Electrotome with smoke suction function and telescopic and laterally inclined tool bit

By designing an electric knife with a smoke extraction function and a retractable and tiltable blade, the angle and extension of the blade head can be adjusted using an adjustment mechanism and a power supply mechanism. This solves the problem of the non-adjustable blade angle in existing electric knife pens and improves cutting flexibility.

CN224112748UActive Publication Date: 2026-04-14WUHAN CHUANGERSHENG BIOTECHNOLOGY CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN CHUANGERSHENG BIOTECHNOLOGY CO LTD
Filing Date
2025-01-09
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing electric knife pens have a non-adjustable blade angle, which limits the cutting angle and makes them inconvenient to use.

Method used

An electric knife with a smoke extraction function and a retractable and tiltable blade head was designed. The tilt angle and extension of the electric knife head are adjusted by an adjustment mechanism, which includes an adjustment bolt, a rotating shaft, a positioning device, and a telescopic device. Combined with a power supply mechanism and a power component, the electric knife head can be flexibly adjusted.

Benefits of technology

This solves the problem of the non-adjustable blade angle when using an electric knife pen, improving the flexibility and convenience of cutting.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224112748U_ABST
    Figure CN224112748U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of medical apparatus and instruments, in particular to an electrotome with a smoke suction function and a telescopic and laterally inclined tool bit. Comprising an electrotome body, a smoke suction hose, a power supply mechanism and an adjusting mechanism, and the adjusting mechanism comprises a hollow smoke suction pipe, a guide cover plate, a sliding column, an adjusting seat, a rotating shaft, a threaded seat, adjusting bolts, a positioning device and a telescopic device. The adjusting bolt on one side is rotated to be away from the tail of the adjusting seat, then the adjusting bolt on the other side is rotated to be close to the tail of the adjusting seat, and the adjusting seat can rotate obliquely through cooperation of the rotating shaft, so that the inclination angle of the electrotome head can be adjusted, and the positioning device and the telescopic device can facilitate telescopic adjustment of the electrotome head. Therefore, the problems that when an existing electric knife pen is used, the angle of a knife head cannot be adjusted according to the use condition, the cutting angle is limited to a certain degree, and use is inconvenient can be solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an electrosurgical unit with a smoking function and a retractable and tiltable blade. Background Technology

[0002] When using existing electrosurgical razors, because the razors are relatively smooth, the lack of friction can cause them to slip from the hand and be damaged.

[0003] Existing technology CN210019635U discloses a retractable electrosurgical pen, including an electrosurgical pen body. A mounting plate is provided on one outer wall of the pen body near the bottom, and a control button is installed on one outer wall of the mounting plate. Grooves are formed on both outer walls of the pen body, and anti-slip pads are glued to the inner walls of both grooves. Equally spaced protrusions are provided on one outer wall of each anti-slip pad. A sleeve is fixed to the bottom outer wall of the pen body, and a rectangular opening is formed on one outer wall of the sleeve. A slider is slidably connected to the inner wall of the rectangular opening, and a sleeve rod is fixed to the bottom outer wall of the slider. This invention prevents the electrosurgical pen from slipping from the hand and being damaged due to insufficient friction during use. It allows the blade to extend and retract as needed, prevents dust from contaminating the blade, and prevents the blade retraction from affecting the work of medical personnel.

[0004] However, the angle of the blade cannot be adjusted according to the usage situation when using the above-mentioned electric knife pen, and the cutting angle is limited to a certain extent, making it inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to provide an electric knife with a smoke-absorbing function and a retractable and tiltable blade, which aims to solve the problem that the angle of the blade cannot be adjusted according to the usage situation when using existing electric knife pens, the cutting angle is limited, and the use is inconvenient.

[0006] To achieve the above objectives, this utility model provides an electric knife with a smoking function and a retractable and tiltable blade, including an electric knife body, a smoking hose and a power supply mechanism at the tail of the electric knife body, and an adjustment mechanism;

[0007] The adjustment mechanism includes a hollow smoke tube, a guide cover plate, a sliding column, an adjustment seat, a rotating shaft, a threaded seat, an adjusting bolt, a positioning device, and a telescopic device. The hollow smoke tube is fixed to the front side of the electrosurgical body, the guide cover plate is fixed to the front side of the hollow smoke tube, the sliding column is slidably connected to the guide cover plate and connected to the telescopic device, the adjustment seat is rotatably mounted on the sliding column via the rotating shaft, the electrosurgical head is mounted on the adjustment seat, the threaded seat is fixed on the adjustment seat and symmetrically arranged, the adjusting bolt is threadedly connected to the threaded seat and passes through the threaded seat, and its bottom is provided with a semi-circular head end, the positioning device is located on the side of the hollow smoke tube near the electrosurgical body, and the telescopic device is located inside the hollow smoke tube.

[0008] The positioning device includes a rectangular plate and a mounting bracket. The rectangular plate is detachably connected to the hollow smoke pipe and has several smoke passage holes arranged in a ring. The mounting bracket is integrally formed with the rectangular plate and is located inside the hollow smoke pipe.

[0009] The telescopic device includes a fixed plate, a sliding plate, and a power component. The fixed plate is welded to the mounting frame. The sliding plate is slidably connected to the mounting frame and fixedly connected to the sliding column. The power component is located on the side of the fixed plate near the sliding plate.

[0010] The power assembly includes a miniature electric actuator and a guide pin. The miniature electric actuator is electrically connected to the electric knife body and is fixedly mounted on the fixed plate, with its output end connected to the slide plate. The guide pin is threadedly connected to the slider and slidably connected to the mounting bracket, and there are two of them.

[0011] The power supply mechanism includes a movable cable and a plug. The movable cable is located at the tail of the electrosurgical body. The plug is electrically connected to the movable cable and is plugged into an external power source.

[0012] This utility model discloses an electric knife with a smoke extraction function and a retractable and tiltable blade. During use, the tilt angle of the adjustment seat can be pre-adjusted by adjusting the mating positions of two adjusting bolts. Specifically, one adjusting bolt is rotated away from the tail of the adjustment seat, and the other adjusting bolt is rotated closer to the tail of the adjustment seat. With one adjusting bolt limiting the movement and the other pushing, and through the cooperation of a rotating shaft, the adjustment seat can be tilted and rotated, thus achieving the tilt angle adjustment of the electric knife head. The positioning device and the telescopic device facilitate the telescopic adjustment of the electric knife head, thereby solving the problem that the angle of the blade head cannot be adjusted according to the usage situation in existing electric knife pens, resulting in a limited cutting angle and inconvenience. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the electric knife with a smoke-absorbing function and a retractable and tiltable blade tip according to this utility model.

[0015] Figure 2 This is a schematic diagram of the hollow smoking tube of this utility model.

[0016] Figure 3 This is a structural schematic diagram of the mounting bracket of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the adjusting bolt of this utility model.

[0018] In the diagram: 101-Electrical knife body, 102-Smoking hose, 103-Hollow smoking tube, 104-Guide cover, 105-Sliding column, 106-Adjusting seat, 107-Electrical knife head, 108-Rotating shaft, 109-Threaded seat, 110-Adjusting bolt, 111-Rectangular plate, 112-Mounting bracket, 113-Fixing plate, 114-Slide plate, 115-Miniature electric actuator, 116-Guide pin, 117-Moving cable, 118-Plug, 119-Electrical cutting button, 120-Electrical coagulation button, 121-Telescopic control button. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] like Figures 1 to 4 As shown, where Figure 1 This is a schematic diagram of the overall structure of an electrosurgical unit with a smoke extraction function and a retractable, tiltable cutting head. Figure 2 This is a structural schematic diagram of the hollow smoke tube 103. Figure 3 This is a structural schematic diagram of mounting bracket 112. Figure 4This is a structural schematic diagram of the adjusting bolt 110. This utility model provides an electric knife with a smoke extraction function and a retractable, tiltable blade: it includes an electric knife body 101, a smoke extraction hose 102, a power supply mechanism, and an adjusting mechanism. The adjusting mechanism includes a hollow smoke extraction tube 103, a guide cover plate 104, a sliding column 105, an adjusting seat 106, a rotating shaft 108, a threaded seat 109, an adjusting bolt 110, a positioning device, and a telescopic device. The positioning device includes a rectangular plate 111 and a mounting bracket 112. The telescopic device includes a fixed plate 113, a sliding plate 114, and a power assembly. The power assembly includes a miniature electric push rod 115 and a guide pin 116. The power supply mechanism includes a movable cable 117 and a plug 118. This solution solves the problem that the angle of the blade tip cannot be adjusted according to the usage of existing electric knife pens, resulting in a limited cutting angle and inconvenience. It is understood that the aforementioned solution can achieve adjustment of the tilt angle of the electric knife head 107.

[0021] In this embodiment, the tail of the electrosurgical body 101 is provided with a smoking hose 102 and a power supply mechanism. The smoking hose 102 is connected to the inlet pipe of the external processing equipment. The inside of the housing of the electrosurgical body 101 is provided with an electrical component installation cavity and a smoke ventilation cavity. The two cavities are not connected and are provided with an electrocuting button 119, an electrocoagulation button 120 and a telescopic control button 121.

[0022] The hollow smoke tube 103 is fixed to the front side of the electrosurgical body 101, the guide cover plate 104 is fixed to the front side of the hollow smoke tube 103, the sliding column 105 is slidably connected to the guide cover plate 104 and connected to the telescopic device, the adjusting seat 106 is rotatably mounted on the sliding column 105 via the rotating shaft 108, the electrosurgical head 107 is mounted on the adjusting seat 106, the threaded seat 109 is fixed on the adjusting seat 106 and symmetrically arranged, the adjusting bolt 110 is threadedly connected to the threaded seat 109 and passes through the threaded seat 109, and its bottom is provided with a semi-circular head end, the positioning device is located on the side of the hollow smoke tube 103 near the electrosurgical body 101, and the telescopic device is located inside the hollow smoke tube 103. The hollow smoke tube 103 has a T-shaped cross-section. The fixing plate is fixed to the front side of the housing of the electric knife body 101 by countersunk bolts. The guide cover plate 104 is fixed to the hollow smoke tube 103 by bolts and has three smoke passage chambers arranged in a ring. At the same time, the working cable of the electric knife head 107 can also pass through the smoke passage chambers on the guide cover plate 104. The guide cover plate 104 is provided with a sliding hole that cooperates with the sliding column 105. The adjusting seat 106 is long and rectangular and is fixedly mounted with the electric knife head 107. The front side of the adjusting seat 106 is provided with a circular hole to facilitate the insertion of the rotating shaft 108. The sliding column 105 is provided with a through hole to cooperate with the rotating shaft 108. The rotating shaft 108 has retaining spring grooves on both sides to limit movement and prevent movement. The threaded seat 109 is fixed to the sliding column 105 by bolts and is symmetrically arranged. The adjusting bolt 110 is threadedly connected to the threaded seat 109 and is provided through it. Its bottom is provided with a semi-circular end. The function of this structure is that when the tail of the adjusting seat 106 is tilted, the adjusting bolt 110 can also provide good abutment. The positioning device and the telescopic device cooperate to realize the extension and retraction of the electric knife head 107.

[0023] Secondly, the rectangular plate 111 is detachably connected to the hollow smoke extraction tube 103 and has several smoke passage holes arranged in a ring. The mounting bracket 112 is integrally formed with the rectangular plate 111 and is located inside the hollow smoke extraction tube 103. The hollow smoke extraction tube 103 has a stepped groove on the end face of the housing near the electric knife body 101 to facilitate the installation of the rectangular plate 111 by countersunk bolts. The rectangular plate 111 has several smoke passage holes arranged in a ring to facilitate smoke passage and cable installation. The mounting bracket 112 has two guide grooves.

[0024] Then, the fixing plate 113 is welded to the mounting bracket 112; the sliding plate 114 is slidably connected to the mounting bracket 112 and fixedly connected to the sliding column 105; the power assembly is located on the side of the fixing plate 113 near the sliding plate 114. The top of the sliding plate 114 is provided with two threaded holes, the bottom is slidably engaged with the mounting bracket 112, and the U-shaped end of the sliding column 105 is engaged with the sliding plate 114 and then fixed by bolts.

[0025] Furthermore, the miniature electric actuator 115 is electrically connected to the electric knife body 101 and fixedly mounted on the fixing plate 113, with its output end connected to the slide plate 114; the guide pins 116 are threadedly connected to the slider 114 and slidably connected to the mounting bracket 112, and there are two of them. The miniature electric actuator 115 is fixed by bolts, and its output end is connected to the slide plate 114 by countersunk bolts. The top of the slide plate 114 is provided with two threaded holes to facilitate the installation of the guide pins 116. The top end face of the guide pin 116 is provided with an internal hexagonal hole to facilitate rotation, and the end of the optical axis can slide in the guide groove on the mounting bracket 112.

[0026] Finally, the movable cable 117 is located at the tail of the electrosurgical body 101; the plug 118 is electrically connected to the movable cable 117 and is plugged into an external power source. The movable cable 117 and the plug 118 work together to connect to an external power source and provide power to the electrosurgical unit.

[0027] When using this invention to solve the problem that the angle of the blade tip cannot be adjusted according to the usage situation in existing electric knife pens, resulting in a limited cutting angle and inconvenience, the tilt angle of the adjusting seat 106 can be adjusted in advance by adjusting the mating position of the two adjusting bolts 110. Specifically, one adjusting bolt 110 is rotated away from the tail of the adjusting seat 106, and then the other adjusting bolt 110 is rotated and moved closer to the tail of the adjusting seat 106. This limits the movement of one adjusting bolt 110 while allowing the other to move closer. Under the push structure, and in cooperation with the rotating shaft 108, the adjustment seat 106 can be tilted and rotated, thereby adjusting the tilt angle of the electric knife head 107. Then, the telescopic control button 121 provided on the electric knife body 101 can control the micro electric push rod 115 to push the slide plate 114 to slide, thereby pushing the sliding column 105 to move, realizing the telescopic extension and retraction of the electric knife head 107. This solves the problem that the angle of the knife head cannot be adjusted according to the usage situation when using existing electric knife pens, the cutting angle is limited, and the use is inconvenient.

[0028] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An electrosurgical unit with a smoke extraction function and a retractable, laterally tiltable blade, comprising an electrosurgical body, wherein a smoke extraction hose and a power supply mechanism are provided at the tail end of the electrosurgical body, characterized in that: It also includes adjustment mechanisms; The adjustment mechanism includes a hollow smoke tube, a guide cover plate, a sliding column, an adjustment seat, a rotating shaft, a threaded seat, an adjusting bolt, a positioning device, and a telescopic device. The hollow smoke tube is fixed to the front side of the electrosurgical body, the guide cover plate is fixed to the front side of the hollow smoke tube, the sliding column is slidably connected to the guide cover plate and connected to the telescopic device, the adjustment seat is rotatably mounted on the sliding column via the rotating shaft, the electrosurgical head is mounted on the adjustment seat, the threaded seat is fixed on the adjustment seat and symmetrically arranged, the adjusting bolt is threadedly connected to the threaded seat and passes through the threaded seat, and its bottom is provided with a semi-circular head end, the positioning device is located on the side of the hollow smoke tube near the electrosurgical body, and the telescopic device is located inside the hollow smoke tube.

2. The electrosurgical unit with a smoke-absorbing function and a retractable, laterally tiltable cutting head as described in claim 1, characterized in that: The positioning device includes a rectangular plate and a mounting bracket. The rectangular plate is detachably connected to the hollow smoke pipe and has several smoke passage holes arranged in a ring. The mounting bracket is integrally formed with the rectangular plate and is located inside the hollow smoke pipe.

3. The electrosurgical unit with a smoke-absorbing function and a retractable, laterally tiltable cutting head as described in claim 2, characterized in that: The telescopic device includes a fixed plate, a sliding plate, and a power component. The fixed plate is welded to the mounting frame. The sliding plate is slidably connected to the mounting frame and fixedly connected to the sliding column. The power component is located on the side of the fixed plate near the sliding plate.

4. The electrosurgical unit with a smoke-absorbing function and a retractable, laterally tiltable cutting head as described in claim 3, characterized in that: The power assembly includes a miniature electric actuator and a guide pin. The miniature electric actuator is electrically connected to the electric knife body and is fixedly mounted on the fixed plate, and its output end is connected to the slide plate. The guide pin is threadedly connected to the slide plate and slidably connected to the mounting bracket, and there are two of them.

5. The electric knife with smoking function and side slanting retractable blade head according to claim 1, characterized in that : The power supply mechanism includes a movable cable and a plug. The movable cable is located at the tail of the electrosurgical body. The plug is electrically connected to the movable cable and is plugged into an external power source.

Citation Information

Patent Citations

  • Telescopic electrotome pen

    CN210019635U