WO2005079665A1

WO2005079665A1 - Blood pressure manometer

Info

Publication number: WO2005079665A1
Application number: PCT/JP2005/002761
Authority: WO
Inventors: Kazuhiro Ide; Takahiro Iizawa
Original assignee: Matsushita Electric Works, Ltd.
Priority date: 2004-02-24
Filing date: 2005-02-22
Publication date: 2005-09-01
Also published as: JP2005237424A; JP4363220B2; TWI276428B; TW200533316A

Abstract

Blood pressure manometer (10) with which blood pressure is measured through application of blood flow obstruction bag (13) of cuff belt (12) to a measuring site, such as wrist (1), and expansion of the blood flow obstruction bag (13) to thereby achieve compression and blood flow obstruction of the arteries (2,3). Between the cuff belt (12) and the blood flow obstruction bag (13), there is interposed flexible elastomer plate (11A). The elastomer plate (11A) is comprised of, arranged around the measuring site, artery-side flat portion (11a), slanting portions (11b) continuing from both the distal ends of the flat portion (11a) while broadening downward, and curved portions (11c) continuing from the distal ends of the slanting portions (11b) while narrowing downward. When the measuring site is wrist (1), the elastomer plate by means of the flat portion (11a) presses palm-side highly protrudent tendon tissues to flatness, and by means of the slanting portions (11b) presses the peripheral tissue of the arteries. As a result, the height difference between the tendon tissue and the peripheral tissue of the arteries is reduced, so that the blood flow obstruction bag (13) is applied to the wrist (1) with uniform pressure. Consequently, the pressure by the blood flow obstruction bag (13) is effectively conveyed to the arteries, resulting in accurate measuring of blood pressure.

Description

Specification

Blood pressure

Technical field

The present invention relates to a sphygmomanometer capable of applying a blood cuff in a cuff band to an artery at a measurement site with a uniform pressing force.

Background art

[0002] Conventionally, there is a sphygmomanometer that measures blood pressure by applying a blood cuff in a cuff band to a measurement site (a wrist, an upper arm, an ankle, etc.) and compressing and blocking an artery by inflation of the blood cuff (oscillometric method). .

[0003] When blood pressure is measured with a sphygmomanometer as described above, for example, at the wrist, as shown in FIG. 8 (b), the cross-sectional shape of the wrist 1 indicates that the radial side branched from the brachial artery on the palm side of the wrist 1 The artery 2 and ulnar artery 3 are the elastic structures of the tendon tissues 4 such as the palmaris longus tendon, radial carpal flexor tendon, ulnar carpi flexor tendon, finger flexor tendon, and the projections of the radius 5 and ulna 6. Between high (hard) tissues, and these hard tissues are more likely to be slightly elevated than the arteries, especially for those with low body fat, the surrounding tissues of the arteries are gradually depressed. You may have.

[0004] Therefore, as shown in Figs. 8 (a) and 8 (b), the blood sac 8 is applied to the wrist 1 via the C-shaped clip plate 9 of the cuff band 7, and the artery is expanded by the expansion of the blood sac 8. When performing blood pressure measurement with compression ischemia, even if the arteries 2 and 3 are simultaneously compressed, the compression force is not sufficiently transmitted to the arteries 2 and 3 due to the obstruction of the hard tissue 4 etc. Unless the internal pressure is considerably high, the two arteries 2 and 3 cannot be simultaneously compressed and blocked.

[0005] For this reason, a method of applying a blood blocking bag to each of two arteries (Patent Document 1), a method of forming a deformed portion on a clip plate (elastic plate) (Patent Document 2), (Patent Document 3).

Patent Document 1: JP 2003-290156 A

Patent Document 2: Japanese Patent No. 3235602

Patent Document 3: JP-A-61-238229

Disclosure of the invention

[0006] However, the cross-sectional shape of a wrist or the like varies widely from person to person. Even so, there was a problem that it was not possible to apply the blood-bag to the two arteries at the measurement site with even pressure.

[0007] The present invention has been made to solve the above problem, and provides a sphygmomanometer capable of accurately measuring a blood pressure by applying a blood cuff of a cuff band to an artery at a measurement site with an equal pressing force. It is intended to be.

[0008] In order to solve the above problems, a sphygmomanometer according to the present invention applies a blood cuff in a cuff band to a measurement site such as a wrist and performs blood pressure measurement by compressing and blocking an artery by expanding the blood cuff. A flexible elastic body plate is interposed between the cuff band and the blood bag, and the elastic body plate has a flat portion on the artery side and a flat portion in the circumferential direction of the measurement site. It is characterized in that it is constituted by an inclined portion extending downward and continuous at both ends of the portion, and a curved portion continuous downwardly and narrowly connected to each end of the inclined portion.

[0009] According to the present invention, when the measurement site is the wrist, the elastic body plate flattens the flattened tendon tissue on the palm side with the flat portion, and then presses the peripheral tissue of the artery with the inclined portion. As a result, the difference in height between the tendon tissue and the surrounding tissue of the artery is reduced, so that the blood-blocking bag is evenly applied to the measurement site, and the compression force of the blood-blocking bag is efficiently transmitted to the artery. As a result, blood pressure can be measured accurately. In addition, the flat portion and the inclined portion stabilize the mounting position with respect to the wrist, and the curved portion wraps around the back of the wrist, so that it is less likely to be displaced from the wrist.

Brief Description of Drawings

FIG. 1 (a) is a cross-sectional view when a sphygmomanometer provided with an elastic plate according to the first embodiment of the present invention is mounted on a wrist, and (b) is an elastic plate according to the first embodiment. (C) is a front view of (a).

FIG. 2 (a) is a side sectional view of a flat portion of an elastic body plate according to a second embodiment of the present invention, (b) is a front view of the elastic body plate, and (c) is an elastic body attached to a wrist. It is a side sectional view of a board.

FIG. 3 is a modification of the second embodiment of the present invention, wherein (a) is a side cross-sectional view of a flat portion of the elastic plate of Modification 1, and (b) is a side cross-section of the elastic plate mounted on the wrist. FIG. 7C is a side cross-sectional view of a flat portion of the elastic body plate of Modification Example 2, and FIG. 9D is a side cross-sectional view of an elastic body plate attached to a wrist.

FIG. 4 is an elastic plate according to a third embodiment of the present invention, wherein (a) is a plan view and (b) is a front view. FIG. 5 is an elastic plate according to a fourth embodiment of the present invention, wherein (a) is a plan view and (b) is a front view.

FIG. 6 is a modification of the elastic plate according to the fourth embodiment of the present invention, wherein (a) is a front view of modification 1, (b) is a front view of modification 2, and (c) is a torsion spring. FIG. 3D is a front view of the hinge portion provided, and FIG. 4D is a front view of the hinge portion provided with a hinge shaft having a static torque.

[FIG. 7] (a)-(c) are front views of an elastic plate according to a fifth embodiment of the present invention.

[Fig. 8] (a) is a side cross-sectional view of an elastic body plate on which a conventional blood pressure monitor provided with an elastic body plate is mounted on a wrist, and (b) is a view when the blood pressure monitor of (a) is mounted on a wrist. FIG. 1C is a cross-sectional view of a wrist.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a sphygmomanometer 10, wherein (a) is a cross-sectional view when worn on the wrist 1, (b) is a plan view of an elastic body plate 11 A of the first embodiment, and (c) (A) is a front view of (a).

[0013] As shown in FIG. 1 (a), the blood pressure monitor 10 is wound around the cuff band 12 around the wrist 1 with the blood-blocking bag 13 applied to the palm side of the wrist 1, and shifted with the hook-and-loop fastener 14 or the like. Fix so that there is no.

A pump 16, an exhaust valve 17, a pressure sensor 18, and the like are provided in the sphygmomanometer main body 15, and these are connected by a pipe 19 for supplying and discharging air to and from the blood blocking bag 13. At the same time, the operation timing is controlled by the control unit 20.

[0015] That is, when the switch is turned on to start measuring the blood pressure, air is supplied from the pump 16 to the blood blocking bag 13 via the pipe 19, and the wrist 1 is compressed until the blood blocking bag 13 reaches a predetermined pressure. Then, blood is blocked from the radial artery 2 and the ulnar artery 3. Then, when it is confirmed by the pressure sensor 18 that the pressure has reached the predetermined pressure, the pump 16 is stopped, and the air in the blood blocking bag 13 is discharged by the exhaust valve 17 so as to reduce the pressure at a constant speed. At the same time, the pulse wave components of the radial artery 2 and the ulnar artery 3 are extracted by a filter or the like, and the blood pressure value is calculated using a predetermined algorithm.

[0016] When the wrist 1 is pressed by the blood-blocking bag 13 to block blood between the radial artery 2 and the ulnar artery 3, when the tendon tissue 4, the radius 5, the ulna 6 and the like press the respective arteries 2 and 3, As a result, it is not possible to apply the blood bag 13 to the two arteries 2 and 3 of the wrist 1 with even pressure.

[0017] Therefore, in the sphygmomanometer 10, the elastic body of the first embodiment is interposed between the cuff band 12 and the blood blocking bag 13. The plate 11A is interposed and fixed.

As shown in FIGS. 1 (b) and 1 (c), the elastic body plate 11A has flat portions 11a on the side of the arteries 2 and 3 in the circumferential direction of the wrist 1, and both ends of the flat portions lib. It is composed of an inclined portion l ib that extends downward and continues, and a curved portion 11c that extends downward and continues at each end of the inclined portion l ib.

The elastic body plate 11A is an integral body in which a flat portion 11a, an inclined portion lib, and a curved portion 11c are integrally connected at bent portions lid and lie, respectively.

[0020] The elastic body plate 11A is formed by, for example, bending and molding a flexible material such as plastic having a thickness t of 1 to 2 mm and a width W of about 50 mm in a heated state, or by injection molding with a mold. It can be easily molded.

In the sphygmomanometer 10 according to the first embodiment, as shown in FIG. 1 (a), the elastic body plate 11A allows the large raised tendon tissue 4 on the palm side of the wrist 1 to move in a substantially vertical direction with the flat portion 11a. By holding the tissue around the arteries 2 and 3 flat from the vertical direction with the inclined part lib, the height difference between the tendon tissue 4 and the tissue around the arteries 2 and 3 is reduced. In order to reduce the size, blood pressure measurement is applied to the palm side of the wrist 1 with an even compression force, and the compression force of the blood insulation bag 13 is efficiently transmitted to the arteries 2 and 3. You will be able to do it accurately.

[0022] Furthermore, the flat portion 11a and the inclined portion lib stabilize the mounting position on the wrist 1, and the curved portion 11c wraps around the back of the wrist 1, so that it is less likely to be displaced from the wrist 1.

[0023] Further, since the flat part 11a, the inclined part lib, and the curved part 11c are integrally connected by a bending force S-shaped part lid, lie, based on data of many people, By setting the angles of the bends l ld and l ie to match the shape of the standard wrist 1 with the most distribution, it is easier to apply the wrist 1 to a thin wrist, a person to a thick wreath, or a person.

FIG. 2 shows an elastic plate 11B of the second embodiment, (a) is a side sectional view of a flat portion 1 la of the elastic plate 11B, (b) is a front view of the elastic plate 11B, (C) is a side sectional view of the elastic plate 11B attached to the wrist 1.

The difference from the elastic plate 11A of the first embodiment is that the flat portion 11a, the inclined portion l ib and the curved portion 11c of the elastic plate 11B have both ends in the longitudinal direction of the wrist 1. This means that thick portions l lg were formed in 1 If, respectively. This thick part llg is preferably, for example, about 2 mm thick and about 5 mm wide. Re, but is not limited to this. The thick portion Ilg may be the same material as the elastic plate 11B, but is preferably a material that is softer than the elastic plate 11B and harder than the wrist 1.

[0026] The thick part l lg may be formed at least in the flat part 11a and the inclined part l ib.

[0027] In the case of the elastic plate 11B of the second embodiment, the blood-blocking bag 13 has a small expansion at the end 1If and a small compression force at the end 1If as compared with the center, and therefore has a thick wall at the end llf. By forming the part llg, the adhesion between the blood bag 13 and the wrist 1 is improved, and the measurement accuracy is improved.

FIGS. 3 (a) and 3 (b) show a first modification of the elastic plate 1 IB of the second embodiment, wherein (a) is a side sectional view of the flat portion 11a of the elastic plate 11B, and FIG. () Is a side sectional view of the elastic plate 1 IB attached to the wrist 1.

[0029] The thick portion l lh is formed in a gradient shape such that the thickness decreases from the end l lg toward the center.

As described above, since the thick portion l lh is provided with a gradient, the thickness does not change rapidly, so that the adhesion between the blood bag 13 and the wrist 1 becomes better, and the measurement accuracy is improved. I will do it.

[0031] Further, as in a modified example 2 shown in FIGS. 3 (c) and 3 (d), the thick portion l lh (similarly to the thick portion l lg) includes at least one end in the longitudinal direction of the wrist 1. The same effect can be obtained even if it is formed only on the central side, considering the direction a of the arterial blood flow.

FIG. 4 shows an elastic plate 11C according to the third embodiment. (A) is a plan view of the elastic plate 11C, and (b) is a front view of the elastic plate 11C.

The difference from the elastic plate 11A of the first embodiment is that, in the elastic plate 11C, the flat portion 11a is divided substantially near the center, and this divided portion is connected to be openable and closable by the hinge portion 22. That is. Note that the division of the flat portion 11a is not limited to substantially the vicinity of the central portion, but may be at least one or more.

In the case of the elastic plate 11C of the third embodiment, since the elastic plate 11C can be opened and closed by the hinge portion 22 of the flat portion 11a, it is easy to fit a person with a thin wrist 1 to a person with a large wrist. .

[0035] Even with the wrist 1 having various curvatures, the hinge 22 adjusts the opening and closing angle of the elastic body plate 11C. Since it can be knotted, the adhesion to the wrist 1 is further improved. In other words, the cross section of the wrist 1 does not have a regular elliptical shape as shown in FIG. 1 (a) or FIG. 8 (b). However, since the shape is different, the opening / closing angle of the elastic body plate 11C can be adjusted to match the difference in shape, so that the adhesion to the wrist 1 is improved.

FIG. 5 shows an elastic plate 11D of the fourth embodiment, (a) is a plan view of the elastic plate 11D, and (b) is a front view of the elastic plate 1ID.

[0037] The difference from the elastic plate 11A of the first embodiment is that the elastic plate 11D is divided by a bent portion lid between the flat portion 11a and the inclined portion lib on one side (left side in the figure). Then, the divided portion is connected to be openable and closable by a hinge portion 22, and the flat portion 11a and the inclined portion l ib on the other side (the right side in the figure) are combined with the integrated member integrally connected by the bent portion lid. That is.

In the case of the elastic plate 11D of the fourth embodiment, the hinge portion 22 allows the inclined portion l ib on one side to be openable and closable with respect to the flat portion 11a. In addition, the opening and closing angles of the inclined portion lib and the curved portion 11c can be adjusted by the hinge portion 22, so that the adhesion to the wrist 1 is further improved. Further, since the inclined portion l ib and the curved portion 11c can be folded inward by the hinge portion 22 (see the two-dot chain line b), the sphygmomanometer 10 when not in use can be downsized to improve the storage capacity. become. Further, when the sphygmomanometer 10 is mounted on the wrist 1, the flat part 11a integrally connected by the bent parts 11d and 11e, the inclined part 11b on the other side, and the curved part 11c are attached to the wrist 1. When it is hooked on the long diameter portion and then attached so as to cover the palm side, the attachment operation is facilitated and the attachment displacement is reduced.

Further, as in Modification Example 1 shown in FIG. 6 (a), it is divided at a bent portion lie between one inclined portion 1lb and a curved portion 1lc, and this divided portion is hinged. 22 can also be connected to open and close freely. Although not specifically shown in the drawings, the flat part 11a is divided by a bent part lid between the flat part 11a and the inclined part lib on one side. The bent portion 1 le between the inclined portion 1 lb and the curved portion 1 lc can be divided and the divided portion can be opened and closed by the hinge portion 22.

[0040] Further, as in a modified example 2 shown in FIG. Can be divided by the bent portion lid, and these divided portions can be connected to each other by the hinge portion 22 to be opened and closed. Although not specifically shown, it is also possible to divide by a bent portion lie between each inclined portion lib and the curved portion 11c, and to connect these divided portions by hinge portions 22 so as to be freely opened and closed.

That is, in the configurations shown in FIGS. 4, 5, and 6 (a), the elastic plates 11C and 11D have high flexibility with respect to the shape of the wrist 1 due to the hinge portion 22, but fix the blood blocking bag 13. Since the force is weak, the blood-blocking bag 13 may expand unevenly in the left and right directions. Thus, by providing the hinge portions 22 at symmetrical positions as in the configuration of FIG. 6 (b), the blood blocking bag 13 expands and shrinks uniformly in the left and right directions, so that the pressure on the arteries 2 and 3 is improved.

[0042] In the elastic plates 11C and 11D having the hinge portions 22 shown in Figs. 4, 5, and 6 (a) and (b), as shown in Fig. 6 (c), the torsion in the folding direction c is applied to the hinge portions 22. If the torsion spring 23 is provided, after attaching the sphygmomanometer 10 to the wrist 1, the elastic plates 11C and 11D are fixed to the wrist 1 while being urged inward by the torsion. The displacement is reduced.

As shown in FIG. 6D, if the hinge shaft 24 of the hinge portion 22 has a stationary tongue like a spring pin, the elastic plates 11C and 1ID are attached to the wrist 1. Then, the elastic plates 11C and 11D are fixed to the wrist 1 in a stationary state by the stationary torque, so that the positional shift at the time of mounting is reduced.

FIGS. 7A and 7C are front views of an elastic plate 11E of the fifth embodiment, respectively.

As shown in FIG. 7A, the difference from the elastic body plate 11A of the first embodiment is that the curved portion 11c has a length L1 on one side (right side) and a length L1 on the other side (left side). That is, L2 is set to be long (in other words, one length L2 is shorter than the other length L1).

With this configuration, the wrist 1 is not symmetrical in the left and right radii of curvature, so if the radius of curvature is small, the side is long, and the curved portion 1lc is attached, the wrist 1 is The balance becomes better. Also, when attaching the sphygmomanometer 10 to the wrist 1, if the long curved portion 11c is hooked on the long diameter portion of the wrist 1 and then covered so as to cover the palm side, the mounting operation becomes easy and the mounting displacement is reduced. .

As shown in FIG. 7 (b), the difference from the elastic body plate 11A of the first embodiment is that the bending portion 11c Is to set the elasticity of one side (left side) higher than that of the other side (right side: see cross-hatching).

[0048] In this configuration, the wrist 1 is not symmetrical in the left and right radii of curvature. Therefore, if the highly elastic curved portion 11c is attached to the side having the smaller radius of curvature, the left and right bal- ances of the wrist bag 13 when the blood blocking bag 13 inflates are expanded. Will be better. Also, when attaching the sphygmomanometer 10 to the wrist 1, hooking the curved portion 11c with high elasticity to the long diameter of the wrist 1 so that the force covers the palm side also facilitates the attaching operation and minimizes misalignment. Become.

As shown in FIG. 7 (c), the difference from the elastic body plate 11A of the first embodiment is that the curved portion 11c has an angle が 2 with the inclined portion l ib (one side (right side)). On the other hand, the other (left) angle θ 1 must be set small.

[0050] With this configuration, the wrist 1 does not have symmetrical left and right radii of curvature. Therefore, if the smaller angle is attached to the side with the smaller radius of curvature, the right and left balance is improved when the blood bag 13 is inflated. . When the sphygmomanometer 10 is worn on the wrist 1, if the curved portion 11c with a small angle is hooked on the long diameter portion of the wrist 1 and the force is covered so that the palm side is covered, the wearing operation becomes easy and the misalignment occurs. Less.

In the description of each of the above embodiments, the measurement site is the wrist 1, but it goes without saying that the measurement may be an upper arm, an ankle, or the like.

[0052] As described above, the sphygmomanometer of the present invention is a sphygmomanometer that measures the blood pressure by placing the blood cuff of the cuff band on a measurement site such as the wrist and compressing and blocking the artery by expanding the blood cuff. In addition, a flexible elastic plate is interposed between the cuff band and the blood bag, and the elastic plate has a flat portion on the artery side and a flat portion in the circumferential direction of the measurement portion. At both ends of the sloping portion, and a curved portion extending downward and continuing at each end of the inclined portion.

[0053] In the sphygmomanometer according to the present invention, the elastic body plate may have a configuration in which the flat part, the inclined part, and the curved part are integrally connected to each other by a bent part. .

[0054] With this configuration, the elastic body plate is an integrated body in which the flat portion, the inclined portion, and the curved portion are integrally connected at the bent portion, and therefore has the largest distribution based on data of a large number of people. By setting the angle of the bend so that it fits the shape of a standard wrist, etc. It is easy for people to apply to people.

[0055] In the sphygmomanometer of the present invention, at least the flat portion and the inclined portion of the elastic body plate have a thick portion formed at at least one end in the longitudinal direction of the measurement site. Can be.

[0056] With this configuration, the blood-blocking bag has a small expansion at the end compared to the central portion and has a weak compression force. Therefore, by forming a thick portion at the end, the blood-blocking bag and the wrist can be formed. And the measurement accuracy is improved.

[0057] In the sphygmomanometer of the present invention, the elastic body plate may have a configuration in which a flat portion is divided into at least one or more portions, and the divided portions are openably and closably connected by hinge portions.

[0058] According to this configuration, the elastic body plate can be opened and closed by the hinge portion, so that it is easy to fit a person with a thin wrist or the like to a person with a large wrist. In addition, the opening / closing angle of the elastic body plate can be adjusted at the hinge portion even for wrists having various curvatures, so that the adhesion to the wrists and the like becomes better, and the measurement accuracy is improved. Become like

[0059] In the sphygmomanometer of the present invention, the elastic body plate is divided at least at one or more of the flat portion and the one-side inclined portion and / or the one-side inclined portion and the bent portion of the curved portion. The split part is connected to the hinge part so as to be openable and closable, and the flat part, the inclined part and the curved part on the other side are integrally formed by the bent part. be able to.

[0060] With this configuration, the hinge allows the inclined portion on one side with respect to the flat portion and the curved portion with respect to the inclined portion on one side to be openable and closable. In addition, since the opening and closing angles of the inclined portion and the curved portion can be adjusted by the hinge portion, the adhesion to the wrist and the like is further improved. Further, since the inclined portion and the curved portion can be folded by the hinge portion, the sphygmomanometer when not in use is downsized, and the storage property is improved. Furthermore, when the blood pressure meter is worn on the wrist or the like, the flat part, which is integrally connected with the bent part, and the inclined part and the curved part on the other side are hooked on the long diameter part of the wrist or the like, and then are worn so as to cover the palm side. In addition, the mounting operation is facilitated and the mounting displacement is reduced.

[0061] In the sphygmomanometer according to the present invention, the flat portion and the inclined portions on both sides of the elastic body plate, and / or Alternatively, the inclined portion on both sides and the bent portion of the curved portion are divided at least at one or more locations in a symmetrical position, and this divided portion is connected to the hinge so that it can be opened and closed by the hinge. .

With this configuration, the elastic plate has high flexibility with respect to the shape of the wrist or the like due to the hinge portion, but has a weak force for fixing the blood-bag, so that the blood-blocking bag expands left and right unevenly. Therefore, by providing the hinge portion at the symmetrical position, the blood bag is easily inflated to the left and right, so that the pressure on the artery is improved.

Claims

The scope of the claims

[1] A sphygmomanometer that applies a blood cuff in a cuff band to a measurement site such as a wrist, compresses an artery by inflating the blood cuff, and measures blood pressure by blocking blood.

A flexible elastic plate is interposed between the cuff band and the blood bag, and the elastic plate has a flat portion on the artery side in the circumferential direction of the measurement site, and at both ends of the flat portion, A sphygmomanometer characterized by comprising an inclined portion that extends downward and continues, and a curved portion that extends downward at each end of the inclined portion.

2. The sphygmomanometer according to claim 1, wherein the elastic body plate is an integrated body in which a flat portion, an inclined portion, and a curved portion are integrally connected by a bent portion.

3. The elastic plate according to claim 1, wherein at least the flat part and the inclined part of the elastic body plate have a thick part formed at least at one end in the longitudinal direction of the measurement site. Sphygmomanometer

4. The sphygmomanometer according to claim 1, wherein the elastic body plate has a flat portion divided at least at one or more locations, and the divided portions are connected to be openable and closable by hinge portions.

[5] The elastic body plate is divided at least at one or more of either the flat portion and the one-side inclined portion and / or the one-side inclined portion and the bent portion of the curved portion, and the divided portion is hinged. The flat part and the inclined part and the curved part on the other side are integrally connected by the bent part, and the flat part and the inclined part and the curved part on the other side are connected to each other. Sphygmomanometer.

[6] The flat portion and the inclined portions on both sides of the elastic body plate and / or the bent portions of the inclined portions and the curved portions on both sides are divided at least at one or more symmetrical positions, and this divided portion is used as a hinge. 2. The sphygmomanometer according to claim 1, wherein the sphygmomanometer is openably and closably connected by a part.