Wearable physiological signal detection equipment

Abstract

A wearable physiological signal detection device relates to the technical field of wearable devices and is mainly structurally characterized in that a data connector is arranged on the side face of a watch body, and a reflective blood oxygen saturation detection module is arranged on the back face of the watch body; a finger of a human body can be sleeved with the finger pulse probe body, the finger pulse probe oxyhemoglobin saturation detection module is embedded in the inner side face of the finger pulse probe body, one end of the data line body is fixedly connected to the finger pulse probe body and electrically connected with the finger pulse probe oxyhemoglobin saturation detection module, and the other end of the data line body is fixedly connected with the data line connector. And the data line connector is detachably matched and connected with the data connection port on the side surface of the watch body. According to the utility model, the oxyhemoglobin saturation detection module on the finger pulse probe can be used for accurately detecting the oxyhemoglobin saturation and the pulse rate, and when the finger pulse probe is not used, the intelligent watch can be independently used for detecting the oxyhemoglobin saturation and the pulse rate and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of wearable devices, and in particular to a wearable physiological signal detection device. Background Art

[0002] Blood oxygen saturation is an important physiological parameter that reflects respiratory and circulatory functions, and is an indicator of the ability of human blood to carry oxygen. Monitoring blood oxygen indicators can help you understand whether your respiratory and immune systems are normal; blood oxygen testing can be used to follow up on treatment effects. Patients must monitor blood oxygen during emergency treatment and transportation, firefighting, and high-altitude flights; medical staff also monitor blood oxygen as a must-monitor item during ward rounds and outpatient visits. The measurement principle of the oximeter is based on the absorption spectrum characteristics of reduced hemoglobin (Hb) and oxygenated hemoglobin (HbO2) in red light and near-infrared light. It uses photoelectric detection technology combined with volume pulse recording technology, and uses two beams of light of different wavelengths to illuminate the fingertips of the human body. The photosensitive component obtains the measurement signal, and the obtained information is processed to calculate the blood oxygen saturation value. There are currently two solutions for non-invasive blood oxygen detection: transmission and reflection to measure blood oxygen saturation. The transmission light source and receiving tube are on both sides of the finger, and the reflection light source and receiving tube are on the same side.

[0003] Wearable devices such as smart watches or bracelets generally emit light to the blood vessels in the wrist of the human body through a light-emitting device, and receive the reflected light from the human tissue through a receiving device to obtain the measurement results. However, the following problems may exist when using smart watches or bracelets: First, part of the light emitted from the light-emitting device will be reflected or refracted inside the wearable device and then directly received by the receiving device, reducing the accuracy of the measurement results; second, if the watch or watch does not fit the skin tightly, it will cause the incident distance and the influence of ambient light, and the measurement results will be greatly biased under different conditions.

[0004] In addition, the finger clip oximeter uses a transmission method to measure blood oxygen saturation by wearing a finger pulse probe on the fingertip or wrapping the finger pulse probe around the fingertip for measurement. Since the front part of the finger is distributed with a rich capillary network and the muscle and bone tissue of the finger are relatively thin, this position has a more obvious blood flow volume change characteristic, which is conducive to obtaining a stable high signal-to-noise ratio spectral signal, and the measurement result is more accurate.

[0005] However, the existing strap-type blood oxygen detector or detection equipment is large in size, the wearer's activities are restricted and not conducive to long-term detection. For example, CN202111536293.1 discloses a blood oxygen saturation detection device, a detection system and a method for using the detection system, including: a finger ring, which is used to be sleeved on the human knuckle; a detection module, which is embedded in the inner side of the finger ring, and is used to be close to the surface of the knuckle after the finger ring is sleeved on the knuckle, and the detection module is used to detect the blood oxygen concentration of the human body; a smart watch, which is used to bind to the wrist of the human body and communicate with the remote terminal; the data line is electrically connected to the detection module and the smart watch respectively; wherein the smart watch is used to obtain and display the blood oxygen concentration detected by the detection module in real time through the data line, and is used to send the acquired blood oxygen concentration to the remote terminal. Compared with the prior art, the purpose of real-time detection and continuous monitoring of the blood oxygen concentration of miners is achieved, thereby effectively avoiding the problem of miners' life safety being threatened due to insufficient oxygen supply when an accident occurs. However, the blood oxygen monitor can only detect blood oxygen levels, and the watch cannot monitor blood oxygen levels alone after it is separated from the ring. Utility Model Content

[0006] The purpose of the utility model is to provide a wearable physiological signal detection device, which has two independent units, namely a finger pulse probe and a smart watch. The blood oxygen saturation detection module on the finger pulse probe can be used to perform accurate blood oxygen saturation and pulse rate detection, and the smart watch can be used alone to perform blood oxygen saturation and pulse rate detection when the finger pulse probe is not used.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is: a wearable physiological signal detection device, including a smart watch, a finger pulse probe, and a data cable, wherein:

[0008] The smart watch comprises a watch body and a watch strap connected to both ends of the watch body, a data connection port is arranged on the side of the watch body, and a reflective blood oxygen saturation detection module is arranged on the back of the watch body;

[0009] The finger pulse probe comprises a finger pulse probe body and a finger pulse probe blood oxygen saturation detection module. The finger pulse probe body can be sleeved on a human finger, and the finger pulse probe blood oxygen saturation detection module is embedded and installed on the inner side of the finger pulse probe body.

[0010] The data cable includes a data cable body, a data cable connector shell and a data cable connector. One end of the data cable body is fixedly connected to the finger pulse probe body and electrically connected to the finger pulse probe blood oxygen saturation detection module, and the other end is fixedly connected to the data cable connector. A data cable connector shell is fixedly arranged outside the data cable connector. The data cable connector is detachably matched and connected to the data connection port on the side of the watch body. The detection data of the finger pulse probe blood oxygen saturation detection module is transmitted to the processing unit in the watch body through the data cable to calculate the blood oxygen saturation and pulse rate, and the calculation results of the blood oxygen saturation and pulse rate are displayed on the display screen of the watch body.

[0011] Since the watch is equipped with a reflective blood oxygen saturation detection module, blood oxygen saturation and pulse rate detection can be performed when only the watch is worn without a finger pulse probe. The detection data of the reflective blood oxygen saturation detection module is also calculated and processed by the processing unit in the watch body, and the results are displayed on the display screen of the watch body.

[0012] Furthermore, the reflective blood oxygen saturation detection module includes a first light-emitting unit and a first receiving unit, wherein the first light-emitting unit includes a first LED and a second LED, and the first receiving unit is arranged between the first LED and the second LED, and the first LED and the second LED are three-in-one LEDs of visible red light, invisible infrared light and green light. The first receiving unit is used to receive light emitted by the first light-emitting unit and then reflected by the wrist, and the first receiving unit is a photosensitive receiving sensor.

[0013] The reflective blood oxygen saturation detection module can work in three modes: in the first mode, the first LED and the second LED generate visible red light and invisible red light respectively, which are used to measure blood oxygen saturation; in the second mode, the first LED generates visible red light and green light, and the second LED generates invisible red light and green light, which are used to simultaneously measure blood oxygen saturation and pulse rate; in the third mode, the first LED and the second LED generate green light at the same time, which is used to measure pulse rate.

[0014] As a further improvement, the reflective blood oxygen saturation detection module also includes a third light-emitting unit, which includes a third LED and a fourth LED respectively located on both sides of the first receiving unit, and the third LED and the fourth LED are both three-in-one LEDs of visible red light, invisible infrared light and green light.

[0015] At this time, the first receiving part also receives the light emitted by the third light emitting part and then reflected by the wrist. In this way, four LED lights can be used at the same time, which can emit more light to penetrate the skin surface and make the detection more accurate.

[0016] Furthermore, the finger pulse probe body is a rollable strip structure, a Velcro hook surface is fixedly provided at one end of the finger pulse probe body away from the finger pulse probe blood oxygen saturation detection module, and a Velcro fur surface is fixedly provided on the outer side of the finger pulse probe body. The entire outer side of the finger pulse probe body can be a Velcro fur surface, so that the size of the finger pulse probe after rolling can be conveniently adjusted according to the thickness of the finger.

[0017] In a specific implementation, the finger pulse probe body may also adopt other structures, such as a fixed ring structure similar to a ring or a finger sleeve structure.

[0018] Furthermore, the finger pulse probe blood oxygen saturation detection module is of transmission type, including a second light emitting unit and a second receiving unit, which are arranged opposite to each other on the finger pulse probe, and the relative arrangement refers to the state after the finger pulse probe body is sleeved on the finger, so that the second receiving unit can receive the light emitted by the second light emitting unit and then transmitted through the finger. In a specific implementation, the second light emitting unit also includes a visible red light LED and an invisible infrared light LED, and the second receiving unit is a phototransistor.

[0019] When the finger pulse probe body is a rollable strip structure, a suitable value can be selected as the spacing between the second light-emitting portion and the second receiving portion, so that when the finger pulse probe body is covered on the fingertip, the second light-emitting portion and the second receiving portion are in a facing position; and when the finger pulse probe body is covered on the base of the finger, since the base of the finger is relatively thick, an angle is generated between the second light-emitting portion and the second receiving portion, which can prevent the light from being blocked by the phalanges of the finger and affecting the receiving effect of the second receiving portion. This angle can be set to 120±10°.

[0020] The transmission-type blood oxygen saturation detection module has higher monitoring accuracy than the reflection-type detection module.

[0021] As a preferred solution, the data connection port on the side of the watch body is a USB interface, and the data cable connector is an adapted USB connector.

[0022] The USB interface is a universal interface form. In specific implementation, the USB interface can adopt common interface types such as Type-C, Mini-USB and Micro-USB.

[0023] As another preferred solution, the data connection port on the side of the watch body is a metal contact interface, and the data line connector is an adapted metal probe connector. The metal contact interface and the metal probe connector can be magnetic.

[0024] Both the metal contact interface and the metal probe connector are sealed structures, and have better waterproof and dustproof effects than the USB interface.

[0025] As a further improvement, a watch shell is also sleeved outside the watch body, a through hole is opened on the side of the watch shell, and the front end of the data line connector shell is detachably or fixedly installed in the through hole.

[0026] The side of the watch case is made of elastic material, so the front end of the data cable connector shell can be snapped into the above-mentioned through hole, and can also be easily removed for easy use and storage. Of course, the front end of the data cable connector shell can also be fixedly installed in the above-mentioned through hole, and the specific method of fixed installation can be one-piece molding during processing. The watch case can be used to firmly fix the data cable, which can prevent the data cable from falling off during the detection process, and at the same time enhance the waterproof and dustproof effect of the interface.

[0027] Furthermore, a skin galvanic sensor and a skin temperature sensor are also provided on the back of the watch body. The skin temperature sensor is installed under one of the electrode sheets of the skin galvanic sensor and conducts heat through thermal conductive glue. An acceleration sensor is also provided inside the watch body.

[0028] In this way, the skin electrical sensor can also be used to monitor the emotions of the subject, the skin temperature sensor can be used to continuously monitor body temperature, and the acceleration sensor can be used to record exercise data such as step count detection and sleep staging. The detection data of the above sensors are also calculated and processed by the processing unit in the watch body, and the results are displayed on the display screen of the watch body.

[0029] Furthermore, the watch body is connected to the mobile phone via Bluetooth.

[0030] In this way, various monitoring results can be transmitted to the mobile phone via Bluetooth communication and displayed on the mobile phone APP, which is more convenient to use.

[0031] The beneficial effects of the utility model are:

[0032] (1) It has two independent units, namely, a finger pulse probe and a smart watch. The blood oxygen saturation detection module on the finger pulse probe can be used to accurately detect blood oxygen saturation and pulse rate. When the finger pulse probe is not used, the smart watch can be used alone to detect blood oxygen saturation and pulse rate;

[0033] (ii) A metal contact connection method can be used, and the data cable can be fixed by a watch case, which has good waterproof and dustproof effects;

[0034] (iii) By setting up a variety of sensors on smart watches, a variety of monitoring functions can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1 (front view);

[0036] Figure 2This is a schematic diagram of the three-dimensional structure of Example 1 (bottom surface);

[0037] Figure 3 This is a schematic diagram of the three-dimensional assembly structure of Example 1;

[0038] Figure 4 This is a schematic diagram of the connection structure of the finger pulse probe, data cable and watch housing in Example 1;

[0039] Figure 5 This is a partial enlarged schematic diagram of the data cable connector housing and the watch housing of Example 1;

[0040] Figure 6 This is a schematic diagram of the three-dimensional structure of the finger pulse probe of Example 1 when it is rolled up (front view);

[0041] Figure 7 This is a schematic diagram of the three-dimensional structure of Example 1 when worn on the hand;

[0042] Figure 8 This is a schematic diagram of the three-dimensional structure when the data line is not connected in Example 2 (front view);

[0043] Fig. 9 This is a schematic diagram of the three-dimensional structure after the data lines are connected in Example 2 (front view);

[0044] Fig.10 This is a schematic diagram of the connection structure of the finger pulse probe, data cable and watch case in Example 3. DETAILED DESCRIPTION

[0045] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0046] Example 1

[0047] Figures 1 to 7 The first specific embodiment of the utility model is shown, a wearable physiological signal detection device, including a smart watch 1, a finger pulse probe 2, and a data cable 3, wherein:

[0048] The smart watch 1 includes a watch body 101 and a watch strap 102 connected to both ends of the watch body 101. A data connection port is provided on the side of the watch body 101, and a reflective blood oxygen saturation detection module 104 is provided on the back of the watch body 101.

[0049] The finger pulse probe 2 includes a finger pulse probe body 201 and a finger pulse probe blood oxygen saturation detection module. The finger pulse probe body 201 can be sleeved on a human finger, and the finger pulse probe blood oxygen saturation detection module is embedded and installed on the inner side of the finger pulse probe body 201;

[0050] The data cable 3 includes a data cable body 301, a data cable connector shell 302 and a data cable connector. One end of the data cable body 301 is fixedly connected to the finger pulse probe body 201 and electrically connected to the finger pulse probe blood oxygen saturation detection module, and the other end is fixedly connected to the data cable connector. The data cable connector shell 302 is fixedly arranged outside the data cable connector. The data cable connector is detachably matched and connected to the data connection port on the side of the watch body 101. The detection data of the finger pulse probe blood oxygen saturation detection module is transmitted to the processing unit in the watch body 101 through the data cable 3 to calculate the blood oxygen saturation and pulse rate, and the calculation results of the blood oxygen saturation and pulse rate are displayed on the display screen of the watch body 101.

[0051] In this embodiment, the reflective blood oxygen saturation detection module 104 includes a first light-emitting unit, a third light-emitting unit and a first receiving unit 1043, wherein the first light-emitting unit includes a first LED 1041 and a second LED 1042, and the third light-emitting unit includes a third LED 1044 and a fourth LED 1045. The above four LEDs are symmetrically arranged around the first receiving unit 1043, and the four LEDs are three-in-one LEDs of visible red light, invisible infrared light and green light. The first receiving unit 1043 is used to receive the light emitted by the first light-emitting unit and the third light-emitting unit and then reflected by the wrist, and the first receiving unit 1043 is a photosensitive receiving sensor.

[0052] In this embodiment, the finger pulse probe body 201 is a rollable strip structure, a Velcro hook surface 204 is fixedly provided at one end of the finger pulse probe body 201 away from the finger pulse probe blood oxygen saturation detection module, and a Velcro fur surface 205 is fixedly provided on the entire outer side of the finger pulse probe body 201.

[0053] The finger pulse probe blood oxygen saturation detection module is a transmission type, including a second light emitting unit 202 and a second receiving unit 203. The second light emitting unit 202 and the second receiving unit 203 are arranged opposite to each other on the curled finger pulse probe. The relative arrangement refers to the state after the finger pulse probe body 201 is sleeved on the finger, so that the second receiving unit 203 can receive the light emitted by the second light emitting unit 202 and then transmitted through the finger. The second light emitting unit 202 also includes a visible red light LED and an invisible infrared light LED, and the second receiving unit 203 is a phototransistor.

[0054] In this embodiment, a suitable value is selected as the distance between the second light-emitting part 202 and the second receiving part 203, so that when the finger pulse probe body 201 is put on the fingertip, the second light-emitting part 202 and the second receiving part 203 are in a facing position; and when the finger pulse probe body 201 is put on the base of the finger, an angle is generated between the second light-emitting part 202 and the second receiving part 203, which can prevent the light from being blocked by the finger bones and affecting the receiving effect of the second receiving part 203.

[0055] In this embodiment, the data connection port on the side of the watch body 101 is a metal contact type interface 103, and the data line connector is an adaptive metal probe type connector 303.

[0056] The watch body 101 is also covered with a watch case 4, and a through hole 401 is opened on the side of the watch case 4, and the front end of the data line connector shell 302 is detachably installed in the through hole 401. The side of the watch case 4 is made of elastic material, so the front end of the data line connector shell 302 can be engaged in the through hole 401 and can also be easily removed.

[0057] In this embodiment, a skin galvanometer sensor 105 and a skin temperature sensor 106 are also provided on the back of the watch body 101. The skin temperature sensor 106 is installed under one of the electrode sheets of the skin galvanometer sensor 105 and conducts heat through thermal conductive glue. An acceleration sensor 107 is also provided inside the watch body 101.

[0058] The skin electrical sensor is used to monitor the emotions of the subject, the skin temperature sensor is used to continuously monitor the body temperature, and the acceleration sensor is used to record the number of steps and other exercise data and sleep stages. The detection data of the above sensors are also calculated and processed by the processing unit in the watch body 101, and the results are displayed on the display screen of the watch body 101.

[0059] The watch body 101 is connected to the mobile phone via Bluetooth.

[0060] Example 2

[0061] Figures 8-9 The second specific implementation of the utility model is shown, which is basically the same as the first specific implementation, except that the data connection port on the side of the watch body 101 is a Type-C type USB interface 103', and the data cable connector is an adapted Type-C type USB connector 303'.

[0062] When connected using a USB interface, it itself has a good fixing effect, so this embodiment does not use the watch case to fix the data cable.

[0063] Example 3

[0064] Fig.10 The third specific implementation of the utility model is shown. This implementation is basically the same as the first specific implementation, with the only difference being that the front end of the data line connector shell 302 is manufactured in an integrally formed manner and fixedly mounted in the through hole 401 on the side of the watch housing 4.

[0065] The above embodiments of the utility model are merely examples for explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes and modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the utility model are still within the scope of protection of the utility model.

Claims

1. A wearable physiological signal detection device, characterized in that: It comprises a smart watch (1), a finger pulse probe (2), and a data cable (3), wherein: The smart watch (1) comprises a watch body (101) and a watch strap (102) connected to two ends of the watch body (101); a data connection port is arranged on the side of the watch body (101); and a reflective blood oxygen saturation detection module (104) is arranged on the back of the watch body (101); The finger pulse probe (2) comprises a finger pulse probe body (201) and a finger pulse probe blood oxygen saturation detection module. The finger pulse probe body (201) can be sleeved on a human finger, and the finger pulse probe blood oxygen saturation detection module is embedded and installed on the inner side of the finger pulse probe body (201). The data cable (3) comprises a data cable body (301), a data cable connector shell (302) and a data cable connector. One end of the data cable body (301) is fixedly connected to the finger pulse probe body (201) and electrically connected to the finger pulse probe blood oxygen saturation detection module, and the other end is fixedly connected to the data cable connector. The data cable connector shell (302) is fixedly arranged outside the data cable connector. The data cable connector is detachably matched and connected to a data connection port on the side of the watch body (101).

2. A wearable physiological signal detection device according to claim 1, characterized in that: The reflective blood oxygen saturation detection module (104) comprises a first light-emitting unit and a first receiving unit (1043), wherein the first light-emitting unit comprises a first LED (1041) and a second LED (1042), and the first receiving unit (1043) is arranged between the first LED (1041) and the second LED (1042), and the first LED (1041) and the second LED (1042) are both three-in-one LEDs of visible red light, invisible infrared light and green light.

3. A wearable physiological signal detection device according to claim 2, characterized in that: The reflective blood oxygen saturation detection module (104) also includes a third light-emitting unit, which includes a third LED (1044) and a fourth LED (1045) respectively located on both sides of the first receiving unit (1043), and the third LED (1044) and the fourth LED (1045) are both three-in-one LEDs that emit visible red light, invisible infrared light and green light.

4. A wearable physiological signal detection device according to claim 1, characterized in that: The finger pulse probe body (201) is a rollable strip-shaped structure, and a Velcro hook surface (204) is fixedly provided at one end of the finger pulse probe body (201) away from the finger pulse probe blood oxygen saturation detection module, and a Velcro fleece surface (205) is fixedly provided on the outer side of the finger pulse probe body (201).

5. A wearable physiological signal detection device according to claim 1, characterized in that: The finger pulse probe blood oxygen saturation detection module is of transmission type, comprising a second light emitting unit (202) and a second receiving unit (203), wherein the second light emitting unit (202) and the second receiving unit (203) are arranged opposite to each other on the finger pulse probe.

6. A wearable physiological signal detection device according to claim 1, characterized in that: The data connection port on the side of the watch body (101) is a USB interface (103'), and the data line connector is an adapted USB connector (303').

7. A wearable physiological signal detection device according to claim 1, characterized in that: The data connection port on the side of the watch body (101) is a metal contact type interface (103), and the data line connector is an adaptive metal probe type connector (303).

8. A wearable physiological signal detection device according to claim 7, characterized in that: The watch body (101) is also covered with a watch housing (4), a through hole (401) is opened on the side of the watch housing (4), and the front end of the data line connector housing (302) is detachably or fixedly installed in the through hole (401).

9. A wearable physiological signal detection device according to claim 1, characterized in that: The back of the watch body (101) is also provided with a skin galvanic sensor (105) and a skin temperature sensor (106), the skin temperature sensor (106) is installed under one of the electrode sheets of the skin galvanic sensor (105), and an acceleration sensor (107) is also provided inside the watch body (101).

10. A wearable physiological signal detection device according to claim 1, characterized in that: The watch body (101) is connected to the mobile phone via Bluetooth.

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