技术领域technical field
本发明属于医疗器械技术领域，具体涉及一种用于上尿路疾病诊断和治疗的微创手术内窥镜。The invention belongs to the technical field of medical devices, and in particular relates to a minimally invasive surgical endoscope used for diagnosis and treatment of upper urinary tract diseases.
背景技术Background technique
输尿管镜是一种借助特殊器械在泌尿系统上尿路内进行诊断和疾病治疗的内窥镜，它不需再在人体作大切口，明显减少对组织的损伤，从而加快机体恢复，缩短疗程，提高疗效，是内窥镜技术上的重要发展，它在临床上的应用，改变了长期以来输尿管、肾盂、肾盏部位难于进行直观检查及上尿路疾患必须行开放手术治疗的传统概念。目前应用的输尿管镜有硬性输尿管镜和软性输尿管镜两类，硬性输尿管镜有良好的方向性和便于操作、导入的优点，但是存在视野和操作盲区，软性输尿管镜虽然可以消除视野和操作盲区，但是镜体柔软，可控性差，操作困难，学习曲线长，且价格昂贵，容易损坏。Ureteroscopy is an endoscope that uses special instruments to diagnose and treat diseases in the upper urinary tract of the urinary system. It does not need to make large incisions on the human body, which significantly reduces damage to tissues, thereby speeding up the recovery of the body and shortening the course of treatment. Improving the curative effect is an important development of endoscopic technology. Its clinical application has changed the long-standing traditional concept that the ureter, renal pelvis, and calyces are difficult to visually inspect and that upper urinary tract diseases must be treated with open surgery. There are two types of ureteroscopes currently in use: rigid ureteroscopes and flexible ureteroscopes. Rigid ureteroscopes have the advantages of good directionality and easy operation and introduction, but there are blind spots in vision and operation. Although soft ureteroscopes can eliminate visual field and operation Blind zone, but the mirror body is soft, poor controllability, difficult to operate, long learning curve, expensive and easy to damage.
本发明人一直致力于根据临床实际使用情况改进输尿管镜的设计方案，寻找一种既便于将镜体导入人体泌尿系统、镜头又具有良好灵活性的输尿管镜。本发明人于2003年11月21日申请了中国专利申请CN200310115365.0，发明名称为“末端可弯曲型输尿管镜”，公开号为CN1543907A，公开的一种输尿管镜，其镜体本身是硬性结构，镜体的末端也是硬性结构，但为了消除观察和操作的盲区，将镜体的末端设计成两段，并由可控制转动的关节相连接，以实现镜体的末端可向两个相对方向各弯曲180°。The inventor has been devoting himself to improving the design of the ureteroscope according to the actual clinical use, looking for a ureteroscope that is convenient for introducing the mirror body into the urinary system of the human body and has good flexibility of the lens. The inventor applied for a Chinese patent application CN200310115365.0 on November 21, 2003. The title of the invention is "end-bendable ureteroscope" and the publication number is CN1543907A. The disclosed ureteroscope has a rigid structure. , the end of the mirror body is also a rigid structure, but in order to eliminate the blind area of observation and operation, the end of the mirror body is designed into two sections, which are connected by a joint that can control the rotation, so that the end of the mirror body can move in two opposite directions. Each bend 180°.
本发明人又于2006年9月28日申请了中国专利申请CN200610152517.8，发明名称为“伸缩型末端可弯曲型输尿管镜”，公开号为CN101152074A，公开的一种输尿管镜，其镜体本身是硬性结构，但镜体的末端设计为与传统软性输尿管镜的末端相同，可向两个相对方向各弯曲0-180°，且在输尿管镜到达肾盂或受险部位前，软性的镜体末端是完全没入硬性镜体内；当进行诊断或治疗操作时，软性的镜体末端才从硬性镜体内伸出，并通过操作手柄实现弯曲。The inventor applied for a Chinese patent application CN200610152517.8 on September 28, 2006. The title of the invention is "telescopic end-bendable ureteroscope" and the publication number is CN101152074A. It is a rigid structure, but the end of the mirror body is designed to be the same as the end of the traditional flexible ureteroscope, which can be bent 0-180° in two opposite directions, and before the ureteroscope reaches the renal pelvis or the injured part, the soft endoscope The end of the body is completely submerged in the rigid endoscope; when performing diagnostic or therapeutic operations, the end of the soft end of the endoscope protrudes from the rigid endoscope and is bent through the operating handle.
上述两种输尿管镜的设计都希望能够结合硬性输尿管镜和软性输尿管镜的优点，克服硬性输尿管镜和软性输尿管镜的缺点，但临床使用下来，前者由于镜体的末端为硬性结构，其弯曲角度不能任意调整；后者由于软性的镜体末端要完全没入硬性镜体内，直接影响了硬性镜体内部原来就有的导光束、进口管道等的设置和排放，且对软性的镜体末端的弯曲角度控制也没有具体的技术方案。The above two designs of ureteroscopes hope to combine the advantages of rigid ureteroscopes and flexible ureteroscopes, and overcome the shortcomings of rigid ureteroscopes and flexible ureteroscopes. The bending angle cannot be adjusted arbitrarily; the latter directly affects the setting and discharge of the original light guide and inlet pipes inside the rigid mirror body because the end of the soft mirror body must be completely submerged in the rigid mirror body. There is no specific technical solution for the bending angle control of the body end.
发明内容Contents of the invention
本发明的目的是提供一种既便于将镜体导入人体泌尿系统、镜头又具有良好灵活性的具有伸缩型外鞘的末端可弯曲型输尿管镜。The purpose of the present invention is to provide a bendable terminal ureteroscope with a telescopic outer sheath which is convenient for introducing the lens body into the urinary system of the human body, and the lens has good flexibility.
为解决上述技术问题，本发明提供了一种伸缩型外鞘的末端可弯曲型输尿管镜，由内窥镜和伸缩鞘（也称伸缩型外鞘）组成，所述的内窥镜包括内窥镜本体以及与内窥镜本体依次连接的刚性段、可弯段及镜头（即物镜）；In order to solve the above technical problems, the present invention provides a flexible end ureteroscope with a telescopic sheath, which is composed of an endoscope and a telescopic sheath (also called a telescopic sheath), and the endoscope includes an endoscope The mirror body and the rigid section, bendable section and lens (i.e. the objective lens) sequentially connected to the endoscope body;
所述的伸缩鞘为圆柱形空心导管，套设在刚性段的外侧，伸缩鞘的一端与内窥镜本体连接；The telescopic sheath is a cylindrical hollow catheter, which is sleeved on the outside of the rigid section, and one end of the telescopic sheath is connected to the endoscope body;
所述的内窥镜本体包括：手柄、手柄内的控制机构、手柄上的导光束接口、进水接口，以及手柄末端的目镜和焦距调节旋钮等。The endoscope body includes: a handle, a control mechanism in the handle, a light guide port on the handle, a water inlet port, an eyepiece and a focus adjustment knob at the end of the handle, and the like.
优选的，所述伸缩鞘的一端通过安装机构与内窥镜本体相连；Preferably, one end of the telescopic sheath is connected to the endoscope body through a mounting mechanism;
优选的，所述的控制机构设置在内窥镜本体的手柄内的控制腔内，所述的控制机构包括回转半径调节单元及镜头偏转方向调节单元。Preferably, the control mechanism is arranged in the control chamber of the handle of the endoscope body, and the control mechanism includes a radius of gyration adjustment unit and a lens deflection direction adjustment unit.
优选的，所述回转半径调节单元包括：控制片，所述控制片设置在所述控制腔内；以及控制线，所述控制线一端与所述控制片连接，所述控制线的另一端设置在所述刚性段及所述可弯段内。Preferably, the radius of gyration adjustment unit includes: a control piece, the control piece is arranged in the control cavity; and a control line, one end of the control line is connected to the control piece, and the other end of the control line is set within the rigid section and the bendable section.
优选的，所述镜头偏转方向调节单元包括：旋转块，所述旋转块活动固定在交换轴上，在所述旋转块的一端设有调节钮；交换轴，所述交换轴设置在所述旋转块的一侧，所述交换轴与所述刚性段贴合；以及调节线，所述调节线设置在所述旋转块的两端，所述调节线经所述交换轴后交叉并贴合设置在所述刚性段内壁上。Preferably, the lens deflection direction adjustment unit includes: a rotating block, the rotating block is movably fixed on the exchange shaft, and an adjustment button is provided at one end of the rotating block; the exchange shaft is arranged on the rotating shaft One side of the block, the exchange shaft fits the rigid section; and an adjustment line, the adjustment line is arranged at both ends of the rotating block, and the adjustment line crosses and fits after passing through the exchange shaft on the inner wall of the rigid section.
优选的，所述交换轴的外直径小于等于所述刚性段的内直径。Preferably, the outer diameter of the exchange shaft is smaller than or equal to the inner diameter of the rigid section.
优选的，所述调节线的长度延伸至所述刚性段的末端。Preferably, the length of the adjustment wire extends to the end of the rigid section.
优选的，所述调节线的材质为记忆金属丝。Preferably, the adjustment wire is made of memory metal wire.
优选的，所述安装机构包括：安装段；限位滚珠，所述限位滚珠设置在所述安装段上；以及限位套，所述限位套环接在所述伸缩鞘与所述内窥镜的连接处，其中所述限位套通过限位槽卡接在所述限位滚珠上。Preferably, the installation mechanism includes: an installation section; a limit ball, the limit ball is arranged on the installation section; and a limit sleeve, the limit sleeve is connected between the telescopic sheath and the inner The joint of the sight glass, wherein the limiting sleeve is clamped on the limiting ball through the limiting groove.
优选的，所述限位滚珠的数量为两个，两个所述限位滚珠分别设置在所述安装段的两端。Preferably, there are two limit balls, and the two limit balls are respectively arranged at both ends of the installation section.
本发明伸缩型外鞘的末端可弯曲型输尿管镜的控制形式与现有技术完全不同，本发明伸缩型外鞘的末端可弯曲型输尿管镜前端可弯段弯曲角度控制形式采用记忆金属丝进行控制，不同于传统的用钢丝拉动蛇骨式的控制形式，本发明的控制形式可以使得可弯段的弯曲角度更大，而弯曲的回转半径更小，即突破了蛇骨控制结构的弯曲角度与弯曲半径的瓶颈。The control form of the end-bendable ureteroscope of the telescopic outer sheath of the present invention is completely different from that of the prior art, and the bending angle control form of the end-bendable section of the end-bendable type ureteroscope of the present invention is controlled by a memory wire. , different from the traditional control form of pulling the snake bone with a steel wire, the control form of the present invention can make the bending angle of the bendable section larger, and the bending radius of gyration is smaller, that is, it breaks through the bending angle and the bending angle of the snake bone control structure. The bottleneck of the bend radius.
本发明采用的伸缩型外鞘结构的设计，可方便内窥镜的进出，而且这种外鞘与内窥镜相连接，使用时不需用手扶着外鞘，或关注外鞘是否退出，本发明的伸缩性外鞘与内窥镜相配合，简化了操作，确保了安全。The design of the retractable outer sheath structure adopted by the present invention can facilitate the entry and exit of the endoscope, and this outer sheath is connected with the endoscope, so it is not necessary to hold the outer sheath with hands or pay attention to whether the outer sheath is withdrawn or not. The flexible outer sheath of the present invention cooperates with the endoscope, which simplifies the operation and ensures the safety.
本发明伸缩型外鞘的末端可弯曲型输尿管镜加入了回转半径调节钮，该结构可以帮助内窥镜镜头顺利的进入肾脏上、中、下盏，而不像传统内窥镜那样只具有单一的回转半径，在进入特定角度的肾盏时，只能通过将内窥镜整体插入或拔出来试探性的调整回转半径，这样不但效率低而且会对内窥镜寿命造成影响。The bendable ureteroscope at the end of the telescopic outer sheath of the present invention adds a turning radius adjustment button, which can help the endoscope lens enter the upper, middle and lower cups of the kidney smoothly, instead of only having a single When entering the renal calices at a specific angle, the radius of gyration can only be adjusted tentatively by inserting or pulling out the endoscope as a whole, which is not only inefficient but also affects the life of the endoscope.
本发明伸缩型外鞘的末端可弯曲型输尿管镜结构简单，使用方便、成本低廉，内窥镜弯曲角度可调节范围更大、更便捷，使经尿道输尿管镜检查与治疗手术变得安全而容易。The flexible ureteroscope at the end of the telescopic outer sheath of the present invention is simple in structure, convenient to use, and low in cost, and the adjustable range of the bending angle of the endoscope is larger and more convenient, making transurethral ureteroscopy examination and treatment operation safe and easy .
附图说明Description of drawings
图1为本发明伸缩型外鞘的末端可弯曲型输尿管镜结构示意图；Fig. 1 is the structural schematic diagram of the terminal flexible ureteroscope of telescoping outer sheath of the present invention;
图2为本发明伸缩型外鞘的末端可弯曲型输尿管镜伸缩鞘与内窥镜本体连接处剖视图；Fig. 2 is a cross-sectional view of the connection between the terminal flexible ureteroscope telescopic sheath and the endoscope body of the telescopic outer sheath of the present invention;
图3为本发明伸缩型外鞘的末端可弯曲型输尿管镜限位机构局部放大图；Fig. 3 is a partially enlarged view of the end-bendable ureteroscope stop mechanism of the telescopic sheath of the present invention;
图4为本发明伸缩型外鞘的末端可弯曲型输尿管镜镜头偏转方向调节单元工作示意图一；Fig. 4 is a working schematic diagram 1 of the end-bendable ureteroscope lens deflection direction adjustment unit of the telescopic outer sheath of the present invention;
图5为本发明伸缩型外鞘的末端可弯曲型输尿管镜镜头偏转方向调节单元工作示意图二；Fig. 5 is a working schematic diagram II of the end-bendable ureteroscope lens deflection direction adjustment unit of the telescopic outer sheath of the present invention;
图6为本发明伸缩型外鞘的末端可弯曲型输尿管镜镜头偏转方向调节单元工作示意图三；Fig. 6 is a working schematic diagram III of the end-bendable ureteroscope lens deflection direction adjustment unit of the telescopic outer sheath of the present invention;
图7为本发明伸缩型外鞘的末端可弯曲型输尿管镜镜头回转半径调节单元工作示意图一；Fig. 7 is a working schematic diagram 1 of the end-bendable ureteroscope lens rotation radius adjustment unit of the telescopic outer sheath of the present invention;
图8为本发明伸缩型外鞘的末端可弯曲型输尿管镜镜头回转半径调节单元工作示意图二。Fig. 8 is a working schematic diagram II of the end-bendable ureteroscope lens rotation radius adjustment unit of the telescopic outer sheath of the present invention.
本发明伸缩型外鞘的末端可弯曲型输尿管镜附图中附图标记说明：Explanation of the reference signs in the drawings of the end flexible ureteroscope of the telescopic outer sheath of the present invention:
1-安装段 2-手柄 3-控制腔1-Installation section 2-Handle 3-Control cavity
4-伸缩鞘 5-可弯段 6-镜头4-Telescopic sheath 5-Bendable section 6-Lens
7-导光束接口 8-目镜 9-焦距调节旋钮7- Beam guide interface 8- Eyepiece 9- Focus adjustment knob
10-进水接口 11-旋转块 12-调节钮10-Water inlet port 11-Rotary block 12-Adjustment knob
13-交换轴 14-调节线 15-限位滚珠13-Exchange shaft 14-Adjustment line 15-Limiting ball
16-限位套 17-限位槽 18-控制片16-Limiting sleeve 17-Limiting groove 18-Control piece
19-控制线 20-刚性段 21-内窥镜本体19-Control line 20-Rigid section 21-Endoscope body
具体实施方式Detailed ways
下面结合附图和实施例对本发明作进一步详细说明，但本发明的实施不仅限于此。The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, but the implementation of the present invention is not limited thereto.
实施例1：Example 1:
如图所示，一种伸缩型外鞘的末端可弯曲型输尿管镜，它是由内窥镜和伸缩鞘4组成，所述的内窥镜包括内窥镜本体21以及与内窥镜本体依次连接的刚性段20、可弯段5及镜头6；As shown in the figure, a flexible ureteroscope with a telescopic outer sheath is composed of an endoscope and a telescopic sheath 4. The endoscope includes an endoscope body 21 and an endoscope body in sequence. Connected rigid section 20, bendable section 5 and lens 6;
所述的伸缩鞘4为圆柱形空心导管，套设在刚性段20的外侧，伸缩鞘的一端与内窥镜本体连接；The telescopic sheath 4 is a cylindrical hollow catheter, which is sleeved on the outside of the rigid section 20, and one end of the telescopic sheath is connected to the endoscope body;
所述的内窥镜本体包括：手柄2、手柄内的控制机构、手柄上的导光束接口7、进水接口10，以及手柄末端的目镜8和焦距调节旋钮9。The endoscope body includes: a handle 2, a control mechanism in the handle, a light guide port 7 on the handle, a water inlet port 10, an eyepiece 8 and a focus adjustment knob 9 at the end of the handle.
所述的伸缩鞘4的一端通过安装机构与内窥镜本体相连。One end of the telescopic sheath 4 is connected with the endoscope body through a mounting mechanism.
所述的控制机构设置在内窥镜本体的手柄内的控制腔3内，所述的控制机构包括回转半径调节单元及镜头偏转方向调节单元。The control mechanism is arranged in the control cavity 3 in the handle of the endoscope body, and the control mechanism includes a radius of gyration adjustment unit and a lens deflection direction adjustment unit.
所述的安装机构包括：Described installation mechanism comprises:
安装段1；Install section 1;
限位滚珠15，所述限位滚珠设置在所述安装段上；以及Limiting balls 15, the limiting balls are arranged on the installation section; and
限位套16，所述限位套环接在所述伸缩鞘与所述内窥镜的连接处，其中所述限位套通过限位槽17卡接在所述限位滚珠上。A limit sleeve 16, the limit sleeve ring is connected to the connection between the telescopic sheath and the endoscope, wherein the limit sleeve is clamped on the limit ball through the limit groove 17.
实施例2：Example 2:
一种伸缩型外鞘的末端可弯曲型输尿管镜，其余同实施例1，所述的回转半径调节单元包括：A flexible ureteroscope at the end of a telescopic outer sheath, the rest of which are the same as in Embodiment 1, and the radius of gyration adjustment unit includes:
控制片18，所述控制片设置在所述控制腔3内；以及a control piece 18, the control piece is arranged in the control chamber 3; and
控制线19，所述控制线一端与所述控制片连接，所述控制线的另一端设置在所述刚性段20及所述可弯段5内。A control line 19 , one end of the control line is connected to the control piece, and the other end of the control line is arranged in the rigid section 20 and the bendable section 5 .
所述的镜头偏转方向调节单元包括：The lens deflection direction adjustment unit includes:
旋转块11，所述旋转块活动固定在交换轴上，在所述旋转块的一端设有调节钮；Rotating block 11, the rotating block is movably fixed on the exchange shaft, and an adjusting knob is provided at one end of the rotating block;
交换轴13，所述交换轴设置在所述旋转块的一侧，所述交换轴与所述刚性段贴合；以及An exchange shaft 13, the exchange shaft is arranged on one side of the rotating block, and the exchange shaft is attached to the rigid section; and
调节线14，所述调节线设置在所述旋转块的两端，所述调节线经所述交换轴后交叉并贴合设置在所述刚性段内壁上。The adjustment line 14 is arranged at both ends of the rotating block, and after passing through the exchange shaft, the adjustment line intersects and fits on the inner wall of the rigid section.
实施例3：Example 3:
一种伸缩型外鞘的末端可弯曲型输尿管镜，其余同实施例2，所述交换轴13的外直径小于等于所述刚性段20的内直径。A flexible end ureteroscope with a telescopic outer sheath, the rest is the same as that in Embodiment 2, the outer diameter of the exchange shaft 13 is less than or equal to the inner diameter of the rigid section 20 .
所述调节线14的长度延伸至所述刚性段的末端，调节线的材质为记忆金属丝。The length of the adjustment wire 14 extends to the end of the rigid section, and the material of the adjustment wire is memory metal wire.
实施例4：Example 4:
一种伸缩型外鞘的末端可弯曲型输尿管镜，其余同实施例3，所述限位滚珠15的数量为两个，两个所述限位滚珠分别设置在所述安装段1的两端。A flexible ureteroscope at the end of a telescopic outer sheath, the rest of which are the same as in Embodiment 3, the number of the limit balls 15 is two, and the two limit balls are respectively arranged at both ends of the installation section 1 .
实施例5：Example 5:
如图所示，实施例2的一种伸缩型外鞘的末端可弯曲型输尿管镜，由伸缩鞘4和内窥镜组成，在安装段1的两端分别设置限位滚珠15；在伸缩鞘4与内窥镜的连接处环接限位套16，限位套16通过限位槽17卡接在限位滚珠15上。当限位套16与前端限位滚珠15相匹配时，可弯段5可以伸出伸缩鞘4，当限位套16与后端限位滚珠15相匹配时，可弯段5恰好可以收进伸缩鞘4内；内窥镜本体21上的手柄2，用于握持；进水接口10设置在手柄2上，用来连接进水管、三通管等；回转半径调节单元及镜头偏转方向调节单元设置在控制腔3内，回转半径调节单元用于调节可弯段的弯曲半径；镜头偏转方向调节单元用于控制内窥镜镜头6的偏转方向及偏转角度。还包括用于连接光源主机的导光束接口7、用于观察手术野的内窥镜镜头6以及用于连接摄像系统的目镜8和焦距调节旋钮9。As shown in the figure, a flexible ureteroscope at the end of a telescopic outer sheath of Embodiment 2 is composed of a telescopic sheath 4 and an endoscope, and limit balls 15 are respectively arranged at both ends of the installation section 1; 4. A limit sleeve 16 is looped at the junction with the endoscope, and the limit sleeve 16 is clamped on the limit ball 15 through the limit groove 17. When the limit sleeve 16 matches the front end limit ball 15, the bendable section 5 can stretch out the telescopic sheath 4, and when the limit cover 16 matches the rear end limit ball 15, the bendable section 5 can just be retracted In the retractable sheath 4; the handle 2 on the endoscope body 21 is used for holding; the water inlet port 10 is arranged on the handle 2, which is used to connect the water inlet pipe, the tee pipe, etc.; the radius of gyration adjustment unit and the adjustment of the lens deflection direction The unit is arranged in the control cavity 3 , the radius of gyration adjustment unit is used to adjust the bending radius of the bendable section; the lens deflection direction adjustment unit is used to control the deflection direction and deflection angle of the endoscope lens 6 . It also includes a light guide interface 7 for connecting to the light source host, an endoscope lens 6 for observing the operating field, an eyepiece 8 and a focus adjustment knob 9 for connecting to the camera system.
刚性伸缩鞘4与柔性可弯段5相连接，伸缩鞘4具有一定的弹性，在内窥镜插入人体时，便于使用者对内窥镜的进入方向、插入力度的精确调节，同时又降低意外损伤情况的发生率；可弯段5可通过搬动镜头6偏转方向调节钮12来调节，以满足不同位置的手术需求。The rigid telescopic sheath 4 is connected with the flexible bendable section 5. The telescopic sheath 4 has a certain degree of elasticity. When the endoscope is inserted into the human body, it is convenient for the user to precisely adjust the direction of entry and the insertion force of the endoscope, while reducing accidents. Incidence of injuries; the bendable section 5 can be adjusted by moving the lens 6 and deflecting the direction adjustment knob 12 to meet the operation requirements of different positions.
使用时，先将摄像系统与目镜8衔接好，再将导光束与导光束接口7衔接好，以及在进水接口10上连接好进水管；将伸缩鞘4向内窥镜下端滑动，使得限位套16与后端限位滚珠15相配合，此时，可弯段5完全收入伸缩鞘4内，刚性段20与可弯段5及伸缩鞘4共同组合形成一个直线形的内窥镜，根据手术常规在内窥镜摄像系统的引导下将内窥镜镜头6乃至刚性段20插入人体尿道，经过输尿管膀胱开口进入输尿管内，直至肾盂内，当需要进入肾脏下盏时，由于需要较小的回转半径而较大的偏转角度，可调节回转半径调节单元，向上滑动伸缩鞘4手柄2使得套口与前端限位滚珠15相配合，此时，可弯段5伸出伸缩鞘4，可根据手术目标，既左侧肾脏或右侧肾脏，搬动处于初始状态的镜头6偏转方向调节钮12；当内窥镜需要进入肾脏中、上盏时，由于需要较大的回转半径而较小的偏转角度，可将回转半径调节单元调至需要的状态，重复上述操作即可实现内窥镜镜头6的转动。When in use, first connect the camera system with the eyepiece 8, then connect the light guide and the light guide interface 7, and connect the water inlet pipe on the water inlet interface 10; slide the telescopic sheath 4 toward the lower end of the endoscope, so that the limit The bit sleeve 16 cooperates with the rear-end limiting ball 15. At this time, the bendable section 5 is completely received in the telescopic sheath 4, and the rigid section 20 is combined with the bendable section 5 and the telescopic sheath 4 to form a linear endoscope. Under the guidance of the endoscopic camera system according to the operation routine, the endoscopic lens 6 and even the rigid section 20 are inserted into the urethra of the human body, and enter the ureter through the ureteral bladder opening until the renal pelvis. The radius of gyration and the large deflection angle can be adjusted by adjusting the radius of gyration adjustment unit, sliding the handle 2 of the telescopic sheath 4 upwards so that the sleeve mouth matches the front limit ball 15, at this time, the bendable section 5 stretches out the telescopic sheath 4, and can According to the operation target, the left kidney or the right kidney, move the lens 6 in the initial state to adjust the deflection direction adjustment knob 12; The deflection angle can be adjusted to the desired state by adjusting the radius of gyration adjustment unit, and the rotation of the endoscope lens 6 can be realized by repeating the above operations.
回转半径调节单元包括：控制片18，控制片18设置在控制腔3内；以及控制线19，控制线19一端与控制片18连接，控制线19的另一端设置在刚性段20及可弯段5内。The radius of gyration adjustment unit includes: a control piece 18, the control piece 18 is arranged in the control chamber 3; and a control line 19, one end of the control line 19 is connected to the control piece 18, and the other end of the control line 19 is arranged on the rigid section 20 and the bendable section within 5.
镜头偏转方向调节单元包括：旋转块11，旋转块11活动固定在交换轴上，在旋转块11的一端设有调节钮12；交换轴13，交换轴13设置在旋转块11的一侧，交换轴13与刚性段20贴合；以及调节线14，调节线14设置在旋转块11的两端，调节线14经交换轴13后交叉并贴合设置在刚性段20内壁上。交换轴13的外直径小于等于刚性段20的内直径。调节线14的长度延伸至刚性段20的末端。旋转块11，旋转块11活动固定在交换轴上，在旋转块11的一端设有调节钮12；交换轴13，交换轴13设置在旋转块11的一侧，交换轴13与刚性段20贴合；以及调节线14，调节线14设置在旋转块11的两端，调节线14经交换轴13后交叉并贴合设置在刚性段20内壁上。The lens deflection direction adjustment unit includes: a rotating block 11, the rotating block 11 is movably fixed on the exchange shaft, and an adjusting knob 12 is arranged at one end of the rotating block 11; The shaft 13 is attached to the rigid section 20 ; and the adjustment line 14 is arranged at both ends of the rotating block 11 , and the adjustment line 14 crosses and is attached to the inner wall of the rigid section 20 after passing through the exchange shaft 13 . The outer diameter of the exchange shaft 13 is smaller than or equal to the inner diameter of the rigid section 20 . The length of the adjustment wire 14 extends to the end of the rigid section 20 . Rotating block 11, rotating block 11 is movably fixed on the exchange shaft, an adjustment knob 12 is provided at one end of the rotating block 11; exchange shaft 13, the exchange shaft 13 is arranged on one side of the rotating block 11, and the exchange shaft 13 is attached to the rigid section 20 and the adjustment line 14, the adjustment line 14 is arranged at both ends of the rotating block 11, the adjustment line 14 crosses after passing through the exchange shaft 13 and fits on the inner wall of the rigid section 20.
镜头偏转方向的调节钮12通过控制嵌在镜体内的形状记忆金属丝调节线14进出可弯段来实现内窥镜镜头6的偏转动作，其原理为：当镜头偏转方向的调节钮12处于原始状态时，两条形状记忆金属丝调节线14末端和均收回到刚性段20内，此时可弯段5不弯曲，当向上搬动镜头偏转方向的调节钮12时，形状记忆金属丝调节线14末端进入内窥镜可弯段5，并使得可弯段5弯曲。The adjustment button 12 of the lens deflection direction realizes the deflection action of the endoscope lens 6 by controlling the shape memory wire adjustment wire 14 embedded in the mirror body to enter and exit the bendable section. state, the ends of the two shape-memory metal wire adjustment wires 14 are retracted into the rigid section 20, and the bendable section 5 is not bent at this time. The end of 14 enters the bendable section 5 of the endoscope and makes the bendable section 5 bend.
本发明的内窥镜弯曲角度调节范围为-270度～+270度、可弯段回转半径调节范围为1cm～2.25cm，本发明的内窥镜镜头可顺利的进入肾脏上、中、下盏。The adjustment range of the bending angle of the endoscope of the present invention is -270 degrees to +270 degrees, and the adjustment range of the turning radius of the bendable section is 1 cm to 2.25 cm. The endoscope lens of the present invention can smoothly enter the upper, middle and lower cups of the kidney .
以上已对本发明创造的较佳实施例进行了具体说明，但本发明创造并不限于所述实施例，熟悉本领域的技术人员在不违背本发明创造精神的前提下还可作出种种的等同的变型或替换，这些等同的变型或替换均包含在本申请权利要求所限定的范围内。The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments, and those skilled in the art can also make various equivalents without violating the spirit of the present invention. Modifications or replacements, these equivalent modifications or replacements are all included within the scope defined by the claims of the present application.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301252.3ACN103393395B (en) | 2012-12-05 | 2013-07-17 | Ureteroscope with extensible sheath with bendable tail end |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105159392 | 2012-12-05 | ||
| CN201210515939.2 | 2012-12-05 | ||
| CN 201210515939CN102961114A (en) | 2012-12-05 | 2012-12-05 | Ureteroscope with flexible end and retractable sheath |
| CN201310301252.3ACN103393395B (en) | 2012-12-05 | 2013-07-17 | Ureteroscope with extensible sheath with bendable tail end |
| Publication Number | Publication Date |
|---|---|
| CN103393395A CN103393395A (en) | 2013-11-20 |
| CN103393395Btrue CN103393395B (en) | 2015-03-04 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210515939PendingCN102961114A (en) | 2012-12-05 | 2012-12-05 | Ureteroscope with flexible end and retractable sheath |
| CN201310301252.3AExpired - Fee RelatedCN103393395B (en) | 2012-12-05 | 2013-07-17 | Ureteroscope with extensible sheath with bendable tail end |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210515939PendingCN102961114A (en) | 2012-12-05 | 2012-12-05 | Ureteroscope with flexible end and retractable sheath |
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