Esophageal stenosis dilator used after esophageal cancer operation

Abstract

The utility model relates to the technical field of medical instruments, and discloses an esophageal stenosis dilator used after esophageal cancer operation, which comprises a tube body, a support mechanism is fixedly connected inside the front end of the tube body, a dilation mechanism is fixedly connected on the support mechanism, and the dilation mechanism is fixedly connected with the tube body through a plurality of first catheters. According to the esophageal stenosis dilator, the front end of the esophageal stenosis dilator is inserted into the esophagus through the nose or the oral cavity, the part, needing to be dilated, in the esophagus is found out with the help of the miniature camera, air or normal saline is injected into the tube body through an existing injector, the air bag is gradually expanded, the outer wall of the air bag makes contact with the stenosis esophagus, and the air bag gradually expands outwards; after long-time dilation treatment, the narrow esophagus gradually recovers to be the same as the original esophagus in diameter, the dilation mechanism and the tube body are connected through the first catheter, and an enough gap exists between the dilation mechanism and the tube body, so that saliva circulates at the dilation part, and the inflammation risk at the dilation part of the esophagus is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an esophageal stricture dilator used after esophageal cancer surgery. Background Art

[0002] During the wound healing process at the incision of esophageal cancer surgery, excessive deposition of collagen can lead to local tissue hardening and scarring, compressing normal tissue and causing esophageal stenosis. Patients with esophageal stenosis often experience symptoms such as difficulty swallowing and food reflux. The main function of the esophageal stenosis dilator is to physically expand the narrow esophagus to restore its normal lumen diameter, which helps to improve the patient's diet and nutritional intake and improve the quality of life.

[0003] The patent with the current announcement number CN219662616U discloses an esophageal stenosis dilator, including a bougie, the bougie including an extension tube and an air bag, the extension tube is a hollow tube body, the air bag is arranged at the distal end of the extension tube, and the air inlet pipe of the air bag extends to the proximal end of the extension tube through the extension tube; the outer side of the air bag is sleeved with a plurality of dilation tubes, the dilation tubes are connected to the extension tube through a connecting belt; the plurality of dilation tubes are also connected by a connecting belt; the dilation tubes are composed of a plurality of dilation plates, and the plurality of dilation plates are connected by a connecting net. The esophageal stenosis dilator does not need to repeatedly replace the bougie, avoiding the risk of the bougie shifting and piercing the stomach wall or esophagus; a drug storage device is added, and the drug is automatically applied after entering the esophagus, which is easy to operate and solves the problem of difficulty in applying the drug.

[0004] However, the above technology still has the following problems:

[0005] When patients with esophageal stenosis use an esophageal stenosis dilator to dilate their esophagus, the doctor inserts the front end of the dilator into the esophagus through the nose or mouth. During the dilation process, the patient will have an obvious feeling of blockage. The balloon dilator will pass through the patient's throat during treatment. The patient sometimes swallows saliva unconsciously, which increases the irritation of the esophagus, aggravates the feeling of esophageal blockage, and makes the symptoms more obvious. Because oral secretions contain various enzymes and bacteria, long-term retention in the esophagus may increase the risk of esophageal inflammation. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides an esophageal stricture dilator for use after esophageal cancer surgery to dilate the esophagus and reduce the risk of esophageal inflammation.

[0007] The utility model provides the following technical solution: an esophageal stenosis dilator for esophageal cancer surgery, comprising a tube body, a support mechanism fixedly connected to the front end of the tube body, an expansion mechanism fixedly connected to the support mechanism, the expansion mechanism comprising a second catheter fixed to the upper end of the support rod, an air bag fixedly connected to the surface of the second catheter, and the expansion mechanism and the tube body are fixedly connected via a plurality of first catheters.

[0008] Furthermore, the support mechanism comprises a support frame fixedly connected to the tube body, and a plurality of support rods in a circumferential array are fixedly connected to the outer side of the support frame.

[0009] Furthermore, a miniature camera is fixedly connected to the front end of the support frame.

[0010] Furthermore, the inner surface of the second conduit is provided with a plurality of connecting rods, both ends of which are fixedly connected to the supporting mechanism.

[0011] Furthermore, the airbag is made of medical silicone or rubber material.

[0012] Furthermore, the tube body, the first conduit and the second conduit are made of polymer materials.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] This esophageal stricture dilator used after esophageal cancer surgery can effectively use physical methods to dilate the narrow esophagus. During the dilation process, if the patient with esophageal stenosis accidentally swallows saliva, the saliva can flow down through the gap between the dilator mechanism and the tube body, and the saliva will not stay in the dilation site for a long time, which can effectively reduce the risk of inflammation at the esophageal dilation site. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the front three-dimensional structure of the utility model as a whole;

[0017] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the utility model as a whole;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the overall supporting mechanism of the utility model.

[0019] In the figure: 1. tube body; 2. support mechanism; 201. support frame; 202. support rod; 3. expansion mechanism; 301. second catheter; 302. airbag; 4. first catheter; 5. micro camera; 6. connecting rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figures 1 to 4 A dilator for esophageal stenosis after esophageal cancer surgery includes a tube body 1, a support mechanism 2 is fixedly connected to the front end of the tube body 1, and an expansion mechanism 3 is fixedly connected to the support mechanism 2. The expansion mechanism 3 includes a second catheter 301 fixed to the upper end of the support rod 202, and a balloon 302 is fixedly connected to the surface of the second catheter 301. The expansion mechanism 3 is fixedly connected to the tube body 1 through a plurality of first catheters 4.

[0022] The utility model is similar to the existing esophageal stenosis dilator for esophageal cancer surgery. For example, the patent with announcement number CN219662616U discloses an esophageal stenosis dilator. The main improvement of the utility model is that the balloon 302 is separated from the tube body 1 by one end and connected with the first catheter 4, so that there is a certain gap in the expansion part to allow the saliva secretion to flow. Figures 1 to 4 As shown, the esophageal stricture dilator for postoperative treatment of esophageal cancer in the utility model, when in use, the doctor inserts the front end of the esophageal stricture dilator into the esophagus through the nose or mouth, finds the part in the esophagus that needs to be dilated with the help of the miniature camera 5, and injects air or saline into the tube body 1 with an existing syringe. The air or saline flows through the tube body 1 and the first catheter 4 in turn to reach the inside of the airbag 302. The airbag 302 gradually expands, so that the outer wall of the airbag 302 contacts the narrow esophagus and gradually expands outward. After a long period of dilation treatment, the narrow esophagus gradually recovers to the same diameter as the original tube.

[0023] like Figure 3 As shown, the support mechanism 2 includes a support frame 201 fixedly connected to the tube body 1 , and a plurality of support rods 202 in a circumferential array are fixedly connected to the outer side of the support frame 201 .

[0024] Specifically, the support mechanism 2 is used to connect the expansion mechanism 3 and the tube body 1, and to ensure that there is a certain distance between the tube body 1 and the expansion component 3, so as to facilitate the oral secretions to flow downward from the second conduit 301. At the same time, the second conduit 301 of the expansion mechanism 3 is supported to prevent the expansion pressure from being too large during expansion, which causes the diameter of the second conduit 301 to become smaller, thereby reducing the circulation effect of the oral secretions.

[0025] like Figure 3 or Figure 4 As shown, a miniature camera 5 is fixedly connected to the front end of the support frame 201 .

[0026] Specifically, the micro camera 5 helps doctors find narrowed areas in the esophagus and perform treatments.

[0027] like Figure 3 As shown, a plurality of connecting rods 6 are provided on the inner surface of the second conduit 301 , and both ends of the connecting rods 6 are fixedly connected to the supporting mechanism 2 .

[0028] Specifically, the connecting rod 6 further supports the second conduit 301 to prevent the expansion pressure from being too large, which may cause the internal space of the second conduit 301 to be reduced and reduce the circulation of oral secretions.

[0029] like Figure 1 or Figure 3 As shown, the airbag 302 is made of medical silicone or rubber material.

[0030] Specifically, medical silicone or rubber materials are soft, elastic and durable, which can ensure that the balloon dilator can fit the patient's body closely after inflation, thereby achieving an effective dilation effect. At the same time, these materials also have certain biocompatibility, which can reduce irritation and rejection reactions to the patient's body.

[0031] like Figure 1 or Figure 3 As shown, the tube body 1, the first conduit 4 and the second conduit 301 are made of polymer materials.

[0032] Specifically, polymer materials have certain elasticity and toughness, can withstand the pressure of expansion and contraction, and also have certain corrosion resistance.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An esophageal stricture dilator for postoperative treatment of esophageal cancer, comprising a tube body (1), characterized in that: The front end of the tube body (1) is fixedly connected to a support mechanism (2), the support mechanism (2) is fixedly connected to an expansion mechanism (3), the expansion mechanism (3) comprises a second catheter (301) fixed to the upper end of the support rod (202), the surface of the second catheter (301) is fixedly connected to an air bag (302), and the expansion mechanism (3) and the tube body (1) are fixedly connected via a plurality of first catheters (4).

2. The esophageal stenosis dilator for postoperative esophageal cancer surgery according to claim 1, characterized in that: The support mechanism (2) comprises a support frame (201) fixedly connected to the tube body (1), and a plurality of support rods (202) in a circumferential array are fixedly connected to the outer side of the support frame (201).

3. The esophageal stricture dilator for postoperative esophageal cancer surgery according to claim 2, characterized in that: A miniature camera (5) is fixedly connected to the front end of the support frame (201).

4. The esophageal stricture dilator for postoperative esophageal cancer surgery according to claim 1, characterized in that: The inner surface of the second conduit (301) is provided with a plurality of connecting rods (6), and both ends of the connecting rods (6) are fixedly connected to the supporting mechanism (2).

5. The esophageal stenosis dilator for postoperative esophageal cancer surgery according to claim 1, characterized in that: The airbag (302) is made of medical silica gel or rubber material.

6. The esophageal stenosis dilator for postoperative esophageal cancer surgery according to claim 1, characterized in that: The tube body (1), the first conduit (4) and the second conduit (301) are made of polymer materials.

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