Focus cleaning and scraping device for dermatological department

Abstract

The focus cleaning and scraping device for the dermatology department comprises a movable tool bit assembly, the movable tool bit assembly comprises a tool bit installation sliding seat, a tool bit and a spring buffering structure, the tool bit installation sliding seat is in sliding connection with a handle shell through a guide strip, and the detachable tool bit is fixed to the front end of the tool bit installation sliding seat; the scurf collecting assembly comprises a scurf collecting bin, a linkage structure and a rotary cleaning tool; the lubricating assembly comprises a storage bin, a piston type conveying mechanism and a flow guide channel, the movable tool bit assembly is designed, and through a spring buffering structure of the movable tool bit assembly, the buffering protection function can be achieved through dynamic balance of the resistance for cutting into a focus and the spring rigidity when a lower knife is used for cleaning and scraping; the device is particularly suitable for scraping thick cuticle focuses such as plantar warts and calluses, the fault tolerance during cutting is greatly improved, and the device has the function of automatically recycling scurf.

Description

Technical Field

[0001] This application relates to the technical field of skin lesion scraping, especially skin lesion scrapers in dermatology. Background Art

[0002] Skin lesion scrapers in dermatology generally refer to instruments used to remove epidermal or subcutaneous pathological tissues, such as curettes, scrapers, etc., mainly for: removing epidermal hyperplastic lesions such as warts, corns, seborrheic keratosis, etc.; removing necrotic tissues or pus (such as after abscess drainage); assisting in sampling biopsies. Scrapers usually have sharp edges and are used for harder horny hyperplasia.

[0003] Current scraping tools for horny layer lesions such as thick skin calluses and plantar warts, such as hard metal scrapers and curettes, have the following technical bottlenecks;

[0004] 1. The rigid cutter head is prone to iatrogenic injuries. Traditional scrapers rely on the operator's experience to control the force. However, the horny layer lesions of thick cutin have a high hardness. When cutting, if the angle deviates or the force is uneven, especially when first contacting the skin, if the force is applied too much, the cutter head is likely to directly cut into the dermis layer, resulting in the risk of bleeding or infection. The error tolerance rate during the cutting operation is low;

[0005] 2. Cross - contamination and low - efficiency operation are caused after the dander falls off. During the scraping process, the peeled horny debris will splash or fall off, and some of the accumulated debris will adhere to the surrounding of the lesion, affecting the subsequent scraping operation. Especially for dry skin lesions, there are more debris, and the scraping operation is time - consuming and troublesome.

[0006] That is, the prior art has the following technical problems. The error tolerance rate of ordinary scraping tools during the cutting operation is low. Therefore, a skin lesion scraper in dermatology is proposed for the above problems. Summary of the Invention

[0007] In this embodiment, a skin lesion scraper in dermatology is provided to solve the problem of low error tolerance rate of ordinary scraping tools in the prior art during the cutting operation.

[0008] According to one aspect of the present application, a skin lesion scraper in dermatology is provided, including:

[0009] A moving cutter head assembly, the moving cutter head assembly includes: a cutter head mounting slide, a cutter head and a spring buffer structure. The cutter head mounting slide is slidably connected to the handle housing through guide bars, and a detachable cutter head is fixed at the front end;

[0010] A dander collection assembly, the dander collection assembly includes a dander collection bin, a linkage structure and a rotary cleaning tool;

[0011] A lubrication assembly, the lubrication assembly includes: a storage bin, a piston - type delivery mechanism and a diversion channel.

[0012] Furthermore, the spring buffer structure consists of a control spring, a limit slider and a damping locking mechanism. By adjusting the elastic coefficient of the control spring and the damping locking threshold, the dynamic balance of the cutting-in pressure is achieved.

[0013] Furthermore, when the tool bit contacts the skin, the resistance triggers the retraction of the tool bit, and the control spring is compressed until the damping locking mechanism is released, ensuring a linear increase in pressure and reducing the requirements for operation error tolerance.

[0014] Furthermore, the linkage structure converts the retraction movement of the tool bit slide into the one-way rotation of the cleaning tool through a rack-gear transmission and a ratchet-pawl one-way transmission mechanism.

[0015] Furthermore, the cleaning tool consists of a rotating roller and a silica gel thin plate, and sweeps the dander to the collection bin synchronously as the tool bit moves.

[0016] Furthermore, the collection bin is provided with a transparent cover and a buckle for easy observation and cleaning.

[0017] Furthermore, when the tool bit retracts, the piston is pushed by the guide rod to extrude the lubricant, which is transported to the inner cavity of the tool bit sandwich through a one-way valve.

[0018] Furthermore, the lubricant is evenly released onto the skin surface through the diversion grooves on the bottom surface of the tool bit to meet the scraping requirements of dry lesions.

[0019] Through the above technical solutions of the present application, in order to solve the problem in the prior art that when a common rigid scraper performs scraping operation on the thick callus lesion position of the patient's skin, it is easy to damage the patient's normal skin due to the deviation of the cutting position or excessive force during cutting, the present application designs a movable tool bit assembly. Through the spring buffer structure of the movable tool bit assembly, during the cutting-in scraping, the buffer protection function can be realized through the dynamic balance of the resistance of cutting into the lesion and the spring stiffness. It is especially suitable for scraping operations on thick cutin layer lesions such as plantar warts and corns, greatly improving the error tolerance during cutting. At the same time, during the scraping operation of the present application, it also has the function of automatically recycling dander, avoiding the pollution caused by dander splashing. At the same time, no additional manual operation or power source is required, making it more convenient to scrape skin lesions. The present application also has an automatic lubrication effect. During the cutting operation, skin lubricant can be automatically released at the tool bit position, so as to effectively lubricate the skin and assist in scraping, and it is especially suitable for use on dry skin lesions. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 Schematic diagram of the overall structure of an embodiment of the present application;

[0022] Figure 2 Schematic diagram of the structure of the movable cutter head assembly of an embodiment of the present application;

[0023] Figure 3 Schematic diagram of the structure of the control spring of an embodiment of the present application;

[0024] Figure 4 Schematic diagram of the structure of the damping locking structure of an embodiment of the present application;

[0025] Figure 5 Schematic diagram of the structure of the dandruff collection assembly of an embodiment of the present application;

[0026] Figure 6 Schematic diagram of the structure of the dandruff cleaning tool of an embodiment of the present application;

[0027] Figure 7 Schematic diagram of the structure of the linkage structure of an embodiment of the present application;

[0028] Figure 8 Schematic diagram of the structure of the ratchet and pawl of an embodiment of the present application;

[0029] Figure 9 Schematic diagram of the structure of the lubrication assembly of an embodiment of the present application;

[0030] Figure 10 Connection diagram of the lubrication assembly of an embodiment of the present application;

[0031] Figure 11 Internal structure schematic diagram of the fixed cylinder of an embodiment of the present application;

[0032] Figure 12 Schematic diagram of the structure of the diversion groove of an embodiment of the present application.

[0033] In the figure:

[0034] Handle housing 1, guide bar 101;

[0035] Moving cutter head assembly 2, cutter head mounting slide 201, guide groove 202, cutter head 203, diversion groove 2031, sandwich inner cavity 2032, raised edge 204, limit slider 205, control spring 206, rectangular limit rod 207, fixed seat 208, sleeve 209, adjusting bolt 210, round head pin 211, push rod 212, limit spring 213;

[0036] Dandruff collection assembly 3, dandruff collection bin 301, bin cover 302, buckle 303;

[0037] Dandruff cleaning tool 304, rotating roller 3041, rotating shaft 3042, plastic frame 3043, silicone thin plate 3044;

[0038] Linkage structure 305, protective shell 3051, small gear 3052, fixed shaft 3053, outer sleeve 3054, large gear 3055, linkage gear 3056, rack 3057, guide seat 3058, ratchet 3059, ratchet pawl 30510, limit spring 30511;

[0039] Lubrication assembly 4, storage bin 401, injection port 402, fixed cylinder 403, moving piston 404, guide rod 405, output hose 406, input hose 407. Detailed implementation manners

[0040] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0041] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0042] In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0043] Moreover, in addition to being used to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0044] In addition, the terms "mounted", "arranged", "provided with", "connected", "coupled", "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] Please refer to Figure 1 as shown, a dermatological lesion scraping device, the dermatological lesion scraping device includes:

[0046] A handle housing 1, a moving cutter head assembly 2 is installed in the inner cavity of the handle housing 1, the moving cutter head assembly 2 can move in the inner cavity of the handle housing 1, and a spring buffer structure is arranged at the moving cutter head assembly 2, and the spring buffer structure is used to buffer the cutting pressure when the blade cuts into the lesion;

[0047] A dander collection assembly 3, the dander collection assembly 3 is fixedly arranged on the outer surface of the handle housing 1, one end of the dander collection assembly 3 extends to the moving cutter head assembly 2, and the dander collection assembly 3 is used to automatically recycle and collect dander when cutting the dead skin of the lesion;

[0048] A lubrication assembly 4, the lubrication assembly 4 is arranged in the inner cavity of the handle housing 1, the lubrication assembly 4 is fixedly connected to the moving cutter head assembly 2, and the lubrication assembly 4 is used to automatically release skin lubricant at the cutter head when cutting the dead skin of the lesion;

[0049] Through the above technical solution, with the spring buffer structure of the moving cutter head assembly 2, during the downward cutting and scraping operation, the function of buffer protection can be achieved through the dynamic balance between the resistance of cutting into the lesion and the spring stiffness. It is particularly suitable for scraping operations on thick cutin layer lesions such as plantar warts and corns, greatly improving the fault tolerance during the downward cutting. At the same time, during the scraping operation of this application, it also has the function of automatically collecting dandruff, avoiding pollution caused by dandruff splashing. Moreover, no additional manual operation or power source is required, making it more convenient to scrape skin lesions. This application also has an automatic lubrication effect. When performing downward cutting, a skin lubricant can be automatically released at the cutter head position, which can effectively lubricate the skin and assist in the scraping operation, and is particularly suitable for use on dry skin lesions.

[0050] As a further technical solution, please refer to Figure 2 、 Figure 3 and Figure 4 as shown; the moving cutter head assembly 2 further includes a cutter head mounting slide 201, a guide groove 202, and a cutter head 203. A guide bar 101 is fixedly arranged in the inner cavity of the handle housing 1. Guide grooves 202 that are slidably engaged with the guide bar 101 are provided on both side walls of the cutter head mounting slide 201. A cutter head 203 is fixedly connected to the front end of the cutter head mounting slide 201, and a spring buffer structure is fixedly connected to the upper end of the cutter head mounting slide 201.

[0051] The cutter head 203 is fixed to the cutter head mounting slide 201 by bolts and is detachable. When cleaning, disinfecting, and maintaining in the later stage are required, the bolts can be unscrewed to separate the cutter head 203 from the cutter head mounting slide 201, facilitating later work such as disinfection and maintenance;

[0052] The spring buffer structure includes a limit slider 205, a control spring 206, a rectangular limit rod 207 and a fixed seat 208. The limit slider 205 is arranged in the inner cavity of the handle housing 1 and is slidably matched with the handle housing 1. One end of the control spring 206 is fixedly connected to both sides of the limit slider 205, and the other end of the control spring 206 is fixedly connected to the tool head mounting slide 201. A rectangular limit rod 207 is fixedly connected to one side of the limit slider 205. The fixed seat 208 is fixedly arranged in the inner cavity of the handle housing 1. The rectangular limit rod 207 penetrates through the fixed seat 208 and is slidably matched with the fixed seat 208. A damping locking structure is arranged inside the fixed seat 208, and the damping locking section structure is used to perform damping locking on the rectangular limit rod 207. Through this technical solution, when medical staff perform scraping operations on the skin lesions of patients, the position of the tool head is controlled by holding the handle housing 1, and the tool is lowered to the scraping position of the lesion. When the tool touches the skin during lowering, the contact between the tool head and the skin generates resistance, and the resistance causes the tool head 203 to retract. At this time, the control spring 206 retracts and generates elastic force, and the elastic force of the control spring 206 is in a balanced state with the pressure of the downward tool. Therefore, when cutting and scraping downward, the pressure exerted by the tool head on the skin gradually increases until the cutting pressure is reached, and the tool head enters the skin lesion for cutting and scraping. Compared with ordinary rigid tool heads, in this application, the pressure of the tool head on the skin has a gradually increasing process, thereby greatly improving the error tolerance rate during tool lowering. Even if there are certain errors in the angle or position during tool lowering, at the beginning, the pressure of the tool head on the skin is still relatively small and hardly causes harm to the skin. It is especially suitable for novice medical staff and greatly improves the error tolerance rate during scraping and tool lowering.

[0053] Preferably, the control spring 206 is a spring with an elastic coefficient of 5-8 N / mm;

[0054] The damping locking structure includes a round head pin 211, a push rod 212, a limiting spring 213 and an adjusting bolt 210. A circular groove is formed in the side wall of the rectangular limiting rod 207. An inner cavity is provided inside the fixed seat 208. The round head pin 211 is slidably connected in the inner cavity of the fixed seat 208. One side of the fixed seat 208 is fixedly connected with a sleeve 209. One end of the sleeve 209 extends outside the wall of the handle housing 1. The adjusting bolt 210 is threadedly connected to the sleeve 209. One end of the adjusting bolt 210 extends into the inner cavity of the fixed seat 208. One end of the adjusting bolt 210 is rotatably connected to one end of the push rod 212. The other end of the push rod 212 is fixedly connected to one end of the limiting spring 213. The other end of the limiting spring 213 is fixedly connected to the round head pin 211. Through this technical solution, due to the elastic force of the limiting spring 213, the round head end of the round head pin 211 can be pressed tightly in the circular groove of the rectangular limiting rod 207, thereby achieving the damping locking function for the rectangular limiting rod 207. When the elastic force generated by the compression of the control spring 206 reaches the critical value of damping locking, the round head pin 211 will be squeezed and retracted, thus separating from the circular groove. The rectangular limiting rod 207 can slide on the fixed seat 208, enabling the tool head to continue to retract, playing a protective role. Through the setting of the damping locking structure, the maximum pressure during cutting can be controlled. When the maximum pressure is exceeded, the function of sliding pressure reduction can be achieved. Medical staff can adjust the threshold of damping locking according to different skin lesion conditions. During adjustment, by manually rotating the adjusting bolt 210, the position of the push rod 212 is adjusted, thereby adjusting the compression amount of the limiting spring 213, and thus adjusting the pressure of the round head pin 211 pressing the circular groove of the rectangular limiting rod 207, realizing the function of adjusting the damping threshold.

[0055] As a specific technical solution, please refer to Figure 5 and Figure 6 as shown; the dander collection assembly 3 includes a dander collection bin 301, a bin cover 302, a buckle 303, a dander cleaning tool 304 and a linkage structure 305. The dander collection bin 301 is fixedly arranged on the upper surface of the handle housing 1. A dander inlet is provided at one end of the dander collection bin 301. The dander inlet extends to the upper surface of the tool head 203 and is in sliding contact with the upper surface of the tool head 203. A dander cleaning tool 304 is arranged at the dander inlet. A linkage structure 305 is fixedly connected to the side wall of the dander collection bin 301. The linkage structure 305 is connected to the dander cleaning tool 304. The linkage structure 305 is used to automatically move the dander cleaning tool 304 to clean dander when the tool head 203 contacts the skin and slides.

[0056] On both sides of the cutter head 203, raised edges 204 extend. Through this technical solution, the raised edges 204 can play a role in guiding dander. During scraping, the dander will move to the upper surface of the cutter head 203 and, along with the movement of the cutter head 203, drive the dander to the dander cleaning tool 304. Through the movement of the dander cleaning tool 304, the dander is cleaned and enters the inner cavity of the dander collection bin 301 for recycling, realizing the function of automatic recycling. It is not necessary for medical staff to manually recycle the dander, which is more convenient and improves the scraping efficiency of skin lesions.

[0057] The dander cleaning tool 304 includes a rotating roller 3041, a rotating shaft 3042, a plastic frame 3043, and a silica gel thin plate 3044. The rotating roller 3041 is fixedly connected to the arc-shaped wall of the rotating shaft 3042. The rotating shaft 3042 is arranged at the opening of the dander collection bin 301 and is rotatably connected to the dander collection bin 301. A number of plastic frames 3043 are fixedly connected to the arc-shaped wall of the rotating roller 3041, and a silica gel thin plate 3044 is fixedly connected to the plastic frame 3043. Through this technical solution, the setting of the plastic frame 3043 plays a supporting role, and the silica gel thin plate 3044 provides a soft cleaning effect. Through the rotation of the dander cleaning tool 304, the dander at the cutter head 203 can be cleaned and enter the inner cavity of the dander collection bin 301.

[0058] Furthermore, a bin cover 302 is hingedly connected to the side wall of the dander collection bin 301. A buckle 303 is fixedly connected to one end of the bin cover 302, and a card slot cooperating with the buckle 303 is provided on the side wall of the dander collection bin 301. The bin cover 302 is made of a transparent material. Through this technical solution, the transparent bin cover 302 can facilitate observing the amount of dander inside the dander collection bin 301, which is convenient for timely cleaning. During cleaning, the bin cover 302 can be flipped open to clean the internal dander and perform disinfection treatment.

[0059] As a preferred technical solution, please refer to Figure 7 and Figure 8As shown, the linkage structure 305 includes a protective case 3051, a pinion gear 3052, a fixed shaft 3053, an outer sleeve 3054, a large gear 3055, a linkage gear 3056, a rack 3057, and a guide seat 3058. The protective case 3051 is fixedly arranged on the side wall of the dander collection bin 301. A pinion gear 3052 is rotatably connected in the inner cavity of the protective case 3051. One end of the pinion gear 3052 is fixedly connected to the rotating shaft 3042. A fixed shaft 3053 is rotatably connected in the inner cavity of the protective case 3051. An outer sleeve 3054 is rotatably connected to the arc-shaped wall of the fixed shaft 3053. A linkage gear 3056 is fixedly connected to the arc-shaped wall of the outer sleeve 3054. A large gear 3055 is fixedly connected to the arc-shaped wall of the fixed shaft 3053. The large gear 3055 meshes with the pinion gear 3052. A guide seat 3058 is fixedly connected in the inner cavity of the protective case 3051. A guide chute is formed on the rack 3057. The guide seat 3058 extends to the guide chute of the rack 3057 and is slidably matched with the rack 3057. The rack 3057 meshes with the linkage gear 3056. The rack 3057 is L-shaped. One end of the rack 3057 is fixedly connected to the tool head mounting slide 201.

[0060] Further, a ratchet wheel 3059 is fixedly connected to the arc-shaped wall of the fixed shaft 3053. A ratchet pawl 30510 is rotatably connected to the inner arc-shaped wall of the outer sleeve 3054. One end of the ratchet pawl 30510 extends to the ratchet wheel 3059. A limiting spring 30511 is fixedly connected to the side wall of the ratchet pawl 30510. By this technical solution, when the tool head 203 contacts the skin for lesion scraping, due to the gradually increasing downward pressure, at this time, the tool head 203 will also continuously retract. At the same time, the tool head mounting slide 201 retracts and moves. Since the movement of the tool head mounting slide 201 can drive the rack 3057 to move, thereby driving the linkage gear 3056 to rotate, and then driving the outer sleeve 3054 to rotate, as Figure 7 and Figure 8From this perspective, in addition, the sleeve 3054 rotates counterclockwise. Then, through the ratchet and pawl structure, the torque can be transmitted to the fixed shaft 3053, driving the fixed shaft 3053 to rotate. Thereby, the large gear 3055 is driven to rotate counterclockwise, and then the small gear 3052 is driven to rotate clockwise. Thus, the rotating shaft 3042 is driven to rotate clockwise, and then the dander cleaning tool 304 is driven to rotate clockwise. Through the clockwise rotation of the dander cleaning tool 304, the dander is cleaned and enters the inner cavity of the dander collection bin 301. When the cutter head is separated from the skin, due to the action of the spring, the cutter head extends. At this time, the rack 3057 moves in the reverse direction, causing the linkage gear 3056 to rotate clockwise. Thus, the torque cannot be transmitted to the fixed shaft 3053, and it idles, avoiding the reverse rotation of the silica gel thin plate 3044. Through the above description, it can be seen that in this application, through the dander collection component 3, the dander can be automatically collected during the scraping of the lesion, without the need for an additional power source and manual operation, and it is suitable for popularization and use.

[0061] As a preferred technical solution, please refer to Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, the lubrication component 4 includes a storage bin 401, a fixed cylinder 403, a moving piston 404, and a guide rod 405. The storage bin 401 is fixedly arranged at one end of the inner cavity of the handle housing 1, and the inner cavity of the storage bin 401 is filled with skin lubricant.

[0062] Preferably, the skin lubricant is one of medical mineral oil, hyaluronic acid gel, glycerin, and petrolatum;

[0063] A filling port 402 is arranged on the storage bin 401, and a sealing cover is threadedly connected to the filling port 402. Through this technical solution, when the lubricant is insufficient, the lubricant can be supplemented and injected through the filling port 402.

[0064] The fixed cylinder 403 is fixedly arranged at the side wall of the limit slider 205, and a movable piston 404 is slidably connected in the inner cavity of the fixed cylinder 403, and one end of a guide rod 405 is fixedly connected to one side of the movable piston 404, and the other end of the guide rod 405 penetrates the inner cavity wall of the fixed cylinder 403 and extends outside the wall, and one end of the guide rod 405 is fixedly connected to the side wall of the cutter head mounting slide 201, and an input hose 407 and an output hose 406 are fixedly connected in the inner cavity of the fixed cylinder 403, and a one-way valve is installed on the input hose 407 and the output hose 406, and one end of the input hose 407 extends to the inner cavity of the storage bin 401, and one end of the output hose 406 extends to the cutter head 203, and the interior of the cutter head 203 is provided with an even sandwich inner cavity 2032, a plurality of guide grooves 2031 are provided on the bottom surface of the blade head 203, and the guide grooves 2031 are connected with the interlayer inner cavity 2032, and the output hose 406 is connected with the interlayer inner cavity 2032. The inner cavity of the fixed cylinder 403 is filled with skin lubricant. When the blade head contacts the skin for scraping, the retraction of the blade head can drive the guide rod 405 to move, thereby pushing the moving piston 404 to move in the inner cavity of the fixed cylinder 403, so that the lubricant in the inner cavity of the fixed cylinder 403 is pushed and transported to the interlayer inner cavity 2032, and then released through the guide grooves 2031, so that the lubricant can be evenly applied to the skin position, which has the beneficial effect of automatic lubrication, does not require an additional power source, and is particularly suitable for use on thick calloused dry skin lesions.

[0065] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Dermatological lesion scraper, characterized by: A handle housing (1) having an inner cavity provided with a guide bar (101); A movable cutter head assembly (2) is slidably connected to the guide bar (101), comprising a cutter head mounting slide (201), a detachable cutter head (203) and a spring buffer structure, wherein the spring buffer structure dynamically adjusts the cutter head cutting pressure by controlling a spring (206) and a damping locking mechanism; A dandruff collecting assembly (3) is fixed to the outer surface of the handle housing (1), comprising a dandruff collecting bin (301) and a linkage structure (305), wherein the linkage structure (305) converts the linear movement of the cutter head mounting slide (201) into a unidirectional rotational movement of the dandruff cleaning tool (304); The lubrication assembly (4) is arranged in the inner cavity of the handle housing (1), and comprises a storage bin (401) and a piston-type delivery mechanism. The piston-type delivery mechanism is linked to the cutter head mounting slide (201) via a guide rod (405) to release lubricant to the cutter head (203).

2. The dermatological lesion scraper according to claim 1, characterized in that: The cutter head (203) is detachably connected to the cutter head mounting slide (201) via bolts, and a guide groove (2031) is provided on its bottom surface, and an interlayer inner cavity (2032) connected to the lubrication component is provided inside.

3. The dermatological lesion scraper according to claim 1, characterized in that: The spring buffer structure comprises: A limit slider (205) is slidably disposed in the inner cavity of the handle housing (1), and is connected to control springs (206) on both sides; A rectangular limiting rod (207), one end of which is fixed to the limiting slider (205), and the other end of which passes through the fixing seat (208) and cooperates with the damping locking mechanism; The damping locking mechanism comprises an adjusting bolt (210), a push rod (212) and a limiting spring (213), and the locking force of the limiting spring (213) on the rectangular limiting rod (207) is changed by rotating the adjusting bolt (210).

4. The dermatological lesion scraper according to claim 3, characterized in that: The elastic coefficient of the control spring (206) is 5-8 N / mm, the adjusting bolt (210) is threadedly connected to the fixing seat (208) through a sleeve (209), and the push rod (212) is rotationally connected to the adjusting bolt (210).

5. The dermatological lesion scraper according to claim 1, characterized in that: The linkage structure (305) comprises: A rack (3057) fixed to the cutter head mounting slide (201); The linkage gear (3056) meshes with the rack (3057) and drives the fixed shaft (3053) in one direction through the ratchet (3059) and the pawl (30510); The fixed shaft (3053) meshes with the pinion (3052) via the large gear (3055), driving the rotating shaft (3042) to drive the dandruff cleaning tool (304) to rotate in one direction.

6. The dermatological lesion scraper according to claim 1, characterized in that: The dandruff collection bin (301) comprises: The transparent bin cover (302) is snap-fitted to the side wall of the collection bin via a snap buckle (303); The dandruff cleaning tool (304) is composed of a rotating roller (3041), a plastic frame (3043) and a silicone sheet (3044), wherein the silicone sheet (3044) is in sliding contact with the upper surface of the blade head (203).

7. The dermatological lesion scraper according to claim 1, characterized in that: The piston-type delivery mechanism of the lubrication assembly (4) comprises: A fixed cylinder (403) is fixed to the side wall of the limit slider (205) and is provided with a movable piston (404); A guide rod (405), one end of which is connected to the movable piston (404) and the other end of which is fixed to the cutter head mounting slide (201); The input hose (407) and the output hose (406) are both provided with a one-way valve and are respectively connected to the storage bin (401) and the inner cavity (2032) of the cutter head interlayer.

8. The dermatological lesion scraper according to claim 1, characterized in that: The storage bin (401) is provided with an injection port (402) and a threaded sealing cover.

9. The dermatological lesion scraper according to claim 1, characterized in that: The cutter head (203) is provided with raised edges (204) on both sides for guiding the dander to move to the dander cleaning tool (304), and the cutter head mounting slide (201) is slidably matched with the guide bar (101) through the guide groove (202).

10. The dermatological lesion scraper according to claim 1, characterized in that: The guide rod (405) is fixedly connected to the side wall of the cutter head mounting slide (201), and when the cutter head retracts, it pushes the movable piston (404) to compress the lubricant in the inner cavity of the fixed cylinder (403), and transports it to the guide groove (2031) through the output hose (406).

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