JPH0629504U - Sensor for measuring biological information - Google Patents

Abstract

(57) [Abstract] [Purpose] A single sensor can function as both a biomedical electrode and an oximeter probe. [Structure] An electrode element 2 is attached on a polymer film 1, a printed wiring board 4 on which an LED 5 and a PD 6 are mounted is adhesively fixed on the electrode element 2, and the electrode element 2, the LED 5 and the PD 6 are covered with an AMPS 11.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a biological information measuring sensor that is attached to the skin of a living body to measure biological information, and particularly measures simultaneously biological information such as an electrocardiogram and biological information such as oxygen saturation of hemoglobin in blood. The present invention relates to a biological information measuring sensor that can be used.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, a biomedical electrode as a sensor for measuring an electrocardiogram of biometric information and an oximeter probe for measuring oxygen saturation of hemoglobin in blood are known.

[0003]

[Problems to be solved by the device]

 However, in the past, the biomedical electrode and the oximeter probe were separately configured, and no single sensor had the functions of both.

The present invention has been made in view of the above points, and a sensor for measuring biological information capable of measuring biological information such as an electrocardiogram and biological information such as oxygen saturation in blood with the same sensor. The purpose is to provide.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a biometric information sensor which is detachably attached to the skin of a living body and electrically measures the information of the living body. An electrode element attached to the electrode, an LED as a light emitting element and a PD as a light receiving element, which are adhered and fixed on the electrode element at a predetermined interval, and an AMPS as a conductive transparent gel covering each element. The feature is to have.

[0006]

According to the above configuration, when the sensor is bonded to the surface of the skin of the living body, the electrode element is in contact with the skin through the conductive AMPS, so that the function as a normal electrode element can be obtained. it can. Moreover, since the LED and PD are in contact with the skin through the transparent AMPS, the function of the oximeter probe can be obtained.

[0007]

【Example】

 An embodiment of the sensor for measuring biological information of the present invention will be described below with reference to the drawings.

1 and 2 show the configuration of an embodiment of the present invention. In the figure, an electrode element 2 printed with Ag or Ag / AgCl is formed on a polymer film 1 serving as a flexible support. A substantially T-shaped flexible printed wiring board 4 is bonded onto the electrode element 2 via a double-sided adhesive tape 3. A light emitting diode (LED) 5 as a light emitting element and a light receiving diode (PD) 6 as a light receiving element are attached to both ends of the wiring board 4 with an interval of about 10 mm to 30 mm. The LED 5 and the PD 6 are connected to the wiring patterns 7 and 8 formed on the wiring board 4. A bioelectrical lead 9 is connected to the electrode element 2 and an oximeter lead 10 is connected to the wiring patterns 7 and 8 so that the respective signals are led to the outside.

The upper surfaces of the electrode element 2, the wiring board 7, the LEDs 5 and the PD 6 are covered with AMPS 11 as a conductive transparent gel. AMPS11 is proposed by the present applicant and as described in Japanese Patent Publication No. 63-59334, a 20% to 60% weight ratio of 2-acrylamido-2-methylpropanesulfonic acid and / or its salt, 10%. It is a composition for a bioelectrode, which comprises as essential components a polyhydric alcohol of 40% to 40% by weight, water of 10% to 50% by weight and a crosslinking agent of 0.1% to 5% by weight. This AMPS 11 does not lose its shape, is safe and has high adhesiveness, has good electrochemical properties, and is easy to manufacture. It is also transparent and conductive.

Next, the operation of this embodiment will be described. Since the electrode element 2 is adhered to the skin of the living body via the AMPS 11 having conductivity, it has a function as a normal living body electrode, and an electrocardiogram and the like between the electrode element 2 and a conventional living body electrode attached to the living body. It is possible to detect the biological signal of. Further, since the LED 5 and the PD 6 face the skin through the transparent AMPS 11, the light emitted from the LED 5 passes through the AMPS 11 and illuminates the blood vessels in the skin tissue. The light that irradiates the blood in the blood vessel is absorbed according to the oxygen saturation of the hemoglobin in the blood, and the amount of reflected light changes. This reflected light again enters the PD 6 through the skin and the AMP S11, and the PD 6 measures the change in the amount of the reflected light, whereby the arterial oxygen content can be measured. That is, it has a function as an oximeter probe.

According to this embodiment, one sensor can have both the functions of the biomedical electrode and the oximeter probe.

[0012]

[Effect of device]

 As described above, according to the biological information measuring sensor of the present invention, the electrode element is attached on the support, the light emitting element and the light receiving element are adhesively fixed on the electrode element, and each element is made of a conductive transparent gel. Since the sensor is coated, it is possible to measure biological information such as an electrocardiogram and biological information such as oxygen saturation of hemoglobin in blood with one sensor.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing the configuration of an embodiment of a sensor for measuring biological information of the present invention.

FIG. 2 is a perspective view of FIG.

[Explanation of symbols]

1 Polymer Film (Flexible Support) 2 Electrode Element 3 Double-sided Adhesive Tape 4 Flexible Printed Wiring Board 5 LED (Light Emitting Element) 6 PD
(Light receiving element) 7,8 Wiring pattern 11 AMP
S (conductive transparent gel)

Claims (1)

[Scope of utility model registration request] 1. A biological information measuring sensor which is detachably attached to the skin of a living body and electrically measures information of the living body, wherein an electrode element attached to a flexible support and an electrode element on the electrode element. 1. A sensor for measuring biological information, comprising: a light emitting element and a light receiving element, which are adhered and fixed at a predetermined interval, and a conductive transparent gel that covers each element.