CN111420243A - A Novel Esophageal Dilation Balloon Catheter - Google Patents

Abstract

The invention relates to a novel esophageal dilatation balloon catheter which comprises an upper esophageal dilatation balloon, a lower anti-reflux balloon and a central nasogastric tube, wherein the upper esophageal dilatation balloon, the lower anti-reflux balloon and the central nasogastric tube are filled with water (gas) into the upper esophageal dilatation balloon to dilate a narrow section of esophagus. Gastroesophageal reflux is prevented by injecting water (gas injection) into the lower anti-reflux balloon. Nasal feeding may be performed through the central nasogastric tube with or without balloon expansion. The design is used for patients after esophageal anastomosis or with esophageal stenosis to perform intermittent dilatation on the narrow section of esophagus or the esophageal anastomosis opening. The water (gas) in the esophageal dilatation balloon is pumped back in the dilatation gap, so that the ischemic necrosis caused by too long esophageal mucosa compression time is avoided. After eating, the lower end anti-reflux saccule is expanded, and the leakage or the stenosis of the anastomotic stoma caused by the reflux of the gastric contents is avoided. The design reduces the times of gastroscopy and radiography of patients through the intermittent expansion of the esophageal dilatation balloon.

Description

A Novel Esophageal Dilation Balloon Catheter

technical field

The invention relates to a novel esophagus expansion balloon catheter, in particular to a design and use method of a novel novel expansion balloon, and belongs to the technical field of medical biological materials.

Background technique

Esophageal atresia is a common congenital malformation of the digestive tract, with an incidence of approximately 1/3000-4000 live births. With the advancement of surgical techniques, perioperative intensive care techniques, pediatric endoscopic techniques, and perioperative nutritional support, the survival rate of children has improved significantly. However, postoperative complications such as anastomotic stenosis, anastomotic leakage, and gastroesophageal reflux still affect the quality of life of children. Among them, anastomotic stenosis is a relatively common complication, and it has been reported in the literature that its incidence is as high as 18%-50%. In addition, esophageal stenosis caused by various reasons, including congenital stenosis, and acquired esophagitis such as erosive esophagitis, postoperative anastomotic stenosis, etc., require repeated expansion of the stenosis.

There are two main ways of expansion: rigid probe and soft balloon. Rigid probes play a role in dilation by moderately tearing the esophageal muscle layer under gastroscopy. However, studies have shown that the force generated by the rigid probe when expanding the esophagus is only the longitudinal axial shear force, which may cause damage or even perforation of the esophageal intima. The force generated when the balloon is inflated is a ring-shaped radial expansion force, which greatly reduces the possibility of esophagus injury caused by excessive force concentration. The balloon dilatation catheter is made of nylon material with good plasticity, which has good bending performance and can effectively reduce the damage to the lumen when passing through. The capsule has good permeability, and can clearly observe the expansion, tearing, and bleeding, and the safety is good. However, no matter which expansion method is used, it needs to be completed under endoscopy or X-ray angiography, and the treatment procedures are cumbersome, which increases the radiation exposure of medical workers and patients. Partial or multiple expansions lead to multiple hospitalizations and increased treatment costs. Therefore, a new solution is urgently needed to solve the above-mentioned technical problems.

SUMMARY OF THE INVENTION

The present invention is aimed at the problems existing in the prior art, and provides a novel esophagus dilation balloon catheter. The technical scheme realizes multiple intermittent expansion of the narrow esophagus through a special three-lumen two-balloon catheter, avoiding multiple endoscopic procedures. or imaging operations. At the same time, the gastroesophageal reflux after eating is reduced by the intragastric anti-reflux balloon, which leads to esophageal restenosis.

In order to achieve the above purpose, the technical scheme of the present invention is as follows, a novel esophageal dilation balloon catheter, comprising an esophageal dilation balloon at the upper end, an anti-reflux balloon at the lower end, a central nasogastric feeding tube, a guide wire in the central catheter and a tail end band Valve water injection interface, the esophagus dilation balloon is located at the upper end of the new type of expansion balloon, and is placed at the esophagus stenosis in the esophagus, the anti-reflux balloon is located at the lower end of the new type of expansion balloon, and is placed at the gastric cardia, the center The nasogastric feeding tube is located in the center of the new esophageal dilation balloon, which is hollow and can be used for gastrointestinal decompression or nasogastric feeding. The water injection port with valve at the tail end is located at the tail end of the new esophageal dilation balloon catheter, and the dilation pressure of the esophagus dilation balloon and the anti-reflux balloon is adjusted respectively by controlling the water injection volume. The central nasogastric tube can be used for liquid diet nasogastric feeding to achieve early enteral nutrition. When the esophageal dilation catheter is not inflated, the main pipe body extends smoothly from the three-lumen tube at the end without obvious bulge, which reduces the difficulty of intubation and reduces the pharyngeal reaction during intubation. The main pipeline is a high elastic pipeline, the esophagus dilatation bag and the anti-reflux sac are both compressed water (air) sacs, which are filled with water (air), the esophagus dilatation sac is inflated into an olive shape, and the anti-reflux sac is inflated into a mushroom head shape. . After pumping water (air), the balloon is compressed again under the elastic restoring force of the highly elastic main body, reducing the risk of iatrogenic rebleeding during extubation.

As an improvement of the present invention, the novel esophageal dilation balloon catheter is a special three-cavity two-balloon catheter, the esophagus dilation balloon is an olive-shaped or balloon-columnar balloon, and the anti-reflux balloon is a mushroom head-shaped balloon The sac, which is designed as a mushroom head shape, is commonly used in clinics to prevent the duct from falling off.

As an improvement of the present invention, the water injection port with valve at the tail end includes an esophagus dilatation balloon water injection pipe and an anti-reflux balloon water injection pipe, and the esophagus dilation balloon water injection pipe and the anti-reflux balloon water injection pipe are respectively connected with the esophagus dilation balloon. , The anti-reflux balloon is connected.

As an improvement of the present invention, a threaded anti-reflux valve is provided at the end of the esophagus dilatation bag water injection pipe and the anti-reflux bag water injection pipe, and an indicator balloon is provided between the anti-reflux valve and the water injection pipe. The quality of the balloon used for the indicator balloon is harder than that of the esophagus dilation balloon and the anti-reflux balloon. Whether the esophagus dilatation balloon or the anti-reflux balloon is in a water-filled state or ruptured and leaked can be judged by the hardness of the indicator balloon.

As an improvement of the present invention, the threaded anti-reflux valve is a one-way valve, including a water injection funnel, a sealing plug, a support rod, a spring, a sealing ring, a baffle and a threaded interface at the end. The diameter of the top of the water injection funnel is It is larger than the syringe nipple, the diameter of the bottom is smaller than that of the syringe nipple, the bottom of the funnel has a hole, the sealing plug and the support rod are integrally formed, the support rod is slidably inserted on the baffle, and the spring is located in the Between the sealing plug and the baffle, the inner diameter of the sealing ring is smaller than the diameter of the sealing plug, the sealing ring is fixed on the inner side wall of the tail end of the anti-reflux valve, and the supporting baffle has holes It is fixed on the inner wall of the anti-reflux valve. The one-way valve enables medical staff or patients to free their hands after water (gas) injection, avoiding the application of hemostatic forceps to clamp the water injection port. Traditional hemostatic clamps can cause damage to the tubing or loosen the hemostat leading to balloon collapse. The end of the anti-reflux valve is provided with a thread, which can be stably connected with a pressure measuring pump with a thread design to detect the pressure in the expansion balloon.

As an improvement of the present invention, the upper and lower ends of the esophagus dilation balloon and the anti-reflux balloon are provided with metal markers (16), which can be visualized under X-rays and facilitate positioning.

As an improvement of the present invention, the surface of the dilation balloon catheter is marked with a length scale, which facilitates accurate control of the depth of catheter placement during catheter placement.

As an improvement of the present invention, the catheter of the central nasogastric feeding tube has a hollow structure and has a certain strength, and the inner diameter is not significantly reduced due to the extrusion of water injection of the balloon. Its inner diameter is larger than the diameter of the guide wire. When placing the catheter, the guide wire plays a guiding and supporting role, which is convenient for the catheter placement operation. The end of the nasogastric feeding tube has a threaded interface, which can be used for gastrointestinal decompression by connecting a heparin cap to close the nasogastric feeding tube or connecting a decompression bag.

As an improvement of the present invention, the esophageal dilation balloon can be respectively located in the upper, middle and lower segments of the esophagus to expand the stenosis in different parts, and the distance between the esophageal dilation balloon and the anti-reflux balloon is 2cm-30cm, and 2cm is an interval . The length of the expansion bag is 4cm-8cm, and 2cm is an interval. The diameter of the expansion balloon is 6mm-20mm, and 2mm is an interval. Diameter length serialization. The diameter of the anti-reflux balloon is 2-6 cm, 1 cm is an interval, and the length is 1-2 cm, and 1 cm is an interval. Diameter length serialization. The diameter of the outer tube of the new esophageal dilation balloon catheter is less than 4mm without water injection. The main pipe is a high elastic silicone or rubber tube, and the balloon is a high polymer such as polyurethane and silicone, indicating that the balloon is a PVC material with less compliance than the expansion and anti-reflux balloon. The pressure indicating bag here is a simple PVC plastic balloon, and it can be judged by its filling degree whether the expansion balloon or anti-reflux balloon is in a water-filled state or the balloon is damaged. The operation is simple and the cost is low. The water injection end is connected to the pressure measuring pump for measurement.

Compared with the prior art, the present invention has the following advantages: 1) the technical solution provides an esophageal dilation balloon catheter, which has the effect of repeated intermittent expansion after one-time catheter placement; 2) the design of the anti-reflux balloon in this technical solution can Reduce the risk of esophageal restenosis caused by gastroesophageal reflux in the early postoperative period; 3) The central nasogastric feeding tube can be used for nutrient solution nasogastric feeding or gastrointestinal decompression operation; when used, there is a guide wire in the nasogastric feeding tube, thereby increasing the number of catheters 4) The design reduces the number of gastroscopy and angiography examinations for such patients through the intermittent expansion of the esophageal dilation balloon; the expansion of the anti-reflux balloon at the lower end prevents the gastroesophagus after eating Reflux esophagitis and esophageal restenosis caused by reflux; central nasogastric feeding tube can be used for liquid diet nasogastric feeding to achieve early enteral nutrition. The design of the central nasogastric feeding tube can realize enteral nutrition in the early postoperative period, and the application of the anti-reflux bag can realize the effect of emptying the esophagus in the early postoperative period, thus avoiding the effect of gastroesophageal reflux on the healing of the anastomosis and at the same time as soon as possible. Restoring enteral nutrition improves and maintains the integrity of the intestinal mucosal cell structure and function, maintains the intestinal mucosal barrier, and reduces the translocation of intestinal bacteria and the occurrence of intestinal infection. In addition, connecting a negative pressure bag to the end of the central nasogastric feeding tube during flatulence can play a role in gastrointestinal pressure, so as to improve the blood circulation of the gastrointestinal wall and promote the recovery of digestive tract function.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Figure 2 is a schematic diagram of the one-way valve in the present invention;

In the figure: 1 new esophageal dilation balloon catheter, 2 anti-reflux valve, 3 indicating balloon, 11 esophagus dilation balloon, 12 anti-reflux balloon, 13 central nasogastric feeding catheter, 14 guide wire, 151 and 152 are water injection ports, 16 metal signs, 2 anti-reflux valves, 21 water injection funnels, 22 sealing plugs, 23 supporting rods, 24 springs, 25 sealing rings, 26 baffles, 27 threaded ports.

Detailed ways:

In order to deepen the understanding of the present invention, the present embodiment will be described in detail below with reference to the accompanying drawings.

Embodiment 1: Referring to FIG. 1, a new type of esophageal dilation balloon catheter includes an esophageal dilation balloon 11 at the upper end, an anti-reflux balloon 12 at the lower end, a central nasogastric feeding tube 13, a guide wire 14 in the central catheter and a tail band. Valve water injection port 15, the esophageal dilation balloon 11 is located at the upper end of the new type of expansion balloon, and is placed at the esophagus stenosis in the esophagus, and the anti-reflux balloon 12 is located at the lower end of the new type of expansion balloon, and is placed at the gastric cardia, The central nasogastric feeding tube 13 is located in the center of the novel esophageal dilation balloon 1, is hollow, and can be used for gastrointestinal decompression or nasogastric feeding. The water injection port 15 with a valve at the tail end is located at the tail end of the novel esophageal dilation balloon catheter 1, and the dilation pressure of the esophagus dilation balloon 11 and the anti-reflux balloon 12 is adjusted respectively by controlling the water injection volume. The central nasogastric tube can be used for liquid diet nasogastric feeding to achieve early enteral nutrition. When the esophageal dilation catheter is not inflated, the main pipe body extends smoothly from the three-lumen tube at the end without obvious bulge, which reduces the difficulty of intubation and reduces the pharyngeal reaction during intubation. The main pipeline is a high elastic pipeline, the esophagus dilatation bag and the anti-reflux sac are both compressed water (air) sacs, which are filled with water (air), the esophagus dilatation sac is inflated into an olive shape, and the anti-reflux sac is inflated into a mushroom head shape. .

After pumping water (air), the balloon is compressed again under the elastic restoring force of the highly elastic main body, which reduces the risk of iatrogenic rebleeding during extubation. The esophageal dilation balloon 11 is an olive-shaped or balloon-columnar balloon, and the anti-reflux balloon 12 is a mushroom-shaped balloon. In normal use, the specific shape can also be adjusted appropriately, and the water injection port 15 with a valve at the tail includes: The esophagus dilatation bag water injection pipe 151 and the anti-reflux bag water injection pipe 152 are respectively connected with the esophagus dilation balloon 11 and the anti-reflux balloon 12. The esophagus dilatation bag water injection pipe 151 and the anti-reflux bag water injection pipe 152 are both provided with a threaded anti-reflux valve 2 at the end, and an indicator balloon 3 is provided between the anti-reflux valve and the water injection pipe. The quality of the balloon used in the indicator balloon 3 is harder than that of the esophagus dilation balloon 11 and the anti-reflux balloon 12. It can be judged by the hardness of the indicator balloon whether the esophagus dilatation balloon 11 and the anti-reflux balloon 12 are in a water-filled state or ruptured and leaked. , the threaded anti-reflux valve 2 is a one-way valve, including a water injection funnel 21, a sealing plug 22, a support rod 23, a spring 24, a sealing ring 25, a baffle 26 and a threaded interface 27 at the end. The water injection funnel 21 The diameter of the top is larger than that of the syringe nipple, the diameter of the bottom is smaller than that of the syringe nipple, and the bottom of the funnel has holes. The sealing plug 22 and the support rod 23 are integrally formed. The spring 24 is located between the sealing plug 22 and the baffle 26 , the inner diameter of the sealing ring 25 is smaller than the diameter of the sealing plug 22 , and the sealing ring 25 is fixed at the end of the anti-reflux valve by On the inner side wall, the support baffle 26 is fixed on the inner side wall of the anti-reflux valve with holes, and there are metal markers 16 on the upper and lower ends of the esophageal dilation balloon 11 and the anti-reflux balloon 12. , can be visualized under X-ray, which is convenient for positioning, the surface of the balloon catheter is marked with a length scale, which is convenient to accurately control the depth of the catheter during the catheter placement process, and the catheter of the central nasogastric feeding tube 13 is a hollow structure and has a certain strength. , and no significant decrease in inner diameter occurs due to balloon water injection and extrusion. Its inner diameter is larger than the diameter 14 of the guide wire. When placing the catheter, the guide wire plays a guiding and supporting role, which is convenient for the catheter placement operation. The end of the nasogastric feeding tube has a threaded interface, which can be connected to a heparin cap to close the nasogastric feeding tube or connected to a decompression bag for gastrointestinal decompression. The esophageal dilation balloon 11 can be located in the upper, middle and lower sections of the esophagus to dilate the stenosis in different parts. The distance between the esophagus dilation bag 11 and the anti-reflux bag 12 is 2 cm-30 cm, and 2 cm is an interval. The length of the expansion bag is 4cm-8cm, and 2cm is an interval. The diameter of the expansion balloon is 6mm-20mm, and 2mm is an interval. The diameter and length are serialized; the diameter of the anti-reflux balloon 12 is 2-6 cm, and 1 cm is an interval, and the length is 1-2 cm, and 1 cm is an interval. Diameter length serialization. The diameter of the outer tube of the new esophageal dilatation balloon catheter 1 is less than 4mm without water injection. The main pipe is a high elastic silicone or rubber tube, and the balloon is a high polymer such as polyurethane and silicone, indicating that the balloon is a PVC material with less compliance than the expansion and anti-reflux balloon.

Application example and working process: a special three-lumen two-balloon catheter, as shown in Figure 1, includes an upper end esophagus dilation balloon 11, a lower end anti-reflux balloon 12, a central nasogastric feeding tube 13, and a central catheter guide wire 14 And the water injection port 15 with valve at the end. The esophagus dilation balloon 11 is located at the upper end of the new dilation balloon, and is placed at the esophageal stenosis in the esophagus. The anti-reflux balloon 12 is located at the lower end of the new dilation balloon and is placed at the gastric cardia. The central nasogastric feeding tube 13 is located in the center of the novel esophageal dilation balloon 1, is hollow, and can be used for gastrointestinal decompression or nasogastric feeding. The water injection port 15 with valve at the tail end is located at the tail end of the novel esophageal dilation balloon catheter (1), and the dilation pressure of the esophagus dilation balloon 11 and the anti-reflux balloon 12 is adjusted respectively by controlling the water injection volume.

Before the operation, medical workers will determine the location and extent of esophageal stenosis through gastrointestinal angiography, endoscopy or intraoperative measurement results, and select an appropriate size of esophageal dilatation balloon catheter (including balloon diameter, length, dilation balloon and anti-return balloon). sac spacing and other indicators). The esophageal dilation balloon is placed under the guidance of the guide wire 14 . Through X-ray inspection, the positional relationship of the two balloons is determined according to the metal marking 16 . In the early postoperative period, esophageal stenosis caused by scar hyperplasia can be prevented by intermittently injecting water into the dilatation bag for multiple times. During the expansion process, attention should be paid to the expansion time and balloon tension to avoid excessive compression leading to ischemia of the esophageal mucosa. The specific pressure is 0.5-3 atmospheres, the expansion time is 3-5 minutes, and the expansion is 3-5 times a day. After nasal feeding, the anti-reflux sac is injected with water, and the dilatation catheter is moderately stretched to make the anti-reflux sac close to the cardia to prevent early postoperative gastroesophageal reflux, which may stimulate the anastomotic stoma and cause anastomotic leakage or stenosis. The anti-reflux balloon was evacuated after gastric emptying to avoid balloon compression on the gastric fundus mucosa. The central nasogastric feeding tube 13 has a hollow structure with a certain strength, and the inner diameter will not be significantly reduced due to the extrusion of the water injection of the balloon. Its inner diameter is larger than the diameter 14 of the guide wire. The tail end has a threaded interface, which can be used for gastrointestinal decompression by connecting a heparin cap to close the nasogastric feeding tube or connecting a decompression bag.

According to FIG. 2, a one-way anti-reflux valve 2 is provided at the water injection ports 151 and 152, including a water injection funnel 21, a sealing plug 22, a support rod 23, a spring 24, a sealing ring 25, a baffle 26 and a threaded interface at the end 27. The diameter of the top of the water injection funnel 21 is larger than the diameter of the syringe nipple, the diameter of the bottom is smaller than the diameter of the syringe nipple, and the bottom of the funnel has pores. The sealing plug 22 and the support rod 23 are integrally formed, the support rod 23 is slidably inserted on the baffle 26 , and the spring 24 is located between the sealing plug 22 and the baffle 26 . The inner diameter of the sealing ring 25 is smaller than the diameter of the sealing plug 22, and the sealing ring 25 is fixed on the inner wall of the tail end of the anti-reflux valve. The support baffle 26 is fixed on the inner side wall of the anti-reflux valve with holes. During the operation, connect the syringe or the injection pump with pressure detection to the threaded interface of the anti-reflux valve, push the injection funnel through the nipple of the syringe or the pressure pump to move the sealing plug and the support rod complex down and make the one-way valve open for water injection or Pumping operation. After the operation, the syringe or pressure pump is pulled out, and the composite body rebounds under the action of the spring, so that the sealing plug and the sealing ring are tightly fitted to close the valve, which plays an anti-reflux effect.

As shown in FIG. 1, an indicator balloon 3 is provided at the lower end of the anti-reflux valve, which is characterized in that: the used balloon is harder than the esophagus dilation balloon 11 and the anti-reflux balloon 12, and the esophagus dilatation can be judged by the hardness of the indicator balloon. Whether the balloon 11 and the anti-reflux balloon 12 are in a water-filled state or ruptured and leaked.

It should be noted that the above-mentioned embodiments are not intended to limit the protection scope of the present invention, and equivalent transformations or substitutions made on the basis of the above-mentioned technical solutions all fall into the protection scope of the present invention.

Claims (9)

1. The utility model provides a novel esophagus expansion sacculus pipe, its characterized in that, including esophagus expansion sacculus (11), the anti-reflux sacculus (12) of lower extreme of upper end, central nasogastric tube (13), the interior seal wire (14) of central catheter and tail end tape valve water injection interface (15), esophagus expansion sacculus (11) are located the upper end of novel expansion sacculus, place in esophagus stenosis department in the esophagus, anti-reflux sacculus (12) are located novel expansion sacculus lower extreme, place in cardia department, central nasogastric tube (13) are located novel esophagus expansion sacculus (1) central part, cavity, tail end tape valve water injection interface (15) are located novel esophagus expansion sacculus pipe (1) tail end, carry out expansion pressure regulation to esophagus expansion sacculus (11), anti-reflux sacculus (12) respectively through control water injection volume.

2. The novel esophageal dilatation balloon catheter according to claim 1, wherein the novel esophageal dilatation balloon catheter (1) is a three-lumen two-balloon catheter, the esophageal dilatation balloon (11) is an olive-shaped or a balloon-column-shaped balloon, and the anti-reflux balloon (12) is a mushroom-head-shaped balloon.

3. The novel esophageal dilatation balloon catheter according to claim 1, wherein the tail end valved water injection port (15) comprises an esophageal dilatation balloon water injection pipe (151) and an anti-reflux balloon water injection pipe (152), and the esophageal dilatation balloon water injection pipe (151) and the anti-reflux balloon water injection pipe (152) are communicated with the esophageal dilatation balloon (11) and the anti-reflux balloon (12).

4. The novel esophagus dilating balloon catheter as claimed in claim 3, wherein the tail ends of the esophagus dilating balloon water injection pipe (151) and the anti-reflux balloon water injection pipe (152) are both provided with a threaded anti-reflux valve (2), and an indicating balloon (3) is arranged between the anti-reflux valve and the water injection pipe.

5. The novel esophageal dilatation balloon catheter as claimed in claim 4, wherein the threaded anti-reflux valve (2) is a one-way valve and comprises a water injection funnel (21), a sealing plug (22), a support rod (23), a spring (24), a sealing ring (25), a baffle (26) and a tail end threaded interface (27), the diameter of the top of the water injection funnel (21) is larger than that of a syringe nipple, the diameter of the bottom of the water injection funnel is smaller than that of the syringe nipple, the bottom of the funnel is provided with a hole, the sealing plug (22) and the support rod (23) are of an integrally formed structure, the support rod (23) is slidably inserted into the baffle (26), the spring (24) is positioned between the sealing plug (22) and the baffle (26), the inner diameter of the sealing ring (25) is smaller than that of the sealing plug (22), and the sealing ring (25) is fixed on the inner side wall of, the support baffle (26) is provided with a hole and fixed on the inner side wall of the injection-resisting backflow valve.

6. The novel esophageal dilatation balloon catheter according to claim 1, wherein the upper end and the lower end of the esophageal dilatation balloon (11) and the anti-reflux balloon (12) are both provided with metal markers (16) which can be visualized under X-rays.

7. The novel esophageal dilatation balloon catheter as claimed in claim 3 or 4, wherein the surface of the dilatation balloon catheter is provided with length scale marks to facilitate accurate control of the catheterization depth during the catheterization process.

8. The novel esophageal dilatation balloon catheter as claimed in claim 3 or 4, characterized in that the catheter of the central nasogastric tube (13) is a hollow structure with an inner diameter larger than the diameter (14) of the guide wire and a threaded port at the tail end, and gastrointestinal decompression can be performed by connecting a heparin cap to close the nasogastric tube or connecting a decompression balloon.

9. The novel esophageal dilatation balloon catheter as claimed in claim 3 or 4, wherein the esophageal dilatation balloon (11) can be respectively positioned at the upper, middle and lower segments of the esophagus to dilate the stenosis at different positions, the esophageal dilatation balloon (11) and the anti-reflux balloon (12) are spaced at 2cm-30cm, 2cm is an interval, the dilatation balloon is 4cm-8cm in length, 2cm is an interval, the dilatation balloon is 6mm-20mm in diameter, 2mm is an interval, the diameter length is serialized, the anti-reflux balloon (12) is 2-6cm in diameter, 1cm is an interval, the length is 1-2cm, 1cm is an interval, and the diameter length is serialized; the diameter of the outer pipe of the novel esophagus dilating saccule catheter (1) is less than 4mm under the state of not injecting water, the main pipeline is a high-elasticity silica gel or rubber pipe, the esophagus dilating saccule (11) and the anti-reflux saccule (12) are high polymers such as polyurethane or silica gel, and the indicating saccule is made of PVC material with smaller compliance than the dilating saccule and the anti-reflux saccule.

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