JPH1014892A - Pressing device for measurement of blood pressure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pressing device for blood pressure measurement which gives less sense of foreign matter or incompatibility and gives a comfortable sense of fitting without sweating moistening and without bad odor generation at the cuff even though one puts it on for a long time. SOLUTION: A blood pressure measuring device 8 is equipped with a pressure band 10, and at the time of measurement, a peripheral band 12 is contracted by expansion of a long sack 16 while an inner circuference pressing sack 14 is inflated so that its capacity is increased, and thereby a pressure is applied to part of the vital organism threaded into the peripheral band 12 and bore pressing sack 14. At completion of measurement, the sacks 16 and 14 are put in negative pressure, and thereby the band 12 is expanded while the capacity of the sack 14 is shrunk, so that a larger space S than conventional is formed between that part of vital organism which is threaded into them and the pressing sack 14, which decreases favorably the sense of foreign matter and incompatibility, prevents sweating and moistening of the vital organism and also generation of bad odor at the cuff favorably, and achieves a comfortable sense of fitting.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blood pressure measuring compression device for compressing a part of a living body when measuring blood pressure.

[0002]

2. Description of the Related Art An automatic blood pressure measuring device is provided with a bag-shaped compression band wound around an upper arm, for example, a so-called cuff.
In measuring blood pressure, the artery is first stopped by inflating the cuff to a predetermined pressure, and then the pressure of the cuff is gradually decreased at a predetermined speed to collect a pulse wave amplitude used for determining a blood pressure value. When the determination of the blood pressure value is completed, the pressure is released to the standby pressure.

[0003]

However, there is a case where a cuff is worn on a part of a living body for a long time for continuous blood pressure monitoring in a ward or the like. In such a case, 3
Because the cuff is ideally worn around a part of the living body with enough tension to insert a finger, and because the cuff is made of a non-breathable sheet, Even in the pressurized state, since air permeability from the side edge of the cuff cannot be obtained, there has been a problem that sweating and stuffiness under the cuff or an unusual odor of the cuff are generated. In addition, there is a problem that the wearing of the cuff of a certain size in itself makes it impossible to avoid a foreign body sensation and a sense of incongruity in the upper arm.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to reduce the feeling of foreign matter and unpleasant sensation. An object of the present invention is to provide a compression device for measuring blood pressure, which can provide a comfortable wearing feeling without occurrence of bleeding.

[0005]

A first aspect of the present invention for achieving the above object is a compression device for compressing a part of a living body at the time of measuring blood pressure. ) A plurality of long bags continuous at a predetermined interval in the circumferential direction and continuous in the width direction, and a connecting member for connecting the long bags to form a cylindrical shape as a whole. An outer peripheral band that is reduced in diameter in connection with expansion, and (b) an inner peripheral compression bag provided inside the outer peripheral band and having a variable volume.

[0006]

According to the first aspect of the present invention, when measuring the blood pressure, the outer peripheral band is reduced in diameter by expansion of the longitudinal bag and the inner peripheral compression bag is expanded to increase its volume. A part of the living body passed through the outer peripheral band and the inner peripheral compression bag is compressed. Further, when the blood pressure measurement is completed, the outer peripheral band is expanded and the volume of the inner peripheral compression bag is reduced by releasing the longitudinal bag and the inner peripheral compression bag to the atmospheric pressure or setting the pressure to a negative pressure. Therefore, between the part of the living body passed through them and the inner circumference compression bag,
Since a large space is formed as compared with the related art, a foreign body sensation and a sense of incongruity are suitably reduced.
Alternatively, the generation of an unpleasant odor of the cuff is suitably prevented, and a comfortable wearing feeling is obtained.

[0007]

In another preferred embodiment of the present invention, the connecting member for connecting the elongated bags of the outer peripheral band preferably has a plurality of through holes penetrating in a thickness direction thereof. By doing so, the ventilation in the radial direction of the outer peripheral band having a cylindrical shape can be enhanced, so that there is an advantage that a more comfortable wearing feeling can be obtained.

[0008] Preferably, the inner peripheral compression bag is formed in a cylindrical shape by winding a single flat belt-like bag. This has the advantage that the inner peripheral compression bag is simply configured as in the prior art, and the device is inexpensive.

Preferably, the inner peripheral compression bag is formed in a cylindrical shape by a plurality of annular bags arranged at predetermined intervals in the width direction and communicated with each other. By doing so, the radial permeability of the inner peripheral compression bag is increased, so that the inner peripheral compression bag is particularly combined with the outer peripheral band connected to the longitudinal bag by a connecting member having a plurality of through holes penetrating in the thickness direction. In this case, there is an advantage that the air permeability in the radial direction is remarkable.

[0010] Preferably, the cylindrical inner peripheral compression band formed by winding the single flat belt-shaped bag or the cylindrical inner peripheral compression bag formed by a plurality of annular bags is one. Are arranged in the mesh bag of the above. With this configuration, the plurality of annular bags are connected to each other within a single mesh bag within a range that does not impair the degree of freedom of expansion of each other, so that it is possible to preferably prevent the annular bags from protruding from inside the outer peripheral band. Is done.

Preferably, the compression device for measuring blood pressure includes: (c) an external pressure control device for controlling a pressure in the longitudinal bag of the external band; and (d) an external pressure control device in the internal compression bag. An inner peripheral pressure control device for controlling pressure, (e) at the time of measuring the blood pressure, after supplying a predetermined volume of air into the inner peripheral compression bag,
An outer peripheral band reducing means for increasing the pressure in the longitudinal bag of the outer peripheral band and tightening the outer peripheral band until the pressure in the inner peripheral compression bag reaches a preset target value. It is. With this configuration, the outer peripheral band is reduced in diameter until the pressure in the inner peripheral compression bag to which a predetermined volume of air has been supplied reaches the target value, so that the outer peripheral band is tightened regardless of the shape of a part of the living body. There is an advantage that the wearing state is constant.

Preferably, the pressure in the inner peripheral compression bag is set in advance after the outer peripheral band is tightened by the outer peripheral band reducing means. (G) the pressure in the longitudinal bag of the outer peripheral band in relation to the pressure in the inner peripheral compressing bag being increased by the compressing pressure control unit. And a slack preventing means for preventing the outer peripheral band from loosening by increasing the pressure. With this configuration, the outer peripheral band is suitably prevented from being loosened by the reaction force generated in association with the increase in the pressure in the inner peripheral compression bag.

Preferably, the compression device for measuring blood pressure includes: (h) an external pressure control device for controlling a pressure in the longitudinal bag of the external band; and (i) a pressure device in the internal compression bag. An inner peripheral pressure control device for controlling pressure, and (j) when the blood pressure measurement is completed, by setting the inner peripheral compression bag and the longitudinal bag of the outer peripheral band to a negative pressure, thereby using the inner peripheral compression bag. Outer peripheral band expanding means for eliminating the compression and expanding the outer peripheral band at the same time,
It is also included. With this configuration, the outer peripheral band and the inner peripheral compression bag in the non-compressed state are maximized in diameter, so that there is an advantage that the gap between the living body and the living body is formed large.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of an automatic blood pressure measurement device 8 to which a compression device for blood pressure measurement according to one embodiment of the present invention is applied will be described in detail with reference to the drawings.

In FIG. 1, a compression band 10 for compressing, for example, the upper arm of a living body includes a cylindrical outer peripheral band 12,
And a cylindrical inner peripheral compression bag 14 provided inside the outer peripheral band 12. Each of the outer peripheral band 12 and the inner peripheral compression bag 14 is formed in a bag shape from a flexible sheet material that can be inflated and deformed, and has an annular shape that can be wound around the inner peripheral side of the inner peripheral compression bag 14 toward the outer peripheral side of the outer peripheral band 12. A connecting means such as a belt or a string, a hook means such as a hook fitting for detachably hooking the other to one of the outer circumferential band 12 and the inner circumferential compression bag 14, and an inner circumferential surface of the outer circumferential band 12 such as a double-sided adhesive tape. By means (not shown) for preventing relative movement in the axial direction, such as bonding means for bonding a part of the surface and a part of the outer peripheral surface of the inner peripheral compression bag 14 to each other, the degree of freedom of each inflation is not hindered. Fixed or connected.

The outer peripheral band 12 is preferably formed by bonding a pair of non-stretchable sheet materials such as a fiber-reinforced synthetic resin sheet to each other by, for example, high-frequency welding. As shown in FIG. 2, at a predetermined interval in the circumferential direction,
Are formed in a cylindrical shape as a whole having a plurality of longitudinal bags 16 continuous in the width direction of the pair and a connecting sheet 18 located between the longitudinal bags 16 and connecting them. The entire length of the bag 16 is reduced in relation to the expansion of the bag.

The plurality of elongated bags 16 are communicated with each other by a communication passage 20 formed in the connection sheet 18 and are connected to a flexible outer hose 22. Each of the connection sheets 18 has a plurality (four in this embodiment) penetrating in the thickness direction.
Are formed respectively, and the air permeability in the radial direction is enhanced.

As shown in FIG. 3, for example, the inner peripheral compression bag 14 is formed in a cylindrical shape by winding a single inflatable flat-belt-shaped bag. Are connected to a flexible inner peripheral side hose 26. The inner peripheral compression bag 14 is preferably made of a stretchable rubber sheet having a relatively thin thickness of about 0.02 to 0.2 mm, and is made inflatable to a relatively large volume and lightweight. I have.

The outer hose 22 and the inner hose 26 are connected to pressure sensors 28 and 30 and air pumps 32 and 34, respectively.
Are connected to pressure control valves 36 and 38 for controlling the pressure in the longitudinal bag 16 of the outer peripheral band 12 and the pressure in the inner peripheral compression bag 14, respectively, using the discharge pressure as the original pressure.

Detects pressure in the longitudinal bag 16 of the outer peripheral band 12
Pressure sensor 28 indicates the pressure in the longitudinal bag 16.
Pressure signal SP₁Is supplied to the low-pass filter 40.
The low-pass filter 40 outputs the pressure signal SP₁In the
The flow component is discriminated to extract the static pressure signal.
Pressure P in belt 12_OUTCalculates the outer peripheral pressure signal SG representing
It is supplied to the A / D converter 44 of the control circuit 42. Also,
The pressure sensor 30 for detecting the pressure in the peripheral compression bag 14 is
Pressure signal SP representing the pressure in the inner peripheral compression bag 14 of FIG. _TwoThe low
Supply to pass filter 46 and band pass filter 48
I do. The low-pass filter 46 outputs the pressure signal SP_TwoIncluded in
The DC component is discriminated and the static pressure component is extracted.
Cuff pressure P_CA / D converter 4 outputs a cuff pressure signal SK indicating
Output to 4. Further, the band-pass filter 48 has a pressure
Signal SP_TwoIncluded in, for example, 0.3 to 30 Hz
This is to extract the pulse wave composed of frequency components.
The pulse wave signal SM is output to the A / D converter 44. Living body
The inner compression bag 14 wrapped around the upper arm etc.
A pressure oscillation synchronized with the heartbeat is generated based on the
The force vibration is detected as a pulse wave. In addition, A /
The D-converter 44 is a time-division multiplexer for the three types of input signals.
Luchiplexer is included, and these three types of input signals
A / D conversion function for converting digital signals into digital signals in parallel
I have.

The arithmetic and control unit 42 includes a CPU 50, a RAM
52, a ROM 54, an output interface 56, and a display interface 58. The CPU 50 stores a signal input from the A / D converter 44 in the ROM 54 in advance while using a temporary storage function of the RAM 52. Process according to the program
The air pumps 32, 3 via the output interface 56
4 and the pressure control valves 36 and 38,
The display 60 is driven and controlled via the display interface 58. The display 60 includes an image display plate capable of displaying numerical values and waveforms by a large number of light emitting elements, and a printing machine capable of displaying numerical values and waveforms on paper with ink.

FIG. 4 is a functional block diagram for explaining a main control function of the arithmetic and control unit 42. As shown in FIG. In the figure, an outer peripheral pressure control device 62 is composed of the air pump 32 and the pressure control valve 36,
The pressure in the outer peripheral band 12 is controlled in accordance with the command from The inner peripheral pressure control device 64 is composed of the air pump 34 and the pressure control valve 38, and the arithmetic control device 42
The pressure in the inner peripheral compression bag 14 is controlled in accordance with the command from.

The outer peripheral band diameter reducing means 66 is used for measuring blood pressure.
After supplying a predetermined volume of air into the inner peripheral compression bag 14,
The pressure in the inner peripheral compression bag 14 is set to a preset target value P.
_AUntil the pressure P reaches the pressure P in the longitudinal bag 16 of the outer peripheral band 12.
_OUTAnd the outer peripheral band 12 is tightened. Compression control
The means 68 is provided with the outer peripheral band 12 by the outer peripheral band diameter reducing means 66.
After the diameter is reduced and tightened, the inner circumferential compression bag 14 is
Pressure P_CAccording to the preset blood pressure measurement procedure.
To For example, the pressure P in the inner peripheral compression bag 14 _CForecast
After the blood pressure is rapidly increased to the set hemostatic pressure, the blood pressure value is determined.
3mmHg / sec to collect pulse wave amplitude used for measurement
The blood pressure is gradually lowered at a predetermined speed, and the determination of the blood pressure value is completed.
Then, it rapidly drops to the atmospheric pressure.

The anti-loosening means 70, the pressure P in the longitudinal bag 16 of the outer band 12 with respect to the pressure P _C of the inside inner pressing bag 14 by the pressure changing means 68 is raised
By increasing the pressure of _OUT , loosening of the outer peripheral band 12 due to expansion of the inner peripheral compression bag 14 is prevented. That is, the pressure P _OUT in the longitudinal bag 16 is increased so as to generate a reaction force (tightening force) that increases in association with the expansion of the inner peripheral compression bag 14.

When the measurement of the blood pressure is completed, the outer peripheral band expanding means 72 opens the longitudinal bag 1 inside the inner peripheral compression bag 14 and the outer peripheral band 12.
In addition to making the inside of the body 6 atmospheric pressure, the air pumps 32 and 34 are reversed to create a negative pressure, so that the compression by the inner circumference compression bag 14 is eliminated and the outer peripheral band 12 is expanded in diameter. A relatively large space S is actively formed with the skin.

FIG. 5 is a flowchart for explaining a main part of the control operation by the arithmetic and control unit 42, that is, a pressure control routine of the compression band 10. In step SA1 of FIG. 5 (hereinafter, step is omitted), it is determined whether or not the operation of measuring the blood pressure of the blood pressure measurement device 8 has been started by operating a start operation button (not shown). If the determination at SA1 is denied, this routine is terminated. 6 and 7 show the compression band 10 at this time. 6 and 7 show a longitudinal section and a transverse section, respectively, in a state where the compression band 10 is attached to the arm 74 of the living body.

If the determination in SA1 is affirmative, in SA2 corresponding to the outer peripheral band diameter reducing means 66, after a predetermined volume of air is supplied into the inner peripheral compression bag 14 by the pressure control valve 38, the pressure is reduced. The inner peripheral compression bag 1 is controlled by the control valve 36.
The pressure P _OUT of the longitudinal bag 16 of the outer band 12 until the pressure in the 4 reaches a preset target value P _A, for example, about 30mmHg is boosts outer peripheral band 12 is worn tightened.

Next, in SA3 corresponding to the compression pressure control means 68, the pressure P _C in the inner compression bag 14 is controlled by the pressure control valve 38 in the state where the outer peripheral band 12 is reduced in diameter as described above. It is changed according to a preset blood pressure measurement procedure. For example, after the pressure P _C in the inner peripheral compression bag 14 is rapidly increased to a preset hemostatic pressure of about 180 mmHg, it is used for a blood pressure value determination according to, for example, an oscillometric method executed in a blood pressure value determination routine (not shown). 3mmHg / sec for sampling pulse wave amplitude
The blood pressure is gradually lowered at a predetermined speed, and when the determination of the blood pressure value is completed, the blood pressure is rapidly lowered to the atmospheric pressure.

Furthermore, in SA4 corresponding to the loosening prevention means 70, in relation to the pressure P _C of the inside inner pressing bag 14 by the SA3 is raised, the longitudinal outer peripheral zone 12 by the pressure control valve 36 By increasing the pressure P _OUT in the bag 16, the outer peripheral band 12 is prevented from being loosened due to the expansion of the inner peripheral compression bag 14. For example, the pressure P _OUT in the longitudinal bag 16 is increased based on the actual pressure P _C in the inner compression bag 14 from a preset relationship as shown in FIG. Thus, a tightening force of a magnitude that just prevents the extension of the outer peripheral band 12 associated with the expansion of the outer peripheral band 12 is generated in the outer peripheral band 12.
9 and 10 show a longitudinal sectional view and a transverse sectional view, respectively, of a state in which compression is performed by the inner peripheral compression bag 14, for example.

At SA5, it is determined whether or not the blood pressure value determination in the blood pressure value determination routine (not shown) has been completed. If the determination in SA5 is negative, by the SA3 below is repeatedly executed, the pressure P _OUT of the longitudinal bag 16 associated gradual rise and that of the pressure P _C of the inside inner pressing bag 14 The pressure increase is continued.
However, when the blood pressure value determination in the blood pressure value determination routine is completed, the determination in SA5 is affirmative, so that in SA6 corresponding to the outer peripheral band expanding means 72, the longitudinal shape of the inner peripheral compression bag 14 and the outer peripheral band 12 is determined. Not only is the pressure inside the bag 16 set to the atmospheric pressure, and the compression by the inner circumferential compression bag 14 is eliminated, but also the air pumps 32 and 34 are reversed to create a negative pressure, thereby increasing the diameter of the outer peripheral band 12 and The inner peripheral compression bag 14 attached to the inner side of the outer peripheral band 12 is expanded in diameter. As shown in FIGS. 6 and 7, a comparison is made between the skin of the living body and the outer peripheral band 12 and the inner peripheral compression bag 14. Large space S
Are positively formed.

As described above, the blood pressure measuring device 8 of the present embodiment
According to the compression band 10 provided at the time, when measuring the blood pressure, the outer peripheral band 12 is reduced in diameter by expansion of the longitudinal bag 16 and the inner peripheral compression bag 14 is expanded to increase its volume. A part of the living body inserted into the outer peripheral band 12 and the inner peripheral compression bag 14 is compressed.
In addition, when the blood pressure measurement is completed, the outer peripheral band 12 is expanded and the volume of the inner peripheral compression bag 14 is reduced by setting the longitudinal bag 16 and the inner peripheral compression bag 14 to a negative pressure. Since a large space S is formed between the part of the living body passed through them and the inner peripheral compression bag 14 as compared with the related art, the feeling of foreign matter and uncomfortable feeling is suitably reduced, and Sweating and stuffiness, generation of cuff odor, and the like are suitably prevented, and a comfortable wearing feeling is obtained.

In this embodiment, since the connecting sheet 18 for connecting the longitudinal bags 16 of the outer peripheral band 14 has a plurality of through holes 24 penetrating in the thickness direction, the connecting sheet 18 has a cylindrical shape. There is an advantage that the air permeability in the radial direction of the outer peripheral band 14 is enhanced, and a more comfortable wearing feeling can be obtained.

Further, since the inner peripheral compression bag 14 of the present embodiment is formed in a cylindrical shape by winding one flat belt-shaped bag, the inner peripheral compression bag 14 is the same as the conventional one. This is advantageous in that the configuration is simple and the apparatus is inexpensive.

The compression device for measuring blood pressure according to the present embodiment includes an outer pressure control device 62 for controlling the pressure P _OUT in the longitudinal bag 16 of the outer band 12 and a pressure P in the inner pressure bag 14.
_The inner peripheral pressure control device 64 for controlling _C , and when measuring blood pressure, after supplying a predetermined volume of air into the inner peripheral compression bag 14, the pressure P _C in the inner peripheral compression bag 14 is, for example, 30 mm.
Hg order to the outer peripheral zone diameter section 66 which boosts the pressure P _OUT of the longitudinal bag 16 of the outer band 12 put tighten the outer peripheral band 12 (SA2) is provided to reach the preset target value P _A since being, since the outer peripheral band 12 until the pressure P _C of the inside inner pressing bag 14 air having a predetermined volume is supplied to reach the target value P _a is reduced in diameter, the shape of part of a living body Regardless, there is an advantage that the fastening state of the outer peripheral band is constant.

After the outer peripheral band 12 is tightened by the outer peripheral band diameter reducing means 66 (SA2), the pressure in the inner peripheral compression bag 14 is set in advance in the blood pressure measuring compression device of this embodiment. and a pressure changing means 68 vary according to the blood pressure measurement procedure (SA3), the longitudinal bag of the peripheral band 12 in relation to the pressure P _C of the inside inner pressing bag 14 is raised by the pressure changing means 68 Since the pressure P _OUT in the pressure _riser 16 is increased, the loosening prevention means 70 (SA4) for preventing the outer peripheral band 12 from being loosened is provided.
That the outer peripheral band 12 is loosened it is suitably prevented by a reaction force generated in relation to the increase in pressure P _C of the inside inner pressing bag 14.

In addition, when the blood pressure measurement is completed, the inside of the inner compression bag 14 and the inside of the longitudinal bag 16 of the outer peripheral band 12 are set to a negative pressure, so that the inner circumference of the compression device for blood pressure measurement of the present embodiment is reduced. Since the outer peripheral band expanding means 72 (SA6) for expanding the outer peripheral band 12 while eliminating the compression by the compression bag 14 is provided, the outer peripheral band 12 and the inner peripheral compression bag 14 in the non-compressed state are maximized. Since the diameter is enlarged, there is an advantage that the gap S between the living body and the living body is formed large.

Next, another embodiment of the present invention will be described. In the following description, portions common to the above-described embodiments will be denoted by the same reference numerals and description thereof will be omitted.

A compression band 80 according to another embodiment of the present invention.
Has an outer peripheral band 12 shown in FIG. 2 and an inner peripheral compression bag 82 shown in FIG. The inner peripheral compression bag 82 is formed in a cylindrical shape by a plurality (five in this embodiment) of annular bags 84 arranged at predetermined intervals D in the width direction, that is, in the axial direction of the compression band 80. It is a thing. The annular bag 84 is provided with the inner circumferential compression bag 14 described above.
It is made of the same material as that of the above and is configured to be inflatable, communicated with each other through a communication passage (not shown), and connected to the inner peripheral side hose 26. In addition, the annular bag 8
4 is fixed to the outer peripheral band 12 as necessary,
The annular bag 84 is housed in the cylindrical space inside the cylindrical mesh bag 86 surrounded by the inner cylindrical portion and the outer cylindrical portion, so that the annular bag 84 is prevented from being separated from the outer peripheral band 12. This cylindrical mesh bag 8
6, the outer peripheral band 1 is also prevented by the connecting means, the engaging means, the adhesive means and the like as described above so that relative movement in the axial direction is prevented.
2 are fixed inside.

In the compression band 80 of the present embodiment, when measuring the blood pressure, similarly to the compression band 10, the outer peripheral band diameter reducing means 66, the compression pressure control means 68, the loosening prevention means 70, and the outer peripheral band expanding means are used. 72, the outer peripheral band 12 and the inner peripheral compression bag 8
Since the pressure of No. 2 is changed, the same effect as in the above-described embodiment can be obtained. FIG. 12 is a diagram corresponding to FIG. 6 illustrating the non-compression state of the compression band 80, and FIG. 13 is a diagram corresponding to FIG. 9 illustrating the compression state of the compression band 80.

Further, according to this embodiment, the inner peripheral compression bag 82
Is constituted by a plurality of annular bags 84 spaced apart from each other in the width direction, thereby increasing the air permeability in the radial direction. In particular, the connection sheet 18 having a plurality of through holes 24 penetrating in the thickness direction. Outer peripheral band 1 to which the longitudinal bags 16 are connected
2 has an advantage that the air permeability in the radial direction is remarkable.

Further, according to the present embodiment, since the plurality of annular bags 84 are disposed in one cylindrical mesh bag 86, the plurality of annular bags 84 are Since they are connected to each other in a range where the degree of freedom of mutual expansion is not impaired by the mesh net 86, it is possible to suitably prevent the outer peripheral band 12 from protruding from the inside.

While 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, the outer peripheral band 12 and the inner peripheral compression band 14 in the above-described embodiment are formed in an endless cylindrical shape, but a belt-like shape having connecting means such as a fastener at both ends on a part of the circumference. And both ends may be connected to each other by connecting means to form a cylindrical shape as a result.

In addition, the outer peripheral band 12 has the longitudinal bags 16 provided at equal intervals on the entire circumference, but the longitudinal bags 16 may be provided on a part of the entire circumference. . In short, what is necessary is just to be able to reduce the diameter by expansion of the longitudinal bag 16.

Although the inner peripheral compression bag 14 is formed in a bag shape on the entire circumference, a part of the entire circumference may be formed in a bag shape. In short, it suffices if the living body is configured to be able to compress the living body by the expansion.

Further, in the above-described embodiment, the outer peripheral band expanding means 72 for setting the outer peripheral band 12 and the inner peripheral compression bag 14 to a negative pressure after the completion of the blood pressure determination is provided, but is not necessarily provided. Is also good.

In the above embodiment, the inner peripheral compression bag 14
After the internal pressure _Pc was raised to the arresting pressure, the pressure was controlled so as to be gradually lowered at a predetermined speed.However, the pressure was gradually raised at a predetermined speed to collect the pulse wave amplitude. When the determination of the blood pressure value is completed, the pressure may be controlled so that the pressure is reduced to the atmospheric pressure or the negative pressure.

The inner peripheral compression bag 14 of FIG. 3 may be provided in a cylindrical mesh bag 86 as shown in FIG.

Although not specifically exemplified, the present invention can be implemented in various modified and improved forms based on the knowledge of those skilled in the art.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a blood pressure measurement device to which a compression device according to an embodiment of the present invention is applied.

FIG. 2 is a perspective view for explaining in detail a configuration of an outer peripheral band constituting the compression band of FIG. 1;

FIG. 3 is a perspective view for explaining in detail a configuration of an inner peripheral compression bag constituting the compression band of FIG. 1;

FIG. 4 is a functional block diagram for explaining a main part of a control function of the arithmetic and control circuit of the embodiment of FIG. 1;

FIG. 5 is a flowchart illustrating a main part of a control operation of the arithmetic control circuit in FIG. 1;

FIG. 6 is a longitudinal sectional view showing a non-compression state of the compression band in the embodiment of FIG.

FIG. 7 is a cross-sectional view showing a non-compression state of the compression band in the embodiment of FIG. 1;

FIG. 8 is a diagram showing a relationship used for pressure control of an outer peripheral band in a compression process of a living body in the embodiment of FIG.

FIG. 9 is a longitudinal sectional view showing a compression state of the compression band in the embodiment of FIG. 1;

FIG. 10 is a cross-sectional view showing a compression state of the compression band in the embodiment of FIG. 1;

FIG. 11 is a perspective view illustrating in detail a configuration of an inner peripheral compression bag of a compression band according to another embodiment of the present invention.

FIG. 12 is a longitudinal sectional view for explaining in detail a non-compression state of the compression band in the embodiment of FIG. 11;

13 is a longitudinal sectional view showing a compression state of the compression band in the embodiment of FIG. 11; It is a perspective view.

[Explanation of symbols]

 10: compression band 12: outer circumference band 14, 82: inner circumference compression bag 16: longitudinal bag 18: connection sheet (connection member) 24: through hole 62: outer circumference pressure control device 64: inner circumference pressure control device 66: outer circumference band Diameter reducing means 68: Compression pressure control means 70: Outer peripheral band loosening preventing means 72: Outer peripheral band expanding means 86: Cylindrical mesh bag (mesh bag)

Claims (8)

[Claims] 1. A compression device for compressing a part of a living body at the time of blood pressure measurement, comprising: a plurality of elongated bags continuous at a predetermined interval in a circumferential direction and continuous in a width direction; An outer peripheral band having a connecting member for coupling and having a cylindrical shape as a whole, the diameter of which is reduced in relation to the expansion of the longitudinal bag; and an inner peripheral compression provided inside the outer peripheral band and having a variable volume. A compression device for measuring blood pressure, comprising: a bag. 2. The compression device for blood pressure measurement according to claim 1, wherein the connecting member connecting the elongated bags of the outer peripheral band has a plurality of through holes penetrating in a thickness direction thereof. 3. The compression device for blood pressure measurement according to claim 1, wherein the inner peripheral compression bag is formed in a cylindrical shape by winding a single flat belt-like bag. 4. The inner peripheral compression bag is formed in a cylindrical shape by a plurality of annular bags arranged at predetermined intervals in a width direction and communicated with each other.
Compression device for measuring blood pressure. 5. The compression device for measuring blood pressure according to claim 3, wherein the inner circumference compression bag is disposed in one mesh bag. 6. An outer peripheral pressure control device for controlling the pressure in the longitudinal bag of the outer peripheral band, an inner peripheral pressure control device for controlling the pressure in the inner peripheral compression bag, After supplying a predetermined volume of air into the peripheral compression bag, the pressure in the longitudinal bag of the outer peripheral band is increased by increasing the pressure in the longitudinal bag of the outer peripheral band until the pressure in the inner peripheral compression bag reaches a preset value. The compression device for blood pressure measurement according to claim 1, further comprising means for reducing an outer peripheral band to be fastened. 7. The compression pressure control means for changing the pressure in the inner compression bag in accordance with a preset blood pressure measurement procedure after the outer circumference band has been tightened by the outer circumference band diameter reducing means. A pressure control means for raising the pressure in the longitudinal bag of the outer peripheral band in association with the pressure in the inner peripheral compression bag being increased, and a loosening preventing means for preventing the outer peripheral band from being loosened. The compression device for measuring blood pressure according to claim 6, wherein the compression device includes: 8. An outer peripheral pressure control device for controlling a pressure in a longitudinal bag of the outer peripheral band, an inner peripheral pressure control device for controlling a pressure in the inner peripheral compression bag, Claims: An outer peripheral band expanding means for reducing the pressure by the inner peripheral compressing bag and simultaneously expanding the outer peripheral band by making the inner peripheral compressing bag and the inside of the longitudinal bag of the outer peripheral band a negative pressure. 1. A compression device for measuring blood pressure.