JPS6233896B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cuff band for a blood pressure monitor, and more particularly to a technique for accurately measuring blood pressure.

The cuff band is curved along the upper arm,
It is known that the curved shape is convenient because it can be attached directly to the upper arm without using an auxiliary band or reversing metal fittings, etc., to obtain an appropriate wrapping condition and to allow temporary attachment.

By the way, in the past, the sound collection cuff was stored inside the cuff band in the circumferential direction so that Korotkoff sounds could be recorded reliably even if the attachment position was slightly shifted from the artery position, but the sound collecting cuff was stored inside the cuff band in the circumferential direction. When wrapped around the upper arm, wrinkles formed in the fabric, making the contact between the sound collecting cuff and the arm unstable, causing noise, poor detection of Korotkoff sounds, and other reliability concerns. .
Particularly in the case of a curved cuff band, the formation of wrinkles on the inner surface of the sound collecting section gives the person being measured a sense of distrust even before the wearer wears the cuff band, resulting in a significant loss of trust. In addition, conventional blood pressure monitors have the disadvantage that when pressurized and pressed against the upper arm, the peripheral edge gets wedged, causing pain.

The present invention was made in view of these problems, and its purpose is to curve the cuff band to make it easier to use.
To provide a cuff band for a blood pressure monitor that does not wrinkle the sound collecting cuff, can stably contact the skin of the measuring part, and can perform accurate measurements without causing pain. .

That is, the present invention is a curved cuff band 1, in which the sound collecting cuff 4 is provided on the outer surface of the inner circumferential side of a bag body 42 that accommodates the ischemic cuff 5 so as to overlap with the ischemic cuff 5, and the sound collecting cuff 4 is provided on the upper arm portion of the sound collecting cuff 4. This relates to a cuff band of a blood pressure monitor characterized by forming an inclined flange 28 on the circumferential portion that contacts the cuff 6 to suppress contact in a small area. The above objectives were achieved.

Embodiments of the present invention will be described in detail below with reference to the drawings.

Reference numeral 1 denotes a cuff band, which is composed of an attachment part 7 that can be attached to the upper arm 6 of a human body, and a flexible sheet-like binding part 8 that is formed in series on this attachment part 7. It has been done. One of the fasteners 9 of the planar fastener is attached to the outer surface of the attachment part 7, and the binding part 8
The other fastener 1 of the planar fastener is attached to the inner surface of the tip.
0 is provided, and the cuff band 1 is attached to the upper arm by attaching the attachment device 7 to the upper arm 6, wrapping the cuff band portion 8 over it, and attaching and tying the cuff band 1 to the upper arm. It is arranged so that it can be wrapped around the section 6.

As shown in FIG. 2, the mounting portion 7 is curved in a free state without any external force applied to it, and between both ends of the curved portion 2 there is an opening into which the upper arm 6 can be press-fitted or easily inserted for thin people. 3 is formed, the upper arm part 6 is inserted through the opening 3, and the person to be measured can easily wear the mounting part 7 by himself or herself.

The curved portion 2 of the mounting portion 7 includes a curved plate 15;
An ischemic cuff 5 and a sound collecting cuff 4 are provided, and the entire mounting portion 7 is curved. The configuration will be explained below.

The ischemic cuff bag 11 formed in a bag shape is connected to the binding band part 8 by two outer cloths 12 as a bag body 42,
13 to form an ischemic cuff 5. A curved plate 2 is arranged on the outside of the inner outer cloth 13, an outer sheet 14 provided with a fastener 9 is arranged further outside the curved plate 2, and the outer sheet 14 is attached to the outermost outer cloth 12.
A curved plate 15 is built in by heat-sealing the circumference of the cuff 5 to curve the ischemic cuff 5.

The length of the ischemic cuff 5 is specified to be 220 mm to 240 mm so that even a person with a thick upper arm 6 can achieve complete ischemia, but in a person with a thin upper arm 6, the ischemic cuff 5 may extend more than one turn. Therefore, in the cuff band 1 of the present invention, the curved plate 15 temporarily fixed to the upper arm 6 is
It is shorter than the ischemic cuff 5 and has a curved shape suitable for people with thin arms. For example, it is determined that the appropriate inner diameter of this curve is approximately φ60 to 70 mm.

The curved plate 15 is inserted between the outer sheet 14 and the outer cloth 12, but the ischemic cuff bag 11 and the curved plate 1
The outer cloth 12 interposed between the outer cloth 12 and the outer cloth 12 is made of a base cloth with a low coefficient of friction such as nylon with good slippage, and the curved plate 15 is also made of nylon, so it is suitable for people with different arm thicknesses. Even when it is attached and pressurized, the curved plate 15 slides smoothly in the circumferential direction, and there is no possibility of generating noise or tearing the ischemic cuff bag 11 due to friction. In particular, since the generation of fricative sounds can be suppressed, there is no need to disturb the reception of Korotkoff sounds during blood pressure measurement. And since the curved plate 15 is on the outside of the ischemic cuff 5,
This improves pressure transmission from the ischemic cuff 5 to the upper arm 6.

One end of the curved plate 15 is bent outward as shown in FIG.
It is designed so that it can be easily inserted and removed. The cuff pipe (described later) and the outlet of the sound collecting cuff 4 are offset from the center of the curved part 2, so that when the cuff band 1 is attached to the upper arm 6, the artery position and the center of the sound collecting part coincide. There is.

The ischemic cuff bag 11 is made of rubber, and the inner sheet 16 of the ischemic cuff bag 11 in the longitudinal direction of the cuff band 1 is
The length of the outer sheet 17 is made longer than the length of the bag 11, and the ischemic cuff bag 11 itself is also curved. By curving the ischemic cuff bag 11 in an arc shape in this way,
The ischemic cuff bag 11 is curved in an arc shape even during blood pressure measurement when the inside thereof is filled with pressurized air.
Therefore, the outer fabric 13 inside the ischemic cuff bag 11 is not wrinkled either. By the way, in the past, when filled with pressurized air, if an external force was applied to force the ischemic cuff bag to be wrapped around the upper arm, wrinkles were formed on the inner surface of the ischemic cuff bag, which was about to be stretched into a flat shape. As a result, wrinkles occur on the inner surface of the cuff band, and the epidermis and muscles of the upper arm are caught in these wrinkles, causing pain to the person being measured and increasing the pressure inside the ischemic rubber cuff bag. However, noise such as rubbing noise is generated due to wrinkles and the return effect, and when the Korotkoff sound is detected and blood pressure is measured, it enters the Korotkoff sound collection part as disturbance sound, making it difficult to accurately measure blood pressure. Although it was not possible to measure blood pressure, the above-mentioned problem can be solved by the configuration in which the ischemic cuff bag 11 is curved as described above.

By the way, the ischemic cuff bag 11 can be manufactured by forming an aluminum plate, etc., which will serve as an electrode during the rubber tapping process, into an arc shape, or by joining two flexible sheets together by welding or the like. 1
The cuff bag portions 2 and 13 may be made of cloth or a slightly flexible synthetic resin sheet.

The sound collecting cuff 4 is a molded product made of ethylene vinyl acetate copolymer (EVA) as shown in Fig. 7, and as shown in Fig. 9, a concave groove 18 is formed on the inner surface and the whole is curved. A sound recording film 19 made of polyethylene is adhered to the circumferential portion of the groove 18 to close the groove 18. A series of microphone holding parts 20 are formed in the sound collection cuff 4, into which a microphone 21 is inserted and held. Microphone holding part 2
As shown in FIG. 8, the bottom of the groove 0 communicates with the groove 18 through a through hole 22, so that sound can be recorded effectively. At both lengthwise ends of the sound collecting cuff 4, there are locking flanges 2 as shown in FIG.
3 is formed. As shown in FIG. 2, the sound collecting cuff 4 is brought into contact with the inner surface of the ischemic cuff 5, and the locking collar 23 is inserted into the notch 24 of the outer fabric 13 on the inside.
The sound collecting cuff 4 is attached to the inner surface of the ischemic cuff 5 in an exposed manner. By exposing the sound collecting cuff 4 in this way, the sound collecting cuff 4 can be brought into direct contact with the upper arm 6, and Korotkoff sounds can be recorded directly. There is no impact and reliability is improved. Moreover, the upper arm part 6 is curved part 2
Since the locking collar 23 of the sound collecting cuff 4 is simply inserted into the notch 24 of the outer cloth 13, the position of the sound collecting cuff 4 in the circumferential direction can be changed freely.
In addition, the sound collecting cuff 4 can be deformed to fit along the upper arm 6, making it easy to wear the upper arm 6, and the sound collecting cuff 4 fits well on both people with thick or thin arms. Further, a slit 26 long in the length direction of the sound collecting cuff 4 is formed in the collar part 25 forming the microphone holding part 20 of the sound collecting cuff 4, and an inner and outer cover (later removed) is formed in this slit 26. Hook 2
7 is slidably inserted, and the sound collection cuff 4
It is possible to move slightly in the length direction. Therefore, air is sent to the ischemic cuff 5, and when it is inflated, the sound collecting cuff 4 can be moved so as to come into close contact with the skin of the upper arm 6. In addition, as shown in FIG. 10, on both edges of the sound collecting cuff 4 in the width direction, a slanted collar 28 is extended over the entire edge, and the step is made gentle so that it can be attached to the upper arm 6. Also, when measuring blood pressure, there is no need to feel pain due to differences in level.

4 to 6 show detailed cross sections of the connecting portion between the cuff pipe 27 protruding from the mounting portion 7 and the shield wire 30 for the microphone 21, and the structure thereof will be described below.

A bag-shaped ischemic cuff bag 11 made of rubber is formed with a nozzle 31 for supplying and discharging pressurized air. A cuff pipe 29 is connected to the nozzle 31 via a connecting joint 32, so that pressurized air can be supplied and discharged from the cuff pipe 29.

On the inside of the connection joint 32 (upper arm side),
A printed wiring board 33 is provided. Sound collection cuff 4
The microphone holding portion 20 is inserted into the microphone passage hole 34 of the ischemic cuff bag 11 when the sound collection cuff 4 is attached. and microphone 21
A lead wire 35 and a shield wire 30 for transmitting a sound signal to a blood pressure display section (not shown) are connected to respective connection terminals of a printed wiring board 33. An adjustment circuit (not shown) is formed on the printed wiring board 33 using circuit components, etc., and the microphone 21
The sensitivity of the cuff band 1 can be adjusted to make the cuff band 1 compatible with the blood pressure display section.

The microphone 21, the printed wiring board 33, the nozzle 31 portion of the ischemic cuff bag 11, etc. are protected by covering them with a hard inner cover 36 and an outer cover 37. The configuration will be explained below.

Two boss through holes 38 are transparently provided in the ischemic cuff bag 11, and the circumferences of these boss through holes 38 are heat-sealed (welded) to form the boss through holes 3 as shown in FIG.
8 to prevent air leakage. Boss through hole 3
Outer cloth 12, 13 at a position opposite to 8, curved plate 1
5. A similar through hole is made in the outer sheet 14 provided with the fastener 9, and a through hole passing through the cuff band 1 is formed. A boss 39 integrally formed on the outer cover 37 is inserted into such a through hole, and a screw 40 passed through a small hole in the inner cover 36 is screwed into this boss 39, and the cuff pipe 2 is screwed into the boss 39.
9 and the printed wiring board 33 are sandwiched between the inner and outer covers 36 and 37 as shown in FIG. can definitely be done. At the same time, the sound collecting cuff 4 is also positioned by fitting the hook 27 of the inner cover 36 into the slit 26 provided in the collar 25. In this way, the inner and outer covers 36 and 37 allow each member to be fixed at this location, improving ease of assembly.
Furthermore, the protective cover of the microphone 21 can also be used as a fixture, and the configuration can be simplified. 4 in the diagram
1 is a communication pipe.

In summary, the present invention is a curved cuff band, and a sound collecting cuff is provided on the outer surface of the inner peripheral side of a bag body housing the ischemic cuff so as to overlap with the ischemic cuff. In other words, the cuff band is curved. This allows the subject to easily put on the cuff themselves, while also allowing the sound-collecting cuff placed on the outer surface of the inner periphery of the ischemic cuff to come into direct contact with the skin. Even if wrinkles occur when the cuff is filled with air, sound can be taken without being affected by the wrinkles, blood pressure can be measured accurately, and even when the sound collecting cuff is in direct contact with the skin, The slanted collar formed on the periphery has the advantage of preventing the periphery of the sound collecting cuff from digging into the skin and causing pain.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the cuff band of the blood pressure monitor of the present invention in use, Fig. 2 is a cross-sectional view of the same with a portion of the above left, and Fig. 3 is a developed view of the curved part of the above, showing the inside part. , FIG. 4 is a plan sectional view of the connection joint portion of the above, FIG. 5 is a sectional view taken along the line A-A' in FIG. 4, FIG. 6 is a sectional view taken along the line B-B' in FIG. 4, and FIG. is a perspective view of the same sound collecting cuff as above, FIG. 8 is a cross-sectional view taken along the line C-C′ in FIG. 7, and FIG. 9 is a cross-sectional view taken along the line D-D′ in FIG.
1 is a cuff band, 4 is a sound collecting cuff, 5 is an ischemic cuff, 42
is a bag body.

Claims (1)

[Scope of Claims] 1. A curved cuff band, in which a sound-collecting cuff is provided on the outer surface of the inner circumferential side of a bag housing the ischemic cuff so as to overlap with the ischemic cuff, and a sound-collecting cuff is provided on the outer surface of the inner circumferential side of a bag body that accommodates the ischemic cuff, and a sound-collecting cuff is provided on the outer surface of the bag body that accommodates the ischemic cuff. 1. A cuff band for a blood pressure monitor, characterized in that it is formed with an inclined flange that prevents the cuff from coming into contact with the cuff in a small area. 2. The cuff band for a sphygmomanometer according to claim 1, wherein the sound collecting cuff is supported such that its position can be freely changed in the circumferential direction of the cuff band.