JP2000083912A - Hemodynmometer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve visibility and operability by providing a hemodynamometer with a cuff to be mounted at a vital section and a main body attachably and detachably mounted at this cuff, providing the cuff side with air system parts relating to the expansion and contraction of the cuff and electrically connecting these parts by wires or radio to the electric system parts arranged on the main body side. SOLUTION: This hemodynamometer comprises the cuff 10 which is wound and mounted around and at the vital section of the wrist, arm, etc., and the main body 20 which is attachably and detachably mounted at the cuff 10 and has a display part 21, a manipulation part (a power source switch, etc.), 22, etc. The cuff 10 and the main body 20 are electrically connected by a cord 30. The cuff 10 has a fitting 11 for turning back the cuff in such a manner that the length to be mounted at the vital section may be adjusted. The cuff contains an air bag. The main body mounting part of the cuff 10 is provided with a base 31 for attachably and detachably mount the main body 20. The base 31 is provided with pneumatic system parts (a motor operated pump, an exhaust valve, a tube, etc.), relating to the expansion and contraction of the cuff 10. The main body 20 is freely attachably and detachably housed into this base 31 by fitting of a recessed part and a projecting part, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sphygmomanometer for measuring a blood pressure by detecting a pulse wave from a body part such as a wrist or an arm.
In particular, the present invention relates to a sphygmomanometer in which a main body is detachable from a cuff to be worn on a wrist or an arm.

[0002]

2. Description of the Related Art There are the following sphygmomanometers in which a main body is integrated with a cuff to be wound and attached to a living body part such as a wrist or an arm. Sphygmomanometer whose main body is fixed to the cuff with screws and hooks. A sphygmomanometer in which the main body can be attached to and detached from the cuff, and the main body and the cuff are connected by an air tube.

[0003] Among these types of blood pressure monitors,
For example, as shown in FIG. 19A, a cuff 90 and a main body 93 are provided with hook-and-loop fasteners 91 and 94, respectively, and the cuff 90 and the main body 93 are connected by an air tube 97, and FIG. As shown in the figure, a hook 92 protrudes from the cuff 90, a hook fitting hole 95 is formed in the main body 93, and the cuff 90 and the main body 93 are connected by an air tube 97. In these sphygmomanometers, the main body 93 can be attached to and detached from the cuff 90 attached to the body part. In addition,
Another air tube 98 connected to a manual pump (not shown) extends from the main body 93.
Instead of using an electric pump.

[0004]

In the sphygmomanometer of the type described above, the main body cannot be separated from the cuff.
For example, for people with presbyopia, when the cuff is worn on the arm,
Not only is the display on the display provided on the main unit difficult to see,
It is difficult to operate the operation unit such as the power switch, and the usability is poor.

In the sphygmomanometer of the above-mentioned type (see FIG. 19), when the main body 93, which is the original purpose, is used separately from the cuff 90, even a presbyopic person has difficulty in viewing the display unit or performing difficult operations on the operation unit. Sex is eliminated. However, since the cuff 90 and the main body 93 are connected by the relatively thick and long air tube 97, when the main body 93 is used integrally with the cuff 90, the extra air tube 97 becomes an obstacle,
Conversely, when used separately, it is not easy to use, and the appearance is not good.

In particular, the hook-and-loop fasteners 91, 91 shown in FIG.
In the sphygmomanometer using 94, since the cuff 90 and the main body 93 are not firmly fixed, there is a danger that the main body 93 will fall off the cuff 90 during use. The present invention has been made in view of such a conventional problem, and the simplicity and portability of the integrated cuff and main body are not impaired. The purpose is to provide a good blood pressure monitor.

[0007]

According to a first aspect of the present invention, there is provided a sphygmomanometer according to the present invention, comprising: a cuff to be attached to a body part; and a main body detachably attached to the cuff. The cuff is characterized in that an air-based component relating to expansion and contraction of the cuff is provided on the cuff, an electric-system component is provided on the main body, and the main body and the cuff are electrically connected by wire or wirelessly.

In this sphygmomanometer, unlike the conventional sphygmomanometer of the conventional type, pneumatic components (electric pump, exhaust valve,
A tube or the like is provided on the cuff, and the main body is provided with only electrical components such as a display unit and an operation unit. Therefore, there is no need to connect the main body and cuff with an air tube,
The main body and the cuff are electrically connected by wire or wirelessly. In the case of a wired connection, a thin and easy-to-use cord can be used to connect the main body and the cuff compared to the air tube, so that when the main body is separated from the cuff and used, the usability is improved.
When the main body and the cuff are used integrally, for example, if a mechanism for winding the cord or a mechanism for detachably attaching the cord is provided, the cord does not need to be in the way. On the other hand, in the case of wireless, there is no need for any tangible article connecting the main unit and the cuff,
Usability is further improved. Therefore, in both the wired and wireless cases, the usability such as visibility and operability is improved.

A sphygmomanometer according to a second aspect of the present invention includes a cuff to be attached to a living body part and a main body detachably attached to the cuff. Air connection ports are provided on the main body and cuff, and both air connection ports are directly connected when the main body is attached to the cuff, and both air connection ports can be connected with an air tube when the main body is separated from the cuff It is characterized by having.

In this sphygmomanometer, when the main body and the cuff are used integrally, both air connection ports are directly connected, and when the main body is separated from the cuff and used, both air connection ports are connected with an air tube. Since the connection is made, the usability such as visibility and operability is good as described above.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments. A sphygmomanometer according to the embodiment is shown in FIGS. 1 (perspective view in an integrated state) and FIG. 2 (perspective view in a separated state). The sphygmomanometer includes a cuff 10 that is wound around and attached to a living body site such as a wrist or an arm, and a main body 20 that is detachably attached to the cuff 10 and has a display unit 21 and an operation unit (such as a power switch) 22. And the cuff 10 and the main body 20 are cord 3
0 is electrically connected. The cuff 10 is a metal fitting 1 for folding back so that the length to be wound around a living body part can be adjusted.
1 with a built-in air bag. A base 31 for detachably attaching the main body 20 is provided at a main body attaching portion of the cuff 10. Pneumatic components (electric pumps, exhaust valves, tubes, etc.) related to the expansion and contraction of the cuff 10 are provided on the base 31.
Is provided. On the other hand, the main body 20 is provided with electrical components such as the display unit 21 and the operation unit 22.

The attachment of the main body 20 to the base 31 is shown in FIG.
Although not particularly shown in the figure, the process is performed by, for example, fitting a concave portion and a convex portion. Cord 3 for connecting cuff 10 and body 20
In the case of 0, a winding mechanism may be provided on the base 31 or the main body 20 and adjusted to a required length, or may be detachable from the cuff 10 and the main body 20 by a connector or the like. When the cord 30 is made detachable, a connector is provided at a cord connecting portion between the base 31 and the main body 20, for example, so that the cuff 10 and the main body 20 are electrically connected when the main body 20 is attached to the base 31. deep.

In this sphygmomanometer, when the main body 20 is used integrally with the cuff 10 attached to a living body part (see FIG. 1), the cord 30 is wound up to an appropriate length as described above. Adjust or remove cord 30. Of course, since an air tube is not used to connect the cuff 10 and the main body 20, in this integrated state, the air tube and the cord 30 do not obstruct, and the usability is good. Of course, since the cuff 10 and the main body 20 are integrated, it is excellent in simplicity and portability.

On the other hand, when the main body 20 is used separately from the cuff 10 (see FIG. 2), the cord 30 is pulled out and adjusted to an appropriate length, or the base 30 and the main body 20 are connected by the cord 30. . In this separated state, for example, when a presbyopic person measures the blood pressure by himself or when another person measures the blood pressure of a bedridden person, the main body 20 can be placed in an appropriate position. The visibility of the unit 21 and the operability of the operation unit 22 are improved, and the usability is good. Moreover,
Since the cuff 10 and the main body 20 are connected by the cord 30 which is thinner and more flexible than the air tube, the main body 20 can be relatively freely moved to a desired position.

FIG. 3 shows a sphygmomanometer according to another embodiment. However, the same components as those of the sphygmomanometer of the above embodiment are denoted by the same reference numerals. In this sphygmomanometer, the cuff 10 and the main body 20 are electrically connected wirelessly (for example, wirelessly using infrared rays). The base 31 and the main body 20 of the cuff 10 are provided with transmission / reception units 35 and 36 for performing transmission / reception, respectively, and exchange operation signals, measurement signals, and the like with each other.

In the sphygmomanometer of FIG. 3, since there is no tangible article connecting the cuff 10 and the main body 20, the main body 20 is separated from the cuff 10 as well as when the cuff 10 and the main body 20 are used integrally. It is very convenient to use. Moreover, when the cuff 10 is left on the wrist or the arm, the main body 20 can be removed from the cuff 10,
Not only does the cuff 10 not become heavy and the arms are not easily tired, and because the cuff 10 looks like a decorative band, the appearance also improves.

A sphygmomanometer according to yet another embodiment is shown in FIGS. 4 (perspective view in an integrated state) and FIG. 5 (perspective view in a separated state).
This sphygmomanometer uses an air tube 40 when an air system component is provided on a main body 20 and the cuff 10 and the main body 20 are used separately. The cuff 10 has 4
Hooks (projections) 41 are protrudingly provided.
Four engaging holes (projection receiving portions, not shown) are formed on the back surface of the main body 20 in correspondence with the above, and the main body 20 can be attached to the cuff 10 by fitting the hooks 41 into the engaging holes. it can. Of course, the number of hooks 41 may be appropriately increased or decreased.
The position is not limited.

An air connection port (not shown) is provided on the main body mounting portion of the cuff 10 and on the back surface of the main body 20, respectively.
When the main body 20 is attached to the cuff 10, the two air connection ports are directly connected, and the air tubes 40 can be connected to both the air connection ports. Connectors 40a, 4 are provided at both ends of the air tube 40, respectively.
0b (see FIG. 7) is attached, and connectors 40a, 40
The b allows the air tube 40 to be airtightly and easily attached to and detached from the air connection port.

In this sphygmomanometer, the cuff 10 and the main body 20
When the air tube 4 is used integrally (see FIG. 4),
Remove 0. Of course, since both air connection ports are directly connected, there is no obstacle to the inflow and outflow of air between the cuff 10 and the main body 20. When the cuff 10 and the main body 20 are used separately (see FIG. 5), the cuff 10
And the connectors 40a and 40b of the air tube 40 are connected to both air connection ports.

FIGS. 6 (integrated perspective view) and FIG. 7 (separated perspective view) show a sphygmomanometer according to yet another embodiment.
In this sphygmomanometer, a base 51 having a shape as shown in FIG.
5 and a pair of hooks (projections) 48.
An air connection port 46 is provided on the back surface of the main body 20.
The main body 20 is supported by the base 51 by engaging the hook 48 with the main body 20. Both air connection ports 45, 46
The air tube 40 and the air connection ports 45 and 46 have connectors 40a and 40b at both ends, and the connectors 40a and 40b are inserted into the air connection ports 45 and 46, so that the air tube 40 and the air connection ports 45 and 46 are airtight and simple. Connected to.

In this sphygmomanometer, when the cuff 10 and the main body 20 are used integrally (see FIG. 6), the main body 20 is attached to the base 51 after removing the air tube 40. In this state, the two air connection ports 45 and 46 are directly connected. When the cuff 10 and the main body 20 are used separately (see FIG. 7), the air tube 40 is connected to both the air connection ports 45 and 46 after removing the main body 20 from the base 51.

FIG. 8 is a perspective view (in a state where the display unit cover is raised) of a main body of a sphygmomanometer according to still another embodiment, FIG. 9A is a plan view thereof, and FIG. FIG. 10 shows a side view of FIG. 9B. In the main body 20, the display unit cover 23 is attached to the main body 20 so as to be openable and closable, and the display unit 21 is provided inside the display unit cover 23. The display unit cover 23 is raised when used. A battery cover 24 is detachably attached to the back side of the main body 20.

A groove (engagement receiving portion) 25 is provided on one side of the main body 20 in the short direction, and a push button 26 is arranged on one side of the long direction so as to be displaceable in the short direction. The push button 26 is constantly urged in a direction protruding from the side surface of the main body 20 by, for example, a coil spring, and can be pressed against the urging force. A hole 27 is formed on the back surface of the main body 20, and a claw (projection) 28 is positioned in the hole 27. The claw 28 is integrated with the push button 26, and when the push button 26 is pressed, the claw 28 is slightly displaced in the pushing direction.

The air connection port 4 provided on the back of the main body 20
6 has an O-ring on its peripheral surface, the O-ring protruding somewhat from the peripheral surface. Further, in this embodiment, the air connection port 4
6 is a cuff 10 with the main body 20 attached to the cuff 10.
(See FIG. 11) Long direction (that is, short direction of main body 20)
At the substantially center of the main body 20. That is, in FIG. 9B, assuming that the dimension of the main body 20 in the short direction is W, the air connection port 46 is arranged at the position of W / 2.

FIG. 11 is a perspective view of a cuff of the sphygmomanometer. The cuff 10 has a base 61 to which the main body 20 is detachably attached to a main body attaching portion. Base 6
1 is a convex portion (engaging portion) 63 provided on a wall 62 on one end side thereof and capable of engaging and disengaging with the groove 25 of the main body 20, an air connection port 45 corresponding to the air connection port 46 of the main body 20, A claw receiving portion (projection receiving portion) 64 capable of engaging and disengaging with the claw 28 of the main body 20; In this embodiment, the air connection port 45 is
The cuff 10 is disposed substantially at the center in the short direction of 0. That is, assuming that the dimension of the cuff 10 in the short direction is L, the air connection port 45 is disposed at the position of L / 2. The hook-and-loop fastener 12 is attached to an appropriate position on the surface of the main body 20.

Next, a method of attaching the main body 20 to the cuff 10 will be described with reference to FIGS. First, as shown in FIG. 12 (partially broken side view (a), enlarged sectional view (b) of the circular portion in (a)), the convex portion 63 of the base 61 of the cuff 10 faces the groove 25 of the main body 20. Then, the protrusion 63 is hooked on the groove 25 (FIGS. 13A and 13B). Next, when the main body 20 is pressed against the cuff 10 as it is, the protrusion 6
3 fits into the groove 25 and the claws 64
Into the hole 27 and engage with the claw 28 [(a) of FIG.
(B)], the main body 20 is fixed to the cuff 10. Of course, in this state, the air connection port 45 of the cuff 10 fits into the air connection port 46 of the main body 20, and the connection ports 45, 46 are air-tightly connected by the O-ring of the connection port 46. When the main body 20 is removed from the cuff 10, if the push button 26 of the main body 20 is pressed, the claw 28 comes off from the claw receiver 64, so that the main body 20 can be easily removed.

Further, as described above, since the air connection port 46 of the main body 20 is located at the position of W / 2 of the dimension W, the cuff 10 is smaller than when the air connection port 46 is provided at a position near the end.
Even if the surface of the cuff 10 is curved when the cuff 10 is wound around the arm, the influence of the curvature does not significantly affect the connecting portion between the air connection ports 45 and 46, and air hardly leaks from the connecting portion. Furthermore, since the air connection port 45 of the cuff 10 is located at the position of L / 2 of the dimension L, compared with the case where the air connection port 45 is provided near the end,
Even if the cuff 10 is inflated by the air supply and the surface of the cuff 10 is curved, the influence of the curvature does not reach the connecting portion of the two air connection ports 45 and 46 so that air hardly leaks from the connecting portion. By these two effects, air leakage at the connecting portion can be more effectively prevented.

A mounting mode different from the above-mentioned blood pressure monitor will be described with reference to FIGS. FIG. 15 shows a back view of the main body 20 of the sphygmomanometer, and the same elements as those described above are denoted by the same reference numerals. In the main body 20, an arc-shaped hook engaging hole (projection receiving hole) 29 is formed on the back surface thereof, and the hook engaging hole 29 has an extended portion 29 having a large opening width at one end side.
a. FIG. 16 shows a plan view (a) and a side view (b) of the cuff 10 of the sphygmomanometer. Similarly, the same elements as those described above are denoted by the same reference numerals. In this cuff 10, an L-shaped hook (projection) 65 is provided on the base 61 instead of the claw receiver 64.

FIG. 17 [Partial perspective plan view (a) showing the state at the beginning of mounting, part (b) showing the state after mounting]
And FIG. 18 (a side view (a) of FIG. 17 (b) and an enlarged sectional view (b) of a circular portion of FIG. 17 (a)). First, in FIG. 17A, the hook 65 of the base 61 of the cuff 10 is connected to the extended portion 2 of the hook engaging hole 29 of the main body 20.
Put in 9a. At this point, the air connection port 4 of the base 61
5 fits into the air connection port 46 of the main body 20, and the connection port 45,
46 are connected. When the main body 20 is turned in the direction of the arrow, the hook 65 reaches the opposite side of the hook engaging hole 29, overlaps the edge of the hook engaging hole 29, and the convex portion 63 of the base 61 engages with the groove of the main body 20. 25 (see FIG. 8) [FIG. 17 (b) and FIG.
(B)]. Thereby, the main body 20 is fixed to the cuff 10. When removing the main body 20 from the cuff 10, the main body 20 is turned in the direction opposite to the arrow, and the hook 65 is inserted into the hook engaging hole 2.
Since it reaches the extended portion 29a of the main body 9, the main body 20 can be easily removed.

In the sphygmomanometer shown in FIGS. 8 to 18, in addition to using the main body 20 by attaching it to the cuff 10, FIG.
The air tube 40 as shown in FIG.
5, 46 may be connected.

[0031]

According to the sphygmomanometer according to the first aspect of the present invention, as described above, the cuff provided with the pneumatic component and the main body provided with the electric component are electrically connected by wire or wirelessly. Since the connection is made, in the case of a wired connection, a thinner and easier-to-use cord can be used to connect the main body and the cuff, and the usability is improved when the main body is used separately from the cuff. On the other hand, in the case of wireless communication, no tangible article for connecting the main body and the cuff is required, so that usability is further improved. Therefore, in both the wired and wireless cases, the usability such as visibility and operability is improved.

According to the sphygmomanometer according to the second aspect, when the main body and the cuff are used integrally, both air connection ports are directly connected, and when the main body is separated from the cuff, both air connection ports are used. Since the connection port is connected with the air tube, the usability such as visibility and operability is good as described above. Claim 1,
According to the sphygmomanometer described in 2, the cuff and the main body are of an integrated type, and the simplicity and portability are not impaired. In addition, when the cuff is kept attached to a living body part, the main body is removed from the cuff. The cuffs are not heavy, the arms are less tiring, and the cuff looks like a decorative band, so it looks better.

According to the third aspect of the present invention, since the air connection ports are connected at the same time when the main body is attached to the cuff,
Convenience is further improved. According to the configuration of claims 4, 5, and 6, the main body can be easily attached to and detached from the cuff with a simple and low-cost structure. According to the configuration of claim 7, the stability of the main body with respect to the cuff is increased, and the main body can be easily attached and detached.

According to the structure of the eighth aspect, even if the surface of the cuff is curved when the cuff is wound around the arm, the influence of the curvature does not significantly affect the connecting portions of the air connection ports of both the cuff and the main body. Air is hard to leak from the connecting part. According to the configuration of claim 9, even if the cuff is inflated by the air supply and the surface of the cuff is curved, the influence of the curvature does not significantly affect the connecting portion of the air connection ports of both the cuff and the main body, and the air is supplied from the connecting portion. But hard to leak. Further, by using the constitutions of claims 8 and 9 together, it is possible to more effectively prevent air leakage at the connecting portion.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an integrated state of a cuff and a main body in a sphygmomanometer according to one embodiment.

FIG. 2 is a perspective view showing the cuff and the main body in a separated state in the sphygmomanometer of FIG. 1;

FIG. 3 is a perspective view showing a separated state of a cuff and a main body in a sphygmomanometer according to another embodiment.

FIG. 4 is a perspective view showing an integrated state of a cuff and a main body in a sphygmomanometer according to still another embodiment.

5 is a perspective view showing a cuff and a main body in a separated state in the sphygmomanometer of FIG. 4;

FIG. 6 is a perspective view showing an integrated state of a cuff and a main body in a sphygmomanometer according to still another embodiment.

FIG. 7 is a perspective view showing a separated state of a cuff and a main body in the sphygmomanometer of FIG. 6;

FIG. 8 is a perspective view showing a main body of a sphygmomanometer according to still another embodiment.

9 is a plan view (a) and a back view (b) of the main body in FIG.
It is.

FIG. 10 is a side view of FIG. 9 (b).

FIG. 11 is a perspective view of a cuff to which the main body of FIG. 8 is attached.

12A is a partially cutaway side view for explaining a method of attaching the main body of FIG. 8 to the cuff of FIG. 11, and FIG. 12B is an enlarged sectional view of a circular portion of FIG.

13 is a partially cutaway side view for explaining a method following FIG. 12, and FIG. 13B is an enlarged sectional view of a circular portion of FIG.

14A is a partially cutaway side view for explaining a method following FIG. 13, and FIG. 14B is an enlarged sectional view of a circular portion of FIG.

FIG. 15 is a rear view of the main body for explaining another attachment form between the cuff and the main body.

16 is a plan view (a) and a side view (b) of a cuff to which the main body of FIG. 15 is attached.

17 is a partial perspective plan view (a) showing a state at the beginning of attachment and a partial perspective plan view (b) showing a state after attachment of the method of attaching the main body of FIG. 15 to the cuff of FIG. is there.

18 (a) and (a) are side views of FIG. 17 (b).
It is an expanded sectional view (b) of the circular part.

FIG. 19 is a view showing a sphygmomanometer according to a conventional example, in which a main body is detachably attached to a cuff.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cuff 20 Main body 21 Display part 22 Operation part 25 Groove (engagement receiving part) 28 Claw (projection part) 29 Hook engagement hole (projection receiving hole) 30 Code 31, 51, 61 Base 35, 36 Transmitter / receiver part 40 Air tube 41, 48, 65 Hook (projection) 45, 46 Air connection port 63 Convex (engagement) 64 Claw receiver (projection receiver)

Continuing from the front page (72) Inventor Kentaro Mori 24 Yamanouchi Yamanoshitacho, Kyoto, Ukyo-ku, Kyoto (72) Inventor Mitsuru Kitamura Mitsuru Kitamura 24 Yamanouchi Yamanoshitacho, Ukyo-ku, Kyoto, Japan Omron Life Science Research Co., Ltd.

Claims (9)

[Claims] A sphygmomanometer comprising a cuff to be attached to a living body part and a main body detachably attached to the cuff, wherein an air-based component relating to inflation and contraction of the cuff is provided on the cuff, and an electric-system component is provided. A sphygmomanometer provided on a main body, wherein the main body and the cuff are electrically connected by wire or wirelessly. 2. A sphygmomanometer comprising a cuff to be attached to a living body part and a main body detachably attached to the cuff, wherein a pneumatic component relating to expansion and contraction of the cuff is provided in the main body, and the main body and the cuff are provided. A blood pressure, wherein when the main body is attached to the cuff, both air connection ports are directly connected, and when the main body is separated from the cuff, both air connection ports can be connected by an air tube. Total. 3. The air connection port of the cuff is provided on a main body mounting portion of the cuff, and the air connection port of the main body is provided on a back surface of the main body corresponding to the air connection port of the cuff. Item 2. A sphygmomanometer according to item 2. 4. The sphygmomanometer according to claim 2, wherein a projection is provided on the main body mounting portion of the cuff, and a projection receiving portion is provided on the rear surface of the main body corresponding to the projection. 5. A cuff main body mounting portion and a main body rear surface, wherein an engaging portion is provided on one of a main body mounting portion of the cuff and a rear surface of the main body, and an engaging receiving portion is provided on the other side of the cuff. A projection is provided on one of the projections, and a projection receiving portion is provided on the other. The projection is engaged with the engagement receiving portion when the main body is attached to the cuff, and then the projection is moved to the projection receiving portion. The sphygmomanometer according to claim 3, wherein the main body is fixed to the cuff by being fitted to the cuff. 6. A cuff main body mounting portion and a back surface of the main body are provided with a protruding portion on one side and a protruding receiving hole detachable from the protruding portion on the other side. The sphygmomanometer according to claim 3, wherein the main body is fixed to the cuff by being fitted into the hole and rotating the main body. 7. A base for removably supporting a main body at a main body mounting portion of the cuff, wherein both air connection ports are connected when the main body is mounted on the base. The blood pressure monitor according to claim 3, 4, 5, or 6. 8. The air connection port of the main body is disposed substantially at the center of the main body in the longitudinal direction of the cuff with the main body attached to the cuff. The sphygmomanometer according to claim 4, claim 5, claim 6, or claim 7. 9. The air connection port of the cuff is disposed substantially at the center of the cuff in the short direction of the cuff. The blood pressure monitor according to claim 7, claim 7, or claim 8.