Surgical electrode assembly and electrode scalpel

Abstract

The utility model provides a surgical electrode assembly and an electrode scalpel, and relates to the technical field of medical instruments, an electrode tube cap is sleeved on an insulating member, the insulating member is made of an insulating material, and the insulating member isolates the electrode tube cap from an electrode wire penetrating out of the electrode assembly, so that the breakdown phenomenon of a surgical electrode is effectively avoided, and the service life of the surgical electrode is prolonged. The technical problem that in the prior art, when an existing plasma radio frequency electrode is conventionally used, due to the fact that the creepage distance between an electrode wire and an electrode tube cap is small, and an insulation measure has the failure risk, the electrode tube cap and an electrode outer tube are prone to breakdown is solved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a surgical electrode assembly and an electrode surgical knife. Background Technology

[0002] Significant progress has been made in the application of cryogenic plasma technology in surgery, particularly in electrosurgical systems. In modern medical practice, electrosurgical systems are widely used in various surgical procedures to perform specific functions such as tissue ablation, cutting, and hemostasis. These systems utilize high-frequency electrical energy to process soft tissues, such as sinus tissue, adipose tissue, or other tissues (e.g., menisci, cartilage, or synovial tissue in joints).

[0003] The operating mechanism of the cryogenic plasma system is based on advanced electrosurgical technology. It precisely controls the transmission of plasma energy to perform accurate surgical interventions with the assistance of saline solution. Specifically, when an alternating current excitation of a certain power and frequency is applied between the electrodes on the scalpel tip, it generates localized high Joule heating between the electrodes. This localized heating, combined with a redox reaction, forms a very thin gas film on the electrode surface. Through the special design of the electrodes (including their arrangement and material selection) and the optimization of the applied waveform, a concentrated distribution of electric field intensity can be achieved, thereby breaking down this gas film and generating plasma. When this plasma comes into contact with the saline solution, a plasma sheath approximately 100 micrometers thick forms at the interface. This sheath accelerates ion movement, causing them to bombard the solution surface and further act on biological tissue, leading to the molecular-level decomposition of tissue cells. These decomposed microparticles can be removed through the saline circulation system, thus achieving effective removal of diseased tissue, while also possessing the ability to puncture and cut.

[0004] Furthermore, the low-temperature plasma generated during the procedure also has a sterilization effect. Because its temperature can be strictly controlled between 40 and 70 degrees Celsius, it ensures the appropriate contraction of the collagen molecule's helical structure without damaging cell vitality. This means that ablation and hemostasis can be achieved simultaneously with the removal of diseased tissue, while minimizing impact on normal human tissue. This low-energy operation results in smaller surgical wounds and less bleeding, helping to shorten surgical time and the patient's postoperative recovery period.

[0005] Existing plasma radiofrequency electrodes, when used routinely, are prone to damage to the electrode cap and outer tube due to the small creepage distance between the electrode wire and the electrode tube cap, and the risk of insulation failure. This can affect the doctor's user experience and increase intraoperative trauma to the patient. Utility Model Content

[0006] The purpose of this invention is to provide a surgical electrode assembly and an electrode scalpel to alleviate the technical problem that existing plasma radio frequency electrodes are prone to damage to the electrode cap and outer tube during normal use due to the small creepage distance between the electrode wire and the electrode cap, and the risk of insulation failure.

[0007] In a first aspect, the surgical electrode assembly provided by this utility model includes: an electrode assembly, an electrode wire, an electrode cap, and an insulating component;

[0008] The electrode cap has a mounting hole, and the electrode assembly is mounted in the mounting hole;

[0009] One end of the electrode wire extends into the electrode assembly and is connected to the electrode assembly, while the other end of the electrode wire extends out of the electrode assembly.

[0010] The electrode cap is fitted onto the insulating member, which is made of insulating material to isolate the electrode wire, which passes through the electrode assembly and is located inside the electrode cap, from the electrode cap.

[0011] In an optional implementation,

[0012] The insulating component includes an insulating tube body and insulating ends;

[0013] The insulating tube body is configured as a tubular structure with a circular arc cross-section and openings at both ends;

[0014] The insulating end is connected to the opening at one end of the insulating tube body;

[0015] The electrode cap is fitted onto the insulating end and part of the insulating tube body.

[0016] In an optional implementation,

[0017] The electrode assembly includes a connector and electrode plates;

[0018] The connector is disposed in the mounting hole, and the electrode plate is disposed on the end face of the connector that extends out of the electrode cap;

[0019] One end of the electrode wire extends into the connector and connects to the electrode plate.

[0020] In an optional implementation,

[0021] The surgical electrode assembly also includes a first insulating tube;

[0022] The first insulating tube is sleeved over the electrode wire that extends from the electrode assembly.

[0023] In an optional implementation,

[0024] The surgical electrode assembly also includes a suction tube;

[0025] The connector has a flow channel, one end of the suction tube is connected to the connector, and the suction tube communicates with the flow channel. The suction tube is configured to draw external liquid into the suction tube through the flow channel.

[0026] In an optional implementation,

[0027] The electrode sheet is provided with liquid flow holes, and the liquid flow holes are provided in correspondence with the flow channels.

[0028] In an optional implementation,

[0029] The surgical electrode assembly also includes a second insulating tube;

[0030] One end of the second insulating tube extends into the electrode cap, the second insulating tube is located inside the insulating member, and the first insulating tube and the suction tube pass through the second insulating tube.

[0031] In an optional implementation,

[0032] The surgical electrode assembly also includes electrode tubes;

[0033] One end of the electrode tube extends into the electrode tube cap, and the insulating member and the second insulating tube pass through the electrode tube.

[0034] In an optional implementation,

[0035] The surgical electrode assembly also includes insulating heat shrink tubing;

[0036] The insulating heat shrink tubing is sleeved on the electrode tube, and the inner wall of the insulating heat shrink tubing is connected to the outer wall of the electrode tube.

[0037] Secondly, the electrode scalpel provided by this utility model includes the aforementioned surgical electrode assembly.

[0038] The surgical electrode assembly provided by this utility model effectively avoids the breakdown of the surgical electrode by placing the electrode cap on an insulating member. The insulating member is made of insulating material and isolates the electrode cap from the electrode wire passing through the electrode assembly. This alleviates the technical problem in the prior art where existing plasma radio frequency electrodes are prone to breakdown of the electrode cap and outer tube during normal use due to the small creepage distance between the electrode wire and the electrode cap and the risk of insulation failure. Attached Figure Description

[0039] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 A cross-sectional view of the overall structure of the surgical electrode assembly provided in an embodiment of this utility model;

[0041] Figure 2 This is a schematic diagram of the structure of the insulating component in the surgical electrode assembly provided in an embodiment of the present invention;

[0042] Figure 3 A front view schematic diagram of the insulating component in the surgical electrode assembly provided in an embodiment of this utility model;

[0043] Figure 4 An exploded view of the overall structure of the surgical electrode assembly provided in this embodiment of the utility model;

[0044] Figure 5 A schematic diagram of the installation structure of the suction tube and the first insulating tube with the electrode assembly in the surgical electrode assembly provided in this embodiment of the utility model;

[0045] Figure 6 A schematic diagram of the installation structure of the insulating component and electrode cap in the surgical electrode assembly provided in this embodiment of the utility model;

[0046] Figure 7 A schematic diagram of the installation structure of the suction tube, the first insulating tube, the electrode assembly, and the insulating component in the surgical electrode assembly provided in this embodiment of the utility model;

[0047] Figure 8 A schematic diagram of the installation structure of the suction tube, the first insulating tube, the electrode assembly, the insulating component, and the electrode cap in the surgical electrode assembly provided in this embodiment of the utility model;

[0048] Figure 9 A schematic diagram of the installation structure of the second insulating tube, electrode cap, insulating component, and electrode assembly in the surgical electrode assembly provided in this embodiment of the utility model;

[0049] Figure 10 This is a schematic diagram of the installation structure of the electrode tube, electrode tube cap, and electrode assembly in the surgical electrode assembly provided in this embodiment of the utility model.

[0050] Icons: 100-Electrode assembly; 110-Connector; 120-Electrode sheet; 121-Liquid flow hole; 200-Electrode wire; 300-Electrode cap; 400-Insulating component; 410-Insulating tube body; 420-Insulating end; 500-First insulating tube; 600-Suction tube; 700-Second insulating tube; 800-Electrode tube; 900-Insulating heat shrink tubing. Detailed Implementation

[0051] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0052] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0055] like Figure 1 , Figure 4As shown, the surgical electrode assembly provided in this embodiment includes: an electrode assembly 100, an electrode wire 200, an electrode cap 300, and an insulating member 400; the electrode cap 300 has a cap-shaped structure and has a mounting hole, which is opened on the side wall of the electrode cap 300, and the electrode assembly 100 is installed in the mounting hole; one end of the electrode wire 200 extends into the electrode assembly 100 and is connected to the electrode assembly 100, and the other end of the electrode wire 200 passes through the electrode assembly 100; the electrode cap 300 is sleeved on the insulating member 400, and the insulating member 400 is made of insulating material to isolate the electrode wire 200, which passes through the electrode assembly 100 and is located inside the electrode cap 300, from the electrode cap 300.

[0056] It should be noted that the height of the insulating component 400 is lower than the position of the mounting hole of the electrode cap 300, so as to avoid the insulating component 400 blocking the mounting hole and affecting the installation of the electrode assembly 100 into the mounting hole.

[0057] Regarding the structure and shape of the insulating member 400, specifically:

[0058] like Figure 2 , Figure 3 , Figure 6 As shown, the insulating component 400 includes an insulating tube body 410 and an insulating end 420. The insulating tube body 410 is configured as a tubular structure with an arc-shaped cross-section and openings at both ends. The insulating end 420 is connected to one end opening of the insulating tube body 410. It should be noted that the insulating tube body 410 and the insulating end 420 are integrally formed structures. The electrode cap 300 is sleeved on the insulating end 420 and part of the insulating tube body 410.

[0059] Optionally, the insulating material of the insulating component 400 may be set as a material with excellent temperature resistance and insulation properties, such as Pebax, PTFE or PVDF.

[0060] Regarding the structure and shape of the electrode assembly 100, specifically:

[0061] like Figure 5 As shown, the electrode assembly 100 includes a connector 110 and an electrode plate 120. The connector 110 is specifically a ceramic base with insulation properties. The connector 110 is disposed in a mounting hole. The electrode plate 120 is disposed on the end face of the connector 110 extending out of the electrode tube cap 300. The connector 110 has a wire channel. One end of the electrode wire 200 extends into the wire channel in the connector 110 and is connected to the electrode plate 120. A portion of the electrode wire 200 is placed inside the connector 110.

[0062] Additionally, see Figure 1The top of the insulating member 400 should be at least 1 mm higher than the bottom of the connector 110, so that there is sufficient creepage distance between the electrode wire 200 and the electrode cap 300.

[0063] like Figure 7 As shown, in an optional embodiment, the surgical electrode assembly further includes a first insulating tube 500; the first insulating tube 500 is sleeved on the electrode wire 200 that extends from the connector 110, the electrode wire 200 passes through the first insulating tube 500, and at the position between the first insulating tube 500 and the connector 110, the electrode wire 200 exits from the first insulating tube 500, bends and enters the connector 110, and connects with the electrode sheet 120. The first insulating tube 500 is set as an insulating material to isolate the electrode wire 200.

[0064] like Figure 8 As shown, in an optional embodiment, the surgical electrode assembly further includes a suction tube 600; the connecting seat 110 has a flow channel, and one end of the suction tube 600 is connected to the connecting seat 110. Specifically, a connecting hole is provided on the side of the connecting seat 110, and the connecting hole communicates with the flow channel. The suction tube 600 extends into the connecting hole, so that the suction tube 600 communicates with the flow channel. The end of the suction tube 600 away from the connecting seat 110 is connected to a negative pressure device, so that the suction tube 600 generates negative pressure, thereby enabling the suction tube 600 to draw external liquid into the suction tube 600 through the flow channel, and to remove blood and liquid.

[0065] In addition, after the suction tube 600 is connected to the connecting seat 110, the suction tube 600 provides support for the connecting seat 110, supporting the connecting seat 110 in the mounting hole. It should be noted that in order to avoid the electrode wire 200 and the electrode tube cap 300 being too close, after the connecting seat 110 is supported in the mounting hole, the first insulating tube 500 and the insulating member 400 need to have a certain gap.

[0066] In an optional embodiment, the electrode sheet 120 is provided with a liquid flow hole 121, which is correspondingly provided with a flow channel.

[0067] like Figure 9 As shown, in an optional embodiment, the surgical electrode assembly further includes a second insulating tube 700; the diameter of the second insulating tube 700 is larger than the diameter of the first insulating tube 500, one end of the second insulating tube 700 extends into the electrode cap 300, the second insulating tube 700 is located inside the insulating member 400, and the first insulating tube 500 and the suction tube 600 pass through the second insulating tube 700. The second insulating tube 700 provides further insulation and reduces the risk of breakdown.

[0068] like Figure 10As shown, in an optional embodiment, the surgical electrode assembly further includes an electrode tube 800; one end of the electrode tube 800 extends into the electrode tube cap 300, and the insulating member 400 and the second insulating tube 700 pass through the electrode tube 800. The electrode tube 800 serves as a loop electrode, and the electrode wire 200 can be connected to the electrode tube 800 through a liquid medium.

[0069] In an optional embodiment, the surgical electrode assembly further includes an insulating heat shrink tubing 900; the insulating heat shrink tubing 900 is sleeved on the electrode tube 800, and the inner wall of the insulating heat shrink tubing 900 is connected to the outer wall of the electrode tube 800. The connection method is heat shrink connection. It should be noted that after the insulating heat shrink tubing 900 is connected to the electrode tube 800, it is necessary to ensure that part of the electrode tube 800 is exposed to ensure that the electrode tube 800 can conduct electricity with the electrode wire 200.

[0070] The surgical electrode assembly provided in this embodiment, by sleeved electrode cap 300 on insulating member 400, the insulating member 400 being made of insulating material, isolates electrode cap 300 from electrode wire 200 extending from electrode assembly 100, effectively avoiding breakdown of surgical electrode, and alleviating the technical problem in the prior art where existing plasma radio frequency electrodes, during normal use, are prone to breakdown of electrode cap 300 and electrode outer tube due to small creepage distance between electrode wire 200 and electrode cap 300 and the risk of insulation failure.

[0071] Based on the above embodiments, the electrode scalpel provided in this embodiment includes the surgical electrode assembly provided in the above embodiments.

[0072] Since the technical effects of the electrode scalpel provided in this embodiment are the same as those of the surgical electrode assembly provided in the above embodiments, they will not be described again here.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A surgical electrode assembly, characterized in that, include: Electrode assembly (100), electrode wire (200), electrode cap (300), and insulating component (400); The electrode cap (300) has a mounting hole, and the electrode assembly (100) is mounted in the mounting hole; One end of the electrode wire (200) extends into the electrode assembly (100) and is connected to the electrode assembly (100), while the other end of the electrode wire (200) extends out of the electrode assembly (100). The electrode cap (300) is fitted onto the insulating member (400), which is made of insulating material to isolate the electrode wire (200) that passes through the electrode assembly (100) and is located inside the electrode cap (300) from the electrode cap (300).

2. The surgical electrode assembly according to claim 1, characterized in that, The insulating component (400) includes an insulating tube body (410) and an insulating end (420); The insulating tube body (410) has openings at both ends; The insulating end (420) is connected to one end opening of the insulating tube body (410); The electrode cap (300) is fitted onto the insulating end (420) and part of the insulating tube body (410).

3. The surgical electrode assembly according to claim 1, characterized in that, The electrode assembly (100) includes a connector (110) and an electrode sheet (120); The connector (110) is disposed in the mounting hole, and the electrode plate (120) is disposed on the end face of the connector (110) extending out of the electrode cap (300); One end of the electrode wire (200) extends into the connector (110) and is connected to the electrode plate (120).

4. The surgical electrode assembly according to claim 3, characterized in that, The surgical electrode assembly also includes a first insulating tube (500); The first insulating tube (500) is sleeved on the electrode wire (200) that extends from the electrode assembly (100).

5. The surgical electrode assembly according to claim 4, characterized in that, The surgical electrode assembly also includes a suction tube (600); The connector (110) has a flow channel, one end of the suction tube (600) is connected to the connector (110), and the suction tube (600) communicates with the flow channel. The suction tube (600) is configured to draw external liquid into the suction tube (600) through the flow channel.

6. The surgical electrode assembly according to claim 5, characterized in that, The electrode sheet (120) is provided with a liquid flow hole (121), and the liquid flow hole (121) is provided in correspondence with the flow channel.

7. The surgical electrode assembly according to claim 5, characterized in that, The surgical electrode assembly also includes a second insulating tube (700); One end of the second insulating tube (700) extends into the electrode cap (300), the second insulating tube (700) is located inside the insulating member (400), and the first insulating tube (500) and the suction tube (600) pass through the second insulating tube (700).

8. The surgical electrode assembly according to claim 7, characterized in that, The surgical electrode assembly also includes an electrode tube (800); One end of the electrode tube (800) extends into the electrode tube cap (300), and the insulating member (400) and the second insulating tube (700) pass through the electrode tube (800).

9. The surgical electrode assembly according to claim 8, characterized in that, The surgical electrode assembly also includes an insulating heat shrink tubing (900); The insulating heat shrink tube (900) is sleeved on the electrode tube (800), and the inner wall of the insulating heat shrink tube (900) is connected to the outer wall of the electrode tube (800).

10. An electrode surgical scalpel, characterized in that, Includes the surgical electrode assembly as described in any one of claims 1-9.

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