A nerve conduction and tactile detection pen for auxiliary diagnosis and treatment of diabetic foot

Abstract

The present invention provides a nerve conduction and tactile detection pen for auxiliary diagnosis and treatment of diabetic foot, comprising an upper shell of a main body, a lower shell of a main body, an electrode assembly and a sensor assembly; the upper shell of the main body and the lower shell of the main body can be combined into a cylindrical detection pen body; the sensor assembly comprises a pressure sensor assembly and a nerve sensor assembly; the nerve sensor assembly extends to the outside of the detection pen body through a first side opening; the electrode assembly comprises a main electrode and an auxiliary electrode assembly; the main electrode is connected to the pressure sensor assembly through a main electrode connecting assembly; the main electrode can extend out of the detection pen body through an electrode opening; the auxiliary electrode assembly extends to the outside of the detection pen body through a second side opening. The present invention can simplify the traditional nerve conduction velocity detection equipment into an electrode assembly and a sensor assembly, so that the nerve conduction velocity and tactile pain detection can be completed by a detection pen.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a nerve conduction and tactile detection pen used for auxiliary diagnosis and treatment of diabetic foot. Background Art

[0002] Diabetic foot ulcer infection usually refers to infection, ulceration or destruction of tissues beyond the ankle of diabetic patients. It is most common in diabetic patients with peripheral neuropathy and also often occurs in diabetic patients with peripheral arterial disease. If the infection is not discovered and treated early, it may spread from the skin and soft tissue to deep structures such as bones and joints.

[0003] Diabetic foot ulcers are not uncommon among diabetic patients and are one of the most serious complications of diabetes. According to data from the International Diabetes Federation, 537 million people will have diabetes in 2021, accounting for about 10% of the world's population, a figure that has increased by 1.2% in the past five years. It is predicted that by 2045, this number will increase to 783 million. The prevalence of diabetes in people over 18 years old in China is 11.2%. 10% to 15% of diabetic patients will develop foot ulcers in their lifetime, affecting an estimated 9.1 million to 26.1 million people each year, with a global prevalence of 6.3%.

[0004] In a large cohort study of patients with diabetic foot ulcers and diabetes in China, during the one-year follow-up, the annual ulcer incidence rate of diabetic patients was 8.1%, the annual new ulcer incidence rate of diabetic foot ulcer patients was 31.6%, the amputation rate of patients was 5.1%, and the annual mortality rates of diabetic patients and diabetic foot ulcer patients were 2.8% and 14.4%, respectively. The complexity of the treatment of patients with diabetic foot ulcers may lead to prolonged hospitalization, which imposes a heavy economic burden on the medical and health system, and its economic burden ranks tenth among all diseases. In order to timely detect potential diabetic foot problems and reduce the medical and economic burden of patients' families and the country, the medical and health departments generally conduct targeted health education on diabetic foot for patients through screening. At present, there are a variety of examination methods for the early diagnosis of diabetic peripheral neuropathy (DPN) that can provide a reliable basis for its diagnosis.

[0005] The two main testing methods currently used in hospitals are the simplified sensory test (EST) and the nerve conduction velocity (NCV) test. These two tests have the following characteristics.

[0006] Nerve conduction velocity (NCV) examination has the advantages of good quantification, reliability and objectivity and is widely used, but its disadvantages are:

[0007] 1. In the examination of diabetic peripheral neuropathy (DPN), the following situations exist. For example, in diabetic patients with completely normal NCV, EST has a certain abnormal rate; vice versa. The reason for this situation is that NCV can be used to diagnose DPN early in clinical practice. However, it only reflects the functional status of large myelinated nerve fibers and is not sensitive to identifying small nerve fiber lesions.

[0008] 2. This inspection method generally requires more expensive equipment, is time-consuming, and has relatively high costs.

[0009] The simplified sensory test (EST) has a variety of sensory measurement modes. It is painless, non-invasive and highly sensitive. Compared with the NCV test, it can detect the pathological status of large and small nerve fibers of the myelin sheath. It is especially simple, time-saving and low-cost. However, its disadvantages are:

[0010] 1. Due to the fact that part of the inspection standards for pain and tactile tests in EST examinations are subjective judgments, the accuracy of EST examinations needs to be improved. For example, in pain examinations, doctors need to hold a pressure needle to press the patient's skin, and the force of pressing the skin needs to reach a state where the skin sinks. In tactile examinations, doctors also need to hold nylon threads to press the patient's foot skin. The standard for the pressure is to make the nylon thread present a "C" shape. This operating standard is due to the different hardness of the nylon thread and the pressure needle. Doctors may find it difficult to accurately control the force during the pressure application process, thereby affecting the accuracy of the screening results; 2. During the use of the old-fashioned tools currently used for this examination, doctors need to operate two needles of different weights separately. The operation process is cumbersome and time-consuming; 3. In addition, the feedback of the doctor's measurement results mainly comes from the patient's active response. In fact, there are some objective or other influencing factors in this test feedback method that affect the test results. Summary of the invention

[0011] The present invention provides a nerve conduction and tactile detection pen for auxiliary diagnosis and treatment of diabetic foot, which can simplify the traditional nerve conduction velocity detection equipment into a modular electrode assembly and a sensor assembly, so that nerve conduction velocity and tactile pain detection can be completed with a detection pen, thereby overcoming the problems existing in the above-mentioned prior art.

[0012] The technical solution of the present invention to solve the above technical problems is as follows:

[0013] In a first aspect, the present invention provides a nerve conduction and tactile detection pen for auxiliary diagnosis and treatment of diabetic foot, comprising an upper shell of a main body, a lower shell of a main body, an electrode assembly and a sensor assembly;

[0014] The main body upper shell and the main body lower shell can be combined into a cylindrical detection pen main body; the detection pen main body is a hollow structure, and an electrode opening is provided at one end;

[0015] The sensor assembly includes a pressure sensor assembly and a neural sensor assembly; the pressure sensor assembly is arranged inside the detection pen body; the neural sensor assembly extends to the outside of the detection pen body through a first side opening opened on one side of the detection pen body;

[0016] The electrode assembly comprises a main electrode and an auxiliary electrode assembly; the main electrode is connected to the pressure sensor assembly via a main electrode connecting assembly; the main electrode can extend out of the detection pen body through an electrode opening; the auxiliary electrode assembly extends to the outside of the detection pen body through a second side opening opened on the other side of the first side opening on the detection pen body;

[0017] A light guide column is fixed in the electrode opening; the light guide column is a hollow structure with openings at both ends, and enables the main electrode to move therein.

[0018] In some embodiments, a push button is provided on the main body upper shell; the push button can pass through the main body upper shell and engage with the pressure sensor assembly to push the pressure sensor assembly.

[0019] In some embodiments, the pressure sensor assembly includes a pressure sensor mainboard and a pressure sensor; the push button is capable of engaging with the pressure sensor.

[0020] In some embodiments, the main electrode connecting assembly includes a first connecting member and a second connecting member; the first connecting member is used to connect the pressure sensor and the second connecting member; the second connecting member is used to connect the first connecting member and the main electrode.

[0021] In some embodiments, it also includes a main control motherboard and a battery; the main control motherboard and the battery are both installed inside the detection pen body; and motherboard connection ports are provided on both sides of the main control motherboard.

[0022] In some embodiments, the neural sensor assembly includes a first connector, a first main rod, a first elastic member, a first telescopic rod and a receptor connected in sequence; the receptor is fixed at one end of the first telescopic rod; the first main rod is an L-shaped bent rod, and the first main rod passes through the first side opening; the first connector is connected to the main control motherboard through the motherboard connection port.

[0023] In some embodiments, the auxiliary electrode assembly includes a second connecting head, a second telescopic rod, a second main rod, a second elastic member and an auxiliary electrode connected in sequence; the second main rod is an L-shaped sleeve bent rod, one end of which is a hollow structure and can be sleeved on the second telescopic rod; the second main rod passes through the second side opening; the second connecting head is connected to the main control motherboard through the motherboard connection port.

[0024] In some embodiments, a display light is also provided on the main control motherboard.

[0025] In some embodiments, the main control motherboard has a side on which the display light is disposed facing the inner wall of the main upper shell.

[0026] In some embodiments, a mainboard button is provided at one end of the main control mainboard; the mainboard button is connected to the switch button through a mainboard button opening provided at one end of the detection pen body.

[0027] The beneficial effects of this application are:

[0028] The present application provides a nerve conduction and tactile detection pen for auxiliary diagnosis and treatment of diabetic foot, which has the following beneficial effects:

[0029] 1. Accurate feedback capability: Through the pressure sensor, the present invention can achieve accurate measurement of force data and provide real-time feedback to the operator, thereby helping to improve operation accuracy and treatment effect.

[0030] 2. Intuitive light feedback: Using specific light signals to indicate the force status, operators can quickly understand the current force situation and make adjustments as needed.

[0031] 3. Convenient operability: The design of the present invention focuses on the ease of operation. Since the difference between the tactile inspection and pain inspection processes lies in the different force sizes and positions, this design can combine the tactile inspection and the pain inspection together, thereby improving the accuracy and efficiency of use while reducing the cost and difficulty of operation, so that operators can easily master the use of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the detection pen in this application;

[0033] Figure 2 This is a schematic diagram of the structure of the sensor assembly and electrode assembly of this application.

[0034] Description of reference numerals:

[0035] Neural sensor assembly-1; first connector-101; first main rod-102; first elastic member-103; first telescopic rod-104; receptor-105; auxiliary electrode assembly-2; auxiliary electrode-201; second elastic member-202; second main rod-203; second telescopic rod-204; second connector-205; push button-3; pressure sensor assembly-4; pressure sensor mainboard-401; pressure sensor-402; first connector-5; second connector-6; light guide column-7; main electrode-8; switch button-9; main control mainboard-10; mainboard button-1001; display light-1002; battery-11; charging mainboard-12; first charging contact-121; second charging contact-122; main body upper shell-13; main body lower shell-14. DETAILED DESCRIPTION

[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0037] In order to more clearly understand the above-mentioned purpose, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and examples. It is to be understood that the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The specific embodiments described herein are merely used to explain the present application, rather than to limit the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0038] It should be noted that, in this document, relational terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0039] A nerve conduction and tactile detection pen for auxiliary diagnosis and treatment of diabetic foot, combined with Figure 1 , including a main body upper shell 13, a main body lower shell 14, an electrode assembly and a sensor assembly;

[0040] The main body upper shell 13 and the main body lower shell 14 can be combined to form a cylindrical detection pen main body; the detection pen main body is a hollow structure, and an electrode opening is provided at one end.

[0041] The sensor assembly includes a pressure sensor assembly 4 and a neural sensor assembly 1; the pressure sensor assembly 4 is arranged inside the detection pen body; the neural sensor assembly 1 extends to the outside of the detection pen body through a first side opening opened on one side of the detection pen body;

[0042] The electrode assembly includes a main electrode 8 and an auxiliary electrode assembly 2; the main electrode 8 is connected to the pressure sensor assembly 4 through a main electrode connecting assembly; the main electrode 8 can extend out of the detection pen body through an electrode opening; the auxiliary electrode assembly 2 extends to the outside of the detection pen body through a second side opening opened on the other side of the first side opening on the detection pen body;

[0043] A light guide column 7 is fixed in the electrode opening; the light guide column 7 is a hollow structure with openings at both ends, and allows the main electrode 8 to move therein.

[0044] Specifically, the working principle of the detection pen structure of this solution is to simplify the nerve conduction velocity detection device into a modular electrode assembly and a sensor assembly. The nerve sensor assembly 1 and the main electrode 8 are fixed ends, and the auxiliary electrode assembly 2 is a movable end. The three ends use the spring and pressure sensor 402 in the structure to adjust the vertical position with the patient's foot nerve, and use the telescopic rod of the auxiliary stimulation electrode to adjust the lateral position with the main stimulation electrode.

[0045] In some embodiments, a push button 3 is provided on the main body upper shell 13 ; the push button 3 can pass through the main body upper shell 13 and engage with the pressure sensor assembly 4 , thereby pushing the pressure sensor assembly 4 .

[0046] In some embodiments, the pressure sensor assembly 4 includes a pressure sensor mainboard 401 and a pressure sensor 402 ; the push button 3 can be engaged with the pressure sensor 402 .

[0047] Specifically, the function of the push button 3 is to drive the pressure sensor assembly 4, thereby driving the main electrode 8, so that the main electrode 8 can extend out of the electrode opening when in use, and can be retracted into the interior of the detection pen body when not in operation, thereby protecting the main electrode 8. The push button 3 can be engaged with the pressure sensor 402, and the pressure sensor mainboard 401 is close to the pressure sensor 402, so that it can move with the push button 3.

[0048] In some embodiments, Figure 1 and Figure 2 As shown, the main electrode connection assembly includes a first connection member 5 and a second connection member 6; the first connection member 5 is used to connect the pressure sensor 402 and the second connection member 6; the second connection member 6 is used to connect the first connection member 5 and the main electrode 8.

[0049] Specifically, the first connecting member 5 and the second connecting member 6 in the main electrode connecting assembly are connected in sequence, wherein the first connecting member 5 can be set as a cylinder, and the second connecting member 6 can be set as a hollow structure, so that one end of the first connecting member 5 can be connected to the hollow part thereof, and the other end can be connected to the pressure sensor 402, and the light guide column 7 can adopt a hollow cylindrical structure, which is fixed in the electrode opening of the detection pen body, so that the second connecting member 6 connected to the main electrode 8 can pass through it, so that the main electrode 8 can be pushed by the second connecting member 6 and extend out of the electrode opening.

[0050] In some embodiments, it also includes a main control motherboard 10 and a battery 11; the main control motherboard 10 and the battery 11 are both installed inside the detection pen body; and motherboard connection ports are provided on both sides of the main control motherboard 10.

[0051] Specifically, the detection pen of this solution also includes a main control motherboard 10, which is used to receive and process the detected electrode stimulation time and force. The battery 11 is used to power each component. In addition, the motherboard connection ports set on both sides of the main control motherboard 10 can be used for connecting the neural sensor component 1 and the auxiliary electrode component 2. In addition, the battery 11 is also connected to the first charging contact 121 and the second charging contact 122 extending from the charging motherboard 12. The above two charging contacts can be fixedly arranged on the outside of the detection pen body, so as to facilitate the charging of the battery 11.

[0052] In some embodiments, the auxiliary electrode assembly 2 includes a second connector 205, a second telescopic rod 204, a second main rod 203, a second elastic member 202 and an auxiliary 2, which are connected in sequence. As shown in FIG. 2, the neural sensor assembly 1 includes a first connector 101, a first main rod 102, a first elastic member 103, a first telescopic rod 104 and a receptor 105 which are connected in sequence; the receptor 105 is fixed at one end of the first telescopic rod 104; the first main rod 102 is an L-shaped bent rod, and the first main rod 102 passes through the first side opening; the first connector 101 is connected to the main control motherboard 10 through the motherboard connection port.

[0053] The neural sensor assembly 1 in this solution specifically includes a first connector 101, a first main rod 102, a first elastic member 103, a first telescopic rod 104 and a sensor 105 which are connected in sequence. The first telescopic rod 104 can be set as a sleeve rod structure, and the sensor 105 is fixed to one end of the first telescopic rod 104, so that the position of the sensor 105 can be displaced with the first telescopic rod 104, thereby achieving an effect that the position of the sensor 105 is adjustable.

[0054] Auxiliary electrode 201; the second main rod 203 is an L-shaped sleeve bent rod, one end of which is a hollow structure and can be sleeved on the second telescopic rod 204; the second main rod 203 passes through the second side opening; the second connector 205 is connected to the main control motherboard 10 through the motherboard connection port.

[0055] Specifically, the auxiliary electrode assembly 2 includes a second connector 205, a second telescopic rod 204, a second main rod 203, a second elastic member 202 and an auxiliary electrode 201 which are connected in sequence. The second main rod 203 is an L-shaped sleeve bent rod, one end of which is a hollow structure and can be sleeved on the second telescopic rod 204, so that the second main rod 203 can be displaced in a direction perpendicular to the detection pen body, so that the position of the auxiliary electrode 201 is adjustable.

[0056] In some embodiments, a display light 1002 is also provided on the main control motherboard 10 .

[0057] Specifically, in order to intuitively display the detection result, the present solution further provides a display light 1002 on the main control motherboard 10 .

[0058] In some embodiments, the main control motherboard 10 is provided with a side of the display light 1002 facing the inner wall of the main upper shell 13 .

[0059] Specifically, in order to intuitively see the result displayed by the display light 1002, the side of the main control motherboard 10 where the display light 1002 is provided should face the inner wall of the main body upper shell 13. On this basis, the position of the main body upper shell 13 corresponding to the display light 1002 is set as a transparent observation port, and the display light 1002 can be observed through the observation port.

[0060] In some embodiments, a mainboard button 1001 is provided at one end of the main control mainboard 10; the mainboard button 1001 is connected to the switch button 9 through a mainboard button opening provided at one end of the detection pen body.

[0061] Specifically, in order to control the switch of the detection pen, this solution provides a mainboard button 1001 at one end of the main control mainboard 10; the mainboard button 1001 is connected to the switch button 9 through a mainboard button opening opened at one end of the detection pen body.

[0062] The basic operating principles of this solution are:

[0063] First, make adjustments before testing. Before starting the tactile NCV test, install the receptor 105 and the auxiliary electrode 201 on both sides of the pen body. Before adjusting the receptor 105 and the auxiliary electrode 201, you can manually push the push button 3 to drive the pressure sensor assembly 4, the first connecting member 5, the second connecting member 6, and thus push the main electrode 8 through the light guide column 7 and completely expose it from the electrode opening. Subsequently, the positions of the entire receptor 105, the main electrode 8, the auxiliary electrode 201 and the patient's skin are adjusted successively. During the adjustment process, the first telescopic rod 104 and the receptor 105 in the neural sensor assembly 1 will be subjected to pressure, thereby pushing the first elastic member 103 to change the relative position of the receptor 105 and the skin. Similarly, this method is used to adjust the relative position of the auxiliary electrode assembly 2 and the skin in sequence to adapt to the patient's nerve location.

[0064] After adjusting the positions of the receptor 105, the main electrode 8 and the auxiliary electrode 201, the switch button 9 can be long pressed to start the machine. At this time, the main board button 1001 will be pressed to send a power-on signal to the main control main board 10 to start the machine. After starting the machine, press it again. At this time, the main control main board 10 will receive the corresponding signal and energize through the circuit connection between the main control main board 10 and the receptor 105, the main electrode 8 and the auxiliary electrode 201. At this time, the auxiliary electrode 201 and the main electrode 8 start to electrically stimulate the patient's nerve after being energized, and the receptor 105 will start to receive the feedback brought by the patient's nerve after electrical stimulation, and record 2 muscle feedback points, and then measure the latency from the stimulation of the two points to the receptor 105, that is, the time required for the stimulation of the nerve to the muscle contraction, and finally transmit the data back to the main control main board 10, and then the main control main board 10 processes the data, and divides the distance between the main electrode 8 and the auxiliary electrode 201 by the latency difference between the two points to obtain the final patient's current nerve conduction velocity. After obtaining the final conduction velocity of the patient's current nerve, the main control board 10 will send a signal to the display light 1002, and control the display light 1002 to light up to display the current conduction velocity of the patient's foot nerve.

[0065] After the tactile NCV test is completed, the EST test of touch and pain can be performed simultaneously. First, the main electrode 8 is placed close to the patient's foot skin and pressed (the main electrode 8 is not powered at this time, so it can be used as a pressure contact). At this time, the patient's skin will give the main electrode 8 a reaction force and squeeze the main electrode 8 inward and push the second connector 6 and the first connector 5 until the reaction force is transmitted to the pressure sensor 402. At this time, the pressure sensor mainboard 401 will receive the reaction force exerted by the main electrode 8 pressing the patient's skin. When this force reaches the standard detection pressure of 10g / 40 for tactile detection or pain detection, the pressure sensor mainboard 401 will light up the display light 1002 on the main control mainboard 10. At this time, the light will be displayed through the light guide 7, thereby completing the tactile and pain inspection.

[0066] Those skilled in the art will appreciate that although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is meant to be within the scope of the present application and to form different embodiments.

[0067] Those skilled in the art will appreciate that the description of each embodiment has its own emphasis, and for parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0068] Although the embodiments of the present application are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations all fall within the scope defined by the attached claims. The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

[0069] The above are only specific embodiments of the present invention, but the protection scope of the present invention 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 by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A nerve conduction and tactile detection pen for auxiliary diagnosis and treatment of diabetic foot, characterized in that: It includes a main body upper shell, a main body lower shell, an electrode assembly and a sensor assembly; The main body upper shell and the main body lower shell can be combined into a cylindrical detection pen main body; the detection pen main body is a hollow structure, and an electrode opening is provided at one end; The sensor assembly includes a pressure sensor assembly and a neural sensor assembly; the pressure sensor assembly is arranged inside the detection pen body; the neural sensor assembly extends to the outside of the detection pen body through a first side opening opened on one side of the detection pen body; The electrode assembly comprises a main electrode and an auxiliary electrode assembly; the main electrode is connected to the pressure sensor assembly via a main electrode connecting assembly; the main electrode can extend out of the detection pen body through an electrode opening; the auxiliary electrode assembly extends to the outside of the detection pen body through a second side opening opened on the other side of the first side opening on the detection pen body; A light guide column is fixed in the electrode opening; the light guide column is a hollow structure with openings at both ends, and enables the main electrode to move therein; A push button is provided on the upper shell of the main body; the push button can pass through the upper shell of the main body and engage with the pressure sensor assembly, and push the pressure sensor assembly; The pressure sensor assembly includes a pressure sensor mainboard and a pressure sensor; the push button can be engaged with the pressure sensor; The main electrode connection assembly includes a first connection member and a second connection member; the first connection member is used to connect the pressure sensor and the second connection member; the second connection member is used to connect the first connection member and the main electrode; It also includes a main control motherboard and a battery; the main control motherboard and the battery are both installed inside the detection pen body; the main control motherboard is provided with motherboard connection ports on both sides; The neural sensor assembly comprises a first connector, a first main rod, a first elastic member, a first telescopic rod and a sensor connected in sequence; the sensor is fixed to one end of the first telescopic rod; the first main rod is an L-shaped curved rod, and the first main rod passes through the first side opening; the first connector is connected to the main control motherboard through the motherboard connection port; The auxiliary electrode assembly comprises a second connector, a second telescopic rod, a second main rod, a second elastic member and an auxiliary electrode connected in sequence; the second main rod is an L-shaped sleeve bent rod, one end of which is a hollow structure and can be sleeved on the second telescopic rod; The second main rod passes through the second side opening; the second connector is connected to the main control mainboard through the mainboard connection port.

2. A nerve conduction and tactile detection pen for auxiliary diagnosis and treatment of diabetic foot screening according to claim 1, characterized in that: The main control mainboard is also provided with a display light.

3. A nerve conduction and tactile detection pen for auxiliary diagnosis and treatment of diabetic foot screening according to claim 2, characterized in that: The main control mainboard is provided with a side of the display light facing the inner wall of the main body upper shell.

4. A nerve conduction and tactile detection pen for auxiliary diagnosis and treatment of diabetic foot according to claim 1, characterized in that: A mainboard button is provided at one end of the main control mainboard; the mainboard button is connected to a switch button through a mainboard button opening provided at one end of the detection pen body.

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