技术领域Technical Field
本发明涉及医疗器械技术领域，具体涉及一种消化道造瘘用球囊抽吸装置。The invention relates to the technical field of medical devices, and in particular to a balloon suction device for digestive tract fistula.
背景技术Background technique
消化道肿瘤的发病率逐年升高，外科手术后的消化道造瘘是消化道肿瘤诊疗过程中的难点。对部分需要肠道-腹壁造瘘的患者，常常需要二次手术还纳，病人长期在腹壁等地方挂有外置造瘘袋，影响生活质量，二次还纳手术还增加患者的病痛和花费。The incidence of digestive tract tumors is increasing year by year. Post-surgical digestive tract fistulas are a difficult point in the diagnosis and treatment of digestive tract tumors. For some patients who need intestinal-abdominal wall fistulas, secondary surgery is often required. Patients have to hang external fistula bags on the abdominal wall for a long time, which affects their quality of life. Secondary surgery also increases patients' pain and expenses.
现有技术中有一种消化道造瘘装置，具有管道，管道的外壁上设有可充气膨大的气囊，气囊远侧为一段管道盲端，管道盲端超过气囊的位置，并且是封闭的，在气囊近侧的管壁设置与管腔相通的小孔，通过气囊近侧管壁的小孔抽出肠内容物。然而，这种造瘘装置由于小孔的孔径小，容易被堵住，对肠内容物的抽吸效率低下，影响治疗效果。而且，已有消化道造瘘装置需要凭借操者经验植入肠内指定位置，植入准确度低。此外，已有消化道造瘘装置的气囊会与肠壁粘合，后期难以顺利取出，还可能会对患者造成二次伤害。There is a gastrointestinal fistula device in the prior art, which has a pipeline, an inflatable balloon is arranged on the outer wall of the pipeline, the distal side of the balloon is a blind end of the pipeline, the blind end of the pipeline exceeds the position of the balloon and is closed, and a small hole communicating with the lumen is arranged on the tube wall proximal to the balloon, and the intestinal contents are extracted through the small hole in the tube wall proximal to the balloon. However, this type of fistula device is easily blocked due to the small aperture of the small hole, and the suction efficiency of the intestinal contents is low, which affects the treatment effect. Moreover, the existing gastrointestinal fistula device needs to be implanted in a specified position in the intestine based on the operator's experience, and the implantation accuracy is low. In addition, the balloon of the existing gastrointestinal fistula device will adhere to the intestinal wall, making it difficult to remove smoothly at a later stage, and may also cause secondary damage to the patient.
发明内容Summary of the invention
本发明为解决现有技术的不足，提供了一种消化道造瘘用球囊抽吸装置，解决了现有消化道造瘘需要二次手术还纳的问题，以及现有造瘘装置对肠内容物的抽吸效率低下、植入肠内准确度低、难以顺利取出的问题。本发明能代替现有的消化道造瘘装置，提高了患者生活质量，节约卫生资源和花费，避免二次手术，减轻患者病痛，而且对肠内容物的抽吸效率高，治疗效果好。The present invention solves the deficiencies of the prior art and provides a balloon suction device for gastrointestinal ostomy, which solves the problem that the existing gastrointestinal ostomy requires secondary surgery to restore the gastrointestinal ostomy, and the problems that the existing ostomy device has low suction efficiency for intestinal contents, low accuracy in implantation in the intestine, and is difficult to remove smoothly. The present invention can replace the existing gastrointestinal ostomy device, improve the quality of life of patients, save health resources and expenses, avoid secondary surgery, relieve patients' pain, and has high suction efficiency for intestinal contents and good treatment effect.
为实现上述目的，本发明提供了以下技术方案：To achieve the above object, the present invention provides the following technical solutions:
一种消化道造瘘用球囊抽吸装置，包括:A balloon suction device for digestive tract fistula, comprising:
导管，导管具有贯穿其两端的抽吸通道，导管上还设有气体通道；The catheter has a suction channel running through both ends thereof and a gas channel;
球囊，球囊套设在导管的远端，气体通道的远端与球囊内部连通；A balloon is sleeved on the distal end of the catheter, and the distal end of the gas channel is communicated with the interior of the balloon;
充气单元，充气单元与气体通道的近端连接，充气单元被配置为向球囊内充气或将球囊内的气体排出；an inflation unit connected to the proximal end of the gas channel, and configured to inflate the balloon or discharge the gas in the balloon;
其中，充气状态下的球囊为碗状结构，具有内凹曲面和外凸曲面；外凸曲面能够与消化道的内壁贴合；内凹曲面与外凸曲面之间构成充气空间，充气空间与气体通道的远端连通；内凹曲面形成能够暂存消化道内的内容物的抽吸容腔，导管的远端开口位于充气状态下的球囊的内凹曲面中心处，并与抽吸容腔连通。Among them, the balloon in the inflated state is a bowl-shaped structure with a concave surface and a convex surface; the convex surface can fit the inner wall of the digestive tract; an inflation space is formed between the concave surface and the convex surface, and the inflation space is connected to the distal end of the gas channel; the concave surface forms a suction cavity that can temporarily store the contents in the digestive tract, and the distal opening of the catheter is located at the center of the concave surface of the balloon in the inflated state, and is connected to the suction cavity.
进一步地，消化道造瘘用球囊抽吸装置还包括设在导管远端的第一显影环和设在球囊表面的第二显影环。Furthermore, the balloon suction device for digestive tract fistula also includes a first developing ring arranged at the distal end of the catheter and a second developing ring arranged on the surface of the balloon.
进一步地，导管包括位于近端的第一段和位于远端的第二段，球囊套设在第二段的外侧，抽吸通道同时贯穿第一段和第二段，气体通道贯穿第一段，气体通道的远端延伸至第二段并与球囊连通，第二段和球囊均采用可降解材质，通过注入诱导介质使球囊和第二段发生降解。Furthermore, the catheter includes a first section located at the proximal end and a second section located at the distal end, the balloon is arranged on the outside of the second section, the suction channel runs through the first section and the second section at the same time, the gas channel runs through the first section, the distal end of the gas channel extends to the second section and is connected to the balloon, the second section and the balloon are both made of degradable materials, and the balloon and the second section are degraded by injecting an inducing medium.
进一步地，还包括压力传感器，压力传感器设在球囊的表面，被配置为检测球囊与消化道之间的压力。Furthermore, it also includes a pressure sensor, which is arranged on the surface of the balloon and is configured to detect the pressure between the balloon and the digestive tract.
进一步地，消化道造瘘用球囊抽吸装置还包括用于使压力传感器与控制模块电性连接的导线，导线埋设在导管内，导线在第二段内设有相互搭接的接头。Furthermore, the balloon suction device for gastrointestinal fistula also includes a wire for electrically connecting the pressure sensor to the control module, the wire is buried in the catheter, and the wire is provided with overlapping joints in the second section.
进一步地，消化道造瘘用球囊抽吸装置还包括位于球囊的近端与第二段衔接处的第一磁片和第二磁片，第一磁片和第二磁片分别位于导管的两侧并与导管可拆卸连接。Furthermore, the balloon suction device for gastrointestinal fistula also includes a first magnetic sheet and a second magnetic sheet located at the junction of the proximal end of the balloon and the second section. The first magnetic sheet and the second magnetic sheet are respectively located on both sides of the catheter and are detachably connected to the catheter.
进一步地，压力传感器采用柔性薄膜压力传感器，压力传感器嵌入球囊的外表面。Furthermore, the pressure sensor is a flexible film pressure sensor, and the pressure sensor is embedded in the outer surface of the balloon.
进一步地，压力传感器的数量为多个，多个压力传感器环绕球囊间隔分布。Furthermore, there are multiple pressure sensors, and the multiple pressure sensors are distributed around the balloon at intervals.
进一步地，导管的近端设有支管，支管与导管之间存在一夹角，气体通道的近端贯穿支管并与充气单元连接。Furthermore, a branch pipe is provided at the proximal end of the catheter, an angle is formed between the branch pipe and the catheter, and the proximal end of the gas channel passes through the branch pipe and is connected to the inflation unit.
进一步地，消化道造瘘用球囊抽吸装置还包括抽吸盒、集废囊、真空泵、第三管、冲洗泵、抽吸阀、排液阀和冲洗阀；抽吸盒内设有第一腔室和第二腔室，抽吸盒上设有与第一腔室连通的第一管和第二管，第一管通过管路与抽吸通道连接；集废囊设在第一腔室内且其两端分别与第一管和第二管连接；真空泵设在第一腔室内且位于抽吸盒与集废囊之间；第三管的一端与第一管连接，其另一端伸入第二腔室内；冲洗泵设在第三管上；抽吸阀设在第一管上且位于第三管与集废囊之间；排液阀设在第二管上；冲洗阀设在第一管与冲洗泵之间的第三管上；真空泵和冲洗泵均与电源模块、控制模块电连接电性连接。Furthermore, the balloon suction device for gastrointestinal fistula also includes a suction box, a waste collecting bag, a vacuum pump, a third tube, a flushing pump, a suction valve, a drain valve and a flushing valve; a first chamber and a second chamber are provided in the suction box, and a first tube and a second tube connected to the first chamber are provided on the suction box, and the first tube is connected to the suction channel through a pipeline; the waste collecting bag is arranged in the first chamber and its two ends are respectively connected to the first tube and the second tube; the vacuum pump is arranged in the first chamber and is located between the suction box and the waste collecting bag; one end of the third tube is connected to the first tube, and the other end thereof extends into the second chamber; the flushing pump is arranged on the third tube; the suction valve is arranged on the first tube and is located between the third tube and the waste collecting bag; the drain valve is arranged on the second tube; the flushing valve is arranged on the third tube between the first tube and the flushing pump; the vacuum pump and the flushing pump are both electrically connected to the power module and the control module.
进一步地，消化道造瘘用球囊抽吸装置还包括设在抽吸盒外侧并与电源模块电连接的触控屏，触控屏与控制模块电连接，抽吸阀和冲洗阀均为电磁阀并与控制模块电性连接。Furthermore, the balloon suction device for gastrointestinal fistula also includes a touch screen arranged on the outside of the suction box and electrically connected to the power module, the touch screen is electrically connected to the control module, and the suction valve and the flushing valve are both solenoid valves and are electrically connected to the control module.
与现有技术相比，本发明至少可实现如下有益效果之一：Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:
a）本发明提供的消化道造瘘用球囊抽吸装置，通过在导管上设置充气可膨胀的球囊，能够使球囊与消化道内壁之间始终具有适当的压力，从而使球囊紧贴消化道的内壁，阻止消化道内的内容物流入下段消化道，为下段消化道的愈合提供适宜的环境，促进吻合口的愈合，愈合后将装置从腹壁取出即可，避免进行二次还纳手术，有利于减少患者的病痛和医疗费用。a) The balloon suction device for gastrointestinal fistula provided by the present invention can always maintain appropriate pressure between the balloon and the inner wall of the digestive tract by arranging an inflatable balloon on the catheter, so that the balloon is closely attached to the inner wall of the digestive tract, preventing the contents in the digestive tract from flowing into the lower digestive tract, providing a suitable environment for the healing of the lower digestive tract, and promoting the healing of the anastomosis. After the healing, the device can be removed from the abdominal wall, avoiding a secondary reduction operation, which is beneficial to reducing the patient's pain and medical expenses.
b）本发明提供的消化道造瘘用球囊抽吸装置，充气状态下的球囊为碗状结构，其内凹曲面形成能够暂存消化道内的内容物的抽吸容腔，导管的远端开口位于充气状态下的所述球囊的内凹曲面中心处，肠内容物能够暂时储存在球囊的抽吸容腔内，导管的远端开口即为导管的抽吸口，抽吸口位于碗状球囊的碗底中心，相对于现有在导管侧壁上设置小孔的方案，本申请能够快速的将暂存在球囊抽吸容腔内的肠内容物抽出，抽吸效率更高，显著降低了抽吸过程抽吸口被肠内容物堵住的风险。b) The balloon suction device for gastrointestinal fistula provided by the present invention has a bowl-shaped balloon in an inflated state, and its concave surface forms a suction cavity that can temporarily store the contents in the gastrointestinal tract. The distal opening of the catheter is located at the center of the concave surface of the balloon in the inflated state. The intestinal contents can be temporarily stored in the suction cavity of the balloon. The distal opening of the catheter is the suction port of the catheter, and the suction port is located at the center of the bottom of the bowl-shaped balloon. Compared with the existing solution of setting small holes on the side wall of the catheter, the present application can quickly extract the intestinal contents temporarily stored in the balloon suction cavity, with higher suction efficiency, and significantly reducing the risk of the suction port being blocked by intestinal contents during the suction process.
c）本发明提供的消化道造瘘用球囊抽吸装置，通过在导管远端设置第一显影环、在球囊表面设置第二显影环，能够实现精准植入，为手术操作提供便利。c) The balloon suction device for gastrointestinal fistula provided by the present invention can achieve precise implantation by arranging a first developing ring at the distal end of the catheter and a second developing ring on the surface of the balloon, thereby facilitating surgical operations.
d）本发明提供的消化道造瘘用球囊抽吸装置，导管的第二段和球囊采用可降解材质，在吻合口愈合之后，通过注入诱导介质使所述球囊和第二段发生降解，只需将导管的第一段从腹壁取出，使得取出过程更加顺利，避免因球囊与肠壁粘接取出困难对患者造成痛苦，甚至对患者造成二次伤害的情况发生。d) In the balloon suction device for gastrointestinal fistula provided by the present invention, the second section of the catheter and the balloon are made of degradable materials. After the anastomosis is healed, the balloon and the second section are degraded by injecting an inducing medium. Only the first section of the catheter needs to be removed from the abdominal wall, making the removal process smoother and avoiding the pain caused to the patient due to the difficulty in removal due to adhesion of the balloon to the intestinal wall, or even causing secondary damage to the patient.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为了更清楚地说明本说明书实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本说明书实施例中记载的一些实施例，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
图1为本发明提供的消化道造瘘用球囊抽吸装置的结构示意图；FIG1 is a schematic structural diagram of a balloon suction device for gastrointestinal fistula provided by the present invention;
图2为本发明提供的消化道造瘘用球囊抽吸装置的剖面结构示意图；FIG2 is a schematic cross-sectional view of the balloon suction device for digestive tract fistula provided by the present invention;
图3为图1中沿B-B线的断面图；Fig. 3 is a cross-sectional view along line B-B in Fig. 1;
图4为图1中沿C-C线的断面图；Fig. 4 is a cross-sectional view along line C-C in Fig. 1;
图5为图2中D处的导线接头的放大视图；FIG5 is an enlarged view of the wire connector at position D in FIG2;
图6为本发明提供的消化道造瘘用球囊抽吸装置的抽吸组件的示意图；FIG6 is a schematic diagram of a suction assembly of a balloon suction device for gastrointestinal fistula provided by the present invention;
图7为本发明提供的消化道造瘘用球囊抽吸装置的供电示意图；FIG7 is a schematic diagram of power supply for the gastrointestinal ostomy balloon suction device provided by the present invention;
图8为本发明提供的消化道造瘘用球囊抽吸装置的控制框图；FIG8 is a control block diagram of the balloon suction device for digestive tract fistula provided by the present invention;
图9为将本发明提供的消化道造瘘用球囊抽吸装置植入人体后的示意图；FIG9 is a schematic diagram of the digestive tract ostomy balloon suction device provided by the present invention after being implanted into a human body;
图10为图9中E处的局部放大视图；FIG10 is a partial enlarged view of point E in FIG9 ;
图11为肠壁愈合后的示意图。FIG. 11 is a schematic diagram of the intestinal wall after healing.
附图标记：Reference numerals:
1、导管；101、第一段；102、第二段；103、抽吸通道；104、气体通道；2、球囊；201、抽吸容腔；202、充气空间；3、压力传感器；4、第一显影环；5、第二显影环；6、控制模块；7、充气单元；8、电源模块；9、导线；10、支管；11、抽吸盒；1101、第一腔室；1102、第二腔室；12、集废囊；13、真空泵；14、第一管；15、第二管；16、第三管；17、冲洗泵；18、抽吸阀；19、排液阀；20、冲洗阀；21、触控屏；22、内容物；23、腹壁；24、抽吸组件；25、吻合口；26、第一磁片；27、第二磁片；28、肠壁。1. Catheter; 101. First section; 102. Second section; 103. Suction channel; 104. Gas channel; 2. Balloon; 201. Suction chamber; 202. Inflation space; 3. Pressure sensor; 4. First developing ring; 5. Second developing ring; 6. Control module; 7. Inflation unit; 8. Power module; 9. Wire; 10. Branch pipe; 11. Suction box; 1101. First chamber; 1102. Second chamber; 12. Waste collection bag; 13. Vacuum pump; 14. First tube; 15. Second tube; 16. Third tube; 17. Flushing pump; 18. Suction valve; 19. Drain valve; 20. Flushing valve; 21. Touch screen; 22. Contents; 23. Abdominal wall; 24. Suction assembly; 25. Anastomosis; 26. First magnetic sheet; 27. Second magnetic sheet; 28. Intestinal wall.
具体实施方式Detailed ways
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。需要说明的是，在不冲突的情况下，本公开中的实施方式及实施方式中的特征可以相互组合、分离、互换和/或重新布置。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that, in the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be combined, separated, interchanged and/or rearranged with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
在附图中，为了清楚和/或描述性的目的，可以夸大部件的尺寸和相对尺寸。当可以不同地实施示例性实施例时，可以以不同于所描述的顺序来执行具体的工艺顺序。例如，可以基本同时执行或者以与所描述的顺序相反的顺序执行两个连续描述的工艺。此外，同样的附图标记表示同样的部件。In the accompanying drawings, the size and relative size of components may be exaggerated for clarity and/or descriptive purposes. When the exemplary embodiments may be implemented differently, a specific process sequence may be performed in a different order than described. For example, two sequentially described processes may be performed substantially simultaneously or in an order opposite to the order described. In addition, the same reference numerals represent the same components.
这里使用的术语是为了描述具体实施例的目的，而不意图是限制性的。如这里所使用的，除非上下文另外清楚地指出，否则单数形式“一个(种、者)”和“所述(该)”也意图包括复数形式。此外，当在本说明书中使用术语“包含”和/或“包括”以及它们的变型时，说明存在所陈述的特征、整体、步骤、操作、部件、组件和/或它们的组，但不排除存在或附加一个或更多个其它特征、整体、步骤、操作、部件、组件和/或它们的组。还要注意的是，如这里使用的，术语“基本上”、“大约”和其它类似的术语被用作近似术语而不用作程度术语，如此，它们被用来解释本领域普通技术人员将认识到的测量值、计算值和/或提供的值的固有偏差。The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and/or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and/or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and/or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values and/or the values provided that will be recognized by those of ordinary skill in the art.
需要说明的是：本申请中所涉及的“近端”是指距离操作者较近的一端，“远端”是指距离操作者较远的一端。It should be noted that the “proximal end” mentioned in the present application refers to the end closer to the operator, and the “distal end” refers to the end farther from the operator.
参见图1-图9所示，本发明提供了一种消化道造瘘用球囊抽吸装置，包括：Referring to FIGS. 1 to 9 , the present invention provides a balloon suction device for digestive tract fistula, comprising:
导管1，导管1具有贯穿其两端的抽吸通道103，导管1上还设有气体通道104；The catheter 1 has a suction channel 103 running through both ends thereof, and a gas channel 104 is also provided on the catheter 1;
球囊2，球囊2套设在导管1的远端，气体通道104的远端与球囊2内部连通；The balloon 2 is sleeved on the distal end of the catheter 1, and the distal end of the gas channel 104 is communicated with the interior of the balloon 2;
充气单元7，充气单元7与气体通道104的近端连接，充气单元7被配置为向球囊2内充气或将球囊2内的气体排出；An inflation unit 7, the inflation unit 7 is connected to the proximal end of the gas channel 104, and the inflation unit 7 is configured to inflate the balloon 2 or discharge the gas in the balloon 2;
其中，充气状态下的球囊2为碗状结构，具有内凹曲面和外凸曲面；外凸曲面能够与消化道的内壁贴合；内凹曲面与外凸曲面之间构成充气空间202，充气空间202与气体通道104的远端连通；内凹曲面形成能够暂存消化道内的内容物的抽吸容腔201，导管1的远端开口位于充气状态下的球囊2的内凹曲面中心处，并与抽吸容腔201连通。Among them, the balloon 2 in the inflated state is a bowl-shaped structure with a concave surface and a convex surface; the convex surface can fit the inner wall of the digestive tract; an inflation space 202 is formed between the concave surface and the convex surface, and the inflation space 202 is connected to the distal end of the gas channel 104; the concave surface forms a suction cavity 201 that can temporarily store the contents in the digestive tract, and the distal opening of the catheter 1 is located at the center of the concave surface of the balloon 2 in the inflated state, and is connected to the suction cavity 201.
本实施例中，消化道造瘘用球囊抽吸装置还包括压力传感器3、控制模块6和电源模块8；压力传感器3设在球囊2与肠壁28接触的表面并用于检测球囊2与消化道之间的压力，压力传感器3与控制模块6电性连接，压力传感器3将测得的电信号传输至控制模块6；充气单元7与控制模块6电性连接，气体通道104的近端与充气单元7连接，充气单元7用于向球囊2内充气或将球囊2内的气体排出；压力传感器3、控制模块6、充气单元7均与电源模块8连接，由电源模块8向压力传感器3、控制模块6、充气单元7供电。In this embodiment, the balloon suction device for gastrointestinal fistula also includes a pressure sensor 3, a control module 6 and a power module 8; the pressure sensor 3 is arranged on the surface of the balloon 2 that contacts the intestinal wall 28 and is used to detect the pressure between the balloon 2 and the digestive tract, the pressure sensor 3 is electrically connected to the control module 6, and the pressure sensor 3 transmits the measured electrical signal to the control module 6; the inflation unit 7 is electrically connected to the control module 6, and the proximal end of the gas channel 104 is connected to the inflation unit 7, and the inflation unit 7 is used to inflate the balloon 2 or discharge the gas in the balloon 2; the pressure sensor 3, the control module 6, and the inflation unit 7 are all connected to the power module 8, and the power module 8 supplies power to the pressure sensor 3, the control module 6, and the inflation unit 7.
在实际使用时，导管1的远端经腹壁23穿入消化道内，球囊2同样植入消化道内，然后通过充气单元7向球囊2内充气；消化道在蠕动期间，压力传感器3实时检测球囊2与消化道内壁之间的压力，并将检测到的信号传输至控制模块6，控制模块6根据球囊2与消化道内壁之间压力的大小控制充气单元7充气或排气；当球囊2与消化道内壁之间的压力小于设定的阈值时，由控制模块6控制充气单元7向球囊2内充入一定量的气体；当球囊2与消化道内壁之间的压力大于设定的阈值时，由控制模块6控制充气单元7将球囊2内的气体排出一部分；消化道在蠕动期间，通过前述方式使球囊2与内壁之间始终具有适当的压力，从而使球囊2紧贴消化道的内壁，阻止消化道内的内容物22流入下段消化道，为下段消化道的愈合提供适宜的环境，肠壁愈合后的状态参见图11。可以通过抽吸通道103对消化道腔内进行冲洗、吸取消化道内容物22等操作。待吻合口25愈合之后，通过充气单元7将球囊2内的气体排出，使球囊2变小，然后通过手术拔出导管1。In actual use, the distal end of the catheter 1 penetrates into the digestive tract through the abdominal wall 23, and the balloon 2 is also implanted in the digestive tract, and then the balloon 2 is inflated by the inflation unit 7; during the peristalsis of the digestive tract, the pressure sensor 3 detects the pressure between the balloon 2 and the inner wall of the digestive tract in real time, and transmits the detected signal to the control module 6, and the control module 6 controls the inflation unit 7 to inflate or exhaust according to the pressure between the balloon 2 and the inner wall of the digestive tract; when the pressure between the balloon 2 and the inner wall of the digestive tract is less than the set threshold value, the control module 6 controls the inflation unit 7 to inflate a certain amount of gas into the balloon 2; when the pressure between the balloon 2 and the inner wall of the digestive tract is greater than the set threshold value, the control module 6 controls the inflation unit 7 to discharge a part of the gas in the balloon 2; during the peristalsis of the digestive tract, the above-mentioned method is used to ensure that there is always an appropriate pressure between the balloon 2 and the inner wall, so that the balloon 2 is close to the inner wall of the digestive tract, preventing the contents 22 in the digestive tract from flowing into the lower digestive tract, and providing a suitable environment for the healing of the lower digestive tract. The state of the intestinal wall after healing is shown in Figure 11. The suction channel 103 can be used to flush the digestive tract cavity and suck the digestive tract contents 22. After the anastomosis 25 is healed, the gas in the balloon 2 is discharged through the inflation unit 7 to make the balloon 2 smaller, and then the catheter 1 is removed by surgery.
为了便于在植入手术的过程中识别导管1的远端以及球囊2在人体内的位置，该消化道造瘘用球囊抽吸装置还包括设在导管1远端的第一显影环4和设在球囊2表面的第二显影环5。第一显影环4和第二显影环5采用X射线不透过的材料，例如金、银、铂、钽、铱、钨和它们的合金等。在球囊抽吸装置插入人体时，第一显影环4可以用于确认导管1远端的位置，第二显影环5可以用于确认球囊2的位置，为手术操作提供便利。In order to facilitate identification of the distal end of the catheter 1 and the position of the balloon 2 in the human body during the implantation operation, the gastrointestinal ostomy balloon suction device also includes a first developing ring 4 arranged at the distal end of the catheter 1 and a second developing ring 5 arranged on the surface of the balloon 2. The first developing ring 4 and the second developing ring 5 are made of X-ray opaque materials, such as gold, silver, platinum, tantalum, iridium, tungsten and their alloys. When the balloon suction device is inserted into the human body, the first developing ring 4 can be used to confirm the position of the distal end of the catheter 1, and the second developing ring 5 can be used to confirm the position of the balloon 2, which facilitates the surgical operation.
球囊2在充气状态下的剖面形状参见图2所示，球囊2的远端具有一个敞开的抽吸容腔201，抽吸容腔201的开口方向朝向导管1的远端，球囊2充气后，消化道里的内容物22可以进入球囊2远端的抽吸容腔201内。The cross-sectional shape of the balloon 2 in the inflated state is shown in FIG2 . The distal end of the balloon 2 has an open suction cavity 201 , and the opening direction of the suction cavity 201 is toward the distal end of the catheter 1 . After the balloon 2 is inflated, the contents 22 in the digestive tract can enter the suction cavity 201 at the distal end of the balloon 2 .
在本发明中，导管1包括位于近端的第一段101和位于远端的第二段102，球囊2套设在第二段102的外侧，导管1的第二段102的外壁可以构成充气空间的一部分内壁，气体通道104内的气体可以进入球囊2与导管1之间的充气空间202内以使球囊2膨胀，抽吸通道103与球囊2之间是不连通的；抽吸通道103同时贯穿第一段101和第二段102，气体通道104贯穿第一段101，气体通道104的远端延伸至第二段102并与球囊2连通，第二段102和球囊2均采用生物相容性可降解材质，通过注入诱导介质使球囊和第二段发生降解，进而实现人工控制球囊2与导管1的分离，便于取出。消化道下段的待吻合口25愈合后，分别通过抽吸通道103和气体通道104向第二段102和球囊2内充入诱导介质，诱导介质与第二段102和球囊2接触后，第二段102和球囊2便迅速降解，使第一段101与第二段102之间自然脱落，以便于后续顺利拔出导管1的第一段101。In the present invention, the catheter 1 includes a first section 101 located at the proximal end and a second section 102 located at the distal end. The balloon 2 is sleeved on the outside of the second section 102. The outer wall of the second section 102 of the catheter 1 can constitute a part of the inner wall of the inflation space. The gas in the gas channel 104 can enter the inflation space 202 between the balloon 2 and the catheter 1 to expand the balloon 2. The suction channel 103 is not connected to the balloon 2; the suction channel 103 runs through the first section 101 and the second section 102 at the same time, the gas channel 104 runs through the first section 101, and the distal end of the gas channel 104 extends to the second section 102 and is connected to the balloon 2. The second section 102 and the balloon 2 are both made of biocompatible degradable materials. The balloon and the second section are degraded by injecting an inducing medium, thereby achieving artificial control of the separation of the balloon 2 and the catheter 1 for easy removal. After the anastomotic opening 25 of the lower section of the digestive tract is healed, an inducing medium is filled into the second section 102 and the balloon 2 through the suction channel 103 and the gas channel 104 respectively. After the inducing medium comes into contact with the second section 102 and the balloon 2, the second section 102 and the balloon 2 are rapidly degraded, causing the first section 101 and the second section 102 to fall off naturally, so as to facilitate the subsequent smooth removal of the first section 101 of the catheter 1.
在具体实施时，消化道造瘘用球囊抽吸装置还包括用于使压力传感器3与控制模块6电性连接的导线9，导线9采用生物相容性金属材质并埋设在导管1内，如图5所示，导线9在第二段102内设有相互搭接的接头。当第二段102降解后，搭接在一起的导线9相互解离，从而便于第二段102以及球囊2与第一段101分离。In a specific implementation, the balloon suction device for gastrointestinal fistula further includes a wire 9 for electrically connecting the pressure sensor 3 to the control module 6. The wire 9 is made of a biocompatible metal material and is buried in the catheter 1. As shown in FIG5 , the wire 9 is provided with overlapping joints in the second section 102. When the second section 102 is degraded, the overlapping wires 9 are dissociated from each other, thereby facilitating the separation of the second section 102 and the balloon 2 from the first section 101.
在本发明中，如图10所示，消化道造瘘用球囊抽吸装置还包括位于球囊2的近端与第二段102衔接处的第一磁片26和第二磁片27，第一磁片26和第二磁片27分别位于导管1的两侧并与导管1可拆卸连接。如图9所示，当该消化道造瘘用球囊抽吸装置植入人体目标位置时，第一磁片26位于消化道外侧，第二磁片27位于消化道内，后期将第一段101拔出的瞬间，第一磁片26与第二磁片27相互吸合在一起，使两层消化道壁被夹在第一磁片26与第二磁片27之间，从而将肠壁28的开口封堵，防止内容物22从开口处流出。而且，第一磁片26与第二磁片27之间的相吸引有利于促进肠壁28开口愈合。In the present invention, as shown in FIG10 , the balloon suction device for digestive tract fistula also includes a first magnetic sheet 26 and a second magnetic sheet 27 located at the junction of the proximal end of the balloon 2 and the second section 102. The first magnetic sheet 26 and the second magnetic sheet 27 are respectively located on both sides of the catheter 1 and are detachably connected to the catheter 1. As shown in FIG9 , when the balloon suction device for digestive tract fistula is implanted in the target position of the human body, the first magnetic sheet 26 is located outside the digestive tract, and the second magnetic sheet 27 is located inside the digestive tract. At the moment when the first section 101 is pulled out later, the first magnetic sheet 26 and the second magnetic sheet 27 are attracted to each other, so that the two layers of the digestive tract wall are sandwiched between the first magnetic sheet 26 and the second magnetic sheet 27, thereby blocking the opening of the intestinal wall 28 and preventing the contents 22 from flowing out of the opening. Moreover, the attraction between the first magnetic sheet 26 and the second magnetic sheet 27 is conducive to promoting the healing of the opening of the intestinal wall 28.
在一些实施例中，前述的第一磁片26和第二磁片27由两个单向生物瓣膜取代。在手术的过程中首先将两个单向生物瓣膜缝合在肠壁28上，导管1的远端和球囊2从两个单向生物瓣膜之间通过；在术后拔出导管1后，两个单向生物瓣膜闭合，阻挡消化道里的内容物流入腹腔。In some embodiments, the first magnetic sheet 26 and the second magnetic sheet 27 are replaced by two one-way bioprosthetic valves. During the operation, the two one-way bioprosthetic valves are first sutured to the intestinal wall 28, and the distal end of the catheter 1 and the balloon 2 pass between the two one-way bioprosthetic valves; after the catheter 1 is pulled out after the operation, the two one-way bioprosthetic valves are closed to prevent the contents in the digestive tract from flowing into the abdominal cavity.
在本发明中，压力传感器3采用柔性薄膜压力传感器3，压力传感器3可以随着球囊2形态的变化而变形，压力传感器3嵌入球囊2的外表面并位于球囊2膨胀后的最大直径位置，避免压力传感器3突出于球囊2的表面，可以保证球囊2与消化道内壁紧密贴合，同时使压力传感器3具有较高的测量精度。In the present invention, the pressure sensor 3 adopts a flexible film pressure sensor 3. The pressure sensor 3 can be deformed as the shape of the balloon 2 changes. The pressure sensor 3 is embedded in the outer surface of the balloon 2 and is located at the maximum diameter position after the balloon 2 is expanded, so as to avoid the pressure sensor 3 protruding from the surface of the balloon 2. This can ensure that the balloon 2 fits tightly against the inner wall of the digestive tract and at the same time make the pressure sensor 3 have higher measurement accuracy.
在一些实施例中，压力传感器3的数量为多个，多个压力传感器3环绕球囊2间隔分布。如图3所示，四个压力传感器3环绕球囊2等距间隔分布，四个压力传感器3分别检测球囊2的四个部位，当其中一个压力传感器3检测到的压力值小于设定的阈值时，便可以通过控制模块6控制充气单元7向球囊2内充气，由此保证球囊2的各个部位均与消化道内壁紧密贴合。In some embodiments, there are multiple pressure sensors 3, and the multiple pressure sensors 3 are spaced around the balloon 2. As shown in FIG3 , four pressure sensors 3 are spaced equidistantly around the balloon 2, and the four pressure sensors 3 detect four parts of the balloon 2 respectively. When the pressure value detected by one of the pressure sensors 3 is less than a set threshold, the control module 6 can control the inflation unit 7 to inflate the balloon 2, thereby ensuring that all parts of the balloon 2 are in close contact with the inner wall of the digestive tract.
为了便于使用，导管1的近端设有支管10，支管10与导管1之间存在一夹角，气体通道104的近端贯穿支管10并与充气单元7连接。如图1所示，支管10连接在导管1上之后，支管10与导管1近似呈Y形。可选的，支管10与导管1之间的夹角为10-40°。For ease of use, a branch tube 10 is provided at the proximal end of the catheter 1. There is an angle between the branch tube 10 and the catheter 1. The proximal end of the gas channel 104 passes through the branch tube 10 and is connected to the inflation unit 7. As shown in FIG1 , after the branch tube 10 is connected to the catheter 1, the branch tube 10 and the catheter 1 are approximately Y-shaped. Optionally, the angle between the branch tube 10 and the catheter 1 is 10-40°.
为了便于将消化道内的内容物22抽出，消化道造瘘用球囊抽吸装置还包括用于抽吸内容物22的抽吸组件24，该抽吸组件24主要由抽吸盒11、集废囊12、真空泵13、第三管16、冲洗泵17、抽吸阀18、排液阀19和冲洗阀20组成。In order to facilitate the extraction of the contents 22 in the digestive tract, the balloon suction device for digestive tract fistula also includes a suction component 24 for sucking the contents 22, and the suction component 24 is mainly composed of a suction box 11, a waste collection bag 12, a vacuum pump 13, a third tube 16, a flushing pump 17, a suction valve 18, a drain valve 19 and a flushing valve 20.
参见图6所示，抽吸盒11内设有第一腔室1101和第二腔室1102，第二腔室1102内用于盛放冲洗液，抽吸盒11上设有与第一腔室1101连通的第一管14和第二管15，第一管14和第二管15分别位于第一腔室1101的上方和下方，第一管14通过管路与抽吸通道103连接；集废囊12设在第一腔室1101内且其两端分别与第一管14和第二管15连接，可以经由第二管15将集废囊12内的污物排出；真空泵13设在第一腔室1101内且位于抽吸盒11与集废囊12之间，集废囊12采用具有弹性的橡胶材质，当真空泵13启动时可以使集废囊12外侧的气压变小，从而使集废囊12膨胀；第三管16的一端与第一管14连接，第三管16的另一端伸入第二腔室1102内；冲洗泵17设在第三管16上；抽吸阀18设在第一管14上且位于第三管16与集废囊12之间，排液阀19设在第二管15上，冲洗阀20设在第一管14与冲洗泵17之间的第三管16上；真空泵13和冲洗泵17均与电源模块8、控制模块6电连接电性连接。As shown in FIG. 6 , a first chamber 1101 and a second chamber 1102 are provided in the suction box 11. The second chamber 1102 is used to hold a flushing liquid. A first tube 14 and a second tube 15 are provided on the suction box 11, which are connected to the first chamber 1101. The first tube 14 and the second tube 15 are respectively located above and below the first chamber 1101. The first tube 14 is connected to the suction channel 103 through a pipeline. The waste collecting bag 12 is provided in the first chamber 1101 and its two ends are respectively connected to the first tube 14 and the second tube 15. The dirt in the waste collecting bag 12 can be discharged through the second tube 15. The vacuum pump 13 is provided in the first chamber 1101 and is located between the suction box 11 and The waste collecting bag 12 is made of elastic rubber material. When the vacuum pump 13 is started, the air pressure outside the waste collecting bag 12 can be reduced, thereby expanding the waste collecting bag 12; one end of the third tube 16 is connected to the first tube 14, and the other end of the third tube 16 extends into the second chamber 1102; the flushing pump 17 is arranged on the third tube 16; the suction valve 18 is arranged on the first tube 14 and is located between the third tube 16 and the waste collecting bag 12, the drain valve 19 is arranged on the second tube 15, and the flushing valve 20 is arranged on the third tube 16 between the first tube 14 and the flushing pump 17; the vacuum pump 13 and the flushing pump 17 are both electrically connected to the power module 8 and the control module 6.
本发明中的充气单元7可以采用气泵，电源模块8可以为锂电池，控制模块6可以采用型号为STC90C516RD的单片机。The inflation unit 7 in the present invention may be an air pump, the power module 8 may be a lithium battery, and the control module 6 may be a single chip microcomputer of model STC90C516RD.
当需要抽吸消化道里的内容物22时，排液阀19和冲洗阀20关闭，抽吸阀18打开，启动真空泵13后集废囊12体积膨胀，集废囊12内的压强变小，因此消化道里的内容物22将被吸进集废囊12内。当需要排出集废囊12内的污物时，打开排液阀19即可使污物从第二管15排出。如若消化道内的内容物22不易被吸出来，可以关闭排液阀19和抽吸阀18关闭，将冲洗阀20打开，然后启动冲洗泵17向消化道内注入液体，将内容物22冲稀，然后再关闭冲洗阀20，打开抽吸阀18，启动真空泵13将消化道里被稀释后的内容物22抽出，避免消化道下段的吻合口25接触到大量的细菌。When the contents 22 in the digestive tract need to be sucked out, the drain valve 19 and the flushing valve 20 are closed, the suction valve 18 is opened, and the volume of the waste collection bag 12 is expanded after the vacuum pump 13 is started, and the pressure in the waste collection bag 12 becomes smaller, so the contents 22 in the digestive tract will be sucked into the waste collection bag 12. When the waste in the waste collection bag 12 needs to be discharged, the drain valve 19 can be opened to discharge the waste from the second tube 15. If the contents 22 in the digestive tract are not easy to be sucked out, the drain valve 19 and the suction valve 18 can be closed, the flushing valve 20 can be opened, and then the flushing pump 17 can be started to inject liquid into the digestive tract to dilute the contents 22, and then the flushing valve 20 can be closed, the suction valve 18 can be opened, and the vacuum pump 13 can be started to extract the diluted contents 22 in the digestive tract to prevent the anastomosis 25 in the lower part of the digestive tract from contacting a large number of bacteria.
在抽吸的过程中，假如抽吸通道103发生堵塞，可以关闭抽吸阀18，打开冲洗阀20，然后由冲洗泵17向抽吸通道103内注入液体，注入抽吸通道103内的液体将会把抽吸通道103内的堵塞物冲散，从而实现了疏通抽吸通道103的功能。在使用的过程中，还可以在第二管15的下端绑扎一个收集带，当抽吸阀18和排液阀19打开、冲洗阀20关闭时，消化道里的内容物22和气体可以自动流入收集带。During the suction process, if the suction channel 103 is blocked, the suction valve 18 can be closed, the flushing valve 20 can be opened, and then the flushing pump 17 can inject liquid into the suction channel 103. The liquid injected into the suction channel 103 will disperse the blockage in the suction channel 103, thereby achieving the function of unblocking the suction channel 103. During use, a collection belt can also be tied at the lower end of the second tube 15. When the suction valve 18 and the drain valve 19 are opened and the flushing valve 20 is closed, the contents 22 and gas in the digestive tract can automatically flow into the collection belt.
为了便于使用，消化道造瘘用球囊抽吸装置还包括设在抽吸盒11外侧并与电源模块8电连接的触控屏21，触控屏21与控制模块6电连接，抽吸阀18和冲洗阀20均为电磁阀并与控制模块6电性连接。医护人员可以通过触控屏21来实现各种操作，极大地降低了使用难度。For ease of use, the gastrointestinal ostomy balloon suction device further includes a touch screen 21 disposed outside the suction box 11 and electrically connected to the power module 8. The touch screen 21 is electrically connected to the control module 6. The suction valve 18 and the flushing valve 20 are both solenoid valves and are electrically connected to the control module 6. Medical staff can perform various operations through the touch screen 21, which greatly reduces the difficulty of use.
与现有技术相比，本实施例提供的消化道造瘘用球囊抽吸装置可实现如下有益效果：Compared with the prior art, the balloon suction device for digestive tract fistula provided in this embodiment can achieve the following beneficial effects:
1、通过在导管上设置充气可膨胀的球囊，能够使球囊与消化道内壁之间始终具有适当的压力，从而使球囊紧贴消化道的内壁，阻止消化道内的内容物流入下段消化道，进而避免消化道内容物22和腹壁23的接触，为下段消化道的愈合提供适宜的环境，减少粪水性皮炎等临床并发症，促进吻合口的愈合，愈合后将装置从腹壁取出即可，避免进行二次还纳手术，有利于减少患者的病痛和医疗费用，节约医疗卫生资源。1. By arranging an inflatable balloon on the catheter, it is possible to always have appropriate pressure between the balloon and the inner wall of the digestive tract, so that the balloon is closely attached to the inner wall of the digestive tract, preventing the contents in the digestive tract from flowing into the lower digestive tract, thereby avoiding the contact between the digestive tract contents 22 and the abdominal wall 23, providing a suitable environment for the healing of the lower digestive tract, reducing clinical complications such as fecal dermatitis, and promoting the healing of the anastomosis. After healing, the device can be removed from the abdominal wall to avoid secondary reduction surgery, which is beneficial to reducing patients' pain and medical expenses and saving medical and health resources.
2、充气状态下的球囊为碗状结构，其内凹曲面形成能够暂存消化道内的内容物的抽吸容腔，导管的远端开口位于充气状态下的所述球囊的内凹曲面中心处，肠内容物能够暂时储存在球囊的抽吸容腔内，导管的远端开口即为导管的抽吸口，抽吸口位于碗状球囊的碗底中心，相对于现有在导管侧壁上设置小孔的方案，本申请能够快速的将暂存在球囊抽吸容腔内的肠内容物抽出，抽吸效率更高，显著降低了抽吸过程抽吸口被肠内容物堵住的风险。2. The balloon in the inflated state has a bowl-shaped structure, and its concave surface forms a suction cavity that can temporarily store the contents of the digestive tract. The distal opening of the catheter is located at the center of the concave surface of the balloon in the inflated state. The intestinal contents can be temporarily stored in the suction cavity of the balloon. The distal opening of the catheter is the suction port of the catheter, and the suction port is located at the center of the bottom of the bowl-shaped balloon. Compared with the existing solution of setting small holes on the side wall of the catheter, the present application can quickly extract the intestinal contents temporarily stored in the suction cavity of the balloon, with higher suction efficiency, and significantly reducing the risk of the suction port being blocked by intestinal contents during the suction process.
3、通过在导管远端设置第一显影环、在球囊表面设置第二显影环，能够实现精准植入，为手术操作提供便利。3. By setting a first developing ring at the distal end of the catheter and a second developing ring on the surface of the balloon, precise implantation can be achieved, providing convenience for surgical operations.
4、导管的第二段和球囊采用可降解材质，在吻合口愈合之后，通过注入诱导介质使所述球囊和第二段发生降解，只需将导管的第一段从腹壁取出，使得取出过程更加顺利，避免因球囊与肠壁粘接取出困难对患者造成痛苦，甚至对患者造成二次伤害的情况发生。4. The second section of the catheter and the balloon are made of degradable materials. After the anastomosis is healed, the balloon and the second section are degraded by injecting an inducing medium. Only the first section of the catheter needs to be removed from the abdominal wall, making the removal process smoother and avoiding the pain caused to the patient due to the difficulty in removal due to the adhesion of the balloon to the intestinal wall, or even causing secondary damage to the patient.
至此，已经详细描述了本申请的各实施例。为了避免遮蔽本申请的构思，没有描述本领域所公知的一些细节。本领域技术人员根据上面的描述，完全可以明白如何实施这里公开的技术方案。So far, the embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.
虽然已经通过示例对本申请的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上示例仅是为了进行说明，而不是为了限制本申请的范围。本领域的技术人员应该理解，可在不脱离本申请的范围和精神的情况下，对以上实施例进行修改或者对部分技术特征进行等同替换。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410251526.0ACN117815523B (en) | 2024-03-06 | 2024-03-06 | A balloon suction device for digestive tract fistula |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410251526.0ACN117815523B (en) | 2024-03-06 | 2024-03-06 | A balloon suction device for digestive tract fistula |
| Publication Number | Publication Date |
|---|---|
| CN117815523A CN117815523A (en) | 2024-04-05 |
| CN117815523Btrue CN117815523B (en) | 2024-06-11 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410251526.0AActiveCN117815523B (en) | 2024-03-06 | 2024-03-06 | A balloon suction device for digestive tract fistula |
| Country | Link |
|---|---|
| CN (1) | CN117815523B (en) |
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| CN115715176A (en)* | 2020-03-09 | 2023-02-24 | 巴里亚特克医疗公司 | Device for treating obesity or diabetes in a patient and method of selecting the same |
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| JP2003235852A (en)* | 2002-02-15 | 2003-08-26 | Pakkusu Oputeika Japan:Kk | Device for anastomosis of organ and method for using the same |
| CN101133969A (en)* | 2006-08-28 | 2008-03-05 | 奥林巴斯医疗株式会社 | Method for forming fistula, endoscope, catheter, magnet indwelling device, and magnet assembly |
| CN113677380A (en)* | 2019-04-11 | 2021-11-19 | 科洛普拉斯特公司 | Control of balloon size in intestinal lavage system |
| CN115715176A (en)* | 2020-03-09 | 2023-02-24 | 巴里亚特克医疗公司 | Device for treating obesity or diabetes in a patient and method of selecting the same |
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| CN117815523A (en) | 2024-04-05 |
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