Positive and negative electrode integrated guide structure of resectoscope

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, especially relates to a positive and negative electrode integrated guiding structure of resectoscope. The utility model discloses a positive and negative electrode integrated guiding structure of resectoscope in the prior art needs positive and negative electrode single wiring troublesome and can cause the problem of entanglement, provides a positive and negative electrode integrated guiding structure of resectoscope, including sliding block, slide, positive lock head, positive pole and negative pole, the slide of sliding block is gone through, and the one end of positive lock head projects sliding block, still include the limiting piece in the bottom of sliding block, the slide of slide bottom slidingly connected has sliding conductive component, the positive lock head is fixed with positive conductive component, and the positive conductive component and sliding conductive component are in the limiting component together and are connected or contact positive pole and negative pole respectively in the same direction insulation limit. Through setting up metal locking casing and sliding conductive component guide positive and negative electrode circuit course and realize the final fixation of positive and negative electrode course through limiting piece, unify the circuit, make positive and negative electrode be in the same interface.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to an integrated positive and negative electrode guiding structure for an electrosurgical resection endoscope. Background Technology

[0002] Electrosurgical resection instruments are common minimally invasive surgical cutting instruments. They allow for visualization of the affected area via an endoscope, while electrodes are used to cut the affected area. Traditional electrosurgical resection instruments require separate wires for the positive and negative electrodes, which limits the surgical range and makes it easy for the different wires to become tangled, affecting the operation.

[0003] For example, a Chinese invention patent discloses a biting endoscope system with negative pressure suction [Application No.: CN201920571789.4]. This invention includes an outer sheath, a biting device, a camera device, and a negative pressure suction device. The biting device includes an operating component, a drive rod, and a biting component connected in sequence. The biting component and drive rod can be inserted from the rear end of the outer sheath and extend from the front end of the outer sheath. The operating component is connected and fixed to the rear end of the outer sheath. The biting component includes an upper biting surface and a lower biting surface. Biting teeth are distributed around the inner front end of both the upper and lower biting surfaces. The biting teeth can generate biting force on the object being bitten after the upper and lower biting surfaces close relative to each other to perform a biting operation. The operating component is adapted to trigger the biting operation. After the upper and lower biting surfaces close relative to each other, a space is formed to accommodate the target object, which is the part of the object being bitten that has been cut off after the biting operation. The camera device is located at the front end of the outer sheath. The negative pressure suction device is adapted to suck the target object out of the body by negative pressure suction.

[0004] While this invention can fundamentally avoid the risks of obturator nerve reflex problems, tissue burning, and tumor tissue floating and implantation, the positive and negative electrodes are still connected through different interfaces, which does not solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing an integrated guiding structure for the positive and negative electrodes of an electrosurgical resection mirror.

[0006] This utility model includes a slider, a slide rod, a positive electrode lock head, a positive electrode needle, and a negative electrode needle; the slide rod passes through the slider, and one end of the positive electrode lock head extends out of the slider. The feature is that it also includes a limiting member located at the bottom of the slider; a sliding conductive component is slidably connected to the bottom of the slide rod; the positive electrode lock head is fixed with the positive electrode conductive component; the positive electrode conductive component and the sliding conductive component are both insulated and limited within the limiting member and are respectively connected to or in contact with the positive electrode needle and the negative electrode needle.

[0007] Preferably, the positive electrode conductive component includes a metal locking housing that covers the positive electrode lock head, a vertically downward metal rod inserted into the metal locking housing, and a slider having an installation space for accommodating the metal locking housing and the metal rod. The metal rod is directly or indirectly limited by a limiting member and contacts the positive electrode needle.

[0008] Preferably, the sliding conductive component includes a conductive contact rod and an extension, the conductive contact rod and the slide rod are slidably connected, one end of the extension is connected to the conductive contact rod, and the other end is limited by a limiting member and contacts the negative electrode needle.

[0009] Preferably, the limiting component includes an insulating sleeve and a conductive ring fixedly connected, the insulating sleeve limiting the positive electrode needle and the negative electrode needle, the metal rod being inserted into the conductive ring for limiting, and the conductive ring contacting the positive electrode needle.

[0010] Preferably, the conductive ring includes an insulating hole, and one end of the extension is inserted into the insulating hole and contacts the negative electrode needle.

[0011] Preferably, the extension includes a spring, and the conductive contact rod and the negative electrode needle are electrically connected through the spring.

[0012] Preferably, the conductive ring is provided with a metal connection point, the spring passes through the insulating hole, and the metal connection point is in contact with or fixedly connected to the positive electrode needle.

[0013] Preferably, it also includes a locking button, the metal locking housing includes a first limiting hole, the positive locking head includes a second limiting hole, and the locking button pushes the metal locking housing to achieve relative displacement between the first limiting hole and the second limiting hole.

[0014] Preferably, the metal rod is provided with a positioning screw tip, and the metal locking housing is provided with a positioning thread. The positioning screw tip and the positioning thread cooperate to fix the positive terminal lock head and the metal locking housing.

[0015] Preferably, the side of the conductive contact rod that contacts the slide bar is an arc surface that conforms to the shape of the slide bar.

[0016] Compared with existing technologies, the advantages of this utility model are: This invention uses a metal locking housing to guide and orient the positive conductive line of the electrode wire in contact with the positive locking head. At the same time, it guides and changes the direction of the negative line through a sliding conductive component and finally fixes the direction of the positive and negative lines through a limiting component. This unifies the lines and puts the positive and negative lines at the same interface, avoiding the trouble of having to plug in the positive and negative lines separately. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the electrosurgical resection mirror of this utility model; Figure 2 for Figure 1 Another perspective view; Figure 3 for Figure 2 AA section view; Figure 4 for Figure 1 Partial Explosion Diagram Figure 5 for Figure 1 Further exploded view; Figure 6 for Figure 1 Another perspective illustration; Figure 7 for Figure 6 AA section view In the diagram: slider 1, slider 2, positive electrode lock head 3, positive electrode needle 4, negative electrode needle 5, limiting component 6, insulating sleeve 61, sliding conductive component 7, positive electrode conductive component 8, metal locking housing 81, metal rod 82, installation space 11, conductive contact rod 71, extension 72, conductive ring 83, insulating hole 831, spring 721, metal connection point 832, locking button 9, first limiting hole 811, second limiting hole 31, positioning screw tip 821, positioning thread 812, arc surface 711. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] This utility model relates to an integrated guiding structure for the positive and negative electrodes of an electrosurgical resection mirror, such as... Figure 1-7 As shown, it includes a slider 1, a slider 2, a positive locking head 3, a positive needle 4, and a negative needle 5; the slider 2 passes through the slider 1, and one end of the positive locking head 3 extends out of the slider; it also includes a limiting member 6 located at the bottom of the slider 1, a sliding conductive component 7 slidably connected to the bottom of the slider 2, and a positive conductive component 8 fixed to the positive locking head 3. The positive conductive component 8 and the sliding conductive component 7 are insulated and limited in the same direction within the limiting member 6 and are respectively connected to or in contact with the positive needle 4 and the negative needle 5.

[0020] In use, referring to the prior art, the electrode wire is passed from the front end into the slider 1 and then limited by the positive locking head 3. The positive locking head 3 is made of metal and guides the current to one side through the positive conductive component 8. At the same time, the slider 2, as part of the negative circuit, is guided by the sliding conductive component 7 in the same direction as the positive conductive component 8. Then, they are limited by the limiting component 6 and connected to the positive needle 4 and the negative needle 5 respectively.

[0021] Preferred, such as Figure 3 , 4 As shown, the positive electrode conductive component 8 includes a metal locking housing 81 that covers the positive electrode lock head 3, and a vertically downward metal rod 82 is inserted into the metal locking housing 81, as shown. Figure 7 As shown, the slider 1 is provided with an installation space 11 for accommodating the metal locking housing 81 and the metal rod 82. The metal rod 82 is directly or indirectly limited by the limiting member 6 and contacts the positive electrode needle 4.

[0022] Preferred, such as Figure 3 As shown, the sliding conductive component 7 includes a conductive contact rod 71 and an extension 72. The conductive contact rod 71 and the slide rod 2 are slidably connected. One end of the extension 72 is connected to the conductive contact rod 71, and the other end is limited by the limiting member 6 and contacts the negative electrode needle 5.

[0023] Preferably, to further stabilize the contact between the sliding conductive component 7 and the positive conductive component 8 and the positive electrode needle 4 and the negative electrode needle 5, such as... Figure 4 , 5 As shown, the limiting component 6 includes an insulating sleeve 61 and a conductive ring 83 that are fixedly connected. The insulating sleeve 61 limits the positive electrode needle 4 and the negative electrode needle 5. The metal rod 82 is inserted into the conductive ring 83 for limiting. The conductive ring 83 contacts the positive electrode needle 4.

[0024] Preferably, in order to further isolate the positive and negative circuits, such as Figure 5 As shown, the conductive ring 83 includes an insulating hole 831, and one end of the extension 72 is inserted into the insulating hole 831. The insulation method can be to attach an insulating material inside the hole.

[0025] Furthermore, to prevent the conductive contact rod 71 from jumping and the negative electrode needle 5 from becoming unstable when the slider 1 slides, the extension 72 includes a spring 721. The conductive contact rod 71 and the negative electrode needle 5 are electrically connected through the spring 721, and a stable connection is achieved through the spring 721. Of course, the spring is made of metal and is conductive.

[0026] Preferred, such as Figure 3 As shown, the conductive ring 83 is provided with a metal connection point 832, the spring 721 passes through the insulating hole 831, and the metal connection point 832 is in contact with the positive electrode needle 4 (such as directly stacked on the positive electrode needle 4 for conductive contact) or fixedly connected (such as by welding).

[0027] Furthermore, such as Figure 5-7 As shown, it also includes a locking button 9. The metal locking housing 81 includes a first limiting hole 811, and the positive electrode lock head 3 includes a second limiting hole 31. When the locking button 9 is pressed, it pushes the metal locking housing 81 to achieve relative displacement of the first limiting hole 811 and the second limiting hole 31. This design is mainly for the two to work together to clamp the electrode wire inserted during use.

[0028] Preferred, such as Figure 7 As shown, the metal rod 82 is provided with a positioning screw tip 821, and the metal locking housing 81 is provided with a positioning thread 812. The positioning screw tip 821 and the positioning thread 812 cooperate to fix the positive terminal lock head 3 and the metal locking housing 81.

[0029] Preferred, such as Figure 3 , 5As shown, the conductive contact rod 71 has an arc surface 711 that conforms to the shape of the slide rod 2 on one side to further improve the reliability of the sliding connection.

[0030] The working principle of this embodiment is as follows: In use, referring to existing technology, the electrode wire is threaded from the front end into the slider 1, and then limited by the positive electrode lock 3 in conjunction with the metal locking housing 81. The positive electrode lock 3 is made of metal and guides the current to one side through the positive electrode conductive component 8. Simultaneously, the slider 2, as part of the negative electrode circuit, is guided in the same direction as the positive electrode conductive component 8 by the sliding conductive component 7. Then, both are limited by the limiting component 6 and connected to the positive electrode needle 4 and the negative electrode needle 5 respectively. Specifically, the current flow is as follows: starting from the positive electrode needle 4, through the metal connection point 832, sequentially through the conductive ring 83, the metal rod 82, the locking housing 81 and the positive electrode lock 3, the already locked inserted electrode wire, the slider 2, the conductive contact rod 71, the spring 721, and the negative electrode needle 5. The positive electrode needle 4 and the negative electrode needle 5 are as follows... Figure 3 , 7 As shown, the conductive ring 83 is fixed above the insulating sleeve 61 and the sliding conductive component 7 and the positive conductive component 8 are fixed to guide the current direction. In this way, a plug with both positive and negative terminals can be inserted into the same interface, that is, under the limiting component 6, to achieve the effect of connecting one wire to both positive and negative terminals at the same time.

[0031] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0032] Although this document frequently uses terms such as slider 1, slider 2, positive electrode lock head 3, positive electrode needle 4, negative electrode needle 5, limiting component 6, insulating sleeve 61, sliding conductive component 7, positive electrode conductive component 8, metal locking housing 81, metal rod 82, mounting space 11, conductive contact rod 71, extension 72, conductive ring 83, insulating hole 831, spring 721, metal connection point 832, locking button 9, first limiting hole 811, second limiting hole 31, positioning screw tip 821, positioning thread 812, and arc surface 711, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. An integrated positive and negative electrode guiding structure for an electrosurgical resection microscope, comprising a slider (1), a slide rod (2), a positive electrode lock head (3), a positive electrode needle (4), and a negative electrode needle (5); wherein the slide rod (2) passes through the slider (1), and one end of the positive electrode lock head (3) extends out of the slider (1), characterized in that: It also includes a limiting component (6) fixed to the bottom of the slider (1), a sliding conductive component (7) slidably connected to the bottom of the slider (2), a positive conductive component (8) fixed to the positive locking head (3), and the positive conductive component (8) and the sliding conductive component (7) are in the same direction of insulation and limiting within the limiting component (6) and are respectively connected to or in contact with the positive needle (4) and the negative needle (5).

2. The integrated positive and negative electrode guiding structure of the electrosurgical resection mirror as described in claim 1, characterized in that: The positive electrode conductive component (8) includes a metal locking housing (81) that covers the positive electrode lock head (3). The metal locking housing (81) is inserted with a vertically downward metal rod (82). The slider (1) is provided with an installation space (11) for accommodating the metal locking housing (81) and the metal rod (82). The metal rod (82) is directly or indirectly limited by the limiting component (6) and contacts the positive electrode needle (4).

3. The integrated positive and negative electrode guiding structure of the electrosurgical resection mirror as described in claim 2, characterized in that: The sliding conductive component (7) includes a conductive contact rod (71) and an extension (72). The conductive contact rod (71) and the slide rod (2) are slidably connected. One end of the extension (72) is connected to the conductive contact rod (71), and the other end is limited by the limiting component (6) and contacts the negative electrode needle (5).

4. The integrated positive and negative electrode guiding structure of the electrosurgical resection mirror as described in claim 3, characterized in that: The limiting component (6) includes an insulating sleeve (61) and a conductive ring (83) that are fixedly connected. The insulating sleeve (61) limits the positive electrode (4) and the negative electrode (5). The metal rod (82) is inserted into the conductive ring (83) in contact with the positive electrode (4).

5. The integrated positive and negative electrode guiding structure of the electrosurgical resection mirror as described in claim 4, characterized in that: The conductive ring (83) includes an insulating hole (831), and one end of the extension (72) is inserted into the insulating hole (831) and contacts the negative electrode needle (5).

6. The integrated positive and negative electrode guiding structure of the electrosurgical resection mirror as described in claim 5, characterized in that: The extension (72) includes a spring (721), and the conductive contact rod (71) and the negative electrode needle (5) are electrically connected through the spring (721).

7. The integrated positive and negative electrode guiding structure of the electrosurgical resection mirror as described in claim 6, characterized in that: The conductive ring (83) is provided with a metal connection point (832), the spring (721) passes through the insulating hole (831), and the metal connection point (832) is in contact with or fixedly connected to the positive electrode needle (4).

8. The integrated positive and negative electrode guiding structure of the electrosurgical resection mirror as described in claim 2, characterized in that: It also includes a locking button (9), the metal locking housing (81) includes a first limiting hole (811), the positive locking head (3) includes a second limiting hole (31), and the locking button (9) pushes the metal locking housing (81) to achieve relative displacement of the first limiting hole (811) and the second limiting hole (31).

9. The integrated positive and negative electrode guiding structure of the electrosurgical resection mirror as described in claim 2, characterized in that: The metal rod (82) is provided with a positioning screw tip (821), and the metal locking housing (81) is provided with a positioning thread (812). The positioning screw tip (821) and the positioning thread (812) cooperate to fix the positive terminal lock head (3) and the metal locking housing (81).

10. The integrated positive and negative electrode guiding structure of the electrosurgical resection mirror as described in claim 3, characterized in that: The conductive contact rod (71) contacts the slide rod (2) on one side, which is an arc surface (711) that conforms to the shape of the slide rod (2).

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