Oblique-edge knife-shaped electrode

Abstract

The knife-shaped electrode comprises a tail portion, a handle portion and an inclined blade portion, the tail portion is provided with a power transmission socket used for being connected with an external high-frequency power source, and therefore input and transmission of electric energy are achieved. The handle part is provided with a power connection plug which can be inserted into the tail part in a detachable connection mode, and stable electrical connection is achieved. And the handle part is made of a transparent non-metal material, so that the requirement on the electrical insulation property is met, and an operator can conveniently observe the internal structure and the liquid flowing condition during liquid absorption. The electrode integrates the functions of electric energy transmission, precise cutting, tissue solidification, liquid adsorption and the like, achieves efficient treatment on tissues in a high-precision operation, and has a wide clinical application prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, and particularly relates to a bevel edge knife-shaped electrode, which is especially suitable for high-frequency cutting, coagulation and liquid suction operations. BACKGROUND

[0002] In the field of medical surgery, electrosurgical equipment has become an indispensable tool, especially in surgeries that require precise cutting and hemostasis. Existing electrosurgical electrodes usually adopt straight or round blade designs, which contact the body tissue with high-frequency voltage and current, and use the heat generated by the current to cut and coagulate the tissue. This technology meets the needs of cutting and hemostasis in surgery to some extent, especially in open surgery, and shows high efficiency and reliability. However, with the rapid development of minimally invasive surgery and precision surgery, the limitations of existing electrodes have gradually emerged.

[0003] One of the main shortcomings of existing electrodes is the lack of liquid suction function. In the process of surgery, tissue exudate is inevitable, especially in precision surgery, the presence of exudate will directly affect the clarity of the surgical field, and then affect the precision of the operation. Although the exudate can be removed by external suction tube or suction needle, this operation not only increases the complexity of the surgery, but also may cause the extension of the operation time and the inconvenience of the operation. Especially in some surgeries that require highly precise operation, frequent switching of tools or adjustment of suction equipment may interfere with the surgical procedure, and even increase the risk of surgery. In addition, the use of external suction equipment may also occupy the surgical space, further limiting the flexibility of surgical operation.

[0004] The main reason for these shortcomings is that the design concept of existing electrodes does not fully consider the demand for multifunctional integration in precision surgery. The design of traditional electrodes focuses more on the realization of cutting and hemostasis functions, and ignores the importance of other auxiliary functions in the surgical process. This single-function design may not be a problem in open surgery, but it is not perfect in minimally invasive surgery and precision surgery. In addition, the introduction of external suction equipment has solved some problems, but also brought new operation complexity and potential risks.

[0005] Therefore, it is of great practical significance and application value to develop a bevel edge knife-shaped electrode that integrates liquid suction function. SUMMARY

[0006] The purpose of the present application is to overcome at least one deficiency in the prior art, and to provide a bevel edge knife-shaped electrode that integrates functions such as electric energy transmission, precise cutting, tissue coagulation and liquid absorption, and realizes efficient processing of tissue in high-precision surgery, which has a wide clinical application prospect.

[0007] To achieve the above object, the application discloses a bevel blade electrode, which comprises a tail part, a handle part and a bevel blade part.

[0008] The handle part is provided with an electricity connection plug and can be detachably connected to the tail part to realize stable electrical connection.

[0009] The handle part is made of transparent non-metallic material, which meets the requirement of electrical insulation and is convenient for the operator to observe the internal structure and the liquid flow during liquid absorption.

[0010] Further, the handle part is internally provided with a delivery wire, one end of which is connected to the electricity connection plug and the other end of which extends to the front end of the handle part and forms a contact or a contact block, so as to ensure that the electric energy can be accurately delivered to the bevel blade part.

[0011] Further, the handle part is internally provided with a liquid absorption channel, which penetrates through the handle part and extends to the front end to finally form a liquid absorption port which is in communication with the outside. Correspondingly, the side surface of the handle part protrudes a liquid absorption interface which is in communication with the liquid absorption channel, and the liquid absorption interface is connected to the external liquid absorption equipment.

[0012] More specifically, the position of the liquid absorption port is designed to be substantially flush with the outer edge of the bevel blade part or slightly lower than the outer edge by 0.5 to 1 mm, so as to effectively collect the tissue exudate during the operation and not to interfere with the cutting and coagulation functions of the operation site.

[0013] Further, the bevel blade part is made of conductive metal material and is mounted at the front end of the handle part through a detachable clamping structure. The clamping structure enables the bevel blade part to be in full contact with the contact or contact block which extends to the front end of the handle part, so as to realize electrical conduction and effective transmission of high-frequency electric energy.

[0014] Further, the bevel blade part adopts a knife-shaped bevel blade design, which can realize precise cutting and coagulation of tissues under the action of high-frequency current and takes into account the protection requirements of the surrounding tissues in design.

[0015] Further, the delivery wire is made of high-conductivity material to ensure the stability and reliability of current transmission.

[0016] In summary, the bevel blade electrode of the application realizes multiple functions such as high-frequency electric energy transmission, precise cutting, tissue coagulation and liquid absorption through the reasonable structural combination of the tail part, the handle part and the bevel blade part. The structure design is rigorous, the assembly is convenient, the maintenance is simple, the problem that the traditional electrode is affected by exudate in the operation process to affect the field of view and the operation precision can be effectively solved, and the bevel blade electrode has high practical value and promotion prospect.

[0017] The above-listed benefits are not exhaustive of all advantages. Other potential benefits and detailed technical implementations will be further disclosed in the embodiments or other description sections of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] Aspects of the present disclosure will become more fully understood from the detailed description and embodiments provided hereinafter and the accompanying drawings, in which the structures of the respective structures shown in the drawings are sometimes shown with exaggerated positions, sizes, and ranges, etc. In the drawings:

[0019] Figure 1 is a structural schematic diagram of an embodiment of the present disclosure.

[0020] Figure 2 is Figure 1 is an enlarged view of A in DETAILED DESCRIPTION

[0021] The present disclosure will be described with respect to the drawings in which several embodiments of the present disclosure are shown. It is to be understood that the present disclosure can be embodied in many different forms and is not limited to the embodiments described herein; in fact, these embodiments are intended to be illustrative only and to assist in understanding the scope of the present disclosure. It will also be appreciated that embodiments disclosed herein can be combined in various ways to provide additional embodiments.

[0022] It is to be understood that like numerals in the drawings represent like elements throughout the several embodiments. In the drawings, the sizes of certain features can be exaggerated for clarity.

[0023] It is to be understood that the phraseology and terminology used herein is for the purpose of description and not of limitation. All technical and scientific terms used herein are to be interpreted in the same manner as they would be interpreted by one of ordinary skill in the art. For the purposes of the present disclosure, the terms "a," "an," and "the" include singular and plural referents unless the context clearly dictates otherwise. For the purposes of the present disclosure, the terms "comprises," "comprising," "includes," "including," and the like can have the same meaning as "consists essentially of, "consists of, and the like. The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0024] The singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. The terms "comprises," "comprising," "includes," "including," and the like, as used herein, can have the same meaning as "consists essentially of, "consists of, and the like. The term "and / or" includes any and all combinations of one or more of the associated listed items. EMBODIMENTS

[0025] Reference will now be made to the drawings, in which reference numerals are used to refer to items of like function throughout the several figures. Figures 1 to 2The overall structure of the bevel blade electrode is composed of a tail part 1, a handle part 2 and a bevel blade part 3. The three parts are precisely combined through mechanical and electrical interfaces to form a medical electrode device that integrates high-frequency electric energy transmission, accurate cutting and coagulation of tissues and liquid absorption.

[0026] In a specific structure, the tail part 1 is the electrical input end of the electrode, and its core structure is a power transmission socket for connecting with an external high-frequency power supply to realize the input of electric energy. The tail part 1 is usually made of metal or high-strength engineering plastic to ensure that it has sufficient mechanical strength and electrical safety. The fixing method of the power transmission socket and the tail part main body can adopt conventional processes such as threaded connection, buckle connection or welding, and the specific design is determined according to actual needs. The main function of the tail part 1 is to stably transmit the electric energy of the external high-frequency power supply to the handle part 2, so the internal electrical connection part needs to be made of high-conductivity materials such as copper or copper alloy, and the safety in use is ensured through insulation treatment. The design of the tail part 1 also needs to consider the connection method with the handle part 2, which usually adopts a standardized mechanical interface to ensure the stability and convenience of the connection.

[0027] The handle part 2 is the core functional part of the electrode, which is made of transparent non-metallic materials such as polycarbonate or polymethyl methacrylate. Such materials not only meet the strict electrical insulation requirements, but also have good transparency, which is convenient for the operator to observe the internal structure and liquid flow state during the operation. One side of the handle part 2 is provided with a detachable power connection plug, which is connected with the power transmission socket of the tail part 1 through a standardized mechanical interface, so as to ensure that the high-frequency current can be stably transmitted to the handle part 2.

[0028] The handle part 2 is internally designed with a high-conductivity transmission line, one end of which is firmly connected with the power connection plug, and the other end extends to the front end of the handle part 2 and forms a contact or a contact block for conducting electric energy to the bevel blade part 3. The transmission line is usually made of copper or copper alloy, and its welding, fixing and insulation treatment are carried out according to existing processes to ensure the stability and reliability of current transmission. In addition, the handle part 2 is internally designed with a through-type liquid suction channel 4, which extends from the rear end to the front end of the handle part 2, and forms a liquid suction port 5 at the front end of the handle part 2. The position of the liquid suction port 5 is precisely designed, and the opening thereof is basically flush with the outer edge of the bevel blade part 3 or slightly lower than 0.5 to 1 millimeters, so as to ensure that the tissue exudate can be efficiently sucked and removed during the operation, while avoiding interference with the cutting and coagulation area. In the drawings of the present embodiment, it is slightly lower than the outer edge of the bevel blade part 3.

[0029] Corresponding to the suction port 5, the handle 2 side surface is also provided with a suction interface 6 for connecting external suction equipment. Through the action of external negative pressure, liquid can be quickly guided to the suction port 5 and discharged, thereby keeping the surgical field clear. The specific fluid dynamics design and manufacturing process of the suction channel 4 and the interface are all known to those skilled in the art, and will not be described in detail here.

[0030] The bevel blade part 3 is the functional execution part of the electrode, which is made of conductive metal material, such as stainless steel or tungsten alloy. The surface of the bevel blade part 3 is precisely machined to form a knife-shaped bevel, which is designed to achieve precise cutting and coagulation of target tissue under the action of high-frequency current, while protecting the surrounding tissue. The bevel blade part 3 is fixedly connected with the front end of the handle 2 through a detachable clamping structure, which can be designed in the form of elastic buckle or threaded locking, to ensure that the bevel blade part 3 and the contact or contact block extending to the front end inside the handle 2 are in full contact, thereby realizing stable transmission of high-frequency electric energy.

[0031] In the specific operation process, first, the power supply socket of the tail part 1 is connected with the external high-frequency power supply, and then the handle 2 is firmly inserted into the tail part 1 through the power supply plug, to ensure that the electric energy is transmitted from the outside to the inside of the handle 2. Then, the electric energy is conducted from the delivery line inside the handle 2 to the contact or contact block formed at the front end, and is stably transmitted to the bevel blade part 3 through the clamping structure. During the operation, the bevel blade part 3 implements precise cutting and coagulation of the target tissue under the action of high-frequency current, at the same time, the tissue exudate generated during the operation is quickly guided to the suction port 5 through the suction channel 4 inside the handle 2, and forms a closed suction circuit with the external suction device through the side suction interface 6, thereby keeping the surgical field clear. The mechanical connection, electrical transmission and liquid guiding technology involved in the above steps can be realized by those skilled in the art according to existing conventional technical means.

[0032] In this embodiment, some structural details and manufacturing processes are not disclosed in detail, such as the fixing method of the power supply socket and the main body of the tail part 1, the welding and insulation treatment of the delivery line, the fluid dynamics design of the suction channel 4, and the specific geometry and material selection of the clamping structure. These contents are all known to those skilled in the art or existing technology, so they do not need to be described in detail in this embodiment.

[0033] In summary, the oblique blade knife-shaped electrode provided by the embodiment realizes efficient and stable high-frequency electric energy transmission, accurate tissue cutting and coagulation, and timely absorption of surgical liquid through the precise combination of the tail part 1, the handle part 2, and the oblique blade part 3. The optimized configuration of each component in terms of material selection, structure design, and connection mode ensures that the electrode has excellent performance and stability during high-frequency surgery. At the same time, the modular and detachable design facilitates the cleaning, maintenance, and component replacement of the equipment, thereby prolonging the service life of the overall device. The various technical features and connection modes disclosed in the embodiment, except for some details, are all known to those skilled in the art. Through the above design, the oblique blade knife-shaped electrode has a wide application prospect in medical scenarios such as minimally invasive surgery and tumor resection, can significantly improve the accuracy and safety of surgery, and at the same time reduce the risk of postoperative complications.

[0034] While exemplary embodiments of the present disclosure have been described, it will be understood by those skilled in the art that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure in its essence. Therefore, all changes and modifications are included in the scope of protection of the present disclosure defined by the claims. The present disclosure is defined by the appended claims, and equivalents of these claims are also included.

Claims

1. A bevel-tip electrode characterized by, The blade electrode comprises a tail, a handle and a bevel blade, wherein the tail is provided with a power transmission socket for connecting with an external high-frequency power source to realize input and transmission of electric energy; The handle is provided with a power connection plug and can be detachably connected to the tail; The handle is made of transparent non-metallic material; The handle is internally provided with a transmission line, one end of which is connected to the power connection plug and the other end of which extends to the front end of the handle and forms a contact or a contact block to ensure that electric energy can be accurately transmitted to the bevel blade; The handle is internally further provided with a liquid suction channel which extends through the handle and extends to the front end to finally form a liquid suction opening which is in communication with the outside; correspondingly, the side surface of the handle extends a liquid suction interface which is in communication with the liquid suction channel to be connected and matched with an external liquid suction device; The position of the liquid suction opening is designed to be substantially flush with the outer edge of the bevel blade or 0.5-1 mm lower than the outer edge; The bevel blade is made of conductive metal material and is detachably installed at the front end of the handle by a clamping structure; the clamping structure enables the bevel blade to be in full contact with the contact or contact block which extends to the front end of the handle.

2. A bevel tip electrode as defined in claim 1, wherein The bevel blade is designed in a blade shape.

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