CN217566838U

CN217566838U - Composite nutrient canal supported by esophageal stenosis

Info

Publication number: CN217566838U
Application number: CN202220097059.7U
Authority: CN
Inventors: 刘仕琪; 方莹; 任晓侠; 杨洪彬; 卢朝祥
Original assignee: Xian Childrens Hospital
Current assignee: Xian Childrens Hospital
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-10-14
Anticipated expiration: 2032-01-14

Abstract

The utility model provides a nutrition tube that compound esophagostenosis supported, includes the nutrition tube, the nested expansion sacculus that is used for expanding support esophagostenosis position after aerifing that is provided with on the nutrition tube still including preventing the sacculus that backflows, prevents that backflows sacculus nestification sets up on the nutrition tube, along the nutrition flow direction, prevents that backflows sacculus is located the rear of aerifing the sacculus, prevents that the external diameter after backflows sacculus aerifys can shutoff the esophagus completely. The invention can coat a polyurethane coating layer on the outer wall of the expansion balloon, and a plurality of balloon side holes which are through from front to back can be arranged on the expansion balloon. When the expansion balloon is expanded to support the esophageal stricture part, the invention can prevent gastric juice from flowing back to erode the esophageal stricture part, keep the normal flow of saliva and other secretions of a patient and prevent the material of the expansion balloon from stimulating scar tissues of the esophageal stricture part when the expansion balloon is expanded to support the esophageal stricture part.

Description

Nutrition tube supported by composite esophageal stenosis

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a composite esophageal stenosis supporting feeding tube.

Background

Patients often swallow corrosive chemical substances by mistake to cause esophageal burns, or congenital developmental deformity causes anastomotic scar hyperplasia after surgical treatment, and the like to cause esophageal stenosis. Patients with esophageal stenosis have difficulty swallowing food after eating, which seriously affects feeding, resulting in malnutrition. Especially for children, normal development is affected, the family care is difficult, and mental and economic burdens are heavy. In addition, many patients suffer from esophageal stenosis and reflux esophagitis, which is an important reason for aggravating the esophageal stenosis, and when the patients lie flat, gastric juice flows backwards into the esophagus in a retrograde manner, so that scar tissue growth at the esophageal stenosis part is stimulated and promoted, and repeated esophageal stenosis is caused. This recurrent refractory esophageal stenosis is a worldwide problem and seriously affects the health of the patient. The key to the treatment of esophageal stenosis diseases is how to prevent the scar constriction at the esophageal stenosis part and how to prevent gastric juice from flowing back to the esophageal stenosis part to promote the scar hyperplasia and recover the esophageal patency.

The existing treatment methods comprise digestive endoscopy balloon dilatation, incision, stent, hormone treatment and the like, but scar tissues at the esophageal stenosis part still grow again after treatment. Part of patients need to be subjected to thoracotomy for treatment again to remove the narrow section of the esophagus and to be anastomosed again, so that the operative wound is large, and the possibility of restenosis of the esophageal anastomotic orifice is still difficult to avoid after the operation, thereby forming a vicious circle.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a feeding tube for supporting a composite esophageal stricture, so as to solve at least one of the problems of influence on breathing and reflux when the existing esophageal stricture is supported.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a nutrition tube that compound esophagostenosis supported, includes the nutrition tube, the nested expansion sacculus that is used for expanding support esophagostenosis position after aerifing that is provided with on the nutrition tube still including preventing the sacculus that backflows, prevent that backflows sacculus nested set up in on the nutrition tube, along the nutrition flow direction, prevent that backflows sacculus is located the rear of expansion sacculus, the external diameter after preventing backflows sacculus aerifys can shutoff esophagus completely.

In one embodiment, the feeding tube is internally provided with a balloon tube, the outer diameter of the balloon tube is far smaller than the inner diameter of the feeding tube, and the tail end of the balloon tube penetrates through the tube wall of the feeding tube and is communicated with the expansion balloon and the backflow prevention balloon.

In one embodiment, the main body of the inflatable balloon is cylindrical after being inflated, the end part of the inflatable balloon is a plane or a conical surface, and the main body of the anti-backflow balloon is round cake after being inflated, and the end part of the anti-backflow balloon is a plane or a conical surface.

In one embodiment, the outside of the wall of the nutrition tube is provided with a scale for marking the depth of the upper edge of the expansion balloon from incisors at the front of the expansion balloon.

In one embodiment, the side wall of one end of the feeding tube in the body is provided with a plurality of feeding tube side holes.

In one embodiment, the dilation balloon is in communication with the anti-reflux balloon.

In one embodiment, the outer wall of the dilation balloon is coated with a layer of polyurethane coating.

In one embodiment, along the direction of nutrient flow, a plurality of balloon side holes which are communicated in the front and back direction are arranged on the expansion balloon, and the balloon side holes are communicated with the space in the front and back direction of the expansion balloon in the esophagus.

In one embodiment, the diameter of the balloon side hole is 2-3 mm.

In one embodiment, there is an accommodation space between the dilation balloon and the anti-reflux balloon.

Compared with the prior art, the invention has the beneficial effects that:

1. by arranging the backflow-preventing balloon, when the expansion balloon is expanded to support the narrow part of the esophagus, the narrow part of the esophagus is prevented from being eroded by the backflow of gastric juice.

2. By arranging the balloon side hole, when the esophageal stricture part is supported by expanding the balloon, the normal flow of secretion such as saliva of a patient is kept.

3. Through setting up the polyurethane coating layer, prevent that its material from producing the stimulation to narrow position scar tissue of esophagus when the narrow position of esophagus is supported in expansion sacculus inflation.

Drawings

Fig. 1 is a schematic representation of the use of the present invention (dilation balloon not inflated).

Fig. 2 is a schematic representation of the use of the present invention (dilation balloon inflation).

Fig. 3 is a partial schematic structural view (view one) of the location of the dilation balloon of the present invention.

Fig. 4 is a partial structural view (view two) of the location of the dilatation balloon of the present invention.

Fig. 5 is a schematic view of the feeding tube structure of the present invention (without nested dilation balloon and anti-reflux balloon).

Fig. 6 is a schematic cross-sectional view of a feeding tube of the present invention (nested with a dilatation balloon and an anti-reflux balloon).

Fig. 7 is a front view of the feeding tube of the present invention (nested with an expansion balloon and an anti-reflux balloon).

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the drawings and examples.

There are two main causes of esophageal stenosis in patients: firstly, owing to the unusual scar tissue of esophagus stenosis position hyperplasia constriction repeatedly, lead to the esophagus stenosis, another important reason is reflux esophagitis, and the patient is the stomach juice retrograde and flows back into the esophagus when crouching flat, and the stimulation promotes stenosis position scar tissue to grow, aggravates the esophagus stenosis. If only the expansion device is adopted to expand the esophageal stricture, the purpose of thorough healing cannot be achieved due to the fact that the gastric juice can not be prevented from flowing back.

Based on the structure, on one hand, the device capable of continuously expanding is supported at the esophageal stenosis part to avoid retraction of scar tissues, and on the other hand, the device capable of preventing backflow is adopted to prevent gastric juice from flowing back upwards into the esophageal stenosis part to stimulate proliferation of the scar tissues, so that the esophageal stenosis is effectively treated. Furthermore, a flow passage for the secretion of the oral cavity and the upper section of the esophagus and the lower section of the esophagus is also arranged, so that the secretion such as saliva is prevented from being sucked into the trachea and the lung by mistake.

The specific structure of the nutrition tube supported by the composite esophageal stenosis is shown in figures 1-7, the main body of the nutrition tube is a nutrition tube 6, and an expansion balloon 3 and a backflow prevention balloon 4 are nested on the nutrition tube 6. The backflow prevention balloon 4 is positioned behind the dilation balloon 3. Throughout the present invention, the "front and rear" are based on the direction of flow of the nutrient within the feeding tube 6.

The dilatation balloon 3 can be communicated with the anti-reflux balloon 4 for synchronous inflation. Or two completely independent balloons are respectively and independently inflated.

The specification of the nutrient canal 6 can be consistent with that of the existing gastrointestinal nutrient canal, the nutrient canal and the dilatation sacculus 3 and the backflow-preventing sacculus 4 are arranged in the body along the esophagus together, the tail end of the nutrient canal extends into the stomach of a patient, the front end of the nutrient canal is kept outside the oral cavity of the patient, and the front end part is provided with a wider outer opening 1 so as to conveniently inject nutrient substances into the nutrient canal 6.

The position of the expansion saccule 3 is enabled to expand and support the narrow part of the esophagus after being inflated, the main body of the expansion saccule 3 is in a cylindrical shape after being inflated, and the end part of the expansion saccule is in a plane or a conical surface.

For the inflation, a balloon tube 7 may be placed inside the feeding tube 6, the outer diameter of the balloon tube 7 obviously being much smaller than the inner diameter of the feeding tube 6. The front end of the air bag tube 7 is penetrated and extended out from the front end part or the front end side wall of the nutrition tube 6, and is provided with the inflation valve 5, and the tail end part 11 of the air bag tube 7 is penetrated and extended out from the side wall of the nutrition tube 6 and is communicated with the expansion saccule 3 and the anti-backflow saccule 4. The air bag tube 7 is used for inflating the expansion balloon 3 and the backflow prevention balloon 4, namely, the air flow is filled into the expansion balloon 3 and the backflow prevention balloon 4 through the air bag tube 7. After the inflation is finished, the inflation valve 5 can be closed in time to keep the expansion state of the expansion saccule 3 and the anti-backflow saccule 4.

Illustratively, the dilatation balloon 3 is fixed to the outer wall of the feeding tube 6. The outside of the tube wall of the feeding tube 6 is provided with a scale 9, obviously, the scale 9 is at least positioned in front of the expansion balloon 3 to mark the distance between the upper edge of the expansion balloon 3 and the depth of the incisors. Through the scale 9, the specific position of the expansion saccule 3 can be observed, and the expansion degree can be judged by combining the inflation quantity.

The one end of nutrition tube 6 in vivo is opened on its terminal lateral wall has a plurality of nutrition tube side openings 10, the setting of nutrition tube side opening 10 for nutrient substance not only flows from the terminal tip of nutrition tube 6 and flows out, thereby avoids blockking up, does benefit to the drainage.

The material of the expansion sacculus 3 can be polyethylene material which accords with the specification of YY/T0114-2008, and the outer wall of the expansion sacculus can be coated with a polyurethane coating layer, the polyurethane coating has good compatibility with human tissues, and the side effect that the material of the expansion sacculus 3 stimulates the growth of scar tissues at the narrow part of the esophagus can be prevented to the greatest extent.

The position of the anti-reflux saccule 4 ensures that the anti-reflux saccule expands to support the esophagus after being inflated, the main body of the anti-reflux saccule 4 is in a round cake shape after being inflated, and the end part of the anti-reflux saccule is a plane or a conical surface. The outer diameter of the anti-reflux balloon 4 after being inflated is equivalent to the inner diameter of the esophagus so as to achieve the purposes of completely blocking the esophagus and preventing gastric juice from flowing back; and has clearance with the esophageal wall at esophageal diastole to allow secretion to flow down into the stomach.

The material of the anti-backflow balloon 4 can be latex material which is in accordance with YY/T0114-2008.

In one embodiment of the invention, a plurality of balloon side holes 8 are arranged on the expansion balloon 3, the balloon side holes 8 are communicated with the front and the back of the expansion balloon 3 in the esophagus, and the aperture can be 2-3 mm as an example. . Specifically, after the expansion balloon 3 is inflated to support the esophageal stricture part, saliva secreted by the oral cavity and secretion on the upper esophageal segment (namely the space in front of the expansion balloon 3) flow into the lower esophageal segment (namely the space behind the expansion balloon 3) through the balloon side hole 8 and further flow into the stomach, so that the phenomenon that the secretion such as the saliva is sucked into the trachea or the lung by mistake to cause asphyxia or pulmonary infection is prevented.

In this embodiment, a necessary accommodation space is required between the dilatation balloon 3 and the backflow prevention balloon 4 to temporarily accommodate the aforementioned secretions such as saliva. This space need not very big, this because, the gastric juice volume of backflowing is often great and last, prevents that the sacculus 4 of backflowing can block that gastric juice is excessive to flow back into the narrow position of esophagus, and saliva etc. of upper segment bleeding can be temporarily stored up and stay in this accommodation space, and the latex material texture that prevents the sacculus 4 of backflowing adopted is very soft, and consequently the bleeding of storing up can flow into in the stomach along the clearance between the sacculus 4 of preventing backflowing and the esophagus wall when the esophagus diastole.

The using process of the invention is as follows:

after an esophageal stenosis patient receives esophageal balloon dilatation or magnetic force dredging treatment, the device is placed in an esophageal cavity of the patient, the fact that the dilatation balloon 3 enters a stenosis part can be determined through the scale 9 of the tube wall, the dilatation balloon 3 is inflated to dilate the dilatation balloon 3, the dilatation balloon 3 is made of a material with a slightly hard texture, the esophageal stenosis part can be effectively supported after filling, scar retraction is prevented, stenosis is avoided, and meanwhile, the polyurethane coating on the outer surface of the dilatation balloon 3 can effectively increase the compatibility of the supporting tube wall and the inner surface of an esophagus and promote esophageal mucosa repair; the balloon side hole 8 can keep digestive juice in the oral cavity and the upper section of the esophagus from flowing into the lower section, so that the digestive juice is prevented from being inhaled into a respiratory tract by mistake; the backflow-preventing saccule 4 is made of soft latex material, and can fully prevent gastric juice from returning upwards to the esophageal stricture part after swelling, so as to avoid stimulating the growth of scar tissue. Through the design, the recurrence of esophageal stenosis diseases can be effectively prevented, and the rapid recovery of patients is promoted.

The principle of the invention is as follows:

the invention adopts the interrupted and continuously expanded expansion saccule 3 to support the narrow part of the esophagus, thereby avoiding the retraction of scar tissues; while the continuous expansion is carried out, the expansion balloon 3 prevents digestive juice such as saliva and the like from flowing downwards into the stomach and is easy to be sucked into a respiratory tract by mistake, so that the balloon side hole 8 which is communicated up and down is designed at the same time, and the secretion of the oral cavity and the upper section of the esophagus is kept to normally flow into the lower section of the esophagus, thereby effectively avoiding the digestive juice from being sucked into the trachea and the lung by mistake; aiming at the pathogenic mechanism that the gastric juice flows back into the esophagus to stimulate the scar tissue proliferation, the backflow-preventing saccule 4 is adopted to prevent the gastric juice from flowing back upwards into the narrow part of the esophagus, thereby effectively avoiding the factor of stimulating the scar tissue proliferation. And aiming at the defect that the traditional stomach tube material can promote scar hyperplasia, the outer wall surface of the expansion sacculus 3 is covered with a polyurethane coating with good human tissue compatibility. The scar formation and hyperplasia can be reduced to the maximum extent through the design, so that the esophageal stenosis disease can be effectively treated.

Claims

1. The utility model provides a nutrition tube that compound esophagostenosis supported, includes nutrition tube (6), the nested expansion sacculus (3) that are used for supporting the narrow position of esophagus inflation back that is provided with on nutrition tube (6), its characterized in that still includes prevents backward flow sacculus (4), prevent backward flow sacculus (4) nested set up in on nutrition tube (6), along the nutrition flow direction, prevent that backward flow sacculus (4) are located the rear of expansion sacculus (3), prevent that the external diameter after backward flow sacculus (4) aerifys can the shutoff esophagus completely.

2. The feeding tube for supporting the composite esophageal stenosis according to claim 1, wherein a balloon tube (7) is arranged in the feeding tube (6), the outer diameter of the balloon tube (7) is far smaller than the inner diameter of the feeding tube (6), and the tail end of the balloon tube (7) penetrates through the tube wall of the feeding tube (6) and is communicated with the dilation balloon (3) and the backflow prevention balloon (4).

3. The feeding tube for supporting the composite esophageal stenosis according to claim 1, wherein the main body of the inflatable dilatation balloon (3) is in a cylindrical shape and the end part of the inflatable dilatation balloon is in a plane or a conical surface, and the main body of the inflatable anti-reflux balloon (4) is in a round cake shape and the end part of the inflatable dilatation balloon is in a plane or a conical surface.

4. The feeding tube for supporting the composite esophageal stenosis according to claim 1, wherein a scale (9) for marking the distance between the upper edge of the dilatation balloon (3) and the depth of the incisors is arranged outside the tube wall of the feeding tube (6) in front of the dilatation balloon (3).

5. The feeding tube for supporting the composite esophageal stenosis according to claim 1, wherein a plurality of feeding tube side holes (10) are formed on the side wall of one end of the feeding tube (6) in the body.

6. The feeding tube for supporting esophageal strictures as claimed in claim 1, wherein the dilatation balloon (3) is in communication with the anti-reflux balloon (4).

7. The feeding tube for supporting the stenosis of the composite esophagus according to claim 1, wherein the outer wall of the dilatation balloon (3) is coated with a polyurethane coating layer.

8. The feeding tube for supporting the composite esophageal stenosis according to any one of claims 1 to 7, wherein a plurality of balloon side holes (8) which are through from front to back are formed in the dilatation balloon (3) along the direction of feeding flow, and the balloon side holes (8) are communicated with the space in the esophagus front and back of the dilatation balloon (3).

9. The feeding tube for supporting the composite esophageal stenosis according to claim 8, wherein the diameter of the balloon side hole (8) is 2-3 mm.

10. The feeding tube for supporting esophageal stenosis according to claim 8, wherein a containing space is arranged between the expansion balloon (3) and the backflow prevention balloon (4).