Detachable plasma operation device and plasma operation electrode

Abstract

The utility model relates to the technical field of medical instruments, and provides a detachable plasma operation device and a plasma operation electrode aiming at the problems that in the prior art, the production cost of the plasma operation electrode is high, and resource waste is easily caused. Specifically, the plasma operation electrode comprises a cutter bar, a cutter head is arranged at one end of the cutter bar, a first connecting part is arranged at the end, away from the cutter head, of the cutter bar, and the first connecting part is provided with a mechanical connecting unit, an energy connecting unit and a pipeline connecting unit. According to the plasma operation electrode handle, the independent plasma operation electrode is formed, the first connecting part is used for being rapidly connected with other plasma operation electrode handles, the effect of avoiding cross infection can be achieved, compared with the prior art, the electrode handle can be used repeatedly, and the cost of the plasma operation electrode is greatly reduced; the utility model further provides a plasma operation device with the plasma operation electrode.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a plasma surgical electrode and a detachable plasma surgical device using the electrode. Background Art

[0002] In the prior art, combined plasma surgical electrodes are usually used to achieve functions such as tissue cutting, ablation, and hemostasis under low temperature (40°C to 70°C) conditions, and are widely used in otolaryngology surgeries.

[0003] In the prior art, plasma surgical electrodes include an operating handle, an electrode body, an infusion assembly and a suction assembly. In order to make the overall structure more compact, the operating handle, the electrode body, the infusion assembly and the suction assembly all adopt an integrated structure. However, this structure not only requires high precision in processing and manufacturing during use, but also requires that the electrode body and the operating handle be destroyed as a whole after use to prevent cross infection, resulting in serious waste of resources. Utility Model Content

[0004] The utility model aims to at least solve the problem in the prior art that the production cost of plasma surgical electrodes is high and easily leads to waste of resources, and further provides a plasma surgical electrode.

[0005] The utility model provides a plasma surgical electrode, comprising:

[0006] A knife bar, wherein the knife bar is provided with a first housing;

[0007] A cutter head is arranged at one end of the cutter rod, a first suction channel is arranged in the cutter head, and the first suction channel extends into the first shell; and a first connecting part is arranged at the other end of the cutter rod away from the cutter head; the first connecting part is provided with a mechanical connection unit, an energy connection unit and a pipeline connection unit; the mechanical connection unit is located on the first shell, and is used for detachably connecting an external operating handle assembly; the energy connection unit is connected to the cutter head, and is used for transmitting energy to the cutter head; the pipeline connection unit is connected to the first suction channel, and is used for transmitting the fluid in the first suction channel.

[0008] Furthermore, it also includes: a sensor, which is arranged at one end of the tool rod close to the tool head, or is arranged on the tool head; the first connecting part is also provided with a signal transmission unit connected to the sensor, and the signal transmission unit is used to transmit signals between the sensor.

[0009] A detachable plasma surgical device comprises the plasma surgical electrode and an operating handle assembly; the operating handle assembly comprises a handle body, on which a suction unit and a cable unit are arranged; the operating handle assembly is also provided with a second connecting portion, the second connecting portion is located at the front end of the handle body, and the second connecting portion and the first connecting portion are detachably connected via a mechanical connecting unit; the suction unit is used to connect to a pipeline connecting unit and to suck the fluid; the cable unit is used to transmit energy to an energy connecting unit.

[0010] Furthermore, the second connecting portion is provided with a radial groove, and the mechanical connecting unit includes at least one hook, and the hook is detachably connected to the radial groove.

[0011] Furthermore, the second connecting portion is provided with a guiding protrusion or a guiding groove; and the mechanical connecting unit further includes a guiding groove or a guiding protrusion matching with the second connecting portion.

[0012] Furthermore, a second suction channel is provided in the operating handle assembly, one end of the second suction channel is connected to the suction unit, and a second cone is provided at the other end of the second suction channel; the pipeline connection unit is provided with a first cone matching the second cone.

[0013] Furthermore, the second connection portion is provided with an energy output unit, and the energy output unit is matched and connected with the energy connection unit.

[0014] Furthermore, the second connection portion is provided with a signal acquisition unit, and the signal acquisition unit is matched and connected with the signal transmission unit.

[0015] Furthermore, the second suction channel is located in the middle of the second connecting portion; the energy output unit and / or the signal acquisition unit are arranged along the circumference of the second suction channel.

[0016] Furthermore, buttons are arranged on the handle body.

[0017] When the utility model is used in practice, the plasma surgical electrode includes a knife rod with an overall rod-shaped structure, and a first shell is arranged at the rear end of the knife rod; a knife head is arranged at one end of the knife rod, and the knife head includes an outer insulating layer, an outer electrode, an insulating seat and an inner electrode which are coaxially arranged, and a first suction channel is also arranged in the insulating seat, and the first suction channel extends into the first shell; a first connecting part is arranged on the side of the knife rod away from the knife head; wherein the first connecting part is provided with a mechanical connection unit, an energy connection unit, a signal transmission unit and a pipeline connection unit, and the first shell is used for detachably connecting an external operating handle assembly through the mechanical connection unit, so as to improve the stability and safety of the whole structure during the operation; the energy connection unit provides energy to the outer electrode and the inner electrode by transmitting energy, so as to ensure the reliability of the electric field during the operation; the signal transmission unit is used for transmitting signals, including control electrode operation signals, pipeline suction or liquid delivery signals, temperature signals, tissue signals, etc.; the pipeline connection unit is used for delivering fluids.

[0018] The utility model forms an independent plasma surgical electrode from the front part of a traditional plasma surgical electrode, and realizes quick connection with an external operating handle assembly through a first connecting part. In actual use, directly replacing the plasma surgical electrode of the utility model can also achieve the effect of avoiding cross infection. Compared with the prior art, its external operating handle assembly can be used multiple times, which greatly reduces the cost of the plasma surgical electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the plasma surgical electrode of the utility model from the first viewing angle.

[0020] Figure 2 This is a schematic diagram of the plasma surgical electrode of the utility model from a second viewing angle.

[0021] Figure 3 It is a schematic diagram of partial disassembly of the detachable plasma surgical device of the utility model.

[0022] Figure 4 yes Figure 3 A magnified schematic diagram of area A in the middle.

[0023] Figure 5 The utility model is a schematic cross-sectional view of one embodiment of the detachable plasma surgical device.

[0024] Figure 6 yes Figure 5 Enlarged schematic diagram of area B in the middle.

[0025] Figure 7 yes Figure 5 Enlarged schematic diagram of area C in the middle.

[0026] Reference numerals:

[0027] A knife rod 100, an outer insulating layer 101, an outer electrode 102, an insulating seat 103, an inner electrode 104, a knife head 110, a first suction channel 112, a first connecting part 120, a first shell 1201, a mechanical connection unit 121, a hook 1211, a guide protrusion 1212, a pipeline connection unit 122, a first cone 1221, a signal transmission unit 123, an energy connection unit 124, a sensor 130, an operating handle assembly 400, a handle body 401, a second shell 402, a second connecting part 410, a radial groove 411, a guide groove 412, a suction unit 420, a second suction channel 421, a second cone 4211, a cable unit 430, an energy output unit 431, a signal acquisition unit 432, and a button 440. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; wherein the front end in the present invention refers to the end close to the patient's tissue, and the rear end refers to the end away from the tissue. Similarly, the description of the terms "first" or "second" and their variations is only for the purpose of distinguishing the components, and does not limit the scope of the present application.

[0030] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0031] Reference Manual Attached Figure 1 , Attachment Figure 2A plasma surgical electrode comprises: a knife rod 100; a knife head 110, which is arranged at one end of the knife rod 100; and a first connecting part 120, which is arranged at the other end away from the knife head 110; the first connecting part 120 is provided with a mechanical connection unit 121, an energy connection unit 124 and a pipeline connection unit 122; the mechanical connection unit 121 is used for detachably connecting an external operating handle assembly; the energy connection unit 124 is used for transmitting energy to the knife head 110; the pipeline connection unit 122 is used for transmitting fluid.

[0032] The plasma surgical electrode of the present invention includes a knife rod 100 with an overall rod-shaped structure, and a knife head 110 is arranged at one end of the knife rod 100. The knife head 110 includes an outer insulating layer 101, an outer electrode 102, an insulating seat 103 and an inner electrode 104 which are coaxially arranged, and a first suction channel 112 is also arranged in the insulating seat 103; the knife head 110 can be used as a part of the knife rod 100, and can also form a separate component connected to the knife rod 100. Since the above components and their relative position connection relationship can be selected from existing technical components, they will not be repeated here.

[0033] In one embodiment, the reference specification Figure 1 To Attachment Figure 4 , Attachment Figure 7 The plasma surgical electrode comprises a knife rod 100, a first housing 1201 is arranged at the rear end of the knife rod 100, and a first suction channel 112 runs through the first housing 1201. In the present invention, the first suction channel 112 can be composed of one or more pipes or cavities for conveying fluids. A knife head 110 is provided on the side of the knife rod 100 close to the patient's tissue, and a first connection part 120 is provided on the side away from the knife head 110; wherein the first connection part 120 is provided with a mechanical connection unit 121, an energy connection unit 124, a signal transmission unit 123 and a pipeline connection unit 122, wherein the mechanical connection unit 121 is located on the first shell 1201, and is used for detachably connecting an external operating handle assembly to improve the stability and safety of the entire structure during surgery; the energy connection unit 124 is connected to the knife head 110, and provides energy to the outer electrode 102 and the inner electrode 104 by transmitting energy, so as to ensure a reliable electric field during operation; the pipeline connection unit 122 is connected to the plasma surgical electrode knife head 110, and is used for conveying fluid. The fluid of the utility model refers to tissue fragments or a mixture of tissue fragments and other media, such as blood, solution, etc., generated by the electrode after cutting tissue.

[0034] The utility model forms an independent plasma surgical electrode from the front part of a traditional plasma surgical electrode, and realizes quick connection with an external operating handle assembly through a first connecting portion 120. In actual use, directly replacing the plasma surgical electrode of the utility model can also achieve the effect of avoiding cross infection. Compared with the prior art, its external operating handle assembly can be used multiple times, which greatly reduces the cost of the plasma surgical electrode.

[0035] In another embodiment, as shown in the attached Figure 3 To Attachment Figure 6 As shown, the knife bar 100 is also provided with a sensor 130, which is arranged at one end of the knife bar 100 close to the knife head 110 in this embodiment, and can also be arranged at the knife head 110 in other embodiments; and the sensor 130 is connected to the signal transmission unit 123; the signal transmission unit 123 is used to transmit signals, including control electrode operation signals, pipeline suction or liquid delivery signals, temperature signals, tissue signals, position signals, etc. For example, a temperature sensor can be selected to be arranged on one side of the outer electrode 102 close to the knife head 110, so as to sense the temperature of the knife head 110 during the operation in real time, and transmit the temperature to the control unit of the plasma surgical electrode through the signal transmission unit 123, so as to facilitate the real-time detection of the temperature of the knife head 110 during the operation, avoid tissue damage due to overheating, and improve the safety and reliability of the operation. In other embodiments, a flow sensor can also be installed to detect the flow of the medium; or an infrared sensor can be installed to detect the distance of the knife head 110; or a tissue recognition sensor can be selected to identify the tissue. When used specifically, one or more of the above sensors can be installed. By adding a sensor to the cutter head 110 or the end of the cutter rod 100 close to the cutter head 110, the intraoperative scene can be more clearly understood, further improving the safety and reliability of the operation.

[0036] In another embodiment, as shown in the attached Figure 3 To Attachment Figure 6As shown, a detachable plasma surgical device is also provided, which includes the plasma surgical electrode in the above-mentioned embodiment, and also includes an operating handle assembly 400, the operating handle assembly 400 includes a handle body 401, and the handle body 401 is provided with a suction unit 420 and a cable unit 430, the suction unit 420 is used to suck out fluids to ensure a clear surgical field of view; the cable unit 430 is used to transmit energy, and can also be used for related signal transmission, or has the effect of transmitting energy and signal transmission at the same time; a second connecting portion 410 is also provided at the front end of the handle body 401, and the second connecting portion 410 is located at the front end of the handle body 401, and the second connecting portion 410 matches the first connecting portion 120. In this way, in specific use, before surgery, a knife rod 100 and an operating handle assembly 400 can be selected as needed, and a plasma surgical device can be quickly formed through the matching connection of the first connecting portion 120 and the second connecting portion 410; after surgery, the surgical electrode can be selected to be disassembled and destroyed from the connection, and the operating handle assembly 400 can be further used after disinfection. Compared with the prior art, directly replacing the front end part of the plasma surgical electrode device can also achieve the effect of avoiding cross infection. The operating handle assembly 400 in this solution can be used multiple times, and because a pipeline connection unit is provided, it can be applicable to any electrode knife rod with or without pipeline connection requirements, thereby greatly reducing the cost of plasma surgical electrodes.

[0037] In the specific connection between the first connection part 120 and the second connection part 410, various connection methods in the prior art can be selected, for example, overlapping each other, or magnetic connection, etc.

[0038] In another embodiment, the second connection portion 410 is provided with a radial groove 411, and the mechanical connection unit 121 includes more than one hook 1211, and the hook 1211 matches the radial groove 411. Figure 5 , Attachment Figure 7 As shown, radial grooves 411 are provided on the handle body 401 along the circumferential direction, and multiple hooks 1211 are provided on the outer insulating layer 101. In use, the hooks 1211 are engaged with the radial grooves 411 to improve the stability of the overall structure and facilitate connection and disassembly. Furthermore, the hooks 1211 can be set as elastic elements, which is more convenient to operate.

[0039] In another embodiment, in order to further facilitate operation, the second connection portion 410 is provided with a guide groove 412; the mechanical connection unit 121 also includes a guide protrusion 1212 matching the second connection portion 410. Figure 3As shown, a guide groove 412 is provided on the handle body 401 along the axial direction, and a guide protrusion 1212 is provided on the outer insulating layer 101. In use, the guide groove 412 cooperates with the guide protrusion 1212 to achieve rapid installation. Furthermore, the guide protrusion 1212 can be provided on the handle body 401 along the axial direction, and the guide groove 412 can be provided on the outer insulating layer 101, which can also achieve the same effect, and it belongs to the technical solution equivalent to the above-mentioned embodiment.

[0040] In another embodiment, as shown in the attached Figure 5 , Attachment Figure 7 As shown, a second suction channel 421 is provided in the operating handle assembly 400, one end of the second suction channel 421 is connected to the suction unit 420, and a second cone 4211 is provided at the other end of the second suction channel 421; the pipeline connection unit 122 is provided with a first cone 1221 matching the second cone 4211. During the operation, the plasma surgical electrode will produce a large amount of broken tissue and physiological saline and related mixtures, which are discharged through the first suction channel 112 in the middle of the plasma surgical electrode. The utility model adopts a combined structure, the second suction channel 421 is provided in the operating handle assembly 400, and the knife rod 100 is also provided with the first suction channel 112. At the junction of the two, by selecting mutually matching cone surfaces for connection, not only can the smooth discharge of the related mixture be guaranteed, but also the sealing of the joint can be improved, and the safety of the operation can be further improved.

[0041] In another embodiment, the second connection portion 410 is provided with an energy output unit 431, and the energy output unit 431 matches the energy connection unit 124. Figure 3 To Attachment Figure 7 As shown, a hole-shaped structure is provided at the front end of the operating handle assembly 400 as an energy output unit 431, and a needle-shaped structure matching the hole-shaped structure is provided at the shank 100 as an energy connection unit 124. During use, by inserting the energy connection unit 124 into the energy output unit 431, the two can be in contact to achieve energy transmission, thereby improving the reliability of energy transmission. Similarly, the second connecting portion 410 is provided with a signal acquisition unit 432 which is also provided as a hole-shaped structure, and the signal transmission unit 123 is provided with a needle-shaped structure matching the hole-shaped structure; during use, by inserting the signal transmission unit 123 into the signal acquisition unit 432, the two can be in contact to achieve signal transmission, thereby improving the reliability of signal transmission.

[0042] In another embodiment, as shown in the attached Figure 2 , Figure 3 , Figure 5 , Figure 7As shown, the second connecting portion 410 includes a second shell 402 of a tubular structure, a radial groove 411 is arranged on the inner side of the second shell 402 along the circumferential direction, and a guide groove 412 is arranged along the axial direction; the second suction channel 421 is located in the middle of the second shell 402; the energy output unit 431 and the signal acquisition unit 432 are both in the shape of a jack and are evenly arranged along the second suction channel 421; connected thereto, the first connecting portion 120 also has a first shell 1201 of a tubular structure, a plurality of hooks 1211 are arranged on the outer side of the first shell 1201 along the circumferential direction, and a guide protrusion 121 is arranged along the axial direction. 2; The first suction channel 112 is located in the middle of the first shell 1201, and the first suction channel 112 is connected with a pipeline connection unit 122; the energy connection unit 124 and the signal transmission unit 123 are both pin-shaped and evenly arranged along the first suction channel 112; when connected, the pipeline connection unit 122 is docked with the second suction channel 421, the energy connection unit 124 is docked with the energy output unit 431, the signal transmission unit 123 is docked with the signal acquisition unit 432, the hook 1211 is docked with the radial groove 411, and the guide protrusion 1212 is docked with the guide groove 412; thus, a quick connection is achieved. It should be further explained that the utility model selects the connection structure of the first connection part 120 and the second connection part 410 to realize a combined plasma surgical device, which reduces the cost of plasma surgical electrodes in the prior art. This modular combination method also further improves the flexibility and customizability of production.

[0043] Secondly, at the connection, the utility model creatively divides a plurality of connection units, which is not only convenient for production and manufacturing, but also convenient for later maintenance and repair. At the same time, the division of a plurality of connection units can also effectively disperse the stress at the connection, enhance the reliability and durability of the connection, and further ensure the reliability of the connection. In particular, the selection of the card slot type mechanical connection not only provides a stable physical connection, but also ensures quick alignment and easy locking during the connection process, greatly improving the convenience of operation during the operation; and the selection of the conical surface in the pipeline for sealing connection effectively prevents the leakage of waste during the operation, ensures the safe environment of the operation and the safety of the patient, and the conical surface sealing connection also has good adaptability and wear resistance, and can maintain stable sealing performance for a long time. The pinhole matching structure connection is selected for energy and signal transmission, which not only has a small contact resistance and signal loss, but also can effectively resist the vibration and impact during the operation, realize the efficient and stable transmission of energy and signals, and ensure the stable operation and accurate control of the surgical electrode.

[0044] In another embodiment, if Figure 3As shown, the handle body 401 is provided with a button 440, which controls the start and stop of the surgical device of the utility model, as well as the energy transmission size, etc. The button 440 is arranged on the handle body 401, and multiple uses are also achieved, which reduces the cost of plasma surgical electrodes in the prior art.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "another embodiment", "other embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A plasma surgical electrode, characterized in that: include: A knife rod (100), wherein the knife rod (100) is provided with a first shell (1201); A cutter head (110) is arranged at one end of the cutter rod (100), a first suction channel (112) is arranged in the cutter head (110), and the first suction channel (112) extends into the first shell (1201); and, The first connection portion (120) is arranged at the other end of the knife rod (100) away from the knife head (110); the first connection portion (120) is provided with a mechanical connection unit (121), an energy connection unit (124) and a pipeline connection unit (122); the mechanical connection unit (121) is located on the first shell (1201) and is used for detachably connecting to an external operating handle assembly; the energy connection unit (124) is connected to the knife head (110) and is used for transmitting energy to the knife head (110); the pipeline connection unit (122) is connected to the first suction channel (112) and is used for transmitting fluid in the first suction channel (112).

2. The plasma surgical electrode according to claim 1, characterized in that: Also includes: A sensor (130) is arranged at an end of the knife rod (100) close to the knife head (110), or is arranged at the knife head (110); The first connecting portion (120) is further provided with a signal transmission unit (123) connected to the sensor (130), and the signal transmission unit (123) is used to transmit a signal to the sensor (130).

3. A detachable plasma surgical device, characterized in that: The invention comprises a plasma surgical electrode as claimed in claim 1 or 2, and an operating handle assembly (400); the operating handle assembly (400) comprises a handle body (401), and a suction unit (420) and a cable unit (430) are arranged on the handle body (401); the operating handle assembly (400) is also provided with a second connecting portion (410), the second connecting portion (410) is located at the front end of the handle body (401), and the second connecting portion (410) and the first connecting portion (120) are detachably connected via a mechanical connecting unit (121); the suction unit (420) is used to connect to a pipeline connecting unit (122) and to suck the fluid; the cable unit (430) is used to transmit energy to an energy connecting unit (124).

4. The plasma surgery device according to claim 3, characterized in that: The second connection portion (410) is provided with a radial groove (411), and the mechanical connection unit (121) comprises at least one hook (1211), and the hook (1211) is detachably connected to the radial groove (411).

5. The plasma surgical device according to claim 4, characterized in that: The second connection portion (410) is provided with a guide groove (412); the mechanical connection unit (121) further comprises a guide protrusion (1212) matching the second connection portion (410).

6. The plasma surgery device according to claim 3, characterized in that: A second suction channel (421) is provided in the operating handle assembly (400); one end of the second suction channel (421) is connected to the suction unit (420); and a second cone (4211) is provided at the other end of the second suction channel (421); and the pipeline connection unit (122) is provided with a first cone (1221) matching the second cone (4211).

7. The plasma surgery device according to claim 6, characterized in that: The second connection portion (410) is provided with an energy output unit (431), and the energy output unit (431) is matched and connected with the energy connection unit (124).

8. The plasma surgery device according to claim 7, characterized in that: The second connection portion (410) is provided with a signal collection unit (432), and the signal collection unit (432) is matched and connected with the signal transmission unit (123).

9. The plasma surgery device according to claim 8, characterized in that: The second suction channel (421) is located in the middle of the second connecting portion (410); the energy output unit (431) and / or the signal acquisition unit (432) are arranged along the circumference of the second suction channel (421).

10. The plasma surgery device according to any one of claims 4 to 9, characterized in that: The handle body (401) is provided with a button (440).

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