Optical imaging system for skin tumor diagnosis and evaluation

Abstract

The invention discloses an optical imaging system for skin tumor diagnosis and evaluation in the technical field of medical diagnose.The optical imaging system comprises a display module, a visual diagnosis module and a palpation module, the visual diagnosis module comprises a dermatoscope, the palpation module comprises a fixing frame and an air pump, a positioning plate is detachably connected to the fixing frame, and a plurality of telescopic positioning rods are slidably matched with the positioning plate; cavities are formed in the telescopic positioning rods, a plurality of holes are formed in the bottom ends of the cavities, the holes are obliquely formed, an adjusting assembly is further detachably connected to the fixing frame, and the control system is used for obtaining tumor area information according to movement information and marginal information of skin tumor of a patient. Tumor morphology information and tumor area information collected by a dermatoscope are combined to diagnose and evaluate skin tumors of a patient, and the problems that in the prior art, after dermatoscope diagnosis, palpation and the like need to be supplemented, the steps are tedious, and the working efficiency of doctors is likely to be affected are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical diagnosis, and in particular is an optical imaging system for diagnosing and evaluating skin tumors. Background Art

[0002] Skin tumors are cell proliferative diseases that occur in the skin and are a common disease. There are many types of new growths that occur in the skin or subcutaneous tissue. Clinically, they are divided into benign tumors and malignant tumors. Malignant tumors can continue to proliferate, cause metastasis, and threaten life, which is called skin cancer.

[0003] In the prior art, medical staff often use dermatoscopes and the like to non-invasively observe morphological features of the patient's skin surface and subepidermis that cannot be identified by the naked eye, and diagnose and evaluate the patient's tumor based on the observation results.

[0004] However, in the existing technology, dermoscopic diagnosis often needs to be supplemented by palpation before and after, so that the doctor can evaluate the shape and size of the tumor and formulate the next treatment plan. This step is relatively cumbersome and can easily affect the doctor's work efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide an optical imaging system for skin tumor diagnosis and evaluation, which is used to solve the problem in the prior art that after dermoscopic diagnosis, palpation and the like are required, which is cumbersome and easily affects the doctor's work efficiency.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: an optical imaging system for skin tumor diagnosis and evaluation, comprising a display module, a visual diagnosis module and a palpation module, the visual diagnosis module comprising a dermatoscope, the dermatoscope is used to collect tumor morphology information of the patient, the palpation module comprises a fixing frame and an air pump, the fixing frame is detachably connected to a positioning plate, a plurality of telescopic positioning rods are slidably matched on the positioning plate, the telescopic positioning rods are each provided with a chamber, the chambers are each connected to the air pump, a fixing assembly is provided in the telescopic positioning rods, the fixing assembly is used to fix the length of the telescopic positioning rods, a plurality of holes are each provided at the bottom end of the chamber, and the holes are all arranged obliquely, the fixing frame is also detachably connected to an adjustment assembly, the adjustment assembly is used to fix and move the dermatoscope;

[0007] It also includes a control system, which is used to control the operation of the fixing component and the air pump according to the movement information of the telescopic positioning rod and the distance information between the telescopic positioning rod and the skin, and obtain the tumor area information according to the movement information and the edge information of the patient's skin tumor, control the adjustment component to adjust the position of the dermatoscope according to the tumor area information, and control the operation of the dermatoscope according to the tumor area information, then combine the tumor morphology information collected by the dermatoscope with the tumor area information to diagnose and evaluate the patient's skin tumor, obtain evaluation information, and control the operation of the display module according to the results of the diagnosis and evaluation.

[0008] Further, the control system includes a first camera, a controller, a plurality of second cameras and a plurality of infrared sensors;

[0009] The first camera is used to collect first image information of the telescopic positioning rod;

[0010] The second camera is used to collect second image information of the patient's skin;

[0011] The infrared sensor is used to collect the distance information between the telescopic positioning rod and the patient's skin;

[0012] The controller is used to obtain movement information of the telescopic positioning rod according to the first image information, obtain edge information according to the second image information, control the operation of the fixing component and the adjustment component according to the movement information and the distance information, obtain tumor area information according to the movement information and the edge information, control the operation of the adjustment component and the dermatoscope according to the tumor area information, and can also combine the tumor morphology information collected by the dermatoscope with the movement information and the edge information to diagnose and evaluate the patient's skin tumor, obtain evaluation information, and control the operation of the display module according to the evaluation information.

[0013] Furthermore, the adjustment component includes a fixed frame, which is detachably connected to the fixed frame, and a transmission motor is fixedly connected to the fixed frame. The output shaft of the transmission motor is coaxially fixedly connected to a lead screw, and the other end of the lead screw is rotatably connected to the fixed frame. A cylinder is provided on the nut seat of the lead screw, and the output end of the cylinder is detachably connected to the dermatoscope. The controller controls the operation of the cylinder and the transmission motor according to the tumor area information.

[0014] Furthermore, the controller controls the display module to operate according to the tumor area information.

[0015] Furthermore, it also includes a communication module, and the controller controls the operation of the communication module by evaluating the information.

[0016] Furthermore, the fixing frame is made of elastic material.

[0017] Furthermore, the controller can also control the operation of the air pump based on the edge information.

[0018] Furthermore, the fixing modules include an electromagnet and a magnet sheet, and the electromagnet and the magnet sheet are both arranged in the telescopic positioning rod. The controller controls the operation of the electromagnet according to the movement information and the distance information.

[0019] Furthermore, the control system also includes a microphone, which is used to collect voice information of the patient, and the controller controls the display screen to work according to the voice information and the second image information.

[0020] Furthermore, a plurality of fixing grooves are formed on the bottom wall of the fixing frame.

[0021] The technical principles and beneficial effects of the above scheme are as follows:

[0022] This solution uses the setting of the palpation module to palpate the patient's tumor position, and determines the protruding area of ​​the patient's tumor and the area with hardness changes by collecting the movement of the telescopic positioning rod. At the same time, through the inclined holes, the air is sprayed obliquely to stretch the patient's skin, simulating the steps of stretching the patient's skin to identify the edge of the tumor during palpation. The accurate position and size of the tumor are determined by combining the protruding area of ​​the tumor, the area with hardness changes, and the area of ​​the edge of the tumor. And through the setting of the control system, the position of the dermatoscope is adjusted according to the accurate position and size of the tumor, so that the dermatoscope can accurately scan the tumor and obtain the status of the tumor. The control system then diagnoses and evaluates the tumor according to the position, size and status of the tumor.

[0023] Compared with the existing technology, this solution can reduce the number of palpation steps in the process of skin tumor diagnosis, and can adjust the position and area of ​​dermatoscope scanning according to the palpation results, thereby reducing the energy consumption of the dermatoscope.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of an embodiment of an optical imaging system for skin tumor diagnosis and evaluation according to the present invention;

[0026] Figure 2 A partial top view of a positioning plate of an embodiment of an optical imaging system for skin tumor diagnosis and evaluation of the present invention;

[0027] Figure 3 A top view of a fixed frame portion of an embodiment of an optical imaging system for skin tumor diagnosis and evaluation according to the present invention;

[0028] Figure 4 AA cross-sectional view of an embodiment of an optical imaging system for skin tumor diagnosis and assessment of the present invention;

[0029] Figure 5 BB cross-sectional view of an embodiment of the optical imaging system for skin tumor diagnosis and assessment of the present invention;

[0030] Figure 6 FIG. 4 is a circuit diagram of an optical imaging system for skin tumor diagnosis and assessment according to an embodiment of the present invention.

[0031] The figure marks in the drawings of the specification include: palpation module 1, fixing frame 11, fixing slot 111, telescopic positioning rod 12, outer rod 121, electromagnet 1211, inner rod 122, magnet sheet 1221, hole 1222, positioning plate 13, air pump 14, adjustment assembly 15, screw 151, nut seat 152, screw 153, electric clamp 154, transmission motor 155, fixing frame 156, dermatoscope 2, controller 3, display screen 4. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it is to be understood that the terms “longitudinal”, “lateral”, “vertical”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0035] The following is further described in detail through specific implementation methods:

[0036] Example 1

[0037] As attached Figure 1-6As shown: an optical imaging system for skin tumor diagnosis and evaluation, including a display module, a visual diagnosis module and a palpation module 1, the display module includes a display screen 4, the visual diagnosis module includes a dermatoscope 2, the dermatoscope 2 is used to collect tumor morphology information of the patient, the palpation module 1 includes a fixing frame 11 and an air pump 14, the fixing frame 11 is detachably connected with a positioning plate 13 by a buckle, the positioning plate 13 is slidably matched with a plurality of telescopic positioning rods 12, the telescopic positioning rods 12 each include an inner rod 122 and an outer rod 121, the inner rod 122 is slidably matched with the outer rod 121, and the inner walls of the inner rod 122 and the outer rod 121 each form a chamber, the chamber is connected to the air pump 14, and a fixing component is provided in the telescopic positioning rod 12, and the fixing component each includes an electromagnet 1211 and a magnet sheet 1221 The electromagnet 1211 is fixedly connected to the inner wall of the outer rod 121 by bolts, the magnet sheet 1221 is fixedly connected to the inner rod 122 by bolts, the fixing assembly is used to fix the length of the telescopic positioning rod 12, and a plurality of holes 1222 are opened at the bottom of the chamber, and the holes 1222 are arranged obliquely. The fixing frame 11 may also be provided with an adjustment assembly 15, and the adjustment assembly 15 includes a fixing frame 156, and the fixing frame 156 is detachably connected to the fixing frame 11 by a buckle. A transmission motor 155 is fixedly connected to the fixing frame 156 by bolts. The model of the transmission motor 155 is preferably MY36GP-36ZY. The output shaft of the transmission motor 155 is coaxially welded with a lead screw 151, and the other end of the lead screw 151 is rotatably connected to the fixing frame 156 by a bearing. A cylinder is fixedly connected to the nut seat 152 of 151 by bolts, and an electric clamp 154 ​​is fixedly connected to the output end of the cylinder by bolts. The cylinder is detachably connected to the dermatoscope 2 through the electric clamp 154, and the adjustment component 15 is used to fix and move the dermatoscope 2; it also includes a control system, the control system includes a first camera, a controller 3, a plurality of second cameras and a plurality of infrared sensors, the first camera is fixedly connected to the fixing frame 11 by bolts, the second camera and the infrared sensor are both fixedly connected to the bottom end of the inner rod 122 by bolts, the display screen 4, the transmission motor 155, the air pump 14, the electromagnet 1211, the cylinder, the infrared sensor, the first camera and the second camera are all electrically connected to the controller 3, and the first camera is used to collect the telescopic positioning rod 1 2, the second camera is used to collect the second image information of the patient's skin, the infrared sensor is used to collect the distance information between the telescopic positioning rod 12 and the patient's skin, the controller 3 is used to obtain the movement information of the telescopic positioning rod 12 according to the first image information, obtain the edge information according to the second image information, control the electromagnet 1211, the transmission motor 155 and the air pump 14 to work according to the movement information and the distance information, obtain the tumor area information according to the movement information and the edge information, control the adjustment component 15 and the dermatoscope 2 to work according to the tumor area information, and can also combine the tumor morphology information collected by the dermatoscope 2 with the movement information and the edge information to diagnose and evaluate the patient's skin tumor, obtain evaluation information, and control the display screen 4 to work according to the evaluation information.

[0038] The specific implementation process is as follows: When using this solution, the medical staff initially observes the location of the patient's skin tumor, and then buckles the bottom wall of the fixing frame 11 on the patient's skin, so that the positioning plate 13 can cover the skin tumor, and the bottom wall of the positioning frame does not squeeze the skin tumor, and then starts the device, the controller 3 controls the air pump 14 to work, ventilate the chamber, so that the inner rod 122 moves downward synchronously, and the infrared sensor continues to work. When the bottom ends of all the inner rods 122 are at the same and close distance from the patient's skin, such as the distance between the bottom ends of the inner rods 122 and the patient's skin is 0.5 mm, the controller 3 stops the air pump 14, and the first camera continues to collect The first image information of the telescopic positioning rod 12 shows that since part of the skin tumor protrudes from the normal skin, the inner rod 122 located above the skin tumor moves to a position 0.5 mm away from the patient's skin faster than the other inner rods 122, so that the moving distance of the telescopic positioning rod 12 located above the skin tumor is not synchronized with the other telescopic positioning rods 12. Therefore, the protruding area of ​​the skin tumor protruding from the normal skin can be judged by the position of the telescopic positioning rod 12 that descends asynchronously. That is, the protruding area of ​​the skin tumor protruding from the normal skin can be obtained by the position of the telescopic positioning rod 12 whose movement information changes asynchronously in the first image information.

[0039] After the bottom ends of all the inner rods 122 reach a position that is the same distance from and closer to the patient's skin, the controller 3 controls the electromagnet 1211 to work, and the electromagnet 1211 generates a magnetic force to attract the magnet sheet 1221, thereby fixing the relative position of the inner rod 122 and the outer rod 121. Then the controller 3 controls the air pump 14 to increase the working power, thereby increasing the flow rate of the air entering the chamber. The gas in the chamber is sprayed onto the patient's skin through the hole 1222, and after rebounding from the patient's skin, the telescopic positioning rod 12 is pushed to move upward. Since the tumor is usually harder than normal skin, and when the air is blown onto an object with a higher hardness, the object with a higher hardness can produce a greater resistance to the air, thereby causing a greater pressure difference between the air and the surface of the object with a higher hardness, thereby causing the air to be rebounded with a greater force, that is, the air sprayed on the skin tumor has a greater rebound force than the air sprayed on the normal skin, pushing the telescopic positioning rod 12 to move upward a greater distance, that is, the movement information is greater, and the controller 3 can judge the hardness area of ​​the skin tumor whose hardness is greater than that of the normal skin through the position of the telescopic positioning rod 12 with a greater change in movement information.

[0040] At the same time, the second camera continuously collects second image information of the patient's skin surface, and the air in the chamber is sprayed onto the patient's skin through the obliquely arranged holes 1222, pushing the patient's skin to move diagonally downward, thereby unfolding the patient's skin, simulating the action of stretching the skin to observe the edge of the tumor during dermatological palpation, and obtaining the edge area of ​​the tumor, that is, the edge information, through the area of ​​the unfolded skin tumor in the second image information.

[0041] The controller 3 combines the protruding area, hardness area and edge area to obtain the precise size and position of the tumor, i.e., the tumor area information. The medical staff turns off the control system, releases the fixation of the positioning plate 13 and the fixing frame 11, and Figure 3 and Figure 5 As shown, the fixing frame 11 and the fixing frame 156 are fixed, and then the control system is started again. The controller 3 controls the cylinder to work according to the tumor area information, so that the dermatoscope 2 can accurately scan over the tumor, and only when the dermatoscope 2 scans over the tumor, the dermatoscope 2 is started to accurately collect the tumor morphology information of the tumor. The controller 3 judges and evaluates the tumor at this position based on the tumor morphology information and the tumor area information to obtain evaluation information. The controller 3 controls the display screen 4 to work according to the evaluation information, and displays the evaluation information to the medical staff through the display screen 4. After the collection is completed, the cylinder is controlled to work again to reset the dermatoscope 2. At this time, the medical staff can start the electric clamp 154 ​​to remove the dermatoscope 2 to complete a diagnosis and evaluation of the tumor.

[0042] Based on the above scheme, in order to reduce the waste of time during the use of this scheme, the controller 3 controls the display module to work according to the tumor area information. Therefore, after the controller 3 obtains the tumor area information, the controller 3 controls the display screen 4 to work, prompting the medical staff to release the fixation of the positioning plate 13 and the fixing frame 11 and proceed to the next step, so that the medical staff does not have to continuously observe the working status of the palpation module 1, and avoids the situation where the medical staff touches the fixation of the positioning plate 13 and the fixing frame 11 when the controller 3 does not obtain the tumor area information, making it difficult for the controller 3 to obtain the precise size and position of the tumor, affecting subsequent operations and evaluation results, or after the controller 3 obtains the tumor area information, the medical staff fails to discover it in time and take the next step, thereby causing a waste of time.

[0043] Based on the above scheme, in order to increase the usage scenarios of the present invention, a communication module is also included. The model of the communication module is preferably TAS-LTE-364. The communication module is electrically connected to the controller 3. The controller 3 controls the operation of the communication module through evaluation information. Therefore, after the controller 3 obtains the evaluation information, the communication module is controlled to send the evaluation information to the medical staff. The medical staff does not have to continuously observe the display screen 4 to obtain the evaluation information, so that the present scheme can be used in the usage scenario of remote consultation.

[0044] Based on the above scheme, in order to make this scheme adapt to the shapes of different positions of different patients, so that this scheme can diagnose and evaluate tumors in different positions of patients, the fixing frame 11 is made of elastic material. Therefore, when the bottom wall of the fixing frame 11 is buckled on the patient's skin, the fixing frame 11 undergoes elastic deformation, so that the fixing frame 11 can fit the patient's skin and adapt to the patient's skin, thereby avoiding the fixing frame 11 being unstable and affecting the subsequent operation of the dermatoscope 2.

[0045] Based on the above scheme, in order to increase the accuracy of the tumor edge area collected by this scheme, the controller 3 can also control the air pump 14 to work according to the edge information. Therefore, when the controller 3 controls the air pump 14 to increase the working power, the air is sprayed onto the patient's skin from the inclined holes 1222. In the process of unfolding the patient's skin, if the edge of the tumor is not exposed in the second image information, that is, the edge information is relatively vague, the controller 3 controls the air pump 14 to increase the working power, so that the speed of the air sprayed from the inclined holes 1222 is accelerated, pushing the patient's skin downward for a greater distance, further unfolding the patient's skin, and promoting the exposure of the tumor edge.

[0046] Based on the above scheme, in order to prevent the dermatoscope 2 from causing further damage to the skin of patients who have already developed allergies, the control system also includes a microphone, which is fixedly connected to the fixing frame 11 by bolts. The microphone is used to collect the patient's voice information. The microphone is electrically connected to the controller 3, and the controller 3 controls the display screen 4 to operate according to the voice information and the second image information. Therefore, during the whole process of using this scheme, the microphone continuously collects the patient's voice information. When the patient's voice information contains words such as "itchy", or the second image information shows that the patient's skin becomes red and swollen, the patient may have allergies. The controller 3 controls the display screen 4 to display words such as "allergy", etc., to prompt the medical staff, prompting them to check the patient's skin in time to determine whether allergies occur. If allergies occur, terminate the use of this scheme in time to prevent the dermatoscope 2 from causing further damage to the patient's skin.

[0047] Based on the above scheme, in order to prevent the medical staff from moving the positioning plate 13 and the fixing frame 156 and causing the fixing frame 11 to move, thereby causing errors in the subsequent scanning position of the dermatoscope 2 and affecting the scanning results, a plurality of fixing grooves 111 are opened on the bottom wall of the fixing frame 11. Therefore, when in use, when the bottom wall of the fixing frame 11 is buckled on the patient's skin, the fixing frame 11 is squeezed to allow the gas in the fixing groove 111 to overflow, and then the fixing frame 11 is released. The fixing frame 11 is reset under the action of its own elastic force, causing the air pressure in the fixing groove 111 to drop. Under the action of pressure, the fixing frame 11 is fixed to the patient's skin, thereby preventing the fixing frame 11 from moving during the subsequent diagnosis process and affecting the collection of tumor status information of the dermatoscope 2.

[0048] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and / or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An optical imaging system for skin tumor diagnosis and assessment, characterized in that: It includes a display module, a visual diagnosis module and a palpation module. The visual diagnosis module includes a dermatoscope, which is used to collect tumor morphology information of patients. The palpation module includes a fixing frame and an air pump. The fixing frame is detachably connected with a positioning plate, and a plurality of telescopic positioning rods are slidably matched on the positioning plate. The telescopic positioning rods are each provided with a chamber, and the chambers are each connected with the air pump. The telescopic positioning rods are each provided with a fixing component, and the fixing component is used to fix the length of the telescopic positioning rod. The bottom end of each chamber is provided with a plurality of holes, and the holes are all arranged obliquely. The fixing frame is also detachably connected with an adjustment component, and the adjustment component is used to fix and move the dermatoscope. It also includes a control system, which is used to control the operation of the fixing component and the air pump according to the movement information of the telescopic positioning rod and the distance information between the telescopic positioning rod and the skin, and obtain the tumor area information according to the movement information and the edge information of the patient's skin tumor, control the adjustment component to adjust the position of the dermatoscope according to the tumor area information, and control the operation of the dermatoscope according to the tumor area information, then combine the tumor morphology information collected by the dermatoscope with the tumor area information to diagnose and evaluate the patient's skin tumor, obtain evaluation information, and control the operation of the display module according to the results of the diagnosis and evaluation.

2. The optical imaging system for skin tumor diagnosis and assessment according to claim 1, characterized in that: The control system includes a first camera, a controller, a plurality of second cameras and a plurality of infrared sensors; The first camera is used to collect first image information of the telescopic positioning rod; The second camera is used to collect second image information of the patient's skin; The infrared sensor is used to collect the distance information between the telescopic positioning rod and the patient's skin; The controller is used to obtain movement information of the telescopic positioning rod according to the first image information, obtain edge information according to the second image information, control the operation of the fixing component and the adjustment component according to the movement information and the distance information, obtain tumor area information according to the movement information and the edge information, control the operation of the adjustment component and the dermatoscope according to the tumor area information, and can also combine the tumor morphology information collected by the dermatoscope with the movement information and the edge information to diagnose and evaluate the patient's skin tumor, obtain evaluation information, and control the operation of the display module according to the evaluation information.

3. The optical imaging system for skin tumor diagnosis and assessment according to claim 2, characterized in that: The adjustment component includes a fixed frame, which is detachably connected to a fixed frame. A transmission motor is fixedly connected to the fixed frame. A lead screw is coaxially fixedly connected to the output shaft of the transmission motor. The other end of the lead screw is rotatably connected to the fixed frame. A cylinder is provided on the nut seat of the lead screw. The output end of the cylinder is detachably connected to the dermatoscope. A controller controls the operation of the cylinder and the transmission motor according to the tumor area information.

4. The optical imaging system for skin tumor diagnosis and assessment according to claim 3, characterized in that: The controller controls the display module to work according to the tumor area information.

5. The optical imaging system for skin tumor diagnosis and assessment according to claim 4, characterized in that: It also includes a communication module, and the controller controls the operation of the communication module by evaluating the information.

6. The optical imaging system for skin tumor diagnosis and assessment according to claim 5, characterized in that: The fixing frame is made of elastic material.

7. The optical imaging system for skin tumor diagnosis and assessment according to claim 6, characterized in that: The controller can also control the operation of the air pump based on edge information.

8. The optical imaging system for skin tumor diagnosis and assessment according to claim 7, characterized in that: The fixed modules include an electromagnet and a magnet sheet, and the electromagnet and the magnet sheet are both arranged in the telescopic positioning rod. The controller controls the operation of the electromagnet according to the movement information and the distance information.

9. The optical imaging system for skin tumor diagnosis and assessment according to claim 8, characterized in that: The control system also includes a microphone, which is used to collect voice information of the patient. The controller controls the display screen to work according to the voice information and the second image information.

10. The optical imaging system for skin tumor diagnosis and assessment according to claim 9, characterized in that: The bottom wall of the fixing frame is provided with a plurality of fixing grooves.

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