CN211584837U - Self-controlled water sac catheter for preventing esophageal stenosis - Google Patents

Abstract

The utility model relates to a be used for preventing constrictive automatic control type water pocket pipe of esophagus, including the guide tube, two-chamber pipe, the water pocket, the connector, seal wire guide tube and water injection pipe, two-chamber pipe is inside to be equipped with water injection passageway and seal wire passageway, the distal end of two-chamber pipe is connected with the guide tube and the seal wire passageway of two-chamber pipe and the chamber way intercommunication of guide tube, the near-end and the connector of two-chamber pipe are connected, seal wire guide tube and water injection pipe are connected with the connector respectively, the seal wire guide tube communicates with two-chamber pipe's seal wire passageway, the water injection pipe communicates with two-chamber pipe's water injection passageway, be equipped with the automatic control valve on the water injection pipe, the outside of two-chamber. The utility model discloses a prevention narrow and other reasons of esophagus ESD postoperative lead to the narrow back restenosis after expanding, invented a self-control type water pocket pipe for preventing the narrow esophagus, can realize effectively avoiding the damage to the support expansion effect that pathological change esophagus position lasts, and can realize patient's automatic control.

Description

Translated fromChinese

用于预防食管狭窄的自控型水囊导管Self-Control Water Balloon Catheter for Prevention of Esophageal Stenosis

技术领域technical field

本实用新型属于医疗器械的技术领域，特别是涉及一种用于预防食管狭窄的自控型水囊导管。The utility model belongs to the technical field of medical devices, in particular to a self-controlling water bladder catheter for preventing esophageal stenosis.

背景技术Background technique

食管狭窄临床十分常见，传统的原因有炎症、外伤、化学性烧伤以及吻合口狭窄等。近十余年，随着内镜黏膜下剥离术(Endoscopic submucosal dissection,ESD)的快速发展和临床应用，食管ESD术后的狭窄愈来愈多，已经成为食管狭窄的最主要原因。ESD术在病变切除后，特别是病变范围占食管管腔1/2周以上时，由于创面愈合过程中不可避免的会发生瘢痕化改变，导致手术区域发生收缩，管腔缩小，术后狭窄的发生率很高，可达80％以上。Esophageal stenosis is very common clinically, and the traditional causes include inflammation, trauma, chemical burns, and anastomotic stenosis. In the past ten years, with the rapid development and clinical application of endoscopic submucosal dissection (ESD), esophageal stenosis after ESD has become more and more frequent, which has become the main cause of esophageal stenosis. After ESD resection, especially when the lesion occupies more than 1/2 week of the esophageal lumen, scarring will inevitably occur during the wound healing process, resulting in shrinkage of the surgical area, narrowing of the lumen, and postoperative narrowing of the esophagus. The incidence is very high, reaching more than 80%.

目前，对于食管狭窄，可以采用内镜下扩张、切开或支架治疗，但需反复多次进行，且会有出血穿孔等各种并发症出现。而且，虽经反复多次扩张、切开或支架治疗，仍有部分病人狭窄无法缓解，成为难治性食管狭窄，严重影响了患者的生活质量。At present, endoscopic dilation, incision or stenting can be used for esophageal stricture, but it needs to be repeated many times, and there will be various complications such as bleeding and perforation. Moreover, despite repeated dilation, incision or stent treatment, there are still some patients with stenosis that cannot be relieved and become refractory esophageal stenosis, which seriously affects the quality of life of patients.

发明内容SUMMARY OF THE INVENTION

本实用新型所要解决的技术问题是提供一种用于预防食管狭窄的自控型水囊导管，能够实现对病变食道部位持续的支撑扩张作用，有效避免损伤，且能够实现患者自控。The technical problem to be solved by the utility model is to provide a self-controlled water balloon catheter for preventing esophageal stenosis, which can realize continuous support and expansion of the diseased esophagus, effectively avoid damage, and can realize patient self-control.

本实用新型解决其技术问题所采用的技术方案是提供一种用于预防食管狭窄的自控型水囊导管，包括导引管、双腔导管、水囊、连接头、导丝引管和注水管，所述双腔导管内部设有注水通道和导丝通道，所述双腔导管的远端与导引管连接且双腔导管的导丝通道与导引管的腔道连通，所述双腔导管的近端与连接头连接，所述导丝引管和注水管分别与连接头连接，所述导丝引管与双腔导管的导丝通道连通，所述注水管与双腔导管的注水通道连通，所述注水管上设有自控阀，所述双腔导管的外侧设有水囊且注水通道与水囊连通。The technical solution adopted by the utility model to solve the technical problem is to provide a self-controlling water bladder catheter for preventing esophageal stenosis, which includes a guide tube, a double-lumen catheter, a water bladder, a connector, a guide wire guide tube and a water injection tube , a water injection channel and a guide wire channel are arranged inside the double lumen catheter, the distal end of the double lumen catheter is connected with the guide tube, and the guide wire channel of the double lumen catheter is connected with the lumen of the guide tube, and the double lumen catheter is connected with the guide tube. The proximal end of the catheter is connected with the connecting head, the guide wire guide tube and the water injection pipe are respectively connected with the connecting head, the guide wire guide tube is communicated with the guide wire channel of the double lumen catheter, and the water injection pipe is connected with the water injection pipe of the double lumen catheter. The water injection pipe is provided with an automatic control valve, the outer side of the double-lumen conduit is provided with a water bladder, and the water injection channel is communicated with the water bladder.

所述导丝引管的近端设有带管塞的接头。The proximal end of the guide wire guide tube is provided with a connector with a tube plug.

所述注水管的近端设有注水端头。The proximal end of the water injection pipe is provided with a water injection end.

所述水囊充盈状态整体呈端部倒角的圆柱状。The filled state of the water bladder is in the shape of a cylinder with chamfered ends as a whole.

所述导引管和双腔导管为一体结构。The guide tube and the double-lumen catheter are integral structures.

所述导引管和双腔导管的外壁上设有连续的长度刻度，所述长度刻度的起点位于导引管的头端。Continuous length scales are provided on the outer walls of the guide tube and the double-lumen catheter, and the starting point of the length scale is located at the head end of the guide tube.

所述导丝引管、注水管和双腔导管通过连接头连接的整体呈Y型。The guide wire guide tube, the water injection tube and the double-lumen catheter are connected by the connector and are in a Y-shape as a whole.

有益效果beneficial effect

本实用新型通过将水囊置入病变部位的食道内，通过向水囊充水即可实现对病变食道部位施加一定的压力作用，达到持续的支撑扩张作用，能够有效地避免损伤。另外，患者能够自行完成向导管内充水或者抽水操作，能够自由地根据需要对水囊的张缩进行控制，提高了患者进食的便利性。By placing the water bag in the esophagus of the diseased part, the utility model can exert a certain pressure on the diseased esophagus by filling the water bag with water, achieve continuous support and expansion, and can effectively avoid damage. In addition, the patient can complete the operation of filling or pumping water into the catheter by himself, and can freely control the expansion and contraction of the water bladder as required, which improves the convenience for the patient to eat.

附图说明Description of drawings

图1为本实用新型的结构示意图。Figure 1 is a schematic structural diagram of the utility model.

具体实施方式Detailed ways

下面结合具体实施例，进一步阐述本实用新型。应理解，这些实施例仅用于说明本实用新型而不用于限制本实用新型的范围。此外应理解，在阅读了本实用新型讲授的内容之后，本领域技术人员可以对本实用新型作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。The present utility model will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

如图1所示的一种用于预防食管狭窄的自控型水囊导管，包括导引管1、双腔导管2、水囊3、连接头4、导丝引管5和注水管6。As shown in FIG. 1 , a self-controlled water balloon catheter for preventing esophageal stenosis includes aguide tube 1 , a double-lumen catheter 2 , awater balloon 3 , aconnector 4 , a guidewire guide tube 5 and a water injection tube 6 .

双腔导管2长度600mm，内部设有注水通道和导丝通道。双腔导管2的远端与导引管1连接，且双腔导管2的导丝通道与导引管1的腔道连通，导引管1的长度为150mm。导引管1和双腔导管2为一体结构，直径为9Fr，导引管1和双腔导管2的外壁上设有连续的长度刻度，长度刻度的零刻度起点位于导引管1的头端。The double-lumen catheter 2 has a length of 600mm and is provided with a water injection channel and a guide wire channel inside. The distal end of the double-lumen catheter 2 is connected to theguide tube 1, and the guide wire channel of the double-lumen catheter 2 communicates with the lumen of theguide tube 1, and the length of theguide tube 1 is 150 mm. The guidingtube 1 and the double-lumen catheter 2 are integrated in structure, with a diameter of 9Fr. There are continuous length scales on the outer walls of the guidingtube 1 and the double-lumen catheter 2. The zero-scale starting point of the length scale is located at the head end of the guidingtube 1. .

双腔导管2的近端与连接头4连接，导丝引管5和注水管6分别与连接头4连接，且整体呈Y型。导丝引管5的腔道与双腔导管2的导丝通道连通，导丝引管5的近端设有带管塞的接头8。注水管6的腔道与双腔导管2的注水通道连通，注水管6上设有自控阀7，注水管6的近端设有注水端头9。The proximal end of thedouble lumen catheter 2 is connected to theconnector 4 , the guidewire guide tube 5 and the water injection tube 6 are respectively connected to theconnector 4 , and the whole is Y-shaped. The lumen of the guidewire guide tube 5 is communicated with the guide wire channel of thedouble lumen catheter 2, and the proximal end of the guidewire guide tube 5 is provided with ajoint 8 with a tube plug. The lumen of the water injection pipe 6 is communicated with the water injection channel of the double-lumen conduit 2 . The water injection pipe 6 is provided with anautomatic control valve 7 and the proximal end of the water injection pipe 6 is provided with awater injection end 9 .

双腔导管2的外侧设有水囊3且注水通道与水囊3连通，水囊3充盈状态整体呈端部倒角的圆柱状，长度为200mm，直径为20mm。The outer side of the double-lumen catheter 2 is provided with awater bladder 3 and the water injection channel communicates with thewater bladder 3. The filled state of thewater bladder 3 is a cylindrical shape with chamfered ends, a length of 200 mm, and a diameter of 20 mm.

在ESD术后或狭窄扩张术后，内镜下经患者鼻腔先置放引导导丝于胃腔，该导管经导丝引导，经鼻进入食道，内镜直视下至患者ESD术后创面或狭窄切开创面后定位，使用注射器经注水端头9注入一定量的无菌水，待水囊3充盈后起到支撑作用。导管放置后，患者平时可在体外使用注射器经注水孔注入和抽取一定量的无菌水即可实现球囊的扩张和回缩，操作简便。一般病人进食前可自行抽水，使水囊3回缩，保证进食食物顺利通过，进食后再经注水端头9注入一定量的无菌水，使水囊3充盈起到持续支撑作用。该水囊3注水量可控，可根据患者不同情况，调整注水量。通过持续固定直径的水囊3充盈支撑作用，即可防止术后ESD创面或狭窄切开创面的疤痕挛缩，导致狭窄。After ESD or stenosis dilatation, a guide wire is first placed in the gastric cavity through the patient's nasal cavity under the endoscope. The catheter is guided by the guide wire and enters the esophagus through the nose, and is directly viewed under the endoscope to the patient's wound or wound after ESD. After the narrow incision is positioned, a certain amount of sterile water is injected through thewater injection end 9 using a syringe, and thewater bladder 3 is filled to play a supporting role. After the catheter is placed, the patient can usually use a syringe outside the body to inject and extract a certain amount of sterile water through the water injection hole to realize the expansion and retraction of the balloon, which is easy to operate. Generally, patients can draw water by themselves before eating, so that thewater bladder 3 can be retracted to ensure the smooth passage of the food. The water injection volume of thewater bladder 3 is controllable, and the water injection volume can be adjusted according to different conditions of patients. By continuously filling and supporting thewater bladder 3 with a fixed diameter, the scar contracture of the postoperative ESD wound or stenotic incision can be prevented, resulting in stenosis.

导管和水囊均采用聚氨酯材料制成，导管整体具有一定的柔软度和弹性，同时直径较小，可减轻患者长时间留置导管的不适，水囊3的弹性和回缩性好，柔顺度高，在水囊3回缩时不会阻碍食物顺利通过；耐用度高，可防止一般食物及消化液对水囊的损坏。Both the catheter and the water bladder are made of polyurethane material. The catheter as a whole has a certain degree of softness and elasticity, and at the same time, the diameter is small, which can reduce the discomfort of the patient indwelling the catheter for a long time. Thewater bladder 3 has good elasticity and retraction, and high flexibility , when thewater bladder 3 retracts, it will not hinder the smooth passage of food; it has high durability and can prevent damage to the water bladder caused by general food and digestive juices.

Claims (7)

Translated fromChinese

1.一种用于预防食管狭窄的自控型水囊导管，包括导引管(1)、双腔导管(2)、水囊(3)、连接头(4)、导丝引管(5)和注水管(6)，其特征在于：所述双腔导管(2)内部设有注水通道和导丝通道，所述双腔导管(2)的远端与导引管(1)连接且双腔导管(2)的导丝通道与导引管(1)的腔道连通，所述双腔导管(2)的近端与连接头(4)连接，所述导丝引管(5)和注水管(6)分别与连接头(4)连接，所述导丝引管(5)与双腔导管(2)的导丝通道连通，所述注水管(6)与双腔导管(2)的注水通道连通，所述注水管(6)上设有自控阀(7)，所述双腔导管(2)的外侧设有水囊(3)且注水通道与水囊(3)连通。1. A self-controlled water balloon catheter for preventing esophageal stenosis, comprising a guide tube (1), a double-lumen catheter (2), a water balloon (3), a connector (4), and a guide wire guide tube (5) and a water injection pipe (6), characterized in that: a water injection channel and a guide wire channel are provided inside the double-lumen catheter (2), and the distal end of the double-lumen catheter (2) is connected to the guide pipe (1) and has a double lumen. The guide wire channel of the lumen catheter (2) is communicated with the lumen of the guide tube (1), the proximal end of the double lumen catheter (2) is connected with the connector (4), and the guide wire guide tube (5) and The water injection pipes (6) are respectively connected with the connecting heads (4), the guide wire guide pipe (5) is communicated with the guide wire channel of the double lumen catheter (2), and the water injection pipe (6) is connected with the double lumen catheter (2) The water injection channel is connected with the water injection channel, the water injection pipe (6) is provided with an automatic control valve (7), the outer side of the double-lumen conduit (2) is provided with a water bladder (3), and the water injection channel is communicated with the water bladder (3).2.根据权利要求1所述的一种用于预防食管狭窄的自控型水囊导管，其特征在于：所述导丝引管(5)的近端设有带管塞的接头(8)。2 . The self-controlling water balloon catheter for preventing esophageal stenosis according to claim 1 , wherein the proximal end of the guide wire guide tube ( 5 ) is provided with a joint ( 8 ) with a tube plug. 3 .3.根据权利要求1所述的一种用于预防食管狭窄的自控型水囊导管，其特征在于：所述注水管(6)的近端设有注水端头(9)。3. The self-controlling water bladder catheter for preventing esophageal stenosis according to claim 1, characterized in that: the proximal end of the water injection pipe (6) is provided with a water injection end (9).4.根据权利要求1所述的一种用于预防食管狭窄的自控型水囊导管，其特征在于：所述水囊(3)充盈状态整体呈端部倒角的圆柱状。4 . The self-controlling water bladder catheter for preventing esophageal stenosis according to claim 1 , wherein the water bladder ( 3 ) is in the shape of a cylinder with chamfered ends as a whole when it is filled. 5 .5.根据权利要求1所述的一种用于预防食管狭窄的自控型水囊导管，其特征在于：所述导引管(1)和双腔导管(2)为一体结构。5 . The self-controlling water balloon catheter for preventing esophageal stenosis according to claim 1 , wherein the guiding tube ( 1 ) and the double-lumen catheter ( 2 ) are integrated in structure. 6 .6.根据权利要求1所述的一种用于预防食管狭窄的自控型水囊导管，其特征在于：所述导引管(1)和双腔导管(2)的外壁上设有连续的长度刻度，所述长度刻度的起点位于导引管(1)的头端。6. A self-controlling water bladder catheter for preventing esophageal stenosis according to claim 1, characterized in that: the outer walls of the guide tube (1) and the double-lumen catheter (2) are provided with a continuous length The starting point of the length scale is located at the head end of the guide tube (1).7.根据权利要求1所述的一种用于预防食管狭窄的自控型水囊导管，其特征在于：所述导丝引管(5)、注水管(6)和双腔导管(2)通过连接头(4)连接的整体呈Y型。7. A self-controlled water balloon catheter for preventing esophageal stenosis according to claim 1, characterized in that: the guide wire guide tube (5), the water injection tube (6) and the double-lumen catheter (2) pass through The whole connected by the connecting head (4) is Y-shaped.

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