CN218724745U

CN218724745U - Infrared thermometer with blood oxygen measuring function

Info

Publication number: CN218724745U
Application number: CN202222965971.2U
Authority: CN
Inventors: 曹亮
Original assignee: Famidoc Technology Co ltd
Current assignee: Famidoc Technology Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-03-24
Anticipated expiration: 2032-11-08

Abstract

The utility model discloses an infrared clinical thermometer with blood oxygen measuring function. Including the main part and set up infrared probe, display screen and button in the main part, the button press the button cap for the high material that passes through, and arrange the surface of main part in, built-in PCB board of main part and blood oxygen sensor, blood oxygen sensor is located button department, just blood oxygen sensor's searchlighting direction is just to the button press the button cap, the MCU chip is equipped with to the collection on the PCB board. The utility model respectively collects the signals of the infrared sensor and the blood oxygen sensor, respectively calculates, and informs the result to the user through the shared display and sound; meanwhile, the product can arrange the blood oxygen sensor on the key, and blood oxygen data of an operator can be immediately collected when a user measures the temperature, so that the double-item detection of body temperature and blood oxygen can be completed at one time, and the product is convenient and quick.

Description

Infrared thermometer with blood oxygen measuring function

Technical Field

The utility model belongs to the technical field of the clinical thermometer technique and specifically relates to an infrared clinical thermometer that possesses survey blood oxygen function.

Background

As is known to all, body temperature and blood oxygen are common normal detection items of a human body in daily life, and are respectively detected by a thermometer and an oximeter correspondingly. The infrared thermometer obtains infrared radiation emitted by a human skin surface by using an infrared sensor, accurately measures the skin temperature of the human skin, and corrects the temperature difference between a target point and the actual human body temperature by matching with an internal algorithm of the thermometer, so as to obtain the accurate human body temperature, wherein the infrared thermometer is mainly used for measuring the human body temperature; the main measurement indexes of the oximeter are pulse rate, blood oxygen saturation and Perfusion Index (PI). Oxygen saturation (oxygen saturation abbreviated as SpO 2) is one of the clinically important basic data. Oxygen saturation refers to the percentage of bound O2 volume in total blood volume to the total bindable O2 volume.

At present, the equipment capable of measuring blood oxygen and body temperature is available on the market, and a detection instrument integrated in a container exists, but the two instruments are generally tested separately, one physical sign value needs to be measured, and the other value needs to be measured, and the two instruments are simply basically arranged on one product. For consumers, two-item body values cannot be detected at one time.

SUMMERY OF THE UTILITY MODEL

To the deficiencies existing in the prior art, the purpose of the utility model is to provide an infrared thermometer with blood oxygen measuring function.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an infrared clinical thermometer who possesses survey blood oxygen function, includes the main part and sets up infrared probe, display screen and button in the main part, the button press the button cap for the high material that passes through, and arrange the surface of main part in, built-in PCB board of main part and blood oxygen sensor, blood oxygen sensor is located button department, just blood oxygen sensor's searchlighting direction is just to the button press the button cap, the MCU chip is equipped with to the collection on the PCB board, display screen, button, blood oxygen sensor and infrared probe's infrared sensor all is connected with the PCB board, and all constitutes circuit connection with the MCU chip.

Preferably, the main body is further provided with a battery inside, and the PCB is integrated with a power supply circuit for connecting with the battery and converts the working power supply required by each device at the position through the power supply circuit.

By adopting the proposal, the utility model respectively collects the signals of the infrared sensor and the blood oxygen sensor, respectively calculates, and informs the result to the user through the shared display and sound; meanwhile, the blood oxygen sensor can be arranged on the key, and when a user measures the temperature, the blood oxygen data of the operator can be immediately collected, so that the double-item detection of body temperature and blood oxygen can be completed at one time, and the device is convenient and fast.

Drawings

Fig. 1 is a schematic diagram of the principle of blood oxygen transmission detection.

Fig. 2 is a schematic diagram of the blood oxygen reflex detection principle.

Fig. 3 is a schematic perspective view of an embodiment of the present invention.

Fig. 4 is a schematic diagram of a system principle structure according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of the MCU chip and the peripheral circuit structure according to an embodiment of the present invention.

Fig. 6 is a schematic circuit diagram of an infrared sensor according to an embodiment of the present invention.

Fig. 7 is a schematic circuit diagram of the blood oxygen sensor according to the embodiment of the present invention.

Fig. 8 is a schematic circuit diagram of a power supply circuit according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

First, it should be noted that the MCU: a Micro Control Unit (MCU), also called a Single Chip Microcomputer (Single Chip Microcomputer) or a Single Chip Microcomputer (MCU), is a Chip-level computer formed by appropriately reducing the frequency and specification of a Central Processing Unit (CPU) and integrating peripheral interfaces such as a memory, a counter (Timer), a USB, an a/D converter, a UART, and even an LCD driving circuit on a Single Chip.

The blood oxygen detection method is divided into a transmission type and a reflection type:

a transmission type: transmission type optical path detection is the earliest non-invasive measurement method for blood oxygen saturation. Pulse oximetry methods utilize the transmission, absorption, and scattering effects of hemoglobin on illuminating light. For measurements in the human body, the path length of the light is constant, known, so by using two different wavelength light sources, hbO2 and RHb can be measured simultaneously. In the transmission type blood oxygen saturation detection technique, two wavelength Light Sources (LEDs) and Photodiodes (PDs) that alternately emit light are placed on both sides of a human body. The LEDs and PDs are required to be vertically positioned on both sides of the body, so that the test site is selected from the end of the extremity, such as a finger, toe, or earlobe. The incident light is transmitted through the human tissue between the arterial blood, venous blood, light source and light receiver, and the PD on the other side receives the light signal transmitted through the human body, and the conversion produces a current signal, i.e., a PPG signal. As shown in particular in figure 1.

However, the transmission-type optical path detection is limited in that the measurement position can only be performed at the extremity such as a finger or an earlobe which is convenient for the transmission of incident light, and is easily affected by the movement of the limb, so that the system consumes much energy. Compared with the prior art, the reflective optical detection can be realized on flat parts of human skin, such as forehead, wrist, auricle, finger tip and the like, has low energy consumption, and is more suitable for household medical products.

And for the reflective: the light source and the photosensitive device are placed on the same side of the skin of a human body, the LED light source generates incident light, a part of light signals return to the surface of the skin after multiple scattering after passing through subcutaneous tissues, venules and arterioles of the human body, and the photodiode receives the light signals reflected by the tissues of the human body and converts the light signals into current signals. As shown in FIG. 2, the present application is a reflection type for detecting blood oxygen of a human body.

As shown in fig. 3 to 8, the infrared thermometer that possesses survey blood oxygen function that this embodiment provided, include main part 1 and set up infrared probe 2, display screen 3 and button 4 on main part 1, button 4 press the key cap to be the high material that passes through, and place the surface of main part 1 in, 1 built-in PCB board and blood oxygen sensor of main part, blood oxygen sensor is located button 4 department, just blood oxygen sensor's the searchlight direction is just to the key cap of button, the MCU chip is equipped with to the collection on the PCB board, display screen 3, button 4, blood oxygen sensor and infrared probe 2's infrared sensor all is connected with the PCB board, and all constitutes circuit connection with the MCU chip.

The surface of the key 4 of this embodiment is made of a high transparent hard material: like ya keli, PS, PC etc, be used for ensuring that blood oxygen sensor ' S infrared ray can pierce through out and reflect, can realize the button function simultaneously again, infrared sensor IR1 is used for gathering the infrared ray of target radiation and converts into the signal of telecommunication, blood oxygen sensor adopts two infrared LED transmission infrared light, then survey through photosensitive device, when the user key operation is discerned to the MCU chip (the MCU chip can adopt the chip of XWIR028 model), gather IR1 infrared sensor ' S temperature signal of signal on the one hand through AD, on the other hand carries out work and gathers the blood oxygen parameter of user ' S button finger through serial ports control blood oxygen sensor, gather after about 1S and finish, then calculate target temperature and target blood oxygen through the algorithm that MCU predetermines, then show through the display screen.

Further, the main body 1 is also internally provided with a battery, and the PCB is integrated with a power supply circuit for connecting with the battery and converts working power supplies required by each device at the position through the power supply circuit. The circuit diagram of the supply point circuit is shown in the figure.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides an infrared clinical thermometer that possesses survey blood oxygen function which characterized in that: including the main part and set up infrared probe, display screen and button in the main part, the button press the button cap for the high material that passes through, and arrange the surface of main part in, built-in PCB board of main part and blood oxygen sensor, blood oxygen sensor is located button department, just blood oxygen sensor's searchlighting direction is just to the button press the button cap, the MCU chip is equipped with to the collection on the PCB board, display screen, button, blood oxygen sensor and infrared probe's infrared sensor all is connected with the PCB board, and all constitutes circuit connection with the MCU chip.

2. The infrared thermometer with blood oxygen measuring function as set forth in claim 1, wherein: the main part still embeds there is the battery, integrated power supply circuit who is used for being connected with the battery on the PCB board to through the required working power of each device of power supply circuit conversion department.