Clinical wart scraping device and method for dermatology department

Abstract

The invention relates to the technical field of wart scraping equipment, in particular to a dermatological clinical wart scraping device and method.The device comprises a curette body, the curette body is composed of a holding part and a scraping part, and the holding part and the scraping part respectively comprise a holding rod and a scraping rod; a scraping body and a positioning cutting piece are arranged at the bottom of the scraping rod, a functional cavity is formed in the scraping rod, and a driving assembly is arranged in the functional cavity; the positioning cutting part comprises a positioning rod, a sliding cavity is formed in the positioning rod, a first piston is arranged in the sliding cavity, a push rod is fixedly connected to the top of the first piston, and a deflector rod is hinged to the top end of the push rod and hinged to a fulcrum rod. The bottom of the sliding cavity is in sliding fit with a second piston, and one side of the second piston is fixedly connected with a cutting blade. The wart removing device is simple and easy to operate, the scraping action and the opposite-side cutting action are cooperatively completed by controlling the scraping movement of the scraping body and the extension of the cutting blade, the scraping frequency required for thoroughly removing warts is reduced, and normal skin injury caused by repeated operation is reduced.

Description

Technical Field

[0001] This invention relates to the field of wart removal equipment technology, specifically to a dermatological clinical wart removal device and method. Background Technology

[0002] In dermatological clinics, curettage of warts (such as common warts and condyloma acuminata) is a common physical therapy method. This method typically uses instruments such as curettes to mechanically peel the wart tissue from its base. The core of the procedure is to thoroughly remove the lesion while protecting the surrounding normal skin tissue to the greatest extent possible, thereby reducing the risks of intraoperative bleeding, postoperative infection, and scarring.

[0003] Currently, traditional curettes are widely used in clinical practice. A traditional curette is a circular, semi-sharp blade (such as the Beliveau curette). The standard procedure is as follows: the surgeon first marks the lesion boundary, then, holding the curette, relies on personal experience and feel to repeatedly scrape the wart tissue in different directions, centripetally, until all visible wart tissue is completely removed. However, this traditional method has several inherent drawbacks: it relies heavily on the surgeon's personal experience and feel for repeated operations, making it difficult to maintain stable and sufficient control over the scraping boundary and depth. This can easily lead to the scraping area deviating from the intended lesion area or cutting too deeply, resulting in unnecessary damage to surrounding normal skin tissue. This is a major operational defect affecting postoperative recovery quality and increasing the risk of scar formation.

[0004] Therefore, it is necessary to propose a dermatological clinical wart scraping device and method to solve this problem. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a dermatological clinical wart scraping device and method, which controls the scraping motion of the scraping body and the extension of the cutting blade to coordinate the scraping action with the cutting action on the opposite side, thereby reducing the number of scraping operations required to completely remove the warts and reducing normal skin damage caused by repeated operations.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A dermatological clinical wart scraping device includes a scraper body, the scraper body is composed of a holding rod and a scraping rod, the bottom of the scraping rod is symmetrically provided with a scraping body and a positioning cutting component, the scraping body is annular, and a functional cavity is provided in the lower part of the scraping rod, and a driving component for driving the scraping body to swing to scrape off the wart is provided in the functional cavity.

[0007] The positioning and cutting component includes an "L"-shaped positioning rod with a sliding cavity inside. A first piston is slidably fitted inside the sliding cavity. A push rod is fixedly connected to the top of the first piston. The top of the push rod extends through the bottom wall of the functional cavity and into the functional cavity, where it is vertically hinged to a lever. The other end of the lever is hinged to a drive assembly. A fulcrum rod is hinged to the bottom of the lever. The bottom end of the fulcrum rod is fixedly connected to the bottom wall of the functional cavity. The fulcrum rod and the lever form a lever structure.

[0008] A second piston is slidably fitted at the bottom of the sliding cavity, forming a sealed cavity between the second piston and the first piston. A cutting blade is fixedly connected to the side of the second piston away from the first piston, and the other side of the cutting blade can pass through one side of the sliding cavity and extend to the outside of the sliding cavity.

[0009] The technical principle of the above solution is as follows: the drive component drives the scraping body to move toward the wart in an arc to cut it, while the cutting blade extends out of the sliding cavity to cut the root of the wart on the opposite side, thereby achieving quick scraping and cutting of the wart and reducing the number of scrapings required when scraping the wart.

[0010] The above approach has the following beneficial effects:

[0011] 1. This method uses a positioning rod that fits against the edge of the lesion as a physical reference, combined with an extended cutting blade, to create a limiting boundary on the opposite side of the scraping body's movement path. This effectively prevents the scraping body from going beyond the boundary or penetrating too deeply, confining the scraping operation primarily within the wart tissue area, helping to protect the surrounding normal skin structure and reducing the probability of postoperative scarring.

[0012] 2. This solution, by synchronously controlling the arc-shaped scraping motion of the scraping body and the linear extension motion of the cutting blade, enables the scraping action and the opposite cutting action to be completed in a single drive process, thereby significantly reducing the number of scrapings required to completely remove the warts and reducing normal skin damage caused by repeated operations.

[0013] Furthermore, the drive assembly includes a controller fixedly connected to the top wall of the sliding cavity, and the controller is signal-connected to a display screen fixedly connected to the grip rod;

[0014] The controller signal is connected to a motor fixedly connected to the functional cavity. The motor output shaft is coaxially fixedly connected to a fan-shaped lever. A swing rod is fixedly connected to the bottom of the fan-shaped lever. The bottom end of the swing rod is detachably connected to the top of the scraper. The side of the fan-shaped lever near the lever is hinged to the lever. The bottom of the positioning rod is provided with a swing groove corresponding to the swing rod.

[0015] Beneficial effects: The fan-shaped blade design better reflects the centripetal scraping motion during actual wart removal, thus conforming to the actual wart removal operation. At the same time, it reduces the problem of insufficient scraping caused by individual differences in experience due to manual operation by medical staff.

[0016] Furthermore, a negative pressure pump is installed inside the gripping rod, and the negative pressure pump is connected to a negative pressure pipe. The other end of the negative pressure pipe is detachably connected to a delivery pipe fixedly connected inside the scraping rod.

[0017] A through hole is provided on one side of the upper part of the negative pressure chamber, which is connected to the conveying pipe. A negative pressure chamber is provided on the side of the positioning rod near the scraper, and several negative pressure holes are provided on the side of the negative pressure chamber near the scraper.

[0018] Beneficial effects: The negative pressure suction increases skin tension during scraping, making the warts easier to separate and thus improving the thoroughness of a single scraping; in addition, negative pressure helps to stabilize and expose the root of the wart, making the scraping action more controllable.

[0019] Furthermore, a slide rod is fixedly connected to the side of the push rod near the negative pressure chamber. The other end of the slide rod extends through the side wall of the sliding chamber into the negative pressure chamber and is fixedly connected to a baffle. The baffle fits against the side wall of the negative pressure chamber near the through hole and slides in cooperation with the negative pressure chamber. The baffle is provided with several blocking holes with the same diameter as the negative pressure hole. The side wall of the sliding chamber is provided with a sliding groove corresponding to the position of the slide rod.

[0020] Beneficial effects: The downward movement of the push rod automatically drives the baffle to slide, gradually misaligning the blocking hole and the negative pressure hole, thereby automatically and steadily increasing the negative pressure adsorption force as the scraping process progresses. This not only makes the coordination between negative pressure and scraping action more suitable for the actual needs of the operation stage, but also avoids additional control links and ensures operational continuity.

[0021] Furthermore, telescopic plates are fixedly connected to the top and bottom walls of the sliding groove, and the telescopic plates are fixedly connected to the sliding rod on the side closest to each other.

[0022] Beneficial effects: The design of the telescopic plate can effectively isolate the negative pressure chamber and the sliding chamber, preventing negative pressure from leaking into the sliding chamber and interfering with the normal movement of the first and second pistons, thereby ensuring the stability and reliability of the cutting blade extension and return process.

[0023] Furthermore, a first elastic element is fixedly connected to the push rod, and a second elastic element is fixedly connected to one side of the cutting blade inside the sliding cavity. Both the first and second elastic elements are fixedly connected to the inner wall of the sliding cavity.

[0024] Beneficial effects: The first and second elastic elements can automatically pull the push rod back to its original position and drive the cutting blade to retract after the drive assembly stops working, so that the internal components can be quickly reset and prepared for the next operation.

[0025] Furthermore, a limiting block is fixedly connected to the bottom of the sliding cavity, and the limiting block is located on the side of the second piston away from the cutting blade.

[0026] Beneficial effects: The limit block restricts the maximum stroke of the second piston retraction, ensuring that the cutting blade stays in the predetermined position each time it retracts, preventing excessive retraction from affecting subsequent extension, and preventing it from accidentally leaving the working area.

[0027] Furthermore, the cutting blade is wing-shaped on the side near the scraper.

[0028] Beneficial effects: The wing-shaped design allows the curved edge of the cutting blade to better conform to the natural contour of the wart root when extended, resulting in a smoother cut and a more complete cut; at the same time, its structure helps guide tissue separation during the cutting process, reducing traction and damage to surrounding normal tissue, and improving the thoroughness and controllability of the cut.

[0029] Furthermore, a method for dermatological clinical wart removal includes the following steps:

[0030] Step 1, Preoperative preparation: Perform routine disinfection and anesthesia on the affected area, select and install the appropriate size scraper according to the size of the wart, and connect the handle to the scraper.

[0031] Step 2, positioning the scraper body: Hold the handle and bring the lower end of the scraping rod close to the wart, while keeping the scraper body perpendicular to the skin surface; align the bottom end of the positioning rod with and attach it to the pre-marked edge of the lesion as a physical reference for scraping;

[0032] Step 3, scraping operation: The motor and negative pressure pump are started simultaneously by the controller; the motor drives the scraper to perform an arc-shaped scraping action from bottom to top, while the lever structure pushes the cutting blade to extend linearly, and performs coordinated cutting from the opposite side of the wart; during this process, the downward movement of the push rod synchronously drives the baffle to gradually cover the negative pressure hole, so that the negative pressure adsorption force gradually increases with the scraping process;

[0033] Step 4, Supplementary scraping operation: For irregular warts, after a single stroke, adjust the angle of the scraper body and repeat the operation as in Step 3; for warts with deep roots, tilt the scraper body to make the scraping body go deeper, while maintaining negative pressure suction, and perform localized key scraping.

[0034] Step 5, Postoperative care and repositioning: After curettage, the motor and negative pressure pump are turned off via the controller; the patient's wound is treated with hemostatic agent to stop bleeding and covered with sterile dressing;

[0035] The grip bar integrates a mechanical sensing system, which is used to collect contact force and invasive depth data in real time during the scraping operation. The contact force and invasive depth data are processed by the controller and dynamically displayed on the display screen on the grip bar handle, providing doctors with real-time visual feedback on the force and depth of the operation.

[0036] Beneficial effects: Scraping and cutting on the opposite side are completed simultaneously in one operation, reducing the number of repeated scrapings; the negative pressure adsorption force gradually increases during operation, ensuring the scraping effect in the later stage while avoiding traction damage to normal tissue in the early stage; the integrated mechanical sensing system monitors the force and depth in real time, providing quantitative feedback for the operation and improving the standardization and safety of the operation.

[0037] Furthermore, in step five, the mechanical sensing system includes a pressure sensor and a displacement sensor;

[0038] The pressure sensor is located at the connection between the scraper and the swing arm and is used to collect data on the contact force applied to the wart tissue by the scraper during the scraping operation.

[0039] A displacement sensor, installed on the inner wall of the sliding cavity, is used to collect the linear extension displacement of the cutting blade, which corresponds to the penetration depth data.

[0040] Beneficial effects: By installing a pressure sensor at the connection between the scraper and the swing arm, the force applied by the scraper is monitored and fed back in real time, helping the operator control the scraping force within an effective and safe range, avoiding damage to normal tissue due to excessive force or incomplete scraping due to insufficient force. By installing a displacement sensor on the inner wall of the sliding cavity, the extension displacement of the cutting blade is monitored in real time, allowing the operator to grasp and control the cutting depth, effectively reducing the risk of accidental injury to deep subcutaneous healthy tissue. Attached Figure Description

[0041] Figure 1 This is an isometric view of an embodiment of the dermatological clinical wart scraping device of the present invention;

[0042] Figure 2 This is an axonometric view of the scraping body in an embodiment of the dermatological clinical wart scraping device of the present invention;

[0043] Figure 3 This is a frontal sectional view of the functional cavity in an embodiment of the dermatological clinical wart scraping device of the present invention;

[0044] Figure 4 This is an isometric view of the baffle in an embodiment of the dermatological clinical wart scraping device of the present invention;

[0045] Figure 5 This is a frontal sectional view of the sliding cavity in an embodiment of the dermatological clinical wart scraping device of the present invention;

[0046] Figure 6 This is a front view of the negative pressure pump in an embodiment of the dermatological clinical wart scraping device of the present invention.

[0047] Figure 7 This is a schematic diagram illustrating the steps of an embodiment of the dermatological clinical wart scraping method of the present invention.

[0048] The reference numerals in the accompanying drawings of the instruction manual include: 1. Holding rod; 2. Scraping rod; 3. Swinging rod; 4. Scraping body; 5. Swinging groove; 6. Positioning rod; 7. Negative pressure hole; 8. Cutting blade; 9. Functional cavity; 10. Motor; 11. Fan-shaped lever; 12. Lever; 13. Pivot rod; 14. Push rod; 15. First piston; 16. Sliding cavity; 18. Second piston; 19. Limiting block; 20. Through hole; 21. Sliding rod; 22. Negative pressure cavity; 23. Baffle; 24. Blocking hole; 25. Telescopic plate; 26. Controller; 27. Negative pressure pump; 28. Negative pressure pipe; 29. ​​Transmission pipe. Detailed Implementation

[0049] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0052] The following detailed description illustrates the specific implementation method:

[0053] Example 1:

[0054] As attached Figure 1 As shown: A dermatological clinical wart scraping device includes a scraper body, which is composed of a holding rod 1 and a scraping rod 2. The bottom end of the holding rod 1 is detachably connected to the top end of the scraping rod 2.

[0055] refer to Figure 2 The scraper bar 2 has a scraper body 4 and a positioning cutter symmetrically arranged at its bottom. The scraper body 4 is ring-shaped (refer to the Belvoir scraper). Figure 3 The lower part of the scraping rod 2 is provided with a functional cavity 9, and the functional cavity 9 is provided with a drive component for driving the scraping body 4 to swing to scrape off the wart.

[0056] Existing techniques for removing warts often involve first defining the edges of the lesion and then repeatedly scraping the entire wart centripetally with a curette. This process has several drawbacks: firstly, scraping away the edges can damage surrounding healthy skin and cause scarring; secondly, repeated scraping further increases the risk of skin damage. To address this issue, this solution includes an "L"-shaped positioning rod 6 with a sliding cavity 16 inside. A first piston 15 slides vertically within the sliding cavity 16. A push rod 14 is welded to the top of the first piston 15. The top of the push rod 14 extends through the bottom wall of the functional cavity 9 and is vertically hinged to a lever 12. The other end of the lever 12 is hinged to a drive assembly. A fulcrum rod 13 is hinged to the center of the bottom of the lever 12. The bottom of the fulcrum rod 13 is bolted to the bottom wall of the functional cavity 9, forming a lever structure with the lever 12.

[0057] refer to Figure 5 A second piston 18 is slidably fitted at the bottom of the sliding cavity 16, forming a sealed cavity between the second piston 18 and the first piston 15. A cutting blade 8 is bolted to the side of the second piston 18 away from the first piston 15. The other side of the cutting blade 8 can pass through one side of the sliding cavity 16 and extend outside the sliding cavity 16 (i.e., the opposite side of the scraping body 4). The cutting blade 8 is wing-shaped on the side near the scraping body 4. The wing-shaped cutting blade 8 fits more closely to the root of the wart, achieving more thorough scraping. A limiting block 19 is fixedly connected to the bottom of the sliding cavity 16. The limiting block 19 is located on the side of the second piston 18 away from the cutting blade 8. The limiting block 19 limits the maximum stroke of the second piston 18 toward the side of the first piston 15, thereby preventing the possibility of the second piston 18 moving into the vertical cavity of the sliding cavity 16.

[0058] Furthermore, a first elastic element is welded onto the push rod 14, and a second elastic element is welded onto one side of the cutting blade 8 located inside the sliding cavity 16. Both the first and second elastic elements are welded to the inner wall of the sliding cavity 16 (both the first and second elastic elements are springs). The design of the first and second elastic elements enables the push rod 14 and the cutting blade 8 to be smoothly reset, increasing the stability during movement.

[0059] In order to achieve accurate positioning and cutting of the cutting parts, reference is made. Figure 4The drive assembly includes a controller 26 (with a button integrated on the controller 26 and the button mounted on the grip rod 1) which is fixedly connected to the top wall inside the sliding cavity 16. The controller 26 is signal-connected to a display screen fixedly connected to the grip rod 1.

[0060] The controller 26 is connected to a motor 10 bolted to the functional cavity 9. The output shaft of the motor 10 is coaxially keyed to a fan-shaped lever 11. The bottom of the fan-shaped lever 11 is bolted to a swing rod 3. The bottom of the swing rod 3 is detachably connected to the top of the scraping body 4 (the scraping body 4 is available in various sizes based on the size of the wart, such as 2mm or 4mm, and the thickness of the scraping body 4 is also selected based on different sizes). If a wart of a special size is encountered (i.e., the wart cannot be placed between the scraping body 4 and the positioning rod 6), a telescopic component perpendicular to the swing rod 3 (preferably a telescopic rod with a self-locking function) is added to the swing rod 3. The bottom of the telescopic component is detachably connected to the top of the scraping body 4. The position between the scraping body 4 and the positioning rod 6 is adjusted by moving the telescopic component laterally and fixing it to achieve full scraping. The side of the fan-shaped lever 11 near the lever 12 is hinged to the lever 12. The bottom of the positioning rod 6 is provided with a swing groove 5 corresponding to the swing rod 3.

[0061] The specific implementation process is as follows: When performing curettage on common dermatological warts (such as common warts, condyloma acuminata, etc.), traditional curette operation relies on the surgeon's feel and requires repeated, multi-directional curettage, which can easily lead to inaccurate grasp of the lesion boundary, excessive curettage or excessive area, and the treatment of the root of the wart often results in residual or excessive damage. In order to solve this problem, in this procedure, the surgeon first holds the holding rod 1 and brings the lower end of the curette rod 2 close to the wart, while keeping the curette body roughly perpendicular to the skin surface. At this time, the bottom end of the positioning rod 6 is aligned with and lightly placed on the pre-marked edge of the lesion as a physical reference for curettage, and then the curette curettage operation begins.

[0062] First, the controller 26 starts the motor 10 by using the button. When the motor 10 starts, the motor 10 drives the fan-shaped blade 11 to rotate. The bottom of the fan-shaped blade 11 forms an arc motion that first cuts downward and then lifts upward, simulating the action of "pressing down the scraper and prying up the wart" in the standard scraping technique. Thus, the swing rod 3, which is fixedly connected to the fan-shaped blade 11, performs this motion synchronously. The scraping body 4 first probes down to below the root of the wart, and then moves upward along the arc, thereby peeling the wart tissue relatively completely from the base.

[0063] Simultaneously, to better remove the wart, when the fan-shaped paddle 11 moves, it drives the lever 12 upward. Because the fulcrum lever 13 and the lever 12 form a lever structure, the end of the lever 12 near the push rod 14 moves downward. The first piston 15 moves downward simultaneously within the sliding cavity 16. Since the second piston 18 forms a closed cavity with the first piston 15, the second piston 18 moves synchronously away from the first piston 15. When the second piston 18 moves, it drives the cutting blade 8 to extend linearly. When the scraping body 4 performs the scraping motion, the extended cutting blade 8 precisely cuts and separates the wart from the opposite side (i.e., the side of the positioning rod 6). This achieves simultaneous treatment of both sides of the wart. On the one hand, it reduces the possibility that the scraping body 4 cannot fully scrape to the opposite side of the wart, which would require repeated changes in the scraping position and increase damage to normal skin. On the other hand, the cutting blade 8 and the positioning rod 6 together constitute a physical scraping boundary, which can effectively limit the range of movement of the scraping body 4 and tissue, preventing it from crossing the boundary and damaging the surrounding normal skin.

[0064] During this process, for irregular or large warts, the operator slightly rotates the curette body to change the angle of action of the curette body 4 and the cutting blade 8 for supplementary curettage. At the same time, if a wart with a deep root is encountered, the operator tilts the holding rod 1 to allow the tip of the curette body 4 to penetrate deeper, and then restarts the motor 10 for local curettage. At this time, due to the change in angle, the positioning rod 6 and the cutting blade 8 can avoid the skin, thus avoiding secondary damage to the treated wound edges.

[0065] After scraping is completed, the motor 10 is turned off by the controller 26. Under the action of the first elastic element and the second elastic element, the first piston 15 and the second piston 18 return to their original positions. The instruments are then disinfected and cleaned for subsequent use. Then, the patient's wound is compressed with hemostatic agents such as ferric chloride tincture to stop the bleeding, and covered with sterile dressing.

[0066] Example 2:

[0067] As attached Figure 1 As shown, the difference from Example 1 is that, in order to reduce the number of scrapings when repeatedly scraping the warts and to protect normal skin, a structure was designed to further enhance the scraping intensity of the scraping body 4, specifically as follows: (Refer to...) Figure 6 A negative pressure pump 27 is bolted inside the gripping rod 1. The negative pressure pump 27 is connected to a negative pressure pipe 28. The other end of the negative pressure pipe 28 is detachably connected to a delivery pipe 29 fixedly connected inside the scraping rod 2. (Before assembling the gripping rod 1 and the scraping rod 2, the negative pressure pipe 28 and the delivery pipe 29 are first fixed by means of snap-fit ​​or direct insertion; and the delivery pipe 29 is staggered from the functional cavity 9, and the delivery pipe 29 extends along the side wall of the scraping rod 2 to the bottom end of the scraping rod 2.)

[0068] refer to Figure 4 and Figure 5A through hole 20 is opened on one side of the upper part of the negative pressure chamber 22. The through hole 20 is connected to the bottom end of the conveying pipe 29. A negative pressure chamber 22 is opened on the side of the positioning rod 6 near the scraper 4. Several negative pressure holes 7 are opened on the side of the negative pressure chamber 22 near the scraper 4.

[0069] Furthermore, a sliding rod 21 is bolted to the side of the push rod 14 near the negative pressure chamber 22. The other end of the sliding rod 21 extends through the side wall of the sliding chamber 16 into the negative pressure chamber 22 and is bolted to a baffle 23. The baffle 23 fits against the side wall of the negative pressure chamber 22 near the through hole 20 and slides with the negative pressure chamber 22 through a sliding groove slider. The baffle 23 is provided with several blocking holes 24 with the same diameter as the negative pressure hole 7 (initially, the negative pressure hole 7 and the blocking holes 24 are directly opposite each other, and the ventilation area of ​​the negative pressure hole 7 is the largest at this time). The side wall of the sliding chamber 16 has a sliding groove corresponding to the position of the sliding rod 21. The top wall and the bottom wall of the sliding groove are bolted to telescopic plates 25. The telescopic plates 25 are bolted to the sliding rod 21 on the side closest to each other.

[0070] The specific implementation process is as follows: In dermatological curettage, some warts (such as certain hyperkeratotic types or warts with their roots tightly adhered to the subcutaneous tissue) present problems such as high scraping resistance and easy tissue residue, which may require repeated operations, increasing the risk of friction and damage to the surrounding normal skin. This embodiment improves the scraping conditions and increases the efficiency of a single scraping by using physical methods based on embodiment 1. Specifically, when the scraping operation is performed, the negative pressure pump 27 is started simultaneously by the controller 26, thereby generating negative pressure through the negative pressure tube 28, the delivery tube 29 and the through hole 2. The negative pressure is transmitted to the negative pressure chamber 22 inside the positioning rod 6 and finally output outward from the negative pressure hole 7. Because the negative pressure hole 7 is located on the positioning rod 6 and on one side of the scraping body 4, and directly facing the wart, the negative pressure can produce an adsorption effect on the wart tissue when the scraping body 4 performs the scraping action. This effect helps to: make the root tissue of the wart easier to expose and locate; at the same time, it generates a slight traction force on the wart towards the positioning rod 6, thereby increasing the tension of the local skin in the scraping direction, making the scraping action easier to separate and remove tissue, and improving the thoroughness of scraping.

[0071] Meanwhile, as the push rod 14 moves downward, the slide rod 21 moves downward, and the slide rod 21 drives the baffle 23 to move vertically downward in the negative pressure chamber 22. The blocking hole 24 on the baffle 23 and the negative pressure hole 7 on the side wall of the negative pressure chamber 22 gradually misalign, resulting in a reduction in the effective diameter of the negative pressure hole 7. According to the principle of fluid mechanics, under the premise that the suction power of the negative pressure pump 27 remains unchanged, the reduction in the diameter of the negative pressure hole 7 will enhance the local negative pressure suction force generated at that point, thus realizing the dynamic and gradual enhancement of the negative pressure adsorption force.

[0072] In the early stages of scraping, moderate negative pressure is used to assist in positioning and initial dissection; in the middle and later stages of scraping, as the baffle 23 moves down, the negative pressure suction gradually increases to deal with residual roots that may require greater tissue tension to be completely removed. This gradient negative pressure control mechanism helps to avoid applying too strong negative pressure in the initial stage of the operation, which could cause damage to normal skin due to excessive traction or adsorption.

[0073] Example 3:

[0074] As attached Figure 7 As shown, the difference from Example 2 is that a dermatological clinical method for wart removal includes the following steps:

[0075] Step 1, Preoperative preparation: Perform routine disinfection and anesthesia on the affected area. Select and install the appropriate size scraper 4 according to the size of the wart. Connect the gripping rod 1 of the scraper body to the scraping rod 2 and ensure that the negative pressure tube 28 is connected.

[0076] Step 2, positioning the scraper body: Hold the gripping rod 1, bring the lower end of the scraping rod 2 close to the wart, and keep the scraper body perpendicular to the skin surface; align the bottom end of the positioning rod 6 with and attach it to the pre-marked edge of the lesion as a physical reference for scraping;

[0077] Step 3, scraping operation: The controller 26 simultaneously starts the motor 10 and the negative pressure pump 27; the motor 10 drives the scraper 4 to perform a limited arc-shaped scraping action from bottom to top, while the lever structure pushes the cutting blade 8 to extend linearly, and performs coordinated cutting from the opposite side of the wart; during this process, the downward movement of the push rod 14 synchronously drives the baffle 23 to gradually cover the negative pressure hole 7, so that the negative pressure adsorption force gradually increases with the scraping process;

[0078] Step 4, Supplementary scraping operation: For irregular warts, after a single stroke, adjust the angle of the scraper body and repeat the operation as in Step 3; for warts with deep roots, tilt the scraper body to make the scraping body 4 penetrate deeper, while maintaining negative pressure suction, and perform localized key scraping.

[0079] Step 5, Postoperative care and repositioning: After curettage, the motor 10 and negative pressure pump 27 are turned off via controller 26; the patient's wound is treated with hemostatic agent to stop bleeding and covered with sterile dressing;

[0080] The gripping rod 1 integrates a mechanical sensing system, which collects real-time data on contact force and depth of penetration during the scraping operation. This data is processed by the controller 26 and dynamically displayed on the screen at the handle of the gripping rod 1, providing physicians with real-time visual feedback on the force and depth of penetration. The mechanical sensing system includes a pressure sensor and a displacement sensor. The pressure sensor, located at the connection between the scraping body 4 and the swing rod 3, collects data on the contact force applied by the scraping body 4 to the wart tissue during the scraping operation. The displacement sensor, located on the inner wall of the sliding cavity 16, collects the linear extension displacement of the cutting blade 8, which corresponds to the depth of penetration.

[0081] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A dermatological clinical wart scraping device, comprising a scraper body, the scraper body being composed of a holding rod (1) and a scraping rod (2), characterized in that, The scraping rod (2) is symmetrically provided with a scraping body (4) and a positioning cutting component at the bottom. The scraping body (4) is annular. The scraping rod (2) is provided with a functional cavity (9) in the lower part. The functional cavity (9) is provided with a driving component for driving the scraping body (4) to swing to scrape off the wart. The positioning and cutting component includes an "L"-shaped positioning rod (6), a sliding cavity (16) is provided inside the positioning rod (6), a first piston (15) is slidably fitted inside the sliding cavity (16), a push rod (14) is fixedly connected to the top of the first piston (15), the top of the push rod (14) extends through the bottom wall of the functional cavity (9) to the functional cavity (9) and is vertically hinged to a lever (12), the other end of the lever (12) is hinged to the drive assembly, a fulcrum rod (13) is hinged to the bottom of the lever (12), the bottom end of the fulcrum rod (13) is fixedly connected to the bottom wall inside the functional cavity (9), and the fulcrum rod (13) and the lever (12) form a lever structure; The bottom of the sliding cavity (16) is slidably fitted with a second piston (18), and a sealed cavity is formed between the second piston (18) and the first piston (15). A cutting blade (8) is fixedly connected to the side of the second piston (18) away from the first piston (15), and the other side of the cutting blade (8) can pass through one side of the sliding cavity (16) and extend to the outside of the sliding cavity (16).

2. The dermatological clinical wart scraping device according to claim 1, characterized in that, The drive assembly includes a controller (26) fixedly connected to the top wall inside the sliding cavity (16), and the controller (26) is signal-connected to a display screen fixedly connected to the grip rod (1); The controller (26) is connected to a motor (10) fixedly connected to the functional cavity (9). The output shaft of the motor (10) is coaxially fixedly connected to a fan-shaped paddle (11). The bottom of the fan-shaped paddle (11) is fixedly connected to a swing rod (3). The bottom end of the swing rod (3) is detachably connected to the top of the scraper (4). The fan-shaped paddle (11) is hinged to the lever (12) on the side near the lever (12). The bottom of the positioning rod (6) is provided with a swing groove (5) corresponding to the swing rod (3).

3. The dermatological clinical wart scraping device according to claim 2, characterized in that, The grip (1) is equipped with a negative pressure pump (27), which is connected to a negative pressure pipe (28). The other end of the negative pressure pipe (28) is detachably connected to a transmission pipe (29) fixedly connected to the scraper (2). A through hole (20) is provided on one side of the upper part of the negative pressure chamber (22), which is connected to the conveying pipe (29). A negative pressure chamber (22) is provided on the side of the positioning rod (6) near the scraper (4), and a number of negative pressure holes (7) are provided on the side of the negative pressure chamber (22) near the scraper (4).

4. The dermatological clinical wart scraping device according to claim 3, characterized in that, A slide rod (21) is fixedly connected to the side of the push rod (14) near the negative pressure chamber (22). The other end of the slide rod (21) extends through the side wall of the sliding chamber (16) into the negative pressure chamber (22) and is fixedly connected to a baffle (23). The baffle (23) fits against the side wall of the negative pressure chamber (22) near the through hole (20) and slides in cooperation with the negative pressure chamber (22). The baffle (23) is provided with several blocking holes (24) with the same diameter as the negative pressure hole (7). The side wall of the sliding chamber (16) is provided with a sliding groove corresponding to the position of the slide rod (21).

5. The dermatological clinical wart scraping device according to claim 4, characterized in that, The top and bottom walls of the sliding groove are fixedly connected with telescopic plates (25), and the telescopic plates (25) are fixedly connected to the sliding rod (21) on the side closest to each other.

6. The dermatological clinical wart scraping device according to claim 5, characterized in that, A first elastic element is fixedly connected to the push rod (14), and a second elastic element is fixedly connected to one side of the cutting blade (8) inside the sliding cavity (16). Both the first elastic element and the second elastic element are fixedly connected to the inner wall of the sliding cavity (16).

7. The dermatological clinical wart scraping device according to claim 6, characterized in that, A limiting block (19) is fixedly connected to the bottom of the sliding cavity (16), and the limiting block (19) is located on the side of the second piston (18) away from the cutting blade (8).

8. The dermatological clinical wart scraping device according to claim 7, characterized in that, The cutting blade (8) is wing-shaped on the side near the scraper (4).

9. A method for curettage of warts in dermatological clinics, based on the operation of the dermatological wart curettage device according to claim 8, characterized in that, Includes the following steps: Step 1, Preoperative preparation: Perform routine disinfection and anesthesia on the lesion area, select and install the appropriate size scraper (4) according to the size of the wart, and connect the holding rod (1) and the scraper (2); Step 2, positioning the scraper body: Hold the gripping rod (1) and bring the lower end of the scraping rod (2) close to the wart, while keeping the scraper body perpendicular to the skin surface; align the bottom end of the positioning rod (6) with and attach it to the pre-marked edge of the lesion as a physical reference for scraping; Step 3, scraping operation: The motor (10) and the negative pressure pump (27) are started simultaneously by the controller (26); the motor (10) drives the scraper (4) to perform an arc-shaped scraping action from bottom to top, and at the same time, the cutting blade (8) is pushed to extend linearly through the lever structure to perform coordinated cutting from the opposite side of the wart; during this process, the downward movement of the push rod (14) synchronously drives the baffle (23) to gradually cover the negative pressure hole (7), so that the negative pressure adsorption force gradually increases with the scraping process; Step 4, supplementary scraping operation: For irregular warts, after a single stroke, adjust the angle of the scraper body and repeat the operation as in step 3; for warts with deep roots, tilt the scraper body to make the scraping body (4) penetrate deeper, while maintaining negative pressure adsorption, and perform local key scraping. Step 5, Postoperative care and repositioning: After curettage, the motor (10) and negative pressure pump (27) are turned off by the controller (26); the patient's wound is treated with hemostatic agent to stop bleeding and covered with sterile dressing; Among them, a mechanical sensing system is integrated on the grip (1). The mechanical sensing system is used to collect contact force and invasive depth data during the scraping operation in real time. The contact force and invasive depth data are processed by the controller (26) and dynamically displayed on the display screen of the grip (1) handle, providing doctors with real-time visual feedback on the operating force and depth.

10. The method for dermatological wart removal according to claim 9, characterized in that, In step five, the mechanical sensing system includes a pressure sensor and a displacement sensor; The pressure sensor is located at the connection between the scraping body (4) and the swing rod (3) and is used to collect the contact force data of the scraping body (4) applied to the wart tissue during the scraping operation. A displacement sensor is installed on the inner wall of the sliding cavity (16) to collect the linear extension displacement of the cutting blade (8), and the extension displacement corresponds to the penetration depth data.

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