JPH0445688Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application The present invention relates to an electrocardiographic pulse rate monitor, and relates to the structure of a device for measuring cardiac potential.

(b) Prior Art As a conventional technology of an electrocardiographic pulse meter, for example, there is a method and apparatus for remotely measuring heartbeat and ECG signals using a proximity magnetic field, as disclosed in Japanese Patent Application Laid-Open No. 116325/1983. This device detects the subject's heartbeat or ECG.
(Electrocardiogram) When a signal is measured at an appropriate part of the human body and transmitted from a separate transmitter to a separate receiver, the heartbeat or ECG is detected inside the human body and amplified inside the transmitter using a nearby magnetic field. controlling by means of a signal a magnetic coil in which the directional magnetic field has a substantially multidimensional structure; This is a device that performs remote data transmission by detecting a structure. Conventionally, devices such as those shown in Figs. 4 and 5 have been used to measure a subject's heartbeat or ECG signal at appropriate parts of the human body. In the figure, 101 is a printed circuit board 10 with electronic circuit components installed inside.
Sensor cases 104 and 105 made of hard resin have one end attached and fixed to both sides of the sensor case 101 and electrode hooks 106 and 107 embedded in the other end, and have flexibility. The hooks 106, 107 and the printed circuit board 102 inside the sensor case 101 are connected to the through holes 108, 1 formed in the arm pieces 104, 105.
They are connected to each other via lead wires 110 and 111 passing through 09. This measuring device is engaged with a belt having an electrode fitting for electrocardiographic potential measurement which is wound and fixed around a person's chest via the electrode hook.

In the above conventional example, the lead wires 110, 111
Passing the through holes 108, 109 of the arm pieces 104, 105 requires skill, and the assembly workability is not good.
Also, the lead wires 110, 111 themselves may be disconnected, or the electrode hooks 106, 107 and the lead wires 110, 111 may be disconnected.
I was worried about a poor connection.

(c) Problems to be solved by the invention The problem to be solved by the invention is to improve the connection lead between the electrode hook and the electronic circuit inside the sensor case in order to obtain a reliable connection between them. That's true.

(d) Measures to solve the problem A flexible arm piece is attached to a case containing electronic circuit components and a power supply battery, and a chest attachment belt is attached to the end of the arm piece to measure cardiac potential. At the same time, a conductive metal piece is embedded in the arm piece by integral molding, and the electrode hook and the case are connected to each other. Electronic circuit components are electrically connected via the metal piece.

(E) Function The metal piece embedded in the arm piece is isolated from the outside world by the arm piece, and the electrode hook is reliably electrically connected to the electronic circuit section inside the sensor case.

(F) Embodiment The electrocardiogram measuring device of the present invention will be described in detail below with reference to an embodiment of the drawings.

In the vertical cross-sectional view of FIG. 1 and the horizontal cross-sectional view of FIG. Circuit board 3 to be formed
is horizontally positioned and fixed, and a storage section 5 for the button-type battery 4 is formed on one side, and the storage section 5 is covered with a battery lid 6 that can be opened and closed, and the battery 6 is placed inside the storage section 5. keeping. This battery 4 serves as a power source for various electronic circuit components on the circuit board 3.

Reference numerals 7 and 8 refer to mounting holes 9 and 10 formed on both sides of the sensor case 1 to attach the upper and lower cases 1a and 1b.
The packing portions 7a, 8a at one end are attached and fixed by superposition of the arms, and electrically conductive metal pieces, for example, copper pieces 11, 12 are attached over substantially the entire longitudinal direction of the arms 7, 8. The arms 78 are integrally embedded by molding, and hooks 13 and 14 made of conductive metal are housed at the other end of the arm piece 78. Buttons 13a and 14a made of insulating resin are fitted onto the outer surfaces of the hooks 13 and 14, respectively. Further, a ground electrode hook 15 is integrally embedded in the lower case 1b by a molding method.

The copper pieces 11 and 12 each have one end facing inside the sensor case 1 through the mounting holes 9 and 10 of the sensor case 1, and are electrically connected to the circuit board 3 via their short leads 16 and 17. There is. The other ends of the copper pieces 11 and 12 are electrically connected to the hooks 13 and 14 within the arm pieces 7 and 8. Further, a ground electrode hook 15 is also connected to the circuit board 3 together with a copper piece 19 via a lead 18.

Next, as shown in FIG. 3, the sensor case 1 includes connection fittings 22, 23 for detecting cardiac potential, which are provided on a belt 21 that is wrapped around and fixed to the chest of a human body 20.
24, the hooks 13, 14 at the ends of the arm pieces 7, 8, and the hook 15 on the back surface of the sensor case 1 are fitted to allow the sensor case to be detachably attached. Further, in the figure, 25 is a receiver, and the hooks 13, 14, 1
5, the electrocardiographic potential data is input to the electronic circuit of the circuit board 3, and is processed by the electronic circuit, and this processed data is transmitted from the sensor case 1 to the waist of the human body 20 using radio waves. receiver 25
is input. Receiver 25 receives the signal from sensor case 1 and displays the heart rate based on the processed data.

The hooks 13 and 14 may be insert-molded at the same time as the copper pieces 11 and 12 are insert-molded into the arm pieces 7 and 8, or by forming recesses in the arm pieces 7 and 8 for attachment. You can also attach and fix it later.

(g) Effects of the invention As explained above, the present invention involves attaching a flexible arm piece to a case containing electronic circuit components and a power supply battery, and attaching the cardiac potential of the chest attachment belt to the end of the arm piece. In addition to attaching an electrode hook that removably fits and is electrically connected to the measurement electrode fitting, a conductive metal piece is embedded in the arm piece by integral molding, and the electrode hook and the case are connected together. By electrically connecting electronic circuit components through the metal piece, the following effects can be expected.

The sensor case is attached to the human body's chest in close contact with the flexible arm piece.

Since the packing of the connecting portion between the arm piece and the sensor case is integrally formed when the arm piece is molded, a waterproof structure can be easily achieved.

The joint between the electrode hook and the metal piece is reliably protected by the integral molding of the arm piece.

There is no need to pass the lead wire through the arm piece, improving productivity.

Leads made of metal pieces are less likely to break like lead wires.

The shape of the arm itself can be made thinner, and the device can be made more compact.

Even if the distance between the electrode hooks is increased, there is no need to worry about poor connection, and the accuracy of detecting cardiac potential increases.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of the electrocardiogram measuring device of the present invention.
2 is a horizontal sectional view, FIG. 3 is an explanatory view of the state of use, and FIGS. 4 and 5 are a sectional view and a top view corresponding to FIGS. 1 and 2, respectively. 3... Electronic circuit parts, 4... Battery, 1... Case, 7, 8... Arm piece, 21... Belt, 22, 2
3...Metal fittings, 13, 14...Hooks, 11, 12
……Metal piece.

Claims (1)

[Scope of utility model registration request] A flexible arm piece is attached to a case containing electronic circuit components and a power supply battery, and the end of the arm piece is removably fitted with an electrode fitting for measuring cardiac potential on a chest attachment belt to electrically At the same time as attaching an electrode hook to be connected, a conductive metal piece is embedded in the arm piece by integral molding, and the electrode hook and the electronic circuit component in the case are electrically connected via the metal piece. A cardiac potential measuring device characterized by the following.