Disposable radio frequency plasma scalpel head for narrow window surgery

Abstract

The utility model discloses a disposable radio frequency plasma scalpel head for narrow window surgery. The disposable radio frequency plasma scalpel head comprises a handle, a scalpel head body, a water injection pipe and a power line, wherein the scalpel head body, the water injection pipe and the power line are respectively connected with the handle; the tool bit body comprises a tool body installed on the handle, an electrode base installed at the front end of the tool body, an electrode body installed on the electrode base and an electrode insulating sleeve arranged on the electrode body in a sleeving mode. The power line is electrically connected with the electrode body and the knife body. When the front end of the electrode body extends outwards, the thickness is gradually reduced to form a cutting edge shape, and the tail end of the electrode body is completely attached to the end face of the matched position of the electrode base. The electrode body is used for stripping soft tissues and performing excision ablation treatment on minimal lesions in narrow positions, so that the problems of weak cutting energy, long operation time, poor hemostatic effect, limited working electrode angle and incapability of realizing fine cutting in the field of the conventional narrow window surgical knife head are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plasma scalpels, in particular to a disposable radio frequency plasma scalpel head used for narrow window surgical operations. Background Art

[0002] Surgery with narrow visual windows, such as otolaryngology, rhinology, thyroid, and joint surgeries (such as the temporomandibular joint), has narrow surgical windows and very high requirements for surgical operation. Taking temporomandibular joint surgery as an example, the disposable radiofrequency plasma blade currently used for temporomandibular joint surgery has a needle-shaped working electrode with a thin diameter and a relatively short length. It has the problems of weak cutting energy and low cutting efficiency, resulting in generally longer operation time. At the same time, because the electrode is a needle-shaped structure, the hemostatic area and strength are limited, and the hemostatic effect is poor. Because of the zero-degree linear needle-shaped working electrode design, the working angle is limited, and the cutting and ablation easily penetrates the joint capsule, and the fine and smooth cutting and ablation repair of the joint capsule surface cannot be performed.

[0003] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a disposable radio frequency plasma surgical blade head for narrow visual window surgical operations, which is convenient for application in narrow visual window surgical operations.

[0005] The technical solution of the utility model is as follows: a disposable radio frequency plasma surgical blade for narrow window surgery is provided, comprising: a handle, a blade body, a water injection pipe, and a power cord respectively connected to the handle; the blade body comprises: a blade body installed on the handle, an electrode base installed at the front end of the blade body, an electrode body installed on the electrode base, and an electrode insulating sleeve sleeved on the electrode body; the electrode is a working electrode, and the blade body is a return electrode; the power cord is electrically connected to the electrode body and the blade body respectively; a water outlet channel is provided on the surface of the blade body near the electrode base, and the water outlet channel is connected to the water injection pipe; while the front end of the electrode body extends outward, the thickness gradually decreases to form a cutting edge shape.

[0006] Furthermore, the tail end of the electrode body is completely fitted with the end surface of the electrode base, ensuring that the overall structure is more stable. Through the principle of tip discharge, the edge of the electrode body is more likely to excite energy and achieve rapid cutting.

[0007] Furthermore, the width direction of the front end of the electrode body presents a waisted structure that gradually narrows from wide, providing a larger coagulation area for the head end of the electrode body, thereby achieving precise hemostasis.

[0008] Furthermore, the outer side of the electrode body is provided with a certain angle, and the range of the angle is 20-70 degrees. In a preferred solution, the range of the angle is 45-65 degrees. Taking the application in narrow window surgery as an example, the utility model is not easy to pierce the joint capsule when contacting and cutting with tissues, and the cutting is smooth. Resection and ablation treatment can also be performed in narrow space locations, making the surgery faster and more convenient.

[0009] Furthermore, the disposable radio frequency plasma surgical blade head for narrow window surgery also includes: an insulating tube sleeved on the blade body, and the insulating tube does not cover the front end of the blade body and the water outlet channel.

[0010] Furthermore, the inner side of the electrode body is in the shape of a ski-jump take-off runway.

[0011] Furthermore, the handle includes: a grip, a front cover and a rear cover respectively connected to the grip, the cutter head body is inserted into the front cover, and the water injection pipe and the power cord are passed through the rear cover.

[0012] Furthermore, the knife body is a stainless steel tube.

[0013] By adopting the above scheme, the utility model provides a disposable radiofrequency plasma surgical blade head for narrow window surgery, wherein the electrode body of the blade head body is used for stripping soft tissue and performing excision and ablation treatment on tiny lesions in narrow locations.

[0014] Compared with the existing working electrode, which has a needle-shaped structure with a thinner diameter and a relatively short length, there are problems of weak cutting energy and low cutting efficiency, resulting in generally longer operation time; the utility model adopts an electrode body whose front end extends outward while the thickness gradually decreases to form a cutting edge shape. According to the tip discharge principle, the edge of the electrode body of the utility model is more easily stimulated to excite energy, the cutting energy is concentrated and strong, and rapid cutting can be achieved, which can effectively save operation time.

[0015] Compared with the existing electrode body, which has a needle-like structure, the hemostatic area and strength are limited, and the hemostatic effect is poor;

[0016] While the front end of the electrode body of the utility model extends outward, the width direction of the front end of the electrode body presents a waisted structure that changes from wide to narrow, providing a larger coagulation area for the head end of the electrode body and can effectively provide a larger hemostatic area, so that the hemostatic strength can be greatly improved and the hemostatic effect is significant.

[0017] Moreover, the existing electrode body is designed with a zero-degree straight needle-shaped working electrode, so the working angle is limited, and cutting and ablation are easy to penetrate the joint capsule, and fine and smooth cutting and ablation repair treatment of the joint capsule surface cannot be performed; the outer side of the electrode body of the utility model is provided with a certain angle, and the angle range is 20-70°. The utility model is not easy to penetrate the joint capsule when cutting in contact with the tissue, and the cutting is smooth, which is convenient for fine and smooth cutting and ablation. The product of the utility model can be used to strip soft tissue, realize fast and accurate cutting of tissue in a narrow position, and realize the function of efficient coagulation, which can greatly facilitate the application in narrow window surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A magnified image of area A;

[0020] Figure 3 for Figure 1 A cross-sectional view of a tool head body according to an embodiment. DETAILED DESCRIPTION

[0021] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] See also Figure 1-Figure 3 , this embodiment provides a disposable radio frequency plasma surgical blade for narrow window surgery, including: a handle, a blade body 10 connected to the handle, a water injection pipe 11, and a power cord 12; the blade body 10 includes: a blade body 17 installed on the handle, an electrode base 13 installed at the front end of the blade body 17, an electrode body 14 installed on the electrode base 13, and an electrode insulating sleeve 15 sleeved on the electrode body 14; the electrode is a working electrode, and the blade body 17 is a return electrode; the power cord 12 is electrically connected to the electrode body 14 and the blade body 17 respectively; the surface of the blade body 17 near the electrode base 13 is provided with a water outlet channel 16, and the water outlet channel 16 is connected to the water injection pipe 11; while the front end of the electrode body 14 extends outward, the thickness gradually decreases to form a blade shape. In this embodiment, the tail end of the electrode body 14 is completely in contact with the end face of the matching position of the electrode base 13. Ensure that the overall structure is more stable, and through the principle of tip discharge, the edge of the electrode body is more likely to excite energy to achieve rapid cutting. In this embodiment, the blade body 17 is a stainless steel tube. The power line includes a positive electrode and a negative electrode, which are respectively connected to the blade body and the electrode body.

[0023] In this embodiment, the width direction of the front end of the electrode body 14 presents a waisted structure that gradually narrows from wide, providing a larger coagulation area for the head end of the electrode body 14, thereby achieving precise hemostasis and controlling the heat radiation area.

[0024] In this embodiment, the outer side of the electrode body 14 is provided with a certain angle, and the range of the angle is 20-70 degrees. When in contact with tissue, the friction between the electrode body 14 and the tissue can be effectively reduced, and the excision and ablation treatment can be performed even in a narrow space, thereby making the operation faster and more convenient.

[0025] In this embodiment, the disposable radio frequency plasma surgical blade head for narrow window surgery further includes: an insulating tube 18 sleeved on the blade body 17 , and the insulating tube 18 does not cover the front end of the blade body 17 and the water outlet channel 16 .

[0026] In this embodiment, the inner side of the electrode body 14 is in the shape of a ski-jump takeoff runway.

[0027] In this embodiment, the handle includes: a grip 19, a front cover 20 and a rear cover 21 respectively connected to the grip 19, the cutter body 10 is inserted into the front cover 20, and the water injection pipe 11 and the power cord 12 are passed through the rear cover 21.

[0028] Compared with the prior art, the utility model has the following advantages:

[0029] (1) The structure of the electrode body is derived from the shape of the automatic acceleration steep slope runway on the aircraft carrier deck. As it extends outward, the thickness gradually decreases to form a blade shape. The tail end of the electrode body and the end face of the electrode base are completely in contact with each other, ensuring that the overall structure is more stable. Through the principle of tip discharge, the edge of the electrode body is more likely to excite energy and achieve rapid cutting.

[0030] (2) The outer side of the electrode body is set at a certain angle, which can effectively reduce the friction between the electrode body and the tissue when it comes into contact with the tissue. It can also perform resection and ablation treatment in a narrow space, making the operation faster and more convenient.

[0031] (3) The width direction of the electrode body presents a waisted structure that gradually narrows from wide to narrow, providing a larger coagulation area for the head end of the electrode body, thereby achieving precise hemostasis and controlling the heat radiation area.

[0032] In summary, the utility model provides a disposable radiofrequency plasma surgical blade for narrow window surgery, wherein the electrode body of the blade body is used for stripping soft tissue and performing excision and ablation treatment on tiny lesions in narrow locations.

[0033] Compared with the existing working electrode, which has a needle-shaped structure with a thinner diameter and a relatively short length, there are problems of weak cutting energy and low cutting efficiency, resulting in generally longer operation time; the utility model adopts an electrode body whose front end extends outward while the thickness gradually decreases to form a cutting edge shape. According to the tip discharge principle, the edge of the electrode body of the utility model is more easily stimulated to excite energy, the cutting energy is concentrated and strong, and rapid cutting can be achieved, which can effectively save operation time.

[0034] Compared with the existing electrode body with a needle-like structure, the hemostatic area and strength are limited and the hemostatic effect is poor; while the front end of the electrode body of the utility model extends outward, the width direction of the front end of the electrode body presents a waisted structure that changes from wide to narrow, providing a larger coagulation area for the head end of the electrode body, thereby greatly improving the hemostatic strength and achieving a significant hemostatic effect.

[0035] Moreover, the existing electrode body is designed with a zero-degree straight needle-shaped working electrode, so the working angle is limited, and the cutting and ablation are easy to penetrate the joint capsule, and the fine and smooth cutting and ablation repair treatment of the joint capsule surface cannot be performed; the outer side of the electrode body of the utility model is provided with a certain angle, and the range of the angle is 20-70°. The utility model is not easy to penetrate the joint capsule when cutting in contact with the tissue, and the cutting is smooth, which is convenient for fine and smooth cutting and ablation. The product of the utility model has the function of quickly and accurately cutting soft tissue and achieving efficient coagulation.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A disposable radiofrequency plasma surgical blade for narrow window surgery, characterized in that: include: A handle, a cutter head body, a water injection pipe, and a power cord respectively connected to the handle; The cutter head body includes: a cutter body installed on the handle, an electrode base installed on the front end of the cutter body, an electrode body installed on the electrode base, and an electrode insulating sleeve sleeved on the electrode body; the electrode is a working electrode, and the cutter body is a return electrode; the power cord is electrically connected to the electrode body and the cutter body respectively; a water outlet channel is provided on the surface of the cutter body near the electrode base, and the water outlet channel is connected to the water injection pipe; while the front end of the electrode body extends outward, the thickness gradually decreases to form a cutting edge shape.

2. A disposable radiofrequency plasma surgical blade for narrow window surgery according to claim 1, characterized in that: The tail end of the electrode body and the end surface of the electrode base are completely fitted together.

3. A disposable radiofrequency plasma surgical blade for narrow window surgery according to claim 1, characterized in that: The front end of the electrode body has a waisted structure that changes from wide to narrow in width direction.

4. A disposable radiofrequency plasma surgical blade for narrow window surgery according to claim 1, characterized in that: The outer side of the electrode body is provided with a certain angle, and the range of the angle is 20-70 degrees.

5. The disposable radio frequency plasma surgical blade for narrow window surgery according to claim 1, characterized in that: Also includes: An insulating tube is sleeved on the blade body, and the insulating tube does not cover the front end of the blade body and the water outlet channel.

6. A disposable radiofrequency plasma surgical blade for narrow window surgery according to claim 1, characterized in that: The inner side of the electrode body is in the shape of a ski-jump takeoff runway.

7. A disposable radiofrequency plasma surgical blade for narrow window surgery according to claim 1, characterized in that: The handle comprises: a grip, a front cover and a rear cover respectively connected to the grip, the cutter head body is inserted into the front cover, and the water injection pipe and the power cord are passed through the rear cover.

8. The disposable radio frequency plasma surgical blade for narrow window surgery according to claim 1, characterized in that: The knife body is a stainless steel tube.

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