Esophageal stenosis balloon dilator

Abstract

The utility model discloses an esophageal stenosis balloon dilator which comprises a catheter, a bottom balloon and a double-sleeve balloon are fixed on the lower portion of the catheter, the double-sleeve balloon comprises an inner water balloon and an outer air balloon wrapped outside the inner water balloon, the bottom balloon is located at the bottom of the double-sleeve balloon and communicated with the outer air balloon, and the outer air balloon is detachably connected with an inflation device through an air pipe. The air pipe is attached to the outer side of the catheter, the inner water bag is detachably connected with the water filling device through a water pipe, the water pipe is attached to the inner wall of one side of the catheter, and an anti-skid piece is detachably clamped to the upper portion of the catheter. According to the balloon dilator for esophageal stenosis, the anti-slip sheet is arranged, so that the phenomenon that the double cuffs slide down accidentally before flushing and inflating can be prevented; by arranging the bottom bag, when the catheter is a guide wire tube, the anti-skidding and buffering effects can be achieved before the double sleeve bags are filled with water and air, and when the catheter is a nutrient canal, gastric juice backflow can be prevented; compared with a pure air bag, the double-sleeve bag has the advantages that not only is the pressure resistance at a narrow part enhanced, but also the expansion effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical technology, in particular to an esophageal stenosis balloon dilator. Background Art

[0002] Esophageal stenosis can cause symptoms such as dysphagia, nausea, vomiting, etc. Some patients may also experience sternal pain, a burning sensation, and a feeling of acid reflux. When a person with esophageal stenosis swallows food, due to the relatively narrow section when the food passes through the esophagus, dysphagia will occur; when eating liquid or semi-liquid food, the symptoms are not very obvious, but when eating harder food, obvious swallowing obstruction will occur, so timely treatment is required.

[0003] The existing treatment method is to use a balloon dilator to dilate the stenotic segment of the patient's esophagus, that is, under the guidance of a guide wire, place the balloon in the stenotic area and then inflate it to expand the stenotic area. Although the balloon dilator can play a role in dilating the esophageal stenotic segment, during the dilation operation, medical staff found that before inflation after the balloon is guided in place, the uninflated balloon sometimes slides slightly at the stenotic orifice, resulting in inaccurate positioning; secondly, the balloon has to bear a relatively large pressure in the stenotic area, so a general balloon will choose a relatively thick balloon wall. However, if the balloon wall is too thick, it cannot fit the middle catheter, and in addition, the balloon wall is thick and has a certain elasticity, which will affect the dilation effect to a certain extent.

[0004] Therefore, it is necessary to propose an esophageal stenosis balloon dilator to solve the above problems. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to propose a new esophageal stenosis balloon dilator for the problems of inaccurate positioning at the stenotic orifice and poor dilation effect of the existing balloon dilator.

[0006] To solve the above technical problems, the utility model provides an esophageal stenosis balloon dilator, including: a catheter, a bottom balloon and a double balloon are fixedly sleeved on the lower part of the catheter. The double balloon includes an inner water balloon and an outer balloon wrapped outside the inner water balloon. The bottom balloon is located at the bottom of the double balloon and is communicated with the outer balloon. The outer balloon is detachably connected to an inflation device through a trachea, and the trachea is arranged on the outside of the catheter. The inner water balloon is detachably connected to a water filling device through a water pipe, and the water pipe is arranged on one inner wall of the catheter. A non-slip sheet is detachably clamped on the upper part of the catheter.

[0007] The arrangement of the inner water balloon and the outer balloon in the double balloon not only enhances the pressure resistance of the double balloon, dilates the stenotic part with gradually increasing pressure, improves the dilation effect, but also the inner water balloon has a certain supporting effect on the outer balloon, and has better pressure resistance than a single balloon.

[0008] In a preferred embodiment of this solution, the bottom bladder is a cylindrical structure, the inner water bladder is a spherical structure, and the outer air bladder is an oval spherical structure.

[0009] In a preferred embodiment of this solution, the anti-slip piece is an arc-shaped sheet structure, a card hole is provided at the center position thereof, and a bayonet is provided between the card hole and the lower edge of the anti-slip piece.

[0010] Furthermore, a plurality of ventilation holes are evenly provided around the card hole on the anti-slip piece.

[0011] The setting of the anti-slip piece can mark and prevent the double bladder placed at the narrow part from sliding before water filling and air inflation, improving the positioning accuracy.

[0012] In a preferred embodiment of this solution, scales are provided on the catheter wall.

[0013] In this esophageal stricture balloon dilator, by setting the anti-slip piece, the accidental sliding of the double bladder before flushing and air inflation can be prevented; by setting the bottom bladder, when the catheter is a guide wire tube, it can play an anti-slip and buffering role before water filling and air inflation for the double bladder, and when the catheter is a feeding tube, it can prevent gastric juice reflux; the setting of the double bladder, compared with a simple air bladder, not only strengthens the compressive resistance at the stricture, but also improves the dilation effect. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic structural diagram of an esophageal stricture balloon dilator;

[0016] Figure 2 It is a schematic structural diagram of the anti-slip piece;

[0017] In the figure: catheter 1, inner water bladder 3, outer air bladder 4, bottom bladder 5, trachea 6, water pipe 7, anti-slip piece 8, card hole 9, bayonet 10, and ventilation hole 11. Detailed Embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0019] Embodiment 1

[0020] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of an esophageal stricture balloon dilator; this esophageal stricture balloon dilator includes a catheter 1, and a bottom balloon 5 and a double balloon are fixedly sleeved on the lower part of the catheter 1.

[0021] The double balloon includes an inner water balloon 3 and an outer air balloon 4 wrapped outside the inner water balloon 3. The bottom balloon 5 is located at the bottom of the double balloon and is communicated with the outer air balloon 4. The bottom balloon 5 is a cylindrical structure, the inner water balloon 3 is a spherical structure, and the outer air balloon 4 is an elliptical spherical structure.

[0022] The outer air balloon 4 is detachably connected to an inflation device through an air tube 6, and the air tube 6 is arranged on the outside of the catheter 1. The inner water balloon 3 is detachably connected to a water filling device through a water pipe 7, and the water pipe 7 is arranged on one inner wall of the catheter 1. An anti-slip sheet 8 is detachably clamped on the upper part of the catheter 1.

[0023] Please refer to Figure 2 , Figure 2 which is a schematic structural diagram of the anti-slip sheet; the anti-slip sheet 8 is an arc-shaped sheet structure, and a clamping hole 9 is opened at the center position. A clamping opening 10 is opened between the clamping hole 9 and the lower edge of the anti-slip sheet 8. The catheter 1 is clamped into the clamping hole 9 from the clamping opening 10, and the anti-slip sheet 8 plays a role of positioning and anti-slip for the catheter 1. In addition, a plurality of ventilation holes 11 are evenly opened around the clamping hole 9 on the anti-slip sheet 8 for ventilation use.

[0024] In this embodiment, under the guidance of a guide wire, the double balloon is located in the esophageal stricture area of the patient. In order to prevent the double balloon from sliding down at the stricture area before water filling and inflation, an anti-slip sheet is clamped on the part of the catheter extending outside the patient's body, and then the inner water balloon is filled with water through a water filling device, and then the bottom balloon and the outer air balloon are inflated through an inflation device. After the bottom balloon is inflated first and clamped in the esophagus, it can also play a role of supporting and anti-slip for the double balloon, and the esophageal stricture area is gradually expanded by using water pressure and air pressure, which not only does not damage the esophagus, but also has a good expansion effect.

[0025] Embodiment 2

[0026] On the basis of the structure of Embodiment 1, the catheter can also be changed to a nutrition tube with a slightly larger diameter, which is used to provide support for the stenotic segment and supply nutrition after esophageal stenosis surgery (scar tissue at the esophageal stenosis site after treatment may grow again). At this time, scales are provided on the catheter wall of the catheter, and according to the scales, it is determined whether the double cuffs are located at the postoperative stenosis. After installation, nutrition is delivered to the patient's body through the catheter. At this time, the setting of the bottom cuff can be used to prevent gastric juice reflux.

[0027] Since the esophageal stenosis of the patient after ESD surgery needs to play a role in long-term support, as well as delivering nutrition and water, the catheter can be made of polyurethane material and can be indwelled for 90 - 180 days.

[0028] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A balloon dilator for esophageal stenosis, characterized in that: include: A catheter, wherein a bottom bag and a double-cuff bag are fixedly provided at the lower part of the catheter, the double-cuff bag comprises an inner water bag and an outer air bag wrapped around the inner water bag, the bottom bag is located at the bottom of the double-cuff bag and is communicated with the outer air bag, the outer air bag is detachably connected to an inflation device via an air tube, the air tube is attached to the outer side of the catheter, the inner water bag is detachably connected to a water inflation device via a water pipe, the water pipe is attached to an inner wall of one side of the catheter, and an anti-slip sheet is detachably provided on the upper part of the catheter.

2. The esophageal stenosis balloon dilator according to claim 1, characterized in that: The bottom bag is a cylindrical structure, the inner water bag is a spherical structure, and the outer air bag is an elliptical spherical structure.

3. The esophageal stenosis balloon dilator according to claim 1, characterized in that: The anti-slip sheet is an arc-shaped sheet structure, a clamping hole is provided at the center of the anti-slip sheet, and a clamping opening is provided between the clamping hole and the lower edge of the anti-slip sheet.

4. The esophageal stenosis balloon dilator according to claim 3, characterized in that: A plurality of ventilation holes are evenly arranged around the clamping hole on the anti-slip sheet.

5. The esophageal stenosis balloon dilator according to claim 1, characterized in that: The conduit wall is provided with scales.

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