Surgical electrotome pen with key waterproof structure

Abstract

The utility model discloses a surgical electrotome pen with a key waterproof structure, which comprises a handle, a key is mounted on the upper surface of the handle, a silica gel pad is arranged below the key, the bottom of the silica gel pad is attached to a circuit board, and a protruding cylindrical structure is arranged on the upper surface of the silica gel pad. The outer surface of the cylindrical structure is in interference contact with the inner wall of the concave hole at the position of the button hole of the handle to form a sealing structure, and when liquid enters the button hole through the gap at the button position, the liquid is blocked by the sealing structure formed by the silica gel pad and the inner wall of the concave hole at the position of the button hole of the handle. The liquid cannot further enter the inner cavity of the handle, so that the liquid can be effectively prevented from flowing into the electrotome pen through a key gap in the operation process, and the problems of liquid inlet failure of a circuit board and insulation failure of a shell are completely eradicated.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, in particular to a surgical electric knife pen with a button waterproof structure. Background Art

[0002] In clinical use, the ablation electrode is directly used in the patient's body to ablate lesions or tissues and to stop bleeding and coagulate wounds. The existing ablation electrode is provided with a button on the upper surface, the button is connected to the handle through a hole, and the lower surface of the button is in contact with the button shrapnel on the circuit board. The surgical electrosurgical pen is in a powered state during operation, and the effectiveness and reliability of insulation safety are very important for the operator during the operation. Because the button is a movable part and there is a matching gap, there may be blood and other liquids on the operator's hand during the operation. In the process of pressing the button, the liquid may flow from the gap into the inside of the electrosurgical pen, causing insulation failure. At the same time, the entry of blood and water may also cause a short circuit on the circuit board, causing unexpected conduction, and then causing harm to the operator or patient.

[0003] Preventing the entry of liquids such as blood through effective structural design, ensuring the effectiveness of insulation and preventing short circuits in circuit boards are the keys to ensuring the normal operation of the electrosurgical pen. Therefore, there is an urgent need for a surgical electrosurgical pen with a button waterproof structure. Utility Model Content

[0004] The utility model aims to provide a surgical electrosurgical pen with a button waterproof structure to solve the problems raised in the above background technology.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A surgical electrosurgical pen with a button waterproof structure comprises a handle, a button is installed on the upper surface of the handle, a silicone pad is arranged below the button, and the bottom of the silicone pad is attached to a circuit board, a protruding cylindrical structure is arranged on the upper surface of the silicone pad, and the outer surface of the cylindrical structure is in interference contact with the inner wall of a concave hole at the button hole position of the handle to form a sealing structure.

[0007] Preferably, an electrode is provided at the front end of the handle, a contact spring is connected to the front end of the circuit board, the contact spring is connected to the outer surface of the electrode, the rear end of the electrode is inserted into the handle, the rear end of the circuit board is connected to a three-plug knife pen line, and the bottom outer wall of the handle is connected to the three-plug knife pen line through an insulating wire sleeve.

[0008] Preferably, the lower surface of the button is in contact with a silicone pad, and below the silicone pad is a touch spring on the circuit board.

[0009] Preferably, the silicone pad completely covers the touch spring on the circuit board below the silicone pad, and the touch spring is not exposed.

[0010] Preferably, the silicone pad is made of elastic material, which deforms when subjected to downward pressure and returns to its original state when the pressure is released.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0012] In the utility model, when liquid enters the button hole through the gap at the button position, the liquid is blocked by the sealing structure formed by the silicone pad and the inner wall of the concave hole at the button hole position of the handle, and the liquid cannot further enter the inner cavity of the handle. This can effectively prevent liquid from flowing into the inside of the electrosurgical pen through the button gap during surgery, thereby eliminating the problems of circuit board liquid ingress failure and shell insulation failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of the utility model;

[0014] Figure 2 It is the front view of the utility model;

[0015] Figure 3 It is an enlarged view of the structure at A of the utility model;

[0016] In the figure: 1. Electrode; 2. Silicone pad; 3. Button; 4. Circuit board; 5. Handle; 6. Knife-pen line. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] Example:

[0019] A surgical electrosurgical pen with a button waterproof structure, such as Figure 1-3 As shown, it includes a handle 5, a button 3 is installed on the upper surface of the handle 5, a silicone pad 2 is provided under the button 3, and the bottom of the silicone pad 2 is attached to the circuit board 4, and a protruding cylindrical structure is provided on the upper surface of the silicone pad 2. The outer surface of the cylindrical structure is in interference contact with the inner wall of the concave hole at the button hole position of the handle 5 to form a sealing structure, and the liquid entering from the button hole position cannot flow into the inner cavity of the handle.

[0020] In a possible embodiment, an electrode 1 is provided at the front end of the handle 5, a contact spring is connected to the front end of the circuit board 4, the contact spring is connected to the outer surface of the electrode 1, the rear end of the electrode 1 is inserted into the handle 5, the rear end of the circuit board 4 is connected to a three-insert knife pen line 6, and the bottom outer wall of the handle 5 is connected to the three-insert knife pen line 6 through an insulating wire sleeve.

[0021] In a possible implementation, the lower surface of the button 3 is in contact with the silicone pad 2, and below the silicone pad is a touch spring on the circuit board 4, and the button is not in direct contact with the circuit board.

[0022] In a possible implementation manner, the silicone pad 2 completely covers the touch spring on the circuit board 4 below the silicone pad 2 , and the touch spring is not exposed.

[0023] In a possible implementation, the silicone pad 2 is made of elastic material, which deforms when subjected to downward pressure and returns to its original state when the pressure is released.

[0024] In a possible embodiment, there is a protruding cylindrical structure on the upper surface of the silicone pad 2), and the outer surface of the cylinder is in close contact with the inner wall of the concave hole at the button hole position of the handle 5, forming a sealing structure. The liquid entering from the button hole position cannot flow into the inner cavity of the handle, thereby achieving effective isolation between the button opening and the interior.

[0025] In a possible implementation, when the button 3 is pressed down during operation, it first contacts the silicone pad 2, which is a soft elastic material and deforms under the downward pressure. Then, further downward pressure causes the touch spring of the circuit board 4 to deform, thereby turning on the working circuit on the circuit board, thereby realizing the coagulation or cutting function of the electric knife pen.

[0026] In a possible implementation, when the button 3 stops being pressed, the silicone pad 2 returns to its original state due to its own elastic characteristics, and the touch spring on the circuit board 4 also returns to its original state due to the release of pressure, thereby disconnecting the working circuit on the circuit board, thereby stopping the electric surgical pen.

[0027] By adopting the above technical means:

[0028] When the liquid enters the button hole through the gap at the button position, the liquid is blocked by the sealed structure formed by the silicone pad and the inner wall of the concave hole at the button hole position of the handle, and the liquid cannot enter the inner cavity of the handle further, thereby preventing the insulation failure of the handle. At the same time, it also prevents the liquid from entering the circuit board in the inner cavity, causing a short circuit, thereby mistakenly triggering the coagulation or cutting function of the electrosurgical pen, causing harm to the operator of the electrosurgical pen or the patient during surgery. The safety performance of the electrosurgical pen is greatly guaranteed.

[0029] The key point in the button waterproof structure is the use of silicone pads. The characteristics of the silicone material make it soft and elastic, and it can form a close contact with the inner wall of the concave hole at the button hole position of the handle to form a sealing structure. At the same time, when the button is pressed, it can deform and transmit the pressure to the touch spring of the circuit board, thereby turning on the working circuit on the circuit board and the electrosurgical pen starts to work. When the button is released, the silicone pad returns to its original shape due to its elasticity, relieving the pressure on the touch spring, disconnecting the working circuit on the circuit board, and stopping the electrosurgical pen. Therefore, while the silicone pad itself plays a waterproof role, it does not affect the normal use function of the electrosurgical pen.

[0030] By placing a silicone pad under the button, it can effectively prevent liquid from flowing into the electrosurgical pen through the button gap during the operation, thereby eliminating the problems of circuit board failure due to liquid ingress and shell insulation failure.

[0031] The surgical electrosurgical pen is powered during operation, and the effectiveness and reliability of insulation safety are very important for the operator during the operation. Because the button is a movable part with a matching gap, there may be blood or other liquids on the operator's hand during the operation. When pressing the button, the liquid may flow into the electrosurgical pen from the gap, causing insulation failure.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A surgical electrosurgical pen with a button waterproof structure, characterized in that: The invention comprises a handle (5), wherein a button (3) is installed on the upper surface of the handle (5), a silicone pad (2) is arranged below the button (3), and the bottom of the silicone pad (2) is attached to a circuit board (4), and a protruding cylindrical structure is arranged on the upper surface of the silicone pad (2), and the outer surface of the cylindrical structure is in interference contact with the inner wall of a concave hole at the position of the button hole of the handle (5), so as to form a sealing structure.

2. The surgical electrosurgical pen with a button waterproof structure according to claim 1, characterized in that: The front end of the handle (5) is provided with an electrode (1), the front end of the circuit board (4) is connected with a contact spring, the contact spring is connected to the outer surface of the electrode (1), the rear end of the electrode (1) is inserted into the handle (5), the rear end of the circuit board (4) is connected with a three-insert pen line (6), and the bottom outer wall of the handle (5) is connected to the three-insert pen line (6) through an insulating wire sleeve.

3. The surgical electrosurgical pen with a button waterproof structure according to claim 1, characterized in that: The lower surface of the button (3) is in contact with the silicone pad (2), and below the silicone pad is a light touch spring on the circuit board (4).

4. The surgical electrosurgical pen with a button waterproof structure according to claim 1, characterized in that: The silicone pad (2) completely covers the light touch spring on the circuit board (4) below it, and the light touch spring is not exposed.

5. The surgical electrosurgical pen with a button waterproof structure according to claim 1, characterized in that: The silica gel pad (2) is made of elastic material, which deforms when subjected to downward pressure and returns to its original state when the pressure is released.

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