JPS62254730A - Mount structure of blood pressure measuring element to 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 [Field of Industrial Application] The present invention relates to an improvement in the mounting structure of a measuring head of a blood pressure monitor used in a hospital or home for diagnosing health conditions. be.

[Conventional technology]

An electric sphygmomanometer equipped with a hollow measuring tip made of an elastic material applies pressure to the measuring tip to deform it, allowing pressurized air to connect to the built-in electrical sphygmomanometer. Pressure is applied to the pressure sensor and the pressure is displayed digitally or analogously on the pressure display.

However, conventionally, when attaching a measuring head to an electric blood pressure monitor, the opening of the measuring head was forced wide and the measuring head was forcefully fitted into the air flow tube of the electric blood pressure monitor, which required force for the installation process. However, the installation condition is also likely to be incomplete. Therefore, when replacing a gauge head whose diameter corresponds to the thickness of the blood vessel to be measured, it becomes troublesome to replace it, and as the gauge head is repeatedly attached and detached, the elasticity of the opening of the gauge head deteriorates. As a result, there have been problems in that the probe may be accidentally removed or dropped, or air may escape to the outside, making it impossible to display a normal pressure.

[Problem that the invention seeks to solve]

The present invention has been made in view of the above points, and an object thereof is to provide a structure for attaching a blood pressure measuring probe to a blood pressure monitor, which allows easy replacement of the measuring probe.

[Means for solving problems]

The gist of the present invention is to provide an opening which is made of a flexible elastic material capable of restoring its original shape and which is airtightly connected to the pressure receiving part of a pressure meter that displays air pressure in a mercury column or as a pointer, indicating zero pressure at normal pressure. A hollow measuring element 2 having a size corresponding to the diameter of the blood vessel to be measured having the portion 1 is formed, and an air flow cylinder 11 that serves as a flow path for pressurized air is provided protruding from the blood pressure monitor. At the same time, this air circulation cylinder 11
A fitting part 13 is formed on the outer periphery of the connecting body 17, and a connecting collar 16 is integrally extended from the periphery of the end of the connecting tube 15 having the fitted part 14 to form a flexible connecting body 17 capable of restoring its original shape. Then, the connecting collar 16 of the connecting body 17 is attached to the periphery of the opening l of the measuring head 2 from the outside, and the connecting cylinder 15 of the connecting body 17 is fitted onto the air circulation cylinder 11 of the blood pressure monitor A, This relates to a structure for attaching a blood pressure measuring probe to a blood pressure monitor, in which a fitting part 13 is detachably fitted to a fitting part 14.

[For production]

The structure for attaching the blood pressure measuring probe to the blood pressure monitor of the present invention configured as described above facilitates attachment of the blood pressure measuring probe to the blood pressure monitor by providing a connection body exclusively for the measuring probe.

〔Example〕

Hereinafter, the present invention will be explained with reference to illustrated embodiments.

FIG. 1 is a cross-sectional view of the blood pressure measuring probe 2 of the present invention, showing an example in which a soft rubber membrane is used as the elastic material capable of restoring its original shape. It has a hollow spherical shape that is slightly larger than a radial artery (for example, about 10 mm in diameter in the case of a radial artery), and has an opening l at one end that is airtightly connected to a pressure receiving part of a pressure meter P at normal pressure.

FIG. 2 is a diagram in which the measuring head 2 of the present invention is installed in a Tycos type blood pressure monitor A, in which the pointer 3 indicates zero at normal pressure, and the pointer 3 indicates zero.
The figure shows the deformation of the measuring element 2 and the change of the pointer 3 when the blood pressure monitor is pressed from the side wall of the blood vessel to be measured.

A in FIG. 4 is an overall view of the electrical blood pressure monitor, which includes an electrical pressure sensor 6, an electronic amount changing section 7, and a pressure display section 8. The measuring element 2 is detachably connected to the electric blood pressure monitor A.

FIG. 4 shows the mounting structure of the measuring head 2 and the electric blood pressure monitor A.

Reference numeral 17 denotes a connecting body, in which a connecting collar 16 is integrally extended from the peripheral edge of the end portion of the connecting tube 15. A threaded portion is formed on the inner periphery of the connecting cylinder 15 to form a fitted portion 14 . The connecting body 17 is integrated with the measuring element 2 by bonding the connecting collar 16 of the connecting body 17 to the periphery of the opening l of the measuring element 2 with an adhesive or the like.

On the other hand, an air flow cylinder 11 is provided protruding from the electric blood pressure monitor A, and a fitting portion 13 is formed by threading a thread on the outer periphery of the air flow cylinder 11. Therefore, when attaching the measuring head 2 to the electric blood pressure monitor A, the connecting cylinder 15 of the connecting body 17
is screwed onto the air flow cylinder 11 of the electric blood pressure monitor A.

FIG. 5 shows another embodiment of the mounting structure for the measuring head 2 and the electric blood pressure monitor A. The air flow cylinder 11 and the connection cylinder 15 are formed into a trumpet shape. A dowel is formed on the outer circumferential surface of the air circulation cylinder it as a fitting part 13, and an L-shaped cut from the edge of the connecting cylinder 15 is formed as a fitting part 14.

Therefore, when attaching the measuring element 2 to the electric blood pressure monitor A, the fitting part 13 is aligned with the vertical cut part 18 of the fitting part 14, and the connecting cylinder 15 is fitted into the air circulation cylinder 11, and then the connection is made. The body 17 may be rotated to fit the fitting part 13 into the cross-cutting part 19.

Therefore, by applying pressure to the probe 2 and deforming it, pressurized air passes through the opening 1 and the gas flow port 12 and pressurizes the electrical pressure sensor 6, and the pressure is displayed on the pressure display section 8 in digital or analog form. The Rukoto. This method is not particularly limited as long as it is a known method.

Reference numeral 4 denotes a blood flow sound detector (microphone) attached to the tip of the measuring tip 2, which detects when the blood vessel compressed by the measuring tip 2 is occluded and then gradually weakens the pressure when the pressure is at its maximum. It detects blood flow sounds during the lowest blood pressure and outputs electrical signals while this blood flow sound is occurring.

Note that the detector 4 may be installed at the same location as the pressure sensor 6 or near it, and the output thereof is sensed by an output line and displayed on the blood flow sound display section 5 by sound or flashing light.

Figure 7 shows an electric blood pressure monitor A with a measuring head 2 attached to a bracelet 21.
The figure shows a front view of the unit installed.

Elastic members 20 are arranged on both the left and right sides of the measuring element 2 to assist the restoring force of the measuring element 2, and the elastic members 20 are attached to the inner circumferential surface of the bracelet 21.

Figure 7 (al) shows the state in which the probe 2 is not loaded, and Figure 7 (b) shows the state in which the blood vessel compressed by the probe 2 is occluded, and at this time the elastic 20 is compressed and deformed together. FIG. 7(C) shows a state in which the pressure is gradually weakened, and at this time, the restoring force of the elastic material 20 allows the measuring tip 2 to restore smoothly.

Note that the shape and material of the elastic member 20 are not particularly limited as long as they can achieve the above effects, and the measuring element 2 is connected to the connecting body 1.
It is also possible to fit it into the air circulation cylinder 11 without using 7.

Figure 8 shows a check valve 23 (with a small hole 22) inside the air flow cylinder ll.
A cross-sectional view is shown in which a sensor (to prevent backflow of the probe 2) is arranged.
Air passes through the small hole 22 and gradually returns to the inside of the probe 2. Therefore, the displayed value of the blood pressure meter changes gradually, making it possible to accurately read the systolic and diastolic blood pressures. 24 in the figure is a valve seat, and check valve 2
The valve seat 24 and the check valve 23 are integrally formed with a magnet, and are magnetically attached in the closed state.

FIG. 8(a) shows a state in which the probe 2 is under no load, and FIG. This shows a state in which air is flowing through the blood pressure monitor A. Figure 8 tc+ shows a state in which the pressure is gradually weakened, and at this time the check valve 2
3 becomes a closed state, and air gradually returns into the probe 2 through the small hole 22.

Reference numeral 12 in FIGS. 4 and 5 indicates the gas flow port of the air flow tube 11, and shows an example in which the air flow tube 11 is sandwiched between the small holes 22 without providing the check valve 23. [Effects of the Present Invention] As is clear from the above description, the present invention provides an air flow tube that serves as a flow path for pressurized air protruding from an electric blood pressure monitor, and a fitting portion on the outer periphery of the air flow tube. A connecting body is formed by integrally extending a connecting flange from the periphery of the end of the connecting tube having the fitted portion, and the connecting flange of this connecting body is inserted from the outside around the opening of the gauge head. The connecting cylinder of the connecting body is externally fitted to the air circulation cylinder of the electric blood pressure monitor, and the fitting part is removably fitted to the part to be fitted, so it is not necessary to force the measuring head as in the conventional method. The effect is that the attachment and detachment of the gauge head can be carried out more smoothly than when screwing in the gauge head, and the elasticity of the gauge head does not deteriorate.

In addition, the connecting body is flexible enough to restore its original shape, so when it is fitted onto the air circulation tube, it will be in close contact with each other, thus preventing air from accidentally leaking from the connecting part and ensuring accurate blood pressure measurements at all times. have the effect of being able to

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the measuring head of the present invention, FIGS. 2 and 3 are front views showing an explanation of how to use the Tycos-type blood pressure measuring device of the embodiment equipped with the measuring head, and FIG. 4 is an electric pressure sensor. , a diagram showing a state in which a blood pressure monitor with a built-in electronic quantity changing unit and a pressure display unit and a measuring head are removed, FIG. 5 is a diagram showing another embodiment of the same as above, and FIG. 6 is a perspective view of the measuring head same as above. Figure, Figure 7(a)
(bl (cl) is an explanatory diagram of the operation when attached to a bracelet, and FIG. 7 (al (b) (c) is an explanatory diagram of the operation of the valve body.

Claims (1)

[Claims] (1) An opening that is made of a flexible elastic material that can restore its original shape and that is airtightly connected to the pressure receiving part of a pressure meter of a blood pressure monitor that displays air pressure in mercury or a pointer, indicating zero pressure at normal pressure. A hollow measuring element with a size corresponding to the diameter of the blood vessel to be measured is formed, and an air flow cylinder that serves as a flow path for pressurized air is provided protruding from the blood pressure monitor. A fitting part is formed on the outer periphery of the air circulation cylinder, and a connecting collar is integrally extended from the peripheral edge of the end of the connecting cylinder having the fitting part to form a flexible connecting body capable of restoring its original shape. , Attach the connecting flange of this connecting body from the outside around the opening of the measuring head, fit the connecting cylinder of the connecting body to the air circulation cylinder of the blood pressure monitor, and attach the fitting part to the fitting part. A structure for attaching a blood pressure measuring probe to a blood pressure monitor which is detachably fitted.