JPH11318835A - Organism pressing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized organism pressing device capable of sufficiently pressing a part of an organism (an artery, in particular). SOLUTION: A pressing device 10 is provided with an air bag for pressing 11, a pressurizing board 13 arranged displaceable on the outside of the bag 11 (a side opposite to the side of the organism), a guide 14 for guiding the board 13 in the direction of an arrow, an air bag for pressurizing 12 arranged on the outside of the board 13, and a belt-like fabric 15 for mounting both of the bags 11, 12 and the board 13 to a wrist part 50. When the bag 12 expands, the bag 11 is pressurized by the board 13 to press a radial vein 54 toward the wrist peripheral side of a radius 52.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a living body compression device used for compressing a living body when measuring blood pressure, pulse wave, and the like from an arm, a wrist, and a finger.

[0002]

2. Description of the Related Art For example, as shown in FIG. 4, a wrist compression device which is wrapped around a wrist when measuring blood pressure from the wrist is an air bag 70 for compressing a wrist 80, and the air bag 70 is attached to the wrist. 80 and a band-shaped cloth (not shown) with a hook-and-loop fastener. In this wrist compression device, as shown in FIG. 4A, a band-shaped cloth is wound around a wrist 80 using a hook-and-loop fastener, and is fixed by inflation of an air bag 70 by air supply. The artery 81 inside 80 is compressed and blocked.

In this type of wrist compression device, in order to sufficiently transmit the internal pressure of the air bag 70 to the artery 81, the width d ₁ of the air bag 70 in the wrist axis direction (wrist longitudinal direction) is empirically set to be approximately equal. It is set to 60 mm.

[0004]

However, the conventional wrist compression apparatus has the following problems. Since the width d ₁ of the air bag 70 is large, it is necessary to roll up the sleeve of the garment every time the compression device is attached to the wrist. Since the air capacity of the air bag 70 is large, when this compression device is provided in a sphygmomanometer, the air supply pump and, consequently, the sphygmomanometer main body inevitably become large. Due to the above, the air bag 70 and the main body of the sphygmomanometer become too large and the compression device cannot be always attached to the wrist.
The compression device must be worn on the wrist every time the measurement is performed.

In order to solve such a problem, when the width d ₂ of the air bag 70 ′ is reduced as shown in FIG. Since the air bag 70 'moves in the axial direction, the internal pressure of the air bag 70' is dispersed, and the pressure of the air bag 70 'is not sufficiently transmitted to the artery 81, so that the artery 81 is not completely occluded. As a result, when the compression device is mounted on the sphygmomanometer, the blood pressure measurement value becomes higher than the true value, and high-precision measurement cannot be performed.

SUMMARY OF THE INVENTION The present invention has been made in view of such conventional problems, and has as its object to provide a living body compression apparatus which is small in size and can sufficiently compress a body part (particularly an artery). I do.

[0007]

According to one aspect of the present invention, there is provided a biological compression device for compressing an artery in a living body part, and a compression fluid bag outside the compression fluid bag. (The side opposite to the living body) is displaceably disposed, and guide means for guiding the compression fluid bag in a predetermined direction of the living body part while being displaced is provided. It is provided with a pressing fluid bag that contracts and inflates a compression air bag against a living body part via a guide means, and a mounting means for mounting the compression fluid bag, the guide means, and the pressing fluid bag on the living body part. It is characterized by.

In this compression device, the guide device is pressed by the pressing fluid bag when the device is mounted on the living body portion by the mounting device and the fluid is supplied to the pressing fluid bag and the pressing fluid bag expands. The compressing fluid bag presses the living body part while being guided in the predetermined direction of the living body part by the guide means. For this reason, the compression device is mounted on the wrist sphygmomanometer, and the guide means is set so as to guide the compression fluid bag from the ulna side in the wrist portion toward the radial side. When the pressing fluid bag is inflated, the compression fluid bag pushes the soft tissue such as the meat of the wrist toward the radial side. Accordingly, the radial artery is pressed against the radius (that is, a portion with a small amount of soft tissue), so that the compressive force is sufficiently transmitted to the radial artery, and the radial artery can be completely occluded.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments. FIG. 1 shows a cross-sectional view of the living body compression device according to the embodiment. FIG. 1 shows a case where the compression device 10 is mounted on a wrist sphygmomanometer.
Is installed. The compression device 10 is inflated and contracted by the inflow and outflow of a fluid (air), and the compression air bladder (for compression) compresses the ulnar artery 53 and the radial artery 54 (particularly the radial artery 54) of the living body part (wrist) 50 by the inflation. Fluid bag) 11
And the outside of the compression air bag 11 (the side opposite to the living body side)
The compression air bag 11 is disposed so as to be displaceable
(Here, composed of the pressing plate 13 and the guide 14) for guiding the wrist in a predetermined direction of the wrist 50, arranged outside the pressing plate 13, expanded and contracted by inflow and out of air, and pressed by expansion. Pressing air bag (pressing fluid bag) 1 for pressing the compression air bag 11 against the wrist 50 via the plate 13
2, a band-shaped cloth (mounting means) 15 for mounting the compression air bag 11, the pressing air bag 12, and the pressing plate 13 on the wrist 50.

The compression air bladder 11 is inflated and contracted by the inflow and outflow of air, but may be one in which a predetermined amount of air is sealed in advance. The pressing plate 13 disposed outside the compression air bag 11 is movably guided by a guide 14 provided on the sphygmomanometer main body 40. Guide 14
As shown in FIG. 1, the air bag 1 extends obliquely across the wrist 50,
1. The pressing air bladder 12 and the pressing plate 13 face the wrist 50 obliquely.

The air bladder 12 disposed outside the pressing plate 13 expands and contracts due to the inflow and outflow of air. Therefore, when the air bladder 12 is inflated, the pressing plate 13 is pressed and the guide 14 is pressed. Move to the wrist 50 side while being guided by
Thereby, the compression air bladder 11 presses the wrist 50 in a predetermined direction. The predetermined direction here is a direction in which the compression fluid bag is moved from the ulna 51 side in the wrist 50 toward the radius 52 side [FIG.
(B) arrow direction].

The band-shaped cloth 15 has a hook-and-loop fastener, and the compression device 10 is attached to the wrist 50 together with the sphygmomanometer main body 40 by making the band-shaped cloth 15 wrapped around the wrist 50 by the hook-and-loop fastener. . That is, in the human wrist 50, the ulna 51 and the ulnar artery 53 are provided on the little finger side of the hand, and the radius 52 is provided on the thumb side.
And the radial artery 54, but the band-like cloth 1 is arranged so that the compression air bladder 11 faces the ulnar artery 53 and the radial artery 54 side.
5, the compression device 10 is mounted on the wrist 50. Several tendons 55 pass between the ulnar artery 53 and the radial artery 54 inside the wrist 50.

FIG. 1 shows a compression device 10 constructed as described above.
(A), the air is supplied to the compression air bladder 11 and the pressing air bladder 12 after being attached to the wrist 50, and when the air bladders 11 and 12 are inflated simultaneously, the air bladder 12 inflates. The plate 13 moves obliquely while being guided by the guide 14. As a result, the compression air bladder 11 is pushed by the pressing plate 13, and the air bladder 11 is connected to the arteries 53 and 54 and the tendon 55 of the wrist 50.
Is pressed in the direction of the arrow.

As a result, the radial artery 54 is squeezed toward the direction with the least soft tissue in the wrist 50, that is, toward the wrist circumference of the radius 52, and does not go under the tendon 55. For this reason, the radial artery 54 is located between the compression air bladder 11 and the radius 52, and the internal pressure of the air bladder 11 is
Fully communicated. Therefore, the blood pressure measurement value does not become higher than the true value, and highly accurate blood pressure measurement can be performed. Moreover, due to the above structure, the compression air bag 1
Even if the width of 1 in the wrist axis direction (wrist longitudinal direction) is small, that is, even if the compression device is downsized, the measurement artery (radial artery 54)
Can be reliably pressed. In addition, compression air bag 11
If the above structure is employed while keeping the width in the axial direction of the wrist the same as that of the conventional one, the measurement accuracy can be improved even for a person with a thick wrist.

In the compression device 10, air is simultaneously supplied to the compression air bladder 11 and the pressing air bladder 12, but the same operation and effect can be obtained in the following embodiments. The air bladder 11 and the air bladder 12 are inflated and contracted with a time difference. A predetermined amount of air is sealed in the air bag 11 in advance, and only the air bag 12 is inflated and contracted. The length of the air bladder 11 in the circumferential direction of the wrist (the transverse direction of the wrist) is set so as not to reach the ulnar artery 53. (The length is a minimum required to compress only the radial artery 54.) FIG. 2 is a cross-sectional view of a living body compression device according to another embodiment. However, the same elements as those of the above-described compression device are denoted by the same reference numerals. In the compression device 20, a pressing plate 13 ′ as a guide unit is hinged to a belt-like cloth 15 so as to be swingable by a support shaft 16. Further, the pressing air bladder 12 is provided so that the pressing plate 13 ′ can swing (rotate) efficiently.
It is of a small size that contacts only the 3 'end (free end). Note that the pressing plate 13 ′ may be hingedly connected to the sphygmomanometer main body 40.

In the compression device 20, when the compression air bladder 11 and the pressing air bladder 12 are simultaneously inflated after being attached to the wrist 50 as shown in FIG. When the free end of the pressing plate 13 'is pressed, the pressing plate 1
3 'rotates about the support shaft 16 in the direction of the arrow in FIG. Here, since the pressing plate 13 ′ has a larger rotational displacement amount from the fixed end side to the free end side, the compression air bladder 11 is pressed more strongly on the ulna 51 side than on the radius 52 side. As a result, the radial artery 54 is pressed toward the direction with the least soft tissue in the wrist 50, that is, toward the wrist circumference of the radius 52 as described above, and the tendon 5
Do not dive inside 5. Therefore, the internal pressure of the air bladder 11 is sufficiently transmitted to the radial artery 54, and the same effect as described above is obtained. Of course, in the compression device 20 as well,
May be adopted.

FIG. 3 is a cross-sectional view of a living body compression device according to still another embodiment. In this compression device 30, the pressing plate as the guide means is composed of two large and small pressing plates 13a and 13b. The pressing plates 13a and 13b are hinged to the band-like cloth 15 so as to be swingable by support shafts 16a and 16b, respectively, and their free ends are connected by links 17.
Of course, the pressing plates 13a and 13b may be hingedly connected to the sphygmomanometer main body 40, or one of the pressing plates 13a and 13b may be hingedly connected to the band-shaped cloth 15 and the other to the sphygmomanometer main body 40. The pressing air bladder 12 is disposed near the link 17,
And presses the free ends of the pressing plates 13a and 13b efficiently. The compression air bladder 11 is a pressing plate 13a.
Only touch the side.

In the compression device 30, when the compression air bag 11 and the pressing air bag 12 are inflated simultaneously, the free ends of the pressing plates 13a and 13b are pushed by the air bag 12, and
Like the pressing plate 13 'of the compression device 20, the air bag 11
Is pushed by the pressing plate 13a to move the radial artery 54 to the wrist 5
0 in the direction of least soft tissue [Fig.
(B)). Thereby, the above-mentioned effect is obtained.

In the above embodiment, an air bag is taken as a fluid bag for compression and pressing, but a fluid bag using a fluid other than air (a gas such as oxygen or carbon dioxide or a liquid such as water). Is also good. In particular, when a liquid such as water is used, it is necessary to make the flow path system a liquid-tight structure so that liquid leakage does not occur.

[0020]

The living body compression device of the present invention has the following effects (1) to (3) because it is configured as described above. (1) Since the internal pressure of the compression fluid bag is sufficiently transmitted to a living body part (particularly an artery), when the compression device is mounted on a sphygmomanometer, the measured blood pressure does not become higher than the true value. Thus, highly accurate blood pressure measurement can be performed. (2) When installing the compression device on a wrist sphygmomanometer,
Even if the width of the compression fluid bag in the wrist axis direction (vertical wrist direction) is small, that is, even if the compression device is downsized, the measurement artery (radial artery) can be reliably compressed. (3) When installing the compression device on a wrist sphygmomanometer,
If the width of the compression fluid bag in the wrist axis direction is made the same as that of the conventional one, the measurement accuracy can be improved even for a person with a thick wrist. (4) Since the width of the fluid bag for compression in the wrist axis direction (vertical wrist direction) may be small, in a wrist sphygmomanometer equipped with the compression device, the compression device can be always attached to the wrist. .

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a structure and an operation when a biological compression device according to an embodiment is provided in a wrist sphygmomanometer main body.

FIG. 2 is a cross-sectional view illustrating a structure and an operation when a body compression device according to another embodiment is provided in a wrist sphygmomanometer main body.

FIG. 3 is a cross-sectional view illustrating a structure and an operation when a biological compression device according to still another embodiment is provided in a wrist sphygmomanometer main body.

FIG. 4 is a view for explaining the operation of an air bag in a living body compression device according to a conventional example.

[Explanation of symbols]

 10, 20, 30 Biological compression device 11 Air bag for compression (fluid bag for compression) 12 Air bag for press (fluid bag for press) 13, 13 'Press plate 13a, 13b Press plate 14 Guide 15 Belt cloth (mounting means) 50 Wrist (living part) 51,52 Ulna, radius 53,54 Ulnar artery, radial artery

Claims (5)

[Claims] 1. A compression fluid bag for compressing an artery in a living body part, and a compression fluid bag arranged to be displaceable outside the compression fluid bag (opposite to the living body side) and displacing the compression fluid bag while displacing the living body part. A guide means for guiding in a predetermined direction, and a pressing fluid bag which is arranged outside the guide means, expands / contracts by the inflow / outflow of the fluid, and presses the compression air bag against the living body part via the guide means by expansion. And a mounting means for mounting the compression fluid bag, the guide means, and the pressing fluid bag on the living body part. 2. The apparatus according to claim 1, wherein said guide means comprises a movable pressing plate in contact with the compression fluid bag, and a guide for guiding the pressing plate to be movable in a predetermined direction.
The biological compression device according to any one of the preceding claims. 3. The body compression apparatus according to claim 1, wherein said guide means is a mounting plate or a pressing plate hinged to a sphygmomanometer main body provided with said compression apparatus. 4. The compression fluid bag is positioned inside a wrist of a living body, and the guide means guides the compression fluid bag from the ulna side to the radial side in the wrist. The biological compression device according to claim 1, 2, or 3. 5. The body compression device according to claim 4, wherein said guide means is displaced more on the ulna side than on the radial side.