Plasma operation electrode

Abstract

The utility model discloses a plasma surgical electrode, and relates to the technical field of medical instruments. In order to solve the problem that an existing tool bit for the flat gland operation is prone to blocking a suction hole, the following technical scheme is provided: the tool bit comprises a tool bit, a tool bar and a handle, and the tail end of the handle is connected with a suction tube, an instillation tube and a connector; the tool bit comprises an insulating ceramic head, a return electrode and an active electrode; the return electrode comprises a first electrode and a second electrode, the middle of the sheet-shaped part of the active electrode is hollow, the hollow part is communicated with the suction hole of the insulating ceramic head, and the suction hole is communicated with the suction tube; the protruding lower edge of the active electrode protrudes out of the lower edge of the insulating ceramic head in the direction parallel to the sheet-shaped part. The active electrode and the return electrode form an integral current loop for large-area cutting and hemostasis. According to the utility model, the dredging tool can smoothly complete the dredging work, and can cut and stop bleeding under the condition of not switching energy modes, so that the cutting work is finer and more efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, concretely relates to a plasma operation electrode. BACKGROUND

[0002] With the development of modern medical technology, low temperature plasma knife resection is applied in clinic, which is mainly used for tonsillectomy, adenoidectomy, turbinate hypertrophy, palatopharyngeal plasty, nasal benign tumor, vocal cord polyp, early glottic carcinoma, pharyngeal neoplasm and tumor in otolaryngology.

[0003] A typical knife head commonly used in tonsil surgery basically has the structure as shown in the figure Figure 1 The active electrode adopts a plurality of electrode wires, is wrapped with an insulating ceramic seat outside, is then assembled at the end of a metal return electrode, the suction hole is arranged on the insulating ceramic seat, the liquid supply channel is arranged between the metal return electrode and the insulating ceramic seat, physiological saline is conveyed between the active electrode and the return electrode through the liquid supply channel during work, the active electrode and the return electrode are powered to form a loop, and then plasma used for surgery is generated, and the tissue cut by surgery is sucked away from the suction hole. But this structure still needs to be improved, specifically, since the suction hole is arranged directly behind the active electrode, once the suction hole is blocked by too much accumulated tissue, the suction hole cannot be smoothly dredged due to the blockage of the active electrode, in addition, during the cutting process, hemostasis is often involved, but the current structure needs to be switched from the cutting mode to the hemostasis mode to achieve hemostasis at the target position, thereby prolonging the operation time, so an improved electrode is needed to perform more delicate and efficient tonsil surgery. CONTENT

[0004] The utility model aims at providing a plasma operation electrode to solve the problems that the knife head used for tonsil surgery is easy to block the suction hole, and the mode switching process for hemostasis delays the operation time.

[0005] The technical scheme for solving the above technical problem of the utility model is as follows:

[0006] A plasma operation electrode comprises a knife head, a knife rod and a handle connected in sequence, the knife head comprises an insulating ceramic head, a return electrode and an active electrode arranged at the front end of the insulating ceramic head, the end of the handle is connected with a suction pipe, and the suction pipe is communicated with a suction hole arranged on the insulating ceramic head.

[0007] The active electrode comprises a sheet-shaped part and a protruding lower edge, the protruding lower edge is hollow between the sheet-shaped part and the protruding lower edge, the middle part of the sheet-shaped part is hollow, the hollow position is coincided with the suction hole, and the protruding lower edge protrudes from the lower edge of the insulating ceramic head along the direction parallel to the sheet-shaped part.

[0008] The return electrode comprises a first electrode arranged on the top of the insulating ceramic head and a second electrode arranged on the bottom of the insulating ceramic head, and the second electrode has a smaller area than the first electrode.

[0009] Preferably, the surface of the sheet-shaped part is provided with a plurality of recesses and / or hollows.

[0010] Preferably, the return electrode is externally provided with an external insulation layer.

[0011] Preferably, the first electrode is uniformly provided with a plurality of drip holes in the radial direction, and the second electrode is uniformly provided with a plurality of drip holes in the axial direction.

[0012] Preferably, the end of the handle is further connected with a connector connected with the plasma main machine.

[0013] Preferably, the protruding lower edge has a U-shaped structure or a V-shaped structure.

[0014] The utility model has the following beneficial effects:

[0015] The active electrode on the tool bit adopts an integrated wire sheet structure, the active electrode is hollow in the middle, the suction hole is located at the rear of the hollow part, therefore, the front end of the suction hole is not shielded, when the blockage occurs, the dredging tool can smoothly extend into the suction hole, and has a larger activity space, therefore, the dredging work can be completed more quickly.

[0016] The return electrode comprises a first electrode with a larger area of the top surface and a second electrode with a smaller area of the bottom surface, and the protruding lower edge of the active electrode protrudes from the lower edge of the insulating ceramic head, under a specific angle, the protruding lower edge and the second electrode contact the tonsil to be cut, and the first electrode does not contact the tonsil, therefore, an electric current loop is formed between the protruding lower edge and the second electrode, at this time, the protruding lower edge performs efficient cutting work, and the second electrode provides coagulation work of the cutting surface (because the area is smaller, the heat is higher, and the coagulation effect is realized), can realize cutting and hemostasis at the same time without switching the energy mode, and the cutting work is more delicate and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a tool bit structure diagram of a plasma surgical electrode in the prior art;

[0018] Figure 2 is a whole structure diagram of a plasma surgical electrode of the utility model;

[0019] Figures 3a to 5 is a partial enlarged view of the tool bit of the plasma surgical electrode of the utility model;

[0020] Figure 6is a cross-sectional view of the cutting head of the plasma surgical electrode.

[0021] Figures 1 to 6 The reference signs shown in the drawings are respectively represented as: cutting head 1, active electrode 11, sheet-shaped part 111, protruding lower edge 112, recessed part 113, hollow part 114, insulating ceramic head 12, return electrode 13, first electrode 131, second electrode 132, external insulation layer 14, knife rod 2, suction hole 21, infusion hole 22, handle 3, suction tube 4, infusion tube 5, connector 6. DETAILED DESCRIPTION

[0022] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Please refer to Figure 2 The present embodiment relates to a kind of plasma surgical electrodes, the electrode is particularly suitable for tonsil cutting or adenoid volume reduction surgery, realize the dual function of high-efficiency cutting and instant hemostasis by unique design, while ensuring the operation convenience and safety during surgery. The following is to describe the detailed implementation of the surgical electrode.

[0024] The plasma surgical electrode is composed of cutting head 1, knife rod 2, handle 3 and connector 6 connected to the suction tube 4 at the end of handle 3, infusion tube 5.The stable connection between each component is realized by precise manufacturing process, to ensure the stability and reliability during surgery.

[0025] Cutting head 1 is the core component of the entire surgical electrode, and its design directly affects the efficiency and effect of surgery.Cutting head 1 includes active electrode 11, insulating ceramic head 12, return electrode 13 and external insulation layer 14.Active electrode 11 adopts special wire sheet structure, one-piece, both ensure enough strength, and have good conductivity and plasma generation capacity.

[0026] Refer to Figures 3a-6The active electrode 11 is specifically divided into a sheet-shaped part 111 and a protruding lower edge 112. The sheet-shaped part 111 is located on the front surface of the insulating ceramic head 12, and is designed uniquely in shape with a hollow middle part, which not only reduces the weight of the electrode, but also enables the suction hole 21 to be exposed unobstructed at the front end. The suction hole 21 is connected to the channel in the knife rod 2, and ultimately connected to the suction tube 4, realizing the effective suction of tissue debris and blood during the operation. The sheet-shaped part 111 is also provided with a plurality of recessed parts 113 or hollow parts 114 around the periphery, which enables the sheet-shaped part 111 to generate more sharp edges when forming plasma, thereby improving cutting efficiency.

[0027] The protruding lower edge 112 protrudes from the lower edge of the insulating ceramic head 12, and is designed in a U-shaped or V-shaped shape with a sharp front end, which is also conducive to efficiently forming a large amount of plasma. The protruding lower edge 112 and the sheet-shaped part 111 jointly constitute the overall structure of the active electrode 11, and can function separately or jointly during the operation.

[0028] The insulating ceramic head 12 serves as a carrier for the active electrode 11 and the return electrode 13, and has good insulation and high temperature resistance, which can ensure safety during the operation. The front surface of the insulating ceramic head 12 is smooth and flat, which facilitates full contact with the operation site and improves the operation effect.

[0029] The return electrode 13 is embedded in the rear end of the insulating ceramic head 12, and includes a first electrode 131 with a large top area and a second electrode 132 with a small bottom area. The first electrode 131 and the second electrode 132 are respectively connected to the plasma main machine through wires to form a current loop. During the operation, the radio frequency energy generated between the active electrode 11 and the return electrode 13 can excite plasma, thereby realizing the functions of cutting and hemostasis.

[0030] In order to further improve the safety and efficiency during the operation, the return electrode 13 is further provided with an external insulating layer 14. The external insulating layer 14 is made of a material with good insulation performance, which can prevent current leakage during the operation and protect the safety of the doctor and the patient.

[0031] The knife rod 2 serves as a bridge connecting the knife head 1 and the handle 3, and its design is also crucial. The knife rod 2 is provided with a channel inside for connecting the suction hole 21 and the suction tube 4, ensuring that the suction function during the operation can be realized. At the same time, the knife rod 2 also has certain strength and rigidity, which can support the weight of the entire surgical electrode and maintain stable operation during the operation.

[0032] The handle 3 is the main component for the doctor to hold and operate the surgical electrode. The handle 3 is designed with ergonomic principles, with its shape and size carefully calculated and optimized to ensure that the doctor can comfortably hold and flexibly operate during the surgery. The end of the handle 3 is provided with a connection port for connecting the suction tube 4, the infusion tube 5, and the connector 6.

[0033] The suction tube 4 is connected to the channel in the knife rod 2 through the connection port at the end of the handle 3, and is used to suck away the tissue debris and blood during the surgery. The suction tube 4 is soft and elastic, which can easily bend along with the movement of the surgical electrode, ensuring the continuous and effective suction function.

[0034] The infusion tube 5 is also connected to the infusion hole 22 at the knife head 1 through the connection port at the end of the handle 3. During the surgery, the doctor can drip physiological saline or other liquid medicine to the surgical site through the infusion tube 5 to keep the surgical site moist and clean, which also helps to reduce bleeding and pain during the surgery. The infusion hole 22 is evenly arranged in 3 on the first electrode 131 in the radial direction, and in 2 on the second electrode 132 in the axial direction, which can ensure the uniform distribution of the liquid medicine and improve the infusion effect.

[0035] The connector 6 is the connecting component between the surgical electrode and the plasma host. The design of the connector 6 conforms to international standards, which can ensure the stable connection and signal transmission between the surgical electrode and the plasma host. During the surgery, the doctor can adjust the output intensity and frequency of the radio frequency energy through the plasma host to meet different surgical needs.

[0036] In specific use, the doctor holds the handle 3 of the surgical electrode in hand, adjusts the angle and position of the surgical electrode, and fully contacts the active electrode 11 part of the knife head 1 with the surgical site. Then, the doctor starts the radio frequency energy output through the plasma host to excite the plasma. Under the action of the current loop formed between the active electrode 11 and the return electrode 13, the plasma can efficiently cut the tissue of the surgical site.

[0037] In the tonsillectomy surgery, the doctor can adjust the angle and position of the surgical electrode according to the surgical needs. When efficient and fine cutting is needed, the doctor can form a current loop between the protruding lower edge 112 and the second electrode 132, at this time the protruding lower edge 112 as the main cutting electrode can quickly cut the tissue of the surgical site. At the same time, the second electrode 132 as the return electrode can generate enough heat for hemostasis, so as to realize the effect of cutting and hemostasis at the same time without switching the energy mode.

[0038] In other angles, when the sheet-shaped part 111 and the protruding lower edge 112 are both in full contact with the target tissue, the doctor can cut them as a whole in a large area. At this time, the first electrode 131 and the second electrode 132 also form a current loop with the whole active electrode 11 as a whole, and jointly realize the cutting function. This design makes the surgical electrode flexible to adapt to different surgical needs, and improves the efficiency and effect of the surgery.

[0039] In the adenoid volume reduction surgery, the surgical electrode is used in a similar way to the tonsil cutting surgery. The doctor can also adjust the angle and position of the surgical electrode according to the surgical needs, and fully contact the sheet-shaped part 111 and the protruding lower edge 112 with the target tissue as a whole, and then cut in a large area. At this time, the first electrode 131 and the second electrode 132 also form a current loop with the whole active electrode 11 as a whole, and jointly realize the cutting function. During the cutting process, the doctor can also drip physiological saline or other liquid to the surgical site through the drip tube 5 to keep the surgical site moist and clean.

[0040] In addition, the surgical electrode of the embodiment also has the characteristics of easy to unblock. Since the middle part of the sheet-shaped part 111 of the active electrode 11 is hollow, and the suction hole 21 is located behind the hollow part, when the blockage occurs, the doctor can use the unblocking tool to extend from the suction hole 21 for unblocking. Since the front end of the suction hole 21 is not blocked by anything, the unblocking tool can smoothly reach the blocked part and clean it. At the same time, since the hollow design of the sheet-shaped part 111 increases the activity space, the unblocking work can be completed faster.

[0041] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A plasma surgical electrode, characterized in that, The utility model relates to a kind of plasma handpieces, including: Successively connected cutter head (1), cutter bar (2) and handle (3), the cutter head (1) includes insulating ceramic head (12), return electrode (13) and the active electrode (11) being arranged at the front end of insulating ceramic head (12), the end of the handle (3) is connected with suction pipe (4), the suction pipe (4) is communicated with suction hole (21) being arranged on insulating ceramic head (12); The active electrode (11) includes sheet part (111) and protruding lower edge (112), the protruding lower edge (112) is hollow between the sheet part (111), the sheet part (111) is hollow in middle part, and hollow position is coincided with the suction hole (21), the protruding lower edge (112) protrudes from the lower edge of the insulating ceramic head (12) in the direction parallel to the sheet part (111); The return electrode (13) includes first electrode (131) being arranged at the top of insulating ceramic head (12) and second electrode (132) being arranged at the bottom of insulating ceramic head (12), and the second electrode (132) has smaller area relative to the first electrode (131).

2. The electrosurgical electrode of claim 1, wherein, The surface of the sheet part (111) is provided with a plurality of recesses (113) and / or hollow parts (114).

3. The electrosurgical electrode of claim 1, wherein, The return electrode (13) is provided with an external insulating layer (14) outside.

4. The electrosurgical electrode of claim 1, wherein, The first electrode (131) is uniformly provided with a plurality of drip holes (22) along the radial direction, and the second electrode (132) is uniformly provided with a plurality of drip holes (22) along the axial direction, the end of the handle (3) is connected with drip pipe (5), and the drip pipe (5) is communicated with the drip holes (22).

5. The electrosurgical electrode of claim 1, wherein, The end of the handle (3) is also connected with connector (6), and the connector (6) is connected with the plasma main machine.

6. The electrosurgical electrode of claim 1, wherein, The shape of the protruding lower edge (112) is U-shaped structure or V-shaped structure.

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