JPH0412964Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is a finger compression type electronic sphygmomanometer (finger sphygmomanometer) that measures blood pressure by compressing the fingers of the hand to prevent blood flow.
regarding the cuff.

(b) Conventional technology Generally, blood pressure monitors measure blood pressure by wrapping a cuff around the upper arm to prevent blood flow from the upper arm. There is a finger sphygmomanometer that you attach to measure your blood pressure. This finger sphygmomanometer wraps a cuff around the finger body, supplies pressurized air to the cuff to ischemize the finger body, and detects the pulse wave using a photoelectric element while exhausting the pressurized air at a very low speed. It is configured to detect the systolic blood pressure and diastolic blood pressure from the waves.

As shown in FIGS. 7 and 8, the cuff of this finger sphygmomanometer has a plurality of trapezoidal flexible bags b arranged in parallel on a bottom plate a, and an air chamber in which the insides communicate with each other. The pressurized bag c was formed by making the pressurizing bag c into a cylindrical shape and inserting it into the outer tube d, and then fixing the pressurized bag c and the outer tube d.

(c) Problems to be solved by the invention In the above-mentioned cuff, the pressure bag c and the outer tube d are fixed with adhesive, but the pressure bag c is made of silicone material and the outer tube d is made of acrylic material. However, it had the disadvantage that it did not have a suitable adhesive and was easily peeled off. That is, if the finger body is pulled out with some pressure, the pressure bag c may come off from the outer cylinder d.
Furthermore, depending on how the pressure is applied during pressurization, the pressure bag c may be displaced from the outer cylinder d due to the pressure, making it impossible to perform accurate measurements.

In addition, since it is fixed with adhesive, it is difficult to position and work efficiently, which is a drawback.

In view of the above, this invention provides a cuff for a finger sphygmomanometer in which the pressurized bag and the outer cylinder are fixed by engaging with each other through unevenness or the like to prevent the occurrence of peeling or the like.

(d) Means and action for solving the problem In this invention, the pressure bag around which the finger body is wrapped and the outer cylinder into which the pressure bag is inserted are formed separately, and the pressure bag and the outer cylinder are formed separately. An engaging part is formed on one side of the outer cylinder, and an engaged part is formed on the other side, and the pressurized bag and the external cylinder are fixed to each other by the engaging part and the engaged part, and the pressurized bag The finger body is compressed by supplying pressurized air to the finger body. In this cuff, the pressure bag is engaged with the outer cylinder by the engagement means, so when the finger is inserted into or taken out of the pressure bag, the pressure bag does not come off from the outer cylinder.

(e) Examples Examples of this invention will be described below based on the drawings.

<Example 1> As shown in FIGS. 1 to 4, 1 is a cuff of a finger sphygmomanometer 2, which is wrapped around a finger body (not shown), for example, the second finger of a hand, and is attached to the second finger. This puts pressure on people.

The cuff 1 is connected to the side of the main body 3 of the blood pressure monitor 2 via a pipe 4 and is housed in a case 5. The cuff 1 is constructed by fitting a pressurized bag 7 into an outer tube 6, and the outer tube 6 is formed into a cylindrical shape from an acrylic material or the like.

The pressurized bag 7 is constructed by connecting a plurality of bags 8, for example nine bags, to a bottom plate 9, which are made of a flexible member such as silicone rubber. The bag body 8 is formed in the longitudinal direction of the finger body, has a narrower width than the circumference of the finger body, and has an air chamber 7a inside. Bag body 8
is formed into a trapezoidal cross-section, with the flat surface portion 8a as the apex, and the side portions 8 extending from both ends of the surface portion 8a.
b are connected downwardly and slightly outwardly. The lower end of this side surface portion 8b is connected to the lower end of the side surface portion 8b of the adjacent bag body 8.
The pressurized bag 7 can be freely deformed from a flat plate shape to a cylindrical shape, and the surface portion 8a is the surface that comes into contact with the finger body, and the lower end of the side surface portion 8b is formed so as to be able to move toward and away from the bottom plate 9.
Each air chamber 7a is configured to allow free circulation. Further, the bag body 8 is continuous in the winding direction of the finger body at the lower end of the side surface portion 8b, and when wrapped in a cylindrical shape, the adjacent side surface portion 8
b are in contact with each other, and the surface portion 8a continues to form a polygonal finger insertion hole.

On the other hand, L-shaped engagement pieces 1 are provided at both front and rear ends of the bottom plate 9.
0 (engaging portion) are connected, and this engaging piece 10 is divided into a plurality of pieces by a cut 10a. Engagement piece 10
engages with the end of the outer cylinder 6, and consists of an end face part 10b extending outward and a circumferential face part 10c connected inwardly from the outer end of the end face part 10b. Both end portions serve as engaged portions so that the pressurizing bag 7 and the outer tube 6 are fixed.

Although not shown, the cuff 1 is equipped with a photoelectric element such as a light emitting diode or a photodiode to detect a pulse wave.
On the other hand, the sphygmomanometer main body 3 is provided with a display section 11 and various switches 12, and is also provided with a pressure pump, a CPU, etc., and is configured to detect and display blood pressure values.

Next, the operation of the cuff 1 will be explained.

First, as shown in FIG. 1, the cuff 1 is assembled by inserting the flat pressurized bag 7 into the outer cylinder 6, and then inserting each engaging piece 1 into the outer cylinder 6.
0 is folded back, the front and rear ends of the outer cylinder 6 are held between the end of the bottom plate 9 and the engaging piece 10 in a U-shape, the pressure bag 7 is fixed to the outer cylinder 6, and the pipe is stored in the case 5. 4 to the main body 3.

Thereafter, when the finger body is inserted into the pressurized bag 7 and the switch 12 is operated, pressurized air is supplied to each air chamber 9, and the surface portion 8a presses the finger body.
At this time, no matter how the pressure is applied, the engaging portion 10 of the pressurized bag 7 is fixed to the outer cylinder 6, and no displacement occurs.

Then, the pulse wave is detected while the pressurized air is exhausted at a slow speed, and the blood pressure value is displayed on the display unit 11. When the finger body is removed after this measurement, the pressurizing bag 7 will not come off from the outer cylinder 6 due to the engaging piece 10 even if the finger body is pressed to some extent.

<Example 2> This example is shown in FIGS. 5 and 6, in which the engaging portion is formed by a rod-shaped projection 13 and the engaged portion is formed by a long hole 14.

This protrusion 13 is formed protrudingly on the lower surface of the bottom plate 9,
They are formed in the same direction as the bag body 8, and three are provided at predetermined intervals. On the other hand, the long hole 14 is the sixth hole in the outer cylinder.
They are drilled in the figure and are formed in the axial direction corresponding to the protrusions 13, and three of them are provided.

Therefore, the pressure bag 7 is shaped into a cylinder and inserted into the outer cylinder 6, and the protrusion 13 is fitted into the elongated hole 14 to fix the pressure bag 7 to the outer cylinder 6.

Other configurations and operations are the same as in the first embodiment.

In addition, as shown in Examples 1 and 2, the engaging portion and the engaged portion are formed of the engaging piece 10, the protrusion 13, and the elongated hole 14, but they may be formed of unevenness or the like.

Further, the finger sphygmomanometer to which the cuff of this invention is applied is not limited to the embodiment, and the pressure bag 7 may also be formed of a single bag body.

(f) Effect of the invention As described above, according to the cuff of the finger blood pressure monitor of this invention, since the pressure bag and the outer cylinder are fixed by the engaging part and the engaged part, the pressure bag Since the pressure bag and the outer cylinder are securely fixed, the pressure bag will not separate or shift from the outer cylinder due to the movement of fingers in and out or the way pressure is applied, ensuring accurate measurements at all times. It can be carried out.

Further, since the engaging portion is only engaged with the engaged portion, positioning of the pressurized bag is facilitated, and assembly can be easily performed.

[Brief explanation of drawings]

1 to 7 show examples of this invention,
1 to 4 show Example 1, FIG. 1 is a perspective view of a flat pressurized bag, FIG. 2 is a perspective view of a cuff,
3 is a longitudinal sectional view of the same, FIG. 4 is a perspective view of a finger sphygmomanometer, FIGS. 5 to 7 show Example 2, and FIG. 5 is a perspective view of a flat pressure bag. Fig. 6 is a perspective view of the outer cylinder, Fig. 7 is a vertical sectional view of the cuff, Figs. 8 and 9 show conventional examples, Fig. 8 is a perspective view of the pressurized bag, Fig. 9
The figure is a perspective view of the cuff. 1...Cuff, 2...Finger blood pressure monitor, 6...Outer tube,
7... Pressure bag, 8... Bag body, 9... Bottom plate, 10...
...Engaging piece, 13...Protrusion, 14...Long hole.

Claims (1)

[Scope of Claim for Utility Model Registration] In a cuff of a finger blood pressure monitor that is wrapped around a finger body and presses the finger body, a pressure bag that is wrapped around the finger body and an outer cylinder into which the pressure bag is inserted are inserted. are formed separately, an engaging part is formed on one side of the pressure bag and the outer cylinder, and an engaged part is formed on the other, and the engaging part and the engaged part together form the pressure bag and the outer cylinder. A cuff for a finger blood pressure monitor, characterized in that the and outer cylinder are fixed to each other.