JPS61238229A - Cuff band of hemomanometer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 【Technical field】

The present invention relates to a cuff band for a blood pressure monitor that is used by being wrapped around the arm of a person being examined.

[Background technology 1] A curved plate 1' formed into a curved shape made of an elastic material is built into the cuff band, and the elasticity of the curved plate 1' allows the cuff band to be fitted onto the arm and temporarily secured. Conventionally, devices have been used that allow a user to easily attach a cuff band to the arm by one person. However, in this conventional cuff band, the shape of the curved plate 1'' does not fit all people, such as those with thick arms and those with thin arms. As shown in Fig. 10, the end of the curved plate 1' has a disadvantage in that it digs into the arm A, giving a painful sensation to the arm A.The reason for this is that the curved plate 1' has a width B over the entire length as shown in Fig. 10. ' and wall thickness t' are constant, and the rigidity EI is constant in each cross section of the curved plate 1'.When the curved plate 1' is expanded, a bending moment is generated in the curved plate 1'. However, the distribution of the bending moment is O at both ends of the curved plate 1'' in the bending direction, and is maximum at the center. The curvature of the displacement curve from the material axis when subjected to bending moment) M is determined by = M/E I (E I: stiffness), so when the curved plate 1' receives external force, The bending deformation is very light at the center of the curved plate 1', and almost no bending deformation occurs at both ends.Therefore, when the curved plate 1' is expanded, the curved plate 1' opens wide at the center as shown in Figure 11. It deforms in such a way that it does not spread out neatly into a circular shape, but remains largely curved at both ends, and in the case of people with thick arms, the ends of the curved plate 1' dig into their arms. [Purpose of the Invention] The present invention was made in view of the technical background of slanting, and its purpose is to spread the curved plate uniformly when force is applied, so that it can be used even on thin arms. The goal is to make the cuff band fit smoothly even on thick arms.

[Disclosure of the invention]

The cuff band of the blood pressure monitor of the present invention has a built-in curved plate 1 formed in a curved shape by a flexible member and can be wrapped around the arm. It is characterized by being formed so that the rigidity gradually increases from both ends in the bending direction toward the center, and the distribution of the bending moment that occurs when force is applied and the distribution of the rigidity of the curved plate 1. Since these are approximately proportional to each other, even when the curved plate 1 is expanded, the deformation is approximately uniform over the entire length in the curved direction. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The curved plate 1 is made of a flexible synthetic resin material such as polypropylene, and has a curved shape like a cylinder cut along the generatrix. This curved plate 1 is formed so that the wall thickness gradually increases from both ends in the curve direction toward the center, and the stiffness gradually increases.The wall thickness and stiffness are maximum at the center. ing. That is, as shown in FIG. 1, the thickness of each part satisfies tl>t2>h. Therefore, the rigidity (or moment of inertia) is maximum at the center where the largest bending moment occurs when external force is applied, and the curvature of the entire curved plate 1 can be kept almost constant, as shown in Figure 2. The curvature along the curved direction of the curved plate 1 will be It becomes almost uniform and spreads out in a beautiful arc shape in each case. The above-mentioned curved plate 1 is built into a cuff band A as shown in FIG. 4 to be wrapped around the arm. That is, as shown in FIG. 5, the outer circumferential surface of the curved plate 1 is covered with an outer cloth 2, and the ischemic cuff 3, which is inflated by pumping air, is arranged along the inner circumferential surface of the curved plate 1. The inner peripheral surface of the ischemic cuff 3 is covered with an inner cloth 4, and a Korotkoff sound sensor 6 is housed in a sensor pocket 5 provided between the ischemic cuff 3 and the inner cloth 4. Furthermore, an air pipe 8 connected to a pump nozzle 7 provided on the ischemic cuff 3 and a Korotkoff sound sensor 6
At the end of the sensor cord 9 connected to the blood pressure monitor body 10
A plug 11 is provided for connection to the main body. However,
When wrapping the cuff band A around the arm, first use the elasticity of the curved plate 1 to temporarily secure the cuff band around the arm. The cuff band A is fastened to the arm by the 77 snare 12.12. The one shown in FIG. 6 is another example of the present invention, in which a plurality of seven coupling hooks 13 are integrally formed on the outer peripheral surface of the curved plate 1, and these seven coupling hooks 13 are inserted through the seven hooks of the outer cloth 2. The connecting hole 7 protrudes from the outer surface of the cuff band A through the hole 14.
By engaging the claws 13 with the blood pressure monitor main body 10, the blood pressure monitor main body 10 can be attached to the cuff band A as shown in FIG. In addition, in order to prevent the outer fabric 2 from stretching due to the pressure of F when air is supplied to the ischemic cuff 3 and the hook insertion hole 14 being pulled by the hook 13 and being torn, a reinforcing fabric 15 is provided on the inner surface of the outer fabric 2. It is laminated. What is shown in FIG. 8 is still another example of the present invention, in which the curved plate 1
The width in the direction orthogonal to the curved direction gradually increases from both ends in the curved direction toward the center,
As shown in FIG. 8(b), B1<82. In this embodiment, the rigidity (secondary moment of area) is maximized at the center by changing the width. 9 is still another example of the present invention, in which a slit groove 16 is further cut in the center of the width direction of the curved plate 1 shown in FIG. It is made wider at the end side, and B l < B-2.

【Effect of the invention】

As described above, the flexible curved plate built into the cuff band is formed so that the rigidity gradually increases from both ends in the bending direction toward the center. It can be used to temporarily secure the cuff band around the arm, making it easier to attach the cuff band to the arm, and also reducing the ratio of the rigidity of the curved plate to the bending moment that occurs when force is applied. It can be made almost uniform over the entire length of the curved plate in the curving direction, and the cuff band with the built-in curved plate can be wrapped around a thin arm, or when wrapped around a thick arm and the curved plate is spread wide. The curved plate has an almost uniform curvature over its entire length in the curved direction, and the cuff band fits smoothly and feels comfortable when worn on both thick and thin arms. ), there is an advantage of ν1.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a curved plate according to an embodiment of the present invention, FIG. 2 is a perspective view of the same curved plate as described above when the diameter is small, and FIG.
The figure is a perspective view showing the state of the above curved plate when the diameter is large, Figure 4 is a perspective view of the cuff band incorporating the above curved plate, Figure 5 is a sectional view of the same cuff band, and Figure 6 is A perspective view showing another example of the present invention, FIG. 7 is a cross-sectional view of the same as above, FIGS.
Figures (a) and (b) are a perspective view and a developed view of a curved plate according to another example of the present invention, and Fig. 10 is a perspective view of a conventional curved plate,
FIG. 11 is a perspective view of the above curved plate when it is unfolded, and FIG. 12 is an explanatory view when the above curved plate is wrapped around the arm. 1 is the curved plate. Agent Patent attorney Ishi 1) Chief 7th figure 4th figure 9a5 figure 7th figure 1110 figure 1111 figure l112 field ε Question: figure 9

Claims (3)

[Claims] (1) In the cuff band of a blood pressure monitor which has a built-in curved plate formed into a curved shape by a flexible member and can be worn around the arm, the curved plate is placed in the center part from both ends in the curve direction. A cuff band for a blood pressure monitor, characterized in that the cuff band is formed so that its rigidity gradually increases towards the end. (2) The cuff band for a blood pressure monitor according to claim 1, wherein the thickness of the curved plate is gradually increased from both ends in the curved direction toward the center. (3) The blood pressure monitor according to claim 1, wherein the width of the curved plate in the direction orthogonal to the curved direction is gradually widened from both ends in the curved direction toward the center. cuff band.