JPH0346733Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is a cuff for a finger sphygmomanometer that measures blood pressure by compressing arteries in fingers, etc., and is a photoelectric cuff for emitting and receiving light from a photoelectric sensor. The present invention relates to a cuff for a blood pressure monitor in which a sensor cover can be easily and quickly adhesively fixed to a pressure bag.

(B) Prior art In general, the cuff of a finger blood pressure monitor consists of a band-shaped flat rubber sheet called a shell, and a pressure bag attached to the top surface of the flat rubber sheet. , a plurality of substantially trapezoidal pressurizing bulges that communicate with each other in a plane are arranged in parallel,
A structure in which a photoelectric sensor consisting of a receiving/emitting element is disposed at a suitable location of the pressurizing bulge, for example, on the outer surface of the pressurizing bulge, has been used. With such a configuration, the photoelectric sensor is arranged on the outer surface of the pressurizing bulge, and as a result, the entire pressure bag (pressurizing bulge) is made of a light-impermeable material (rubber member). It had the advantage of being easy to manufacture. However, it has been found that the configuration in which the photoelectric sensor is disposed on the outer surface of the pressurizing bulge has the disadvantage that it is difficult to apply uniform finger pressure and that appropriate measurement results cannot be obtained. Therefore, recently, the applicant of the present application installed a photoelectric sensor inside the pressurizing bulge, opened an appropriate place (upper surface part) in the pressurizing bulge corresponding to the photoelectric sensor to be installed,
We proposed a finger cuff in which a light-transmissive sensor cover is attached to this window hole (see Fig. 4).

FIG. 4 is an exploded perspective view showing a fitting structure for fitting a light-transmissive sensor cover to a pressurizing bulge of a pressurizing bag.

The pressurizing bag (pressurizing bulge 61) 6 is made of a non-light-transmissive member (rubber member), and has a window on the upper surface of the pressurizing bulge 61 in which a photoelectric sensor (not shown) is disposed inside. A hole 62 is opened. An adhesive margin 63 is formed on the outer periphery of the window hole 62, and a light-transmissive sensor cover 64 is formed in the shape of a flat plate having an area larger than the window hole 62. A leg portion (photoelectric sensor mounting portion) 66 that fits into the window hole 62 is provided in a protruding manner. When bonding the sensor cover 64 to the pressurizing bulge 61,
An appropriate amount of adhesive is applied to the adhesive margin portion 63, and the leg portion 66 of the sensor cover 64 is fitted into the window hole 62.
In this state, the outer peripheral inner surface of the flat plate portion 66 of the sensor cover 64 comes into contact with the adhesive margin portion (adhesive surface) 63 and is bonded. Thereafter, the pressurized bag 6 is adhered to the upper surface of the flat rubber base sheet 67 to form a cuff. When in use, the cuff (a flat sheet and a pressure bag glued together) is bent, the pressure bulges located at both ends are joined together to hold the cuff in a cylindrical shape, and the cuff is placed in a cylindrical cuff case. Insert.

When measuring blood pressure with a blood pressure meter, compressed air is sent from a pressurizing pump in the main body of the meter to the pressurizing bulge via the tube, compressing the finger inserted into the cylindrical cuff and ischemizing the finger artery. Here, light is emitted from the light-emitting element of the photoelectric sensor onto the finger, that is, through the light-transmissive sensor cover, and the reflected light is received by the light-receiving element, and a pulse wave signal (change in arterial volume) is detected. total)
is transmitted to the electronic circuit section of the meter body through the lead wire, and the electronic circuit section applies an algorithm to the changing waveform to determine the systolic and diastolic blood pressure values.

(c) Problems to be solved by the invention In the cuff of the blood pressure monitor mentioned above, the adhesive margin on the outer periphery of the window hole of the pressurizing bulge and the inner and outer periphery of the sensor cover are connected via adhesive. It is configured to be glued.
For this reason, if the area of the adhesive margin is small and the amount of adhesive applied is small, there will be a gap and there is a risk of air leakage.On the other hand, if the amount of adhesive is increased, the excess adhesive will leak between the joints. There are disadvantages such as the disadvantage that it oozes to the outside, the adhesion work requires a skilled technique, and the adhesion process takes a long time.

The object of this invention is to provide a cuff of a blood pressure monitor in which a sensor cover can be properly and firmly bonded to a pressurizing bulge with a simple operation.

(c) Means and action for solving the problem In order to achieve this objective, the blood pressure monitor cuff of this invention has the following configuration.

The cuff of the blood pressure monitor is a cuff of a blood pressure monitor in which a pressure bag is attached to the top surface of a flat sheet, and a photoelectric sensor for detecting pulse waves is installed inside the pressure bag. A window hole for fitting the photoelectric sensor cover is opened at a proper location, a protrusion is provided on the outer periphery of the window hole, and an adhesive protrusion is provided on the photoelectric sensor cover protrudingly opposite to the protrusion. An adhesive pouring groove is formed between the protrusion and the window hole side protrusion.

In a blood pressure monitor cuff having such a configuration, a protrusion is formed on the outer periphery of the window hole of the pressurizing bulge, and an adhesive protrusion is provided protruding from the sensor cover that fits into the window hole. . Therefore, when the sensor cover is properly fitted into the window hole, a groove (glue pouring groove) is formed between the opposing protrusions and the adhesive protrusions. That is, when the sensor cover is fitted into the window hole, the outer surface of the sensor cover is fitted flush with the upper surface (outer surface) of the pressurizing bulge. Therefore, a groove portion (adhesive pouring groove portion) whose bottom surface is the inner surface of the pressurizing bulge and the inner surface of the sensor cover, and which is surrounded by the protrusions and the adhesive protrusions.
is configured. In this fitted state, the pressure bulge can be opened by simply pouring adhesive into the groove from the back side of the opening of the pressure bulge (the side where the pressure bag is glued to the flat sheet). and the sensor cover are firmly adhered. Therefore, the amount of adhesive poured into the groove can be increased, and not only can strong adhesion be ensured, but there is no risk of the adhesive leaking out through the groove, and the appearance of the adhesive is good.

(e) Embodiment FIG. 3 is a perspective view showing a specific embodiment of the cuff of the blood pressure monitor according to this invention.

As is well known, the cuff of the finger blood pressure monitor includes a flat sheet (base sheet) 1 and a pressure bag 2 attached to the top of the flat sheet 1 and provided with a plurality of pressurizing bulges 21. It is composed of.

The flat sheet 1 is formed in the shape of a rectangular thin plate made of opaque (non-light transmitting) rubber, and has a support wall (reinforced A plurality of walls) are erected, a printed circuit board is provided, and a photoelectric sensor 33 (see FIG. 2) consisting of a receiving/emitting element is connected to this printed circuit board.

The pressure bag 2 is made of an opaque (non-light transmitting) rubber material, and is formed into a flexible rectangular sheet having approximately the same area in plan view as the flat sheet 1, and expands outward (upward) within the plane. A plurality of pressurizing bulges 21 are provided in a protruding manner. The inner surface of the outer periphery of the pressurized bag 2 is adhered to the outer periphery upper surface of the flat sheet 1 to form a cuff. In the embodiment, photoelectric sensors 33 (see FIG. 2) are installed inside three pressurizing bulges 21 located in the center among a plurality of pressurizing bulges 21 arranged in parallel. It is set. Therefore, the photoelectric sensor includes a flat sheet 1 and a pressure bag (pressure bulge 21), both of which are non-light transparent members.
It is set so that it is surrounded by 2.

The feature of this invention is that a window hole is opened in the upper surface of the pressurizing bulge 21, that is, a portion corresponding to the receiving/emitting surface of the photoelectric sensor 33 installed inside, and the sensor cover 3 is fitted into the window hole. The point is that an adhesive pouring groove 4 is formed between the two.

As shown in FIG. 1, a window hole 22 is formed on the upper surface of the pressurizing bulge 21, and the sensor cover 3 has a size that fits properly into the window hole 22, that is, approximately the opening area of the window hole 22. It is formed into a flat plate shape having the same area, and in the fitted state, the outer surface (surface) of the flat plate part 31 of the sensor cover 3 and the pressurizing bulge part 2, which will be described later.
It is set so that the outer surface (surface) 21a of No. 1 is flush with the outer surface (front surface) 21a of No. 1. A protrusion 23 that protrudes inward (in the opposite direction to the outer surface) is provided around the outer circumference of the window hole 22 of the pressurizing bulge 21. (See Figure 2).

The sensor cover 3 is formed into a flat plate shape from a light-transmitting member (silicon material), and this flat plate portion 3
The photoelectric sensor 33 is installed in the plane of the flat plate part 31, and an adhesive protrusion 32 having a rectangular planar shape is formed on the inner surface of the flat plate part 31 (the side where the window hole 22 is fitted). Then, this adhesive protrusion 32 is connected to the window hole 2.
2, and in the fitted state, the protrusion 23
and the adhesive protrusion 32 are set so as to face each other at a constant interval, and as shown in FIG. 2, the groove 4 for pouring the adhesive is set between these opposing sides.

In the cuff of the blood pressure monitor having such a configuration, when the sensor cover 3 is bonded to the pressurizing bulge 21, the sensor cover 3 is fitted into the window hole 22 of the pressurizing bulge 21. At this time, sensor cover 3
The adhesive protrusion 32 fits into the window hole 22, and the outer surface of the flat plate portion 31 and the outer surface of the pressurizing bulge 21 are flush with each other. Here, the adhesive protrusion 32 and the protrusion 23 of the window hole 22 face each other, and the adhesive pouring groove 4 is formed between these opposing faces. In this state, the pressure bag 2 is inverted, that is, the pressure bulge 2
The opening side of the back surface of 1 is turned over (positioned upward), and the adhesive 5 is poured into this adhesive pouring groove 4 (see FIG. 2). In this manner, the pressure bag (pressure bulge 21) 2 and the sensor cover 3 are integrally and firmly bonded by an extremely simple adhesive pouring operation. After this, the pressure bag 2 is turned over again,
It is adhered to a flat sheet (base sheet) 1 via an adhesive to form a cuff (see FIG. 3). Therefore, the adhesive part between the pressure bag (pressurization bulge 21) 2 and the sensor cover 3 cannot be seen at all, and a large amount of adhesive can be used in the adhesive pouring groove 4, making it strong. In addition, there is no risk of the adhesive leaking out from the groove 4, and a beautiful appearance can be ensured.

(f) Effects of the invention As described above, in this invention, a window hole for fitting the sensor cover is opened in the pressurizing bulge, a protrusion is provided on the outer periphery of this window hole, and the sensor cover is Since an adhesive protrusion is provided protrudingly in the plane opposite to the adhesive protrusion, and an adhesive pouring groove is formed between the opposing protrusion and adhesive protrusion, the adhesive is not adhered to the adhesive pouring groove. The sensor cover can be integrally bonded to the pressurizing bulge by an extremely simple operation of pouring the agent.

Furthermore, this adhesive pouring groove is not only invisible from the outside of the pressure bag, but also allows a large amount of adhesive to be injected into the groove with a certain depth without requiring any skill, making it strong and strong. Can perform gluing. In addition, since the adhesive pouring groove has a certain depth,
Even when pouring a large amount of adhesive, the disadvantages of the conventional method, such as excess adhesive seeping out, are eliminated, and a beautiful adhesive appearance can be ensured, achieving the excellent effects of the invention. have

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing the pressurizing bag and sensor cover of the cuff of the embodiment blood pressure monitor separated, and FIG. 2 is an enlarged cross-sectional view of the main parts of the cuff of the embodiment blood pressure monitor. 3 is a perspective view showing a cuff of an embodiment of the blood pressure monitor, and FIG. 4 is an exploded perspective view showing a state where the pressurizing bag and sensor cover of the cuff of a conventional blood pressure monitor are separated. 1: flat sheet, 2: pressure bag, 3: sensor cover, 4: adhesive pouring groove, 5: adhesive,
21: Pressure bulge, 23: Protrusion, 32: Adhesion protrusion.

Claims (1)

[Scope of Claim for Utility Model Registration] A cuff for a blood pressure monitor in which a pressure bag is attached to the top surface of a flat sheet, and a photoelectric sensor for pulse wave detection is provided inside the pressure bag, the top surface of the pressure bag A window hole for fitting the photoelectric sensor cover is opened at a proper location, a protrusion is provided on the outer periphery of the window hole, and an adhesive protrusion is provided on the photoelectric sensor cover protrudingly opposite to the protrusion. A cuff for a blood pressure monitor, characterized in that an adhesive pouring groove is formed between the protrusion and the window hole side protrusion.