at least in the tangential direction Dt below the lower end position 21D in a state where the upper end position 21U is positioned upward. The lower end position 21D is a position facing the upper end position 21U via the bending center C in the core material main body 21 when viewed on a plane orthogonal to the bending center C. 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, and if the surface including the lower end position 21D is defined as the lower end reference surface Pr while being orthogonal to the straight line, the guide portion 22 is the lower end. The tip 22a is located below the lower end reference plane Pr, assuming that it intersects the reference plane Pr. From this, the lower end position 21D becomes the end portion of the core material main body portion 21 in the tangential direction Dt at one end 21b.

The guide portion 22 of the first embodiment extends to a position where it intersects with the inclination limit line SL (see FIG. 14). As will be described later, this inclination limit line SL is provided with a notch 23 in the core material main body 21 when the blood pressure monitor arm band 10 is wound around the arm A, so that the core material is provided with respect to the arm A. It is a line which shows the limit that the main body part 21 can be tilted. The inclination limit line SL is assumed to connect two convex corner portions 23a at the cutout portion 23 when the core material main body portion 21 is viewed in the left-right direction Dh. The guide portion 22 is assumed to intersect the inclination limit line SL when viewed in the left-right direction Dh, and the tip 22a is located below the inclination limit line SL.

The core material 20 configured in this way is accommodated in the outer accommodating portion 15a of the accommodating space 15, and as shown in FIG. 7, a part of the blood pressure cuff 10 (on the left end side when viewed from the front). Is in a curled state. As a result, the core material 20 assists in wrapping the blood pressure cuff 10 around the arm A.

[Action of arm band]
Next, a state in which the blood pressure monitor arm band 10 is wrapped around the arm A will be described. The subject opens both ends (one end 21b and the other end 21c of the core material 20) of the blood pressure monitor arm band 10 curled by the core material 20 in the winding direction P, and the curled portion of the blood pressure monitor arm band 10 Is attached to the arm A. Then, the sphygmomanometer arm band 10 applies a load so as to press the arm A inward by the elastic force of the core material 20, so that the circumference of the arm A is between the backing cloth 14 and the surface of the arm A. Generates frictional force in the direction.

As a result, when the curled portion of the sphygmomanometer arm band 10 is attached to the arm A and the remaining portion of the sphygmomanometer arm band 10 is wound, the sphygmomanometer arm band 10 is attached to the arm A. It is possible to prevent rotation (idle rotation). Then, the sphygmomanometer arm band 10 was wound around the arm A by attaching the female type surface fastener 17 provided in the remaining portion to the male type surface fastener 18 in the curled portion. Maintain the state. After that, when the air bag 12 is inflated by being supplied with air through the air tube 19, the blood pressure cuff 10 appropriately presses the arm A due to the expansion by pressing the air bag 12 from the outside. And.

[Action of core material]
Next, the action of the core material 20 when the blood pressure monitor arm band 10 is attached to the arm A will be described with reference to FIGS. 8 to 14. 8 to 14 show that the members other than the core material 20 in the blood pressure monitor arm band 10 are omitted in order to facilitate understanding of the action of the core material 20 on the arm A in the cover 11. Only the core material 20 and the arm A are shown. In the blood pressure monitor arm band 10, since the core material 20 is housed in the cover 11, the core material 20 comes into contact with the arm A via the cover 11. However, in the following, the core material 20 will be in contact with the arm A. The fact that the cover 11 is intervened will be omitted for the sake of facilitating the understanding of the action on the arm A and preventing the wording from being roundabout.

As shown in FIGS. 8 and 9, when the blood pressure monitor arm band 10 is wound around the arm A, the core material 20 has the arm A between both end edges (one end 21b and the other end 21c) of the core material main body 21. It is approached by arm A as if pushing it in. At this time, the core material 20 is provided with a guide portion 22 protruding downward from one end 21b of the core material main body portion 21, and the guide portion 22 is extended to the outside of the core material main body portion 21. It is easy to put the guide portion 22 on the arm A when approaching (see FIGS. 9 and 10). Then, the subject brings the core material main body 21 closer to the arm A while the guide portion 22 is attached to the arm A, so that the one end 21b and the other end 21c which are the cuts of the core main body 21 are formed. The vicinity of and can be brought closer to the arm A.

After that, the subject holds the right side (the other end 21c side) of the core material 20 (the core material main body portion 21) with the guide portion 22 still attached to the arm A and looking at FIG. 10 from the front. By pulling to, the right side of the core material main body 21 is moved with respect to the arm A in the direction in which one end 21b and the other end 21c are opened. Then, as shown in FIG. 11, the guide portion 22 of the core material 20 is addressed to the arm A, so that the guide portion 22 and the arm A on the one end 21b side continuous therewith are hindered from moving. The core material main body 21 is deformed so that the other end 21c is separated from the one end 21b. Therefore, the guide portion 22 has a position guiding action for positioning the arm A between one end 21b and the other end 21c, which are the cuts of the curved core material main body portion 21.

Then, as shown in FIG. 12, the subject moves the core material main body 21 until the one end 21b and the other end 21c are separated from each other by a predetermined distance, so that the return portion 27 of the other end 21c is tilted. It is assumed that the surface 27a hits the arm A. After that, the subject moves the core material main body portion 21 in a direction closer to the arm A (lower side when the front view of FIG. 12 is viewed), so that the inclined surface 27a in the core material main body portion 21 hits the arm A. The component of the force of movement is generated. Then, in the core material main body 21, one end 21b side is hindered from moving to the arm A by the guide portion 22, and the other end 21c side is affected by the component force due to the inclined surface 27a so that the other end 21c is separated from the one end 21b. The distance between both ends is widened. Therefore, the guide 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 when the core material main body portion 21 is fitted to the arm A. After that, the subject brings the core material main body 21 closer to the arm A so as to guide the arm A inward of the core material main body 21 and surround the arm A as shown in FIG. The core material main body portion 21 can be fitted.

Then, the core material 20 is attached to the arm A with the upper end position 21U positioned upward. Therefore, in the core material 20, if the arm A to be wound is in a state where the palm is directed upward (upper side in the vertical direction), the upper end position 21U can be positioned in the vicinity of the artery of the arm A. .. The blood pressure cuff 10 of the first embodiment is provided with an air hole 26 at the upper end position 21U, and the air tube 19 passed through the air hole 26 is attached to the center position of the air bag 12 in the winding direction P. The position can be located near the artery of arm A. Then, the sphygmomanometer arm band 10 can compress the artery at the central position of the air bag 12 in the winding direction P, and can eliminate the directivity of the compression direction (compression strength) that compresses the artery. It is possible to eliminate the influence of the variation in the directivity of the arterial compression for each measurement. As a result, the blood pressure cuff 10 is wrapped around the arm A in a posture that allows the arm A to be appropriately pressed from the viewpoint of measuring the blood pressure.

[Problems of prior art]
Here, the problems of the conventional blood pressure cuff technique will be described. The conventional blood pressure cuff has a shape in which one end of the winding direction of the core material is located outside the other end (direction away from the subject), and one end of the core material is pressed against the subject while being hooked on the subject. Therefore, it is easy to wind the core material around the subject. The core material of the conventional blood pressure monitor arm band is composed only of a material to be wrapped around a subject, that is, a material corresponding to the core material main body portion 21 of the present disclosure, and when the core material is rolled. By gradually changing the curvature of, one end is positioned outside the other end.

Therefore, in the conventional core material, the distance between one end and the other end depends on the degree of change in curvature. Further, in the conventional core material, if the distance between one end and the other end is widened, the curl of the core material becomes tight, so that it becomes difficult to properly fit the core material, and there is a risk that the winding assist function is reduced. There is. On the other hand, in the conventional core material, if the curvature is set from the viewpoint of properly fitting to the subject, the distance between one end and the other end becomes narrow, and it is difficult to widen the distance from the other end while applying one end to the arm. turn into.

[Function of this disclosure]
On the other hand, the core material 20 of the blood pressure monitor arm band 10 of the present disclosure has a core material main body portion 21 having a curvature set from the viewpoint of assisting winding around the arm A (subject), and a core material from one end 21b thereof. It has a guide portion 22 extending in a direction away from the main body portion 21. Therefore, the core material 20 can easily attach the guide portion 22 to the arm A without reducing the function of assisting the winding around the arm A, and the core material main body portion 21 can be used. It can be properly fitted to the arm A.

Here, since the guide portion 22 is made of an elastic plate material as a part of the core material 20, the curled portion of the blood pressure monitor arm band 10 (cover 11) is attached to the arm A. When the remaining portion is wrapped around the arm A, it can be wrapped around the arm A together with the cover 11. At this time, since the elastic force of the guide portion 22 is weaker than that of the core material main body portion 21, the repulsive force when winding the guide portion A around the arm A can be suppressed, and the winding can be facilitated. Further, since the tip 22a of the guide portion 22 is rounded to have a substantially semicircular shape, the force repulsing the winding due to its own elasticity acts locally on the cover 11 (mainly the outer cloth 13). It can be prevented and the cover 11 can be prevented from being damaged. Therefore, the guide unit 22 functions as a load distribution unit that distributes the load on the cover 11 when the tip 22a is pressed against the cover 11. As a result, the guide unit 22 can appropriately assist the winding of the blood pressure monitor arm band 10 around the arm A without obstructing the attachment of the blood pressure monitor arm band 10 to the arm A.

In addition, the core material 20 of the present disclosure has a notch portion 23 at each end portion (one end 21b, the other end 21c) in the winding direction P of the core material main body portion 21, so that the arm is as shown in FIG. Even if it is tilted with respect to A, it is easy to attach it to the arm A. This is due to the following actions. First, the core material 20 is in a state where the lower end edge 25a (one end 21b, the other end 21c) of the narrow portion 25 of the core material main body 21 and the arm A are parallel to each other (see FIG. 9 and the like). On the other hand, the state is not tilted. Since the core material 20 is provided with the notch portion 23, the two convex portions of the notch portion 23 are formed even when the lower end edge 25a is tilted with respect to the arm A from the state where the lower end edge 25a is in contact with the arm A. The core material main body 21 does not come into contact with the arm A until the corner portion 23a is tilted until it comes into contact with the arm A. Then, even if the core material 20 tries to incline beyond the state in which both corner portions 23a are in contact with the arm A, the inclination cannot be increased because any of the corner portions 23a hits the arm A. Therefore, when the core material 20 is viewed in the left-right direction Dh, the straight line connecting the two convex corner portions 23a on the one end 21b side is the inclination limit line SL indicating the limit of inclination with respect to the arm A (arm in FIG. 14). It overlaps with the upper edge of A). On the other hand, the core material having no notched portion cannot be tilted because the core material main body comes into contact with the arm even if the core material is tilted from a non-tilted state. Therefore, the core material 20 can be attached by allowing the inclination with respect to the arm A by providing the notch portion 23. This means that in the blood pressure monitor arm band 10, for example, from a state where the lower end edge 25a side of the core material main body 21 is in contact with the arm A, it is difficult to wear it while maintaining it so as not to tilt it, or it is difficult to hold it. When the subject holds the core material main body 21 at the position, it is possible to attach the core material main body 21 while tilting it with respect to the arm A. As described above, the core material 20 can be easily attached to the arm A by providing the notch portion 23.

Further, the core material 20 is tilted with respect to the arm A as shown in FIG. 14 before the state shown in FIGS. 9 and 10 is reached when the core material 20 is brought closer to the arm A from FIG. 8 by providing the notch portion 23. Even if it is, it is easy to attach it to the arm A. This is due to the following. The core material having no notch (hereinafter, also referred to as the core material without notch) has the same dimensions as the wide portion 24 in the width direction Dw at the portion corresponding to both narrow portions 25 in the core material main body. As a result, the corner portion projects below the core material 20 when the front view of FIG. 14 is viewed. Therefore, when the core material without a notch is brought closer to the arm A in the same posture as the core material 20 in FIG. 14, the core material is located farther from the arm A than the core material 20 (upper side when the front view of FIG. 14). The main body (the corner thereof) comes into contact with the arm A. Then, even if the core material without a notch is provided with the same guide portion as the core material 20, the guide portion cannot be addressed to the arm A, or only the tip is addressed to the arm A. It will be. Then, the core material without a notch cannot use the guide portion, or the guide portion cannot sufficiently stop the movement of one end side with respect to the arm A with only the tip, and has the effect of widening the distance between one end and the other end. You won't be able to get it. On the other hand, the core material 20 can be in contact with the arm A because the lower end position of the core material main body 21 in the posture shown in FIG. 14 can be made shorter than the core material without the notch by providing the notch portion 23. The position to be used can be made closer. Therefore, as shown in FIG. 14, the core material 20 can bring the guide portion 22 into contact with the arm A reliably and sufficiently, so that the guide portion 22 can function effectively.

Further, in addition to these, in the core material 20, by providing the notch portion 23, the interval for pushing the arm A (hereinafter, also referred to as the insertion interval) can be increased, which is also referred to as the insertion interval to the arm A. Contributes to easy mounting. This will be described with reference to FIG. First, in the core material 20, the core material main body portion 21 has a wide portion 24 and a narrow portion 25 by providing a notch portion 23. In the core material 20, one end 21b and the other end 21c that define the insertion interval are close to each other in the narrow portion 25 (the lower end edge 25a thereof). On the other hand, 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 between the two corner portions 23a (insertion interval). ) Is larger than the insertion interval in the narrow portion 25. Therefore, in the core material 20, the arm A is pushed directly into the insertion interval (between one end 21b and the other end 21c) in the narrow portion 25 by utilizing the insertion interval between the both corner portions 23a of the wide portion 24. In comparison with this, since the arm A can be easily pushed in, it can be easily attached to the arm A. Even in this case, in the core material 20, even if the arm A is pushed into the insertion interval of the wide portion 24 (both corner portions 23a), the insertion interval of the narrow portion 25 (one end 21b and the other end 21c) is subsequently inserted. ), Since it is necessary to push the arm A into the above-mentioned tilt limit line SL, there is no change in indicating the limit of tilt with respect to the arm A.

Since the core material 20 of the first embodiment has notches 23 at both corners (21a) in the width direction Dw at each end (one end 21b, the other end 21c), the core material 20 is along the arm A. It can be tilted on either side of the direction. Therefore, the core material 20 can be tilted in the same manner with respect to the left arm A and the right arm A as a subject without any difference, and the blood pressure monitor arm band 10 can be easily attached. Because it can be used, usability can be improved. In addition, the blood pressure monitor arm band 10 may be worn by the subject himself / herself or by another person such as a caregiver other than the subject, and may be worn by the subject himself / herself. The habit of tilting differs from person to person regardless of whether it is another person or not, but since it can be tilted toward the one that is easier to wear, usability can be improved.

In particular, in the core material 20 of the first embodiment, when viewed in the left-right direction Dh, the guide portion 22 extends beyond the inclination limit line SL. Therefore, the core material 20 should have the guide portion 22 attached to the arm A even when the core material main body portion 21 is tilted to the maximum inclination where the both corner portions 23a of the cutout portion 23 come into contact with the arm A. Can be done. As a result, the core material 20 can obtain the effects of the position guidance action and the movement guidance action by the guide portion 22 described above even when the core material main body portion 21 is tilted with respect to the arm A. Therefore, the core material 20 can be easily attached to the arm A.

[Effects of the present disclosure]
The blood pressure monitor arm band 10 of the embodiment of the blood pressure monitor arm band according to the present disclosure can obtain the following effects.

In the blood pressure monitor arm band 10, the core material 20 housed in the cover 11 extends in a direction away from the core material main body 21 surrounding the subject in the winding direction P and one end 21b thereof with respect to the core material main body 21. It has a guide portion 22 and. Then, in the blood pressure monitor arm band 10, in the core material 20, the guide portion 22 is larger than the end portion (21D) of the core material main body portion 21 in the tangential direction Dt at one end 21b with respect to the curvature of the core material main body portion 21. It extends to the outside. Therefore, in the blood pressure monitor arm band 10, the arm A is guided in a direction in which the one end 21b and the other end 21a can be easily spread from the state where the guide portion 22 is applied to the arm A, so that the one end 21b and the other end are guided. It can be expanded with 21a. As a result, the blood pressure monitor arm band 10 can be easily attached to the subject.

Further, the blood pressure monitor arm band 10 has a guide portion 22 having a smaller dimension in the width direction Dw than the core material main body portion 21. Therefore, the sphygmomanometer arm band 10 is rounded in the sphygmomanometer arm band 10 because the guide portion 22 can be easily bent, that is, the elastic force can be weakened, as compared with the case where the core material main body portion 21 has the same dimensions. The repulsive force from the guide portion 22 when winding the remaining portion around the arm A can be suppressed, and the winding can be facilitated.

Further, the blood pressure monitor arm band 10 extends the guide portion 22 along the tangential direction Dt. Therefore, the blood pressure monitor arm band 10 can extend the guide portion 22 from the core material main body portion 21 in the tangential direction Dt to the outside at the shortest distance, and it is easy to address the guide portion 22 to the arm A. Can be made.

The blood pressure monitor arm band 10 has a notch portion 23 in the core material main body portion 21 in which the corner portions 21a at both ends (one end 21b and the other end 21c) in the winding direction P are notched. Therefore, the blood pressure monitor arm band 10 can be easily attached to the arm A even when it is tilted with respect to the arm A.

The blood pressure monitor arm band 10 is provided with a notch 23 at each of the two corners 21a in the width direction Dw of the core material main body 21. Therefore, the blood pressure monitor arm band 10 can be tilted with respect to the arm A in any direction, and can be easily attached to the arm A.

The blood pressure monitor arm band 10 extends the guide portion 22 to a position where it intersects the inclination limit line SL defined by the provision of the notch portion 23. Therefore, even if the blood pressure monitor arm band 10 is tilted with respect to the arm A, the guide portion 22 can be attached to the arm A, and the guide portion 22 can perform a position guidance action and a movement guidance. The effect of action can be obtained.

The blood pressure monitor arm band 10 has a substantially semicircular shape in which the tip 22a of the guide portion 22 is rounded so as to function as a load distribution portion that distributes the load on the cover 11 when pressed against the cover 11. Therefore, the blood pressure monitor arm band 10 can prevent the guide portion 22 from damaging the cover 11 when the cover 11 is wound around the arm A.

Therefore, the blood pressure monitor arm band 10 of Example 1 as the blood pressure monitor arm band according to the present disclosure accommodates the core material 20 and can be easily fitted to the subject.

Although the blood pressure cuff of the present disclosure has been described based on the first embodiment, the specific configuration is not limited to the first embodiment, and the gist of the invention according to each claim is within the scope of the claims. Design changes and additions are permitted as long as they do not deviate from.

For example, in Example 1 described above, the core material 20 is made of resin. However, the core material 20 has a core material main body portion 21 and a guide portion 22, and even if a load that opens a substantially cylindrical shape into a flat plate is applied, the original substantially cylindrical shape is obtained if the load is removed. It is not limited to the configuration of Example 1 as long as it has elasticity to restore the shape.

Further, in the first embodiment described above, in the core material 20, the core material main body portion 21 and the guide portion 22 are integrally configured. However, the guide portion 22 extends in a direction away from one end 21b of the core material main body 21 with respect to the core material main body 21, and extends to the outside of the end portion of the core material main body 21 in the tangential direction Dt. If this is the case, it may be configured separately from the core material main body 21 and attached to the core material main body 21, and is not limited to the configuration of the first embodiment. When the guide portion 22 is formed separately from the core material main body 21, the guide portion 22 is more rigid (flexible), durable, and the like than the core main body 21 from the viewpoint of obtaining the effects of the position guidance action and the movement guidance action. Materials optimized with a weak elastic force can be used. In this case, for example, the guide portion 22 has different members on the vicinity side of one end 21b of the core material main body portion 21 and the tip end 22a side of the guide portion 22, and the near side is partially from the core material main body portion 21. It is also possible to have a weak elastic force.

Further, in the first embodiment described above, the load distribution portion is formed by rounding the tip 22a of the guide portion 22. However, the load balancing unit may be any as long as it distributes the load on the cover 11 when pressed against the cover 11, and is not limited to the configuration of the first embodiment. An example thereof is shown in FIG. The load distribution portion of FIG. 15 is provided with a protrusion 28 at the tip 22a of the guide portion 22. The protrusions 28 are formed by protruding from the tip 22a on both sides in the width direction Dw. Since the protrusion 28 can increase the contact area of the tip 22a with respect to the cover 11, the load on the cover 11 can be dispersed.

In the first embodiment described above, the guide portion 22 is assumed to extend along the tangential direction Dt. However, the guide portion 22 extends outward from the end portion of the core material main body portion 21 (below the lower end reference surface Pr shown in FIG. 6) in the tangential direction Dt while extending in a direction away from the core material main body portion 21. If so, the extending direction may be appropriately set, and is not limited to the configuration of the first embodiment. The guide portion 22 may be curved and extended in the left-right direction Dh or the width direction Dw with respect to the tangential direction Dt, or may be inclined and extended with respect to the tangential direction Dt. In addition, the guide portion 22 may be partially curved or inclined with respect to the tangential direction Dt from the vicinity of the base end (one end 21b) while extending along the tangential direction Dt. Further, although the guide portion 22 has a long rectangular shape (excluding the tip 22a), the shape may be appropriately set so as to change the dimension in the width direction Dw, and is limited to the configuration of the first embodiment. Not done. In addition, although the guide portion 22 is a single long one, it may be composed of a plurality of protrusions so that a plurality of rectangular portions extend in the tangential direction Dt. The configuration is not limited to the first embodiment.

In the first embodiment described above, the core material 20 is provided with a notch 23. However, the cutout portion 23 facilitates attachment to the subject even when the core material 20 is tilted with respect to the subject (arm A), and may not be provided. It is not limited to the configuration of Example 1.

In the first embodiment described above, the air bag 12 has a two-layer structure in which two bag bodies are stacked. However, the air bag 12 may be one bag body or may have a multi-layer structure in which three or more bag bodies are stacked. Further, the air bag 12 may be replaced with a fluid bag into which the liquid flows into the air bag 12.

In Example 1 described above, an example is shown in which the blood pressure cuff of the present disclosure is applied to a blood pressure monitor worn on an arm as a subject. However, the blood pressure cuff of the present disclosure can also be applied to a sphygmomanometer worn on the wrist as a subject.

In the first embodiment described above, the return portion 27 having the above configuration is provided at the other end 21c of the core material main body portion 21. However, the return portion 27 is inclined to generate a component force in the direction of opening both end edges (one end 21b, the other end 21c) of the core material main body portion 21 when the core material main body portion 21 is addressed to the arm A. As long as the surface 27a is formed, the configuration may be appropriately set, and the configuration is not limited to the configuration of the first embodiment.

10 Blood pressure cuff 11 cover 20 core material 21 core material body 21a corner 21b one end 21c other end 22 guide part 22a (as an example of load distribution part) tip 23 notch 28 (as an example of load distribution part) ) Protrusion A (as an example of the subject) Arm Dt Tangent direction Dw Width direction P Winding direction SL Tilt limit line

Claims (3)

A strip-shaped cover that is wrapped around the subject and has a long winding direction with respect to the width direction.
A core material housed in the cover, having elasticity and being curved in the winding direction, is provided.
The core material has a core material main body portion that surrounds the subject in the winding direction, and a guide portion that extends from one end of the core material main body portion in the winding direction away from the core material main body portion. death,
The guide portion has a weaker elastic force at least in the vicinity of one end thereof than the core material main body portion, and the end portion of the core material main body portion is in a tangential direction at the one end with respect to the curvature of the core material main body portion. A sphygmomanometer arm band, which extends to the outside and has a smaller dimension in the width direction than the core material main body. A strip-shaped cover that is wrapped around the subject and has a long winding direction with respect to the width direction.
A core material housed in the cover, having elasticity and being curved in the winding direction, is provided.
The core material has a core material main body portion that surrounds the subject in the winding direction, and a guide portion that extends from one end of the core material main body portion in the winding direction away from the core material main body portion. death,
The guide portion has a weaker elastic force at least in the vicinity of one end thereof than the core material main body portion, and the end portion of the core material main body portion in the tangential direction at the one end with respect to the curvature of the core material main body portion. An arm band for a sphygmomanometer, which extends to the outside of the sphygmomanometer and extends along the tangential direction at least in the vicinity of one end. A strip-shaped cover that is wrapped around the subject and has a long winding direction with respect to the width direction.
A core material housed in the cover, having elasticity and being curved in the winding direction, is provided.
The core material surrounds the subject in the winding direction and is fitted to the subject so as to be wrapped around the subject by its own elastic force, and the core material main body portion in the winding direction of the core material main body. It has a guide portion extending from one end in a direction away from the core material main body portion, and has.
The guide portion has a weaker elastic force at least in the vicinity of one end than the core material main body portion, and the end portion of the core material main body portion is in a tangential direction at the one end with respect to the curvature of the core material main body portion. A sphygmomanometer arm band characterized by extending to the outside.

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