Monopole endoscopic plasma operation electrode with adjustable application diameter and length

Abstract

The utility model discloses a monopole endoscopic plasma operation electrode with adjustable application diameter and length, which belongs to the technical field of operation electrodes, and comprises a front connecting rod, a rear connecting rod and a fixed tube, the fixed tube is arranged in a handle shell, the rear connecting rod is sleeved in the fixed tube in a sliding manner, and the front connecting rod is sleeved in the rear connecting rod in a sliding manner; a first elastic positioning mechanism is arranged at the tail end of the front connecting rod, a second elastic positioning mechanism is arranged at the tail end of the rear connecting rod, a second positioning point is arranged on the fixing pipe, and a first positioning point is arranged on the rear connecting rod. The utility model is used for solving the problems that the existing operation electrodes have various models and are complicated to use, and the inventory cost and the production management cost of the operation electrodes are high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to surgical electrode technical field, concretely is a kind of application diameter and length adjustable monopolar endoscopic plasma surgical electrode. BACKGROUND

[0002] Traditional monopolar endoscopic plasma surgical electrode is mainly composed of electrode head, connecting rod, plastic handle, cable and plug.

[0003] In endoscopic surgery, the specific clinical operation mode of monopolar endoscopic plasma surgical electrode is that the doctor holds the plastic handle, and the monopolar endoscopic plasma surgical electrode is inserted into the puncture device to be used with high-frequency surgical equipment and endoscope system. The doctor controls the generation of high-frequency host equipment current by triggering the foot pedal, and the high-frequency current is transmitted to the electrode head through the cable. The high-frequency current generates heat due to the resistance of human tissue. When the heat raises the temperature of the cells in the tissue to denature the protein in the cells, the tissue protein shrinks, curls and denatures, achieving the effect of coagulation cutting and hemostasis.

[0004] The current traditional monopolar endoscopic plasma surgical electrode has different clinical application scenarios, and the diameter of the connecting rod is mainly divided into 3mm and 5mm. The 3mm diameter connecting rod of the monopolar endoscopic plasma surgical electrode is used with the 3mm puncture device, mainly suitable for children in clinical endoscopic surgery; the 5mm diameter connecting rod of the monopolar endoscopic plasma surgical electrode is used with the 5mm puncture device, mainly suitable for adult clinical endoscopic surgery.

[0005] For the 3mm diameter connecting rod of the monopolar endoscopic plasma surgical electrode, the commonly used length of the connecting rod is mainly 190mm and 220mm according to the obesity degree of children's body weight. Children with normal body weight use 190mm connecting rod length, and obese children use 220mm connecting rod length.

[0006] For the 5mm diameter connecting rod of the monopolar endoscopic plasma surgical electrode, the commonly used length of the connecting rod is mainly 330mm and 450mm according to the obesity degree of adult body weight. Adults with normal body weight use 330mm connecting rod length, and obese adults use 450mm connecting rod length.

[0007] Therefore, due to the difference of the single pole endoscopic plasma surgery electrode connecting rod diameter and length, there are many types of products in the current market, which mainly have two disadvantages: the first disadvantage is that it greatly increases the manufacturing cost of raw materials, finished product inventory and production management of manufacturers; the second disadvantage is also for hospitals, for different patients of different applicable population, doctors will use different diameter and length of single pole endoscopic plasma surgery electrode for clinical surgery, on the one hand, it increases the management cost of hospital warehouse inventory, on the other hand, for the doctor operation, before using different types of surgical electrodes, it needs to be trained many times, which may cause the doctor's use proficiency of different types of products to be generally low, and the use proficiency may affect the actual clinical surgery effect. Practical new type content

[0008] In view of the above problems, the utility model provides a kind of single pole endoscopic plasma surgery electrode with adjustable diameter and length, to solve the problems such as large existing surgical electrode inventory cost, production management cost.

[0009] To achieve the above object, the technical scheme adopted by the utility model is:

[0010] A kind of single pole endoscopic plasma surgery electrode with adjustable diameter and length, including front connecting rod, rear connecting rod and fixed tube, the fixed tube is arranged in handle shell, the rear connecting rod is slidably sleeved in fixed tube, and the front connecting rod is slidably sleeved in rear connecting rod;First elastic positioning mechanism is arranged at the end of the front connecting rod, second elastic positioning mechanism is arranged at the end of the rear connecting rod, second positioning point is arranged on the fixed tube, and first positioning point is arranged on the rear connecting rod.

[0011] As a further improvement of the above technical scheme, the first positioning point includes first front positioning point, middle positioning point and first rear positioning point;First front positioning point, middle positioning point, first rear positioning and first elastic positioning mechanism cooperate, for positioning the different relative positions between front connecting rod and rear connecting rod;Second positioning point includes second front positioning point and second rear positioning point.

[0012] As a further improvement of the above technical scheme, the distance between the first rear positioning point and the middle positioning point is 30mm, and the distance between the first rear positioning point and the first front positioning point is 120mm;The distance between the second front positioning point and the second rear positioning point is 140mm.

[0013] As a further improvement of the above technical scheme, the first elastic positioning mechanism and the second elastic positioning mechanism are respectively first drum spring and second drum spring.

[0014] As a further improvement of the above technical solution, the first positioning point or the second positioning point is a recess provided on the inner side wall of the rear connecting rod or the fixing tube, and the relative position between the rear connecting rod, the fixing tube and the front connecting rod is positioned by cooperation of the recess and the protrusion of the drum spring.

[0015] As a further improvement of the above technical solution, the front end of the fixing tube is provided with a second waterproof sleeve, and the front end of the rear connecting rod is provided with a first waterproof sleeve.

[0016] As a further improvement of the above technical solution, the second waterproof sleeve is located between the fixing tube and the rear connecting rod, and the second drum spring is located behind the second waterproof sleeve; the first waterproof sleeve is located between the rear connecting rod and the front connecting rod, and the first drum spring is located behind the first waterproof sleeve.

[0017] As a further improvement of the above technical solution, the handle shell comprises an upper handle shell and a lower handle shell, and the lower handle shell and the upper handle shell are provided with a fixing groove for mounting the fixing tube.

[0018] As a further improvement of the above technical solution, the diameter of the rear connecting rod is greater than or equal to 5 mm, and the diameter of the front connecting rod is greater than or equal to 3 mm.

[0019] As a further improvement of the above technical solution, the inner diameter of the rear connecting rod is greater than the diameter of the front connecting rod.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows: through the telescopic front connecting rod and rear connecting rod, the manufacturing cost of manufacturers in aspects of raw materials, finished product inventory and production management can be reduced; the management cost of hospital warehouse inventory can be reduced; the number of clinical use training before operation of doctors can be reduced, the surgical use proficiency of doctors can be improved faster, and the overall operation efficiency is improved.

[0021] The setting of the drum spring can realize the connection and conduction of the front connecting rod and the rear connecting rod, and the connection and conduction of the rear connecting rod and the fixing tube, and due to the good elastic property of the drum spring, the friction between the front connecting rod and the rear connecting rod and between the rear connecting rod and the fixing tube is increased, so that the phenomenon that the front connecting rod slides forward and backward in the rear connecting rod or the rear connecting rod slides forward and backward in the fixing tube during operation is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a three-dimensional structure schematic diagram of the utility model.

[0023] Figure 2 It is an electrode state diagram suitable for obese children operation of the utility model.

[0024] Figure 3 It is an electrode state diagram suitable for normal children operation of the utility model.

[0025] Figure 4 The utility model discloses a normal adult operation electrode state diagram.

[0026] Figure 5 The utility model discloses a normal adult operation electrode state diagram.

[0027] In the drawing: 1, front connecting rod, 2, rear connecting rod, 3, fixed pipe, 4, lower handle shell, 5, upper handle shell, 6, first waterproof sleeve, 7, second waterproof sleeve, 11, first drum spring, 21, second drum spring, 22, first front locating point, 23, middle locating point, 24, first rear locating point, 32, second front locating point, 33, second rear locating point. DETAILED DESCRIPTION

[0028] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model is described in detail below in conjunction with examples, and the description of this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the utility model. EMBODIMENT

[0029] As Figures 1-4 shown, a single-pole endoscopic plasma operation electrode with adjustable diameter and length includes a front connecting rod 1, a rear connecting rod 2 and a fixed pipe 3, the fixed pipe 3 is arranged in a handle shell, the front connecting rod 1 is provided with an electrode head at the front end, the rear connecting rod 2 is slidingly arranged in the fixed pipe 3, and the front connecting rod 1 is slidingly arranged in the rear connecting rod 2; the front connecting rod 1 is provided with a first elastic positioning mechanism at the tail end, the rear connecting rod 2 is provided with a second elastic positioning mechanism at the tail end, the fixed pipe 3 is provided with a second locating point, and the rear connecting rod 2 is provided with a first locating point; the first locating point includes a first front locating point 22, a middle locating point 23 and a first rear locating point 24; the first front locating point 22, the middle locating point 23, the first rear locating point and the first elastic positioning mechanism cooperate to position different relative positions between the front connecting rod 1 and the rear connecting rod 2; the second locating point includes a second front locating point 32 and a second rear locating point 33.

[0030] Specifically, the material of the electrode head can be selected from 304 stainless steel, and the materials of the front connecting rod 1, the rear connecting rod 2 and the fixed pipe 3 can be selected from 304 stainless steel and a Teflon insulating layer.

[0031] As a preferred mode of the above embodiment, the spacing between the first rear locating point 24 and the middle locating point 23 is 30mm, the spacing between the first rear locating point 24 and the first front locating point 22 is 120mm; the spacing between the second front locating point 32 and the second rear locating point 33 is 140mm; and the first elastic positioning mechanism and the second elastic positioning mechanism are drum springs.

[0032] The first positioning point or the second positioning point is a recess provided on the inner side wall of the rear connecting rod 2 or the fixing tube 3. The relative position between the rear connecting rod 2, the fixing tube 3 and the front connecting rod 1 can be positioned by the cooperation of the recess and the protrusion of the drum spring.

[0033] The front end of the fixing tube 3 is provided with a second waterproof sleeve 7, and the front end of the rear connecting rod 2 is provided with a first waterproof sleeve 6.

[0034] The second waterproof sleeve 7 is located between the fixing tube 3 and the rear connecting rod 2, and the second drum spring 21 on the rear connecting rod 2 is located behind the second waterproof sleeve 7. The first waterproof sleeve 6 is located between the rear connecting rod 2 and the front connecting rod 1, and the first drum spring 11 on the front connecting rod 1 is located behind the first waterproof sleeve 6.

[0035] The drum spring is made of beryllium bronze material, which is a non-ferrous alloy with good combination of mechanical properties, physical properties, chemical properties and corrosion resistance. After solid solution and aging treatment, it has high strength limit, elastic limit, yield limit and fatigue limit comparable to special steel, and the material is cheap and the processing cost is low.

[0036] The drum spring adopts a "lantern type" structure with a hollow design in the middle, and its material itself has good ductility and elastic properties, which can ensure excellent elastic properties of the drum spring. When the doctor adjusts the length of the connecting rod due to the use demand, it can ensure smooth sliding and save time and effort for the doctor. At the same time, due to the "lantern type" hollow design, the friction between the front connecting rod 1 and the rear connecting rod 2, and the rear connecting rod 2 and the fixing tube 3 is increased, which ensures that the doctor will not appear the situation of connecting rod shaking or sliding during use. The "lantern type" structure of the drum spring improves the stability of the product.

[0037] The beryllium bronze material itself has high electrical conductivity, thermal conductivity, high hardness and wear resistance, high creep resistance and corrosion resistance. Its high performance wear resistance and corrosion resistance can ensure that the forceps rod will not fail due to sliding with the increase of the number of product use; during the operation, the doctor selects the appropriate energy for the operation according to the trauma of the patient's operation site, and its high electrical conductivity can efficiently transfer the current output by the high-frequency surgical equipment, without energy loss, improving the effectiveness of energy output and the accuracy of the operation.

[0038] The handle shell includes an upper handle shell 5 and a lower handle shell 4, and the lower handle shell 4 and the upper handle shell 5 are provided with a fixing groove for installing the fixing tube 3.

[0039] The diameter of the rear connecting rod 2 is 5 mm, and the diameter of the front connecting rod 1 is 3 mm.

[0040] The inner diameter of the rear connecting rod 2 is greater than the diameter of the front connecting rod 1.

[0041] When the product is specifically applied to children, the relative position between the rear connecting rod 2 and the front connecting rod 1 is as follows Figure 2 ,3 As shown, when the normal child weight needs to be performed in the clinical endoscopic surgery, the rear connecting rod 2 is hidden in the fixed tube 3 in the handle, at this time the second drum spring 21 of the rear connecting rod 2 is located at the second rear positioning point 33, the first drum spring 11 of the rear end of the front connecting rod 1 is located at the first rear positioning point 24, at this time the front connecting rod 1 extends a distance of 190mm; To achieve the endoscopic surgery of the obese children, the front connecting rod 1 is pulled forward to make the first drum spring 11 of the rear end of the front connecting rod 1 located at the middle positioning point 23, at this time the front connecting rod 1 extends a distance of 220mm.

[0042] In particular for adult applications, the first drum spring 11 of the front connecting rod 1 is adjusted to the first rear positioning point 24, and the second drum spring 21 of the rear connecting rod 2 is pulled out to be located at the second front positioning point 32, at this time the overall length of the front connecting rod 1 and the rear connecting rod 2 exposed from the plastic handle is 330mm, which can achieve the endoscopic surgery of the normal adult weight; If the endoscopic surgery of the obese adult is to be achieved, the first drum spring 11 of the front connecting rod 1 is pushed to the first front positioning point 22, at this time the overall length of the front connecting rod 1 and the rear connecting rod 2 exposed from the plastic handle is 450mm.

[0043] The adjustment and expansion function of the present patent adopts the welding design of the drum spring to realize the close contact of the front connecting rod 1 in the rear connecting rod 2 and the close contact of the rear connecting rod 2 in the fixed tube 3; The drum spring can realize the connection and conduction of the front connecting rod 1 and the rear connecting rod 2, and the connection and conduction of the rear connecting rod 2 and the fixed tube 3; In addition, due to the elastic performance of the drum spring, the friction between the front connecting rod 1 and the rear connecting rod 2 and the friction between the rear connecting rod 2 and the fixed tube 3 are increased, which will not cause the front connecting rod 1 to slide forward and backward in the rear connecting rod 2 and the rear connecting rod 2 to slide forward and backward in the fixed tube 3 during the operation, thereby affecting the operation effect.

[0044] Through the front connecting rod 1 and the rear connecting rod 2 which can be expanded, the manufacturing cost of raw materials, finished product inventory and production management of manufacturers can be reduced; The management cost of hospital warehouse inventory can be reduced; The number of clinical use training before operation of doctors can be reduced, the operation use proficiency of doctors can be improved faster, and the overall operation efficiency can be improved.

[0045] At the same time, the junction of the front connecting rod 1 and the rear connecting rod 2 and the junction of the rear connecting rod 2 and the fixed tube 3 are connected by using waterproof sleeves, which can limit the drum spring at the tail end of the front connecting rod 1 from sliding out of the front end through hole of the rear connecting rod 2, and play a limiting control role; It can prevent blood from entering the through hole of the rear connecting rod 2 during the operation, and will not cause the aging failure of the operation electrode.

[0046] It should be noted that the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0047] The principles and implementation manners of the present application are described by using specific examples in the present application. The above examples are only used to help understand the method of the present application and its core idea.

[0048] The above is only the preferred embodiment of the present application. It should be noted that due to the limited nature of the language expression, there are objectively infinite specific structures. For ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principles of the present application. The above technical features can also be combined in an appropriate manner. These improvements, refinements, changes or combinations, or the direct application of the concept and technical solution of the present application to other occasions without improvement, shall be regarded as the protection scope of the present application.

Claims

1. A monopolar endoscopic plasma surgical electrode with adjustable diameter and length, characterized in that, It includes a front link (1), a rear link (2) and a fixed tube (3). The fixed tube (3) is located inside the handle housing. The rear link (2) is slidably sleeved inside the fixed tube (3). The front link (1) is slidably sleeved inside the rear link (2). The front link (1) is provided with a first elastic positioning mechanism at its end. The rear link (2) is provided with a second elastic positioning mechanism at its end. The fixed tube (3) is provided with a second positioning point. The rear link (2) is provided with a first positioning point.

2. The monopolar endoscopic plasma surgical electrode with adjustable diameter and length according to claim 1, characterized in that, The first positioning point includes a first front positioning point (22), a middle positioning point (23) and a first rear positioning point (24); the first front positioning point (22), the middle positioning point (23) and the first rear positioning point cooperate with the first elastic positioning mechanism to position the different relative positions between the front link (1) and the rear link (2); the second positioning point includes a second front positioning point (32) and a second rear positioning point (33).

3. The monopolar endoscopic plasma surgical electrode with adjustable diameter and length according to claim 2, characterized in that, The distance between the first rear positioning point (24) and the middle positioning point (23) is 30mm, the distance between the first rear positioning point (24) and the first front positioning point (22) is 120mm, and the distance between the second front positioning point (32) and the second rear positioning point (33) is 140mm.

4. The monopolar endoscopic plasma surgical electrode with adjustable diameter and length according to claim 2, characterized in that, The first elastic positioning mechanism and the second elastic positioning mechanism are respectively the first drum spring (11) and the second drum spring (21).

5. The monopolar endoscopic plasma surgical electrode with adjustable diameter and length according to claim 4, characterized in that, The first or second positioning point is a recess set on the inner wall of the rear connecting rod (2) or the fixed tube (3). The relative position between the rear connecting rod (2), the fixed tube (3) and the front connecting rod (1) can be positioned by the cooperation between the recess and the protrusion of the drum spring.

6. The monopolar endoscopic plasma surgical electrode with adjustable diameter and length according to claim 1, characterized in that, The front end of the fixed tube (3) is provided with a second waterproof sleeve (7), and the front end of the rear connecting rod (2) is provided with a first waterproof sleeve (6).

7. The monopolar endoscopic plasma surgical electrode with adjustable diameter and length according to claim 6, characterized in that, The second waterproof sleeve (7) is located between the fixed tube (3) and the rear connecting rod (2), and the second drum spring (21) is located after the second waterproof sleeve (7); the first waterproof sleeve (6) is located between the rear connecting rod (2) and the front connecting rod (1), and the first drum spring (11) is located after the first waterproof sleeve (6).

8. The monopolar endoscopic plasma surgical electrode with adjustable diameter and length according to claim 1, characterized in that, The handle housing includes an upper handle housing (5) and a lower handle housing (4), and the lower handle housing (4) and the upper handle housing (5) are provided with fixing grooves for installing fixing tubes (3).

9. The monopolar endoscopic plasma surgical electrode with adjustable diameter and length according to claim 1, characterized in that, The diameter of the rear link (2) is greater than or equal to 5 mm, and the diameter of the front link (1) is greater than or equal to 3 mm.

10. The monopolar endoscopic plasma surgical electrode with adjustable diameter and length according to claim 9, characterized in that, The inner diameter of the rear link (2) is larger than the diameter of the front link (1).

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