Dermatological superficial skin lesion cleaning electrotome

By designing a support mechanism and locking structure, the dermatological superficial lesion cleaning electrosurgical unit solves the problem of operational instability when treating small lesions with high-frequency electrosurgical units, achieving higher precision and safety.

CN117204941BActive Publication Date: 2026-07-24FOURTH MILITARY MEDICAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FOURTH MILITARY MEDICAL UNIVERSITY
Filing Date
2023-10-24
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

When treating tiny lesions with a high-frequency electrosurgical unit, even slight hand tremors can cause the electrosurgical tip to become unstable, easily burning the patient's skin. This requires a high level of skill to operate.

Method used

An electrosurgical knife for cleaning superficial skin lesions in dermatology has been designed, which includes a support mechanism comprising a movable cylinder, an outer cylinder, an elastic sleeve, and a support frame. The support frame is equipped with an anti-slip rubber sheet and a magnifying glass, and is fixed to the electrosurgical knife body by locking bolts and movable clamps. The support frame can be adjusted in angle and position to support the skin to expose the lesion.

Benefits of technology

It reduces the difficulty of surgical procedures, improves the precision of treating small lesions, reduces the risk of skin burns, and is suitable for multiple models of high-frequency electrosurgical units.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of medical apparatus and instruments, and discloses a dermato logical superficial skin lesion cleaning electrotome, which comprises an electrotome body, a supporting mechanism is arranged on the electrotome body, the supporting mechanism comprises a movable cylinder, an outer cylinder, an elastic sleeve and three support frames which are in contact with the skin, the movable cylinder is arranged on the electrotome body, the outer cylinder is arranged on the outer side of the movable cylinder, the elastic sleeve is fixedly installed between the movable cylinder and the outer cylinder, the three support frames are annularly and equidistantly rotationally installed on the outer cylinder, a rotating block is rotationally installed at the end of the support frame away from the outer cylinder, and a magnifying glass is fixedly installed on the support frame. The purpose is to solve the problem that when the high-frequency electrotome is used, the doctor needs to hold the electrotome pen to clean the lesion of the patient, but when the micro-lesion is treated, slight shaking of the hand will affect the movement of the pen head of the electrotome pen, thereby causing the burning of the skin of the patient, and therefore the operation requirement of the doctor is relatively high.
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Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to an electrosurgical unit for cleaning superficial dermatological lesions. Background Technology

[0002] A high-frequency electrosurgical unit is an electrosurgical instrument that replaces a mechanical scalpel for tissue cutting. It heats the tissue by generating a high-frequency, high-voltage current at the tip of its effective electrode, achieving tissue separation and coagulation, thereby achieving the purposes of cutting and hemostasis.

[0003] When using a high-frequency electrosurgical unit, the doctor needs to hold the electrosurgical pen to clean the lesion. However, when treating tiny lesions, even slight hand tremors can affect the movement of the pen tip, leading to burns to the patient's skin. Therefore, it requires a high level of skill from the doctor. To address this issue, we have proposed a new electrosurgical unit for cleaning superficial dermatological lesions. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that when using a high-frequency electrosurgical unit, doctors need to hold the electrosurgical pen to clean the lesion. However, when treating small lesions, even slight hand tremors can affect the movement of the electrosurgical pen tip, resulting in burns to the patient's skin. Therefore, this requires a high level of skill from the doctor.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] An electrosurgical device for cleaning superficial dermatological lesions includes an electrosurgical body with a support mechanism. The support mechanism includes a movable cylinder, an outer cylinder, an elastic sleeve, and three support frames whose ends contact the skin. The movable cylinder is mounted on the electrosurgical body, the outer cylinder is mounted outside the movable cylinder, the elastic sleeve is fixedly installed between the movable cylinder and the outer cylinder, and the three support frames are rotatably mounted on the outer cylinder in a ring at equal intervals.

[0007] Furthermore, a rotating block is rotatably mounted at the end of the support frame away from the outer cylinder, and an anti-slip rubber sheet is provided on the side of the rotating block that contacts the skin. This structural design ensures that the rotating block maintains sufficient contact area with the skin when the support frame changes angle, and the anti-slip rubber sheet increases the friction between the rotating block and the skin. When the rotating block moves, it can tighten the skin at the lesion site, facilitating cleaning.

[0008] Furthermore, a magnifying glass is fixedly mounted on the support frame. This structural design allows doctors to observe lesions more closely through the magnifying glass, facilitating the cleaning of even tiny lesions.

[0009] Further specifying, a hollow cylinder is fixedly inserted into the movable cylinder, the hollow cylinder having internal threads, and a locking bolt is threaded onto the hollow cylinder. With this structural design, when the locking bolt moves on the hollow cylinder, its end can extend into the movable cylinder and contact the electrosurgical unit body. At this time, the movable cylinder can be locked onto the electrosurgical unit body. Rotating the locking bolt allows adjustment of the movable cylinder's position on the electrosurgical unit body, thus facilitating the adjustment of the support structure's position.

[0010] Furthermore, an elastic rubber pad is rotatably mounted on the end of the locking bolt near the movable cylinder. This structural design, with the elastic rubber pad positioned between the locking bolt and the electrosurgical unit, prevents the end of the locking bolt from directly contacting the electrosurgical unit and causing scratches.

[0011] Furthermore, the lower end of the rotating block is provided with a mounting groove, within which an L-shaped mounting bracket and a rotating wheel are arranged. The rotating wheel is rotatably mounted on the L-shaped mounting bracket. This structural design reduces friction between the rotating wheel and the skin during the movement of the rotating block, allowing the three support frames to unfold smoothly and preventing discomfort to the patient caused by excessive skin stretching.

[0012] Further defining the design, the upper end of the L-shaped mounting bracket extends to the upper end of the rotating block, and a fixing block is fixedly installed at the lower part of the support bracket. The fixing block movably overlaps with the upper end of the L-shaped mounting bracket. When the support bracket and the rotating block rotate relative to each other, the fixing block gradually releases its contact with the L-shaped mounting bracket. With this structural design, when the three support brackets are unfolded, as the angle between the support bracket and the rotating block decreases, the fixing block gradually releases its contact with the L-shaped mounting bracket. The L-shaped mounting bracket gradually moves upward along the mounting groove until the rotating wheel disengages from the skin. The lower end of the rotating block then replaces the rotating wheel, tightening the skin.

[0013] Further specifying, a fixed clamping plate is fixedly installed at the upper end of the movable cylinder, and a rotating clamping plate is rotatably installed on the fixed clamping plate. The rotating clamping plate and the fixed clamping plate are distributed in a cross pattern, and a spring clip is fixedly installed between the rotating clamping plate and the fixed clamping plate. This structural design, through the cooperation of the rotating clamping plate and the spring clip with the fixed clamping plate, can clamp the support mechanism onto the electrosurgical body, which is simple in structure and convenient to use.

[0014] The invention employing the above technical solution has the following advantages:

[0015] 1. The present invention provides a support mechanism that supports the electrosurgical body during surgery. Furthermore, through the cooperation of the movable cylinder, the elastic sleeve, and the outer cylinder, the cutting head of the electrosurgical body can be adjusted at any angle, reducing the difficulty of the operation and facilitating the treatment of small lesions.

[0016] 2. In this invention, while the support mechanism provides support to the electrosurgical unit, the support frame can tighten the skin at the lesion site with the help of the rotating block, so that the lesion site is fully exposed and easy to clean.

[0017] 3. The present invention can fix the movable cylinder at any position on the electric knife body by means of locking bolts in combination with hollow cylinder or movable clamping plate and spring clip in combination with fixed clamping plate, thereby facilitating the adjustment of the position of the support mechanism. Moreover, by means of different fixing methods, it can be applied to more models of high frequency electric knives, thus having a wider range of applications. Attached Figure Description

[0018] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0019] Figure 1 This is a schematic diagram of the structure of an electrosurgical unit for cleaning superficial epidermal lesions according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the movable cylinder and support frame in an embodiment of the electrosurgical knife for cleaning superficial epidermal lesions of the present invention;

[0021] Figure 3 This is a cross-sectional schematic diagram of the movable cylinder, outer cylinder, and elastic sleeve in an embodiment of the electrosurgical knife for cleaning superficial dermatological lesions of the present invention.

[0022] Figure 4 This is a cross-sectional view of the support frame and rotating block in an embodiment of the electrosurgical knife for cleaning superficial dermatological lesions according to the present invention.

[0023] Figure 5 This is a cross-sectional structural diagram of the support frame and rotating block in another state in an embodiment of the electrosurgical knife for cleaning superficial dermatological lesions of the present invention.

[0024] Figure 6 This is a schematic diagram of the movable cylinder and outer cylinder in Embodiment 2 of the electrosurgical knife for cleaning superficial dermatological lesions of the present invention.

[0025] The symbols for the main components are explained below:

[0026] 1. Electric knife body;

[0027] 2. Movable sleeve; 21. Outer sleeve; 22. Elastic sleeve;

[0028] 23. Support frame; 231. Rotating block; 232. Magnifying glass;

[0029] 24. Hollow cylinder; 241. Locking bolt; 242. Elastic rubber pad;

[0030] 3. Mounting slot; 31. L-shaped mounting bracket; 32. Rotating wheel; 33. Fixing block;

[0031] 4. Fix the clamping plate; 41. Rotate the clamping plate; 42. Spring clip. Detailed Implementation

[0032] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0033] Example 1: As Figures 1-5 As shown, the present invention discloses an electrosurgical device for cleaning superficial skin lesions in dermatology, comprising an electrosurgical body 1, a support mechanism provided on the electrosurgical body 1, the support mechanism comprising a movable cylinder 2, an outer cylinder 21, an elastic sleeve 22 and three support frames 23 with their ends in contact with the skin, the movable cylinder 2 being disposed on the electrosurgical body 1, the outer cylinder 21 being disposed outside the movable cylinder 2, the elastic sleeve 22 being fixedly installed between the movable cylinder 2 and the outer cylinder 21, and the three support frames 23 being rotatably mounted on the outer cylinder 21 in a ring at equal intervals.

[0034] A rotating block 231 is rotatably installed at the end of the support frame 23 away from the outer cylinder 21. The side of the rotating block 231 that contacts the skin is provided with an anti-slip rubber sheet. The anti-slip rubber sheet contacts the skin, increasing friction and enhancing comfort.

[0035] A magnifying glass 232 is fixedly installed on the support frame 23, allowing doctors to observe the condition of the lesion more clearly and thus clean up the tiny lesions more precisely.

[0036] A hollow cylinder 24 is fixedly inserted into the movable cylinder 2. The hollow cylinder 24 has an internal thread and a locking bolt 241 is threaded onto the hollow cylinder 24.

[0037] An elastic rubber pad 242 is rotatably installed at one end of the locking bolt 241 near the movable cylinder 2. The elastic rubber pad 242 is positioned between the locking bolt 241 and the electric knife body 1, which prevents the electric knife body 1 from directly contacting the locking bolt 241 and causing scratches.

[0038] The lower end of the rotating block 231 is provided with a mounting groove 3, and an L-shaped mounting bracket 31 and a rotating wheel 32 are provided in the mounting groove 3. The rotating wheel 32 is rotatably mounted on the L-shaped mounting bracket 31.

[0039] The upper end of the L-shaped mounting bracket 31 extends to the upper end of the rotating block 231. A fixing block 33 is fixedly installed on the lower part of the support frame 23. The fixing block 33 is movably connected to the upper end of the L-shaped mounting bracket 31. When the support frame 23 and the rotating block 231 rotate relative to each other, the fixing block 33 gradually releases its contact with the L-shaped mounting bracket 31.

[0040] Example 2: Figure 6 As shown, the difference from Embodiment 1 is that a fixed clamping plate 4 is fixedly installed at the upper end of the movable cylinder 2, and a rotating clamping plate 41 is rotatably installed on the fixed clamping plate 4. The rotating clamping plate 41 and the fixed clamping plate 4 are distributed in a cross shape, and a spring piece 42 is fixedly installed between the rotating clamping plate 41 and the fixed clamping plate 4. When the electric knife body 1 is located between the fixed clamping plate 4 and the rotating clamping plate 41, the end of the rotating clamping plate 41 will rotate towards the fixed clamping plate 4 under the action of the spring piece 42, and cooperate with the fixed clamping plate 4 to clamp the electric knife body 1, thereby installing the support mechanism on the electric knife body 1. The structure is simple and easy to use.

[0041] The method of using this invention is as follows:

[0042] When in use, hold the electric knife body 1 and insert the tip of the electric knife body 1 into the movable cylinder 2. Adjust the position of the movable cylinder 2, and then rotate the locking bolt 241. The locking bolt 241 will move inside the hollow cylinder 24, and the end will drive the elastic rubber pad 242 to come close to the electric knife body 1, and finally abut against the electric knife body 1 to clamp it. At this time, the support mechanism is fixed on the electric knife body 1.

[0043] Point the tip of the electrosurgical body 1 toward the lesion, and bring the rotating block 231 close to the skin. Hold the electrosurgical body 1 and slowly apply force to the skin. The rotating block 231 moves away from the lesion on the skin. The support frame 23 gradually extends on the outer cylinder 21, and the angle between the support frame 23 and the upper end of the rotating block 231 gradually decreases.

[0044] When the rotating block 231 starts to move, the rotating wheel 32 contacts the skin. Then, as the angle between the support frame 23 and the upper end of the rotating block 231 decreases, the rotating wheel 32 retracts into the mounting groove 3, and the rotating block 231 contacts the skin. When the rotating block 231 moves again, it will tighten the skin under the action of friction to expose the lesion so that it can be cleaned by electrocautery.

[0045] During the cleaning process, doctors can clearly observe the condition of the lesion through a magnifying glass 232, which can improve the precision of the doctor's surgery;

[0046] When the doctor performs the surgery, the elastic sleeve 22 can support the electrosurgical body 1 while ensuring that the tip of the electrosurgical device is adjustable, making it more convenient to use.

[0047] The above provides a detailed description of an electrosurgical device for cleaning superficial dermatological lesions provided by this invention. The specific embodiments are described only to aid in understanding the method and core concepts of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this invention.

Claims

1. An electrosurgical unit for cleaning superficial skin lesions, comprising an electrosurgical unit body (1), characterized in that: The electrosurgical body (1) is provided with a support mechanism, which includes a movable cylinder (2), an outer cylinder (21), an elastic sleeve (22), and three support frames (23) whose ends contact the skin. The movable cylinder (2) is disposed on the electrosurgical body (1), and the outer cylinder (21) is disposed outside the movable cylinder (2). The elastic sleeve (22) is fixedly installed between the movable cylinder (2) and the outer cylinder (21). The three support frames (23) are rotatably mounted on the outer cylinder (21) in a ring with equal spacing. A rotating block (231) is rotatably mounted on the end of the support frame (23) away from the outer cylinder (21). The rotating block (231) is in contact with the skin at one end. The side is provided with anti-slip rubber sheet; the lower end of the rotating block (231) is provided with a mounting groove (3), and an L-shaped mounting bracket (31) and a rotating wheel (32) are provided in the mounting groove (3). The rotating wheel (32) is rotatably mounted on the L-shaped mounting bracket (31); the upper end of the L-shaped mounting bracket (31) extends through to the upper end of the rotating block (231). The lower part of the support frame (23) is fixedly installed with a fixing block (33). The fixing block (33) is movably connected to the upper end of the L-shaped mounting bracket (31). When the support frame (23) and the rotating block (231) rotate relative to each other, the fixing block (33) gradually releases its contact relationship with the L-shaped mounting bracket (31).

2. The electrosurgical unit for cleaning superficial skin lesions according to claim 1, characterized in that: A magnifying glass (232) is fixedly installed on the support frame (23).

3. The electrosurgical unit for cleaning superficial skin lesions according to claim 1, characterized in that: A hollow cylinder (24) is fixedly inserted into the movable cylinder (2). The hollow cylinder (24) is provided with internal threads, and a locking bolt (241) is threadedly connected to the hollow cylinder (24).

4. The electrosurgical unit for cleaning superficial skin lesions according to claim 3, characterized in that: An elastic rubber pad (242) is rotatably mounted on one end of the locking bolt (2) near the movable cylinder (2).

5. The electrosurgical unit for cleaning superficial skin lesions according to claim 1, characterized in that: A fixed clamping plate (4) is fixedly installed at the upper end of the movable cylinder (2). A rotating clamping plate (41) is rotatably installed on the fixed clamping plate (4). The rotating clamping plate (41) and the fixed clamping plate (4) are distributed in a cross shape. A spring piece (42) is fixedly installed between the rotating clamping plate (41) and the fixed clamping plate (4).