Novel low-temperature electrotome main machine
By introducing a bracket and caster wheel structure into the electrosurgical unit, combined with the design of air guide columns and fans, the problems of poor heat dissipation and excessively long connecting cables of the electrosurgical unit have been solved, achieving more efficient heat dissipation and a more convenient user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING KAISI MASCH TECH CO LTD
- Filing Date
- 2024-12-27
- Publication Date
- 2026-04-28
AI Technical Summary
The existing electrosurgical unit has poor heat dissipation and long connecting cables, making it inconvenient to use.
A novel cryogenic electrosurgical unit was designed, featuring a bracket and casters for easy movement. The design incorporates a guide column and fan to improve heat dissipation efficiency, and the connection cable length is shortened for ease of use.
The heat dissipation of the electrosurgical unit has been improved, the length of the connecting cable has been shortened, and the ease of use has been enhanced.
Smart Images

Figure CN224166385U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrosurgical unit technology, specifically a novel low-temperature electrosurgical unit. Background Technology
[0002] An electrosurgical unit is a surgical instrument consisting of a power supply, a handle, and a blade. It uses high-frequency radio waves to generate high temperatures, heating the surgical blade to a high temperature for cutting. Electrosurgical units are widely used in surgery, plastic surgery, and cosmetic procedures, offering advantages such as excellent cutting results and minimal trauma.
[0003] The existing Chinese utility model patent with publication number CN208710049U discloses an electrosurgical pen system. This electrosurgical pen system comprises an electrosurgical unit and an electrosurgical device. The electrosurgical unit is equipped with a high-frequency output interface, a high-frequency circuit interface, and a ground interface. The electrosurgical device includes an electrosurgical body and an electrosurgical head. A cold light source is also provided on the electrosurgical unit, connected to a cold light output interface. A light source controller is connected to the cold light source to control the intensity of the cold light output. A light-emitting end is provided at one end of the electrosurgical head on the electrosurgical body, and an optical fiber is connected to the light-emitting end. The optical fiber is connected to the cold light output interface. This utility model's electrosurgical unit has a built-in cold light source, providing sufficient illumination lumens. It can provide surgical field illumination under shadowless lamp conditions and can also serve as an auxiliary tool for strong light illumination during surgery. Its output end on the panel has a cold light output interface, which can effectively output illumination light to the electrosurgical head through the optical fiber.
[0004] Existing electrosurgical units typically rely on fans for cooling. However, the internal airflow structure can be obstructed by internal electronic components, affecting heat dissipation. Furthermore, existing electrosurgical units require a support structure to restrict their position during use. The electrosurgical unit connects to the handheld blade via a cable, usually via a medical trolley. The support structure is located at the four corners, which restricts the movement of the electrosurgical unit and the operating table. This results in a considerable distance between the electrosurgical unit and the operating table, requiring the handheld blade to be connected to the unit via a long cable, making it very inconvenient to use. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] In view of the shortcomings of the existing technology, this utility model provides a new type of low-temperature electrosurgical unit, which has the advantages of improved heat dissipation and shorter connection cable length, thus solving the above-mentioned technical problems.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: A novel cryogenic electrosurgical unit, comprising: a bracket, a support frame fixedly mounted on the top of the bracket, casters movably mounted below the support frame, a housing fixedly mounted on the top of the support frame, a control board fitted into the left side of the housing, a top cover fixedly mounted on the top of the housing, a fan fixedly mounted on the top of the top cover, a limit frame fixedly mounted on the top of the fan, a dustproof mesh fixedly mounted inside the limit frame, connecting bolts inserted through the top of the limit frame, air guide columns fixedly mounted at the four corners of the housing, a support plate fixedly mounted inside the housing, a circuit board fixedly mounted on the top of the support plate, and a back plate fitted into the right side of the housing; the bracket provides support for the support frame.
[0009] As a preferred technical solution of this utility model, the front and rear ends of the bracket are provided with four branch structures with a 90-degree reference, and the casters are installed below each branch structure of the bracket; the casters facilitate the movement of the bracket.
[0010] As a preferred embodiment of this utility model, the outer shell is fixedly connected to the support frame and the bracket, and the four corners of the bottom surface of the outer shell are provided with columnar opening structures that match the fan; the outer shell can protect the internal circuit board.
[0011] As a preferred embodiment of this utility model, the top cover has a cylindrical opening structure matching the fan at its center, and the four corners of the limiting frame have opening structures that fit into the connecting bolts. The connecting bolts are symmetrically installed at the four corners of the fan. The limiting frame can limit the position of the dustproof net.
[0012] As a preferred embodiment of this utility model, the connecting bolts pass through the limiting frame, the fan, and the top cover to form a fixed connection. The fan and the limiting frame are also installed at the four corners of the bottom surface of the outer shell by the connecting bolts. The fan is capable of generating airflow.
[0013] As a preferred technical solution of this utility model, the air outlet direction of the fan below the outer shell and the fan above the top cover is vertically upward, the air guide column is symmetrically installed at the four corners of the outer shell with the center of the outer shell as the reference, and the top of the air guide column is an eighth spherical structure; the air guide column can guide the airflow to move towards the center of the outer shell.
[0014] As a preferred technical solution of this utility model, the arc shape at the bottom of the inner wall of the air guide column matches the opening structure at the four corners of the outer shell, a slope structure is provided below the support plate, and the circuit board is fixedly connected to the outer shell through the support plate; the support plate facilitates the fixed connection between the circuit board and the outer shell.
[0015] Compared with the prior art, this utility model provides a novel cryogenic electrosurgical unit, which has the following features:
[0016] Beneficial effects:
[0017] 1. This utility model features a bracket with a steel frame structure and protrusions at a 90-degree angle on both the front and rear sides. The bracket increases the support base to prevent the device from tipping over. The casters at the bottom of the bracket facilitate movement. The outer shell is fixedly mounted above the center of the bracket by a support frame, which allows the outer shell to be raised to a suitable height. During use, one side of the bracket can be moved under the operating table via the casters, allowing the outer shell to be closer to the operating table. This shortens the length of the connecting cable required for the handheld blade, making it easier to use the handheld blade.
[0018] 2. This utility model, through the setting of air guide columns, has cylindrical opening structures matching the fan at the four corners of the bottom surface of the outer casing, and a cylindrical opening structure matching the fan at the center of the top cover. Connecting bolts pass through the limiting frame, forming a fixed connection between the fan and the top cover. The fan and the limiting frame are also installed at the four corners of the bottom surface of the outer casing through connecting bolts. The air outlet direction of the fan at the bottom of the outer casing and the fan at the top cover is vertically upward. After the fan at the bottom of the outer casing is started, it can blow external air into the interior of the outer casing from below. Since the air guide columns are located at the four corners of the outer casing and directly above the fan, the top of the air guide column is a one-eighth spherical structure. The arc of the bottom end of the inner wall of the air guide column matches the opening structure at the four corners of the outer casing. The airflow will move towards the center of the outer casing under the guidance of the air guide columns, and finally be discharged through the fan at the top cover, so that the airflow inside the outer casing enters from the four corners of the bottom and exits from the center of the top, thereby removing the heat generated by the circuit board during operation and improving the heat dissipation efficiency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the outer shell mounting structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the fan mounting structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the backplate mounting structure of this utility model;
[0023] The components are: 1. Bracket; 11. Support frame; 12. Casters; 13. Outer shell; 14. Control panel; 15. Top cover; 16. Fan; 17. Limit frame; 18. Dustproof net; 19. Connecting bolts; 110. Air guide column; 111. Support plate; 112. Circuit board; 113. Back plate. Detailed Implementation
[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Please see Figure 1 - Figure 4 In this embodiment, a novel cryogenic electrosurgical unit includes: a bracket 1, a support frame 11 fixedly mounted on the top of the bracket 1, casters 12 movably mounted on the bottom of the support frame 11, a housing 13 fixedly mounted on the top of the support frame 11, a control board 14 fitted into the left side of the housing 13, a top cover 15 fixedly mounted on the top of the housing 13, a fan 16 fixedly mounted on the top of the top cover 15, a limit frame 17 fixedly mounted on the top of the fan 16, a dustproof net 18 fixedly mounted inside the limit frame 17, a connecting bolt 19 inserted into the top of the limit frame 17, air guide columns 110 fixedly mounted at the four corners of the housing 13, a support plate 111 fixedly mounted inside the housing 13, a circuit board 112 fixedly mounted on the top of the support plate 111, and a back plate 113 fitted into the right side of the housing 13.
[0028] The bracket 1 has four branch structures at its front and rear ends, with a 90-degree angle as the reference. Universal wheels 12 are installed below each branch structure of the bracket 1. The outer shell 13 is fixedly connected to the bracket 1 via a support frame 11. The four corners of the bottom surface of the outer shell 13 have cylindrical openings matching the fan 16. The center of the top cover 15 has a cylindrical opening matching the fan 16. The four corners of the limiting frame 17 have openings for engaging with connecting bolts 19. The connecting bolts 19 are symmetrically installed at the four corners of the fan 16, and they penetrate the limiting frame 17, the fan 16, and the top cover 15. A fixed connection is formed between them. The fan 16 and the limiting frame 17 are also installed at the four corners of the bottom surface of the housing 13 by connecting bolts 19. The air outlet direction of the fan 16 below the housing 13 and the fan 16 above the top cover 15 is vertically upward. The air guide column 110 is symmetrically installed at the four corners of the housing 13 with the center of the housing 13 as the reference. The top of the air guide column 110 is a one-eighth spherical structure. The arc of the bottom of the inner wall of the air guide column 110 matches the opening structure at the four corners of the housing 13. A slope structure is provided below the support plate 111. The circuit board 112 is fixedly connected to the housing 13 through the support plate 111.
[0029] Specifically, the bracket 1 has a steel frame structure, and the front and rear sides of the bracket 1 are provided with protrusions at a 90-degree angle. The bracket 1 increases the support base to prevent the device from tipping over. The support frame 11 can easily raise the outer shell 13 so that the outer shell 13 can be positioned at a suitable height. The outer shell 13 can protect the internal circuit board 112. The opening structure at the bottom of the outer shell 13 can facilitate airflow into the outer shell 13 under the guidance of the fan 16. The dustproof net 18 is restricted to the air intake end of the fan 16 by the limiting frame 17 to prevent the airflow from carrying dust into the interior of the outer shell 13. The fan 1 at the bottom of the outer shell 13 6 After startup, it can blow external air into the interior of the housing 13 from below. Since the air guide column 110 is located at the four corners of the housing 13 and directly above the fan 16, the top of the air guide column 110 is an eighth spherical structure. The arc of the bottom of the inner wall of the air guide column 110 matches the opening structure at the four corners of the housing 13. The airflow will move towards the center of the housing 13 under the guidance of the air guide column 110, and finally be discharged through the fan 16 above the top cover 15, so that the interior of the housing 13 forms an airflow that enters from the four bottom corners and is discharged from the top center, so as to remove the heat generated by the circuit board 112 when it is working.
[0030] In use, the bracket 1 has a steel frame structure, and the front and rear sides of the bracket 1 are provided with protrusions at a 90-degree angle. The bracket 1 increases the support base to prevent the device from tipping over. The universal wheels 12 at the bottom of the bracket 1 facilitate the movement of the bracket 1. The outer shell 13 is fixedly installed above the center of the bracket 1 by the support frame 11. The support frame 11 can easily raise the outer shell 13 so that the outer shell 13 can be positioned at a suitable height. In use, one side of the bracket 1 can be moved to below the operating table by the universal wheels 12, so that the outer shell 13 can be closer to the operating table, thereby shortening the length of the connecting cable required for the handheld blade, so as to facilitate the use of the handheld blade. The four corners of the bottom surface of the outer shell 13 are provided with cylindrical opening structures that match the fan 16. The center of the top cover 15 is provided with a cylindrical opening structure that matches the fan 16. The connecting bolt 19 passes through the limiting frame 17, the fan 16 and the top cover 1. The components 5 form a fixed connection. The fan 16 and the limiting frame 17 are also installed at the four corners of the bottom surface of the housing 13 by connecting bolts 19. The air outlet direction of the fan 16 at the bottom of the housing 13 and the fan 16 at the top of the top cover 15 is vertically upward. After the fan 16 at the bottom of the housing 13 is started, it can blow external air into the interior of the housing 13 from below. Since the air guide column 110 is located at the four corners of the housing 13 and directly above the fan 16, the top of the air guide column 110 is an eighth spherical structure. The arc of the bottom of the inner wall of the air guide column 110 matches the opening structure at the four corners of the housing 13. The airflow will move towards the center of the housing 13 under the guidance of the air guide column 110, and finally be discharged through the fan 16 above the top cover 15. This creates an airflow inside the housing 13 that enters from the four bottom corners and exits from the top center, which carries away the heat generated by the circuit board 112 during operation and improves the heat dissipation efficiency.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A novel cryogenic electrosurgical unit, characterized in that, include: A bracket (1) is provided, with a support frame (11) fixedly mounted on top of the bracket (1). A caster wheel (12) is movably mounted below the support frame (11). A housing (13) is fixedly mounted on top of the support frame (11). A control panel (14) is fitted onto the left side of the housing (13). A top cover (15) is fixedly mounted on top of the housing (13). A fan (16) is fixedly mounted on top of the top cover (15). A control panel (14) is fixedly mounted on the left side of the fan (13). A top cover (15) is fixedly mounted on top of the fan (16). A limiting frame (17) is installed, and a dustproof net (18) is fixedly installed inside the limiting frame (17). A connecting bolt (19) is inserted and installed above the limiting frame (17). Air guide columns (110) are fixedly installed at the four corners of the outer shell (13). A support plate (111) is fixedly installed inside the outer shell (13). A circuit board (112) is fixedly installed above the support plate (111). A back plate (113) is fitted and installed on the right side of the outer shell (13).
2. The novel cryogenic electrosurgical unit according to claim 1, characterized in that: The bracket (1) has four branch structures at its front and rear ends with a 90-degree reference, and the casters (12) are installed below each branch structure of the bracket (1).
3. The novel cryogenic electrosurgical unit according to claim 1, characterized in that: The outer shell (13) is fixedly connected to the bracket (1) through the support frame (11), and the four corners of the bottom surface of the outer shell (13) are provided with columnar opening structures that match the fan (16).
4. The novel cryogenic electrosurgical unit according to claim 1, characterized in that: The top cover (15) has a cylindrical opening structure that matches the fan (16) at its center, and the four corners of the limiting frame (17) have opening structures that fit into the connecting bolts (19). The connecting bolts (19) are symmetrically installed at the four corners of the fan (16).
5. A novel cryogenic electrosurgical unit according to claim 1, characterized in that: The connecting bolt (19) passes through the limiting frame (17), the fan (16) and the top cover (15) to form a fixed connection. The fan (16) and the limiting frame (17) are also installed at the four corners of the bottom surface of the outer shell (13) by the connecting bolt (19).
6. A novel cryogenic electrosurgical unit according to claim 1, characterized in that: The air outlet direction of the fan (16) below the outer shell (13) and the fan (16) above the top cover (15) is vertically upward. The air guide column (110) is symmetrically installed at the four corners of the outer shell (13) with the center of the outer shell (13) as the reference. The top of the air guide column (110) is an eighth spherical structure.
7. A novel cryogenic electrosurgical unit according to claim 1, characterized in that: The arc shape at the bottom of the inner wall of the air guide column (110) matches the opening structure at the four corners of the outer shell (13). A slope structure is provided below the support plate (111). The circuit board (112) is fixedly connected to the outer shell (13) through the support plate (111).
Citation Information
Patent Citations
Electrosurgical pencil system and electrotome host computer and electrosurgical pencil
CN208710049U