JPS629850Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cuff band for a blood pressure monitor, and more specifically, to a technology for accurately measuring blood pressure by allowing a sound collecting cuff to fit along arms of different thicknesses.

In the case of the cuff band of a conventional blood pressure monitor, as shown in Japanese Patent Application Laid-Open No. 55-50339 shown in FIG. It was delivered to. However, with this configuration, when the cuff band main body 1' is wrapped around the upper arm, it may not fit properly around the upper arm due to wrinkles in the cuff band main body 1 as a storage bag, making it impossible to accurately measure blood pressure. There was a problem.

The present invention was made in consideration of such problems, and its purpose is to provide a blood pressure monitor cuff that will fit the arm of anyone regardless of arm thickness, allowing accurate collection of Korotkoff sounds, and yet will not come off the cuff itself.

That is, the present invention provides a locking collar 23 having hooks 43 protruding in the width direction of the sound collecting cuff 4 at both ends in the cuff length direction of the sound collecting cuff 4 disposed on the inner peripheral surface side of the cuff band main body 1. , hooks 43, 4 on the cuff band body 1
This invention relates to a cuff band of a blood pressure monitor, which has a cutout 24 having a width smaller than the width across the width of No. 3, and a locking collar 23 is movably inserted into the cutout 24, and is constructed in this way. Through this, we were able to achieve the above objectives.

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

Reference numeral 1 denotes a cuff band main body, which is composed of an attachment part 7 that can be attached to the upper arm of a human body, and a flexible sheet-like binding part 8 that is formed in series with 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 other fastener 10 of the planar fastener is provided on the inner surface of the tip of the binding part 8. By attaching it to the upper arm, wrapping the cuff band part 8 over it, and tying it with the fasteners 9 and 10, the cuff band main body 1
can be wrapped around the upper arm 6.

As shown in FIG. 2, the mounting portion 7 is curved in a free state where no external force is applied, and between both ends of the curved portion 2 is an opening 3 into which the upper arm can be press-fitted or easily inserted for thin people. , and the upper arm is inserted through the opening 3 so that the person to be measured can easily wear the mounting part 7 by himself/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.

As shown in FIG. 2, an ischemic cuff bag 11 formed in a bag shape is connected to a binding band part 8 by two pieces of outer cloth 1.
2 and 13 to form an ischemic cuff 5. A curved plate 15 is disposed on the outside of the inner outer cloth 12, an outer sheet 14 provided with a fastener 9 is disposed further outside the curved plate 15, and the outer sheet 14 is attached to the outermost outer cloth 12 around the outer sheet 12. By heat-sealing the parts, a curved plate 15 is incorporated, and the ischemic cuff 5 is curved.

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 can completely achieve blood ischemia, but in a person with a thin upper arm, the ischemic cuff 5 may extend more than one turn. Therefore, the cuff band body 1
The curved plate 15 temporarily attached to the upper arm is shorter than the ischemic cuff 5, and has a curved shape suitable for people with thin arms. For example, the inner diameter of this curve is
Approximately 60 to 70 mm in diameter is considered appropriate.

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 15
The outer cloth 12 interposed between the two 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 can be worn by people with different arm sizes. Even when pressurizing, 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 fricative sounds can be suppressed, there is no need to disturb the reception of Korotkoff sounds during blood pressure measurement. Since the curved plate 15 is located on the outside of the ischemic cuff 5, pressure transmission of the ischemic cuff 5 to the upper arm 6 is improved.

As shown in FIG. 2, one end of the curved plate 15 is bent outward to allow easy insertion and removal of the upper arm into the curved portion 2. 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 body 1 is attached to the upper arm, 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 cuff band body 1
The length of the outer sheet 17 of the ischemic cuff bag 11 is longer than the length of the inner sheet 16 of the ischemic cuff bag 11 in the longitudinal direction, and the ischemic cuff bag 11 itself is also curved. By curving the ischemic cuff bag 11 in an arc shape in this manner, 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, and wrinkles are generated on the inner surface of the ischemic cuff bag 11. Therefore, the outer fabric 13 inside the ischemic cuff bag 11 does not wrinkle. By the way, in the past, when filled with pressurized air, if the ischemic cuff bag, which was about to be stretched into a flat shape, was forced to wrap around the upper arm by applying an external force, wrinkles were created on the inner surface of the ischemic cuff bag. 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), and as shown in Fig. 7, a concave groove 18 is formed on the inner surface and the entire body is curved.
A sound recording membrane 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. As shown in FIG. 6, the microphone holder 20 has its bottom communicating with the groove 18 through a through hole 22, so that sound can be picked up effectively. As shown in FIG. 5, locking flanges 23 having hooks 43, 43 projecting in the width direction of the sound collecting cuff 4 are formed at both lengthwise ends of the sound collecting cuff 4. As shown in FIG.
3 and 43, and insert the locking collar 23 into the notch 24 of the inner outer cloth 13 to attach the sound collecting cuff 4 to the ischemic cuff 5.
It is installed exposed on the inner surface of the This notch 2
The width of 4 is slightly smaller than the outer shape of the hook 43 of the locking collar 23 of the sound collecting cuff 4, and when inserted into the notch 24, the hook 43 is diagonally stretched due to the stretch of the outer cloth 13, etc.
It is press-fitted by using the guide of the corner part, etc., but once it is inserted, it is structured so that it cannot be easily removed.

In this way, the sound collecting cuff 4 is not completely fixed to the cuff band body 1, but is fixed so that it can move freely in the length direction of the cuff band body 1, so that it can be used freely by people with different arm thicknesses. The sound collecting cuff is fitted and accurate Korotkoff sounds can be collected. or,
Even if the curved part 2 is widened, the fixed part of the sound collecting cuff 4 will not come off and the fixed position relative to the cuff band body 1 will be stable, so there will be no obstruction to blood ischemia. . By exposing the sound collecting cuff 4, the sound collecting cuff 4 can be brought into direct contact with the upper arm, and Korotkoff sounds can be recorded directly, and there is no effect of wrinkles on the outer cloth 13. , reliability is improved. A long slit 26 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 a hook 27 of the inner and outer covers (described later) is formed in this slit 26. is slidably inserted, and the sound collection cuff 4 can be moved slightly in the length direction. Therefore, air is sent to the ischemic cuff 5, and when it is inflated, the sound collecting cuff 4 is moved to the upper arm 6.
It can be moved so that it comes into close contact with the skin of the patient. or,
As shown in FIG. 7, on both sides of the widthwise edges of the sound collecting cuff 4, a slanted collar 28 is extended over the entire edge, and the step is made gentle so that it can be worn on the upper arm and for blood pressure measurement. This is done so that you don't have to feel pain at times.

FIG. 4 shows the cuff pipe 2 protruding from the mounting part 7.
9 and the shielded wire 30 for the microphone 21 are shown in detail, and the structure thereof will be explained 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 using circuit components, etc., so that the sensitivity of the microphone 21 can be adjusted and the cuff band body 1 can be made compatible with the blood pressure display section. There is.

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. In the figure, 40 is a screw.

In summary, in the present invention, the sound collecting cuff is arranged on the inner circumferential side of the cuff band body, so the sound collecting cuff can be brought into direct contact with the upper arm without passing through the cuff band body. Korotkoff sounds can be picked up well without being affected by A notch with a width smaller than the width of the collar is provided, and the locking collar is movably inserted into the notch, so the sound collecting cuff is supported by the cuff band body so that it can move freely in the length direction of the cuff. In this way, the sound collection cuff is not tied to the cuff band body, so it fits well on the upper arm of any thickness, and the Korotkoff sounds can be collected even better. However, it has the advantage that the sound collection cuff does not come off unexpectedly.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the conventional example, Fig. 2 is a partially cutaway plan view of the present invention, Fig. 3 is a front view of the same as seen from the inner peripheral surface side in the extended state, and Fig. 4 is the same. 3 is a cross-sectional view taken along the line A-A in Figure 3, Figure 5 is a perspective view of the same sound collecting cuff as above, Figure 6 is a cross-sectional view taken along the line C-C in Figure 5, and Figure 7 is a cross-sectional view taken along the line D-D in Figure 5. 1 is a cross-sectional view, 1 is a cuff band main body, 4 is a sound collecting cuff, 23 is a locking collar, 24 is a notch, and 43 is a hook.

Claims (1)

[Scope of utility model registration request] A locking collar having a hook protruding in the width direction of the sound collecting cuff is provided at both ends in the cuff length direction of the sound collecting cuff disposed on the inner peripheral surface side of the cuff band main body, A cuff band for a blood pressure monitor, which has a notch with a width smaller than that of a sphygmomanometer, and a locking collar is movably inserted into the notch.