CN210096413U - A kind of medical transnasal small intestine feeding tube - Google Patents

Abstract

The utility model discloses a medical intranasal small intestine feeding tube, including straightening head, body, connection the connecting pipe of straightening head and body, insert seal wire in the body, open a plurality of nutrient solution exports on the body, is 2.5cm ~ 3cm from the distance of the nearest nutrient solution export of body front end and connecting pipe rear end face. Because the distance between the nutrient solution outlet closest to the front end of the tube body and the rear end face of the connecting tube is 2.5 cm-3 cm, and the distance between the front end of the guide wire and the rear end face of the connecting tube is 1 cm-1.5 cm, the guide wire cannot penetrate out of the nutrient solution outlet to damage the intestinal wall, and the safety is improved; the utility model provides a small intestine feeding tube obviously increases the blind success rate of putting of intranasal small intestine feeding tube, reduces the complication.

Description

Translated fromChinese

一种医用经鼻小肠喂养管A kind of medical transnasal small intestine feeding tube

技术领域technical field

本实用新型属于医疗器械领域，涉及一种医用经鼻小肠喂养管。The utility model belongs to the field of medical devices and relates to a medical transnasal small intestine feeding tube.

背景技术Background technique

对危重症患者需要早期实施肠内营养干预，要实施早期肠内营养干预需要人工置入导管以建立管饲途径。危重症患者在建立人工气道进行机械通气时，往往存在着高返流、高误吸的风险，故临床上对于此类患者多将导管留置在空肠内，以降低喂养相关并发症的发生率。鼻空肠置管虽然作为危重患者早期肠内营养干预的首选，但是管饲途径的建立在临床实际操作中存在许多问题，限制了早期肠内营养的进程。For critically ill patients, early enteral nutrition intervention is required, and to implement early enteral nutrition intervention requires manual insertion of a catheter to establish a tube feeding route. Critically ill patients often have high risks of high reflux and high aspiration when establishing artificial airways for mechanical ventilation. Therefore, in clinical practice, catheters are often indwelled in the jejunum to reduce the incidence of feeding-related complications. . Although nasojejunal intubation is the first choice for early enteral nutrition intervention in critically ill patients, there are many problems in the establishment of tube feeding route in clinical practice, which limit the process of early enteral nutrition.

目前使用的经鼻小肠喂养管由喂养管软管体和插入所述喂养管软管体内的导丝组成，使用时，需要将所述喂养管软管体插入到人体的十二直肠或空肠内进行营养喂养，在医院操作人员对病人进行盲插置管时，在经鼻小肠喂养管进入幽门后，由于从幽门进入十二指肠降部，生理弯曲度小，而带导丝的鼻肠管其前端柔性不够，在进入幽门后，前端容易顶在肠壁上，不易弯曲，即使转动经鼻小肠喂养管，也不能改变方向，只能将导丝退出1~1.5cm，以增加经鼻小肠喂养管管前端的柔性，遇到阻力后，容易改变方向，使经鼻小肠喂养管容易进入十二指肠降部；另外，由于在经鼻小肠喂养管软管体前端1cm处有侧孔，导丝退出1~1.5cm后，导丝前端容易从侧孔处穿出而损伤肠壁。The currently used transnasal small intestine feeding tube consists of a feeding tube tube and a guide wire inserted into the feeding tube tube. When in use, the feeding tube tube needs to be inserted into the duodenum or jejunum of the human body. For nutritional feeding, when the hospital operator blindly intubates the patient, after the feeding tube enters the pylorus through the nasal small intestine, the physiological curvature is small due to entering the descending part of the duodenum from the pylorus, and the nasoenteric tube with guide wire Its front end is not flexible enough. After entering the pylorus, the front end is easy to push against the intestinal wall and is not easy to bend. Even if the transnasal small intestine feeding tube is turned, the direction cannot be changed. The flexibility of the front end of the feeding tube makes it easy to change the direction after encountering resistance, so that the feeding tube can easily enter the descending part of the duodenum; After the guide wire is withdrawn 1~1.5cm, the front end of the guide wire is easy to pass through the side hole and damage the intestinal wall.

实用新型内容Utility model content

针对上述不足，本实用新型提供一种医用经鼻小肠喂养管，解决了在盲插成功率低且容易从侧孔处穿出而损伤肠壁的问题。In view of the above deficiencies, the present invention provides a medical transnasal small intestine feeding tube, which solves the problems of low success rate of blind insertion and easy to penetrate through the side hole to damage the intestinal wall.

为了达到上述目的，本实用新型所采用的技术方案如下：一种医用经鼻小肠喂养管，包括矫直头、管体、连接所述矫直头和管体的连接管、插入所述管体内的导丝，其特征在于，所述管体上开多个营养液出口，离管体前端最近的一个营养液出口与连接管后端面的距离为2.5cm～3cm。In order to achieve the above purpose, the technical scheme adopted by the present invention is as follows: a medical transnasal small intestine feeding tube, comprising a straightening head, a tube body, a connecting tube connecting the straightening head and the tube body, a tube inserted into the tube body The guide wire is characterized in that a plurality of nutrient solution outlets are opened on the tube body, and the distance between the nutrient solution outlet closest to the front end of the tube body and the rear end surface of the connecting tube is 2.5 cm to 3 cm.

作为优选，所述导丝上还具有用于标记导丝前端与连接管后端面齐平的第一标识和用于标记导丝前端与连接管后端面相距预定距离的第二标识。Preferably, the guide wire further has a first mark for marking the front end of the guide wire to be flush with the rear end surface of the connecting pipe and a second mark for marking the front end of the guide wire and the rear end face of the connecting pipe at a predetermined distance.

作为优选，当导丝前端与连接管后端面齐平时，第一标识与管体末端齐平；当导丝前端与连接管后端面相距预定距离时，所述第二标识与管体末端齐平。Preferably, when the front end of the guide wire is flush with the rear end of the connecting tube, the first mark is flush with the end of the tube body; when the front end of the guide wire is at a predetermined distance from the rear end of the connecting tube, the second mark is flush with the end of the tube body .

作为优选，所述预定距离为1cm~1.5cm。Preferably, the predetermined distance is 1 cm˜1.5 cm.

作为优选，所述导丝末端具有刻度条。Preferably, the end of the guide wire has a scale bar.

作为优选，当导丝前端与连接管后端面齐平时，管体末端与刻度条的“0”刻度对齐。Preferably, when the front end of the guide wire is flush with the rear end surface of the connecting tube, the end of the tube body is aligned with the "0" scale of the scale bar.

作为优选，所述矫直头的前端为一球体、后端为一圆柱状壳体，圆柱状壳体的侧面开有贯通侧面的第一通孔，圆柱状壳体的前端开有第二通孔，圆柱状壳体的后端套接在连接管上且与连接管相连通，圆柱状壳体的前端还一体成型有U形架，U形架通过连接杆与球体相连。Preferably, the front end of the straightening head is a sphere, the rear end is a cylindrical shell, the side surface of the cylindrical shell is provided with a first through hole penetrating the side surface, and the front end of the cylindrical shell is provided with a second through hole. The rear end of the cylindrical shell is sleeved on the connecting pipe and communicated with the connecting pipe, the front end of the cylindrical shell is also integrally formed with a U-shaped frame, and the U-shaped frame is connected with the sphere through a connecting rod.

作为优选，所述管体的前段部分呈猪尾状。Preferably, the front part of the pipe body is in the shape of a pigtail.

作为优选，所述管体外壁具有刻度。Preferably, the outer wall of the tube has a scale.

作为优选，所述管体的管壁上具有不透X光的细线。Preferably, the tube wall of the tube body has thin lines that are opaque to X-rays.

相对于现有技术，本实用新型的有益效果如下：小肠喂养管置入胃内，再进入幽门，由于从幽门进入十二指肠降部，生理弯曲度小，需将导丝后撤，使导丝上的第二标识与管体末端齐平，此时，导丝前端与连接管后端面相距1cm~1.5cm，从而增加了小肠喂养管前端的柔性；又由于矫直头的存在，在遇到阻力后，不容易改变方向，使得小肠喂养管前端容易进入十二指肠。由于离管体前端最近的一个营养液出口与连接管后端面的距离为2.5cm～3cm，而导丝前端与连接管后端面相距1cm~1.5cm，导丝不会从营养液出口穿出而损伤肠壁，增加安全性；本实用新型提供的小肠喂养管明显增加小肠喂养管盲置的成功率，减少并发症。Compared with the prior art, the beneficial effects of the present utility model are as follows: the small intestine feeding tube is placed in the stomach, and then enters the pylorus. Since it enters the descending part of the duodenum from the pylorus, the physiological curvature is small, and the guide wire needs to be withdrawn, so that the The second mark on the guide wire is flush with the end of the tube body. At this time, the distance between the front end of the guide wire and the rear end of the connecting tube is 1cm~1.5cm, thereby increasing the flexibility of the front end of the small intestine feeding tube; After encountering resistance, it is not easy to change direction, so that the front end of the small intestine feeding tube can easily enter the duodenum. Since the distance between the nutrient solution outlet closest to the front end of the tube body and the rear end surface of the connecting tube is 2.5cm~3cm, and the distance between the front end of the guide wire and the rear end surface of the connecting tube is 1cm~1.5cm, the guide wire will not pass through the nutrient solution outlet and The intestinal wall is damaged and safety is increased; the small intestine feeding tube provided by the utility model obviously increases the success rate of blind placement of the small intestine feeding tube and reduces complications.

附图说明Description of drawings

图1是本实用新型的立体图；Fig. 1 is the perspective view of the present utility model;

图2是本实用新型前端部分的剖视图；Fig. 2 is the sectional view of the front end part of the present utility model;

图3是导丝上的第一标识和第二标识的示意图；Fig. 3 is the schematic diagram of the first identification and the second identification on the guide wire;

图4是导丝上的刻度条的示意图；Fig. 4 is the schematic diagram of the scale bar on the guide wire;

图中：矫直头1、管体2、连接管3、导丝4、营养液出口5、第一标识6、第二标识7、刻度条8、球体101、圆柱状壳体102、第一通孔103第二通孔104、U形架105、连接杆106。In the figure: straightening head 1,tube body 2, connectingtube 3,guide wire 4,nutrient solution outlet 5,first mark 6,second mark 7,scale bar 8,sphere 101,cylindrical shell 102, first Throughhole 103, second throughhole 104,U-shaped frame 105, connectingrod 106.

具体实施方式Detailed ways

以下参照附图，进一步描述本实用新型的具体技术方案，以便于本领域的技术人员进一步地理解本发明，而不构成对其权利的限制。The specific technical solutions of the present invention are further described below with reference to the accompanying drawings, so as to facilitate those skilled in the art to further understand the present invention, but not to limit the rights thereof.

实施例1：Example 1:

如图1所示，一种医用经鼻小肠喂养管，包括矫直头1、管体2、连接所述矫直头1和管体2的连接管3（为金属材质）、插入所述管体2内的导丝4，管体2的前段部分弯曲成猪尾状；所述矫直头1的前端为一球体101（防止戳伤内部器官）、后端为一圆柱状壳体102，圆柱状壳体102的侧面开有贯通侧面的第一通孔103，圆柱状壳体102的前端开有第二通孔104，圆柱状壳体102的后端套接在连接管3上且与连接管3相连通，圆柱状壳体102的前端还一体成型有U形架105，U形架105通过连接杆106与球体101相连，矫直头1由一体热塑形成；所述管体2上开多个营养液出口5（一般为2-3个，主要是为了当其中一个被堵塞时，另外一个或几个还可用；且营养液出口5分布在不同的管体2横截面上，从而最大限度的不削减管体2的抗弯强度）；所述管体2材料为医用聚氨酯弹性体。离管体2前端最近的一个营养液出口5与连接管3后端面的距离为2.5cm～3cm。As shown in FIG. 1, a medical transnasal small intestine feeding tube includes a straightening head 1, atube body 2, a connecting tube 3 (which is made of metal) connecting the straightening head 1 and thetube body 2, and the tube is inserted into the tube. For theguide wire 4 in thebody 2, the front part of thetube body 2 is bent into a pigtail shape; the front end of the straightening head 1 is a sphere 101 (to prevent poking internal organs), and the rear end is acylindrical shell 102. The side surface of thecylindrical shell 102 is provided with a first throughhole 103 penetrating the side surface, the front end of thecylindrical shell 102 is provided with a second throughhole 104, and the rear end of thecylindrical shell 102 is sleeved on the connectingpipe 3 and connected with Thetube 3 is connected, and the front end of thecylindrical shell 102 is also integrally formed with aU-shaped frame 105. The U-shapedframe 105 is connected to thesphere 101 through a connectingrod 106, and the straightening head 1 is formed of integral thermoplastic; Open a plurality of nutrient solution outlets 5 (usually 2-3, mainly because when one of them is blocked, the other one or several are still available; and thenutrient solution outlets 5 are distributed on different cross sections of thepipe body 2, thereby The flexural strength of thetube body 2 is not reduced to the greatest extent); the material of thetube body 2 is medical polyurethane elastomer. The distance between thenutrient solution outlet 5 closest to the front end of thepipe body 2 and the rear end surface of the connectingpipe 3 is 2.5 cm to 3 cm.

所述导丝4上还具有用于标记导丝4前端与连接管3后端面齐平的第一标识6和用于标记导丝4前端与连接管3后端面相距预定距离的第二标识7。当导丝4前端与连接管3后端面齐平时，第一标识6与管体2末端齐平；当导丝4前端与连接管3后端面相距预定距离时，所述第二标识7与管体2末端齐平。所述预定距离为1cm~1.5cm。Theguide wire 4 also has afirst mark 6 for marking the front end of theguide wire 4 to be flush with the rear end surface of the connectingpipe 3 and asecond mark 7 for marking the front end of theguide wire 4 and the rear end face of the connectingpipe 3 at a predetermined distance. . When the front end of theguide wire 4 is flush with the rear end of the connectingtube 3, thefirst mark 6 is flush with the end of thetube body 2; when the front end of theguide wire 4 is at a predetermined distance from the rear end of the connectingtube 3, thesecond mark 7Body 2 ends flush. The predetermined distance is 1 cm˜1.5 cm.

在盲插置管过程中，为了知道插入管体2的长度，在管体2外壁设置刻度，只要每隔10cm有个刻度标记即可；当然也可以有更精确的刻度值。In the process of blind insertion of the tube, in order to know the length of the insertedtube body 2, a scale is set on the outer wall of thetube body 2, as long as there is a scale mark every 10cm; of course, a more accurate scale value is also possible.

所述管体2的管壁上具有不透X光的细线，一方面是可在X线透视下置小肠喂养管，另一方面是已完成置管后，通过X射线来确认是否成功置管。The tube wall of thetube body 2 has a thin line that is opaque to X-rays. On the one hand, the small intestine feeding tube can be placed under X-ray fluoroscopy. Tube.

本实用新型的使用方法如下：The use method of the present utility model is as follows:

为了使管体更容易插入，管体的前段用无菌蒸馏水湿润。先将导丝4的前端一直插入至连接管3的后端面，管体2前段的猪尾状弯曲被矫直，此时导丝4上的第一标识6与管体2末端齐平；To make insertion of the tube easier, the front section of the tube is moistened with sterile distilled water. First, insert the front end of theguide wire 4 all the way to the rear end surface of the connectingtube 3, and straighten the pigtail-shaped bend of the front section of thetube body 2, at this time, thefirst mark 6 on theguide wire 4 is flush with the end of thetube body 2;

开始将矫直头1从患者的鼻孔中插入，将管体2和导丝4一起缓慢推进，直到小肠喂养管置入胃内，再进入幽门，由于从幽门进入十二指肠降部，生理弯曲度小，需将导丝4后撤，使导丝4上的第二标识7与管体2末端齐平，此时，导丝4前端与连接管3后端面相距1cm~1.5cm，从而增加了小肠喂养管前端的柔性；又由于矫直头1的存在，在遇到阻力后，不容易改变方向；再继续缓慢前进，矫直头1容易从幽门进入十二指肠降部，最后进入小肠。由于离管体2前端最近的一个营养液出口5与连接管3后端面的距离为2.5cm～3cm，而导丝4前端与连接管3后端面相距1cm~1.5cm，导丝4不会从营养液出口5穿出而损伤肠壁，增加安全性；本实用新型提供的小肠喂养管明显增加小肠喂养管盲置的成功率，减少并发症。Begin to insert the straightening head 1 from the patient's nostril, and slowly advance thetube body 2 and guidewire 4 together until the small intestine feeding tube is placed in the stomach, and then into the pylorus. If the curvature is small, theguide wire 4 needs to be withdrawn so that thesecond mark 7 on theguide wire 4 is flush with the end of thetube body 2. At this time, the front end of theguide wire 4 and the rear end surface of the connectingtube 3 are separated by 1 cm to 1.5 cm, so that the The flexibility of the front end of the small intestine feeding tube is increased; and due to the existence of the straightening head 1, it is not easy to change the direction after encountering resistance; and then continue to move slowly, the straightening head 1 can easily enter the descending part of the duodenum from the pylorus, and finally into the small intestine. Since the distance between thenutrient solution outlet 5 closest to the front end of thetube body 2 and the rear end surface of the connectingtube 3 is 2.5 cm to 3 cm, and the distance between the front end of theguide wire 4 and the rear end surface of the connectingtube 3 is 1 cm to 1.5 cm, theguide wire 4 will not pass from the Thenutrient solution outlet 5 penetrates out to damage the intestinal wall, thereby increasing the safety; the small intestine feeding tube provided by the utility model obviously increases the success rate of blind placement of the small intestine feeding tube and reduces complications.

实施例2：Example 2:

本实施例与实施例1的区别在于，将第一标识6和第二标识7直接替换成刻度条8，当导丝4前端与连接管3后端面齐平时，管体2末端与刻度条8的“0”刻度对齐。这样可以更方便的调整导丝4撤出的量。本实施例是在实施例1的基础上更为优选的实施方式。The difference between this embodiment and Embodiment 1 is that thefirst mark 6 and thesecond mark 7 are directly replaced with ascale bar 8. When the front end of theguide wire 4 is flush with the rear end surface of the connectingtube 3, the end of thetube body 2 is aligned with thescale bar 8. The "0" tick is aligned. In this way, the withdrawal amount of theguide wire 4 can be adjusted more conveniently. This embodiment is a more preferred embodiment on the basis of Embodiment 1.

Claims (9)

Translated fromChinese

1.一种医用经鼻小肠喂养管，包括矫直头、管体、连接所述矫直头和管体的连接管、插入所述管体内的导丝，其特征在于，所述管体上开多个营养液出口，离管体前端最近的一个营养液出口与连接管后端面的距离为2.5cm～3cm。1. a medical feeding tube through the nose and small intestine, comprising a straightening head, a tube body, a connecting pipe connecting the straightening head and the tube body, a guide wire inserted in the tube body, and characterized in that, on the tube body A plurality of nutrient solution outlets are opened, and the distance between the nutrient solution outlet closest to the front end of the tube body and the rear end surface of the connecting tube is 2.5 cm to 3 cm.2.根据权利要求1所述的一种医用经鼻小肠喂养管，其特征在于，所述导丝上还具有用于标记导丝前端与连接管后端面齐平的第一标识和用于标记导丝前端与连接管后端面相距预定距离的第二标识。2. A medical transnasal small intestine feeding tube according to claim 1, characterized in that, the guide wire also has a first mark for marking the front end of the guide wire and the rear end surface of the connecting pipe to be flush and for marking The second mark that the front end of the guide wire and the rear end surface of the connecting tube are separated by a predetermined distance.3.根据权利要求2所述的一种医用经鼻小肠喂养管，其特征在于，当导丝前端与连接管后端面齐平时，第一标识与管体末端齐平；当导丝前端与连接管后端面相距预定距离时，所述第二标识与管体末端齐平。3. A medical transnasal small intestine feeding tube according to claim 2, wherein when the front end of the guide wire is flush with the rear end surface of the connecting tube, the first sign is flush with the end of the tube body; When the rear end surface of the pipe is at a predetermined distance, the second mark is flush with the end of the pipe body.4.根据权利要求2或3所述的一种医用经鼻小肠喂养管，其特征在于，所述预定距离为1cm~1.5cm。4 . The medical transnasal small intestine feeding tube according to claim 2 or 3 , wherein the predetermined distance is 1 cm˜1.5 cm. 5 .5.根据权利要求1所述的一种医用经鼻小肠喂养管，其特征在于，所述导丝末端具有刻度条。5 . The medical transnasal small intestine feeding tube according to claim 1 , wherein the end of the guide wire has a scale bar. 6 .6.根据权利要求5所述的一种医用经鼻小肠喂养管，其特征在于，当导丝前端与连接管后端面齐平时，管体末端与刻度条的“0”刻度对齐。6 . The medical transnasal small intestine feeding tube according to claim 5 , wherein when the front end of the guide wire is flush with the rear end of the connecting tube, the end of the tube body is aligned with the “0” scale of the scale bar. 7 .7.根据权利要求1所述的一种医用经鼻小肠喂养管，其特征在于，所述矫直头的前端为一球体、后端为一圆柱状壳体，圆柱状壳体的侧面开有贯通侧面的第一通孔，圆柱状壳体的前端开有第二通孔，圆柱状壳体的后端套接在连接管上且与连接管相连通，圆柱状壳体的前端还一体成型有U形架，U形架通过连接杆与球体相连。7. A medical transnasal small intestine feeding tube according to claim 1, wherein the front end of the straightening head is a sphere, the rear end is a cylindrical shell, and the side of the cylindrical shell is provided with Through the first through hole on the side, the front end of the cylindrical shell is provided with a second through hole, the rear end of the cylindrical shell is sleeved on the connecting pipe and communicated with the connecting pipe, and the front end of the cylindrical shell is also integrally formed There are U-shaped frames, which are connected to the sphere through connecting rods.8.根据权利要求1所述的一种医用经鼻小肠喂养管，其特征在于，所述管体外壁具有刻度。8 . The medical transnasal small intestine feeding tube according to claim 1 , wherein the outer wall of the tube has scales. 9 .9.根据权利要求1所述的一种医用经鼻小肠喂养管，其特征在于，所述管体的管壁上具有不透X光的细线。9 . The medical transnasal small intestine feeding tube according to claim 1 , wherein the tube wall of the tube body has a thin line that is opaque to X-rays. 10 .

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