Telescopic electric knife pen

By designing a limit component and a snap-locking slot structure for the toggle switch on the electric scalpel, the problem of the LED light being accidentally turned on during transportation is solved, the standby time of the device is extended, and the normal use of the electric scalpel in emergency situations is ensured.

CN224126043UActive Publication Date: 2026-04-17BAISHENG MEDICAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BAISHENG MEDICAL
Filing Date
2025-03-21
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

During transportation, vibration or collision may cause the LED light switch of the electric drill to be accidentally triggered, resulting in unnecessary power consumption and affecting the standby time and normal use in emergency situations.

Method used

A telescopic electric knife pen was designed. Through the cooperation of a limiting component and a toggle switch, a buckle and slot structure is used to prevent the toggle switch from being accidentally triggered during transportation, ensuring that the LED beads are not accidentally turned on when they are in the off state. The limiting part is used to block the toggle switch from moving forward.

Benefits of technology

It effectively avoids accidental activation of LED beads, extends the standby time of the device, and ensures that it can provide the longest standby time when needed. It has a simple structure and is easy to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a telescopic electrotome pen which comprises a pen body and a limiting piece, the pen body is provided with an inner cavity, a circuit board is installed in the inner cavity, a telescopic electrode and an LED lamp bead which are electrically connected with the circuit board are installed at the front end of the pen body, a power connection seat is arranged on the middle rear portion of the pen body, and a toggle switch electrically connected with the circuit board is installed on the front portion of the power connection seat. The toggle switch can move back and forth to control the LED lamp bead to work, and a storage battery electrically connected with the circuit board is arranged in the rear portion of the pen body. A toggle part is arranged at the front end of the limiting piece, a limiting part is arranged at the rear end of the limiting piece, buckling parts are arranged on the left side and the right side of the limiting piece respectively, clamping grooves are correspondingly formed in the two sides of the power connection base respectively, the buckling parts can be clamped in the clamping grooves, and when the buckling parts are clamped in the clamping grooves, the limiting part can prevent the toggle switch from moving forwards. According to the embodiment of the utility model, the lamp source can be effectively prevented from being accidentally turned on in the transportation process.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a telescopic electrosurgical pen. Background Technology

[0002] In the field of medical devices, electrosurgical scalpels are common surgical tools used to cut and coagulate biological tissues using high-frequency current. With technological advancements, electrosurgical scalpel designs have become increasingly complex, integrating additional functions such as LED lighting to improve surgical efficiency and precision, in addition to basic cutting and coagulation. However, during transportation, various external factors, such as vibration or accidental impacts, may cause the light switch on the electrosurgical scalpel to be accidentally triggered, resulting in unintended activation of the light source and unnecessary battery drain. This not only shortens the device's standby time but may also affect normal use in emergency situations. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a telescopic electric drill that can effectively prevent the lamp source from being accidentally turned on during transportation.

[0004] A retractable electrosurgical pen according to this utility model includes a pen body and a limiting member. The pen body has an inner cavity, in which a circuit board is installed. A retractable electrode and an LED bead electrically connected to the circuit board are installed at the front end of the pen body. An electrocutting button and an electrocoagulation button electrically connected to the circuit board are installed at the front middle part of the pen body. A power socket is provided at the rear middle part of the pen body. A toggle switch electrically connected to the circuit board is installed at the front of the power socket. The toggle switch can move back and forth to control the operation of the LED bead. The rear of the power socket... The pen body is provided with an electrical receiving cavity that conducts through the inner cavity so that a power supply line can pass through. The two ends of the power supply line are electrically connected to the circuit board and an external power source, respectively. A battery electrically connected to the circuit board is built into the rear part of the pen body. A toggle part is provided at the front end of the limiting member, and a limiting part is provided at the rear end of the limiting member. A latching part is provided on the left and right sides of the limiting member, and a corresponding slot is provided on both sides of the electrical receiving base. The latching part can be latched into the slot. When the latching part is latched into the slot, the limiting part can prevent the toggle switch from moving forward.

[0005] The telescopic electric knife pen according to the above embodiments of the present invention has at least the following beneficial effects:

[0006] Understandably, the user moves the toggle switch forward to turn on the LED lights and backward to turn them off. When the LED lights are off, a limiting component is installed through the cooperation of the latch and the slot, placing the limiting component in front of the toggle switch to prevent it from moving forward. This effectively prevents accidental triggering of the toggle switch due to vibration or other external factors during transportation, thus avoiding accidental turning on of the LED lights and solving the problem of battery drain caused by accidental activation. This ensures the device provides the longest possible standby time when needed. To turn on the LED lights, the user simply moves the toggle switch forward with their finger to disengage the latch from the slot. The structure is simple and the operation is convenient.

[0007] According to some embodiments of the present invention, the surface of the actuating part is provided with anti-slip texture.

[0008] According to some embodiments of the present invention, the actuating part extends forward to the outside of the power contact socket.

[0009] According to some embodiments of this utility model, the two buckle portions are arranged symmetrically.

[0010] According to some embodiments of the present invention, the exposed portion of the toggle switch is arched and has a wavy texture on its surface.

[0011] According to some embodiments of this utility model, there are two LED beads, which are symmetrically distributed on both sides of the retractable electrode.

[0012] According to some embodiments of this utility model, the electric cutting button is yellow, the electric coagulation button is blue, and the toggle switch is green.

[0013] According to some embodiments of the present invention, the surface of the electric cutting button is provided with anti-foolproof texture.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0016] Figure 1 This is a schematic diagram of the structure of the telescopic electric knife pen according to an embodiment of the present invention;

[0017] Figure 2 This is a partial structural schematic diagram of a telescopic electric knife pen according to an embodiment of the present invention;

[0018] Figure 3This is a cross-sectional view of a telescopic electric knife pen according to an embodiment of the present invention.

[0019] In the attached figures, the following labels are used:

[0020] Pen body 100; inner cavity 101; circuit board 110; retractable electrode 120; LED lamp bead 130; electric cut button 140; electric coagulation button 150; power connector 160; power connector cavity 161; card slot 162; toggle switch 170; battery 180;

[0021] Limiting component 200; Actuating part 210; Limiting part 220; Buckling part 230. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution. In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] Reference Figures 1 to 3 According to this utility model, a retractable electric knife pen includes a pen body 100 and a limiting member 200. The pen body 100 has an inner cavity 101, on which a circuit board 110 is installed. A retractable electrode 120 and an LED bead 130 electrically connected to the circuit board 110 are installed at the front end of the pen body 100. An electric cutting button 140 and an electric coagulation button 150 electrically connected to the circuit board 110 are installed at the front middle part of the pen body 100. A power connector 160 is provided at the rear middle part of the pen body 100. A toggle switch 170 electrically connected to the circuit board 110 is installed at the front of the power connector 160. The toggle switch 170 can move back and forth to control the operation of the LED bead 130. The rear of the base 160 is provided with a power receiving cavity 161 that is connected to the inner cavity 101 so that a power supply line passes through. The two ends of the power supply line are electrically connected to the circuit board 110 and an external power source, respectively. The rear of the pen body 100 is equipped with a battery 180 that is electrically connected to the circuit board 110. The front end of the limiting member 200 is provided with a toggle part 210, and the rear end of the limiting member 200 is provided with a limiting part 220. The left and right sides of the limiting member 200 are provided with latching parts 230, and the sides of the power receiving base 160 are respectively provided with slots 162. The latching parts 230 can be latched into the slots 162. When the latching parts 230 are latched into the slots 162, the limiting parts 220 can prevent the toggle switch 170 from moving forward.

[0027] Understandably, when a user moves the toggle switch 170 forward to turn on the LED bead 130 and moves it backward to turn it off, the limiting member 200 is installed through the cooperation of the latching part 230 and the slot 162 when the LED bead 130 is off. This limits the position of the limiting part 220 in front of the toggle switch 170, preventing it from moving forward. This effectively prevents the toggle switch 170 from being accidentally triggered by external factors such as vibration during transportation, thus avoiding accidental activation of the LED bead 130 and solving the problem of battery drain caused by accidental activation. This ensures that the device can provide the longest standby time when needed. When the user needs to turn on the LED bead 130, they only need to move the toggle part 210 forward with their finger to disengage the latching part 230 from the slot 162. The structure is simple and the operation is convenient.

[0028] Preferably, according to some embodiments of the present invention, the surface of the actuating part 210 is provided with anti-slip texture to increase friction so that the user can smoothly actuate the limiting part 200.

[0029] Preferably, according to some embodiments of the present invention, the toggle part 210 extends forward to the outside of the power base 160, so that in addition to toggling the limiting member 200, the user can also pinch the toggle part 210 and pull it outward to disengage the latch part 230 from the slot 162.

[0030] Preferably, according to some embodiments of the present invention, the two buckle portions 230 are arranged symmetrically, which ensures the stability and consistency of the limiting member 200 during installation, avoids the problem of unstable installation or limiting failure caused by asymmetry, and improves the reliability and durability of the equipment.

[0031] Preferably, according to some embodiments of the present invention, the exposed portion of the toggle switch 170 is arched and has a wavy texture on its surface, which increases friction to facilitate precise control of the switch state and reduce the risk of misoperation.

[0032] Preferably, according to some embodiments of the present invention, there are two LED beads 130, which are symmetrically distributed on both sides of the retractable electrode 120, thereby providing a more uniform lighting effect, which helps to improve the visibility of the surgical area, thereby improving the accuracy and safety of the surgery.

[0033] Preferably, according to some embodiments of the present invention, the electric cutting button 140 is yellow, the electric coagulation button 150 is blue, and the toggle switch 170 is green. By distinguishing different function buttons by different colors, the corresponding functions can be quickly identified and operated, reducing the chance of confusion and incorrect operation.

[0034] Preferably, according to some embodiments of the present invention, the pen body 100 is composed of an upper shell and a lower shell, which facilitates disassembly and assembly, and makes subsequent maintenance and replacement of the battery 180 easier.

[0035] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A telescopic electrosurgical pencil characterized by, include: The pen body has an inner cavity in which a circuit board is installed. A retractable electrode and an LED bead electrically connected to the circuit board are installed at the front end of the pen body. An electric cut-off button and an electric coagulation button electrically connected to the circuit board are installed at the front middle part of the pen body. A power socket is provided at the rear middle part of the pen body. A toggle switch electrically connected to the circuit board is installed at the front of the power socket. The toggle switch can move back and forth to control the operation of the LED bead. A power receiving cavity through the inner cavity is provided at the rear of the power socket so that a power supply wire can pass through. The two ends of the wire are electrically connected to the circuit board and an external power source, respectively. A rechargeable battery electrically connected to the circuit board is built into the rear of the pen body. The limiting component has a toggle part at its front end and a limiting part at its rear end. It also has a latching part on its left and right sides, and a corresponding slot on each side of the power connector. The latching part can engage with the slot, and when the latching part engages with the slot, the limiting part can prevent the toggle switch from moving forward.

2. The telescopic electrosurgical pencil of claim 1, wherein, The surface of the actuating part is provided with anti-slip texture.

3. The telescopic electrosurgical pencil of claim 2, wherein, The actuating part extends forward to the outside of the electrical connector.

4. The telescopic electrosurgical pencil of claim 1, wherein, The two buckle parts are arranged symmetrically.

5. The telescopic electrosurgical pencil of claim 1, wherein, The exposed portion of the toggle switch is arched and has a wavy texture on its surface.

6. The telescopic electrosurgical pencil of claim 1, wherein, There are two LED beads, which are symmetrically distributed on both sides of the retractable electrode.

7. The telescopic electrosurgical pencil of claim 1, wherein, The electric cutting button is yellow, the electric coagulation button is blue, and the toggle switch is green.

8. The telescopic electrosurgical pencil of claim 1, wherein, The surface of the electric cutting button is provided with a foolproof texture.