Electrical safety test tool for plasma operation electrode

Abstract

An electrical safety test tool for a plasma operation electrode relates to the technical field of medical instruments and comprises a terminal block, a protective cover is hinged to one end of the terminal block, a permeable cloth soaking tank is fixed to the other end of the terminal block, and a metal foil fixing device and an electrode handle fixing device are respectively mounted on the upper surface of the terminal block. According to the electrical safety testing tool for the plasma operation electrode, the tested disposable plasma operation electrode is isolated from a tester in the testing process, the safety risk in the testing process is greatly reduced, the electrode handle is conveniently and visually wrapped, and the testing efficiency is improved. And after the test is completed, if the metal foil is still intact, the metal foil can be folded for subsequent reuse, so that the full wetting of the water-permeable cloth can be ensured, the safety risk caused by water spots left or splashed when the water-permeable cloth is wetted on the test workbench is avoided, and the efficiency is higher than that of wetting the water-permeable cloth at other suitable places.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an electrical safety testing fixture for a plasma surgical electrode. Background Technology

[0002] Disposable plasma surgical electrodes, also known as disposable plasma cutters, are used clinically for tissue cutting and electrocoagulation hemostasis. Due to their superior performance, they are widely used in various medical institutions, and their application is increasingly broad, leading to rapid market demand growth. They generally consist of a blade head (blade-shaped electrode), insulating sleeve, plastic handle, hand-operated push-button switch, cable, plug, and blade head protective sleeve, and must be used in conjunction with a high-frequency generator and a neutral negative plate. As they are high-frequency surgical accessories, their production must meet the requirements of the GB9706.202-2021 standard.

[0003] Currently, most manufacturers of high-frequency surgical electrode consumables test the high-frequency dielectric strength and power-frequency dielectric strength of disposable plasma surgical electrode handles by placing the relevant testing instruments and the disposable plasma surgical electrode handle under test on an insulated testing table and operating it with insulated gloves. During the test, the disposable plasma surgical electrode under test is directly exposed to the tester. Because a high-frequency, high-voltage current passes through the disposable plasma surgical electrode during this process, the tester not only needs to be extremely careful during operation but also needs to guard against unauthorized personnel from suddenly entering the testing area. Therefore, this method poses a significant safety risk, requiring testers to devote considerable attention to safety precautions during the testing operation. This hinders the tester's observation of the testing process and may result in problems not being detected in a timely manner, thus reducing the efficiency of the testing work.

[0004] Therefore, there is an urgent need for an electrical safety testing fixture for plasma surgical electrodes to solve the above problems. Utility Model Content

[0005] The technical problem this invention aims to solve is to overcome existing defects and provide an electrical safety testing fixture for plasma surgical electrodes. This fixture isolates the disposable plasma surgical electrode being tested from the tester during the testing process, greatly reducing safety risks. It allows for easy and intuitive covering of the electrode handle, and if the metal foil is still intact after the test, it can be collected for later reuse. It ensures that the permeable cloth is fully moistened, while avoiding the safety risks caused by water stains or splashes when wetting the permeable cloth on the test workbench. Moreover, it is more efficient than wetting the permeable cloth in other suitable places, and can effectively solve the problems in the background art.

[0006] To achieve the aforementioned objective, this utility model adopts the following technical solution:

[0007] An electrical safety testing fixture for a plasma surgical electrode includes a terminal block, one end of which is hinged to a protective cover, and the other end of which is fixed to a water-permeable cloth soaking tank. A metal foil fixing device and an electrode handle fixing device are respectively installed on the upper surface of the terminal block.

[0008] Furthermore, the metal foil fixing device includes a metal foil roller and a metal foil pressing spring, both of which are mounted on the upper surface of the terminal block.

[0009] Furthermore, the terminal block consists of two parts: an electrode plug shorting terminal block and a test equipment clamp connecting terminal block. Both the electrode plug shorting terminal block and the test equipment clamp connecting terminal block are installed on the upper surface of the terminal block base plate. The test equipment clamp connecting terminal block is connected to the fixed side of the metal foil pressing spring through a wire.

[0010] Furthermore, the permeable fabric soaking tank includes a permeable fabric soaking tank body and a permeable fabric soaking tank cover. The permeable fabric soaking tank body is fixed to the end of the terminal block, and the permeable fabric soaking tank cover is fastened to the opening of the permeable fabric soaking tank body.

[0011] Furthermore, the permeable fabric soaking tank also includes a permeable fabric rolling shaft, a lower support for the rolling shaft, and an upper fixing member for the rolling shaft. Two lower supports for the rolling shaft are provided and symmetrically fixed on the inner side of the permeable fabric soaking tank body. The end of the permeable fabric rolling shaft is placed on the lower support for the rolling shaft. The upper fixing member for the rolling shaft is fixed to the bottom of the permeable fabric soaking tank cover and is set in a one-to-one correspondence with the lower support for the rolling shaft. The upper fixing member for the rolling shaft is fastened to the end side of the permeable fabric rolling shaft.

[0012] Furthermore, the permeable fabric soaking tank also includes a permeable fabric outlet, a permeable fabric cutting knife, and a permeable fabric cutting knife guide rail. The permeable fabric outlet is opened on the cover of the permeable fabric soaking tank, and the permeable fabric cutting knife guide rail is fixed above the cover of the permeable fabric soaking tank. The knife holder of the permeable fabric cutting knife is slidably connected to the permeable fabric cutting knife guide rail.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This electrical safety testing fixture for plasma surgical electrodes has the following advantages:

[0014] 1. By adding a protective cover and terminal block, the disposable plasma surgical electrode under test is isolated from the test personnel during the test, which greatly reduces the safety risks during the test.

[0015] 2. By setting up a water-permeable cloth soaking tank, testers only need to pull the water-permeable cloth out of the soaking tank and cut it when they need to use it. This ensures that the water-permeable cloth is fully wetted and avoids the safety risks caused by water stains left or splashed when wetting the water-permeable cloth on the test workbench. It is also more efficient than wetting the water-permeable cloth in other suitable places.

[0016] 3. By setting up a metal foil fixing device and an electrode handle fixing device, it is easy to intuitively cover the electrode handle, and if the metal foil is still intact after the test, it can be put away for subsequent reuse.

[0017] 4. It has a low cost and good practicality. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial structural diagram of the permeable fabric soaking tank of this utility model;

[0020] Figure 3 This is a partial structural diagram of the electrode handle fixing device of this utility model;

[0021] Figure 4 This is a top view of the structure of this utility model.

[0022] Figure 5 This is a partial structural diagram of the terminal block of this utility model.

[0023] Figure 6 for Figure 1 A magnified structural diagram at point a.

[0024] In the diagram: A - Protective cover, B - Metal foil fixing device, B1 - Metal foil roller, B2 - Metal foil pressing spring, C - Electrode handle fixing device, D - Terminal block, D1 - Electrode plug shorting terminal block, D2 - Test equipment clamp connection terminal block, E - Permeable cloth soaking tank, E1 - Permeable cloth soaking tank body, E2 - Permeable cloth rolling shaft, E3 - Rolling shaft lower support, E4 - Rolling shaft upper fixing part, E5 - Permeable cloth outlet, E6 - Permeable cloth cutting knife, E7 - Permeable cloth cutting knife guide rail, E8 - Permeable cloth soaking tank cover. Detailed Implementation

[0025] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0026] Please see Figure 1-6This embodiment provides a technical solution: an electrical safety testing fixture for a plasma surgical electrode, including a terminal block D, a protective cover A hinged to one end of the terminal block D, a water-permeable cloth soaking tank E fixed to the other end of the terminal block D, and a metal foil fixing device B and an electrode handle fixing device C respectively installed on the upper surface of the terminal block D.

[0027] The metal foil fixing device B includes a metal foil roller B1 and a metal foil pressing spring B2, both of which are mounted on the upper surface of the terminal block D.

[0028] Terminal block D consists of two parts: electrode plug shorting terminal block D1 and test equipment clamp connecting terminal block D2. Both terminal block D1 and terminal block D2 are mounted on the upper surface of the base plate of terminal block D. Terminal block D2 is connected to the fixing side of the metal foil pressing spring B2 via a wire. After covering the handle of the disposable plasma surgical electrode to be tested with a water-permeable cloth, open the protective cover A, and then place the covered disposable plasma surgical electrode into the electrode handle fixing device C to confirm whether the length of the water-permeable cloth covering meets the requirements of GB9706.202-2021 standard, as follows. Figure 3 As shown, Figure 3 In the figure, L1 is the length of the disposable plasma surgical electrode handle to be tested, L3 is the distance from the handle tip side to the slot of the electrode handle fixing device C, which should be no less than 5mm, and L2 is the distance from the handle tail to the other slot of the electrode handle fixing device C, which should be no less than 150mm. After the disposable plasma surgical electrode covered with water-permeable cloth is placed in the electrode handle fixing device C, if water-permeable cloth protrudes from both slots, it means that the length of the covered water-permeable cloth meets the requirements of GB9706.202-2021 standard.

[0029] After confirming the length of the permeable fabric, remove the wrapped disposable plasma surgical electrode handle from the electrode handle fixing device C, and begin wrapping it with metal foil, as follows: Figure 4 As shown, the length L5 of the metal foil roller B1 is not less than L1+L2+L3. Before the test, the rolled metal foil is put on it, and the width of the metal foil is not less than L1+L2+L3. After taking out the end of the rolled metal foil and taking out a sufficient length under the metal foil pressing spring B2, the electrode handle that has been covered with water-permeable cloth is wrapped with metal foil. Note that the water-permeable cloth should be completely covered by the metal foil. Then, fix the electrode handle covered with metal foil to the electrode handle fixing device C. The preparation work before the test is completed.

[0030] as follows Figure 5 As shown, terminal block D is the terminal block part of this test fixture. A partial view of terminal block D1 with the electrode plug shorted is shown below. Figure 6As shown, after inserting the electrode plug, short-circuit it inside the electrode plug short-circuiting terminal block D1. Then, lead a wire to the test equipment clamp connection terminal block D2. Finally, cover with the protective cover A, and clamp the two pole clamps from the high-frequency or power frequency tester to the terminals led out from the test equipment clamp connection terminal block D2 to the terminals outside the protective cover A. The tester can then be started to perform the corresponding test. By adding the protective cover A and terminal block D, the disposable plasma surgical electrode under test is isolated from the tester during the test, greatly reducing the safety risks during the test. By setting the metal foil fixing device B and the electrode handle fixing device C, it is easy to intuitively cover the electrode handle. After the test, if the metal foil is still intact, it can be put away for subsequent reuse. Its overall cost is low and its practicality is good.

[0031] The permeable fabric soaking tank E includes a tank body E1 and a cover E8. The tank body E1 is fixed to the end of the terminal block D. The cover E8 is fastened to the opening of the tank body E1. The permeable fabric soaking tank E also includes a permeable fabric rolling shaft E2, a lower support E3, and an upper fixing member E4. Two lower supports E3 are symmetrically fixed to the inner side of the tank body E1. The end of the permeable fabric rolling shaft E2 rests on the lower support E3. The upper fixing member E4 is fixed to the bottom of the cover E8 and corresponds one-to-one with the lower support E3. The upper fixing member E4 is fastened to the permeable fabric rolling shaft E2. On the end side of 2, the permeable fabric soaking tank E also includes a permeable fabric outlet E5, a permeable fabric cutting blade E6, and a permeable fabric cutting blade guide rail E7. The permeable fabric outlet E5 is opened on the permeable fabric soaking tank cover E8, and the permeable fabric cutting blade guide rail E7 is fixed above the permeable fabric soaking tank cover E8. The blade holder of the permeable fabric cutting blade E6 is slidably connected to the permeable fabric cutting blade guide rail E7. Before performing high-frequency dielectric strength and power-frequency dielectric strength tests on the disposable plasma surgical electrode handle, the protective cover A is in the covered state. Before lifting it, according to the requirements of GB9706.202-2021 standard, take out an appropriate length of permeable fabric from the permeable fabric soaking tank E to cover the disposable plasma surgical electrode handle to be tested, as follows. Figure 2As shown, a roll of permeable fabric can be fitted onto the permeable fabric roller E2. When the permeable fabric soaking tank cover E8 is closed, the lower supports E3 on both sides of the roller and the fixing parts E4 on the roller respectively fit together, confining the permeable fabric roller E2 within it. Before testing, remove the permeable fabric roller E2, pour sufficient 0.9% salt solution into the permeable fabric soaking tank body E1, then fit a roll of permeable fabric onto the permeable fabric roller E2, and then place the permeable fabric roller E2 into the groove position of the lower support E3 of the roller in the permeable fabric soaking tank body E1, and then remove the roll. The permeable fabric end extends out from the permeable fabric outlet E5, and the permeable fabric soaking tank cover E8 is closed. After the permeable fabric is taken out to a sufficient length, the permeable fabric cutting knife E6 slides along the permeable fabric cutting knife guide rail E7 to cut the permeable fabric. By setting up the permeable fabric soaking tank E, when the tester needs to use the permeable fabric, he / she only needs to pull it out of the soaking tank and cut it. This ensures that the permeable fabric is fully wetted and avoids the safety risks caused by water stains left or splashed when wetting the permeable fabric on the test workbench. It is also more efficient than wetting the permeable fabric in other suitable places.

[0032] The working principle of the electrical safety testing fixture for a plasma surgical electrode provided by this utility model is as follows: Before performing high-frequency dielectric strength and power-frequency dielectric strength tests on the disposable plasma surgical electrode handle, the protective cover A is in the down position. Before lifting it, according to the requirements of GB9706.202-2021 standard, an appropriate length of permeable cloth is taken from the permeable cloth soaking tank E and wrapped around the disposable plasma surgical electrode handle to be tested, as follows. Figure 2 As shown, a roll of permeable fabric can be fitted onto the permeable fabric roller E2. When the permeable fabric soaking tank cover E8 is closed, the lower supports E3 on the left and right sides of the roller and the fixing parts E4 on the roller respectively match and restrict the permeable fabric roller E2. Before the test, take out the permeable fabric roller E2, pour a sufficient amount of 0.9% salt solution into the permeable fabric soaking tank body E1, then put a roll of permeable fabric onto the permeable fabric roller E2, and then place the permeable fabric roller E2 into the groove position of the lower support E3 of the roller in the permeable fabric soaking tank body E1. Take out the end of the roll of permeable fabric and pass it out from the permeable fabric take-out outlet E5. Cover the permeable fabric soaking tank cover E8. After the permeable fabric is taken out to a sufficient length, the permeable fabric cutting knife E6 knife holder slides along the permeable fabric cutting knife guide rail E7 to cut the permeable fabric.

[0033] After covering the handle of the disposable plasma surgical electrode to be tested with a water-permeable cloth, open the protective cover A, and then place the covered disposable plasma surgical electrode into the electrode handle fixing device C to confirm whether the length of the water-permeable cloth covering meets the requirements of GB9706.202-2021 standard, as follows. Figure 3 As shown, Figure 3In the figure, L1 is the length of the disposable plasma surgical electrode handle to be tested, L3 is the distance from the handle tip side to the slot of the electrode handle fixing device C, which should be no less than 5mm, and L2 is the distance from the handle tail to the other slot of the electrode handle fixing device C, which should be no less than 150mm. After the disposable plasma surgical electrode covered with water-permeable cloth is placed in the electrode handle fixing device C, if water-permeable cloth protrudes from both slots, it means that the length of the covered water-permeable cloth meets the requirements of GB9706.202-2021 standard.

[0034] After confirming the length of the permeable fabric, remove the wrapped disposable plasma surgical electrode handle from the electrode handle fixing device C, and begin wrapping it with metal foil, as follows: Figure 4 As shown, the length L5 of the metal foil roller B1 is not less than L1+L2+L3. Before the test, the rolled metal foil is put on it, and the width of the metal foil is not less than L1+L2+L3. After taking out the end of the rolled metal foil and taking out a sufficient length under the metal foil pressing spring B2, the electrode handle that has been covered with water-permeable cloth is wrapped with metal foil. Note that the water-permeable cloth should be completely covered by the metal foil. Then, fix the electrode handle covered with metal foil to the electrode handle fixing device C. The preparation work before the test is completed.

[0035] as follows Figure 5 As shown, terminal block D is the terminal block part of this test fixture. A partial view of terminal block D1 with the electrode plug shorted is shown below. Figure 6 As shown, after inserting the electrode plug, short-circuit it inside the electrode plug short-circuiting terminal block D1. Then, lead out a wire to the test equipment clamp connection terminal block D2. Finally, cover with the protective cover A, and clamp the two pole clamps from the high-frequency or power frequency tester to the terminals led out from the test equipment clamp connection terminal block D2 to the terminals outside the protective cover A. Then, start the tester to perform the corresponding test.

[0036] It is worth noting that the components disclosed in the above embodiments are all general standard parts or parts known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. For example, a rotary connection can refer to a rotary connection through a bearing.

[0038] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.

Claims

1. An electrical safety testing fixture for a plasma surgical electrode, comprising a terminal block (D), characterized in that: One end of the terminal block (D) is hinged to a protective cover (A), and the other end of the terminal block (D) is fixed with a water-permeable cloth soaking tank (E). The upper surface of the terminal block (D) is respectively equipped with a metal foil fixing device (B) and an electrode handle fixing device (C).

2. The electrical safety testing fixture for a plasma surgical electrode according to claim 1, characterized in that: The metal foil fixing device (B) includes a metal foil roller (B1) and a metal foil pressing spring (B2), both of which are mounted on the upper surface of the terminal block (D).

3. The electrical safety testing fixture for a plasma surgical electrode according to claim 1 or 2, characterized in that: The terminal block (D) consists of two parts: an electrode plug shorting terminal block (D1) and a test equipment clamp connecting terminal block (D2). Both the electrode plug shorting terminal block (D1) and the test equipment clamp connecting terminal block (D2) are mounted on the upper surface of the base plate of the terminal block (D). The test equipment clamp connecting terminal block (D2) is connected to the fixed side of the metal foil pressing spring (B2) through a wire.

4. The electrical safety testing fixture for a plasma surgical electrode according to claim 1, characterized in that: The permeable fabric soaking tank (E) includes a permeable fabric soaking tank body (E1) and a permeable fabric soaking tank cover (E8). The permeable fabric soaking tank body (E1) is fixed to the end of the terminal block (D), and the permeable fabric soaking tank cover (E8) is fastened to the opening of the permeable fabric soaking tank body (E1).

5. The electrical safety testing fixture for a plasma surgical electrode according to claim 4, characterized in that: The permeable fabric soaking tank (E) also includes a permeable fabric rolling shaft (E2), a lower support for the rolling shaft (E3), and an upper fixing member (E4) for the rolling shaft. Two lower supports (E3) are provided and symmetrically fixed on the inner side of the permeable fabric soaking tank body (E1). The end of the permeable fabric rolling shaft (E2) is placed on the lower support for the rolling shaft (E3). The upper fixing member (E4) for the rolling shaft is fixed to the bottom of the permeable fabric soaking tank cover (E8) and is set in a one-to-one correspondence with the lower support for the rolling shaft (E3). The upper fixing member (E4) for the rolling shaft is fastened to the end side of the permeable fabric rolling shaft (E2).

6. The electrical safety testing fixture for a plasma surgical electrode according to claim 4, characterized in that: The permeable fabric soaking tank (E) also includes a permeable fabric outlet (E5), a permeable fabric cutter (E6), and a permeable fabric cutter guide rail (E7). The permeable fabric outlet (E5) is opened on the permeable fabric soaking tank cover (E8). The permeable fabric cutter guide rail (E7) is fixed above the permeable fabric soaking tank cover (E8). The cutter holder of the permeable fabric cutter (E6) is slidably connected to the permeable fabric cutter guide rail (E7).

Images