Blood oxygen sensor

Abstract

An embodiment of the present application provides a blood oxygen probe for fastening to the finger of a person to be tested to detect blood oxygen saturation, the blood oxygen probe comprising: a light transmitter for emitting light to the finger of the person to be tested; a light receiver for receiving the light emitted by the light transmitter and after interacting with the finger of the person to be tested, thereby obtaining a data signal related to the person to be tested; a signal transmission component for transmitting the data signal obtained by the light receiver to an external processing device; a clamping component, the clamping component comprising a housing and a finger pad, the light transmitter and the light receiver are accommodated in the clamping component, the housing comprising at least a first shell and a second shell, the first shell and the second shell are rotatably connected to form a clamping cavity with adjustable size; the finger pad is arranged on the inner surface of the clamping cavity, and the finger pad is adapted to the size of the finger by adjusting the size of the clamping cavity; a strap, the strap is configured to extend along the outer surface of the clamping component, and is used to removably fix the clamping component to the finger.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a blood oxygen sensor. Background Art

[0002] Blood oxygen saturation (SpO2) is the percentage of oxygenated hemoglobin (HbO2) in the blood to the total hemoglobin (Hb) capacity that can be combined, that is, the concentration of blood oxygen in the blood. It is an important physiological parameter of respiratory circulation and one of the important basic data in clinical medicine. At present, the measurement of blood oxygen saturation mostly uses finger clip and duckbill finger cuff blood oxygen probes. When measuring, you only need to clip the blood oxygen probe on the fingertips of the person, and the sensor inside the blood oxygen probe can detect the hemoglobin concentration and blood oxygen saturation of the human body.

[0003] When the finger-clip blood oxygen probe is clamped on the fingertips for long-term monitoring, it will cause discomfort to the user. At the same time, due to the different thicknesses of the fingers of the tested persons, the clamp may not be firm enough, resulting in the probe shifting and falling off in scenarios where the tested persons can move independently, causing inaccurate measurement results and bringing a lot of unnecessary trouble to medical staff. Summary of the invention

[0004] The main purpose of the embodiments of the present application is to provide a blood oxygen probe that is designed to adapt to persons being tested with different finger thicknesses to achieve accurate measurement of blood oxygen saturation.

[0005] In a first aspect, an embodiment of the present application provides a blood oxygen sensor, which is used to be fastened to a finger of a person to be tested to detect blood oxygen saturation. The blood oxygen sensor includes:

[0006] A light emitter, used for emitting light to the finger of the person to be tested;

[0007] A light receiver, used to receive the light emitted by the light transmitter and after interacting with the finger of the person to be tested, so as to obtain a data signal related to at least one physiological characteristic of the person to be tested;

[0008] a signal transmission component, the signal transmission component being connected to the optical receiver and being used for transmitting the data signal obtained by the optical receiver to an external processing device;

[0009] A clamping assembly, the clamping assembly comprising a housing and a finger pad adapted to the housing, the optical transmitter and the optical receiver being accommodated in the clamping assembly, the housing comprising at least a first shell and a second shell, the first shell and the second shell being rotatably connected to form a clamping cavity having an opening and adjustable in size;

[0010] The finger pad includes a first clamping portion, a second clamping portion, and a finger pad portion arranged between the first clamping portion and the second clamping portion; wherein the finger pad portion is used to provide support for the fingertip of the finger placed in the clamping cavity, and as the size of the clamping cavity is adjusted, the distance between the first clamping portion and the second clamping portion changes.

[0011] In a second aspect, an embodiment of the present application provides a blood oxygen sensor, which is used to be fastened to a finger of a person to be tested to detect blood oxygen saturation. The blood oxygen sensor includes:

[0012] A light emitter, used for emitting light to the finger of the person to be tested;

[0013] A light receiver, used to receive the light emitted by the light transmitter and after interacting with the finger of the person to be tested, so as to obtain a data signal related to at least one physiological characteristic of the person to be tested;

[0014] a signal transmission component, the signal transmission component being connected to the optical receiver and being used for transmitting the data signal obtained by the optical receiver to an external processing device;

[0015] A clamping assembly, the clamping assembly comprising a housing and a finger pad matched with the housing, the optical transmitter and the optical receiver being accommodated in the clamping assembly, the housing comprising at least a first shell and a second shell, the first shell and the second shell being rotatably connected to form a clamping cavity having an opening and adjustable in size; the finger pad is arranged on the inner surface of the clamping cavity, and the finger pad is matched with the size of the finger by adjusting the size of the clamping cavity;

[0016] A strap is configured to extend along an outer surface of the clamp assembly for removably securing the clamp assembly to the finger.

[0017] The embodiment of the present application provides a blood oxygen probe for fastening to the finger of a person to be tested to detect blood oxygen saturation. In one embodiment, the blood oxygen probe includes a light transmitter for emitting light to the finger of the person to be tested; a light receiver for receiving the light emitted by the light transmitter and after interacting with the finger of the person to be tested, so as to obtain a data signal related to at least one physiological characteristic of the person to be tested; a signal transmission component, the signal transmission component is connected to the light receiver, and is used to transmit the data signal obtained by the light receiver to an external processing device; a clamping component, the clamping component includes a housing and A finger pad adapted to the housing, the optical transmitter and the optical receiver are accommodated in the clamping assembly, the housing includes at least a first shell and a second shell, the first shell and the second shell are rotatably connected to form a clamping cavity with an opening and adjustable size; the finger pad includes a first clamping portion, a second clamping portion, and a finger pad portion arranged between the first clamping portion and the second clamping portion; wherein the finger pad portion is used to provide support for the fingertips of the finger placed in the clamping cavity, and as the size of the clamping cavity is adjusted, the distance between the first clamping portion and the second clamping portion changes. The blood oxygen probe provided in this embodiment is arranged by rotatably connecting the first shell and the second shell of the clamping assembly, so that a clamping cavity with an opening and adjustable size is formed between the first shell and the second shell. By providing a finger pad, the finger pad portion of the finger pad is used to provide support for the fingertips of the fingers placed in the clamping cavity, and as the size of the clamping cavity is adjusted, the distance between the first clamping portion and the second clamping portion changes, thereby clamping fingers of different sizes placed in the clamping cavity, thereby achieving accurate measurement of the blood oxygen saturation data of the person to be measured.

[0018] In some embodiments, the blood oxygen probe includes: a light transmitter, which is used to emit light to the finger of the person to be tested; a light receiver, which is used to receive the light emitted by the light transmitter and interacts with the finger of the person to be tested, so as to obtain a data signal related to at least one physiological characteristic of the person to be tested; a signal transmission component, which is connected to the light receiver and is used to transmit the data signal obtained by the light receiver to an external processing device; a clamping component, which includes a shell and a finger pad adapted to the shell, and the light transmitter and the light receiver are accommodated in the clamping component, and the shell includes at least a first shell and a second shell, the first shell and the second shell are rotatably connected to form a clamping cavity with an opening and adjustable size; the finger pad is arranged on the inner surface of the clamping cavity, and the finger pad is adapted to the size of the finger by adjusting the size of the clamping cavity; a strap, which is configured to extend along the outer surface of the clamping component and is used to removably fix the clamping component to the finger. The blood oxygen sensor provided in this embodiment is arranged by rotating and connecting the first shell and the second shell of the clamping assembly, so that a clamping cavity with an opening and adjustable size is formed between the first shell and the second shell. A finger pad is arranged in the clamping cavity to provide clamping support for the finger, and as the size of the clamping cavity is adjusted, the finger pad is adapted to the size of the finger, thereby clamping fingers of different sizes placed in the clamping cavity, thereby achieving accurate measurement of the blood oxygen saturation data of the person to be measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 is a schematic diagram of the three-dimensional structure of the blood oxygen sensor provided in the embodiment of the present application;

[0021] Figure 2 It is a schematic diagram of the structure of the cooperation between the clamping component and the signal transmission component of the blood oxygen sensor provided in the embodiment of the present application;

[0022] Figure 3 This is a structural schematic diagram of a deformed structure of a signal transmission component of a blood oxygen sensor provided in an embodiment of the present application;

[0023] Figure 4 This is a schematic diagram of a usage scenario of the blood oxygen sensor provided in an embodiment of the present application;

[0024] Figure 5AIt is a schematic diagram of the structure of the clamping component and the signal transmission component of the blood oxygen sensor provided in the embodiment of the present application in combination with the first-person perspective explosion;

[0025] Figure 5B It is a schematic diagram of the structure of the clamping component and the signal transmission component of the blood oxygen sensor provided in the embodiment of the present application in combination with the second viewing angle explosion;

[0026] Figure 6 is a schematic diagram of the exploded structure of the housing of the clamping assembly;

[0027] Figure 7-9 is an exploded structural schematic diagram of a deformed embodiment of a housing of a clamping assembly;

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of another embodiment of the blood oxygen sensor provided in the embodiment of the present application;

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the strap of the blood oxygen sensor provided in the embodiment of the present application for adjusting the size of the clamping cavity;

[0030] Fig.12 It is a three-dimensional structural schematic diagram of a modified implementation manner of a limiter of a blood oxygen sensor provided in an embodiment of the present application;

[0031] Fig.13 It is a schematic diagram of the three-dimensional structure of a modified implementation of the strap of the blood oxygen sensor provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] In the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] The embodiment of the present application provides a blood oxygen probe for fastening to the finger of a person to be tested to detect blood oxygen saturation. In one embodiment, the blood oxygen probe includes a light transmitter for emitting light to the finger of the person to be tested; a light receiver for receiving the light emitted by the light transmitter and after interacting with the finger of the person to be tested, so as to obtain a data signal related to at least one physiological characteristic of the person to be tested; a signal transmission component, the signal transmission component is connected to the light receiver, and is used to transmit the data signal obtained by the light receiver to an external processing device; and a clamping component, the clamping component It includes a shell and a finger pad matched with the shell, the optical transmitter and the optical receiver are accommodated in the clamping assembly, the shell includes at least a first shell and a second shell, the first shell and the second shell are rotatably connected to form a clamping cavity with an opening and adjustable size; the finger pad includes a first clamping part, a second clamping part, and a finger pad part arranged between the first clamping part and the second clamping part; wherein the finger pad part is used to provide support for the fingertip of the finger placed in the clamping cavity, and as the size of the clamping cavity is adjusted, the distance between the first clamping part and the second clamping part changes. The blood oxygen probe provided in this embodiment is arranged by rotatably connecting the first shell and the second shell of the clamping assembly, so that a clamping cavity with an opening and adjustable size is formed between the first shell and the second shell. By providing a finger pad, the finger pad portion of the finger pad is used to provide support for the fingertips of the fingers placed in the clamping cavity, and as the size of the clamping cavity is adjusted, the distance between the first clamping portion and the second clamping portion changes, thereby clamping fingers of different sizes placed in the clamping cavity, thereby achieving accurate measurement of the blood oxygen saturation data of the person to be measured.

[0035] In some embodiments, the blood oxygen probe includes: a light transmitter, which is used to emit light to the finger of the person to be tested; a light receiver, which is used to receive the light emitted by the light transmitter and interacts with the finger of the person to be tested, so as to obtain a data signal related to at least one physiological characteristic of the person to be tested; a signal transmission component, which is connected to the light receiver and is used to transmit the data signal obtained by the light receiver to an external processing device; a clamping component, which includes a shell and a finger pad adapted to the shell, and the light transmitter and the light receiver are accommodated in the clamping component, and the shell includes at least a first shell and a second shell, the first shell and the second shell are rotatably connected to form a clamping cavity with an opening and adjustable size; the finger pad is arranged on the inner surface of the clamping cavity, and the finger pad is adapted to the size of the finger by adjusting the size of the clamping cavity; a strap, which is configured to extend along the outer surface of the clamping component and is used to removably fix the clamping component to the finger. The blood oxygen sensor provided in this embodiment is arranged by rotating and connecting the first shell and the second shell of the clamping assembly, so that a clamping cavity with an opening and adjustable size is formed between the first shell and the second shell. A finger pad is arranged in the clamping cavity to provide clamping support for the finger, and as the size of the clamping cavity is adjusted, the finger pad is adapted to the size of the finger, thereby clamping fingers of different sizes placed in the clamping cavity, thereby achieving accurate measurement of the blood oxygen saturation data of the person to be measured.

[0036] Some implementation modes of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0037] Please refer to Figure 1-4 A blood oxygen probe 10 provided in one embodiment of the present application is used to be fastened to the finger of a person to be tested to detect blood oxygen saturation. The blood oxygen probe 10 includes a light transmitter 11, a light receiver 12, a signal transmission component 13 and a clamping component 14.

[0038] Specifically, the light transmitter 11 is used to transmit light to the finger of the person to be tested. The light receiver 12 is used to receive the light emitted by the light transmitter 11 and after interacting with the finger of the person to be tested, so as to obtain data related to at least one physiological characteristic of the person to be tested, and the data related to the physiological characteristic includes but is not limited to blood oxygen saturation.

[0039] Taking the data related to the physiological characteristics obtained as blood oxygen saturation as an example, the light transmitter 11 is provided with two light-emitting elements, one light-emitting element emits infrared light to the finger, and the other emits red light to the finger. Since oxygenated hemoglobin and non-oxygenated hemoglobin have different absorption rates to infrared light and red light, the light receiver 12 receives the light emitted by the light transmitter 11 and passing through the finger of the person to be tested, and finally calculates the ratio of the two types of hemoglobin according to the different absorption rates of oxygenated hemoglobin and non-oxygenated hemoglobin to infrared light and red light, thereby calculating the blood oxygen saturation of the human body.

[0040] The signal transmission component 13 is connected to the optical receiver 12, and is used to output the data signal obtained by the optical receiver 12 to the external processing device 20, so that the relevant test results can be displayed through the external processing device 20, so that the monitoring personnel or the person to be tested can be informed of the blood oxygen saturation test status in time, wherein the external processing device 20 can be a wearable external processing device, such as a processing device worn on the arm, waist, etc. of the person to be tested, or a non-wearable external processing device, such as a processing device set in a monitoring center or a monitoring room.

[0041] In some embodiments, when the signal transmission component 13 is a wireless signal component, the signal transmission component 13 includes but is not limited to a wifi signal transmission component, a bluetooth signal transmission component, and a ZigBee signal transmission component.

[0042] In some embodiments, when the signal transmission component 13 is a wired signal component, the signal transmission component 13 includes a data line 131, and the data line 131 is electrically connected to the optical transmitter 11 and the optical receiver 12 to provide electrical energy and transmission control signals to the optical transmitter 11 through the data line 131, and at the same time output the data signal generated by the optical receiver 12 to the external processing device 20.

[0043] In some embodiments, when the signal transmission component 13 is a wired signal component, the signal transmission component 13 includes a data line 131 and an adapter 132, the adapter 132 is electrically connected to the optical transmitter 11 and the optical receiver 12, the data line 131 is provided with a plug connector 1311 adapted to the adapter 132, the plug connector 1311 and the adapter 132 are detachably plugged, thereby realizing a detachable connection between the data line 131 and the adapter 132, wherein the interface types of the adapter 132 and the plug connector 1311 are not limited herein, and only need to be able to realize the transmission of signals between the external processing device 20 and optical sensors such as the optical transmitter 11 and the optical receiver 12, such as Figure 3 shown.

[0044] The clamping assembly 14 includes a housing 24 and a finger pad 34 adapted to the housing 24, and the optical transmitter 11 and the optical receiver 12 are accommodated in the clamping assembly 14. The housing 24 includes at least a first shell 241 and a second shell 242, and the first shell 241 and the second shell 242 are rotatably connected to form a clamping cavity 15 with an opening and adjustable size.

[0045] The finger pad 34 includes a first clamping portion 341, a second clamping portion 342, and a finger pad portion 343 disposed between the first clamping portion 341 and the second clamping portion 342. The finger pad portion 343 is used to provide support for the fingertips of the fingers placed in the clamping cavity 15, and as the size of the clamping cavity is adjusted, the distance between the first clamping portion 341 and the second clamping portion 342 changes, so that it can adapt to clamp fingers of different sizes.

[0046] That is, the finger pad 34 is arranged on the inner surface of the clamping cavity 15. When the finger of the person to be tested is placed in the clamping cavity 15, the finger pad portion 343 is used to provide support for the fingertips of the fingers placed in the clamping cavity 15, and the size of the clamping cavity 15 can be adjusted under the action of external force. By adjusting the size of the clamping cavity 15, the finger pad 34 is adapted to the size of the finger placed in the clamping cavity 15, so that the finger placed in the clamping cavity 15 can be tightly clamped.

[0047] By providing a finger pad 34, the finger pad portion 343 of the finger pad 34 is utilized to provide support for the fingertips of the fingers placed in the clamping cavity 15, and as the size of the clamping cavity 15 is adjusted, the distance between the first clamping portion 341 and the second clamping portion 342 changes, thereby clamping fingers of different sizes placed in the clamping cavity 15, thereby achieving accurate measurement of the blood oxygen saturation data of the person to be measured.

[0048] In some embodiments, the shell 24 is a rigid shell, and the finger pad 34 is a flexible finger pad. The flexible finger pad can provide flexible clamping and support for the finger during the blood oxygen saturation measurement, effectively improving the comfort of the measurement process. At the same time, when external force is applied to the flexible finger pad through the rigid shell, it can ensure that the flexible finger pad can be evenly stressed and fit well with the finger of the person to be measured, thereby increasing accuracy and reliability while ensuring comfort.

[0049] In some embodiments, the outer surface of the housing 24 is arc-shaped, that is, the outer surface of the housing 24 is an arc-shaped surface. In some embodiments, the connection and cooperation mode between the finger pad 34 and the housing 24 may be that the pad 34 is fixed to the housing 24 by adhesive, ultrasonic fusion, etc., so that after the clamping assembly 14 is clamped on the finger of the person to be tested, there will be no relative displacement between the finger pad 34 and the housing 24, and thus the light emitter 11 and the light receiver 12 accommodated in the clamping assembly 14 will not be relatively displaced with the finger of the person to be tested after the clamping assembly 14 is relatively fixed with the finger of the person to be tested, so as to ensure the tightness of the contact between the optical sensors such as the light emitter 11 and the light receiver 12 and the finger of the person to be tested, so that the detection result of the blood oxygen saturation is more accurate. At the same time, the finger pad 34 is fixed on the housing 24, and the two will not be displaced during use, which reduces the damage of the optical sensors such as the light emitter 11 and the light receiver 12 due to displacement, and even the risk of inaccurate measurement, thereby improving the reliability of the optical sensor.

[0050] It can be understood that in some embodiments, the connection and cooperation mode between the finger pad 34 and the shell 24 can be that the pad 34 and the shell 24 are integrally formed by mold injection, so that the fixed connection effect between the finger pad 34 and the shell 24 is better.

[0051] In some embodiments, at least the inner surface of the finger pad 343 of the first clamping portion 341, the second clamping portion 342, and the finger pad 343 of the finger pad 34 forms a plane, or is substantially a plane. By forming at least the inner surface of the finger pad 343 into a plane, when the finger of the person to be tested is placed on the finger pad 343, the finger pad 343 provides surface support to the finger, so that the first clamping portion 341 and the second clamping portion 342 can better support the opposite sides of the finger, thereby ensuring the tightness of the optical sensors such as the light transmitter 11 and the light receiver 12 and the finger of the person to be tested, so that the detection result of blood oxygen saturation is more accurate.

[0052] In some embodiments, the inner surfaces of the first clamping portion 341, the second clamping portion 342 and the finger pad portion 343 of the finger pad 34 all form planes, so that when the clamping assembly 14 is put on the finger of the person to be tested, displacement is not easy to occur between the finger and the blood oxygen probe 10, thereby ensuring that the blood oxygen saturation detection result is more accurate.

[0053] like Figure 4As shown, in one usage scenario, by adjusting the size of the clamping cavity 15 formed by the clamping assembly 14, the blood oxygen probe 10 can be mounted on the side of the finger of the person to be tested close to the palm, that is, the root of the finger. Since the tested part at the root of the finger is two blood vessels located on the left and right opposite sides of the finger, even if the blood oxygen probe 10 is slightly displaced relative to the finger, it will affect the accuracy of the blood oxygen saturation detection result. Therefore, the contact position between the blood oxygen probe 10 and the finger to be tested part is required to be high. By making the inner surfaces of the first clamping part 341, the second clamping part 342 and the finger pad part 343 into a three-plane structure, it can be ensured that when the clamping assembly 14 is mounted on the finger of the person to be tested, it is not easy to displace between the finger and the blood oxygen probe 10, thereby ensuring that the blood oxygen saturation detection result is more accurate.

[0054] In some embodiments, the finger pad portion 343 is provided with a protrusion 3431 protruding in the direction of the opening formed by the clamping cavity 15 and having an adjustable size. The surface 3434 of the protrusion 3431 corresponding to the opening of the clamping cavity 15 is flat, thereby providing a better supporting effect on the fingertips of the fingers placed in the clamping cavity 15. By providing the protrusion 3431, the finger pad portion 343 can provide a better supporting effect on the fingertips of the fingers placed in the clamping cavity 15, and at the same time, the first clamping portion 341 and the second clamping portion 342 can cooperate with the finger pad portion 343 to provide a better clamping effect on the opposite sides of the fingertips.

[0055] In some embodiments, the protrusion 3431 is a flexible protrusion, which provides flexible support for the finger and can effectively improve the comfort of the measurement process.

[0056] In some embodiments, the light emitter 11 and the light receiver 12 are housed in the clamping assembly 14 in such a manner that both the light emitter 11 and the light receiver 12 are fixed to the housing 24, and a first opening 3411 corresponding to the light emitter 11 and a second opening 3412 corresponding to the light receiver are provided on the finger pad 34, so that the light emitted by the light emitter 11 can interact with the finger of the person to be tested through the first opening 3411, and the light receiver 12 receives the light emitted by the light emitter 11 after interacting with the finger of the person to be tested through the second opening 3412, thereby obtaining data related to at least one physiological characteristic of the person to be tested.

[0057] See also Figure 5A-5B Specifically, a first mounting portion 2413 is provided in the first housing 241 , and the optical transmitter 11 is fixed to the housing 24 via the first mounting portion 2413 . A second mounting portion 2423 is provided in the second housing 242 , and the optical receiver 12 is fixed to the housing 24 via the second mounting portion 2423 .

[0058] In some embodiments, the light emitter 11 and the light receiver 12 can be housed in the clamping assembly 14 in a form that the light emitter 11 and the light receiver 12 are both fixed to the finger pad 34, and a first opening 3411 corresponding to the light emitter 11 and a second opening 3412 corresponding to the light receiver are provided on the finger pad 34, so that the light emitted by the light emitter 11 can interact with the finger of the person to be tested through the first opening 3411, and the light receiver 12 receives the light emitted by the light emitter 11 after interacting with the finger of the person to be tested through the second opening 3412, thereby obtaining data related to at least one physiological characteristic of the person to be tested.

[0059] The light emitter 11 and the light receiver 12 are housed in the clamping assembly 14 in a form that either one of the light emitter 11 and the light receiver 12 is fixed to the housing 24, and the other is fixed to the finger pad 34, and a first opening 3411 corresponding to the light emitter 11 and a second opening 3412 corresponding to the light receiver are provided on the finger pad 34, so that the light emitted by the light emitter 11 can interact with the finger of the person to be tested through the first opening 3411, and the light receiver 12 receives the light emitted by the light emitter 11 after interacting with the finger of the person to be tested through the second opening 3412, thereby obtaining data related to at least one physiological characteristic of the person to be tested.

[0060] See also Figure 6 In some embodiments, the first shell 241 and the second shell 242 can be rotatably connected in such a manner that the clamping assembly 14 is provided with a first rotating shaft 243, and the first shell 241 and the second shell 242 are rotatably connected via the first rotating shaft 243. Specifically, a first through hole 2411 is provided at one end of the first shell 241 that matches with the second shell 242, and a second through hole 2421 is provided at one end of the second shell 242 that matches with the first shell 241. The first rotating shaft 243 passes through the first through hole 2411 and the second through hole 2421, so that the first shell 241 and the second shell 242 can rotate relative to each other with the first rotating shaft 243 as the rotating shaft, thereby forming a clamping cavity 15 with an opening and adjustable size.

[0061] See also Figure 7 In some embodiments, the first housing 241 and the second housing 242 can be rotatably connected in such a manner that the first housing 241 is provided with a first rotating member 2412, and the second housing 242 is provided with a second rotating member 2422, and the first rotating member 2412 and the second rotating member 2422 are rotatably matched. Among them, either the first rotating member 2412 or the second rotating member 2422 is a rotating shaft, and the other is a bearing or an axial hole matched with the rotating shaft, and the first housing 241 and the second housing 242 are rotatably connected through the axial hole matching, so as to form a clamping cavity 15 with an opening and adjustable size.

[0062] See also Figure 8 In some embodiments, the first shell 241 includes a first body 2414 and a second body 2415 that are rotatably connected, and the second body 2415 is rotatably connected to the second shell 242. The first body 2414 is provided corresponding to the first clamping portion 341, and the second body 2415 is provided corresponding to the finger pad portion 343. When the finger of the person to be tested is placed in the clamping cavity 15, the finger pad portion 343 of the finger pad 34 provides support for the finger. Under the action of external force, the first body 2414 rotates relative to the second body 2415, and the second shell 242 rotates relative to the second body 2415, so that the distance between the first clamping portion 341 and the second clamping portion 342 of the finger pad 34 gradually decreases, thereby clamping the opposite sides of the fingertips of the finger placed in the clamping cavity 15, so that the clamping effect for fingers of different sizes is better.

[0063] The first body 2414 and the second body 2415 may be rotatably connected in such a manner that the first shell 241 further includes a second rotating shaft 2416 , and the first body 2414 and the second body 2415 are rotatably connected via the second rotating shaft 2416 .

[0064] In some embodiments, the first body 2414 and the second body 2415 may be rotatably connected in such a manner that the first body 2414 is provided with a first rotating member 2417, and the second body 2415 is provided with a second rotating member 2418, and the first rotating member 2417 and the second rotating member 2418 are rotatably matched. Wherein, either the first rotating member 2417 or the second rotating member 2418 is a rotating shaft, and the other is a bearing or an axial hole matched with the rotating shaft, such as Fig. 9 shown.

[0065] See also Figure 10-11 In some embodiments, the blood oxygen probe 10 further includes a strap 17 or the blood oxygen probe 10 is adapted to the strap 17, and the strap 17 is configured to extend along the outer surface of the clamping assembly 14, and is used to removably fix the clamping assembly 14 to the finger of the person to be tested. Specifically, by wrapping the strap 17 around the outer surface of the first shell 241 and the second shell 242, the strap 17 is extended along the outer surface of the first shell 241 and the second shell 242 of the clamping assembly 14, so that the clamping force between the first shell 241 and the second shell 242 of the clamping assembly 14 can be adjusted by the strap 17, thereby clamping fingers of different sizes.

[0066] In some embodiments, the strap 17 includes a winding section 171 and a fixed section 172 connected to the winding section 171. Specifically, the fixed section 172 is formed by extending from one end of the winding section. When the size of the clamping cavity 15 is adjusted by the strap 17, the winding section 171 is wound around the outer surface of the clamping assembly 14, and the fixed section 172 is at least partially wound around the winding section 171.

[0067] Exemplarily, when the strap 17 is used to adjust the clamping force of the clamping assembly 14 of the blood oxygen probe 10, the winding section 171 is first wound around the outer surface of the shell 24 of the clamping assembly 14, and then the fixed section 172 is at least partially wound around the winding section 171, so that the strap 17 at least covers the outer surface of the shell 24 away from the finger pad 34. The clamping force of the clamping assembly 14 on the finger can be adjusted accordingly according to the adjustment of the winding position of the winding section 171 and the fixed section 172, thereby improving the accuracy of the blood oxygen saturation measurement and the comfort of the measurement process.

[0068] like Fig.11 As shown, in some embodiments, the winding section 171 includes a first surface 1711 and a second surface 1712 that are arranged opposite to each other. When the winding section 171 is wound around the outer surface of the housing 24 of the clamping assembly 14, the first surface 1711 is in contact with the outer surface of the housing 24 of the clamping assembly 14. The fixing section 172 includes a third surface 1721 that is located on the same surface as the first surface 211. When the fixing section 172 is wound around the winding section 171, the third surface 1721 is in contact with the second surface 1712. The winding section 171 and the fixing section 172 are integrally formed with silicone. The silicone-made bandage 17 can not only improve softness, but also can be reused many times to avoid waste.

[0069] It is understood that, in some embodiments, one end of the winding section 171 of the strap 17 can be fixed to the first shell 241 or the second shell 242 of the housing 24 of the clamping assembly 14. It should be noted that, in other embodiments, the strap 17 can also be made of materials such as cloth, and can be replaced during use to avoid cross infection.

[0070] In some embodiments, the binding strap 17 is further provided with a fixing member 173, and the fixing member 173 is used to detachably lock the fixing section 172 on the winding section 171. Specifically, the fixing member 173 includes a first fitting member 1731 and a second fitting member 1732 that can be detachably attached. Either the first fitting member 1731 or the second fitting member 1732 is disposed on the second surface 1712 of the winding section 171, and the other is disposed on the third surface 1721 of the fixing section 172. Through the detachable attachment of the first fitting member 1731 and the second fitting member 1732, the winding position of the winding section 171 and the fixing section 172 can be effectively adjusted.

[0071] Exemplarily, the fixing member 173 may be a magnetic fixing member, that is, the first fitting member 1731 and the second fitting member 1732 are magnetic patches, and are attached to each other by magnetic attraction.

[0072] It can be understood that the fixing member 173 can be a Velcro, and one of the first fitting member 1731 and the second fitting member 1732 is a fleecy side of the Velcro, and the other is a hook side, wherein the fleecy side of the Velcro is a fine and soft fiber side, and the hook side is provided with a harder surface with barbs, and when the fleecy side and the hook side are fitted together, the first fitting member 1731 and the second fitting member 1732 can be detachably connected.

[0073] In some embodiments, a limiting member 16 is provided on the outer surface of the shell 24, and the limiting member 16 is provided on the outer surface of at least one of the first shell 241 and the second shell 242, and is used to form a limiting cooperation with the strap 17 to limit the strap 17 when the clamping force between the first shell 241 and the second shell 242 is adjusted by the strap 17.

[0074] Specifically, a limiting portion 174 adapted to the limiting member 16 is provided on the strap 17. When the limiting portion 174 of the strap 17 forms a limiting match with the limiting member 16 to limit the displacement of the strap 17 and the limiting member 16, the strap 17 can better adjust the clamping force between the first shell 241 and the second shell 242.

[0075] Exemplarily, the limiting portion 174 includes a limiting hole 1741 and a groove 1742 connected to the limiting hole 1741. When the limiting member 16 forms a limiting fit with the limiting portion 174, the limiting member 16 passes through the limiting hole 1741 and is received in the groove 1742. The groove 1742 can be a receiving groove or a limiting groove. The groove 1742 can effectively receive the limiting member 16 or form a further limiting fit for the limiting member 16, such as Fig.10 shown.

[0076] It can be understood that the limiting member 16 can be a limiting groove, a limiting hole, or a limiting protrusion, and the shape of the limiting groove, limiting hole, or limiting protrusion can be a polygon, an ellipse, or an irregular shape, and the shape of the limiting portion 174 is adapted to the limiting member 16. For example, if the limiting groove is a square limiting groove, the limiting protrusion is a square limiting protrusion adapted to the direction limiting groove.

[0077] When the limiting member 16 is a limiting protrusion, the limiting member 16 can be integrally formed with the housing 24, or can be detachably connected to the housing 24 by means of threads, buckles, interference fit, etc. Fig.12 shown.

[0078] In some embodiments, the limiting portion 174 includes a limiting hole 1741 and a limiting groove 1743 connected to the limiting hole 1741. When the limiting member 16 forms a limiting fit with the limiting portion 174, the limiting member 16 passes through the limiting hole 1741 and forms a limiting fit with the limiting hole 1741. The limiting groove 1743 wraps around the outer surface of the housing 24 on both sides. Fig.13 shown.

[0079] By setting a limit piece 16 on the shell 24, when the clamping force between the first shell 241 and the second shell 242 is adjusted by the strap 17, the limit piece 16 and the strap 17 are used to form a limit fit to prevent the strap 17 from moving relative to the shell 24, thereby effectively improving the accuracy of blood oxygen saturation measurement.

[0080] In some embodiments, the strap 17 is preformed into an arc shape that matches the outer surface of the clamping assembly 14, that is, the winding section 171 of the strap 17 is at least partially in an arc shape that matches the outer surface of the shell 24, so that the strap 17 is more adaptable to the clamping assembly 14, thereby making the fit between the strap 17 and the clamping assembly 14 better.

[0081] It is understood that in some embodiments, the preform of the strap 17 can also be non-arc-shaped, as long as the strap 17 can be wrapped around the outer surface of the clamping assembly 14 and can apply force to the clamping assembly 14 to adjust the size of the clamping cavity 15. Among them, the non-arc-shaped structure includes but is not limited to a flat type.

[0082] It should be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0083] It should also be understood that the term "and / or" used in the specification of this application and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, including these combinations. It should be noted that, in this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "including a..." does not exclude the presence of other identical elements in the process, method, article or system including the element.

[0084] The serial numbers of the embodiments of the present application are for description only and do not represent the advantages and disadvantages of the embodiments. The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A blood oxygen sensor, used to be fastened to the finger of a person to be tested to detect blood oxygen saturation, characterized in that: The blood oxygen sensor comprises: A light emitter, used for emitting light to the finger of the person to be tested; A light receiver, used to receive the light emitted by the light transmitter and after interacting with the finger of the person to be tested, so as to obtain a data signal related to at least one physiological characteristic of the person to be tested; a signal transmission component, the signal transmission component being connected to the optical receiver and being used for transmitting the data signal obtained by the optical receiver to an external processing device; A clamping assembly, the clamping assembly comprising a housing and a finger pad adapted to the housing, the optical transmitter and the optical receiver being accommodated in the clamping assembly, the housing comprising at least a first shell and a second shell, the first shell and the second shell both having a connecting end and a free end, wherein the connecting end of the first shell and the connecting end of the second shell are rotatably connected, and after the connecting end of the first shell and the connecting end of the second shell are rotatably connected, there is a spacing between the free end of the first shell and the free end of the second shell, so that the first shell and the second shell are adapted to form a clamping cavity having three adjacent openings and an adjustable size; The finger pad includes a first clamping portion, a second clamping portion, and a finger pad portion arranged between the first clamping portion and the second clamping portion; the finger pad portion is arranged corresponding to the opening of the clamping cavity, and is used to provide support for the fingertip of the finger placed in the clamping cavity, and as the size of the clamping cavity is adjusted, the distance between the first clamping portion and the second clamping portion changes.

2. The blood oxygen sensor according to claim 1, characterized in that: The optical transmitter and the optical receiver are fixed to the housing, and the finger pad is provided with openings corresponding to the optical receiver and the optical transmitter.

3. The blood oxygen sensor according to claim 1, characterized in that: The light emitter and the light receiver are fixed to the finger pad, and the finger pad is provided with openings corresponding to the light receiver and the light emitter.

4. The blood oxygen sensor according to any one of claims 1 to 3, characterized in that: At least the inner surface of the finger pad among the first clamping portion, the second clamping portion and the finger pad forms a plane; or the inner surfaces of the first clamping portion, the second clamping portion and the finger pad all form a plane.

5. The blood oxygen sensor according to any one of claims 1 to 3, characterized in that: The finger pad is provided with a protrusion protruding toward the opening, and the surface of the protrusion corresponding to the opening is a plane.

6. The blood oxygen sensor according to claim 5, characterized in that: The protrusion is a flexible protrusion.

7. The blood oxygen sensor according to any one of claims 1 to 3, characterized in that: The shell is a rigid shell, and the finger pad is a flexible finger pad.

8. The blood oxygen sensor according to any one of claims 1 to 3, characterized in that: The finger pad is fixed to the housing, or the finger pad is integrally formed with the housing.

9. The blood oxygen sensor according to any one of claims 1 to 3, characterized in that: The first shell is provided with a first rotating member, the second shell is provided with a second rotating member, and the first rotating member and the second rotating member are rotationally matched.

10. The blood oxygen sensor according to claim 9, characterized in that: Either one of the first rotating member and the second rotating member is a rotating shaft, and the other one is a bearing or an axial hole matched with the rotating shaft.

11. The blood oxygen sensor according to any one of claims 1 to 3, characterized in that: The clamping assembly further includes a first rotating shaft, and the first shell and the second shell are rotatably connected via the first rotating shaft.

12. The blood oxygen sensor according to claim 1, characterized in that: The first shell includes a first body and a second body which are rotatably connected, and the second body is rotatably connected to the second shell.

13. The blood oxygen sensor according to claim 12, characterized in that: The first shell further includes a second rotating shaft, and the first body and the second body are rotatably connected via the second rotating shaft.

14. The blood oxygen sensor according to claim 12, characterized in that: The first body is provided with a first rotating member, and the second body is provided with a second rotating member, and the first rotating member and the second rotating member are rotationally matched.

15. The blood oxygen sensor according to claim 14, characterized in that: Either one of the first rotating member and the second rotating member is a rotating shaft, and the other one is a bearing or an axial hole matched with the rotating shaft.

16. The blood oxygen sensor according to any one of claims 1 to 3, characterized in that: The signal transmission component is a wireless signal transmission component.

17. The blood oxygen sensor according to any one of claims 1 to 3, characterized in that: The signal transmission assembly includes a data line electrically connected to the optical receiver and the optical transmitter.

18. The blood oxygen sensor according to any one of claims 1 to 3, characterized in that: A limiting member is disposed on the outer surface of the shell, and the limiting member is used to form a limiting cooperation with the strap when the first shell and the second shell adjust the clamping force between the first shell and the second shell through the strap to limit the strap.

19. The blood oxygen sensor according to claim 18, characterized in that: The binding belt comprises a winding section and a fixing section connected to the winding section, the winding section is wound around the outer surface of the clamping assembly, and the fixing section is at least partially wound around the winding section.

20. The blood oxygen sensor according to claim 19, characterized in that: The binding belt further comprises a fixing member, and the fixing member is used to detachably lock the fixing section onto the winding section.

21. The blood oxygen sensor according to claim 20, characterized in that: The winding section is fixedly connected to the first shell or the second shell.

22. The blood oxygen sensor according to claim 18, characterized in that: The binding strap is provided with a limiting portion, and when the binding strap is wound around the outer surface of the shell, the limiting portion and the limiting member form a limiting fit.

23. The blood oxygen sensor according to claim 22, characterized in that: The limiting portion includes a limiting hole and a groove communicating with the limiting hole; When the limiting member and the limiting portion form a limiting fit, the limiting member passes through the limiting hole and is received in the groove.

24. The blood oxygen sensor according to claim 22, characterized in that: The limiting portion includes a limiting hole and a limiting groove communicating with the limiting hole; When the limiting member forms a limiting fit with the limiting portion, the limiting member passes through the limiting hole to form a limiting fit with the limiting hole, and the limiting groove wraps around a portion of the outer surface on opposite sides of the shell.

25. The blood oxygen sensor according to claim 18, characterized in that: The binding strap is preformed into an arc shape that matches the outer surface shape of the clamping assembly.

26. A blood oxygen sensor, used to be fastened to the finger of a person to be tested to detect blood oxygen saturation, characterized in that: The blood oxygen sensor comprises: A light emitter, used for emitting light to the finger of the person to be tested; A light receiver, used to receive the light emitted by the light transmitter and after interacting with the finger of the person to be tested, so as to obtain a data signal related to at least one physiological characteristic of the person to be tested; a signal transmission component, the signal transmission component being connected to the optical receiver and being used for transmitting the data signal obtained by the optical receiver to an external processing device; A clamping assembly, the clamping assembly comprising a shell and a finger pad matched with the shell, the optical transmitter and the optical receiver being accommodated in the clamping assembly, the shell comprising at least a first shell and a second shell, the first shell and the second shell both having a connecting end and a free end, wherein the connecting end of the first shell and the connecting end of the second shell are rotatably connected, and after the connecting end of the first shell and the connecting end of the second shell are rotatably connected, there is a spacing between the free end of the first shell and the free end of the second shell, so that the first shell and the second shell are matched to form a clamping cavity with three adjacent openings and adjustable size; the finger pad is arranged on the inner surface of the clamping cavity, the finger pad portion of the finger pad is arranged corresponding to the opening of the clamping cavity, and is used to provide support for the fingertip of the finger placed in the clamping cavity, and the finger pad is matched with the size of the finger by adjusting the size of the clamping cavity; A strap is configured to extend along an outer surface of the clamp assembly for removably securing the clamp assembly to the finger.

27. The blood oxygen sensor according to claim 26, characterized in that: The strap at least covers the outer surface of the housing at a side away from the finger pad.

28. The blood oxygen sensor according to claim 26, characterized in that: The binding strap includes a winding section and a fixing section extending from one end of the winding section, the winding section is connected to one end of the first shell close to the second shell or to one end of the second shell close to the first shell, and the fixing section is at least partially wound around the winding section.

29. The blood oxygen sensor according to any one of claims 26 to 28, characterized in that: The shell is a rigid shell, and the finger pad is a flexible finger pad.

30. The blood oxygen sensor according to any one of claims 26 to 28, characterized in that: The finger pad is fixed to the housing, or the finger pad is integrally formed with the housing.

31. The blood oxygen sensor according to any one of claims 26 to 28, characterized in that: A limiting member is disposed on the outer surface of the shell, and the limiting member is used to form a limiting cooperation with the strap when the first shell and the second shell adjust the clamping force between the first shell and the second shell through the strap to limit the strap.

32. The blood oxygen sensor according to any one of claims 26 to 28, characterized in that: The binding belt comprises a winding section and a fixing section connected to the winding section, the winding section is wound around the outer surface of the clamping assembly, and the fixing section is at least partially wound around the winding section.

33. The blood oxygen sensor according to claim 32, characterized in that: The binding belt further comprises a fixing member, and the fixing member is used to detachably lock the fixing section onto the winding section.

34. The blood oxygen sensor according to claim 31, characterized in that: The binding strap is provided with a limiting portion, and when the binding strap is wound around the outer surface of the shell, the limiting portion and the limiting member form a limiting fit.

35. The blood oxygen sensor according to claim 34, characterized in that: The limiting portion includes a limiting hole and a groove communicating with the limiting hole; When the limiting member and the limiting portion form a limiting fit, the limiting member passes through the limiting hole and is received in the groove.

36. The blood oxygen sensor according to claim 34, characterized in that: The limiting portion includes a limiting hole and a limiting groove communicating with the limiting hole; When the limiting member forms a limiting fit with the limiting portion, the limiting member passes through the limiting hole to form a limiting fit with the limiting hole, and the limiting groove wraps around a portion of the outer surface on opposite sides of the shell.

37. The blood oxygen sensor according to any one of claims 26 to 28, characterized in that: The binding strap is preformed into an arc shape that matches the outer surface shape of the clamping assembly.

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