Telescopic limiting scalpel pen and assembling and manufacturing method

Abstract

The invention discloses a telescopic limiting scalpel pen and an assembling and manufacturing method. The telescopic limiting scalpel pen structurally comprises a shell and a telescopic adjusting assembly. The telescopic adjusting assembly comprises a fixing seat, a telescopic adjusting block and a telescopic inner pipe, the fixing seat is fixedly arranged in the shell and provided with a sliding groove, a plurality of limiting protruding blocks are arranged on the inner wall of the sliding groove in the axial direction, the telescopic adjusting block is slidably connected with the sliding groove and provided with protruding blocks capable of being inserted between the adjacent limiting protruding blocks, and the telescopic inner pipe is connected with the telescopic adjusting block. One end of the telescopic inner pipe is connected with the telescopic adjusting block, and the other end extends out of the shell and is connected with the electrode. According to the telescopic limiting scalpel pen, through matched limiting of the protruding block and the limiting protruding block, self-locking can be achieved after the telescopic distance is adjusted, the situation of mistaken retraction is avoided, and the using convenience, safety and stability of the scalpel pen are improved.

Description

Technical Field

[0001] This invention relates to the field of high-frequency surgical electrode technology, specifically to a retractable limiting surgical scalpel pen and its assembly and manufacturing method. Background Technology

[0002] Medical electrosurgical excision devices, also known as ablation electrodes or high-frequency surgical electrodes, are medical devices specifically designed for surgical procedures. Used in conjunction with high-frequency surgical equipment, they achieve functions such as cutting, coagulation, or ablation of biological tissue during surgery. Their working principle utilizes high-frequency current to cut, coagulate, or vaporize tissue. The high temperature generated by the high-frequency current in a short time causes the tissue to rapidly vaporize and separate, achieving multiple effects simultaneously, including cutting, coagulation, and wound closure. Compared to traditional mechanical cutting instruments, this method effectively reduces bleeding and surgical trauma, while also shortening operation time and postoperative recovery period, thus improving surgical safety.

[0003] In existing technologies, surgical electrode scalpels can all achieve telescopic functionality, but most cannot automatically lock in position after the telescopic distance is adjusted. During use, external force or pressure can easily cause accidental retraction, especially during surgery when working on harder tissues or bone. This frequent retraction forces medical staff to repeatedly adjust the telescopic distance, making it very inconvenient or even unusable, and hindering its application for punctures. Furthermore, current telescopic structures require manual pulling or compressing of the telescopic rod, making it difficult to control the telescopic force. In addition, the telescopic structures of existing surgical electrode scalpels are relatively complex, especially the telescopic outer tube, resulting in high manufacturing difficulty, high production costs, and low assembly efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes a retractable limiting surgical scalpel pen and its assembly and manufacturing method, which can self-lock after adjusting the retractable length.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a retractable and limiting surgical scalpel pen, comprising a shell and a telescopic adjustment component; The telescopic adjustment assembly includes a fixed base, a telescopic adjustment block, and a telescopic inner tube. The fixed base is fixedly installed inside the outer shell and has a sliding groove. Multiple limiting protrusions are provided on the inner wall of the sliding groove along the axial direction. The telescopic adjustment block is slidably connected to the sliding groove and has a protrusion that can be inserted between adjacent limiting protrusions. One end of the telescopic inner tube is connected to the telescopic adjustment block, and the other end extends out to the outside of the outer shell and is connected to an electrode.

[0006] By sliding the telescopic adjustment block, it can slide on the fixed seat groove inside the outer shell, thereby driving the telescopic inner tube and electrode to move and adjust the length and position of the electrode extension and retraction. After the extension and retraction adjustment is completed, the protrusion on the telescopic adjustment block inserts between the adjacent limiting protrusion, preventing the telescopic adjustment block from sliding further in the groove, thus completing the self-locking.

[0007] The beneficial effects of the above-mentioned retractable and limiting surgical scalpel pen are: through the cooperation of the protrusion and the limiting protrusion, the retractable distance can be adjusted and then self-locked to avoid accidental retraction, thereby improving the convenience and safety of using the surgical scalpel pen.

[0008] Furthermore, the telescopic adjustment block is provided with a sliding spring, one end of which is connected to the telescopic adjustment block, and the other end is slidably abutted against the groove.

[0009] In its natural state, the sliding spring lifts the telescopic adjustment block, causing the protrusion to insert between adjacent limiting protrusions. By pressing, it can be deformed, allowing the protrusion to disengage from the adjacent limiting protrusions and slide within the groove to adjust the length.

[0010] Furthermore, the outer shell has a strip-shaped hole, and the telescopic adjustment block has a pressing block that passes through the strip-shaped hole and is slidably connected to it.

[0011] The press block allows users to easily move and press it with their fingers, thereby moving the telescopic adjustment block and adjusting the telescopic distance.

[0012] Furthermore, multiple limiting protrusions are symmetrically provided on both sides of the slide groove, and multiple protrusions are symmetrically provided on both sides of the telescopic adjustment block, and the protrusions are in contact with the inner wall of the slide groove.

[0013] Both sides of the slide are provided with protrusions, and both sides of the telescopic adjustment block are provided with multiple protrusions, which can improve the overall stability of the telescopic adjustment component.

[0014] Furthermore, the telescopic adjustment block is L-shaped, with reinforcing ribs on the inner side of its corners, a protrusion on one side wall, and a connecting post on the other end. The telescopic inner tube is inserted into the connecting post and is interference-fitted.

[0015] The L-shaped telescopic adjustment block is used to fit the internal space of the shell, and the reinforcing ribs can improve the rigidity of the telescopic adjustment block to prevent it from being bent by pressure when it moves.

[0016] Furthermore, the telescopic adjustment assembly also includes a telescopic outer tube, which is fixedly connected to the outer shell, and the telescopic inner tube passes through the telescopic outer tube and is connected to the electrode.

[0017] The telescopic adjustment block can move the telescopic inner tube inside the telescopic outer tube, thereby adjusting the position of the electrode.

[0018] Furthermore, it also includes a conductive spring, which is fixedly installed inside the outer shell and electrically connected to the outside. The conductive spring abuts against the telescopic outer tube, and both the telescopic outer tube and the telescopic inner tube are conductive, with the telescopic outer tube and the telescopic inner tube fitting together.

[0019] The conductive spring contact, by abutting against the telescopic outer tube, can conduct current to the electrode through the telescopic outer tube and the telescopic inner tube, thereby energizing the electrode.

[0020] Furthermore, it also includes an electrode fixing assembly, comprising an upper fixing block and a lower fixing block, both of which are semi-cylindrical shells and are detachably connected. The electrode fixing assembly is interference-fitted with the telescopic inner tube, and the upper and lower fixing blocks are capable of clamping the electrode.

[0021] The upper and lower fixing blocks are used to clamp the electrode. The electrode can be moved by the movement of the telescopic inner tube.

[0022] A method for assembling a retractable limiting surgical scalpel pen, used in any of the retractable limiting surgical scalpel pens described above, includes the following steps: The outer casing includes an upper casing and a lower casing, with the telescopic adjustment assembly installed inside the upper casing; Connect the telescopic inner tube to the telescopic adjustment block; Install the telescopic adjustment block into the slide groove and slide it in connection with it; The buttons are installed inside the lower casing; The upper and lower shells are fixedly connected, and the electrodes are inserted to complete the overall assembly.

[0023] The advantages of the above-mentioned assembly method for a retractable and limiting surgical scalpel pen are: simple structure and few components, easy assembly, and significantly improved production efficiency.

[0024] A method for manufacturing a retractable limiting surgical scalpel pen, used in the assembly method of the aforementioned retractable limiting surgical scalpel pen, wherein the outer shell and the button are made of ABS plastic, and are obtained by injection molding after opening an injection mold; The upper and lower fixing blocks are made of conductive materials and are manufactured by a machining center. The telescopic inner tube and telescopic outer tube are made of conductive material and are cut from finished conductive tubing. The conductive spring is made of conductive material and is obtained by cutting and bending a conductive sheet. The telescopic adjustment block is made of ABS plastic or POM plastic, and is produced by injection molding after opening an injection mold.

[0025] The beneficial effects of the above-mentioned method for manufacturing a retractable and limiting surgical scalpel pen are: it enables the rapid production of various components, and has the advantages of high production efficiency and low cost. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0027] Figure 1 This is a schematic diagram of a retractable limiting surgical scalpel pen according to an embodiment of the present invention; Figure 2 for Figure 1 The diagram shown is an exploded image of a retractable and limiting surgical scalpel pen. Figure 3 for Figure 2 A schematic diagram of a telescopic adjustment component for a telescopic limiting surgical scalpel pen is shown. Figure 4 for Figure 3 A cross-sectional view of a telescopic adjustment component for a telescopic limiting surgical scalpel pen is shown. Figure 5 A flowchart illustrating an assembly method for a retractable limiting surgical scalpel pen according to an embodiment of the present invention; Figure label: 1-Electrode, 10-Outer shell; 20-Telescopic adjustment component, 21-Fixed base, 211-Slide groove, 212-Limiting protrusion, 213-Allowing groove, 22-Telescopic adjustment block, 221-Protrusion, 222-Sliding spring, 223-Pressing block, 224-Reinforcing rib, 225-Connecting column, 23-Telescopic inner tube, 24-Telescopic outer tube; 30 - Button assembly, 31 - PCB board, 32 - Button; 40 - Electrode fixing assembly, 41 - Upper fixing block, 42 ​​- Lower fixing block. Detailed Implementation

[0028] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0029] Please see Figures 1 to 4 The present invention provides a retractable limiting surgical scalpel pen and its assembly and manufacturing method. The surgical scalpel pen includes a shell 10 and a telescopic adjustment component 20. The telescopic adjustment component 20 can adjust the length of the surgical scalpel pen and perform self-locking.

[0030] Specifically, the telescopic adjustment assembly 20 includes a fixed base 21, a telescopic adjustment block 22, and a telescopic inner tube 23. The fixed base 21 is fixedly installed inside the outer shell 10 and has a groove 211 on its surface. Multiple limiting protrusions 212 are provided on the inner wall of the groove 211 along the axial direction. One end of the telescopic adjustment block 22 is inserted into the groove 211 and is slidably connected to it, allowing it to slide along its axial direction. It also has a protrusion 221 that can be inserted between adjacent limiting protrusions 212. One end of the telescopic inner tube 23 is connected to the other end of the telescopic adjustment block 22, and the other end extends out of the outer shell 10 and is connected to the electrode 1.

[0031] By sliding the telescopic adjustment block 22, it can slide on the slide groove 211, thereby moving the telescopic inner tube 23 and the electrode 1 to adjust the length and position of the extended electrode. After the telescopic adjustment is completed, the protrusion 221 on the telescopic adjustment block 22 inserts between the adjacent limiting protrusion 212, preventing the telescopic adjustment block 22 from continuing to slide in the slide groove 211, thus completing self-locking and avoiding accidental retraction during use, improving the convenience and safety of using the scalpel pen.

[0032] Specifically, the telescopic adjustment block 22 is provided with a sliding spring 222. One end of the sliding spring 222 is connected to the telescopic adjustment block 22, and the other end slidably abuts against the slide groove 211. In its natural state, the sliding spring 222 lifts the telescopic adjustment block 22, causing the protrusion 221 to insert between adjacent limiting protrusions 212. By pressing, it can be deformed, allowing the protrusion 221 to disengage from the adjacent limiting protrusions 212 and slide within the slide groove 211 to adjust its position.

[0033] The outer casing 10 also has a strip-shaped hole, and the telescopic adjustment block 22 has a pressing block 223. The pressing block 223 passes through the strip-shaped hole and is slidably connected to it. The pressing block 223 allows the user to easily move and press it with their fingers from the outside, thereby moving the telescopic adjustment block 22 and adjusting the telescopic distance. In addition, for ease of use, the surface of the pressing block 223 is also provided with anti-slip texture.

[0034] Specifically, the inner walls of both sides of the slide groove 211 are symmetrically provided with multiple limiting protrusions 212, and the two sides of the telescopic adjustment block 22 are symmetrically provided with multiple protrusions 221. The protrusions 221 fit against the inner walls of the slide groove 211. When the sliding spring 222 pushes the telescopic adjustment block 22 upward by elastic force, the protrusions 221 can be inserted between adjacent limiting protrusions 212. This structure not only enables the telescopic adjustment block 22 to move stably within the slide groove 211, but also improves the stability during self-locking by setting multiple protrusions 221 to cooperate with multiple limiting protrusions 212.

[0035] Specifically, the telescopic adjustment block 22 is L-shaped, with a reinforcing rib 224 on the inner side of its corner. One end is located inside the slide groove 211 and has a protrusion 221 on its side wall. The other end is bent and has a connecting post 225. The telescopic inner tube 23 is inserted into the connecting post 225 with an interference fit. A clearance groove 213 is opened at the bottom of one end of the slide groove 211. The L-shaped structure is to free up internal space in the outer shell 10 to facilitate the installation of the button assembly 30. The reinforcing rib 224 can improve the rigidity of the L-shaped structure to prevent it from being bent under pressure during movement. The clearance groove 213 is used for the passage of the reinforcing rib 224 to avoid interference.

[0036] The telescopic adjustment assembly 20 also includes a telescopic outer tube 24, which is fixedly installed inside the housing 10. The telescopic inner tube 23 passes through the telescopic outer tube 24 and is connected to the electrode 1. The telescopic adjustment block 22 can drive the telescopic inner tube 23 to move within the telescopic outer tube 24, thereby adjusting the position of the electrode 1. The telescopic outer tube 24 can also serve as a limiting device.

[0037] Specifically, it also includes a button assembly 30, comprising a PCB board 31, a button 32, and a conductive spring 33. The PCB board 31 is fixedly disposed within the housing 10 and has a metal spring on its surface. A wire extending from the housing is connected to the PCB board 31 for connecting to a power source. The button 32 is disposed on the housing 10 and can press the metal spring. The conductive spring 33 is fixedly disposed within the housing 10 and connected to the PCB board 31 via a wire. The conductive spring 33 abuts against the telescopic outer tube 24, and both the telescopic outer tube 24 and the telescopic inner tube 23 are made of conductive materials. The inner wall of the telescopic outer tube 24 is in contact with the outer wall of the telescopic inner tube 23, thereby enabling current to be supplied to the electrodes.

[0038] By pressing button 32 onto the metal spring, making it contact the PCB board 31, the function of electrode 1 can be switched. Button 32 and pressing block 223 are respectively located on both sides of the housing 10 for easy access and adjustment by the user. In addition, the housing 10 is provided with multiple parallel wire fixing ribs, with long and short ribs arranged alternately, which not only improves the rigidity of the housing 10 but also fixes the wires.

[0039] Specifically, it also includes an electrode fixing assembly 40, comprising an upper fixing block 41 and a lower fixing block 42. Both the upper fixing block 41 and the lower fixing block 42 are semi-cylindrical shells and are snap-fitted together. The electrode fixing assembly 40 is interference-fitted with the telescopic inner tube 23. The upper fixing block 41 and the lower fixing block 42 are used to clamp the electrode 1. The electrode 1 can be moved by moving the telescopic inner tube 23.

[0040] The working principle of the aforementioned retractable and limiting surgical scalpel pen is as follows: During use, pressing the pressing block 223 lowers the telescopic adjustment block 22 and deforms the sliding spring 222. After the protrusion 221 disengages from the limiting protrusion 212, the pressing block 223 can be slid to adjust the distance. After adjustment, releasing the pressing block 223 allows the telescopic adjustment block 22 to rise under the action of the sliding spring 222, causing the protrusion 221 to insert between adjacent limiting protrusions 212, thus achieving self-locking. Then, pressing the button 32 switches the electrode 1 function for operation.

[0041] The assembly method is used for the above-mentioned retractable limiting surgical scalpel pen, such as... Figure 5 As shown, it includes the following steps: The outer shell consists of an upper shell and a lower shell, and is installed in two parts: the upper shell and the lower shell. When installing the upper shell, insert the electrode fixing assembly into the telescopic inner tube and allow it to be interference-fitted. The telescopic inner tube is connected to the telescopic adjustment block via a connecting column; Install the telescopic adjustment block into the groove of the fixed base and slide it in connection with it; Slide the telescopic outer tube onto the telescopic inner tube, and then install the telescopic outer tube and the fixing seat into the upper shell; When installing the lower shell, install the conductive spring into the lower shell; The PCB board is installed through the PCB positioning holes inside the housing; The buttons are installed through the button mounting holes inside the housing; Finally, the upper and lower shells are joined and installed, and then fixed by ultrasonic welding. The electrodes are then inserted into the electrode fixing assembly to complete the overall assembly.

[0042] The manufacturing method is used in the above-mentioned retractable limiting surgical scalpel pen and its assembly method, specifically: The outer shell and buttons are made of ABS plastic, which is produced by injection molding after opening an injection mold.

[0043] The upper and lower fixing blocks are made of conductive materials, such as copper, copper alloys, or aluminum. In this embodiment, beryllium copper is used, which is manufactured by a machining center. Beryllium copper is softer than the stainless steel material of the telescopic inner tube described below, making it easier to fit tightly with the telescopic inner tube. It also has advantages such as good conductivity, ease of molding, and low cost.

[0044] The inner and outer telescopic tubes are made of conductive materials. In this embodiment, stainless steel tubes are selected and cut to cost-effectiveness, and silver is plated on their surface to improve conductivity. This results in good strength and conductivity while reducing production costs.

[0045] The conductive spring is made of conductive material. In this embodiment, stainless steel plate is cut into stainless steel sheets, then bent into shape, and silver is plated on its surface to improve conductivity.

[0046] The telescopic adjustment block and the fixed base are made of engineering plastics such as ABS plastic or POM plastic, and are produced by injection molding after opening an injection mold.

[0047] The aforementioned retractable and limiting surgical scalpel pen, along with its assembly and manufacturing method, achieves self-locking through the interlocking structure of the protrusions and limiting protrusions after the retraction distance is adjusted, thus solving the problem of accidental retraction during use. Furthermore, it allows for easier application of force by the user during retraction, improving usability. The structure is relatively simple with few components, facilitating assembly and significantly improving production efficiency. In addition, the manufacturing methods for each component are quick and efficient, with low material costs, further enhancing production efficiency while reducing overall production costs.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A retractable and limiting surgical scalpel pen, characterized in that: Includes the outer casing and telescopic adjustment components; The telescopic adjustment assembly includes a fixed base, a telescopic adjustment block, and a telescopic inner tube. The fixed base is fixedly installed inside the outer shell and has a sliding groove. Multiple limiting protrusions are provided on the inner wall of the sliding groove along the axial direction. The telescopic adjustment block is slidably connected to the sliding groove and has a protrusion that can be inserted between adjacent limiting protrusions. One end of the telescopic inner tube is connected to the telescopic adjustment block, and the other end extends out to the outside of the outer shell and is connected to an electrode.

2. The retractable limiting surgical scalpel pen according to claim 1, characterized in that: The telescopic adjustment block is provided with a sliding spring, one end of which is connected to the telescopic adjustment block, and the other end is slidably abutted against the groove.

3. The retractable limiting surgical scalpel pen according to claim 1, characterized in that: The outer shell has a strip-shaped hole, and the telescopic adjustment block has a pressing block that passes through the strip-shaped hole and is slidably connected to it.

4. The retractable limiting surgical scalpel pen according to claim 1, characterized in that: The slide groove is symmetrically provided with multiple limiting protrusions on both sides, and the telescopic adjustment block is symmetrically provided with multiple protrusions on both sides, and the protrusions are in contact with the inner wall of the slide groove.

5. The retractable limiting surgical scalpel pen according to claim 1, characterized in that: The telescopic adjustment block is L-shaped, with reinforcing ribs on the inner side of its corners, a protrusion on one side wall, and a connecting post on the other end. The telescopic inner tube is inserted into the connecting post and is interference-fitted.

6. The retractable limiting surgical scalpel pen according to claim 1, characterized in that: The telescopic adjustment assembly also includes a telescopic outer tube, which is fixedly connected to the outer shell, and a telescopic inner tube passes through the telescopic outer tube and is connected to the electrode.

7. The retractable limiting surgical scalpel pen according to claim 6, characterized in that: It also includes a conductive spring, which is fixedly installed inside the outer shell and electrically connected to the outside. The conductive spring abuts against the telescopic outer tube. Both the telescopic outer tube and the telescopic inner tube are conductive, and the telescopic outer tube and the telescopic inner tube are in close contact.

8. The retractable limiting surgical scalpel pen according to claim 7, characterized in that: It also includes an electrode fixing assembly, comprising an upper fixing block and a lower fixing block, both of which are semi-cylindrical shells and are detachably connected. The electrode fixing assembly is interference-fitted with the telescopic inner tube, and the upper and lower fixing blocks are capable of clamping the electrode.

9. A method for assembling a retractable limiting surgical scalpel pen, used in any one of claims 1-8, characterized in that, Includes the following steps: The outer casing includes an upper casing and a lower casing, with the telescopic adjustment assembly installed inside the upper casing; Connect the telescopic inner tube to the telescopic adjustment block; Install the telescopic adjustment block into the slide groove and slide it in connection with it; The buttons are installed inside the lower casing; The upper and lower shells are fixedly connected, and the electrodes are inserted to complete the overall assembly.

10. A method for manufacturing a retractable limiting surgical scalpel pen, used in the assembly method of the retractable limiting surgical scalpel pen as described in claim 9, characterized in that: The outer shell and buttons are made of ABS plastic, which is produced by injection molding after opening an injection mold. The upper and lower fixing blocks are made of conductive materials and are manufactured by a machining center. The telescopic inner tube and telescopic outer tube are made of conductive material and are cut from finished conductive tubing. The conductive spring is made of conductive material and is obtained by cutting and bending a conductive sheet. The telescopic adjustment block is made of ABS plastic or POM plastic, and is produced by injection molding after opening an injection mold.

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