High-frequency clearer and system

Abstract

The invention belongs to the field of medical equipment, and particularly relates to a high-frequency remover and system.The high-frequency remover is composed of an electric snare and an electrode slice, and the electrode slice is of a sheet-shaped structure, is made of a conductive material and comprises a working face and a connecting face; the electric snare comprises an electric coil, an outer sheath tube, an inhaul cable and a conductive electrode, the electric coil is arranged at the front end of the inhaul cable, the inhaul cable is electrically connected with the conductive electrode, the inhaul cable can axially slide along the outer sheath tube to control the electric coil to enter and exit from the outer sheath tube, the front end of the electric coil is detachably arranged on the connecting face of the electrode plate, and high-frequency and high-voltage current is introduced through the conductive electrode. Therefore, the electrode plate generates high temperature, and the working surface of the electrode plate can be used for efficiently cleaning diseases. Efficient disease cleaning can be achieved by directly combining an existing electric snare with the electrode slice with a simple structure, the manufacturing cost is low, the economic pressure of a patient is relieved, and the electric snare can be used in cooperation with an endoscope to achieve accurate disease cleaning.

Description

Technical Field

[0001] The present invention belongs to the field of medical devices, and particularly relates to a high-frequency eliminator and a system. Background Art

[0002] During the early cancer screening process, when using an endoscope for gastrointestinal tract examination, if early cancer symptoms are found, a high-frequency device is usually used to treat the lesion with high temperature.

[0003] The currently commonly used treatment plan is to use a disposable hot biopsy forceps in combination with a high-frequency electrotome. For example, a hot biopsy forceps with a clip function disclosed in Chinese Patent Document CN222172168U (202420368633.7) is connected to a high-frequency device through an electrode connector, and the lesion can be treated using the forceps head. However, since the contact area between the biopsy forceps and the lesion is small, the treatment efficiency is low.

[0004] In addition, radiofrequency ablation is also used to treat early cancer conditions. However, since the procurement cost of radiofrequency ablation equipment and consumables is high, the treatment cost of patients is increased. Summary of the Invention

[0005] The main object of the present invention is to provide a high-frequency eliminator and a system. By designing an electrode plate and detachably arranging the front end of the electric coil on the connection surface of the electrode plate, the electric coil can be used to conductively heat the electrode plate, and the working surface of the electrode plate can be used to efficiently clean the lesion. The overall structure is simple, the cost is low, and it can be used in cooperation with an endoscope to accurately clean the lesion, effectively improving the efficiency and success rate of the operation.

[0006] The technical problem to be solved by the present invention is achieved by the following technical solutions: A high-frequency eliminator includes an electric coil snare and an electrode plate;

[0007] The electrode plate is a sheet structure, the electrode plate is made of a conductive material, and the electrode plate includes a working surface and a connection surface;

[0008] The electric coil snare includes an electric coil, an outer sheath tube, a cable, and a conductive electrode. The electric coil is arranged at the front end of the cable, the cable is electrically connected to the conductive electrode, and the cable can slide axially along the outer sheath tube to control the electric coil to enter and exit the outer sheath tube;

[0009] The front end of the electric coil is detachably arranged on the connection surface.

[0010] Preferably, the electrode plate further includes a limiting ring and a hanging portion arranged on the connection surface;

[0011] The electric coil is hung on the hanging part through the limiting ring. Since the electric coil device needs to be installed after being matched with the endoscope when the electrode plate is in use, and the electric coil device can only be removed from the endoscope after the electrode plate is disassembled after use, by setting the limiting ring and the hanging part on the connection surface and hanging the electric coil through the limiting ring on the hanging part, the quick connection between the electrode plate and the electric coil can be realized, which is convenient for operation and disassembly, improves the surgical operation efficiency, and does not require modification of the existing electric coil device; moreover, the electrode plate has a simple structure and low manufacturing cost, and can efficiently treat early-stage cancer diseases with a simple structure.

[0012] Preferably, the hanging part includes a hanging shaft vertically arranged on the electrode plate and a limiting head arranged at the upper end of the hanging shaft;

[0013] The outer diameter of the limiting head is larger than the diameter of the hanging shaft. After the electric coil passes through the limiting ring, the limiting ring restricts the outward expansion of the front end of the electric coil, and the front end of the electric coil is sleeved on the hanging shaft. The front end of the electric coil can be firmly clamped outside the hanging shaft, and the limiting head with an outer diameter larger than the diameter of the hanging shaft is used to prevent the front end of the electric coil from slipping off the hanging shaft, ensuring safety during the operation.

[0014] Preferably, the hanging part includes an L-shaped hook, and the hook bends towards the side opposite to the position where the limiting ring is located. Since the hook bends towards the side opposite to the position where the limiting ring is located, hanging the front end of the electric coil on the L-shaped hook can effectively prevent the electric coil from falling off the hanging part.

[0015] Preferably, it further includes a limiting sleeve, and the limiting sleeve includes a stud sleeve with a tightening hole provided in the middle;

[0016] The electric coil passes through the tightening hole, and the stud sleeve is threadedly connected with the limiting ring. For greater safety, a stud sleeve can be sleeved outside the electric coil, the stud sleeve is threadedly connected with the limiting ring, and the tightening hole is used to further restrict the movement of the front end of the electric coil, making the connection between the electric coil and the electrode plate more firm.

[0017] Preferably, the electrode plate is a curved panel, and the connection surface is located on the concave side of the curved panel;

[0018] The corners of the electrode plate are rounded. Since the electrode plate is a curved panel and the connection surface is located on the concave side of the curved panel, therefore, the electric coil can be arranged on the concave side of the electrode plate to protect the internal tissues of the human body and at the same time is beneficial for the working surface to clean the disease; in addition, the corners of the electrode plate are rounded to avoid damage to the internal tissues of the human body caused by the side wall of the electrode plate.

[0019] Preferably, the electric coil device further includes a core rod and a slip ring;

[0020] The slip ring is arranged on the outer side of the core rod so as to be axially slidable along the core rod, and the conductive electrode is fixedly arranged on the slip ring and connected to the cable;

[0021] The outer sheath tube is rotatably arranged on the core rod. The slip ring can slide axially along the core rod, so that the electric coil can be controlled to enter and exit the outer sheath tube, facilitating the installation of the front end of the electric coil on the electrode plate; and the conductive electrode is fixedly arranged on the slip ring and the outer sheath tube is rotatably arranged on the core rod. By rotating the slip ring and the core rod integrally, the cable can be driven to rotate relative to the outer sheath tube, thereby adjusting the angle of the electrode plate to clean diseases at different angles inside the human body.

[0022] Preferably, in the present invention, both the electric snare and the electrode plate are disposable items. Since the cost of the electrode plate is low, the electrode plate can be used as a disposable item, and in order to avoid cross-infection, the electric snare is also set as a disposable item. The disposable items are aseptically assembled in the operating room, further improving the safety of the operation.

[0023] The present invention also discloses a high-frequency removal system, which uses the above-mentioned high-frequency remover and includes a high-frequency generating device and an endoscope;

[0024] The endoscope includes a working channel;

[0025] The conductive electrode is connected to the high-frequency generating device;

[0026] The size of the electrode plate is larger than the inner diameter of the working channel. The outer sheath tube is arranged in the working channel, and the electrode plate is arranged outside the endoscope. In order to improve the removal efficiency of early cancer diseases, the size of the electrode plate is larger than the inner diameter of the corresponding working channel of the endoscope. Therefore, after the outer sheath tube passes through the working channel, the electric coil needs to be connected to the electrode plate; the conductive electrode is connected to the high-frequency generating device, so that the electrode plate generates high temperature, and the position of the disease is confirmed through the endoscope, thereby realizing the precise removal of early cancer diseases by using the electrode plate.

[0027] Preferably, in the present invention, the high-frequency generating device is a high-frequency electrotome host. Directly using the existing high-frequency electrotome host as the high-frequency generating device helps to save the investment in equipment costs.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention uses an electric snare and an electrode plate to form a high-frequency remover. The electrode plate is a sheet structure, the electrode plate is a conductive material, and the electrode plate includes a working surface and a connecting surface; and the electric snare includes an electric coil, an outer sheath tube, a cable and a conductive electrode. The electric coil is arranged at the front end of the cable, the cable is electrically connected to the conductive electrode, and the cable can slide axially along the outer sheath tube to control the electric coil to enter and exit the outer sheath tube. The front end of the electric coil is detachably arranged on the connecting surface of the electrode plate. By passing a high-frequency high-voltage current through the conductive electrode, the electrode plate generates high temperature, and the working surface of the electrode plate can be used to efficiently clean the disease.

[0029] The present invention ingeniously uses the electric loop of the existing electric snare directly as a connecting component, combines it with an electrode sheet with a simple structure to achieve efficient cleaning of diseases, has a low manufacturing cost, reduces the economic pressure on patients, and can be used in cooperation with an endoscope to achieve precise cleaning of diseases. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic structural diagram of the high-frequency eliminator according to Embodiment 1 of the present invention;

[0031] Figure 2 It is a schematic structural diagram of the electrode sheet according to the embodiment of the present invention;

[0032] Figure 3 It is a schematic connection structure diagram of the electrode sheet and the limit sleeve;

[0033] Figure 4 It is a schematic structural diagram of the electrode sheet according to Embodiment 2 of the present invention;

[0034] Figure 5 It is a schematic structural diagram of the high-frequency elimination system according to the embodiment of the present invention

[0035] In the figure, 1 is an electric snare, 2 is an electrode sheet, 21 is a working surface, and 22 is a connecting surface;

[0036] 11 is an electric loop, 12 is an outer sheath tube, 13 is a cable, 14 is a conductive electrode, 15 is a core rod, and 16 is a slip ring;

[0037] 23 is a limit ring, 24 is a hanging part, 241 is a hanging shaft, 242 is a limit head, and 243 is a hook;

[0038] 3 is a limit sleeve, 31 is a stud sleeve, and 32 is a tightening hole;

[0039] 100 is a high-frequency generating device, 200 is an endoscope, and 201 is a working channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings.

[0041] Embodiment 1

[0042] As Figures 1-3 shown, a high-frequency eliminator includes an electric snare 1 and an electrode sheet 2.

[0043] The electrode sheet 2 is a sheet structure, the electrode sheet 2 is made of a conductive material, specifically cast by using a steel material with a mold, and the electrode sheet 2 includes a working surface 21 and a connecting surface 22.

[0044] The electric snare 1 includes an electric loop 11, an outer sheath 12, a cable 13, and a conductive electrode 14. The electric loop 11 is arranged at the front end of the cable 13. The cable 13 is electrically connected to the conductive electrode 14. The cable 13 can slide axially along the outer sheath 12 to control the electric loop 11 to enter and exit the outer sheath 12.

[0045] The front end of the electric loop 11 is detachably arranged on the connection surface 22.

[0046] The electrode plate 2 further includes a limit ring 23 arranged on the connection surface 22 and a hanging part 24.

[0047] The electric loop 11 passes through the limit ring 23 and is hung on the hanging part 24.

[0048] The hanging part 24 includes a hanging shaft 241 vertically arranged on the electrode plate 2 and a limit head 242 arranged at the upper end of the hanging shaft 241.

[0049] The outer diameter of the limit head 242 is larger than the diameter of the hanging shaft 241. Specifically, the limit head 242 is cylindrical, and the edges of the upper and lower end faces are designed with rounded corners.

[0050] The high-frequency scavenger further includes a limit sleeve 3. The limit sleeve 3 includes a stud sleeve 31, and a tightening hole 32 is arranged in the middle of the stud sleeve 31.

[0051] The electric loop 11 passes through the tightening hole 32, and the stud sleeve 31 is threadedly connected to the limit ring 23. In addition, a flange surface is arranged at the end of the stud sleeve 31 to limit the position of the limit sleeve 3. The diameter of the tightening hole 32 matches the size of the electric loop 11 to achieve the purpose of tightening the electric loop 11. Correspondingly, the inner hole of the limit ring 23 can be set larger, so as to facilitate passing the electric loop 11 through the inner hole of the limit ring 23 and facilitate the connection between the electrode plate 2 and the electric loop 11.

[0052] The electrode plate 2 is a curved panel, and the connection surface 22 is located on the concave side of the curved panel.

[0053] The corners of the electrode plate 2 are provided with rounded corners.

[0054] The electric snare 1 further includes a core rod 15 and a slip ring 16.

[0055] The slip ring 16 is slidably arranged on the outside of the core rod 15 along the axial direction of the core rod 15. The conductive electrode 14 is fixedly arranged on the slip ring 16 and is connected to the cable 13.

[0056] The outer sheath 12 is rotatably arranged on the core rod 15.

[0057] In this embodiment, both the electric snare 1 and the electrode plate 2 are disposable items.

[0058] Such asFigure 5 As shown, a high-frequency cleaning system uses the above-mentioned high-frequency cleaner and includes a high-frequency generating device 100 and an endoscope 200.

[0059] The endoscope 200 includes a working channel 201.

[0060] The conductive electrode 14 is connected to the high-frequency generating device 100.

[0061] The size of the electrode plate 2 is larger than the inner diameter of the working channel 201. The outer sheath tube 12 is arranged in the working channel 201, and the electrode plate 2 is arranged outside the endoscope 200.

[0062] The high-frequency generating device 100 is a high-frequency electrotome host.

[0063] In the high-frequency cleaning system of this embodiment, during the early cancer screening process, when using an endoscope for digestive tract examination, if early cancer symptoms are found, the electrode plate can be used in cooperation with a disposable electric snare and a high-frequency electrotome to treat the lesion. The electrode plate, as a disposable consumable, has a low cost and can be quickly connected and disassembled with the existing electric snare, achieving efficient cleaning of the disease at extremely low cost.

[0064] Embodiment 2

[0065] As Figure 4 shown, the difference from Embodiment 1 is that the hanging part 24 includes an L-shaped hook 243, and the hook 243 bends towards the side opposite to the position where the limiting ring 23 is located.

Claims

1. A high-frequency eliminator, characterized in that: It includes an electric snare (1) and an electrode plate (2); The electrode plate (2) is a sheet structure, the electrode plate (2) is made of a conductive material, and the electrode plate (2) includes a working surface (21) and a connecting surface (22); The electric snare (1) includes an electric loop (11), an outer sheath tube (12), a cable (13) and a conductive electrode (14). The electric loop (11) is arranged at the front end of the cable (13), the cable (13) is electrically connected to the conductive electrode (14), and the cable (13) can slide axially along the outer sheath tube (12) to control the electric loop (11) to enter and exit the outer sheath tube (12); The front end of the electric loop (11) is detachably arranged on the connecting surface (22).

2. The high-frequency scavenger according to claim 1, characterized in that: The electrode plate (2) further includes a limiting ring (23) and a hanging part (24) arranged on the connecting surface (22); The electric loop (11) passes through the limiting ring (23) and is hung on the hanging part (24).

3. The high-frequency eliminator according to claim 2, wherein: The hanging part (24) includes a hanging shaft (241) vertically arranged on the electrode plate (2) and a limiting head (242) arranged at the upper end of the hanging shaft (241); The outer diameter of the limiting head (242) is larger than the diameter of the hanging shaft (241).

4. The high-frequency scavenger according to claim 2, characterized in that: The hanging part (24) includes an L-shaped hook (243), and the hook (243) bends towards the side opposite to the position where the limiting ring (23) is located.

5. The high-frequency scavenger according to claim 2, characterized in that: It further includes a limiting sleeve (3). The limiting sleeve (3) includes a stud sleeve (31), and a tightening hole (32) is arranged in the middle of the stud sleeve (31); The electric loop (11) passes through the tightening hole (32), and the stud sleeve (31) is threadedly connected to the limiting ring (23).

6. The high-frequency eliminator according to claim 1, characterized in that: The electrode plate (2) is a curved panel, and the connecting surface (22) is located on the concave side of the curved panel; The corners of the electrode plate (2) are rounded.

7. The high-frequency scavenger according to claim 1, characterized in that: The electric snare (1) further includes a core rod (15) and a slip ring (16); The slip ring (16) is slidably arranged on the outside of the core rod (15) along the axial direction of the core rod (15), and the conductive electrode (14) is fixedly arranged on the slip ring (16) and connected to the cable (13); The outer sheath tube (12) is rotatably arranged on the core rod (15).

8. The high-frequency eliminator according to claim 1, characterized in that: Both the electric snare (1) and the electrode plate (2) are disposable items.

9. A high-frequency scavenging system using the high-frequency scavenger according to any one of claims 1 to 8, characterized in that: It includes a high-frequency generating device (100) and an endoscope (200); The endoscope (200) includes a working channel (201); The conductive electrode (14) is connected to the high-frequency generating device (100); The size of the electrode plate (2) is larger than the inner diameter of the working channel (201). The outer sheath tube (12) is arranged in the working channel (201), and the electrode plate (2) is arranged outside the endoscope (200).

10. The high-frequency cleaning system according to claim 9, wherein: The high-frequency generating device (100) is a high-frequency electrotome main unit.

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