A skin sampling device

Abstract

The present invention discloses a skin sampling device, belonging to the technical field of skin sampling, which includes a hand-held device for hand-held operation to perform skin sampling, a cutting device for cutting and sampling the patient's skin, a rotary driving device for driving the cutting device to rotate and surround for cutting, a lifting and adjusting device for lifting the cutting device, an angle adjusting device for adjusting the angle of the cutting device to change, and an auxiliary protection device for assisting the cutting device in cutting and damping. The rotary driving device is arranged inside the hand-held device, and the lifting and adjusting device is arranged inside the hand-held device. In this device, the skin and tissue are cut and peeled off to achieve effective and precise skin cutting and sampling operations. Moreover, the design is simple and easy to operate, reducing the time for medical staff to learn and adapt to the equipment. Compared with some complex automated equipment, the manually operated equipment does not require additional programming, debugging and other steps.

Description

Technical Field

[0001] The present invention relates to the technical field of skin sampling, and in particular to a skin sampling device. Background Art

[0002] As the largest organ of the whole body, the slightest changes in the skin are closely related to external stimuli and visceral diseases. No matter what kind of disease a patient has, as long as there are skin symptoms, they should immediately go to the dermatology department for treatment. Combining the visible and palpable skin lesions such as skin erythema, papules, nodules, blisters, wheals, scales, erosions or lichens that appear on the skin, mucous membranes, nails, hair, etc., and combining the clinical symptoms such as itching, numbness, pain, etc., dermatologists can usually diagnose the disease based on their previous clinical experience and carry out symptomatic treatment. However, for some patients who are difficult to diagnose or differentiate clinically with the naked eye, whose diseases are stubborn, recurrent or ineffective in conventional treatment, a small amount of diseased skin is usually excised for pathological biopsy to obtain an accurate diagnosis of the disease, so as to avoid delaying the condition and enable the patient to receive more precise treatment.

[0003] In conventional biopsy resection, there is currently no unified standard for the size of the excised skin lesions. Especially for the exposed parts of the skin such as the face, neck or limbs, the healing of the skin after excision and the risk of postoperative scars should be fully considered clinically. If the excised skin lesion is too small or the excision depth is insufficient, it may affect the accuracy of pathological result interpretation; if the excised skin lesion is too large and too deep, it may increase the bleeding volume, affect the wound repair of the patient after surgery and increase the scar risk. Therefore, there is an urgent need for a new device that can sample diseased skin in clinical practice to overcome the deficiencies and application limitations of traditional skin sampling, reduce the pain and discomfort of patients during the sampling process, improve the compliance of patients, and enable clinicians to collect diseased skin samples of patients more quickly, conveniently and accurately, which will greatly improve the accuracy of disease diagnosis and enable patients to receive more effective and precise treatment.

[0004] A skin sampling device with the publication number of CN117838205B is disclosed, which includes a housing and a propulsion unit, a cutting unit and a spiral part arranged in the housing. The propulsion unit includes a lead screw, a sleeve sleeved on the lead screw and a rotating part for driving the lead screw to rotate. The lead screw is slidably connected to the sleeve. The spiral part includes a spiral rod with a cross-section in the shape of "one" and a limiting rod fixedly connected to the spiral rod. The cutting unit includes a spiral block rotatably connected to the propulsion unit and a cutting knife. The spiral block is provided with a spiral groove and is slidably connected to the spiral rod. The spiral block is rotatably connected to the end of the sleeve. A plurality of first sliding grooves are circumferentially formed on the sleeve. The limiting rod passes through the first sliding grooves and is connected to the housing. The bottom of the housing presses on the skin. The rotating part rotates to drive the sleeve to slide to cut the skin drilled by the cutting knife, so as to provide a skin sampling device for clinical use in dermatology with convenient operation, low operation difficulty and good effect.

[0005] The device performs skin cutting and sampling by means of sleeve rotation cutting. Generally, the skin on the human body surface will not directly fall off after being cut by the rotating cylinder. If the human skin is damaged by the external force of the rotating cylinder, the following situations usually occur:

[0006] First of all, the skin has a certain elasticity and toughness. When subjected to a cutting force, it may first be damaged and cracked. However, due to the connection between the skin and body tissues, such as subcutaneous fat and muscles, and the structural characteristics of the skin itself, it will not easily fall off directly;

[0007] Secondly, when the human body is injured, a series of physiological reactions will be initiated. For example, blood will quickly coagulate at the wound to form a blood clot, which will also prevent the skin from falling off to a certain extent. At the same time, the body's immune system will start to work, and white blood cells will gather at the wound to fight against possible infections, further affecting the state of the skin;

[0008] However, if the cutting force is very large and acts continuously, seriously damaging the connection between the skin and body tissues, and accompanied by other complex situations, such as strong external pulling, then in extreme cases, the skin may partially or completely detach from the body, but this situation is relatively rare and usually occurs in extremely serious accidents;

[0009] In short, generally, the skin on the human body surface will not directly fall off after being cut by the rotating cylinder. Therefore, this device provides a skin sampling device. Summary of the Invention

[0010] An embodiment of the present invention provides a skin sampling device to solve the above-mentioned technical problems.

[0011] The embodiment of the present invention adopts the following technical solutions: It includes a hand-held device for hand-held operation to perform skin sampling, a cutting device for cutting and sampling the patient's skin, a rotary drive device for driving the cutting device to rotate and surround for cutting, a lifting adjustment device for lifting the cutting device, an angle adjustment device for adjusting the angle of the cutting device to change, and an auxiliary protection device for assisting the cutting device to perform cutting shock absorption. The rotary drive device is arranged inside the hand-held device. The lifting adjustment device is arranged inside the hand-held device, and the lower end of the lifting adjustment device is in a vertically sliding fit with the rotary drive device. There are several angle adjustment devices, and several of the angle adjustment devices are respectively arranged around the lower end of the lifting adjustment device at equal intervals. There are several cutting devices, and several of the cutting devices are respectively arranged at the lower ends of the corresponding angle adjustment devices. The auxiliary protection device is arranged inside the hand-held device and is fixedly connected.

[0012] Further, the handheld device includes a pressure plate, a clamping column, a storage block, a sleeve, a connecting cylinder, and an auxiliary cylinder. The clamping column is arranged at the lower end of the pressure plate. The interior of the clamping column is hollow. The storage block is arranged at the lower end of the clamping column and is in communication with it. The sleeve is arranged at the lower end of the storage block and is in communication with it. The connecting cylinder is arranged at the lower end of the clamping column and is in communication with it. The auxiliary cylinder is arranged at the lower end of the connecting cylinder and is in communication with it. The auxiliary cylinder is rotatably connected to the connecting cylinder. Two sliding grooves are symmetrically arranged on the auxiliary cylinder.

[0013] Further, the rotation driving device includes a driving motor, a driving wheel, a driven wheel, a belt, a rotating rod, and a rotating cylinder. The driving motor is arranged at one end of the storage block. The output end of the driving motor faces downward and passes through the storage block and is located inside it. The driving wheel is arranged on the output end of the driving motor and is located inside the storage block. The driven wheel is sleeved on the outer position of the lower end of the clamping column and is rotatably connected. The belt is sleeved on the driving wheel and the driven wheel. There are two rotating rods, and the two rotating rods are symmetrically arranged at the lower end of the driven wheel. The rotating cylinder is arranged at the lower ends of the two rotating rods. The rotating cylinder is rotatably connected to the inner wall of the sleeve. A number of matching grooves are arranged around the inside of the rotating cylinder.

[0014] Further, the lifting and adjusting device includes an electric cylinder, a lifting shaft, a lifting block, a lifting ring, a lifting rod, and a lifting column. The electric cylinder is arranged at the top inside the clamping column. The lifting shaft is arranged on the output end of the electric cylinder and is rotatably connected. There are two lifting blocks, and the two lifting blocks are symmetrically arranged at the lower part of the lifting shaft. One ends of the two lifting blocks respectively pass through the corresponding sliding grooves on the auxiliary sleeve and are in up-and-down sliding fit with the corresponding sliding grooves. The inside of the lifting ring is connected to one ends of the two lifting blocks. There are a number of lifting rods, and the number of lifting rods are equidistantly arranged around the lower end of the lifting ring. There are a number of lifting columns, and the number of lifting columns are respectively arranged at the lower ends of the corresponding lifting rods. The number of lifting columns are respectively located in the corresponding matching grooves and are in up-and-down sliding fit with the corresponding matching grooves.

[0015] Further, each of the number of angle adjusting devices includes an adjusting shaft, a main gear, a driven gear, an adjusting rack, and an adjusting plate. Adjusting grooves are arranged at the lower ends of the number of lifting columns. The adjusting shaft is arranged in the corresponding adjusting groove and is rotatably connected. The main gear is sleeved on the adjusting shaft. The driven gear is rotatably connected in the corresponding adjusting groove and is meshed with the corresponding main gear. The adjusting rack is fixedly arranged in the corresponding matching groove and the adjusting rack is meshed with the corresponding driven gear. The adjusting plate is sleeved on the adjusting shaft and is inclined.

[0016] Furthermore, several of the cutting devices each include a fixing bolt and a cutting tool. The cutting tool is provided with fixing holes. There are two fixing bolts. Several adjusting plates are symmetrically provided with a plurality of threaded holes. The plurality of threaded holes are divided into several groups and are evenly arranged. The cutting tool is fixed to the corresponding adjusting plate by two fixing bolts. The two fixing bolts are in threaded connection with the corresponding threaded holes. A sensor is provided on each of the several cutting tools.

[0017] Furthermore, the auxiliary protection device includes an auxiliary protection column, a spring and an auxiliary protection block. The auxiliary protection column is arranged at the lower end of the auxiliary cylinder. There are several auxiliary protection blocks. The several auxiliary protection blocks are equidistantly arranged around the outer side of the auxiliary protection column. There are several springs. The several auxiliary protection blocks are respectively connected to the outer side of the auxiliary protection column by corresponding springs.

[0018] Furthermore, a rubber layer is provided on the outer side of each of the several auxiliary protection blocks. The lowest ends of the several auxiliary protection blocks are at the same height as the lowest end of the lower end of the sleeve.

[0019] Furthermore, the start buttons of the electric cylinder and the drive motor are arranged on the side end of the storage block. The electric cylinder and the drive motor are electrically connected to the sensor.

[0020] The above at least one technical solution adopted in the embodiment of the present invention can achieve the following beneficial effects:

[0021] First, the device has a simple design and is easy to operate, reducing the time for medical staff to learn and adapt to the equipment. Compared with some complex automated equipment, manually operated equipment does not require additional steps such as programming and debugging.

[0022] Secondly, the device presses and covers the sleeve on the desired sampling skin, and several auxiliary protection blocks are also pressed on the skin and equidistantly surrounded by the center of the sleeve. At this time, the inside of the sleeve and the corresponding auxiliary protection block are the skin cutting and sampling positions. After starting the drive motor and the electric cylinder, it will drive several cutting tools to move downward under the premise of rotating in a circle to achieve skin cutting and sampling operations. Because the skin has a certain elasticity and toughness, it may be damaged and cracked when subjected to cutting force. However, due to the connection between the skin and body tissues, such as subcutaneous fat, muscles, etc., as well as the structural characteristics of the skin itself, it will not fall directly and easily. At the same time, while the several cutting tools are moving downward, the angles will continue to change, and the angles will continue to decrease. The decrease in the angles of the several cutting tools will eventually cause the several cutting tools to move toward the corresponding auxiliary protection blocks, and finally when the several cutting tools come into contact with the corresponding auxiliary protection blocks, the skin and tissue will be cut and peeled off to achieve effective and precise skin cutting and sampling operations.

[0023] Thirdly, after cutting is achieved by contacting a plurality of cutting tools with the corresponding auxiliary protective blocks, the cut and sampled skin is sampled in a ring state, and when the cutting tools do not move upward to break contact with the corresponding auxiliary protective blocks, the cut and sampled skin will not fall out of the device, so no pollution will be caused. During subsequent sampling, the cut skin will be dropped out and taken out only after the electric cylinder drives a plurality of cutting tools to move upward, thereby reducing the risk of infection transmission and preventing the spread of microorganisms. If the skin does not fall after cutting, it can effectively prevent the various microorganisms (such as bacteria, viruses, and fungi) carried on the skin surface from spreading in the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the cutaway structure of the handheld device of the present invention;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the lifting and lowering adjustment device and the rotating driving device in the present invention;

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the handheld device and the auxiliary protection device in the present invention;

[0029] Figure 5Schematic three-dimensional structure diagram of the rotation drive device in the present invention;

[0030] Figure 6 Schematic three-dimensional structure diagram of the lifting adjustment device, rotation drive device and angle adjustment device in the present invention;

[0031] Figure 7 Schematic partial structure diagram of the present invention;

[0032] Figure 8 Schematic structure diagram of the separated state of the lifting adjustment device and rotation drive device in the present invention;

[0033] Figure 9 is Figure 4 Enlarged view of part A in

[0034] Figure 10 is Figure 6 Enlarged view of part B in

[0035] Figure 11 is Figure 7 Enlarged view of part C in

[0036] Reference numerals

[0037] Handheld device 1, pressure plate 11, clamping column 12, storage block 13, sleeve 14, connecting cylinder 15, auxiliary cylinder 16, sliding groove 17, cutting device 2, fixing bolt 21, cutting tool 22, rotation drive device 3, drive motor 31, driving wheel 32, driven wheel 33, belt 34, rotating rod 35, rotating cylinder 36, mating groove 37, lifting adjustment device 4, electric cylinder 41, lifting shaft 42, lifting block 43, lifting ring 44, lifting rod 45, lifting column 46, adjustment groove 47, angle adjustment device 5, adjustment shaft 51, main gear 52, driven gear 53, adjustment rack 54, adjustment plate 55, threaded hole 56, auxiliary protection device 6, auxiliary protection column 61, spring 62, auxiliary protection block 63, start button 7. Detailed description of the preferred embodiments

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the specific embodiments and corresponding drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] The technical solutions provided by the embodiments of the present invention will be described in detail below with reference to the drawings.

[0040] An embodiment of the present invention provides a skin sampling device, which includes a hand-held device 1 for hand-held operation for skin sampling, a cutting device 2 for cutting and sampling the patient's skin, a rotary driving device 3 for driving the cutting device 2 to rotate and surround for cutting, a lifting adjustment device 4 for lifting the cutting device 2, an angle adjustment device 5 for adjusting the angle of the cutting device 2 to change, and an auxiliary protection device 6 for assisting the cutting device 2 in cutting and damping. The rotary driving device 3 is arranged inside the hand-held device 1, the lifting adjustment device 4 is arranged inside the hand-held device 1, and the lower end of the lifting adjustment device 4 is in a vertically sliding fit with the rotary driving device 3. A plurality of angle adjustment devices 5 are provided, and the plurality of angle adjustment devices 5 are respectively arranged around the lower end of the lifting adjustment device 4 at equal intervals. A plurality of cutting devices 2 are provided, and the plurality of cutting devices 2 are respectively arranged at the lower ends of the corresponding angle adjustment devices 5. The auxiliary protection device 6 is arranged inside the hand-held device 1 and is fixedly connected.

[0041] When the sleeve 14 is pressed and covered on the skin to be sampled, and a plurality of auxiliary protection blocks 63 are also pressed on the skin and are equidistantly arranged around the center of the sleeve 14. At this time, the position between the inside of the sleeve 14 and the corresponding auxiliary protection blocks 63 is the skin cutting and sampling position. After starting the driving motor 31 and the electric cylinder 41, it will drive a plurality of cutting tools 22 to move downward while rotating around to realize the skin cutting and sampling operation. Because the skin has certain elasticity and toughness, when subjected to a cutting force, it may first be damaged and cracked. However, due to the connection between the skin and body tissues, such as subcutaneous fat, muscles, etc., and the structural characteristics of the skin itself, it will not easily fall off directly. At the same time, while a plurality of cutting tools 22 are moving downward, the angles will also continuously change and decrease. The decrease in the angles of a plurality of cutting tools 22 will ultimately cause a plurality of cutting tools 22 to move towards the corresponding auxiliary protection blocks 63. Eventually, when the plurality of cutting tools 22 contact the corresponding auxiliary protection blocks 63, the skin and tissues are cut and peeled off, realizing an effective and precise skin cutting and sampling operation.

[0042] Preferably, the hand-held device 1 includes a pressure plate 11, a clamping column 12, a storage block 13, a sleeve 14, a connecting cylinder 15 and an auxiliary cylinder 16. The clamping column 12 is arranged at the lower end of the pressure plate 11. The inside of the clamping column 12 is hollow. The storage block 13 is arranged at the lower end of the clamping column 12 and is communicatively connected. The sleeve 14 is arranged at the lower end of the storage block 13 and is communicatively connected. The connecting cylinder 15 is arranged at the lower end of the clamping column 12 and is communicatively connected. The auxiliary cylinder 16 is arranged at the lower end of the connecting cylinder 15 and is communicatively connected. The auxiliary cylinder 16 is rotatably connected to the connecting cylinder 15. Two sliding grooves 17 are symmetrically arranged on the auxiliary cylinder 16;

[0043] When taking a sample from a patient's skin, the operator holds it in the following way. First, the area between the index finger and the middle finger is clamped on the clamping column 12. The backs of the index finger and the middle finger, that is, the upper ends, will touch the lower end position of the pressure plate 11. The ring finger and the little finger are placed on one side outside the storage block 13, and the thumb is placed on the other side outside the storage block 13, that is, the side of the storage block 13 where the electric cylinder 41 and the driving motor 31 can be activated, so as to facilitate the operator to start the cutting operation. At this time, the palm is placed on the upper end of the storage block 13. Then, the sleeve 14 is pressed against the skin of the patient where the sample is needed. The holding method and the operation of starting the cutting of this device are relatively convenient. It is a skin sampling and cutting device that is easy for manual operation, enabling medical staff to better control the position where the device contacts the skin and accurately locate the sampling area. When taking a skin sample, for example, when diagnosing skin diseases such as melanoma and skin inflammation and samples need to be obtained from specific lesion sites, medical staff can accurately place the cutting device in the target area by relying on the sense of touch and visual feedback, avoiding taking irrelevant tissues, thereby ensuring that the obtained samples can accurately reflect the lesion conditions and improving the accuracy of diagnosis. The physical conditions of different patients, such as obesity degree, muscle tension, skin relaxation degree, etc., are different. The flexibility of manual operation enables the device to be effectively used on patients with different body types and physical states. This device is simply designed and easy to operate, reducing the time for medical staff to learn and adapt to the device. Compared with some complex automated devices, the manually operated device does not require additional programming, debugging and other steps.

[0044] Preferably, the rotation driving device 3 includes a driving motor 31, a driving wheel 32, a driven wheel 33, a belt 34, a rotating rod 35 and a rotating cylinder 36. The driving motor 31 is arranged at one end of the storage block 13. The output end of the driving motor 31 is arranged downward and passes through the storage block 13 and is located inside it. The driving wheel 32 is arranged on the output end of the driving motor 31 and is located inside the storage block 13. The driven wheel 33 is sleeved on the outer position of the lower end of the clamping column 12 and is rotatably connected. The belt 34 is sleeved on the driving wheel 32 and the driven wheel 33. There are two rotating rods 35, and the two rotating rods 35 are symmetrically arranged at the lower end of the driven wheel 33. The rotating cylinder 36 is arranged at the lower ends of the two rotating rods 35. The rotating cylinder 36 is rotatably connected to the inner wall of the sleeve 14. A number of matching grooves 37 are arranged around the inside of the rotating cylinder 36;

[0045] When taking a sample of the patient's skin, after the operator picks it up in the above manner, the sleeve 14 is pressed and covered over the skin to be sampled, and several auxiliary protection blocks 63 are also pressed on the skin and are equidistantly arranged around the center of the sleeve 14. At this time, the position for skin cutting and sampling is between the inside of the sleeve 14 and the corresponding auxiliary protection blocks 63. Because several auxiliary protection blocks 63 are also pressed on the skin and the sleeve 14 is pressed on the skin, a height difference will be formed between the skin between the two and the pressed skin, making the skin to be cut and sampled between the inside of the sleeve 14 and the corresponding auxiliary protection blocks 63 in a convex state, which is more convenient for subsequent accurate skin cutting operations. At this time, by the operator pressing the start button 7 of the drive motor 31, after the pressing is completed, the drive motor 31 starts to drive the driving wheel 32 on the output end of the drive motor 31 to rotate. The rotation of the driving wheel 32 drives the driven wheel 33 to rotate through the cooperation of the belt 34. The rotation of the driven wheel 33 drives the two rotating rods 35 to rotate. The rotation of the two rotating rods 35 drives the rotating cylinder 36 to rotate on the inner wall of the sleeve 14, thereby driving the lifting and adjusting device 4 to rotate, and finally driving several cutting devices 2 on the lifting and adjusting device 4 to rotate, so as to realize the rotary cutting operation.

[0046] Preferably, the lifting and adjusting device 4 includes an electric cylinder 41, a lifting shaft 42, a lifting block 43, a lifting ring 44, a lifting rod 45 and a lifting column 46. The electric cylinder 41 is arranged at the top inside the clamping column 12. The lifting shaft 42 is arranged on the output end of the electric cylinder 41 and is rotatably connected. There are two lifting blocks 43, and the two lifting blocks 43 are symmetrically arranged at the lower part of the lifting shaft 42. One end of each of the two lifting blocks 43 passes through the corresponding sliding groove 17 on the auxiliary sleeve 14 and is in up and down sliding fit with the corresponding sliding groove 17. The inside of the lifting ring 44 is connected to one end of the two lifting blocks 43. There are several lifting rods 45, and the several lifting rods 45 are equidistantly arranged around the lower end of the lifting ring 44. There are several lifting columns 46, and the several lifting columns 46 are respectively arranged at the lower ends of the corresponding lifting rods 45. The several lifting columns 46 are respectively located in the corresponding matching grooves 37 and are in up and down sliding fit with the corresponding matching grooves 37. Each of the several angle adjusting devices 5 includes an adjusting shaft 51, a main gear 52, a driven gear 53, an adjusting rack 54 and an adjusting plate 55. Adjusting grooves 47 are provided at the lower ends of the several lifting columns 46. The adjusting shaft 51 is arranged in the corresponding adjusting groove 47 and is rotatably connected. The main gear 52 is sleeved on the adjusting shaft 51. The driven gear 53 is rotatably connected in the corresponding adjusting groove 47 and is meshed with the corresponding main gear 52. The adjusting rack 54 is fixedly arranged in the corresponding matching groove 37 and the adjusting rack 54 is meshed with the corresponding driven gear 53. The adjusting plate 55 is sleeved on the adjusting shaft 51 and is inclined.

[0047] After starting the driving motor 31 to rotate, then press the start button 7 of the electric cylinder 41 to start the electric cylinder 41 to drive the lifting shaft 42 to move downward. The downward movement of the lifting shaft 42 drives the two lifting blocks 43 to move downward. The downward movement of the two lifting blocks 43 drives the lifting ring 44 to move downward. The downward movement of the lifting ring 44 drives a plurality of lifting rods 45 to move downward. The downward movement of the plurality of lifting rods 45 drives the corresponding lifting columns 46 to move downward in the corresponding matching grooves 37. The downward movement of the plurality of lifting columns 46 drives the corresponding adjusting shafts 51 in the corresponding adjusting grooves 47 to move downward. The downward movement of the plurality of adjusting shafts 51 drives the corresponding main gears 52 and the corresponding driven gears 53 to move downward. Since the plurality of driven gears 53 are meshed with the corresponding adjusting racks 54, when the plurality of driven gears 53 move downward, they will rotate. The rotation of the plurality of driven gears 53 drives the corresponding main gears 52 to rotate. The rotation of the plurality of main gears 52 drives the corresponding adjusting shafts 51 to rotate. The rotation of the plurality of adjusting shafts 51 drives the corresponding cutting tools 22 to change the inclination angle and the downward movement distance required for rotation. The rotation of the rotating cylinder 36 drives the corresponding lifting columns 46 to rotate. The rotation of the plurality of lifting columns 46 drives the corresponding cutting tools 22 to rotate. Since the lifting shaft 42 is arranged on the output end of the electric cylinder 41 and is rotationally connected, and the auxiliary cylinder 16 and the connecting cylinder 15 are rotationally connected, the lifting shaft 42 and the auxiliary cylinder 16 are in a cooperative auxiliary rotation state. Two sliding grooves 17 are symmetrically arranged on the auxiliary cylinder 16 to assist the two lifting blocks 43 to move downward, so that the device presses and covers the sleeve 14 at the required skin sampling position. A plurality of auxiliary protection blocks 63 are also pressed on the skin and are equidistantly surrounded at the center of the sleeve 14. At this time, the position between the inside of the sleeve 14 and the corresponding auxiliary protection blocks 63 is the skin cutting and sampling position. After starting the driving motor 31 and the electric cylinder 41, it will drive a plurality of cutting tools 22 to move downward while rotating around to realize the skin cutting and sampling operation. Because the skin has a certain elasticity and toughness, when subjected to a cutting force, it may first be damaged and cracked. However, due to the connection between the skin and the body tissues, such as subcutaneous fat, muscles, etc., and the structural characteristics of the skin itself, it will not easily fall off directly. At the same time, while the plurality of cutting tools 22 move downward, the angle will also continuously change and decrease. The decrease in the angle of the plurality of cutting tools 22 will eventually cause the plurality of cutting tools 22 to move in the direction of the corresponding auxiliary protection blocks 63. Finally, when the plurality of cutting tools 22 contact the corresponding auxiliary protection blocks 63, the skin and the tissue are cut and peeled off to realize an effective and accurate skin cutting and sampling operation.

[0048] Preferably, a plurality of the cutting devices 2 each include a fixing bolt 21 and a cutting tool 22. A fixing hole is provided on the cutting tool 22. There are two fixing bolts 21. A plurality of threaded holes 56 are symmetrically provided on each of the plurality of adjusting plates 55. The plurality of threaded holes 56 are divided into several groups and are evenly arranged. The cutting tool 22 is fixed to the corresponding adjusting plate 55 by two fixing bolts 21. The two fixing bolts 21 are in threaded connection with the corresponding threaded holes 56. Sensors are provided on each of the plurality of cutting tools 22. The auxiliary protection device 6 includes an auxiliary protection column 61, a spring 62 and an auxiliary protection block 63. The auxiliary protection column 61 is provided at the lower end of the auxiliary cylinder 16. There are a plurality of auxiliary protection blocks 63. The plurality of auxiliary protection blocks 63 are equidistantly arranged around the outer side of the auxiliary protection column 61. There are a plurality of springs 62. The plurality of auxiliary protection blocks 63 are respectively connected to the outer side of the auxiliary protection column 61 by the corresponding springs 62. Rubber layers are provided on the outer sides of the plurality of auxiliary protection blocks 63. The lowest ends of the lower ends of the plurality of auxiliary protection blocks 63 are at the same height as the lowest end of the lower end of the sleeve 14. The start buttons 7 of the electric cylinder 41 and the drive motor 31 are provided on the side end of the storage block 13. The electric cylinder 41 and the drive motor 31 are electrically connected to the sensor;

[0049] Sensors are provided on several cutting tools 22. After several cutting tools 22 come into contact with the corresponding auxiliary protection blocks 63, the driving motor 31 and the electric cylinder 41 stop operating. Before cutting the patient's skin, after the sleeve 14 is pressed and covers the skin to be sampled, the distance between the skin and the cutting tool 22 can be monitored by the sensor. According to the cutting distance, the sleeve 14 can be taken upwards to expose the cutting tool. At this time, the medical staff can remove the corresponding cutting tool 22 by rotating the bolt to replace it or install the cutting tool 22 on different threaded holes 56 on the corresponding adjusting plate 55, so as to adjust the distance between the cutting tool 22 and the skin and make the skin cutting and sampling more accurate. On this premise, after several cutting tools 22 complete the cutting of the patient's skin sampling, the corresponding cutting tools 22 can also be removed in the above manner for disinfection and cleaning for subsequent reuse, avoiding cross-infection between patients and wasting the resources of the cutting tools 22. The skin distance detection sensor is an electronic device of a skin sampling device that can measure the distance between an object, usually a probe, and the skin surface. It uses various physical principles, such as optics, ultrasonic waves, capacitance, etc., to convert the distance information into an electrical signal, and then outputs data that can be read and analyzed through a processing circuit. The sensor model of this device can be the relevant sensor in Maxicheng MT3102, Micro-Epsilon OptoNCDT2300BL series of Germany, and Skin-SP skin tester of Crescent Italy. The detected distance can be displayed through Bluetooth connection;

[0050] After cutting is achieved by the contact of a plurality of cutting tools 22 with the corresponding auxiliary protection blocks 63, the sampled skin is in a circular state and is sampled. When the cutting tools 22 do not move upward to disengage from the corresponding auxiliary protection blocks 63, the cut and sampled skin will not fall out of the device at this time, so no contamination will occur. During subsequent sampling, after the electric cylinder 41 operates to drive the plurality of cutting tools 22 to move upward, the cut skin will fall out and be taken out, reducing the risk of infection transmission and preventing the spread of microorganisms: If the skin does not fall after cutting, it can effectively avoid the spread of various microorganisms such as bacteria, viruses, and fungi carried on the skin surface in the surrounding environment. For example, in environments such as hospital operating rooms or dressing rooms, after the patient's skin is cut, if the tissue does not fall, the pathogenic bacteria on the skin such as Staphylococcus aureus will not be contaminated on the operating table, instruments, or medical staff, thus reducing the possibility of cross-infection. Especially for those patients with low immunity, reducing the infection risk is particularly important. It also reduces iatrogenic infections: During medical operations such as biopsies or wound debridements, the non-falling of the tissue after skin cutting can prevent it from becoming a new source of infection. If tissue fragments accidentally fall into the wound, it may trigger an inflammatory response, delay wound healing, and even lead to serious infections. Keeping the cut skin in place can reduce the risk of iatrogenic infections, ensure the safety of patients during treatment, and ensure the quality of wound healing and maintain the integrity of the wound edge: When the skin does not fall after cutting, the wound edge can remain in a relatively complete state, which is very crucial for the initial healing of the wound because a complete wound edge is conducive to cell migration and tissue regeneration. For example, during skin suture surgery, the non-falling skin can be better aligned, making the suture process smoother and promoting primary wound healing, reducing the possibility of scar formation. Protect the internal tissue from external stimuli: The intact cut skin can serve as a natural barrier to protect the internal tissue of the wound from dust, chemical substances, and other pollutants in the external environment. During the wound healing process, the internal tissue requires a relatively stable and clean environment for repair. Avoiding skin falling helps maintain this good healing environment, and at the same time ensures the integrity and accuracy of the sample if it is used for detection to improve detection reliability: If skin cutting is for pathological examination or other laboratory tests, the non-falling of the skin after cutting can ensure the integrity of the sample. For example, in skin biopsies, a complete sample can more accurately reflect the scope, depth, and tissue structure characteristics of the lesion. Dermatologists can more accurately diagnose diseases such as skin cancer and inflammatory skin diseases by microscopic examination of the complete skin sample, improving the accuracy and reliability of the diagnosis.

[0051] The effects of the operator of the device holding it for operation and facilitating the change of the angles of the plurality of cutting tools 22;

[0052] Improve operation accuracy

[0053] Precise positioning of the sampling area: A skin sampling cutting device that is convenient for manual handling enables medical staff to better control the position where the device contacts the skin. When performing skin sampling, for example, when diagnosing skin diseases such as melanoma and skin inflammation and samples need to be obtained from specific lesion sites, medical staff can accurately place the cutting device on the target area based on their sense of touch and visual feedback, avoiding taking irrelevant tissues, thereby ensuring that the obtained samples can accurately reflect the lesion conditions and improving the accuracy of diagnosis.

[0054] Controlling the cutting depth and angle: Through the handheld device, medical staff can flexibly adjust the cutting depth and angle according to the sampling purpose and skin condition. For superficial skin lesions, such as seborrheic keratosis, where only epidermal layer samples are needed, medical staff can adjust the cutting device to a shallow cutting angle and appropriate depth; for some lesions that may involve the dermis, such as scleroderma, the cutting depth can be increased accordingly. This precise operation can reduce damage to the surrounding normal tissues while obtaining sufficient samples for diagnosis.

[0055] Enhancing operation flexibility

[0056] Adapting to different body parts: The skin morphology and position of the human body vary. Some parts, such as fingers, toes, and joints, have complex shapes and frequent movements, while some parts, such as the face and neck, have higher appearance requirements. The cutting device that is convenient for manual handling allows medical staff to easily apply the device to various body parts. For example, when sampling at the finger joint, medical staff can flexibly adjust the device holding posture and cutting direction according to the bending degree of the joint and the skin fold conditions to adapt to the special body surface morphology and successfully complete the sampling operation.

[0057] Coping with different patient conditions: The physical conditions of different patients, such as obesity degree, muscle tension, and skin relaxation degree, vary. The flexibility of manual handling enables the device to be effectively used on patients with different body types and physical states. For obese patients, the subcutaneous fat layer is thicker, and medical staff can hold the device more forcefully to ensure that the cutting can reach an appropriate depth; for children or the elderly, whose skin is more delicate, medical staff can complete the sampling through gentler operations to reduce the discomfort of the patients.

[0058] Improving operation efficiency

[0059] Rapid response to sampling requirements: In clinical work, time is of the essence. When urgent skin sampling is needed to determine the condition, such as in cases of suspected severe infectious skin diseases or skin malignancies, a manually accessible device enables medical staff to start the operation promptly. Without the need for complex installation or adjustment procedures, medical staff can directly pick up the device for sampling, saving precious time and enabling patients to receive diagnosis and subsequent treatment more quickly.

[0060] Simplify the operation process: Such devices are usually designed simply and are easy to operate, reducing the time for medical staff to learn and adapt to the device. Compared with some complex automated devices, manually operated devices do not require additional steps such as programming and debugging. For example, in daily dermatology outpatient clinics, medical staff can quickly use handheld skin sampling cutting devices to sample multiple patients, improving work efficiency and reducing patient waiting time.

[0061] Improve the patient experience

[0062] Reduce patients' nervousness: When medical staff can proficiently and flexibly use accessible devices for skin sampling, patients will feel the professionalism and controllability of the operation, thus reducing tension and fear. For example, medical staff can communicate with patients during the operation, allowing patients to see that the operation process of the device is simple and under control, which is particularly important for some patients sensitive to medical operations, such as children and patients with anxiety disorders.

[0063] Reduce patients' discomfort: The flexibility of manual operation allows medical staff to adjust the operation method according to the patient's feelings at any time. If the patient feels pain or discomfort during sampling, medical staff can immediately change the cutting force, speed or angle to minimize the patient's pain as much as possible. Moreover, since the device is easily accessible manually, medical staff can more precisely control the sampling process, avoid unnecessary tissue damage, and further reduce patients' discomfort.

[0064] The above are only embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A skin sampling device, characterized in that, It includes a hand-held device (1) for skin sampling by hand-held operation, a cutting device (2) for cutting and sampling the patient's skin, a rotary drive device (3) for driving the cutting device (2) to rotate and surround for cutting, a lifting adjustment device (4) for lifting the cutting device (2), an angle adjustment device (5) for adjusting the angle of the cutting device (2) to change, and an auxiliary protection device (6) for assisting the cutting device (2) in cutting shock absorption. The rotary drive device (3) is arranged inside the hand-held device (1), the lifting adjustment device (4) is arranged inside the hand-held device (1), and the lower end of the lifting adjustment device (4) is in sliding fit with the rotary drive device (3) up and down. There are several angle adjustment devices (5), and several of the angle adjustment devices (5) are respectively arranged equidistantly around the lower end of the lifting adjustment device (4). There are several cutting devices (2), and several of the cutting devices (2) are respectively arranged at the lower ends of the corresponding angle adjustment devices (5). The auxiliary protection device (6) is arranged inside the hand-held device (1) and is fixedly connected. Each of the several angle adjustment devices (5) includes an adjustment shaft (51), a main gear (52), a driven gear (53), an adjustment rack (54), and an adjustment plate (55). The lower ends of several lifting columns (46) are each provided with an adjustment groove (47). The adjustment shaft (51) is arranged in the corresponding adjustment groove (47) and is rotatably connected. The main gear (52) is sleeved on the adjustment shaft (51). The driven gear (53) is rotatably connected in the corresponding adjustment groove (47) and meshes with the corresponding main gear (52). The adjustment rack (54) is fixedly arranged in the corresponding mating groove (37), and the adjustment rack (54) meshes with the corresponding driven gear (53). The adjustment plate (55) is sleeved on the adjustment shaft (51) and is inclined. Each of the several cutting devices (2) includes a fixing bolt (21) and a cutting tool (22). The cutting tool (22) is provided with fixing holes. There are two fixing bolts (21). Several of the adjustment plates (55) are symmetrically provided with several threaded holes (56). The several threaded holes (56) are divided into several groups and are evenly arranged. The cutting tool (22) is fixed to the corresponding adjustment plate (55) by two fixing bolts (21). The two fixing bolts (21) are in threaded connection with the corresponding threaded holes (56). Each of the several cutting tools (22) is provided with a sensor.

2. The skin sampling device according to claim 1, characterized in that, The handheld device (1) includes a pressure plate (11), a clamping column (12), a storage block (13), a sleeve (14), a connecting cylinder (15) and an auxiliary cylinder (16). The clamping column (12) is arranged at the lower end of the pressure plate (11). The interior of the clamping column (12) is hollow. The storage block (13) is arranged at the lower end of the clamping column (12) and is in communication. The sleeve (14) is arranged at the lower end of the storage block (13) and is in communication. The connecting cylinder (15) is arranged at the lower end of the clamping column (12) and is in communication. The auxiliary cylinder (16) is arranged at the lower end of the connecting cylinder (15) and is in communication. The auxiliary cylinder (16) is rotatably connected to the connecting cylinder (15). Two sliding grooves (17) are symmetrically arranged on the auxiliary cylinder (16).

3. The skin sampling device according to claim 2, characterized in that, The rotation driving device (3) includes a driving motor (31), a driving wheel (32), a driven wheel (33), a belt (34), a rotating rod (35) and a rotating cylinder (36). The driving motor (31) is arranged at one end of the storage block (13). The output end of the driving motor (31) is arranged downward and passes through the storage block (13) and is located inside it. The driving wheel (32) is arranged on the output end of the driving motor (31) and is located inside the storage block (13). The driven wheel (33) is sleeved on the outer position of the lower end of the clamping column (12) and is rotatably connected. The belt (34) is sleeved on the driving wheel (32) and the driven wheel (33). There are two rotating rods (35). The two rotating rods (35) are symmetrically arranged at the lower end of the driven wheel (33). The rotating cylinder (36) is arranged at the lower ends of the two rotating rods (35). The rotating cylinder (36) is rotatably connected to the inner wall of the sleeve (14). A number of matching grooves (37) are arranged in a ring inside the rotating cylinder (36).

4. The skin sampling device according to claim 3, characterized in that, The lifting and adjusting device (4) includes an electric cylinder (41), a lifting shaft (42), a lifting block (43), a lifting ring (44), a lifting rod (45) and a lifting column (46). The electric cylinder (41) is arranged at the inner top of the clamping column (12). The lifting shaft (42) is arranged at the output end of the electric cylinder (41) and is rotationally connected. There are two lifting blocks (43), and the two lifting blocks (43) are symmetrically arranged at the lower position of the lifting shaft (42). One ends of the two lifting blocks (43) respectively pass through the corresponding sliding grooves (17) on the auxiliary sleeve (14) and are in up-and-down sliding fit with the corresponding sliding grooves (17). The inner part of the lifting ring (44) is connected to one ends of the two lifting blocks (43). There are several lifting rods (45), and the several lifting rods (45) are equidistantly arranged around the lower end of the lifting ring (44). There are several lifting columns (46), and the several lifting columns (46) are respectively arranged at the lower ends of the corresponding lifting rods (45). The several lifting columns (46) are respectively located in the corresponding fitting grooves (37) and are in up-and-down sliding fit with the corresponding fitting grooves (37).

5. The skin sampling device according to claim 2, characterized in that, The auxiliary protection device (6) includes an auxiliary protection column (61), a spring (62) and an auxiliary protection block (63). The auxiliary protection column (61) is arranged at the lower end of the auxiliary cylinder (16). There are several auxiliary protection blocks (63), and the several auxiliary protection blocks (63) are equidistantly arranged around the outside of the auxiliary protection column (61). There are several springs (62), and the several auxiliary protection blocks (63) are respectively connected to the outside of the auxiliary protection column (61) by the corresponding springs (62).

6. The skin sampling device according to claim 5, characterized in that, Rubber layers are provided on the outside of the several auxiliary protection blocks (63), and the lowest ends of the lower ends of the several auxiliary protection blocks (63) are at the same height as the lowest end of the lower end of the sleeve (14).

7. A skin sampling device according to claim 4, characterized in that, The start buttons (7) of the electric cylinder (41) and the drive motor (31) are arranged at the side end of the storage block (13), and the electric cylinder (41) and the drive motor (31) are electrically connected to the sensor.

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