WO2020238172A1 - Endoscopic instrument and linkage structure thereof - Google Patents

Endoscopic instrument and linkage structure thereof Download PDF

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Publication number
WO2020238172A1
WO2020238172A1 PCT/CN2019/126561 CN2019126561W WO2020238172A1 WO 2020238172 A1 WO2020238172 A1 WO 2020238172A1 CN 2019126561 W CN2019126561 W CN 2019126561W WO 2020238172 A1 WO2020238172 A1 WO 2020238172A1
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WIPO (PCT)
Prior art keywords
handle
tube
injection
gear
rack
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PCT/CN2019/126561
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French (fr)
Chinese (zh)
Inventor
马海龙
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安瑞医疗器械(杭州)有限公司
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Priority claimed from CN201910452082.6 external-priority
Application filed by 安瑞医疗器械(杭州)有限公司 filed Critical 安瑞医疗器械(杭州)有限公司
Publication of WO2020238172A1 publication Critical patent/WO2020238172A1/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M31/00Devices for introducing or retaining media, e.g. remedies, in cavities of the body
    • A61M31/002Devices for releasing a drug at a continuous and controlled rate for a prolonged period of time
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/0091Handpieces of the surgical instrument or device
    • A61B2018/00916Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/0091Handpieces of the surgical instrument or device
    • A61B2018/00916Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device
    • A61B2018/00958Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device for switching between different working modes of the main function
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00982Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes

Abstract

Disclosed is an endoscopic instrument and a linkage structure thereof. The linkage structure comprises a handle portion, a sheath catheter (10), a flow guide catheter, a traction wire, a cutting scalpel (13), and an injection needle (12), wherein the handle portion comprises a first handle (1), a second handle, an injection catheter (8) and an electrode tube (9), and the electrode tube (9) and the injection catheter (8) are arranged in a handle side cover (3) of the handle portion; a front end of the handle side cover (3) is further provided with an end cap (4), an electrode (15) is fixed on the end cap (4), the electrode tube (9) and/or the traction wire pass through the end cap (4), and the electrode (15) is in contact, by means of an electric brush, with the electrode tube (9) and/or the traction wire for electric conduction; and the flow guide catheter passes through the handle and is fixedly connected to an injection handle, and the injection handle moves forward and backward so as to drive the flow guide catheter to move forward and backward. The electrode (15) is fixed on the end cap (4) of the front end of the handle portion, and an injection port of the injection catheter (8) is arranged at a rear end of the handle portion, and a driven member has no load brought about by other connections, and as such, the portion held during the use of the instrument can be fully avoided, thereby reducing interference for an operator and reducing the motion load of an instrument mechanism, thus reducing the difficulty of process implementation.

Description

内窥镜器械及其联动结构Endoscope instrument and its linkage structure 技术领域Technical field
本发明涉及一种用于内镜下器械的多功能联动结构,更具体地说,它涉及一种内窥镜器械及其联动结构。The invention relates to a multifunctional linkage structure for endoscopic instruments, and more specifically, it relates to an endoscopic instrument and its linkage structure.
背景技术Background technique
近年来随着内镜技术的发展,内镜下组织活检、内镜下粘膜切除术、内镜下粘膜剥离术得到了广泛的应用,其对消化道出血、狭窄、息肉切除及消化道早癌的发现、诊断和治疗起到了关键作用。目前市场上常用的器械主要是单功能的高频电切割器械、单功能的电凝血器械、单功能的内镜下注射器械;少部分厂家提供了电切割与电凝血结合的器械,以及极少厂家提供的整合电切除与注射功能结合的器械。然而后者往往采用了不同功能的运动件分别控制的方式,如此不但导致医生在操作中的繁琐程度增加,也导致了因操作不当而出现的意外,如:电切除时,不慎将注射针推出;或注射时,不慎将电刀推出。In recent years, with the development of endoscopic technology, endoscopic tissue biopsy, endoscopic mucosal resection, and endoscopic mucosal dissection have been widely used. They are used for gastrointestinal bleeding, stricture, polypectomy and early gastrointestinal cancer. The discovery, diagnosis and treatment of the disease played a key role. At present, the commonly used instruments on the market are mainly single-function high-frequency electric cutting instruments, single-function electrocoagulation instruments, and single-function endoscopic injection instruments; a small number of manufacturers provide instruments that combine electric cutting and electrocoagulation, and very few A device that integrates electrical resection and injection functions provided by the manufacturer. However, the latter often uses separate control of moving parts with different functions. This not only causes the doctor to increase the cumbersomeness of the operation, but also leads to accidents due to improper operation, such as: the injection needle is accidentally removed during electrical resection. Push out; or accidentally push out the electric knife during injection.
杭州安杰思医学科技有限公司的一种组合电刀,专利号为:CN104055572 A,公开了一种圆柱型组合高频手术器械。不涉及组合注射功能。A combined electrosurgical unit of Hangzhou Anjiesi Medical Technology Co., Ltd., patent number: CN104055572 A, discloses a cylindrical combined high-frequency surgical instrument. No combination injection function is involved.
上海埃尔顿医疗器械有限公司的一种内窥镜用高频刀具,专利号为:CN203861344 U,公开了一种内窥镜用高频刀具。不涉及组合注射功能。A high-frequency cutter for endoscopes of Shanghai Elton Medical Instrument Co., Ltd., patent number: CN203861344 U, discloses a high-frequency cutter for endoscopes. No combination injection function is involved.
上海埃尔顿医疗器械有限公司的一种内窥镜用高频刀具,专利号为:CN201420273038.1,公开了一种刀头中设有冲洗孔的内窥镜用高频刀具。A high-frequency cutter for endoscopes of Shanghai Elton Medical Instruments Co., Ltd., patent number: CN201420273038.1, discloses a high-frequency cutter for endoscopes with flushing holes in the cutter head.
杭州安杰思医学科技有限公司的一种组合电刀,专利号为:CN201410281645.7, 公开了一种组合电刀,刀头部包括至少两个或两个以上相互间可以相对移动或转动的刀头。A combined electrosurgical knife of Hangzhou Anjiesi Medical Technology Co., Ltd., patent number: CN201410281645.7, discloses a combined electrosurgical knife. The knife head includes at least two or more movable or rotatable relative to each other. Cutter head.
UPEX MED公司的专利KR101830085B1涉及了一种单齿轮或单皮带连接的多功能器械。其重点是在器械远端多功能开口的特殊设计,此外其电极和注射接口均位于运动件之上,如此将导致产品实现中遇到推动/拉动阻力过大的困难,以及操作者因接口连接件的干扰影响手术动作或不得已中断正常手术动作而调整姿态的问题。此外该设计中单齿轮和单皮带的连接使得不同功能所需行程出现差异时出现配合困难的情况。UPEX MED's patent KR101830085B1 relates to a multifunctional instrument connected by a single gear or a single belt. The focus is on the special design of the multifunctional opening at the distal end of the instrument. In addition, the electrodes and the injection interface are located on the moving parts. This will cause the difficulty of excessive push/pull resistance in product realization, and the operator's interface connection The interference of the parts affects the operation or the problem of adjusting the posture by interrupting the normal operation. In addition, the connection of a single gear and a single belt in this design makes it difficult to cooperate when the required strokes of different functions are different.
技术问题technical problem
针对现有技术存在的不足,本发明在于提供一种内窥镜器械及其联动结构,其降低了器械结构的运动负载,避免了电极和注射接口位于运动件之上导致对操作者的干扰。In view of the shortcomings of the prior art, the present invention is to provide an endoscopic instrument and its linkage structure, which reduces the motion load of the instrument structure and avoids the interference to the operator caused by the electrodes and the injection interface being located on the moving parts.
技术解决方案Technical solutions
为实现上述目的,本发明提供了如下技术方案:一种内窥镜器械的联动结构,包括手柄部、鞘管、导流管、牵引丝、切割刀和注射针;手柄部包括第一手柄、第二手柄、注射管以及电极管;In order to achieve the above objective, the present invention provides the following technical solutions: a linkage structure of an endoscopic instrument, including a handle part, a sheath, a draft tube, a traction wire, a cutting knife and an injection needle; the handle part includes a first handle, The second handle, the injection tube and the electrode tube;
第一手柄和第二手柄滑动连接,第二手柄内设置能够进行前后移动的电极管和注射管,电极管与注射管通过传动组件实现传动连接,注射管向前或向后运动时通过传动组件驱使电极管向与注射管运动方向相反的方向运动;The first handle and the second handle are slidably connected. The second handle is provided with an electrode tube and an injection tube that can move back and forth. The electrode tube and the injection tube are connected by a transmission assembly, and the injection tube is moved forward or backward through the transmission assembly Drive the electrode tube to move in the direction opposite to the movement direction of the injection tube;
鞘管的后端与第二手柄固定连接,导流管和牵引丝贯穿通过鞘管;牵引丝的前端固定有切割刀,牵引丝的后端与手柄部中的电极管连接,通过前后移动电极管从而带动切割刀从鞘管前端伸出和缩回;导流管的前端固定有注射针,导流管的后端与手柄部中的注射管连接,通过前后移动注射管从而带动注射针从鞘管前端伸出和缩回;The rear end of the sheath tube is fixedly connected with the second handle, the guide tube and the pulling wire pass through the sheath tube; the front end of the pulling wire is fixed with a cutting knife, the rear end of the pulling wire is connected with the electrode tube in the handle, and the electrode is moved forward and backward. The tube drives the cutting knife to extend and retract from the front end of the sheath; the front end of the flow guide tube is fixed with an injection needle, the rear end of the flow guide tube is connected to the injection tube in the handle, and the injection tube is moved back and forth to drive the injection needle from The front end of the sheath is extended and retracted;
第二手柄的前端设有端帽,端帽上固定有电极,电极管和/或牵引丝贯穿端帽,电极通过电刷与电极管 和/或牵引丝接触导电;注射管贯穿第二手柄并与第一手柄固定连接,第一手柄前后移动从而带动注射管和导流管前后移动。The front end of the second handle is provided with an end cap, the end cap is fixed with an electrode, the electrode tube and/or the traction wire penetrates the end cap, and the electrode contacts the electrode tube and/or the traction wire through the brush to conduct electricity; the injection tube penetrates the second handle and It is fixedly connected with the first handle, and the first handle moves back and forth to drive the injection tube and the flow guide tube to move back and forth.
这样,电极固定在手柄部前端的端帽上,同时,注射管的注射口设置在手柄部的后端,且从动件注射管和电极管无其他连接带来的负载,如此可充分避开器械使用时握持的部分,减少对操作者的干扰,并且降低了器械机构的运动载荷,从而减少工艺实现的困难和材质强度的额外要求。In this way, the electrode is fixed on the end cap at the front end of the handle, and at the same time, the injection port of the injection tube is set at the rear end of the handle, and the follower injection tube and the electrode tube have no load caused by other connections, which can fully avoid The gripping part of the instrument reduces the interference to the operator, and reduces the movement load of the instrument mechanism, thereby reducing the difficulty of process realization and the additional requirements for material strength.
作为优选,所述第二手柄包括手柄主体和手柄侧盖,手柄侧盖的前端设置所述端帽,端帽与所述手柄侧盖之间通过卡接、过盈配合或者螺纹连接,手柄侧盖的后端固定手柄主体,手柄主体的后端与第一手柄插套滑动连接,第一手柄上设有注射接头,所述传动组件安装在手柄侧盖内。这样结构简单,方便手术操作。Preferably, the second handle includes a handle body and a handle side cover. The front end of the handle side cover is provided with the end cap. The end cap and the handle side cover are connected by a snap connection, interference fit or threaded connection, and the handle side The rear end of the cover fixes the handle body, the rear end of the handle body is slidably connected with the first handle sleeve, the first handle is provided with an injection joint, and the transmission assembly is installed in the handle side cover. This structure is simple and convenient for operation.
作为优选,所述传动组件包括第一齿架和第二齿架,第一齿架和第二齿架上均设有条形齿,且第一齿架和第二齿架滑动设置在手柄侧盖内,注射管与第一齿架固定连接,电极管与第二齿架固定连接,第一齿架和第二齿架之间通过齿轮传动连接。Preferably, the transmission assembly includes a first rack and a second rack. The first rack and the second rack are provided with bar-shaped teeth, and the first rack and the second rack are slidably arranged on the handle side In the cover, the injection tube is fixedly connected with the first rack, the electrode tube is fixedly connected with the second rack, and the first rack and the second rack are connected by gear transmission.
作为优选,第一齿架和第二齿架之间通过齿轮组传动连接,该齿轮组包括至少两个齿轮,通过齿轮组的传动作用使电极管和注射管向相反方向运动。Preferably, the first gear carrier and the second gear carrier are connected in transmission through a gear set. The gear set includes at least two gears. The electrode tube and the injection tube move in opposite directions through the transmission of the gear set.
当推动第一手柄时,带动第二手柄内的注射管和第一齿架向前移动,通过与注射管相连的导流管推动注射针伸出鞘管前端;同时第一齿架通过条形齿带动齿轮组上的齿轮转动,齿轮带动第二齿架向后拉动,从而通过电极管、牵引丝拉动切割刀向后退回鞘管深处,此时完成注射功能状态就绪,可通过第一手柄末端的注射管进行生理盐水、止血剂等液体的注射。如需使用电切割功能则可通过拉动第一手柄完成相应动作。这样,该结构通过齿轮组能够对注射针和切割刀的进退速度进行调节,方便手术操作。在液体注射和电切割功能之间通过传动组件的联动实现各功能部件的反向运动,以此首先可以完全消除待命功能的意外启动,避免对病人造成意外伤害或对手术过程造成干扰;其次可以实现一种功能部件的运动来同时控制双功能部件的运动,减少医生操作中的非必要动作,提高手术效率When the first handle is pushed, the injection tube and the first rack in the second handle are driven to move forward, and the injection needle is pushed out of the front end of the sheath through the guide tube connected with the injection tube; at the same time, the first rack passes through the strip The gears drive the gears on the gear set to rotate, and the gears drive the second rack to pull back, so that the electrode tube and the traction wire pull the cutting knife back to the depth of the sheath. At this time, the injection function is ready and the first handle can be used. The injection tube at the end is used to inject liquids such as saline and hemostatic agents. If you need to use the electric cutting function, you can complete the corresponding action by pulling the first handle. In this way, the structure can adjust the advance and retreat speed of the injection needle and the cutting knife through the gear set, which is convenient for surgical operation. Between the liquid injection and the electric cutting function, the reverse movement of the functional parts is realized through the linkage of the transmission assembly, so that the accidental activation of the standby function can be completely eliminated, and accidental injury to the patient or interference to the surgical process can be avoided; Realize the movement of a functional component to control the movement of the dual-function component at the same time, reduce unnecessary actions in the doctor's operation, and improve the efficiency of the operation
作为优选,所述齿轮组包括同轴转动的第一齿轮和第二齿轮,第一齿轮与第一齿架上的齿条相啮合,第二齿轮与第二齿架上的齿条相啮合。Preferably, the gear set includes a first gear and a second gear that rotate coaxially, the first gear meshes with the rack on the first rack, and the second gear meshes with the rack on the second rack.
当推动第一手柄时,带动第二手柄内的注射管和第一齿架向前移动,通过与注射管相连的导流管推动注射针伸出鞘管前端;同时第一齿架通过条形齿带动齿轮组上的第一齿轮转动,第一齿轮带动第二齿轮转动,第二齿轮驱动第二齿架向后拉动,从而通过电极管、牵引丝拉动切割刀向后退回鞘管深处,此时完成注射功能状态就绪。如需使用电切割功能则可通过拉动第一手柄完成相应动作。When the first handle is pushed, the injection tube and the first rack in the second handle are driven to move forward, and the injection needle is pushed out of the front end of the sheath through the guide tube connected with the injection tube; at the same time, the first rack passes through the strip The teeth drive the first gear on the gear set to rotate, the first gear drives the second gear to rotate, and the second gear drives the second gear frame to pull back, so that the electrode tube and the traction wire pull the cutting knife back to the depth of the sheath. The injection function is now ready. If you need to use the electric cutting function, you can complete the corresponding action by pulling the first handle.
作为优选,第一齿轮和第二齿轮通过连轴固定连接,连轴以能够转动的方式安装在第二手柄内。Preferably, the first gear and the second gear are fixedly connected by a connecting shaft, and the connecting shaft is installed in the second handle in a rotatable manner.
作为优选,所述第一齿轮的外径大于所述第二齿轮的外径。这样,一方面,通过调节第一齿轮和第二齿轮的外径,进而能够对注射针和切割刀的进退速度进行调节,方便手术操作;另一方面,可以使第一齿架和第二齿架保持一定的距离,避免第一齿架和第二齿架相距较近发生摩擦,使第一齿架和第二齿架的相对运动受阻。Preferably, the outer diameter of the first gear is larger than the outer diameter of the second gear. In this way, on the one hand, by adjusting the outer diameters of the first gear and the second gear, the advance and retreat speed of the injection needle and the cutting knife can be adjusted to facilitate the operation; on the other hand, the first gear carrier and the second gear can be adjusted The frame is kept at a certain distance to avoid friction between the first gear frame and the second gear frame when they are close to each other, and the relative movement of the first gear frame and the second gear frame is blocked.
作为优选,所述第一齿架和所述第二齿架均通过导轨、导槽或者导向杆的方式滑动设置在第二手柄内。Preferably, both the first rack and the second rack are slidably arranged in the second handle by means of guide rails, guide grooves or guide rods.
作为优选,所述切割刀和注射针并列设置在鞘管的前端。Preferably, the cutting knife and the injection needle are arranged side by side at the front end of the sheath.
作为优选,所述注射针贯穿所述切割刀。Preferably, the injection needle penetrates the cutting knife.
一种内窥镜器械,包括如上所述的一种内窥镜器械的联动结构。An endoscopic instrument includes the linkage structure of an endoscopic instrument as described above.
有益效果Beneficial effect
综上所述,本发明具有以下有益效果:电极固定在手柄部前端的端帽上,同时,注射管的注射口设置在手柄部的后端,且从动件注射管和电极管无其他连接带来的负载,如此可充分避开器械使用时握持的部分,减少对操作者的干扰,并且降低了器械机构的运动载荷,从而减少工艺实现的困难和材质强度的额外要求。In summary, the present invention has the following beneficial effects: the electrode is fixed on the end cap at the front end of the handle part, and at the same time, the injection port of the injection tube is arranged at the back end of the handle part, and the follower injection tube and the electrode tube have no other connection The load brought by this can fully avoid the part that the instrument is held during use, reduce the interference to the operator, and reduce the movement load of the instrument mechanism, thereby reducing the difficulty in process realization and the additional requirements for material strength.
附图说明Description of the drawings
图1为本发明的结构示意图;Figure 1 is a schematic diagram of the structure of the present invention;
图2为本发明的截面结构示意图;Figure 2 is a schematic cross-sectional structure diagram of the present invention;
图3为本发明的另一个截面结构示意图;Figure 3 is another cross-sectional structure diagram of the present invention;
图4为图1中沿A-A方向的截面结构示意图;Fig. 4 is a schematic cross-sectional structure view along the A-A direction in Fig. 1;
图5为本发明的注射针和切割刀装配的截面结构示意图;Figure 5 is a schematic cross-sectional structure diagram of the assembly of the injection needle and the cutting knife of the present invention;
图6为本发明的注射针和切割刀另一种装配方式的截面结构示意图。6 is a schematic cross-sectional structure diagram of another assembly method of the injection needle and the cutting knife of the present invention.
附图标记:1、第一手柄;2、手柄主体;3、手柄侧盖;4、端帽;5、第一齿架;6、第二齿架;7、齿轮组;8、注射管;9、电极管;10、鞘管;12、注射针;13、切割刀;14、头端帽;15、电极;16、第一齿轮;17、第二齿轮;18、连轴。Reference signs: 1. first handle; 2. handle body; 3. handle side cover; 4. end cap; 5. first rack; 6, second rack; 7, gear set; 8, injection tube; 9. Electrode tube; 10. Sheath tube; 12. Injection needle; 13. Cutter; 14. Head end cap; 15. Electrode; 16. First gear; 17, Second gear; 18. Coupling.
本发明的实施方式Embodiments of the invention
参照附图对本发明做进一步说明。The present invention will be further explained with reference to the drawings.
本实施例公开了一种内窥镜器械的联动结构,如图1、图2和图5所示,包括手柄部、鞘管10、导流管、牵引丝、切割刀13和注射针12;手柄部包括第一手柄1、第二手柄、注射管8和电极管9。This embodiment discloses a linkage structure of an endoscopic instrument, as shown in Figs. 1, 2 and 5, including a handle portion, a sheath 10, a draft tube, a traction wire, a cutting knife 13, and an injection needle 12; The handle part includes a first handle 1, a second handle, an injection tube 8 and an electrode tube 9.
如图2、图5和图6所示,鞘管10的前端固定有头端帽14,鞘管10的后端与第二手柄固定连接,鞘管10内贯穿通过有导流管和牵引丝,牵引丝的前端固定有切割刀13,牵引丝的后端与第二手柄中的电极管9连接,通过前后移动电极管9从而带动切割刀13从头端帽14伸出和缩回;导流管的前端固定有注射针12,导流管的后端与第二手柄中的注射管8连接,通过前后移动注射管8从而带动注射针12从头端帽14伸出和缩回;切割刀13和注射针12并列设置在鞘管10的前端,或者,注射针12贯穿切割刀13。As shown in Figures 2, 5 and 6, the front end of the sheath tube 10 is fixed with a head cap 14, the rear end of the sheath tube 10 is fixedly connected with the second handle, and the sheath tube 10 has a flow guide tube and a traction wire passing through it. , The front end of the traction wire is fixed with a cutting knife 13, and the rear end of the traction wire is connected to the electrode tube 9 in the second handle. The electrode tube 9 is moved back and forth to drive the cutting knife 13 to extend and retract from the head end cap 14; The front end of the tube is fixed with an injection needle 12, the rear end of the guide tube is connected with the injection tube 8 in the second handle, and the injection tube 8 is moved back and forth to drive the injection needle 12 to extend and retract from the head end cap 14; the cutting knife 13 The injection needle 12 is arranged at the front end of the sheath tube 10 in parallel, or the injection needle 12 penetrates the cutter 13.
第一手柄1和第二手柄滑动连接,第二手柄包括手柄主体2和手柄侧盖(3),手柄侧盖3的前端设置端帽4,端帽4与手柄侧盖3之间通过卡接、过盈配合或者螺纹连接,端帽4与鞘管10固定连接,手柄侧盖3的后端固定手柄主体2,手柄主体2的后端与第一手柄1插套滑动连接,第一手柄1上设有注射接头。如图2和图5所示,端帽4上固定有电极15,电极管9和/或牵引丝贯穿端帽4,电极15通过电刷与电极管9和/或牵引丝接触导电。切割刀13通过牵引丝与第二手柄的电极15连接,将高频电接在电极15上可使切割刀13带电,在手术上可通过高频切割切除病变。第二手柄的手柄侧盖3内设置能够进行前后移动的电极管9和注射管8,注射管8贯穿第二手柄并与第一手柄1固定连接,第一手柄1进行前后移动从而带动注射管8和导流管前后运动,导流管带动注射针12从头端帽14伸出和缩回,第一手柄1后端设有注射接头,将注射器连接到注射接头,通过注射管8将液体输送到导流管,再通过移动第一手柄1驱动注射针12前后移动,在临床上可以进行生理盐水、止血剂等液体的注射。这样,电极15固定在手柄部前端的端帽4上,同时,注射管8的注射口设置在手柄部的后端,且从动件注射管8和电极管9无其他连接带来的负载,如此可充分避开器械使用时握持的部分,减少对操作者的干扰,并且降低了器械机构的运动载荷,从而减少工艺实现的困难和材质强度的额外要求。The first handle 1 and the second handle are slidably connected. The second handle includes a handle body 2 and a handle side cover (3). The front end of the handle side cover 3 is provided with an end cap 4, and the end cap 4 and the handle side cover 3 are clamped , Interference fit or threaded connection, the end cap 4 is fixedly connected with the sheath tube 10, the rear end of the handle side cover 3 fixes the handle body 2, and the rear end of the handle body 2 is slidingly connected with the first handle 1 inserting sleeve, the first handle 1 There is an injection connector on it. As shown in Figures 2 and 5, an electrode 15 is fixed on the end cap 4, and the electrode tube 9 and/or the drawing wire penetrates the end cap 4, and the electrode 15 is in contact with the electrode tube 9 and/or the drawing wire through a brush to conduct electricity. The cutting knife 13 is connected to the electrode 15 of the second handle through the traction wire, and the high-frequency electricity is connected to the electrode 15 so that the cutting knife 13 can be charged, and the lesion can be removed by high-frequency cutting in surgery. The handle side cover 3 of the second handle is provided with an electrode tube 9 and an injection tube 8 that can move back and forth. The injection tube 8 penetrates the second handle and is fixedly connected to the first handle 1. The first handle 1 moves back and forth to drive the injection tube 8 and the flow guide tube move back and forth, the flow guide tube drives the injection needle 12 to extend and retract from the head end cap 14. The rear end of the first handle 1 is provided with an injection joint, which connects the syringe to the injection joint, and delivers the liquid through the injection tube 8. To the catheter, and then move the first handle 1 to drive the injection needle 12 to move back and forth, clinically, the injection of normal saline, hemostatic agent and other liquids can be performed. In this way, the electrode 15 is fixed on the end cap 4 at the front end of the handle part, and at the same time, the injection port of the injection tube 8 is arranged at the rear end of the handle part, and the follower injection tube 8 and the electrode tube 9 have no load caused by other connections. In this way, the gripping part of the instrument can be fully avoided, the interference to the operator is reduced, and the movement load of the instrument mechanism is reduced, thereby reducing the difficulty of process realization and the additional requirement of material strength.
如图3、图4和图5所示,电极管9和注射管8通过传动组件是实现传动连接,注射管8向前或向后运动,并通过传动组件驱使电极管9向与注射管8运动方向相反的方向运动;当向前推动第一手柄1时,带动手柄侧盖3内的注射管8向前移动,通过与注射管8相连的导流管推动注射针12伸出鞘管10前端;同时注射管8通过传动组件驱使电极管9向后拉动,从而通过电极管9、牵引丝拉动切割刀13向后退回鞘管10深处,此时完成注射功能状态就绪,可通过第一手柄1末端的注射管8进行生理盐水、止血剂等液体的注射。如需使用电切割功能则可通过拉动第一手柄1完成相应动作。在液体注射和电切割功能之间通过传动组件的联动实现各功能部件的反向运动,以此首先可以完全消除待命功能的意外启动,避免对病人造成意外伤害或对手术过程造成干扰;其次可以实现一种功能部件的运动来同时控制双功能部件的运动,减少医生操作中的非必要动作,提高手术效率。As shown in Figures 3, 4 and 5, the electrode tube 9 and the injection tube 8 are connected by a transmission assembly. The injection tube 8 moves forward or backward, and the electrode tube 9 is driven to the injection tube 8 through the transmission assembly. The movement direction is opposite; when the first handle 1 is pushed forward, the injection tube 8 in the handle side cover 3 is driven to move forward, and the injection needle 12 is pushed out of the sheath 10 through the guide tube connected with the injection tube 8 At the same time, the injection tube 8 drives the electrode tube 9 backward through the transmission assembly, so that the cutting knife 13 is pulled back to the depth of the sheath tube 10 through the electrode tube 9 and the traction wire. At this time, the injection function is completed and the state is ready to pass the first The injection tube 8 at the end of the handle 1 injects liquids such as physiological saline and hemostatic agents. If you need to use the electric cutting function, you can pull the first handle 1 to complete the corresponding action. Between the liquid injection and the electric cutting function, the reverse movement of the functional parts is realized through the linkage of the transmission assembly, so that the accidental activation of the standby function can be completely eliminated, and accidental injury to the patient or interference to the surgical process can be avoided; Realize the movement of a functional component to simultaneously control the movement of the dual-function component, reduce unnecessary actions in the doctor's operation, and improve the efficiency of the operation.
如图3、图4和图5所示,传动组件包括第一齿架5和第二齿架6,第一齿架5和第二齿架6上均设有条形齿,且第一齿架5和第二齿架6滑动设置在手柄侧盖3内,且第一齿架5和第二齿架6均通过导轨、导槽或者导向杆的方式滑动设置在第二手柄的手柄侧盖3内,注射管8与第一齿架5固定连接,电极管9与第二齿架6固定连接,第一齿架5和第二齿架6之间设有齿轮组7,齿轮组7包括同轴转动的第一齿轮16和第二齿轮17,第一齿轮16和第二齿轮17通过连轴18固定连接,连轴18以能够转动的方式安装在第二手柄内,第一齿轮16与第一齿架5上的条形齿相啮合,第二齿轮17与第二齿架6上的条形齿相啮合,通过齿轮组7的传动作用使电极管9和注射管8向相反方向运动。当推动第一手柄1时,带动手柄侧盖3内的注射管8和第一齿架5向前移动,通过与注射管8相连的导流管推动注射针12伸出鞘管10前端;同时第一齿架5通过条形齿带动第一齿轮16转动,第一齿轮16通过连轴18带动第二齿轮17转动,第二齿轮17带动第二齿架6向后拉动,从而通过电极管9、牵引丝拉动切割刀13向后退回鞘管10深处,此时完成注射功能状态就绪。如需使用电切割功能则可通过拉动第一手柄1完成相应动作。另外,第一齿轮16的外径大于第二齿轮17的外径;这样,一方面,通过调节第一齿轮16和第二齿轮17的外径,进而能够对注射针12和切割刀13的进退速度进行调节,方便手术操作;另一方面,可以使第一齿架5和第二齿架6保持一定的距离,避免第一齿架5和第二齿架6相距较近发生摩擦,使第一齿架5和第二齿架6的相对运动受阻。As shown in Figures 3, 4 and 5, the transmission assembly includes a first gear carrier 5 and a second gear carrier 6. The first gear carrier 5 and the second gear carrier 6 are both provided with bar-shaped teeth, and the first tooth The frame 5 and the second gear frame 6 are slidably arranged in the handle side cover 3, and the first gear frame 5 and the second gear frame 6 are both slidably arranged on the handle side cover of the second handle by means of guide rails, guide grooves or guide rods In 3, the injection tube 8 is fixedly connected with the first rack 5, and the electrode tube 9 is fixedly connected with the second rack 6. A gear set 7 is provided between the first rack 5 and the second rack 6, and the gear set 7 includes The first gear 16 and the second gear 17 rotate coaxially. The first gear 16 and the second gear 17 are fixedly connected by a connecting shaft 18. The connecting shaft 18 is rotatably installed in the second handle. The first gear 16 is connected to the The bar-shaped teeth on the first rack 5 mesh, the second gear 17 meshes with the bar-shaped teeth on the second rack 6, and the electrode tube 9 and the injection tube 8 move in opposite directions through the transmission of the gear set 7 . When the first handle 1 is pushed, the injection tube 8 and the first rack 5 in the handle side cover 3 are driven to move forward, and the injection needle 12 is pushed out of the front end of the sheath 10 through the guide tube connected to the injection tube 8; The first gear carrier 5 drives the first gear 16 to rotate through bar-shaped teeth, the first gear 16 drives the second gear 17 to rotate through the shaft 18, and the second gear 17 drives the second gear carrier 6 to pull backwards, thereby passing the electrode tube 9 , The traction wire pulls the cutting knife 13 back to the depth of the sheath 10, and the injection function is now ready. If you need to use the electric cutting function, you can pull the first handle 1 to complete the corresponding action. In addition, the outer diameter of the first gear 16 is greater than the outer diameter of the second gear 17; in this way, on the one hand, by adjusting the outer diameters of the first gear 16 and the second gear 17, the injection needle 12 and the cutting knife 13 can be advanced and retreated. The speed can be adjusted to facilitate the operation; on the other hand, the first gear carrier 5 and the second gear carrier 6 can be kept at a certain distance to avoid friction between the first gear carrier 5 and the second gear carrier 6 when they are close to each other. The relative movement of the first gear carrier 5 and the second gear carrier 6 is blocked.
本具体实施例中的指定方向仅仅是为了便于表述各部件之间位置关系以及相互配合的关系。以上所述仅是本发明的优选实施方式,本发明的保护范围并不仅局限于上述实施例,凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理前提下的若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。The specified direction in this specific embodiment is only for the convenience of expressing the positional relationship between the components and the mutual cooperation relationship. The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments. All technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and modifications made without departing from the principles of the present invention should also be regarded as the protection scope of the present invention.

Claims (11)

  1. 一种内窥镜器械的联动结构,包括手柄部、鞘管(10)、导流管、牵引丝、切割刀(13)和注射针(12);手柄部包括第一手柄(1)、第二手柄、注射管(8)以及电极管(9);A linkage structure of an endoscopic instrument includes a handle part, a sheath (10), a draft tube, a traction wire, a cutting knife (13) and an injection needle (12); the handle part includes a first handle (1), a first Two handles, injection tube (8) and electrode tube (9);
    第一手柄(1)和第二手柄滑动连接,第二手柄内设置能够进行前后移动的电极管(9)和注射管(8),电极管(9)与注射管(8)通过传动组件实现传动连接,注射管(8)向前或向后运动时通过传动组件驱使电极管(9)向与注射管(8)运动方向相反的方向运动;The first handle (1) and the second handle are slidably connected. The electrode tube (9) and the injection tube (8) that can move back and forth are arranged in the second handle. The electrode tube (9) and the injection tube (8) are realized by a transmission assembly Transmission connection, when the injection tube (8) moves forward or backward, the electrode tube (9) is driven to move in the direction opposite to the movement direction of the injection tube (8) through the transmission assembly;
    鞘管(10)的后端与第二手柄固定连接,导流管和牵引丝贯穿通过鞘管(10);牵引丝的前端固定有切割刀(13),牵引丝的后端与手柄部中的电极管(9)连接,通过前后移动电极管(9)从而带动切割刀(13)从鞘管(10)前端伸出和缩回;导流管的前端固定有注射针(12),导流管的后端与手柄部中的注射管(8)连接,通过前后移动注射管(8)从而带动注射针(12)从鞘管(10)前端伸出和缩回;The rear end of the sheath (10) is fixedly connected with the second handle, the guide tube and the traction wire pass through the sheath (10); the front end of the traction wire is fixed with a cutting knife (13), and the rear end of the traction wire is in the handle The electrode tube (9) is connected, and the cutting knife (13) is protruded and retracted from the front end of the sheath (10) by moving the electrode tube (9) back and forth; the front end of the draft tube is fixed with an injection needle (12) and guide The rear end of the flow tube is connected with the injection tube (8) in the handle, and the injection tube (8) is moved back and forth to drive the injection needle (12) to extend and retract from the front end of the sheath (10);
    其特征是:第二手柄的前端设有端帽(4),端帽(4)上固定有电极(15),电极管(9) 和/或牵引丝贯穿端帽(4),电极(15)通过电刷与电极管(9) 和/或牵引丝接触导电;注射管(8)贯穿第二手柄并与第一手柄(1)固定连接,第一手柄(1)前后移动从而带动注射管(8)和导流管前后移动。It is characterized in that: the front end of the second handle is provided with an end cap (4), an electrode (15) is fixed on the end cap (4), the electrode tube (9) and/or the pulling wire penetrates the end cap (4), the electrode (15 ) The electric brush is in contact with the electrode tube (9) and/or the traction wire to conduct electricity; the injection tube (8) penetrates the second handle and is fixedly connected to the first handle (1), and the first handle (1) moves back and forth to drive the injection tube (8) Move the guide tube back and forth.
  2. 根据权利要求1所述的内窥镜器械的联动结构,其特征是:所述第二手柄包括手柄主体(2)和手柄侧盖(3),手柄侧盖(3)的前端设置所述端帽(4),端帽(4)与所述手柄侧盖(3)之间通过卡接、过盈配合或者螺纹连接,手柄侧盖(3)的后端固定手柄主体(2),手柄主体(2)的后端与第一手柄(1) 插套滑动连接,第一手柄(1)上设有注射接头,所述传动组件安装在手柄侧盖(3)内。The linkage structure of endoscopic instruments according to claim 1, wherein the second handle includes a handle body (2) and a handle side cover (3), and the front end of the handle side cover (3) is provided with the end The cap (4), the end cap (4) and the handle side cover (3) are connected by snap connection, interference fit or threaded connection, the rear end of the handle side cover (3) fixes the handle body (2), the handle body The rear end of (2) is slidably connected with the insert sleeve of the first handle (1), the first handle (1) is provided with an injection joint, and the transmission assembly is installed in the handle side cover (3).
  3. 根据权利要求1所述的内窥镜器械的联动结构,其特征是:所述传动组件包括第一齿架(5)和第二齿架(6),第一齿架(5)和第二齿架(6)上均设有条形齿,且第一齿架(5)和第二齿架(6)滑动设置在手柄侧盖(3)内,注射管(8)与第一齿架(5)固定连接,电极管(9)与第二齿架(6)固定连接,第一齿架(5)和第二齿架(6)之间通过齿轮传动连接。The linkage structure of endoscopic instruments according to claim 1, characterized in that: the transmission assembly includes a first rack (5) and a second rack (6), a first rack (5) and a second rack (5). The rack (6) is provided with bar-shaped teeth, and the first rack (5) and the second rack (6) are slidably arranged in the handle side cover (3), the injection tube (8) and the first rack (5) Fixed connection, the electrode tube (9) is fixedly connected with the second rack (6), and the first rack (5) and the second rack (6) are connected by gear transmission.
  4. 根据权利要求3所述的内窥镜器械的联动结构,其特征是:第一齿架(5)和第二齿架(6)之间通过齿轮组(7)传动连接,该齿轮组(7)包括至少两个齿轮,通过齿轮组(7)的传动作用使电极管(9)和注射管(8)向相反方向运动。The linkage structure of endoscopic instruments according to claim 3, characterized in that: the first gear carrier (5) and the second gear carrier (6) are connected in transmission through a gear set (7), the gear set (7) ) Includes at least two gears, and the electrode tube (9) and the injection tube (8) move in opposite directions through the transmission action of the gear set (7).
  5. 根据权利要求4所述的内窥镜器械的联动结构,其特征是:所述齿轮组(7)包括同轴转动的第一齿轮(16)和第二齿轮(17),第一齿轮(16)与第一齿架(5)上的条形齿相啮合,第二齿轮(17)与第二齿架(6)上的条形齿相啮合。The linkage structure of endoscopic instruments according to claim 4, characterized in that: the gear set (7) comprises a first gear (16) and a second gear (17) that rotate coaxially, and the first gear (16) ) Is meshed with the bar teeth on the first rack (5), and the second gear (17) is meshed with the bar teeth on the second rack (6).
  6. 根据权利要求5所述的内窥镜器械的联动结构,其特征是:第一齿轮(16)和第二齿轮(17)通过连轴(18)固定连接,连轴(18)以能够转动的方式安装在第二手柄内。The linkage structure of endoscopic instruments according to claim 5, characterized in that: the first gear (16) and the second gear (17) are fixedly connected by a connecting shaft (18), and the connecting shaft (18) is capable of rotating The way is installed in the second handle.
  7. 根据权利要求5所述的内窥镜器械的联动结构,其特征是:所述第一齿轮(16)的外径大于所述第二齿轮(17)的外径。The linkage structure of endoscopic instruments according to claim 5, characterized in that the outer diameter of the first gear (16) is larger than the outer diameter of the second gear (17).
  8. 根据权利要求3所述的内窥镜器械的联动结构,其特征是:所述第一齿架(5)和所述第二齿架(6)均通过导轨、导槽或者导向杆的方式滑动设置在第二手柄内。The linkage structure of endoscopic instruments according to claim 3, characterized in that: the first rack (5) and the second rack (6) both slide by means of guide rails, guide grooves or guide rods Set in the second handle.
  9. 根据权利要求1所述的内窥镜器械的联动结构,其特征是:所述切割刀(13)和注射针(12)并列设置在鞘管(10)的前端。The linkage structure of endoscopic instruments according to claim 1, characterized in that the cutting knife (13) and the injection needle (12) are arranged side by side at the front end of the sheath (10).
  10. 根据权利要求1所述的内窥镜器械的联动结构,其特征是:所述注射针(12)贯穿所述切割刀(13)。The linkage structure of an endoscopic instrument according to claim 1, wherein the injection needle (12) penetrates the cutting knife (13).
  11. 一种内窥镜器械,其特征是:包括如权利要求1至10中任一项所述的一种内窥镜器械的联动结构。An endoscopic instrument, characterized in that it comprises the linkage structure of an endoscopic instrument according to any one of claims 1 to 10.
PCT/CN2019/126561 2019-05-28 2019-12-19 Endoscopic instrument and linkage structure thereof WO2020238172A1 (en)

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