Negative-pressure-adjustable plasma operation electrode suitable for underwater operation of ear endoscope

Abstract

The utility model discloses a negative-pressure-adjustable plasma operation electrode suitable for underwater operation of an ear endoscope. The negative-pressure-adjustable plasma operation electrode comprises a fixing tube, a handle and a negative-pressure suction assembly which are sequentially connected. Wherein an electrode tip is further arranged at the end, away from the handle, of the fixing tube, an electrode assembly used for tissue ablation cutting is arranged in the electrode tip and connected with a conductive assembly, and the conductive assembly is arranged in the fixing tube and electrically connected with a cable connector arranged on the handle. The effect is better when floating tissue is treated, precise ablation of a local area can be achieved, and accidental damage to an unexpected ablation area of a nerve and blood vessel dense area is prevented; in the underwater operation process of the otoendoscope, blood generated in the operation can be timely absorbed so as to make the view clear; meanwhile, the negative pressure suction force can be finely controlled, so that the suction intensity and degree of the tissues can be conveniently and accurately regulated and controlled, and the suction and separation of the specific tissues are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of plasma surgical instruments, in particular to a plasma surgical electrode with adjustable negative pressure applicable to underwater operation of an otoscope. Background Art

[0002] With the continuous development of surgical operations, surgeons have gradually developed surgical methods for various parts of the human body, such as the underwater operation technology of an otoscope for ablating ear tissues or lesions. The underwater operation technology of an otoscope can carry out the minimally invasive plasma technology in the underwater operation of an otoscope to achieve the ablation and hemostasis of ear tissues or lesions at low temperature, which can not only ensure low thermal damage but also protect the normal ear tissues.

[0003] When performing an underwater operation of an otoscope, on the one hand, due to the relatively narrow space in the ear and the relatively rich and dense nerves and blood vessels, the existing plasma ablation electrodes have poor effects in dealing with floating tissues because they do not have the ability to adsorb tissues, and may cause accidental damage to non-intended ablation areas when dealing with areas with dense nerves and blood vessels; on the other hand, in underwater operations, if the blood is not sucked out in time, it will accumulate in the ear, seriously affecting the surgical field of view and making the surgical operation very inconvenient. Although the current continuous perfusion mode of underwater operation can partially solve the problem of poor surgical field of view caused by bleeding, in actual operations, when encountering a large amount of bleeding, the underwater operation will still have a blurred surgical field of view. An aspirating tube with an accurately adjustable negative pressure suction function is required to deal with the problem of unclear surgical field of view caused by bleeding, and at the same time, the exact bleeding position can be found to facilitate the hemostasis operation of the plasma surgical electrode. Therefore, a plasma surgical electrode that can accurately control its negative pressure suction function while realizing accurate ablation and suction functions is needed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a plasma surgical electrode with adjustable negative pressure applicable to underwater operation of an otoscope to solve the technical problems in the prior art that the plasma surgical electrode lacks the ability to adsorb tissues and cannot achieve accurate fixed-point ablation, resulting in additional damage to non-ablation areas and poor surgical field of view.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] The plasma surgical electrode with adjustable negative pressure applicable to underwater operation of an otoscope provided by the utility model includes:

[0007] Conductive assembly, the conductive assembly includes a first conductive component and a second conductive component, and a fixing tube is sleeved outside the first conductive component and the second conductive component; one end of the fixing tube is connected with a handle, the other end is connected with an electrode head, and a cable connector is arranged on the handle, and the cable connector is electrically connected with the conductive assembly;

[0008] Electrode assembly, the electrode assembly includes a first working electrode and a second working electrode; the first working electrode and the second working electrode are respectively connected with the first conductive component and the second conductive component;

[0009] Electrode head, the electrode head is used for installing and connecting the conductive assembly and the electrode assembly.

[0010] Negative pressure suction assembly, the negative pressure suction assembly includes a negative pressure suction tube, a negative pressure suction tube connector and a negative pressure suction adjustment assembly arranged on the negative pressure suction tube;

[0011] The first conductive component and the second conductive component are respectively arranged on two sides outside the negative pressure suction tube, and one end of the negative pressure suction tube is communicated with the electrode head.

[0012] By providing the negative pressure suction assembly, when the operator performs ablation work, the electrode head can be first moved to the ablation area, and then the negative pressure suction channel is aligned with the tissue to be ablated. By controlling the negative pressure suction assembly, the tissue at a certain point of the tissue to be ablated is gradually sucked into the negative pressure suction channel, and the sucked tissue is cut and ablated by the first working electrode and the second working electrode. After the ablation is completed, by controlling the negative pressure suction assembly, the remaining tissue can be separated from the negative pressure suction channel, so as to achieve precise point ablation, prevent additional damage to the normal tissue in the non-ablation area, and have a better ablation effect when dealing with floating tissue.

[0013] Optionally or preferably, the negative pressure suction adjustment assembly includes a negative pressure adjustment hole and a negative pressure adjustment valve arranged on the negative pressure suction tube;

[0014] A through hole is arranged in the middle of the negative pressure adjustment valve, and the through hole is communicated with the negative pressure adjustment hole.

[0015] By providing the negative pressure suction adjustment assembly, the operator can control the suction force in the negative pressure suction channel through fingers;

[0016] Specifically, by moving the finger to adjust the size of the negative pressure adjustment hole, thereby adjusting the amount of gas entering the negative pressure suction tube, and further controlling the adsorption ability of the negative pressure suction tube to the tissue or the suction amount of the blood generated during the operation;

[0017] The smaller the air intake of the negative pressure adjustment hole, the stronger the adsorption ability of the negative pressure suction tube to the tissue, and the more tissue to be ablated and surgical field liquid sucked into the negative pressure suction channel; on the contrary, the larger the air intake of the negative pressure adjustment hole, the weaker the adsorption ability of the negative pressure suction tube to the tissue, and the less tissue to be ablated and surgical field liquid sucked into the negative pressure suction channel.

[0018] Optionally or preferably, the end face of the negative pressure regulating valve is thumb-shaped, square, oval or round.

[0019] Optionally or preferably, the fixed tube and the middle part of the negative pressure suction tube are bent at a certain angle to form a bent part, and the bent part is used to make space for the ear endoscope to facilitate operation.

[0020] Optionally or preferably, the electrode head is a ceramic head; a plurality of conductive component mounting grooves, electrode component mounting grooves and electrode component clamping holes are respectively arranged on the electrode head;

[0021] Insulating bumps are arranged between the plurality of electrode component mounting grooves, and the insulating bumps are used to isolate the working electrode one and the working electrode two; the electrode head is coated with an insulating material layer.

[0022] Optionally or preferably, clamping bumps are arranged on both the working electrode one and the working electrode two, and the clamping bumps are connected with the electrode component clamping holes in a matching manner.

[0023] Optionally or preferably, both the working electrode one and the working electrode two are tile-shaped, and the end faces are smooth curved surfaces.

[0024] Optionally or preferably, the working area formed by the end face of the working electrode one and the end face of the working electrode two accounts for 1 / 2 to 2 / 3 of the area of the end face of the electrode head.

[0025] Optionally or preferably, the conductive component one and the conductive component two adopt a flexible circuit board with a wire and / or a single-core high-temperature wire.

[0026] Based on the above technical solutions, the utility model can at least produce the following technical effects:

[0027] 1. In the present invention, the negative pressure suction assembly with adjustable suction ability and the working electrode are combined through the electrode head. Since the negative pressure suction tube is provided with a negative pressure suction adjustment assembly, it is convenient for the operator to adjust the air intake of the negative pressure suction tube through the finger, so as to control the suction ability of the negative pressure suction tube;

[0028] 2. The present invention controls the tissue to be ablated by inhaling through fine adjustment of the air intake to achieve the function of precise fixed-point ablation, and has a better effect when dealing with floating tissue, can realize local area treatment, and prevent accidental damage to the unintended ablation area in the area where nerves and blood vessels are dense;

[0029] 3. During the underwater operation of the present invention, it can accurately suck out the blood generated during the operation, clearing the surgical field of view; at the same time, it can also finely control the suction force, facilitating the precise regulation of the suction intensity and degree on tissues, and facilitating the suction and detachment of specific tissues;

[0030] 4. The present invention simplifies the electrode design. During underwater operation, there is no need to set up the dripping or flushing device required for traditional plasma electrodes, and there is no need for dripping or flushing;

[0031] 5. The electrode of the present invention is slender, more suitable for the narrow ear canal operation cavity, reducing the operation difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is the overall structural schematic diagram of the plasma surgical electrode with negative pressure regulation applicable to underwater operation of an otoendoscope of the present utility model;

[0033] Figure 2 is the structural schematic diagram of the front end of the plasma surgical electrode with negative pressure regulation applicable to underwater operation of an otoendoscope of the present utility model;

[0034] Figure 3 is the structural schematic diagram of the electrode head in the plasma surgical electrode with negative pressure regulation applicable to underwater operation of an otoendoscope of the present utility model;

[0035] Figure 4 is the structural schematic diagram of the electrode assembly and the conductive assembly in the plasma surgical electrode with negative pressure regulation applicable to underwater operation of an otoendoscope of the present utility model.

[0036] In the figure: 10, conductive assembly; 11, first conductive part; 12, second conductive part; 20, fixed tube; 21, handle; 22, cable connector; 30, electrode assembly; 31, first working electrode; 32, second working electrode; 33, clamping projection; 40, electrode head; 41, conductive assembly installation groove; 42, electrode assembly installation groove; 43, electrode assembly clamping hole; 44, insulating projection; 50, negative pressure suction assembly; 51, negative pressure suction tube; 52, negative pressure suction tube connector; 53, negative pressure regulation hole; 54, negative pressure regulating valve; 55, negative pressure suction regulation assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0038] Embodiment

[0039] See also Figures 1 to 4 , a negative pressure-controlled plasma surgical electrode suitable for underwater operation of an ear endoscope, includes an electrode head 40, a fixed tube 20, a handle 21 and a negative pressure suction component 50 connected in sequence; wherein the electrode head 40 is arranged at the end of the fixed tube 20 away from the handle 21, and an electrode component 30 for tissue ablation and cutting is arranged in the electrode head 40, the above-mentioned electrode component 30 is connected to a conductive component 10, the conductive component 10 is arranged in the fixed tube 20, and is electrically connected to a cable connector 22 arranged on the handle 21. In actual work, the radio frequency wire of the host is electrically connected to the conductive component 10 through the above-mentioned cable connector 22, so as to provide the energy required by the electrode component 30.

[0040] In this embodiment, the fixing tube 20 may be made of PVDF, PTFE heat shrink tube or other metal or non-metal pipe materials.

[0041] In this embodiment, the conductive component 10 includes a conductive component 11 and a conductive component 2 12 which are respectively arranged (such as bonded) on both sides of the outside of the negative pressure suction tube 51 of the negative pressure suction component 50, and the fixing tube 20 is used to press and fix the above-mentioned conductive component 11 and the conductive component 2 12 on the negative pressure suction tube 51 of the negative pressure suction component 50.

[0042] See also Figure 4 In this embodiment, the conductive component 1 11 and the conductive component 2 12 are in the shape of long strips, one end of which is respectively connected to the working electrode 1 31 and the working electrode 2 32 , and the other end is connected to the host through the cable connector 22 .

[0043] The connection methods of the conductive component 1 11, the conductive component 2 12 and their corresponding working electrode 1 31, the working electrode 2 32 include but are not limited to welding, conductive adhesive bonding, etc.; the conductive component 1 11, the conductive component 2 12 can both adopt flexible printed circuits with wires, or single-core high-temperature wires.

[0044] See also Figure 1 , Figure 2 and Figure 4 In this embodiment, the electrode assembly 30 includes two working electrodes 1 31 and 32 with smooth end surfaces and overall tile-shaped. The working electrodes 1 31 and 32 are embedded in the electrode head 40 for ablation and cutting of tissues.

[0045] See also Figure 2 and Figure 3, in this embodiment, the electrode head 40 is used to mount and connect the conductive component 10 and the electrode component 30; specifically, a plurality of conductive component mounting grooves 41, electrode component mounting grooves 42 and electrode component clamping holes 43 are respectively provided on the electrode head 40, and insulating bumps 44 are provided between the electrode component mounting grooves 42, which are used to isolate the working electrode one 31 and the working electrode two 32; it is easy to understand that the above-mentioned conductive component mounting grooves 41 and electrode component mounting grooves 42 are respectively used to mount the corresponding conductive component 10 and the electrode component 30, and the electrode component 30 is fixedly mounted at the corresponding mounting position of the electrode head 40, and the fixing methods include but are not limited to metal insert injection molding, adhesive bonding, etc.; in order to prevent the fixation failure of the electrode component 30, in this embodiment, an electrode component clamping hole 43 is further provided on the electrode head 40, and clamping bumps 33 for matching with the above-mentioned electrode component clamping holes 43 are respectively provided on the working electrode one 31 and the working electrode two 32 to mount and fasten the above-mentioned working electrodes to prevent them from falling off.

[0046] In this embodiment, the electrode head 40 is a ceramic head, and an insulating material layer is coated thereon.

[0047] Compared with the prior art, the surgical electrode in this embodiment further has a negative pressure suction component 50. In this embodiment, the negative pressure suction component 50 includes a negative pressure suction tube 51, a negative pressure suction tube joint 52 and a negative pressure suction adjustment component 55 provided on the above-mentioned negative pressure suction tube 51. The negative pressure suction tube 51 is communicated with the negative pressure suction cavity of the electrode head 40 (that is, the cavity of the electrode head 40 including the section where the electrode component 30 is located).

[0048] Specifically, the negative pressure suction adjustment component 55 includes a negative pressure adjustment hole 53 and a negative pressure adjustment valve 54 provided on the negative pressure suction tube 51; a through hole is provided in the middle of the negative pressure adjustment valve 54, and the through hole is communicated with the negative pressure adjustment hole 53; the negative pressure adjustment valve 54 can be installed on the negative pressure adjustment hole 53 of the negative pressure suction tube 51 by means of welding, bonding or threaded connection, etc.

[0049] In this embodiment, in order to facilitate the operator to control the size of the negative pressure adjustment hole 53 with a finger, the end face of the above-mentioned negative pressure adjustment valve 54 is thumb-shaped. In other multiple embodiments, the end face of the above-mentioned negative pressure adjustment valve 54 can also be square, oval or circular, etc.

[0050] In order to achieve a better and safer ablation effect, in this embodiment, the working area formed by the end faces of the first working electrode 31 and the second working electrode 32 occupies 1 / 2 to 2 / 3 of the end face area of the electrode head 40. While meeting the working intensity, it can leave a safe operation space for ablation, facilitating the doctor to adjust the position according to the surgical situation. That is, only the tissue to be ablated is adsorbed between the inner side faces of the two working electrodes, that is, adsorbed into the working area of the electrode head 40, while the tissue to be protected or avoided is placed in the non-working area of the electrode head 40, so as to achieve the purpose of precise ablation in the narrow space in the ear and prevent additional damage to the tissue in the non-ablation area.

[0051] Furthermore, the suction force can be finely controlled by controlling the size of the negative pressure adjustment hole 53. By finely controlling the suction force, it is convenient to precisely control the intensity and degree of tissue attraction, and convenient for the attraction and detachment of specific tissues. In actual work, the operator adjusts the size of the negative pressure adjustment hole 53 by moving the finger, thereby adjusting the amount of gas entering the negative pressure suction tube 51, and then finely controlling the adsorption ability of the negative pressure suction tube 51 to the tissue or the suction amount of the blood generated during underwater operation; the smaller the air intake of the negative pressure adjustment hole 53, the stronger the adsorption ability of the negative pressure suction tube 51 to the tissue, and the more the tissue and liquid to be ablated entering the negative pressure suction cavity (this cavity can be used as the surgical ablation area) are sucked out; on the contrary, the larger the air intake of the negative pressure adjustment hole 53, the weaker the adsorption ability of the negative pressure suction tube 51 to the tissue, and the less the tissue and liquid to be ablated entering the negative pressure suction cavity are sucked out; for example, during the ablation work, the electrode head 40 can be first moved to the ablation area, then the negative pressure suction cavity is aligned with the tissue to be ablated, and by gradually closing the negative pressure adjustment hole 53, the tissue at a certain point of the tissue to be ablated is gradually sucked into the negative pressure suction cavity, and the sucked tissue is cut and ablated by the first working electrode 31 and the second working electrode 32. After the ablation is completed, the negative pressure adjustment hole 53 is opened. At this time, the adsorption ability of the negative pressure suction tube 51 to the tissue will be weakened, and the remaining tissue will detach from the negative pressure suction cavity, thus achieving precise fixed-point ablation and preventing additional damage to the tissue in the non-ablation area; in addition, during underwater operation, by controlling the size of the air intake of the negative pressure adjustment hole 53, the blood generated during the operation can be precisely sucked out in time, improving the clarity of the surgical field of view.

[0052] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A negative pressure-controlled plasma surgical electrode suitable for underwater ear endoscope operation, characterized in that: include: A conductive component (10), the conductive component (10) comprising a conductive component 1 (11) and a conductive component 2 (12), the conductive component 1 (11) and the conductive component 2 (12) being provided with a fixing tube (20) on their exteriors; one end of the fixing tube (20) being connected to a handle (21), and the other end being connected to an electrode head (40); a cable connector (22) being provided on the handle (21), and the cable connector (22) being electrically connected to the conductive component (10); An electrode assembly (30), the electrode assembly (30) comprising a working electrode 1 (31) and a working electrode 2 (32); the working electrode 1 (31) and the working electrode 2 (32) are connected to the conductive component 1 (11) and the conductive component 2 (12) respectively; the conductive component 1 (11) and the conductive component 2 (12) are respectively arranged between the negative pressure suction tube (51) and the fixed tube (20); An electrode head (40), the electrode head (40) being used to connect the conductive component (10) and the electrode component (30); A negative pressure suction component (50), the negative pressure suction component (50) comprising a negative pressure suction tube (51), a negative pressure suction tube joint (52), and a negative pressure suction adjustment component (55) arranged on the negative pressure suction tube (51), one end of the negative pressure suction tube (51) being connected to the electrode head (40).

2. The negative pressure-controlled plasma surgical electrode suitable for underwater ear endoscope operation according to claim 1, characterized in that: The negative pressure suction regulating component (55) comprises a negative pressure regulating hole (53) and a negative pressure regulating valve (54) arranged on the negative pressure suction tube (51); A through hole is provided in the middle of the negative pressure regulating valve (54), and the through hole is connected to the negative pressure regulating hole (53).

3. The negative pressure-controlled plasma surgical electrode suitable for underwater ear endoscope operation according to claim 2, characterized in that: The end surface of the negative pressure regulating valve (54) is thumb-shaped, square, oval or circular.

4. The negative pressure-controlled plasma surgical electrode suitable for underwater ear endoscope operation according to claim 1, characterized in that: The fixing tube (20) and the negative pressure suction tube (51) are bent at a certain angle in the middle to form a bent portion.

5. The negative pressure-controlled plasma surgical electrode suitable for underwater ear endoscope operation according to claim 1, characterized in that: The electrode head (40) is a ceramic head, and an insulating material layer is coated on the electrode head (40); the electrode head (40) is respectively provided with a plurality of conductive component mounting grooves (41), an electrode component mounting groove (42) and an electrode component clamping hole (43).

6. The negative pressure-controlled plasma surgical electrode suitable for underwater ear endoscope operation according to claim 5, characterized in that: An insulating protrusion (44) is provided between the plurality of electrode assembly mounting grooves (42), and the insulating protrusion (44) is used to isolate the first working electrode (31) from the second working electrode (32).

7. The negative pressure-controlled plasma surgical electrode suitable for underwater ear endoscope operation according to claim 5, characterized in that: The working electrode 1 (31) and the working electrode 2 (32) are both tile-shaped, and the end faces are both smooth curved surfaces. The working area formed by the end faces of the two electrodes occupies 1 / 2 to 2 / 3 of the end face area of ​​the electrode head (40).

8. The negative pressure-controlled plasma surgical electrode suitable for underwater ear endoscope operation according to claim 5, characterized in that: The working electrode 1 (31) and the working electrode 2 (32) are both provided with a clamping protrusion (33), and the clamping protrusion (33) is matched and connected with the clamping hole (43) of the electrode assembly.

9. The negative pressure-controlled plasma surgical electrode suitable for underwater ear endoscope operation according to claim 1, characterized in that: The conductive component 1 (11) and the conductive component 2 (12) are made of a flexible circuit board with conductive wires and / or a single-core high-temperature wire.

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