JPH10314123A - Arm band winding instrument for measuring blood pressure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blood pressure measuring arm band winding device by which winding strength is made to be uniform in the width direction of an arm band even for an upper arm being different in thickness in a longitudinal direction. SOLUTION: When the upper arm inserted into the arm band 12 which is bent to be a cylindrical shape is different in thickness in the longitudinal direction, for example, when the upper arm becomes thinner from a base side to an end side, tension difference is generated in the both edge parts of the arm band 12. Therefore, a machine frame 26 where an arm band contraction diameter driving device 48 is provided is rotated around a pin to a tension difference cancelling side so that the winding strength of the arm band 12 is made to be uniform in the arm band width direction even as against the upper arm being different in thickness in the longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blood pressure measurement for winding a flexible arm band around a part of a living body by reducing the diameter of a cylindrically bent flexible arm band at the time of blood pressure measurement. The present invention relates to an armband winding device for a vehicle.

[0002]

2. Description of the Related Art A blood pressure measuring arm band wrapping device for winding a flexible arm band around a part of a living body by reducing the diameter of a flexible arm band bent in a cylindrical shape is known. I have. For example, the apparatus described in Japanese Patent Application Laid-Open No. HEI 6-237906 is that. According to such a blood pressure measurement arm band winding device, the winding state is uniform without the need for training or skill to obtain a technique for winding the arm band around the living body arm. There is an advantage that the resulting variation in blood pressure measurement value is prevented.

[0003]

In the above-mentioned conventional arm band wrapping apparatus for blood pressure measurement, a pneumatic cylinder, a rack and pinion, or an electric motor is used to tighten a cylindrically bent arm band to the upper arm of a living body. A mechanism is used in which the distal end of the arm band is fixed to a member that is guided and moved linearly by a motor, and the cylindrical member is reduced in diameter by being pulled by the member. However, the subject's arm often has a different thickness in the longitudinal direction. For this reason, while the winding of the arm band is strengthened on the thick side of the upper arm, the winding of the arm band is loosened on the thin side of the upper arm, and the winding strength is reduced in the longitudinal direction of the upper arm, that is, in the width direction of the arm band. In some cases, the problem of non-uniformity occurs.

The present invention has been made in view of the above circumstances, and an object thereof is to uniformly wrap the upper arm having different thicknesses in the longitudinal direction in the width direction of the arm band. It is an object of the present invention to provide a blood pressure measurement arm band wrapping device.

[0005]

The gist of the present invention to achieve the above object is to measure a blood pressure.
A blood pressure measurement arm band wrapping device for winding a flexible arm band around a part of a living body by reducing the diameter of a flexible arm band bent into a cylindrical shape having a substantially horizontal axis. , (A)
A cuff base end fixing device for supporting a base end located below the cylinder in the cylindrically bent flexible cuff in a substantially tangential direction of the cylindrical shape of the flexible cuff. (B) a machine frame rotatably provided around a vertical axis located within the width of the flexible arm band, and (c) a machine frame provided on the machine frame and rotating in the cylindrical shape. An armband driving device that reduces the diameter of the flexible armband by moving the distal end portion of the bent flexible armband toward the outer peripheral side of the cylinder in a substantially tangential direction. is there.

[0006]

According to this structure, the distal end portion of the flexible arm band which has been turned into a cylindrical shape by the arm band driving device is moved substantially tangentially on the outer peripheral side of the cylinder. When the diameter of the flexible arm band is reduced by the above, when the thickness of the upper arm passed through the flexible arm band bent in a cylindrical shape is different in the longitudinal direction, both side edges of the arm band A tension difference occurs in the arm band driving device, and the machine frame provided with the arm band driving device is rotated around a vertical axis located within the width dimension of the arm band toward the side where the tension difference is eliminated. The winding strength of the arm band is made uniform in the width direction of the arm band even for the upper arm having a different thickness in the direction.

[0007]

In another preferred embodiment of the present invention, the base unit for fixing the baseband of the wristband preferably fixes the base end of the flexible wristband so as to be rotatable about a vertical axis. . With this configuration, the base end of the flexible arm band is also rotatable around the vertical axis, so that the arm band is wound around the upper arm having a different thickness in the longitudinal direction. Is made more uniform in the width direction of the arm band.

[0008] Preferably, the arm band driving device comprises:
(d) the outer circumferential side of the cylindrically bent flexible arm band, located near the base end of the arm band, and the center of the cylindrically bent flexible arm band. A winding roller rotatably supported by the machine frame so as to be rotatable about a rotation axis substantially parallel to the axis, and (e) disposed along the arm band while being in contact with the outer peripheral surface of the flexible arm band. A fastening tape having one end fixed to the base end of the arm band and the other end wound around the winding roller, and (f) a state in which it contacts the outer peripheral surface of the flexible arm band. A release tape having one end fixed to the tip of the arm band and the other end wound around the winding roller in the opposite direction to the tightening tape, (g) When the diameter of the flexible arm band is reduced, the winding roller is driven to rotate in a direction for applying tension to the fastening tape, and when the diameter of the arm band is reduced, the direction is opposite to that direction. A rotation drive device for rotating the take-up roller in a direction that applies tension to the release tape. With this configuration, when the take-up roller is rotationally driven by the rotary driving device in a direction in which tension is applied to the tightening tape, the cylindrical flexible member around which the tightening tape is wound around the outer peripheral surface. The arm band is reduced in diameter and wound around a part of the living body. Conversely, when the take-up roller is rotationally driven by the rotary driving device in a direction for applying tension to the release tape, the distal end of the arm band to which one end of the release tape is fixed is returned in the circumferential direction, and the cylindrical member is rotated. The flexible arm band is reduced in diameter and the living body is released. According to the arm band wrapping device of the present invention configured as described above, the conventional blood pressure of the type in which the flexible arm band is reduced in diameter by pulling the tip of the flexible arm band along a straight line. As compared with the arm band wrapping device for measurement, the arm band wrapping device becomes smaller, and the automatic blood pressure measurement device including the arm band wrapping device can be made smaller. Further, according to the arm band winding device configured as described above, the fastening tape and the release tape disposed in contact with the outer peripheral surface of the flexible arm band that is bent in a cylindrical shape. Is pulled, thereby reducing and expanding the diameter of the flexible arm band that has been turned into a cylindrical shape, so that the flexible arm band is held in a cylindrical shape even if the rigidity of the flexible arm band is not so high. Therefore, there is an advantage that a soft material that hits the living body can be selected.

[0009] Preferably, the winding roller has an outer diameter smaller than a minimum diameter of the flexible arm band bent in a cylindrical shape. In this case, there is an advantage that the armband wrapping device for blood pressure measurement can be further reduced in size.

Preferably, the fastening tape has a width smaller than the width of the flexible arm band, and is positioned along both ends in the width direction of the flexible arm band. 2
A tape having a width smaller than a width of the flexible arm band and positioned along a center line in a width direction of the flexible arm band. It is. According to this configuration, since the two fastening tapes are respectively positioned along both ends in the width direction of the flexible arm band, the diameter of the arm band is reduced and the inside of the arm band is reduced. There is an advantage that the tightening shape when the inflatable bag is inflated is stabilized.

Preferably, a guide device is provided for guiding the distal end portion of the flexible arm band in the circumferential direction when the diameter of the flexible arm band is expanded or reduced. With this configuration, when the diameter of the flexible cuff is expanded or reduced, the distal end of the flexible cuff is guided in the circumferential direction of the cuff that is bent in a cylindrical shape. The advantage is that the shape is held in a relatively precise cylinder.

[0012] Preferably, the armband driving device comprises:
(h) supported by the machine frame so as to be rotatable about a rotation axis substantially parallel to the central axis of the flexible arm band that has been turned into a cylindrical shape, and having a change in the vicinity of the base end of the flexible arm band; A rotating drum having a distal end portion of the flexible arm band fixed to the outer peripheral surface so as to form a bending point; and (i) when the diameter of the flexible arm band is reduced, the flexible arm band is bent. A rotation driving device for driving the rotation drum in a direction opposite to the direction. With this configuration, when the rotary drum is driven to rotate by the rotary drive device, the base end is fixedly supported by the arm band base end fixing device and the front end is fixed to the outer peripheral surface of the rotary drum. Thus, the diameter of the flexible arm band wound in a cylindrical shape is reduced. For this reason, as compared with a conventional blood pressure measurement arm band wrapping device in which the flexible arm band is reduced in diameter by pulling the distal end of the flexible arm band along a straight line, the arm band winding is performed. The size of the attaching device can be reduced, and the size of the automatic blood pressure measuring device including the arm band winding device can be reduced. Further, according to the arm band winding device configured as described above, the flexible arm band is formed such that an inflection point is formed near the base end portion of the flexible arm band that is turned into a cylindrical shape. Since the front end of the band is fixed to the outer peripheral surface of the rotating drum, there is an advantage that the cylindrical shape of the flexible arm band becomes an accurate shape close to a perfect cylinder and the cylindrical shape is formed stably. .

Preferably, the rotating drum has a diameter smaller than a maximum diameter of the flexible arm band which is bent in a cylindrical shape. In this case, there is an advantage that the armband wrapping device for blood pressure measurement can be further reduced in size.

Preferably, the arm band base end fixing device maintains the base end of the flexible arm band fixed above the rotation axis of the rotary drum. With this configuration, the width of the outer shape of the arm band wrapping device for blood pressure measurement can be reduced, and the width of the automatic blood pressure measurement device incorporating the arm band wrapping device can be significantly reduced.

Preferably, when the rotary drive device drives the rotary drum to rotate in a direction to enlarge the diameter of the flexible arm band, the flexible arm wound around the outer peripheral surface of the rotary drum. An arm band separation preventing device is provided for preventing the band from being separated from the outer peripheral surface of the rotating drum by a predetermined amount or more. According to this configuration, when the rotating drum is rotationally driven in a direction in which the diameter of the flexible arm band is expanded, when the flexible arm band having the distal end portion wound around the rotating drum is sent out, the flexibility of the flexible arm band is increased. There is an advantage that buckling of the arm band is suitably prevented.

Preferably, the arm band separation preventing device is arranged around a plurality of rotation axes located parallel to each other at predetermined circumferential intervals on a cylindrical surface centered on the rotation axis of the rotary drum. It has a plurality of guide rollers rotatably provided. According to this configuration, when the flexible arm band wound around the rotary drum is sent out by rotating the rotary drum in a direction in which the diameter of the flexible arm band is increased, the rotation axis of the rotary drum is centered. By a plurality of guide rollers provided rotatably around a plurality of rotation axes positioned parallel to each other at a predetermined circumferential interval on a cylindrical surface to be taken, the flexible arm band from the outer peripheral surface of the rotating drum Since the predetermined separation is prevented, buckling of the flexible arm band is advantageously prevented.

[0017]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIGS. 1 and 2 are perspective views showing an arm band wrapping device 10 for measuring blood pressure accommodated in a box (outer case) of an automatic blood pressure measuring device (not shown). FIG. And FIG. 2 is a perspective view of the front and right sides. The arm band 12 of the arm band winding device 10 is bent in a cylindrical shape, and the box body has a relatively large size for allowing the arm of a living body to be inserted into the arm band 12. The opening is formed so as to be substantially concentric with the axis of the arm band 12 which is turned into a cylindrical shape. Normally, the arm band winding is performed so that the axis A of the cylinder formed by the arm band 12 is inclined at a predetermined angle, for example, about 10 to 15 degrees with respect to the horizontal plane, so that the posture at the time of measuring the blood pressure does not give a feeling of strangeness. The attachment device 10 is fixed to a bottom wall inside the box.

The arm band 12 is for compressing an artery in the upper arm for measuring blood pressure. As shown in FIG. 3, a longitudinal expansion bag 16 made of a bag-like resin bag or a rubber bag is used. And a longitudinal belt-like flexible belt 18 made of a relatively high-rigidity resin such as a polyester resin sheet, a knitted band of which is coated with urethane or vinyl chloride, or a relatively high-rigidity cloth. A longitudinal outer bag 20 made of cloth or a soft resin sheet accommodating the inflatable bag 16 and the flexible belt 18 in a state where the inflatable bag 16 is located on the inner peripheral side. This allows
A relatively rigid flexible belt 18 maintains a spatially cylindrical shape, and when the flexible belt 18 is wound around the upper arm, the inflation of the inflatable bladder 16 compresses the artery in the upper arm. The arm band 12 can be handled as if it were a single flexible band.

In FIGS. 1 and 2, the machine frame 24 is fixed to a base 25, and the machine frame 26 is perpendicular to the base 25 in the width direction of the arm band 12 within the width of the arm band 12. It is attached by a pin 28 so as to be rotatable around. The machine frame 24 functions as a cuff base end fixing device for fixing the base end located on the lower side of the cylindrical bent shape of the cuff 12 to support the base end at a fixed position. In addition, when the long plate material having a width sufficiently smaller than the minimum diameter of the bent arm band 12 is bent into an inverted U shape, the flexibility in the base end portion of the arm band 12 is improved. The belt 18 includes an upper wall portion 30 fixed by rivets or screws (not shown), and a pair of vertical walls 32 and 34 that fall from both ends of the upper wall portion 30.

The machine frame 26 is provided with the turned arm band 12.
The bottom plate 36 is formed by bending a long plate material having a width slightly larger than the maximum diameter dimension of the bottom plate 36 into a U-shape.
A pair of vertical walls 38 and 40 rising from both ends of the bottom wall 36, the base end of the arm band 12 positioned inside the machine frame 24 and supported by the machine frame 24 has a widthwise direction. The bottom wall 36 is fixed to the inside of the box body in a relative positional relationship with the machine frame 24 located substantially at the center. The interval between the vertical walls 38 and 40 is set to a value slightly larger than the width of the arm band 12.

At the tips of the vertical walls 38 and 40 of the machine frame 26, that is, at the upper end thereof, a part of the outer circumferential circle at the maximum diameter of the arm band 12 which is turned straight and parallel to the bottom wall 36 is substantially formed. Notches 42 each having a similar arc are formed.
A first guide plate 44 formed of a curved plate substantially concentric with the cylindrical shape of the turned arm band 12 is provided between the upper edges of the vertical walls 38 and 40 and on the arc-shaped side of the notch 42. It is fixed by fixing means such as screwing or welding. Further, similarly to the first guide plate 44, the first guide plate 44 is curved so as to be substantially concentric with the cylindrical shape of the bent arm band 12 and has the first guide plate. A second guide plate 46 is fixed to the outer peripheral side of the plate 44 by a fixed distance of about 15 to 20 mm between the vertical walls 38 and 40. Since the tip of the turned arm band 12 is located between the first guide plate 44 and the second guide plate 46, when the diameter of the arm band 12 is increased or reduced, the arm band 12 is closed. Is guided in a substantially circumferential direction of the turning cylinder. In the present embodiment, the first guide plate 44 and the second guide plate 46 function as a guide device for guiding the distal end of the arm band 12 in a substantially circumferential direction.

The arm frame 12 is attached to the machine frame 26 by moving the distal end portion of the flexible arm band 12 which has been turned into a cylindrical shape in a substantially tangential direction on the outer peripheral side of the cylinder. An armband driving device 48 for reducing the diameter is provided.
That is, the arm band driving device 48 includes a winding roller 50, an electric motor with a speed reducer 52, a fastening tape 60, a release tape 62, and the like, which will be described below. The flexible arm band 12 which is located on the outer peripheral side of the cylindrically bent flexible arm band 12 and near the base end of the flexible arm band 12 and is cylindrically bent. The take-up roller 50 having a rotation axis substantially parallel to the center axis of the machine frame 26 is rotatable in a state of being bridged between the vertical walls 38 and 40 of the machine frame 26.
It is supported by. That is, the take-up roller 50 is rotatable at the upper end of the vertical walls 38 and 40 of the machine frame 26 and at the corner opposite to the side where the first guide plate 44 and the second guide plate 46 are provided. It is supported by. Winding roller 50
Has an outer diameter sufficiently smaller than the minimum diameter of the flexible arm band 12 bent in a cylindrical shape.

The electric motor with speed reducer 52 is fixed to the vertical wall 40 of the machine frame 26, and the electric motor with speed reducer 52
The gear 54 fixed to the output shaft is meshed with a gear 58 fixed to the shaft end of the winding roller 50 via an intermediate gear 56 rotatably attached to the vertical wall 40. Thus, the winding roller 50 is driven to rotate by the electric motor 52 with a speed reducer. In the present embodiment, the electric motor with speed reducer 52, the gear 54, the intermediate gear 56, and the gear 58 constitute a rotary driving device. At the rear end of the electric motor with speed reducer 52, an electromagnetic brake 59 for preventing the rotation of the rotor in the electric motor with speed reducer 52 is provided. This electromagnetic brake
The key 59 functions as an arm band loosening prevention device because the electric motor 52 with a speed reducer tightens the arm band 12 to stop the rotation of the arm band 12 at the same time as the rotation is stopped. I have.

As shown in FIG. 4, the outer periphery of the flexible arm band 12 is disposed along the arm band 12 in contact with the outer periphery surface of the arm band 12. A fastening tape 60 having one end fixed to the base end thereof, that is, the end fixed to the upper wall 30 of the machine frame 24 and the other end wound around the winding roller 50; It is arranged along the arm band 12 in contact with the outer peripheral surface of the band 12, one end is fixed to the tip of the arm band 12, and the other end is wound in the opposite direction to the fastening tape 60. A release tape 62 wound around the take-up roller 50 is provided. That is,
The fastening tape 60 and the releasing tape 62 are wound around the outer peripheral surface of the cylindrical arm band 12 which is turned.

The above-mentioned fastening tape 60 is made of the above-mentioned arm band 12.
The release tape 62 includes two tapes each having a width dimension sufficiently smaller than the width of the arm band 12, for example, 1/4 or less, and positioned along both ends in the width direction of the arm band 12. Is similar to the fastening tape 60,
Is a single tape having a width dimension sufficiently smaller than the width of the arm band 12 and positioned along the center line in the width direction of the arm band 12. Preferably, the fastening tape 60 and the release tape 62 are made of a non-stretchable resin sheet, carbon fiber or resin fiber.

In the arm band winding device 10 configured as described above, the winding roller 50 is reduced in diameter by the electric motor 52 with the speed reducer to the arm band 12, that is, in the counterclockwise direction indicated by the arrow in FIG. When driven to rotate, tension is applied to the fastening tape 60, so that the diameter of the arm band 12 that has been turned into a cylindrical shape is reduced. Conversely, when the take-up roller 50 is rotated by the electric motor 52 with the speed reducer in the direction in which the arm band 12 is enlarged, that is, in the clockwise direction opposite to the arrow in FIG. As a result, the arm band 12 that has been turned into a cylindrical shape is expanded in diameter.

FIG. 5 is a block diagram illustrating the configuration of an automatic blood pressure measurement device including the arm band winding device 10. In the figure, the inflatable bladder 16 in the cuff 12, that is, the cuff, is connected to the pressure sensor 142, the exhaust control valve 144, and the air pump 146 via a pipe 148, and the inflatable bladder 16 is provided on the inner peripheral surface. The base end of the arm band 12 which is turned into a cylindrical shape is fixed to the machine frame 24 and the front end is moved in the diameter reducing and expanding directions by a winding roller 50 driven by a motor 52 with a speed reducer. Has become. The output signal of the pressure sensor 142 is discriminated by a band-pass filter 154, and a pulse wave signal SM, which is a pressure oscillation in the inflatable bladder 16 generated in synchronization with the pulse, is converted into an A / D signal by the arithmetic and control circuit 156.
Provided to converter 158. The output signal of the pressure sensor 142 is discriminated by the low-pass filter 160, and a cuff pressure signal SK indicating the static pressure in the inflatable bladder 16 is supplied to the A / D converter 158 of the arithmetic and control circuit 156.

The arithmetic control circuit 156 includes a CPU 16
2, a microcomputer including a ROM 164, a RAM 166, an input interface circuit 168, an output interface circuit 170, and the like. The CPU 162
Using the temporary storage function of the RAM 166,
The input signal is processed in accordance with the procedure stored in 64 and a drive signal, a display signal, and the like are output.

That is, when measuring the blood pressure, the CPU 1
62 drives the take-up roller 50 in the direction of the arrow in FIG. 2 by driving the motor 52 with a speed reducer in accordance with a predetermined procedure to reduce the diameter D of the cylinder formed by the arm band 12. The inflatable bladder 16 disposed inside the arm band 12 is applied to the upper arm of the living body with a predetermined tension, for example, 2 to 3.
The distal end portion of the arm band 12 is pulled in the substantially tangential direction of the cylinder near the base end portion thereof with such a tension that a finger can be inserted between the upper arm and the arm band 12, thereby reducing the diameter of the arm band 12. And wrap it around your upper arm.

Next, the CPU 162 controls the air pump 14
6, the pressure of the inflatable bladder 16 is rapidly increased, and the inflatable bladder 16 presses the artery in the upper arm to a pressure at which hemostasis is stopped. Subsequently, the CPU 162 sets the exhaust control valve 144
To increase the compression pressure of the inflation bag 16 to, for example, 3 mmHg / sec.
The blood pressure is gradually reduced at a speed of about the same, and the blood pressure value is determined by an oscillometric method based on the pulse wave signal SM and the cuff pressure signal SK obtained in the slow speed reduction process, and the blood pressure value is displayed on the display 172.

When the blood pressure value is determined as described above, the CPU 162 releases the pressure in the inflation bag 16 to the atmospheric pressure by the exhaust control valve 144 in order to release the upper arm of the subject. At the same time, the motor with speed reducer 52 is reversed in the direction opposite to the direction at the time of winding. Thereby, the armband 1
The diameter D of the cylinder formed by the arm band 12 is increased by sending 2 upward from the inside of the machine frame 26. 1 and 2 illustrate this situation.

In the arm band winding device 10 of the present embodiment configured as described above, the arm band 1 which is turned into a cylindrical shape is used.
In the case where the upper arm inserted in 2 has substantially the same thickness in the longitudinal direction, a plan view (a) and a front view (b) of FIG.
The arm band 12 is reduced in diameter as shown in FIG. However, when the upper arm inserted into the arm band 12 has a different thickness in the longitudinal direction, for example, when the upper arm becomes thinner from the trunk side to the peripheral side, tension is applied to both side edges of the arm band 12. Since the difference occurs, the machine frame 26 provided with the armband driving device 48 is rotated around the pin 28 to the side where the difference in the tension is eliminated, as shown by the arrows in FIGS. 7 and 8. Also, the winding strength of the arm band 12 is made uniform in the width direction of the arm band even for the upper arm having a different thickness in the longitudinal direction. FIGS. 9A and 9B show the arm band 12 at this time.
Shows the reduced diameter shape.

FIG. 10 shows a reduced diameter state in which the upper arm inserted into the arm band 12 becomes thicker toward the distal side in the longitudinal direction. FIG. 11 shows a reduced diameter state where the arm band 12 is wound around a relatively thin arm, and FIG. 12 shows a case where the arm band 12 is a relatively thin arm and becomes thinner toward the distal side.

Further, according to the present embodiment, the fastening tape 60 is rotated by a rotary driving device such as the electric motor 52 with a speed reducer.
When the take-up roller 50 is driven to rotate in a direction in which tension is applied to the body, the cylindrical flexible arm band 12 around which the fastening tape 60 is wound around the outer peripheral surface is reduced in diameter, and the living body 1 Wrapped around the part. Conversely, the winding roller 50 is moved in the direction in which the release drive 62 is tensioned by the rotary drive device.
Is rotated, the distal end of the arm band 12 to which one end of the release tape 62 is fixed is returned in the circumferential direction, the cylindrical flexible arm band 12 is expanded, and the living body is released. Is done.
Therefore, as compared with a conventional blood pressure measurement arm band wrapping device in which the flexible arm band is reduced in diameter by pulling the distal end portion of the flexible arm band along a straight line, the arm band winding is performed. As the device 10 becomes smaller, the automatic blood pressure measurement device including the armband winding device 10 can be made smaller.

Further, according to the present embodiment, the fastening tape 60 and the releasing tape 62 wound in a state of contacting the outer peripheral surface of the flexible arm band 12 which is bent in a cylindrical shape are respectively pulled. By doing so, since the diameter of the flexible arm band 12 bent in a cylindrical shape is reduced and expanded, the rigid shape of the flexible arm band 12 is maintained in a cylindrical shape even if the rigidity is not so high. There is an advantage that a soft material that can hit the living body can be selected.

According to the present embodiment, the winding roller 50
Is provided with an outer diameter that is sufficiently smaller than the minimum diameter of the flexible arm band 12 that is bent in a cylindrical shape. There are advantages.

According to the present embodiment, the fastening tape 6
Reference numeral 0 denotes two tapes each having a width smaller than the width of the flexible arm band 12 and positioned along both ends in the width direction of the arm band 12, and the release tape 62 includes One tape having a width smaller than the width of the arm band 12 and positioned along the center line in the width direction of the arm band 12. Since these two fastening tapes 60 are located along both ends in the width direction of the flexible arm band 12, respectively,
There is an advantage that the tightening shape when the inflatable bag in the arm band 12 is inflated when the diameter of the arm band 12 is reduced is stabilized.

According to the present embodiment, the flexible arm band 12
When the diameter of the flexible arm band 12 is increased or reduced, the distal end of the flexible arm band 12 is guided between the pair of the first guide plate 44 and the second guide plate 46 constituting the guide device, so that the flexible arm band 12 is turned into a cylindrical shape. Since the arm band 12 is guided in the circumferential direction, the bent shape of the flexible arm band 12 is advantageously held in a relatively accurate cylinder.

In addition, according to the present embodiment, the arm band 12 has a long flexible belt 18, a long inflatable bag 16, and the inflatable belt 18 when the flexible belt 18 is wound. Bag 16
Is provided with the flexible belt 18 and the elongated outer bag 20 for accommodating the inflatable bag 16 so as to be located on the inner peripheral side. Since the inflatable bladder 16 is accommodated by the elongated outer bag 20, there is an advantage that it can be handled as if it were a single flexible band.

Next, another embodiment of the present invention will be described. In the following description, the same parts as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the arm band wrapping device 186 shown in FIG. 13, the upper wall portion 30 of the machine frame 24 functioning as the arm band base end fixing device.
In the figure, the base end of the flexible arm band 12 is fixed by a pin 188 at the center in the width direction of the arm band 12 so as to be rotatable around a vertical axis. According to the present embodiment,
Since the base end portion of the flexible arm band 12 is rotatable around the pin 188, the diameter of the arm band 12 is reduced with respect to the upper arm having a different thickness in the longitudinal direction, for example, as shown in FIG. )
, (B), there is an advantage that the winding strength of the arm band 12 is more uniform in the width direction of the arm band.

FIGS. 15 and 16 are a perspective view and a rear view, respectively, showing the front and left sides of an arm band winding device 200 according to another embodiment of the present invention. In the figure, a cylindrical rotating drum 2
42 is provided with a rotation shaft 244 penetrating the center thereof. The rotation around the rotation axis substantially below the axis A of the cylinder at the maximum diameter of the arm band 12 and substantially parallel to the axis A is provided. Possibly supported by the vertical walls 38 and 40 via a pair of bearings not shown. The distal end of the arm band 12 is fixed to the outer peripheral surface of the rotating drum 242 by a small screw 246, and an inflection point is formed near the base end of the flexible arm band 12, that is, The winding direction, that is, the winding direction on the base end side of the arm band 12 constituting the cylinder and the arm band 12
The arm band 12 is formed in an S-shape by reversing the winding direction, that is, the winding direction on the tip end side.

A motor with a speed reducer (not shown) is fixed to the vertical wall 40 in a state of being located outside the machine frame 26. The output of the motor with a reduction gear is output from a pulley 260, a belt 262, and a pulley 264 fixed to the output shaft 248.
Is transmitted to the rotary drum 242 via the rotator, and the rotary drum 242 is driven to rotate. Machine frame 2
6, six guide rollers 28 are provided as shown in FIG.
0, 281, 282, 283, 284, 285 are rotatable around a plurality of rotation axes located parallel to each other at predetermined circumferential intervals on a cylindrical surface centered on the rotation axis of the rotary drum 242. The frame 24 is provided sequentially from the vicinity of the upper wall portion 30. In this embodiment, the guide rollers 280, 281, 282, 283, 284, 285 constitute an arm band separation prevention device for preventing the arm band from being separated from the rotating drum 242. Also, machine frame 24
A guide roller 286 is provided on the machine frame 26 at a position near the upper wall portion 30 and opposite to the guide roller 280, that is, a position near the upper outside of the guide roller 285 so as to be rotatable around the rotation axis. Have been. At the upper position of the machine frame 26, the distal end side of the cylindrical arm band 12 passes between the guide rollers 285 and 286 and the wall 30 of the machine frame 24 and is fixed to the outer peripheral surface of the rotating drum 242. It is. In the present embodiment, the armband driving device 48
Are constituted by the rotary drum 242 and a motor with a speed reducer.

According to this embodiment, the following effects can be obtained in addition to the effects of the above-described embodiment. That is, the rotary driving device (motor with a reduction gear, pulley 260, belt 262, pulley 264) rotates the rotating drum 2 in the direction of expanding the arm band 12.
42, the rotary drum 242 of the arm band 12 wound around the outer peripheral surface of the rotary drum 242.
Arm band separation prevention device (guide rollers 280, 281, 282, 283,
284, 285) are provided, and when the rotating drum 242 is driven to rotate in the direction to expand the diameter of the arm band 12, when the arm band 12 having the tip wound around the rotating drum 242 is sent out , Guide roller 2
80, 281, 282, 283, 284, 285 has the advantage that the buckling of the arm band 12 and the inconvenience that the arm band 12 does not return to the original cylindrical shape due to the buckling are suitably prevented.

According to the present embodiment, the distal end side of the arm band 12 is fixed to the outer peripheral surface of the rotary drum 242 through between the guide rollers 285 and 286 and the upper wall 30 of the machine frame 24. Therefore, the resistance when the leading end side is pulled into the machine frame 26 to reduce the diameter of the arm band 12 is reduced. Further, when the distal end side of the arm band 12 is pushed out of the machine frame 26 to expand the diameter of the arm band 12, the pushing position is determined between the guide rollers 285 and 286, so that the cylindrical shape of the arm band 12 in the expanded state. Has the advantage of being stable.

Further, according to the present embodiment, when measuring the blood pressure, the rotary drum 242 is driven by the rotary driving device (motor with reduction gear, pulley 260, belt 262, pulley 264).
Is rotationally driven, the base end is fixedly supported on the machine frame 24 and the front end is fixed to the outer peripheral surface of the rotary drum 242, so that the flexible arm band is bent in a cylindrical shape. 1
2 is reduced in diameter. For this reason, the arm band wrapping device 200 is smaller than a conventional blood pressure measurement arm band wrapping device in which the end portion of the arm band is pulled along a straight line to reduce the diameter of the arm band. At the same time, there is an advantage that the automatic blood pressure measurement device including the arm band winding device 200 becomes small.

According to the present embodiment, the rotating drum 24
2 is provided with a diameter smaller than the maximum diameter of the cylinder constituted by the arm band 12, so that there is an advantage that the blood pressure measurement arm band winding device 200 can be further reduced in size.

Although the embodiment of the present invention has been described with reference to the drawings, the present invention can be applied to other embodiments.

For example, in the embodiments shown in FIGS. 1, 14 and 15, the arm band driving device 48 for moving the distal end portion in the circumferential direction to reduce the diameter of the flexible arm band 12 is mounted. Although the machine frame 26 is rotatably provided on the base 25 by the pins 28, the pins 28 may be located directly below the upper wall 30 of the machine frame 24, It may be directly below. In short, a certain effect can be obtained if it is positioned within the width of the arm band 12 in the width direction.

Further, the machine frame 26 may be rotatable by relative rotating means such as a pivot or an arc-shaped notch instead of a pin 28. Further, in order to rotatably fix the base end portion of the flexible arm band 12 in FIG. Good.

In the embodiment of FIG. 1 described above, when the diameter of the flexible arm band 12 is increased or decreased, the flexible arm band 12
The guide device for guiding the distal end portion of the guide member in the circumferential direction is constituted by the pair of first guide plates 44 and the second guide plates 46, but the pair of first guide plates 44 and the second guide plates 46 It may be constituted by a plurality of guide rollers rotatably provided at the place where they are provided.

In the embodiment shown in FIG. 1, the other end of the fastening tape 60 is wound counterclockwise around the winding roller 50, and the other end of the releasing tape 62 is wound right around the winding roller 50. The other end of the tightening tape 60 is wound clockwise around the winding roller 50, and the other end of the release tape 62 is wound counterclockwise around the winding roller 50. Is also good. In short, the other ends of the fastening tape 60 and the release tape 62 need only be wound around the winding roller 50 in opposite directions.

In the embodiment of FIG. 1 described above, the two fastening tapes 60 and the releasing tape 62 are wound around the outer peripheral surface of the arm band 12 which is turned into a cylindrical shape. The width dimension and the number of the fastening tape 60 and the release tape 62 can be variously changed.

In addition, the arm band 12 of the above-described embodiment is
However, it is not always necessary to provide the flexible belt 18 and the inflatable bag 16.
And the outer peripheral side sheet may be constituted by a common member, or the inner peripheral side sheet of the inflatable bag 16 may be constituted by a composite sheet material in which a rubber sheet or a resin sheet and a cloth or a nonwoven fabric are laminated. .

Further, in the above-described embodiment, instead of the electromagnetic brake 59 functioning as a device for preventing loosening of the arm band, another arm band for preventing rotation of the gears 54, 56, 58, etc. by operating with an electromagnet. A locking device may be used.

Further, in the above-mentioned embodiment, instead of the electromagnetic brake 59 functioning as a device for preventing loosening of the arm band, another arm band for preventing rotation of the gears 54, 56, 58 and the like by operating with an electromagnet. A locking device may be used.

The above is merely an embodiment of the present invention, and the present invention can be variously modified without departing from the gist of the present invention.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a cuff winding device according to an embodiment of the present invention, showing a front surface and a left side surface.

FIG. 2 is a perspective view illustrating the embodiment of FIG. 1, showing a front side and a right side.

FIG. 3 is a partially cutaway view of the base end of the arm band shown in FIG. 1 to explain the configuration of the base end of the arm band.

FIG. 4 is a diagram illustrating a relationship between the arm band of FIG. 1 and a fastening tape and a release tape wound around the outer peripheral surface thereof.

FIG. 5 is a block diagram illustrating an electrical configuration of an automatic blood pressure measurement device including the arm band winding device of the embodiment of FIG. 1;

FIGS. 6A and 6B are diagrams illustrating the shape of the arm band in the reduced diameter state of the embodiment of FIG. 1, wherein FIG. 6A is a plan view and FIG.

FIG. 7 is a perspective view showing a front surface and a left side surface of the embodiment of FIG. 1 in a reduced diameter state, and is a diagram illustrating a state where an upper arm that becomes thinner toward a distal side is fastened by an arm band;

8 is a perspective view showing a front surface and a right side surface of the embodiment of FIG. 1 in a reduced diameter state, and is a diagram for explaining a state where an upper arm that becomes thinner toward a distal side is fastened by an arm band;

9A and 9B are diagrams illustrating the shape of the arm band in the reduced diameter state shown in FIGS. 7 and 8, wherein FIG. 9A is a plan view and FIG. 9B is a front view.

10 is a perspective view showing a front surface and a left side surface of the embodiment of FIG. 1 in a reduced diameter state, and is a diagram for explaining a state in which an upper arm that becomes thicker toward a distal side is fastened by an arm band;

FIG. 11 is a perspective view showing a front surface and a right side surface of the embodiment of FIG. 1 in a reduced diameter state, illustrating a state in which a relatively thin upper arm is fastened by an arm band;

12 is a perspective view showing a front surface and a right side surface of the embodiment of FIG. 1 in a reduced diameter state, and illustrates a state in which an upper arm which is a relatively thin upper arm and becomes thinner toward the distal side is fastened by an arm band; FIG.

FIG. 13 is a perspective view showing an arm band winding apparatus according to another embodiment of the present invention, and is a view corresponding to FIG.

14A and 14B are views for explaining the shape of the arm band in the reduced diameter state shown in FIG. 13, wherein FIG. 14A is a plan view and FIG. 14B is a front view.

FIG. 15 is a perspective view showing an arm band winding apparatus according to another embodiment of the present invention, and is a view corresponding to FIG.

16 is a diagram showing a back surface of the arm band winding device of the embodiment of FIG.

[Explanation of symbols]

 10, 186, 200: arm band winding device 12: arm band 24: machine frame (arm band base end fixing device) 26: machine frame 44: first guide plate, 46: second guide plate (guide device) 48 : Arm band drive device 50: take-up roller 52: electric motor with reduction gear (rotation drive device) 60: fastening tape 62: release tape

Claims (4)

[Claims] 1. A blood pressure measurement for winding a flexible arm band around a part of a living body by reducing the diameter of a cylindrically bent flexible arm band having a substantially horizontal axis when measuring the blood pressure. An arm band winding device, wherein a base end of the flexible arm band that is turned into a cylindrical shape and located on the lower side of the cylinder is substantially tangential to the cylindrical shape of the flexible arm band. An armband base end fixing device that supports the device, a machine frame rotatably provided around a vertical axis positioned within the width dimension of the flexible armband, provided on the machine frame, An armband driving device for reducing the diameter of the flexible armband by moving the distal end of the flexible armband bent in a cylindrical shape toward the outer peripheral side of the cylinder in a substantially tangential direction. And a blood pressure measurement arm band wrapping device. 2. The blood pressure measurement arm band according to claim 1, wherein the arm band base end fixing device fixes the base end portion of the flexible arm band so as to be rotatable around a vertical axis. Winding device. 3. The arm band driving device, wherein the arm band driving device is located on an outer peripheral side of the cylindrically bent flexible arm band and near a base end of the flexible arm band. A winding roller supported by the machine frame so as to be rotatable about a rotation axis substantially parallel to a central axis of the flexible arm band, and a state in contact with an outer peripheral surface of the flexible arm band. A fastening tape that is disposed along the flexible arm band, one end of which is fixed to the base end of the arm band, and the other end of which is wound around the winding roller; The fastening tape is disposed along the flexible arm band in a state of being in contact with the outer peripheral surface of the arm band, one end is fixed to a tip end of the arm band, and the other end is attached to the winding roller. A release tape wound in a direction opposite to the direction in which the flexible arm band is reduced in diameter. A rotation drive device for rotating the take-up roller in a direction opposite to the direction when the diameter of the sex cuff is reduced and applying a tension to the release tape. Arm band wrapping device for blood pressure measurement. 4. The armband drive device is supported by a machine frame so as to be rotatable around a rotation axis substantially parallel to a central axis of the flexible armband that is turned into a cylindrical shape. A rotating drum having a distal end portion of the flexible arm band fixed to an outer peripheral surface so as to form an inflection point near a base end portion of the arm band; 3. The blood pressure measurement arm band wrapping device according to claim 1, further comprising: a rotation driving device that drives the rotary drum to rotate in a direction opposite to a direction in which the sex arm band is bent.