技术领域technical field
本实用新型涉及一种带导芯的十二指肠营养管，尤其是一种十二指肠营养管及可调节视频导芯，属于医疗器械的技术领域。The utility model relates to a duodenum nutrition tube with a guide core, in particular to a duodenum nutrition tube and an adjustable video guide core, belonging to the technical field of medical equipment.
背景技术Background technique
在胃肠及小肠手术完成时，需经鼻置入十二指肠营养管，置入深度需经过手术吻合口达到下部。术后用于消化道输入营养液，或生理盐水小量滴注刺激肠道蠕动促进康复，或在某些情况下对吻合口部位冲洗。When the gastrointestinal and small intestine operations are completed, a duodenal nutrition tube needs to be inserted through the nose, and the insertion depth needs to reach the lower part through the surgical anastomosis. After the operation, it is used to enter the nutrient solution of the digestive tract, or a small amount of saline infusion to stimulate intestinal peristalsis to promote recovery, or in some cases to wash the anastomotic site.
开放手术中，手术医师在腹腔内可直接通过触摸肠管协助十二指肠营养管置入并通过吻合口。在腹腔镜手术中，由于手术医师无法触摸肠管，十二指肠营养管置入胃部进入肠管难度极大；植入后，对营养管头端是否经过吻合口进入下端的定位也较为困难。In open surgery, the surgeon can directly touch the intestinal tube in the abdominal cavity to assist the insertion of the duodenal feeding tube and pass through the anastomosis. In laparoscopic surgery, since the surgeon cannot touch the intestine, it is extremely difficult to insert the duodenal feeding tube into the stomach and enter the intestine; after implantation, it is also difficult to locate whether the head of the feeding tube enters the lower end through the anastomosis.
以上操作困难的原因是：营养管在消化道内腔，腹腔镜看到只是消化道外壁结构，无法准确判断营养管头端位置；目前十二指肠营养管头端曲度无法调控，即使在腹腔镜下能看到胃部结构，也难以控制置管头端的方向；腹腔镜对营养管是否经由吻合口无法准确定位，只能通过长柄钳轻轻钳夹手感判断。The reasons for the difficulty in the above operations are: the nutrition tube is in the inner cavity of the digestive tract, and the laparoscope only sees the outer wall structure of the digestive tract, so the position of the head end of the nutrition tube cannot be accurately judged; at present, the curvature of the head end of the duodenal nutrition tube cannot be adjusted. The gastric structure can be seen under the microscope, and it is also difficult to control the direction of the tip of the tube; laparoscopy cannot accurately locate whether the nutrition tube passes through the anastomosis, and can only be judged by lightly pinching with long-handled forceps.
在手术中手术医师尚可通过直接或间接方式协助十二指肠营养管置入消化道，在非手术时需要置入十二指肠营养管是则更加困难。通常做法是使用胃镜协助钳夹十二指肠营养管头端缓慢置入，缺点是：1）需要经口咽消化道同时置入十二指肠营养管和较粗的胃镜，患者极为难受；2）胃镜对十二指肠营养管的协助操作是通过胃镜操作孔的操作钳协助完成，操作难度较大；3）胃镜与十二指肠营养管联合使用时，要求腔道直径至少为两者直径的和，加上操作空间，可操作腔道内径较大，无法满足临床需求；4）消化内镜置管时需要专用于充气、冲洗及吸引的腔道，占用原本狭隘的操作空间。During the operation, the surgeon can still directly or indirectly assist the duodenal feeding tube to be placed in the digestive tract, but it is more difficult to place the duodenal feeding tube in non-operative time. The usual practice is to use a gastroscope to assist in clamping the tip of the duodenal feeding tube and inserting it slowly. The disadvantages are: 1) It is necessary to insert the duodenal feeding tube and a thicker gastroscope through the oropharyngeal digestive tract at the same time, which is extremely uncomfortable for the patient; 2) The assisting operation of the gastroscope to the duodenal feeding tube is completed with the help of the operating forceps in the operating hole of the gastroscope, which is difficult to operate; 3) When the gastroscope is used in combination with the duodenal feeding tube, the diameter of the lumen is required to be at least two The sum of diameters of patients, plus the operating space, the inner diameter of the operable lumen is relatively large, which cannot meet the clinical needs; 4) Digestive endoscope catheterization requires a dedicated lumen for inflation, flushing and suction, which occupies the original narrow operating space.
发明内容Contents of the invention
本实用新型的目的是克服现有技术中存在的不足，提供一种十二指肠营养管及可调节视频导芯，其结构简单紧凑，使用方便，能帮助临床医师在各种情况下通过头端可弯曲度调节的视频导芯帮助十二指肠营养管置入达到较细的适当的腔内部位；利用可调节视频导芯与十二指肠营养管的间隙进行充气、冲洗及吸引；并通过头端视频精确轻松置入适宜位置，提高定位效率及准确性，减少置管损伤。The purpose of the utility model is to overcome the deficiencies in the prior art, and provide a duodenal nutrition tube and an adjustable video guide core, which are simple and compact in structure, easy to use, and can help clinicians pass through the head in various situations. The end-bendable video guide core helps the duodenal nutrition tube to be placed in a thinner and appropriate cavity; the gap between the adjustable video guide core and the duodenal nutrition tube is used for inflation, flushing and suction; And through the head-end video, it can be accurately and easily placed in the appropriate position, improving the positioning efficiency and accuracy, and reducing catheter damage.
所述一种十二指肠营养管及可调节视频导芯，包括可调节视频导芯和十二指肠营养管。所述可调节视频导芯视频输出端设置临时锁定接口，用于将套置在可调节视频导芯上的十二指肠营养管锁定并密封连接在可调节视频导芯上；所述可调节视频导芯视频输出端设置用于对可调节视频导芯视频摄入端的曲度进行调节的曲度调节机构。The described duodenal nutrition tube and adjustable video guide core include adjustable video guide core and duodenal nutrition tube. The video output end of the adjustable video guide core is provided with a temporary locking interface for locking and sealingly connecting the duodenal nutrition tube sleeved on the adjustable video guide core to the adjustable video guide core; The video output end of the video guide core is provided with a curvature adjusting mechanism for adjusting the curvature of the video intake end of the adjustable video guide core.
所述可调节视频导芯设置用于为视频摄入端照明的光源及为光源供电的电源。The adjustable video guide core is used to set the light source for illuminating the video intake end and the power supply for the light source.
所述十二指肠营养管尾端设置与十二指肠营养管管腔连通用于冲水、充气及吸引的连接接口。 The tail end of the duodenal nutrition tube is provided with a connection interface for flushing, inflation and suction, which communicates with the lumen of the duodenal nutrition tube.
所述可调节视频导芯视频输出端设置用以显示视频摄入端视频图像的显示屏，所述显示屏与视频输出端有线电连接或无线连接。The video output end of the adjustable video guide core is provided with a display screen for displaying video images of the video input end, and the display screen is wired or wirelessly connected to the video output end.
所述曲度调节机构包括设置在可调节视频导芯内的曲度调节管、嵌置在曲度调节管内的曲度调节索及与可调节视频导芯活动连接用于牵拉曲度调节索的曲度调节钮；所述曲度调节钮通过调节钮固定轴与可调节视频导芯活动连接，曲度调节钮能以调节钮固定轴为中心点转动；所述曲度调节管在可调节视频导芯视频摄入端2长度在2cm-5cm的区段设置若干调节管偏侧孔，在可调节视频导芯视频输出端设置调节索出口；所述曲度调节索沿曲度调节管内腔分布，与可调节视频导芯视频输出端固定连接，在可调节视频导芯视频输出端出调节索出口与曲度调节钮固定连接；所述曲度调节索外径较曲度调节管内径小，所述曲度调节索长度与曲度调节管匹配；调节曲度调节钮活动时能牵动曲度调节索沿曲度调节管长轴通过调节索出口向可调节视频导芯外运动，并牵动调节管偏侧孔间的可调节视频导芯弯曲。The curvature adjustment mechanism includes a curvature adjustment tube arranged in the adjustable video guide core, a curvature adjustment cable embedded in the curvature adjustment tube, and is movably connected with the adjustable video guide core for pulling the curvature adjustment cable The curvature adjustment knob; the curvature adjustment knob is movably connected with the adjustable video guide core through the adjustment knob fixed shaft, and the curvature adjustment knob can be rotated with the adjustment knob fixed axis as the center point; the curvature adjustment tube can be adjusted The length of the video guide core video intake end 2 is set in the section of 2cm-5cm with some side holes of the adjustment tube, and the adjustment cable outlet is set at the video output end of the adjustable video guide core; the curvature adjustment cable adjusts the inner cavity of the tube along the curvature Distributed, fixedly connected to the video output end of the adjustable video guide core, and fixedly connected to the curvature adjustment knob at the video output end of the adjustable video guide core; the outer diameter of the curvature adjustment cable is smaller than the inner diameter of the curvature adjustment tube , the length of the curvature adjustment cable is matched with the curvature adjustment tube; when the curvature adjustment button is adjusted, the curvature adjustment cable can be moved along the long axis of the curvature adjustment tube to the outside of the adjustable video guide core through the outlet of the adjustment cable, and the Adjustable video guide bend between lateral holes in the adjustment tube.
所述临时锁定接口固定连接在可调节视频导芯视频输出端，锁定接口与十二指肠营养管尾端出口匹配连接；所述临时锁定接口设置临时锁定机构，能将十二指肠营养管尾端出口临时锁定连接在所述可调节视频导芯上；临时锁定时十二指肠营养管尾端出口与可调节视频导芯密封连接。The temporary locking interface is fixedly connected to the video output end of the adjustable video guide core, and the locking interface is matched with the outlet of the tail end of the duodenal nutrition tube; the temporary locking interface is provided with a temporary locking mechanism, which can put the duodenal nutrition tube The outlet at the tail end is temporarily locked and connected to the adjustable video guide core; when temporarily locked, the outlet at the tail end of the duodenal nutrition tube is sealed and connected with the adjustable video guide core.
所述连接接口设置四通管，所述四通管一端为单管与连接接口匹配连通；所述四通管另一端设置为连通的三个分支空管接口，三连通的三个分支空管接口分别设置控制开关并通过单管与连接接口连通。The connection interface is provided with a four-way pipe, and one end of the four-way pipe is a single pipe that is connected to the connection interface; The interfaces are respectively provided with control switches and communicated with the connection interface through a single tube.
所述可调节视频导芯外径较十二指肠营养管内径小，所述可调节视频导芯长度较十二指肠营养管长。所述临时锁定接口将十二指肠营养管锁定并密封连接在可调节视频导芯上时，十二指肠营养管内壁与可调节视频导芯之间形成开口于十二指肠营养管头端的用于冲水、充气及吸引的腔道。The outer diameter of the adjustable video guide core is smaller than the inner diameter of the duodenum nutrition tube, and the length of the adjustable video guide core is longer than that of the duodenum nutrition tube. When the temporary locking interface locks and seals the duodenal nutrition tube on the adjustable video guide core, an opening is formed between the inner wall of the duodenal nutrition tube and the adjustable video guide core at the head of the duodenal nutrition tube The cavity at the end is used for flushing, inflation and suction.
所述可调节视频导芯包括摄像头导芯及纤支镜导芯。The adjustable video guide core includes a camera guide core and a bronchoscope guide core.
所述显示屏与视频输出端无线连接时，所述视频输出端设置用于发射视频信号的信号发射器；相应的，所述显示屏设置用于接收视频信号的信号接收器。When the display screen is wirelessly connected to the video output end, the video output end is provided with a signal transmitter for transmitting video signals; correspondingly, the display screen is provided with a signal receiver for receiving video signals.
本实用新型的优点：本实用新型在使用前置入十二指肠营养管增加了十二指肠营养管的韧性，减少了十二指肠营养管置入时弯曲变形；通过调整十二指肠营养管头端弯曲度，减少由胃内进入十二指肠及通过吻合口的难度；通过视频定位，在置管中可轻松判断可调节视频导芯头端在消化道内的位置，指导置管操作，对置管位置进行判断；操作时总体直径较细，能达到管腔内径大于十二指肠营养管的任意部位；通过可调节视频导芯可单独用于其他不需要冲洗吸引的腔内部位检查，如气管镜检查等。The utility model has the advantages: the utility model puts the duodenal nutrition tube into the duodenal nutrition tube before use to increase the toughness of the duodenal nutrition tube, and reduces the bending deformation when the duodenal nutrition tube is placed; by adjusting the duodenal nutrition tube The curvature of the head end of the enteral nutrition tube reduces the difficulty of entering the duodenum from the stomach and passing through the anastomosis; through video positioning, it is easy to judge the position of the head end of the adjustable video guide core in the digestive tract during tube placement, and guide the placement Tube operation, to judge the position of the tube; the overall diameter is small during operation, and can reach any part of the lumen whose inner diameter is larger than the duodenal nutrition tube; the adjustable video guide core can be used alone for other lumens that do not require irrigation and suction Internal site inspection, such as bronchoscopy, etc.
附图说明Description of drawings
图1为本实用新型可调节视频导芯的实施形状结构图；Fig. 1 is the implementation shape structural diagram of the utility model adjustable video guide core;
图2为本实用新型十二指肠营养管的实施形状结构图；Fig. 2 is the implementation shape structural diagram of the duodenal feeding tube of the present invention;
图3为本实用新型十二指肠营养管及可调节视频导芯的整体实施形状结构图；Fig. 3 is the overall implementation shape structure diagram of the duodenal nutrition tube and the adjustable video guide core of the utility model;
图4为本实用新型视频摄入端可调节机构的结构图；Fig. 4 is a structural diagram of the adjustable mechanism of the video intake end of the present invention;
图5为本实用新型视频输出端可调节机构的结构图；Fig. 5 is the structural diagram of the adjustable mechanism of the video output end of the utility model;
图6为本实用新型四通管的结构图；Fig. 6 is the structural diagram of the utility model four-way pipe;
图7为本实用新型十二指肠营养管及可调节视频导芯连接四通管的实施形状结构图。Fig. 7 is an implementation shape structure diagram of the duodenal nutrition tube and the adjustable video guide core connecting four-way tube of the present invention.
附图标记说明：1-可调节视频导芯、11-调节索、12-调节管偏侧孔、13-曲度调节管、14-调节索出口、2-视频摄入端、3-视频输出端、4-临时锁定接口、5-曲度调节机构、51-曲度调节钮、52-调节索牵拉点、53-调节钮固定轴、6-十二指肠营养管、7-连接接口、71-单管、72-空管接口、73-控制开关、8-营养管头端、9-营养管尾端。Explanation of reference signs: 1-adjustable video guide core, 11-adjusting cable, 12-side hole of adjusting tube, 13-curvature adjusting tube, 14-adjusting cable outlet, 2-video intake end, 3-video output end, 4-temporary locking interface, 5-curvature adjustment mechanism, 51-curvature adjustment knob, 52-adjustment cable pulling point, 53-adjustment knob fixed shaft, 6-duodenal nutrition tube, 7-connection interface , 71-single tube, 72-empty tube interface, 73-control switch, 8-nutrition tube head, 9-nutrition tube tail.
具体实施方式Detailed ways
下面结合具体附图和实施例对本实用新型作进一步说明。Below in conjunction with specific accompanying drawing and embodiment the utility model is further described.
如图1、图2及图3所示：一种十二指肠营养管及可调节视频导芯，包括十二指肠营养管6及可调节视频导芯1。所述可调节视频导芯1视频输出端3设置临时锁定接口4，用于将套置在可调节视频导芯1上的十二指肠营养管6锁定并密封连接在可调节视频导芯1上；所述可调节视频导芯1视频输出端3设置用于对可调节视频导芯1视频摄入端2的曲度进行调节的曲度调节机构5。所述十二指肠营养管6尾端设置与十二指肠营养管管腔连通用于冲水、充气及吸引的连接接口7。As shown in FIG. 1 , FIG. 2 and FIG. 3 : a duodenal nutrition tube and an adjustable video guide core, including a duodenal nutrition tube 6 and an adjustable video guide core 1 . The video output end 3 of the adjustable video guide core 1 is provided with a temporary locking interface 4 for locking and sealingly connecting the duodenal nutrition tube 6 sleeved on the adjustable video guide core 1 to the adjustable video guide core 1 Above: The video output end 3 of the adjustable video guide core 1 is provided with a curvature adjustment mechanism 5 for adjusting the curvature of the video intake end 2 of the adjustable video guide core 1 . The tail end of the duodenal nutrition tube 6 is provided with a connection interface 7 communicating with the lumen of the duodenum nutrition tube for flushing, inflation and suction.
具体的，十二指肠营养管6置入消化道的一端是营养管头端8，留在体外的一端是营养管尾端9。十二指肠营养管6为柔软空管，长度较长，需经鼻经过咽部、食道、胃置入到十二指肠部位。盲操作十二指肠营养管6置入困难的原因是：胃部空间较大，难以对胃腔出口幽门定位。在手术中尚可通过手术医师协助操作，非手术病人则需要胃镜辅助操作，病人痛苦，难度极大。所述可调节视频导芯1置入体内的一端即头端，是视频摄入端2，使用时伸出十二指肠营养管6头端开孔，用于获取可调节视频导芯1头端的视频，进而对套置在可调节视频导芯1外部的十二指肠营养管6置入位置进行精确定位。Specifically, the end of the duodenal nutrition tube 6 inserted into the digestive tract is the head end 8 of the nutrition tube, and the end left outside the body is the tail end 9 of the nutrition tube. The duodenal nutrition tube 6 is a soft empty tube with a long length, and needs to be inserted into the duodenum through the nose, pharynx, esophagus, and stomach. The reason why it is difficult to place the duodenal nutrition tube 6 in blind operation is that there is a large space in the stomach, and it is difficult to locate the outlet pylorus of the gastric cavity. During the operation, the operation can still be assisted by the surgeon, while non-surgical patients need the assistance of a gastroscope, which is extremely difficult for the patient. The end of the adjustable video guide core 1 inserted into the body is the head end, which is the video intake end 2. When in use, the head end of the duodenal nutrition tube 6 is extended to open a hole for obtaining the adjustable video guide core 1 head. end video, and then accurately locate the placement position of the duodenal nutrition tube 6 sleeved outside the adjustable video guide core 1.
所述可调节视频导芯1位于体外的一端为视频输出端3，在可调节视频导芯1邻近视频输出端3的部位设置临时锁定接口4。十二指肠营养管6置入操作前，将十二指肠营养管6套置在可调节视频导芯1上，锁紧临时锁定接口4使十二指肠营养管6锁定并密封连接在可调节视频导芯1上，使十二指肠营养管6和十二指肠营养管6在置管操作时能牢固连接，达到一体化效果。锁紧临时锁定接口4使置管操作时可调节视频导芯1带动十二指肠营养管6同步前进，同步后退，同步弯曲。当十二指肠营养管6到达适当部位，松脱锁紧临时锁定接口4，十二指肠营养管6和可调节视频导芯1的连接为松散可抽脱拆卸连接，此时，固定十二指肠营养管6保持不动，抽离可调节视频导芯1并黏贴固定十二指肠营养管6，置管操作完成。The end of the adjustable video guide core 1 located outside the body is the video output terminal 3 , and a temporary locking interface 4 is provided at the position of the adjustable video guide core 1 adjacent to the video output terminal 3 . Before the duodenal nutrition tube 6 is put into operation, the duodenal nutrition tube 6 is sleeved on the adjustable video guide core 1, and the temporary locking interface 4 is locked so that the duodenal nutrition tube 6 is locked and hermetically connected to the The video guide core 1 can be adjusted so that the duodenal feeding tube 6 and the duodenal feeding tube 6 can be firmly connected during the tube placement operation, achieving an integrated effect. Locking the temporary locking interface 4 enables the adjustable video guide core 1 to drive the duodenal nutrition tube 6 to advance synchronously, to retreat synchronously, and to bend synchronously during tube placement operation. When the duodenal nutrition tube 6 reaches the appropriate position, the temporary locking interface 4 is loosened and locked, and the connection between the duodenal nutrition tube 6 and the adjustable video guide core 1 is a loose, detachable and detachable connection. The duodenal nutrition tube 6 remains still, the adjustable video guide core 1 is pulled off and the duodenal nutrition tube 6 is pasted and fixed, and the tube insertion operation is completed.
所述临时锁定接口4固定连接在可调节视频导芯1视频输出端，临时锁定接口4与十二指肠营养管6尾端出口匹配连接。所述临时锁定接口4设置临时锁定机构，能将十二指肠营养管6尾端出口临时锁定连接在所述可调节视频导芯1上。临时锁定时十二指肠营养管6尾端出口与可调节视频导芯1密封连接。The temporary locking interface 4 is fixedly connected to the video output end of the adjustable video guide core 1, and the temporary locking interface 4 is matched with the outlet of the duodenal nutrition tube 6 tail end. The temporary locking interface 4 is provided with a temporary locking mechanism, which can temporarily lock and connect the outlet of the tail end of the duodenal nutrition tube 6 to the adjustable video guide core 1 . When temporarily locked, the outlet at the tail end of the duodenal nutrition tube 6 is sealed and connected with the adjustable video guide core 1.
所述临时锁定接口4包括设置在可调节视频导芯1上的活动封帽结构，封帽接口与营养管尾端9接口匹配。封帽接口设置螺纹，与此对应，营养管尾端9接口设置匹配的螺纹，通过旋转封帽接口即可达到密封连接效果。同理，反向旋转即可达到松脱效果。所述临时锁定接口4还包括许多其他结构，但必须达到锁紧时十二指肠营养管6和可调节视频导芯1密封连接，松脱时能拔出可调节视频导芯1，此处不再赘述。The temporary locking interface 4 includes a movable capping structure arranged on the adjustable video guide core 1, and the capping interface matches with the interface at the tail end 9 of the nutrition tube. The sealing cap interface is provided with threads, and correspondingly, the 9 interfaces at the tail end of the nutrition tube are provided with matching threads, and the sealing connection effect can be achieved by rotating the sealing cap interface. In the same way, reverse rotation can achieve the loosening effect. The temporary locking interface 4 also includes many other structures, but the duodenal nutrition tube 6 and the adjustable video guide core 1 must be tightly connected when locked, and the adjustable video guide core 1 can be pulled out when it is loosened. Here No longer.
虽然可调节视频导芯1能对十二指肠营养管6置管位置精确定位，但具体使用时需对可调节视频导芯1即视频摄入端2前进方向进行调节以便选择正确方向。为实现对视频摄入端2前进方向定位，所述可调节视频导芯1视频输出端3设置曲度调节机构5，调节曲度调节机构5时可调节视频导芯1视频摄入端2的曲度进行选择。通过不同角度对可调节视频导芯1进行旋转和对可调节视频导芯1视频摄入端2的曲度改变结合使用，使可调节视频导芯1视频摄入端2的方向选择无盲区，从而使置管操作者能根据需要随意选择可调节视频导芯1视频摄入端2的前进方向。Although the adjustable video guide core 1 can accurately locate the position of the duodenal nutrition tube 6, the direction of the adjustable video guide core 1, that is, the video intake end 2, needs to be adjusted in order to select the correct direction during specific use. In order to realize the positioning of the forward direction of the video intake end 2, the video output end 3 of the adjustable video guide core 1 is provided with a curvature adjustment mechanism 5, and when the curvature adjustment mechanism 5 is adjusted, the position of the video guide core 1 video intake end 2 can be adjusted. Curvature to choose. By rotating the adjustable video guide core 1 at different angles and changing the curvature of the video intake end 2 of the adjustable video guide core 1, the direction selection of the video intake end 2 of the adjustable video guide core 1 has no blind area, Therefore, the catheterization operator can freely choose the advancing direction of the video intake end 2 of the adjustable video guide core 1 according to needs.
可视置管操作的视频来源是视频摄入端2对前方消化道内壁摄取传递，有以下因素影响视频摄取：消化道内壁通常处于贴合瘪陷状态难以观察；消化道内壁通畅附着小气泡泡沫及残渣遮掩消化道内壁；消化液集聚在消化道低处，掩盖此处内壁。为解决以上问题，所述十二指肠营养管6尾端设置与十二指肠营养管6管腔连通的连接接口7，通过连接接口7连通十二指肠营养管6与可调节视频导芯1之间的间隙，形成用于冲水、充气及吸引的腔道。The video source of the visual catheterization operation is the ingestion and transmission of the video intake port 2 to the inner wall of the front digestive tract. The following factors affect the video intake: the inner wall of the digestive tract is usually in a state of fit and collapse and it is difficult to observe; the inner wall of the digestive tract is smooth and adheres to small bubbles and foam and residues cover the inner wall of the digestive tract; digestive juices gather in the lower part of the digestive tract to cover the inner wall here. In order to solve the above problems, the tail end of the duodenal nutrition tube 6 is provided with a connection interface 7 communicating with the lumen of the duodenum nutrition tube 6, and the duodenum nutrition tube 6 is connected to the adjustable video guide through the connection interface 7. The gap between the cores 1 forms a cavity for flushing, inflation and suction.
为实现连接接口7的冲水、充气及吸引功能，所述可调节视频导芯1外径较十二指肠营养管6内径小。所述临时锁定接口4将十二指肠营养管6锁定并密封连接在可调节视频导芯1上时，十二指肠营养管6内壁与可调节视频导芯1之间形成开口于十二指肠营养管6头端并与连接接口7连通的用于冲水、充气及吸引的腔道。In order to realize the flushing, inflation and suction functions of the connection interface 7, the outer diameter of the adjustable video guide core 1 is smaller than the inner diameter of the duodenal nutrition tube 6 . When the temporary locking interface 4 locks and seals the duodenal nutrition tube 6 on the adjustable video guide core 1, an opening is formed between the inner wall of the duodenal nutrition tube 6 and the adjustable video guide core 1. The head end of the enteral nutrition tube 6 communicates with the connection interface 7 for flushing, inflation and suction.
所述可调节视频导芯1视频输出端3设置显示屏，以显示视频摄入端2视频图像，操作者根据显示屏显示的视频图像即获取可调节视频导芯1视频输出端3在消化道内所处的位置。所述显示屏与视频输出端3有线电连接或无线连接。对应的，显示屏与视频输出端3为有线电连接时需配备对应的视频传输线及供电电线，为无线连接时需配备相应的视频信号发送器及接收器，此处不再赘述。The video output end 3 of the adjustable video guide core 1 is provided with a display screen to display the video image of the video intake end 2, and the operator obtains the adjustable video guide core 1 video output end 3 in the digestive tract according to the video image displayed on the display screen. where you are. The display screen is wired or wirelessly connected to the video output terminal 3 . Correspondingly, the display screen and the video output terminal 3 need to be equipped with corresponding video transmission lines and power supply lines when they are wired, and need to be equipped with corresponding video signal transmitters and receivers when they are connected wirelessly, which will not be repeated here.
所述可调节视频导芯1设置用于为视频摄入端2照明的光源及为光源供电的电源。所述电源应设置在可调节视频导芯1位于十二指肠营养管6尾端的外部。所述光源可为设置在可调节视频导芯1视频摄入端2的微型灯珠，对应的可调节视频导芯1内需埋设供电线与电源电连接。所述光源可为设置在可调节视频导芯1视频输出端3的端部，对应的可调节视频导芯1内需设置导光索或其它能将光源传导至视频摄入端2的结构。The adjustable video guide core 1 is provided with a light source for illuminating the video intake end 2 and a power supply for powering the light source. The power supply should be set outside the adjustable video guide core 1 located at the tail end of the duodenal feeding tube 6 . The light source can be a miniature lamp bead arranged at the video intake end 2 of the adjustable video guide core 1 , and the corresponding adjustable video guide core 1 needs to be embedded with a power supply line to be electrically connected to the power supply. The light source can be arranged at the end of the video output end 3 of the adjustable video guide core 1 , and the corresponding adjustable video guide core 1 needs to be provided with a light guide cable or other structures that can guide the light source to the video input end 2 .
如图4及图5所示：所述曲度调节机构5包括设置在可调节视频导芯1内的曲度调节管13、嵌置在曲度调节管13内的曲度调节索11及与可调节视频导芯1活动连接用于牵拉曲度调节索11的曲度调节钮51。所述曲度调节钮51通过调节钮固定轴53与可调节视频导芯1活动连接，曲度调节钮51能以调节钮固定轴53为中心点转动。所述曲度调节管13在可调节视频导芯1视频摄入端2长度在2cm-5cm的区域设置若干调节管偏侧孔12，在可调节视频导芯1视频输出端设置调节索出口14。所述曲度调节索11沿曲度调节管13内腔分布，与可调节视频导芯1视频输出端固定连接，在可调节视频导芯1视频输出端3出调节索出口14与曲度调节钮51固定连接；所述曲度调节索11外径较曲度调节管13内径小，所述曲度调节索11长度与曲度调节管13匹配。调节曲度调节钮51活动时能牵动曲度调节索11沿曲度调节管13长轴通过调节索出口14向可调节视频导芯1外运动，并牵动调节管偏侧孔12间的可调节视频导芯1弯曲。As shown in Figure 4 and Figure 5: the curvature adjustment mechanism 5 includes a curvature adjustment tube 13 arranged in the adjustable video guide core 1, a curvature adjustment cable 11 embedded in the curvature adjustment tube 13, and The adjustable video guide core 1 is movably connected with a curvature adjustment knob 51 for pulling the curvature adjustment cable 11 . The curvature adjusting knob 51 is movably connected with the adjustable video guide core 1 through the adjusting knob fixed shaft 53 , and the curvature adjusting knob 51 can rotate around the adjusting knob fixed shaft 53 . The curvature adjustment tube 13 is provided with several adjustment tube side holes 12 in the region where the length of the video intake end 2 of the adjustable video guide core 1 is 2cm-5cm, and an adjustment cable outlet 14 is provided at the video output end of the adjustable video guide core 1 . The curvature adjustment cable 11 is distributed along the inner cavity of the curvature adjustment tube 13, and is fixedly connected to the video output end of the adjustable video guide core 1, and the adjustment cable outlet 14 is connected with the curvature adjustment cable outlet 3 at the video output end 3 of the adjustable video guide core 1. The button 51 is fixedly connected; the outer diameter of the curvature adjustment cable 11 is smaller than the inner diameter of the curvature adjustment tube 13, and the length of the curvature adjustment cable 11 matches the curvature adjustment tube 13. When the curvature adjustment button 51 is active, the curvature adjustment cable 11 can be moved to the outside of the adjustable video guide core 1 through the adjustment cable outlet 14 along the long axis of the curvature adjustment tube 13, and it can also affect the adjustable distance between the side holes 12 of the adjustment tube. Video guide 1 is bent.
具体的：所述曲度调节管13设置在可调节视频导芯1截面上邻近边缘的部位，所述调节管偏侧孔12设置在曲度调节管13邻近可调节视频导芯1薄弱一侧的侧壁。调节管偏侧孔12优选数目在10-20个，调节管偏侧孔12直径优选0.2mm-0.4mm。调节索出口14孔径优选与曲度调节索11外径匹配。Specifically: the curvature adjustment tube 13 is set on the section adjacent to the edge of the adjustable video guide core 1, and the side hole 12 of the adjustment tube is set on the weak side of the curvature adjustment tube 13 adjacent to the adjustable video guide core 1 side wall. The number of the side holes 12 of the adjustment tube is preferably 10-20, and the diameter of the side holes 12 of the adjustment tube is preferably 0.2mm-0.4mm. The hole diameter of the adjusting cable outlet 14 preferably matches the outer diameter of the curvature adjusting cable 11 .
所述曲度调节索11嵌置在曲度调节管13内，留有微小间隙；曲度调节索11能沿曲度调节管13长轴运动，但横截面上活动范围极小。The curvature adjustment cable 11 is embedded in the curvature adjustment tube 13 with a small gap; the curvature adjustment cable 11 can move along the long axis of the curvature adjustment tube 13, but the range of motion in the cross section is extremely small.
所述曲度调节索11长度与曲度调节管13匹配，即不受力状态下，曲度调节索11长度仅够从邻近视频摄入端2的一端与可调节视频导芯1固定连接点在曲度调节管13内延伸到与曲度调节钮51上的调节索牵拉点52。The length of the curvature adjustment cable 11 matches the curvature adjustment tube 13, that is, in the unstressed state, the length of the curvature adjustment cable 11 is only enough to fix the connection point from one end adjacent to the video intake end 2 to the adjustable video guide core 1 In the curvature adjustment tube 13 , it extends to the adjustment cable pulling point 52 on the curvature adjustment knob 51 .
当调节曲度调节钮51以调节钮固定轴53为中心点转动时，曲度调节钮51上的调节索牵拉点52受力，牵拉曲度调节索11通过调节索出口14向外运动。但曲度调节索11长度与曲度调节管13匹配，并没有运动空间。此时，微观上，调节管偏侧孔12在可调节视频导芯1长轴上的两端A点及B点在曲度调节索11的拉力下紧贴，在可调节视频导芯1形成微小弯曲；多个微小弯曲在设置调节管偏侧孔12的2cm-5cm的距离内积累形成偏向设置曲度调节管13一侧的较大弯曲，达到实用目的。When the curvature adjustment knob 51 is rotated with the adjustment knob fixed shaft 53 as the center point, the adjustment cable pulling point 52 on the curvature adjustment knob 51 is stressed, and the pulling curvature adjustment cable 11 moves outward through the adjustment cable outlet 14 . But the curvature adjustment cable 11 length matches the curvature adjustment tube 13, and there is no room for movement. At this time, microscopically, point A and point B at the two ends of the adjustment tube side hole 12 on the long axis of the adjustable video guide core 1 are in close contact with the tension of the curvature adjustment cable 11, and the adjustable video guide core 1 is formed. Minor bends; multiple minor bends are accumulated within a distance of 2cm-5cm from the side hole 12 of the adjustment tube to form a larger bend that is biased toward the side of the curvature adjustment tube 13 to achieve practical purposes.
如图6及图7所示：所述连接接口7设置四通管，所述四通管一端为单管71与连接接口7匹配连通，所述四通管另一端设置为连通的三个分支空管接口72。三个连通的三个分支空管接口72分别设置控制开关73并通过单管71与连接接口7连通。三个分支空管接口72使用时分别连接冲水管便于冲水冲洗消化道内壁通畅附着小气泡泡沫及残渣暴露消化道内壁；连接充气管充入气体使贴合瘪陷状态的消化道腔壁撑开便于视频摄入端2采集视频图像；连接吸引管便于负压吸引积于消化道腔内低处的消化液及冲洗水。三个分支空管接口72分别设置控制开关73对充气、冲洗及吸引操作进行控制。As shown in Figures 6 and 7: the connection interface 7 is provided with a four-way pipe, one end of the four-way pipe is a single pipe 71 that is matched and communicated with the connection interface 7, and the other end of the four-way pipe is set as three connected branches Empty pipe interface 72. The three connected three-branch empty pipe interfaces 72 are respectively provided with control switches 73 and communicated with the connection interface 7 through a single pipe 71 . When in use, the three branch empty pipe interfaces 72 are respectively connected to the flushing pipes to facilitate the flushing of the inner wall of the digestive tract, with small bubbles, foam and residues exposed to the inner wall of the digestive tract; connecting the inflatable tube to inflate the gas to fit the wall support of the digestive tract cavity in the collapsed state Opening is convenient for the video intake end 2 to collect video images; connecting the suction tube is convenient for negative pressure suction of digestive juice and flushing water accumulated in the lower part of the digestive tract cavity. The three branch empty pipe interfaces 72 are respectively provided with control switches 73 to control the inflation, flushing and suction operations.
所述可调节视频导芯1包括摄像头导芯及纤支镜导芯，此处不再赘述。The adjustable video guide core 1 includes a camera guide core and a bronchoscope guide core, which will not be repeated here.
本实用新型在使用前置入十二指肠营养管6管腔增加了十二指肠营养管6的韧性，减少了十二指肠营养管6置入时弯曲变形；通过调整可调节视频导芯1视频摄入端2的弯曲度进而调整十二指肠营养管头端8弯曲度，减少由十二指肠营养管6由胃内进入十二指肠难度；通过视频定位，在置管中可轻松判断可调节视频导芯1视频摄入端2在消化道内的位置，指导置管操作，对置管位置进行判断；操作时总体直径较细，能达到管腔内径大于十二指肠营养管的任意部位；通过可调节视频导芯1与十二指肠营养管6管腔形成的腔隙用于充气、冲洗及吸引，缩小空间需求；可调节视频导芯1可单独用于其他不需要冲洗吸引的腔内部位检查，如气管镜检查，引导气管插管等。适用范围广，使用方便，安全可靠。The utility model is inserted into the lumen of the duodenal nutrition tube 6 before use to increase the toughness of the duodenum nutrition tube 6 and reduce the bending deformation when the duodenum nutrition tube 6 is inserted; the video guide can be adjusted by adjusting The curvature of the video intake end 2 of the core 1 can then adjust the curvature of the head end 8 of the duodenal nutrition tube to reduce the difficulty of entering the duodenum from the stomach with the duodenal nutrition tube 6; It can easily judge the position of the adjustable video guide core 1 and the video intake end 2 in the digestive tract, guide the operation of the catheter, and judge the position of the catheter; the overall diameter of the operation is relatively small, and the inner diameter of the lumen can be larger than that of the duodenum Any part of the nutrition tube; the cavity formed by the adjustable video guide core 1 and the lumen of the duodenal nutrition tube 6 is used for inflation, flushing and suction, reducing the space requirement; the adjustable video guide core 1 can be used separately for other Examination of intraluminal sites that do not require flushing and suction, such as bronchoscopy, guided endotracheal intubation, etc. Wide application range, easy to use, safe and reliable.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044408.9UCN204446646U (en) | 2015-01-22 | 2015-01-22 | Duodenal feeding tube and adjustable video lead core |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044408.9UCN204446646U (en) | 2015-01-22 | 2015-01-22 | Duodenal feeding tube and adjustable video lead core |
| Publication Number | Publication Date |
|---|---|
| CN204446646Utrue CN204446646U (en) | 2015-07-08 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520044408.9UExpired - Fee RelatedCN204446646U (en) | 2015-01-22 | 2015-01-22 | Duodenal feeding tube and adjustable video lead core |
| Country | Link |
|---|---|
| CN (1) | CN204446646U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106039513A (en)* | 2016-07-06 | 2016-10-26 | 河南驼人医疗器械集团有限公司 | Wireless visual guide core for tracheal intubation |
| CN106993997A (en)* | 2017-05-15 | 2017-08-01 | 王佳姝钰 | A kind of visual gastroscope tube |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106039513A (en)* | 2016-07-06 | 2016-10-26 | 河南驼人医疗器械集团有限公司 | Wireless visual guide core for tracheal intubation |
| CN106993997A (en)* | 2017-05-15 | 2017-08-01 | 王佳姝钰 | A kind of visual gastroscope tube |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20150708 Termination date:20160122 | |
| EXPY | Termination of patent right or utility model |