Electrosurgical electrode cutter bar assembly

Abstract

The utility model provides an electrode cutter bar assembly for electrosurgery, and belongs to the technical field of medical instruments. The electrosurgery electrode cutter bar assembly comprises a cutter bar, an electrode cutter head is arranged at one end of the cutter bar, the cutter bar is sleeved with a cutter bar insulation sleeve, the cutter bar and the section, away from the electrode cutter head, of the cutter bar insulation sleeve are jointly sleeved with a metal tube, and a crown spring assembly is fixed to the middle of the metal tube. The crown spring assembly comprises a crown spring sleeve and a crown spring, the crown spring sleeve is welded and fixed to one end of the crown spring, and the crown spring sleeve and the crown spring are assembled on the metal pipe together. A metal tube tail clamp is clamped and fixed at one end of the metal tube, a wire is welded on the metal tube tail clamp, and the wire is connected with a surgical electrode circuit. The crown spring assembly is structurally optimized, cleaning and sterilization are facilitated, the circuit board is electrically connected through the flexible lead, insulativity of a product is improved, and high-voltage resistance of the crown spring assembly is good.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to an electrode shank assembly for electro-surgical operations. Background Art

[0002] The surgical electrocautery currently used clinically has the characteristics of safe and convenient operation, fast cutting speed and good hemostatic effect. The electrocautery electrode is generally made of medical-grade stainless steel and has good biocompatibility. Since both the knife head and the shank can be telescoped and rotated, superficial and deep surgeries can be completed by the same handle, greatly improving the surgical efficiency. More and more hospitals have begun to use surgical electrocautery for surgical operations. The working principle of the surgical electrocautery is as follows: The surgical electrocautery uses high-frequency current with a specific frequency, specific waveform and specific load power curve to directly cut, cauterize and stop bleeding of biological tissues with different impedances and morphologies to achieve the surgical purpose.

[0003] At present, the existing surgical electrocautery generally connects the shank (including the outer insulation layer of the metal rod, the same below) and the metal tube with a crown spring and a drum spring. Among them, a groove is made at one end of the metal tube, and the crown spring is welded and fixed after assembly. The outer diameter of the shank and the crown spring are slidably matched to achieve radial fixation of the shank and adjust the drawing damping of the shank; or a ring made of materials such as rubber is assembled at one end of the metal tube to achieve radial fixation of the shank and adjust the drawing damping of the shank, and the drum spring is welded at the end of the shank and slidably matched with the inner wall of the metal tube to achieve electrical connection between the shank and the metal tube and adjust the sliding damping between the shank and the metal tube.

[0004] Although the overall structure of this existing surgical electrocautery is good, it is not conducive to cleaning and drying during the production process, and the assembly process is complex. At the same time, using soft materials such as rubber instead of the crown spring can solve problems such as inconvenient overall cleaning, but it is not conducive to ethylene oxide sterilization, bringing new risks to the product production process. In addition, the circuit board is directly connected to the metal tube through the contact piece, and the contact position will damage the insulation layer of the metal tube, resulting in low high-voltage resistance performance of the product.

[0005] Therefore, this application provides an electrode shank assembly for electro-surgical operations to solve the above technical problems. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is to provide an electrode shank assembly for electro-surgical operations to solve the problems that the existing surgical electrocautery is not easy to clean and dry, and the high-voltage resistance performance of the product is low.

[0007] To solve the above technical problems, the utility model provides the following technical solutions:

[0008] An electrosurgical electrode knife rod assembly comprises a knife rod, one end of which is provided with an electrode knife head, the knife rod is sleeved with a knife rod insulating sleeve, a metal tube is sleeved together on a section of the knife rod and the knife rod insulating sleeve away from the electrode knife head, and a crown spring assembly is fixed in the middle of the metal tube, the crown spring assembly comprises a crown spring sleeve and a crown spring, the crown spring sleeve is welded and fixed to one end of the crown spring, and the two are assembled together on the metal tube.

[0009] Optionally, a metal tube tail clip is clamped and fixed at one end of the metal tube, and a wire is welded to the metal tube tail clip, and the wire is connected to a surgical electrode circuit.

[0010] Optionally, the metal pipe tail clamp is a metal conductor and a semi-annular structure.

[0011] Optionally, a tail sleeve is mounted on the outer shell of one end of the metal tube to which the metal tube tail clip is clamped and fixed, and the tail sleeve covers the end of the metal tube and the metal tube tail clip.

[0012] Optionally, a metal tube insulating tube is provided on the outer sleeve of the metal tube, and one end of the metal tube insulating tube is butted against the position of the tail sleeve.

[0013] Optionally, the tail sleeve and the metal tube insulating tube completely cover the metal tube and form overall insulation together with the surgical electrode shell.

[0014] Optionally, a drum spring sleeve is welded and fixed to one end of the knife rod away from the electrode knife head, and a groove is provided on the inner side of the drum spring sleeve and is equipped with a drum spring.

[0015] Optionally, a crown spring assembly in the middle of the metal tube maintains communication between the metal tube and the outside of the handle.

[0016] Optionally, the crown spring sleeve is a circular ring structure adapted to the outer diameter of one end of the crown spring.

[0017] Optionally, the middle area of ​​the electrode blade gradually decreases toward both sides and the front end, and forms a cutting tip at the front end.

[0018] Compared with the prior art, the utility model has at least the following beneficial effects:

[0019] In the above scheme, by independently designing the crown spring assembly part, the crown spring part can be assembled to the tool rod before assembling the metal tube, thereby retaining the proper function of the crown spring and facilitating the cleaning and drying of the parts. At the same time, it is compatible with the welding method of a shorter tool rod or a drum spring closer to the tool head for completing the welding of the tool head.

[0020] Meanwhile, the device also increases the insulation of the product and improves its high-voltage resistance performance by moving the metal elastic part on the original circuit board to the end of the metal tube, connecting it with a flexible wire, and covering the end of the metal tube with an insulating material.

[0021] In addition, the middle area of the electrode blade tip of the device gradually decreases from both sides to the front end, and a cutting tip is formed at the front end, which is convenient for doctors to flexibly adjust the direction during the operation, so as to cut or process tissues more accurately, especially suitable for complex anatomical structures or operations in narrow spaces.

[0022] In summary, the device not only optimizes the structure of the crown spring assembly, which is beneficial to cleaning and sterilization, but also uses a circuit board to be electrically connected through a flexible wire, increasing the insulation of the product and making it have good high-voltage resistance performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention, and together with the specification are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0024] Figure 1 is a three-dimensional structural schematic diagram of an electrosurgical electrode blade rod assembly;

[0025] Figure 2 is a perspective structural schematic diagram of an electrosurgical electrode blade rod assembly;

[0026] Figure 3 is a three-dimensional structural schematic diagram of the electrosurgical electrode blade rod assembly after removing the metal tube;

[0027] Figure 4 is a structural disassembly schematic diagram of an electrosurgical electrode blade rod assembly;

[0028] Figure 5 is a structural schematic diagram of a crown spring assembly;

[0029] Figure 6 is a structural schematic diagram of a drum spring.

[0030] [Reference Signs]

[0031] 1. Blade rod; 2. Crown spring sleeve; 3. Crown spring; 4. Metal tube; 5. Metal tube tail clip; 6. Tail sleeve; 7. Metal tube insulating tube; 8. Drum spring sleeve; 9. Drum spring; 10. Blade rod insulating sleeve.

[0032] As shown in the figure, in order to clearly implement the structure of the embodiments of the present utility model, specific structures and devices are marked in the figure. However, this is only for schematic purposes and is not intended to limit the present utility model to this specific structure, device, and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments. Detailed implementation manners

[0033] The following will describe in detail a kind of electro-surgical electrode shank assembly provided by the present utility model in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present utility model.

[0034] It should be pointed out that in the specification, when referring to "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc., it indicates that the described embodiment may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe specific features, structures, or characteristics, implementing such features, structures, or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge scope of those skilled in the relevant art.

[0035] Generally, terms can be understood at least in part from their use in the context. For example, at least in part depending on the context, the term "one or more" used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, allowing for the existence of other factors that may not be explicitly described.

[0036] It can be understood that the meanings of "on...", "above...", and "overhead of..." in the present utility model should be interpreted in the broadest manner, such that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above..." or "overhead of..." not only means "above" or "overhead of" something, but also can include the meaning of being "above" or "overhead of" something without intervening features or layers therebetween.

[0037] In addition, spatial relative terms such as "under", "below", "lower part", "above", "upper part", etc. may be used in this text for convenience of description to describe the relationship between one element or feature and another or more elements or features, as shown in the accompanying drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device may be oriented in other ways, and the spatial relative descriptors used in this text may be similarly interpreted accordingly.

[0038] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, an embodiment of the present utility model provides an electrosurgical electrode shank assembly, including a shank 1, and an electrode knife head is provided at one end of the shank 1. Specifically, in this embodiment, the middle region of the electrode knife head gradually decreases towards both sides and the front end direction, and a cutting tip is formed at the front end, which is suitable for complex anatomical structures or operations in a narrow space, facilitating the doctor to flexibly adjust the direction during the operation, so as to more accurately cut or process tissues, and is conducive to improving the operation efficiency.

[0039] Meanwhile, a shank insulating sleeve 10 is sleeved on the shank 1, and a metal tube 4 is jointly sleeved on a section of the shank 1 and the shank insulating sleeve 10 away from the electrode knife head, and a crown spring assembly is fixed in the middle of the metal tube 4. As Figure 5 shown, the crown spring assembly includes a crown spring sleeve 2 and a crown spring 3. The crown spring sleeve 2 is a circular ring structure adapted to the outer diameter of one end of the crown spring 3, and is fixed to one end of the crown spring 3 by laser welding. Then, the crown spring assembly composed of the crown spring sleeve 2 and the crown spring 3 is jointly assembled onto the metal tube 4. The crown spring assembly in the middle of the metal tube 4 keeps the space inside the metal tube 4 and the outside of the handle in communication, so as to ensure good ethylene oxide sterilization effect.

[0040] One end of the metal tube 4 is fixedly clamped with a metal tube tail clip 5. The metal tube tail clip 5 is a metal conductor and a semi-circular structure, and a wire is welded to the metal tube tail clip 5. The wire is used to connect the surgical electrode circuit. Meanwhile, a tail sleeve 6 is sleeved outside one end of the metal tube 4 where the metal tube tail clip 5 is fixedly clamped. The tail sleeve 6 covers the end of the metal tube 4 and the metal tube tail clip 5 for insulation, further improving the safety and performance of the surgical electrode.

[0041] In addition, a metal tube insulating tube 7 is sleeved outside the metal tube 4. One end of the metal tube insulating tube 7 is butted with the position where the tail sleeve 6 is located, so that the tail sleeve 6 and the metal tube insulating tube 7 completely cover the metal tube 4, and together with the surgical electrode housing form an overall good insulation performance, and cooperate with the metal tube tail clip 5 to electrically connect to the circuit board through the wire, thereby improving the high-voltage resistance effect.

[0042] Specifically, asFigure 6 As shown, a drum spring sleeve 8 is fixedly welded to one end of the tool shank 1 away from the electrode tool tip. A groove is provided inside the drum spring sleeve 8, and a drum spring 9 is assembled therein.

[0043] The working principle of the present utility model is as follows: By independently designing the crown spring assembly part, the crown spring 3 part can be assembled onto the tool shank 1 before assembling the metal tube 4, retaining the due function of the crown spring 3, facilitating the cleaning and drying of parts, and at the same time being compatible with the welding method of a shorter tool shank for tool tip welding or a drum spring closer to the tool tip.

[0044] Meanwhile, the device also moves the metal elastic part on the original circuit board to the end of the metal tube 4, connects it with a flexible wire, and uses an insulating material to cover the end of the metal tube 4, increasing the insulation of the product and improving the high-voltage resistance performance of the product.

[0045] In summary, the device not only optimizes the structure of the crown spring assembly, facilitating cleaning and sterilization, but also uses a flexible wire for electrical connection of the circuit board, increasing the insulation of the product and making its high-voltage resistance performance good.

[0046] The present utility model covers any substitutions, modifications, equivalent methods, and solutions made within the essence and scope of the present utility model. For the public to have a thorough understanding of the present utility model, specific details are described in detail in the preferred embodiments of the present utility model. However, those skilled in the art can fully understand the present utility model without these detailed descriptions. Additionally, well-known methods, processes, procedures, components, and circuits are not described in detail to avoid unnecessary confusion to the essence of the present utility model.

[0047] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as within the protection scope of the present utility model.

Claims

1. An electrosurgical electrode rod assembly, comprising a rod, one end of which is provided with an electrode head, characterized in that: The knife rod is sleeved with a knife rod insulating sleeve, and a metal tube is sleeved together on a section of the knife rod and the knife rod insulating sleeve away from the electrode knife head, and a crown spring assembly is fixed in the middle of the metal tube. The crown spring assembly includes a crown spring sleeve and a crown spring, and the crown spring sleeve is welded and fixed to one end of the crown spring and assembled to the metal tube together.

2. The electrosurgical electrode rod assembly according to claim 1, characterized in that: A metal tube tail clip is clamped and fixed at one end of the metal tube, and a wire is welded to the metal tube tail clip, and the wire is connected to an electrode circuit for surgery.

3. The electrosurgical electrode rod assembly according to claim 2, characterized in that: The metal pipe tail clip is a metal conductor and has a semi-annular structure.

4. The electrosurgical electrode rod assembly according to claim 2, characterized in that: The outer shell of one end of the metal tube to which the metal tube tail clip is clamped and fixed is connected with a tail sleeve, and the tail sleeve covers the end of the metal tube and the metal tube tail clip.

5. The electrosurgical electrode rod assembly according to claim 4, characterized in that: The outer sleeve of the metal tube is provided with a metal tube insulating tube, and one end of the metal tube insulating tube is butted with the position of the tail sleeve.

6. The electrosurgical electrode rod assembly according to claim 5, characterized in that: The tail sleeve and the metal tube insulating tube completely cover the metal tube and form overall insulation together with the surgical electrode shell.

7. The electrosurgical electrode rod assembly according to claim 1, characterized in that: A drum spring sleeve is welded and fixed to one end of the knife rod away from the electrode knife head. A groove is arranged on the inner side of the drum spring sleeve and a drum spring is assembled thereon.

8. The electrosurgical electrode rod assembly according to claim 1, characterized in that: The crown spring assembly in the middle of the metal tube keeps the metal tube in communication with the outside of the handle.

9. The electrosurgical electrode rod assembly according to claim 1, characterized in that: The crown spring sleeve is a circular ring structure adapted to the outer diameter of one end of the crown spring.

10. The electrosurgical electrode rod assembly according to claim 1, characterized in that: The middle area of ​​the electrode blade gradually decreases toward both sides and the front end, and forms a cutting tip at the front end.

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