Gastrostomy tube sleeve and sleeve connecting and fixing device

Abstract

The utility model provides a gastrostomy tube sleeve and a sleeve connecting and fixing device, and the gastrostomy tube sleeve comprises a Y-shaped gastrostomy tube which comprises a gastrostomy end main tube, and a jejunum end branch tube and a stomach tube end branch tube which are respectively communicated with the gastrostomy end main tube; the feeding tube is connected with the jejunum end branch tube in a sleeved mode, and the outer diameter of the feeding tube is smaller than the inner diameter of the jejunum end branch tube; the connecting and fixing device has an opening state and a closing state, and in the process of switching from the opening state to the closing state, the connecting and fixing device can define stepped through holes matched with the feeding tube and the jejunum end branch tube respectively; and a plurality of sealing positions for sealing fit clearances among the feeding tube, the jejunum end branch tube and the connecting and fixing device are arranged in the stepped through hole. According to the connecting and fixing device, it is guaranteed that the Y-shaped fistulization tube and the feeding tube are well connected in a sealed mode through the connecting and fixing device.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and in particular to a gastrostomy tube sleeve and a sleeve connection and fixing device. Background Art

[0002] Many patients need gastrostomy and jejunostomy in clinic, and these patients have Y-shaped ostomy tubes after ostomy. The Y-shaped ostomy tube has a jejunal end branch and a gastric end branch. The jejunal end branch has a built-in feeding tube, which can be directly inserted into the distal end of the duodenum to supply nutrient solution to the duodenum; the gastric end branch is connected to a drainage bag to drain intestinal contents.

[0003] Since the diameter of the feeding tube is usually smaller than the diameter of the jejunal end branch, if the two are connected only by matching the size between the jejunal end branch and the feeding tube, the connection between the jejunal end branch and the feeding tube will be unreliable, resulting in leakage. At present, in order to prevent the feeding tube from falling out of the jejunal end branch and the occurrence of leakage, a disposable tourniquet is usually embedded in the joint between the jejunal end branch and the feeding tube, and a waterproof tape is wrapped around the outside of the disposable tourniquet to fix it, and finally the joint is wrapped and closed with an elastic tape. This connection method is very cumbersome in actual application, and the dressings such as disposable tourniquets, waterproof tapes, and elastic tapes used for sealing are not easy to replace and disinfect, and the connection and fixing effects and sealing effects are not ideal, and leakage and bacterial growth will still occur, thereby inducing secondary infection. Utility Model Content

[0004] In view of the above problems, the embodiment of the utility model provides a gastrostomy tube sleeve and a sleeve connection fixing device to solve the problem that the existing feeding tube is easy to fall out from the jejunal end branch and leaks frequently.

[0005] In a first aspect, an embodiment of the utility model provides a gastrostomy tube sleeve, comprising:

[0006] The Y-shaped fistula tube comprises a fistula end main tube and a jejunal end branch tube and a stomach end branch tube respectively connected to the fistula end main tube;

[0007] A feeding tube, sleeved with the jejunal end branch tube, wherein the outer diameter of the feeding tube is smaller than the inner diameter of the jejunal end branch tube;

[0008] The connecting and fixing device has an open state and a closed state. During the switching process from the open state to the closed state, the connecting and fixing device can enclose and form a stepped through hole that matches the feeding tube and the jejunal end branch tube respectively, and the stepped through hole has a plurality of sealing positions inside for sealing the matching gaps among the feeding tube, the jejunal end branch tube and the connecting and fixing device.

[0009] In some embodiments, the engagement fixing device comprises:

[0010] A first half body having a first half hole therethrough;

[0011] A second half body matching the first half body has a through second half hole, and the first half hole and the second half hole can be enclosed to form the stepped through hole;

[0012] A locking portion, disposed on the first half body;

[0013] The locking portion is arranged on the second half body, and the locking portion cooperates with the locking portion.

[0014] In some embodiments, the stepped through hole comprises:

[0015] The jejunal segment and the feeding segment are connected, and the inner diameter of the jejunal segment is larger than the inner diameter of the feeding segment, so as to be used for connecting the jejunal end branch tube and the feeding tube respectively.

[0016] In some embodiments, the cross-sections of the first half body and the second half body are both semi-elliptical, the first half hole and the second half hole are both semi-circular holes, and there is interference fit between the jejunal end branch tube and the jejunal segment, and between the feeding tube and the feeding segment.

[0017] In some embodiments, the gastrostomy tube sleeve further comprises:

[0018] The first elastic sealing member is arranged on the shoulder of the stepped through hole, and the outer diameter of the first elastic sealing member is smaller than the inner diameter of the jejunal segment and larger than the inner diameter of the feeding segment.

[0019] In some embodiments, the end of the jejunal end branch tube has a flange, and the inner wall of the jejunal segment is provided with a limiting groove corresponding to the flange;

[0020] The connection and fixing device also includes:

[0021] The second elastic sealing member arranged in the limiting groove is used to seal the fitting gap between the jejunal segment and the end of the jejunal end branch pipe.

[0022] In some embodiments, the edges of the jejunal segment and the feeding segment are respectively provided with sealing ribs for sealing the fitting gap between the jejunal segment and the outer wall of the jejunal end branch tube, and for sealing the fitting gap between the feeding segment and the outer wall of the feeding tube.

[0023] In some embodiments, the first half body and the second half body are semi-open structures, one side of the first half body and the second half body are pivotally connected by a thin wall, and the other side of the first half body and the second half body are connected by the cooperation between the locking part and the locking part.

[0024] In some embodiments, the first half body has a first docking surface, the second half body has a second docking surface, and in the closed state, the first docking surface contacts the second docking surface;

[0025] The connection and fixing device also includes:

[0026] The third elastic sealing member is respectively arranged on the first butt joint surface and the second butt joint surface to seal the fitting gap between the first half body and the second half body.

[0027] In a second aspect, an embodiment of the utility model further provides a gastrostomy tube sleeve connection and fixing device, which is applied to the gastrostomy tube sleeve as described above.

[0028] Due to the adoption of the above technical solution, the technical effects achieved by the utility model are as follows:

[0029] First, the gastrostomy tube sleeve provided by the utility model includes a Y-shaped ostomy tube, a feeding tube and a connection fixing device. Among them, the Y-shaped ostomy tube includes a ostomy end main tube, a jejunal end branch tube and a gastric tube end branch tube, and the connection fixing device is used to connect the Y-shaped ostomy tube and the feeding tube. Specifically, when the connection fixing device is in an open state, the user can place the jejunal end branch tube and the feeding tube in the stepped through hole of the connection fixing device, and through the switching of the connection fixing device between the open state and the closed state, the stepped through hole is respectively matched with the jejunal end branch tube and the feeding tube, thereby realizing the connection between the Y-shaped ostomy tube and the feeding tube. In addition, the multiple sealing positions arranged inside the stepped through hole can seal the matching gap between the feeding tube, the jejunal end branch tube and the connection fixing device, so as to help ensure that the connection fixing device is well sealed between the Y-shaped ostomy tube and the feeding tube. The setting of this structure can prevent the feeding tube from falling out of the jejunal end branch to the greatest extent, greatly reduce the possibility of leakage of the gastrostomy tube sleeve, avoid bacterial growth and secondary infection, and thus help improve the safety and stability of the gastrostomy tube sleeve.

[0030] Secondly, the utility model also provides a connection and fixing device, which is applied to the above gastrostomy tube sleeve, so as to achieve a stable sealed connection between the branches of the gastrostomy tube sleeve. In addition, the connection and fixing device has a simple structure, is easy to operate, and is convenient for users to operate; the cost is reduced, which is conducive to mass production of products.

[0031] The above description is only an overview of the technical solution of the embodiment of the utility model. In order to more clearly understand the technical means of the embodiment of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are only used to illustrate the embodiments and are not considered to be limitations of the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0033] Figure 1 It is a structural schematic diagram of a gastrostomy tube sleeve provided by the utility model;

[0034] Figure 2 It is a structural schematic diagram of another gastrostomy tube sleeve provided by the utility model;

[0035] Figure 3 This is a structural schematic diagram of a connection and fixing device provided by the utility model in an open state;

[0036] Figure 4 It is a structural schematic diagram of a connection and fixing device provided by the utility model in a closed state;

[0037] Figure 5 The utility model provides Figure 3 Enlarged schematic diagram of part A.

[0038] In the figure:

[0039] 100Y-type fistula tube, 110 fistula end main tube, 120 jejunal end branch tube, 121 flange, 130 gastric end branch tube;

[0040] 200 feeding tubes;

[0041] 300 connection fixing device, 310 first half body, 311 first half hole, 312 locking part, 320 second half body, 321 second half hole, 322 locking part, 330 limiting groove, 340 sealing rib;

[0042] 400 is a first elastic seal, 410 is a second elastic seal, and 420 is a third elastic seal. DETAILED DESCRIPTION

[0043] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein.

[0044] Reference Figure 1 and Figure 2 As shown, the utility model provides a gastrostomy tube sleeve, comprising a Y-shaped ostomy tube 100, a feeding tube 200 and a connection fixing device 300. The Y-shaped ostomy tube 100 comprises an ostomy end main tube 110 and a jejunal end branch tube 120 and a gastric tube end branch tube 130 respectively connected to the ostomy end main tube 110; the feeding tube 200 is sleeved with the jejunal end branch tube 120, and the outer diameter of the feeding tube 200 is smaller than the inner diameter of the jejunal end branch tube 120.

[0045] In addition, the connecting and fixing device 300 has an open state and a closed state. During the switching process from the open state to the closed state, the connecting and fixing device 300 can enclose and form a stepped through hole (not marked in the figure) that matches the feeding tube 200 and the jejunal end branch tube 120 respectively, and the stepped through hole has a plurality of sealing positions inside for sealing the matching gaps among the feeding tube 200, the jejunal end branch tube 120 and the connecting and fixing device 300.

[0046] It should be noted that the gastrostomy tube sleeve provided in the present application adopts a Y-shaped structure, wherein the Y-shaped ends of the Y-shaped gastrostomy tube 100 sleeve are respectively the jejunal end branch 120 and the gastric tube end branch 130, the jejunal end branch 120 is connected to the feeding tube 200, and is used to transport nutrient solution to the human body; the gastric tube end branch 130 is connected to the external drainage bag, and is used to drain the intestinal contents of the human body to the outside. In addition, in order to achieve the connection between the jejunal end branch 120 and the feeding tube 200, the outer diameter of the feeding tube 200 is usually smaller than the inner diameter of the jejunal end branch 120; for example, the outer diameter of the feeding tube 200 can be 2cm, and the inner diameter of the jejunal end branch 120 can be 2.5cm. There can be many sizes, models, etc. of the feeding tube 200, the jejunal end branch 120, and even the fistula end main tube 110 and the gastric tube end branch 130 described in the present application, and the present application does not limit this, and medical staff can make reasonable choices according to different treatment needs.

[0047] It should also be noted that the connection and fixing device 300 in the present application switches between an open state and a closed state to achieve a sealed connection between the feeding tube 200, the jejunal end branch tube 120 and the connection and fixing device 300. The connection and fixing device 300 can be implemented by different structures such as an articulated structure, a split structure, a sliding connection structure, etc. For example, when the connection and fixing device 300 is an articulated structure, it can include a first half body 310 and a second half body 320, and a rotating shaft for connecting the first half body 310 and the second half body 320, and the rotation connection between the first half body 310 and the second half body 320 is achieved by setting the rotating shaft; when the connection and fixing device 300 is a split structure, it can include a first half body 310 and a second half body 320; Two half bodies 320, the first half body 310 is provided with a buckle, and the second half body 320 is provided with a slot, and the detachable connection between the first half body 310 and the second half body 320 is achieved through the cooperation between the buckle and the slot; when the connecting and fixing device 300 is a sliding connection structure, it may include the first half body 310 and the second half body 320, the first half body 310 is provided with a slide rail, and the second half body 320 is provided with a slide groove, and the sliding connection between the first half body 310 and the second half body 320 is achieved through the cooperation between the slide rail and the slide groove.

[0048] It can be found that there can be many different implementations of the specific structure of the connection and fixing device 300. Users can choose a suitable structure according to different product design requirements and different application scenarios, and this application does not limit this.

[0049] In addition, the stepped through hole formed inside the connection and fixing device 300 has multiple sealing positions. On the one hand, the sealing position can be formed by the setting position and sealing structure of the sealing member (such as a sealing ring, a sealing gasket, etc.); on the other hand, the sealing position can also be formed by the internal structure of the stepped through hole, such as a sealing rib is provided inside the stepped through hole. The present application does not limit the formation type of the sealing position. In addition, the setting positions of the multiple sealing positions can respectively correspond to the connection between the feeding tube 200 and the jejunal end branch tube 120, the connection between the feeding tube 200 and the connection and fixing device 300, the connection between the jejunal end branch tube 120 and the connection and fixing device 300, and the connection between the jejunal end branch tube 120 and the connection and fixing device 300. The present application does not limit the setting position of the sealing position.

[0050] The gastrostomy tube sleeve provided by the utility model, when the connecting and fixing device 300 is in the open state, the user can place the jejunal end branch tube 120 and the feeding tube 200 in the stepped through hole of the connecting and fixing device 300, and by switching the connecting and fixing device 300 between the open state and the closed state, the stepped through hole is matched with the jejunal end branch tube 120 and the feeding tube 200, respectively, so as to realize the connection between the Y-shaped ostomy tube 100 and the feeding tube 200. In addition, the multiple sealing positions arranged inside the stepped through hole can seal the matching gap between the feeding tube 200, the jejunal end branch tube 120 and the connecting and fixing device 300, so as to ensure the good sealing between the Y-shaped ostomy tube 100 and the feeding tube 200 by the connecting and fixing device 300. This structural setting can prevent the feeding tube 200 from escaping from the jejunal end branch 120 to the greatest extent, greatly reduce the possibility of leakage of the gastrostomy tube sleeve, avoid bacterial growth and secondary infection, and thus help improve the safety and stability of the gastrostomy tube sleeve.

[0051] For ease of understanding, the following content in this application will take an embodiment of the hinged structure connection and fixing device 300 as an example to explain the relevant content of the gastrostomy tube sleeve and the sleeve connection and fixing device 300, specifically:

[0052] In some embodiments, reference Figure 3 and Figure 4 As shown, the connection and fixing device 300 includes a first half body 310, a second half body 320, a locking portion 312 and a locking portion 322. The first half body 310 has a through first half hole 311, the second half body 320 matches the first half body 310, and the second half body 320 has a through second half hole 321, the first half hole 311 and the second half hole 321 can be enclosed to form a stepped through hole (not marked in the figure); the locking portion 312 is arranged on the first half body 310, the locking portion 322 is arranged on the second half body 320, and the locking portion 322 matches the locking portion 312.

[0053] It should be noted that, although the first half body 310 and the second half body 320 in the present application match, it does not necessarily mean that the outer contours or shapes of the two are the same, and it is only necessary to ensure the matching connection between the first half body 310 and the second half body 320. For example, the first half body 310 can be a semi-cylinder, and the second half body 320 can be a columnar body; or, the first half body 310 and the second half body 320 can both be semi-cylinders, etc., and the present invention does not limit the shapes of the first half body 310 and the second half body 320.

[0054] However, for the sake of aesthetics and user convenience in operation and holding, preferably, the first half body 310 and the second half body 320 in the present application are both configured as semi-elliptical cylinders. The first half body 310 and the second half body 320 of this structure are not only more beautiful in appearance, but also because of the arc-shaped elliptical side walls of the first half body 310 and the second half body 320, when the user operates and holds the first half body 310 and the second half body 320, they can press the side walls to switch the connection and fixing device 300 from the open state to the closed state, thereby facilitating user operation.

[0055] It is understandable that the first half body 310 and the second half body 320 can be separated and connected through the locking cooperation between the locking part 312 and the locking part 322. The specific structures of the locking part 312 and the locking part 322 can be implemented in a variety of different forms. For example, the locking part 312 can be a locking column, and the locking part 322 can be a locking hole; or the locking part 312 can be a locking plate, and the locking part 322 can be a locking groove; or the locking part 312 can be a locking bayonet, and the locking part 322 can be a locking bayonet groove. The present application does not limit the specific structures of the locking part 312 and the locking part 322, and the locking cooperation method between the two.

[0056] In a specific example, in the hinged structure connection and fixing device 300, the first half body 310 and the second half body 320 are semi-open structures, one side of the first half body 310 and the second half body 320 are pivotally connected by a thin wall (not marked in the figure), and the other side of the first half body 310 and the second half body 320 are connected by the cooperation between the locking part 312 and the locking part 322.

[0057] In other embodiments, the stepped through hole includes a connected jejunal segment (not marked in the figure) and a feeding segment (not marked in the figure), and the inner diameter of the jejunal segment is larger than the inner diameter of the feeding segment, so as to respectively connect the jejunal end branch tube 120 and the feeding tube 200. Preferably, the first half hole 311 and the second half hole 321 are both semicircular holes, and the jejunal end branch tube 120 and the jejunal segment, as well as the feeding tube 200 and the feeding segment are interference fit.

[0058] On the one hand, since the jejunal end branch tube 120 and the feeding tube 200 are generally circular tubes, the first half hole 311 and the second half hole 321 are set as semicircular holes, which can make the stepped through hole better fit with the jejunal end branch tube 120 and the feeding tube 200; on the other hand, whether it is the feeding tube 200 or the jejunal end branch tube 120, since its materials are mostly made of silicone, polyethylene, polyurethane, etc., the pipeline structure made of such materials itself has a certain elasticity. In order to further improve the sealing performance of the stepped through hole when it cooperates with the jejunal end branch tube 120 and the feeding tube 200, the inner diameter of the jejunal segment in the stepped through hole can be set to be slightly smaller than the outer diameter of the jejunal end branch tube 120, and the inner diameter of the feeding segment can be set to be slightly smaller than the outer diameter of the feeding tube 200; in other words, an interference fit is adopted between the jejunal end branch tube 120 and the jejunal segment, and between the feeding tube 200 and the feeding segment, so that the stepped through hole can squeeze the jejunal end branch tube 120 and the feeding tube 200 to a certain extent, thereby achieving better sealing performance between the three.

[0059] In some embodiments, continue to refer to Figure 3 As shown, the gastrostomy tube sleeve further includes a first elastic seal 400, which is disposed at the shoulder of the stepped through hole, and the outer diameter of the first elastic seal 400 is smaller than the inner diameter of the jejunal segment and larger than the inner diameter of the feeding segment.

[0060] Among them, the first elastic seal 400 can be an elastic rubber ring, silicone ring, etc., and the present application does not limit the material of the first elastic seal 400. In addition, the first elastic seal 400 can be an integrated structure or a split structure, and the present application does not limit the structure of the first elastic seal 400. In addition, the first elastic seal 400 is arranged at the shoulder of the stepped through hole, that is, at the connection between the jejunal segment and the feeding segment, and can seal the connection position between the jejunal segment branch and the feeding tube 200. Due to the elasticity of the first elastic seal 400, it can not only make it more closely contact with the above-mentioned connection position, but also can make the connection fixing device 300 adapt to different sizes of feeding tubes 200 and jejunal end branches 120 to a certain extent.

[0061] In some embodiments, reference Figure 1 and Figure 5 As shown, the end of the jejunal end branch tube 120 has a flange 121, and the inner wall of the jejunal segment is provided with a limiting groove 330 corresponding to the flange 121. In addition, the connection and fixing device 300 also includes a second elastic sealing member 410, which is arranged in the limiting groove 330 to seal the matching gap between the jejunal segment and the end of the jejunal end branch tube 120.

[0062] Among them, the second elastic seal 410 can also be an elastic rubber ring, silicone ring, etc., and the second elastic seal 410 can also be an integrated structure or a split structure. The present application does not limit the material and structure of the second elastic seal 410.

[0063] In some embodiments, reference Figure 3 and Figure 5 As shown, the edges of the jejunal section and the feeding section are respectively provided with sealing ribs 340, which are respectively used to seal the fitting gap between the jejunal section and the outer wall of the jejunal end branch tube 120, and the fitting gap between the feeding section and the outer wall of the feeding tube 200. Among them, since the sealing ribs 340 mainly play the role of sealing the fitting gap, the material and structure of the sealing ribs 340 can refer to the material and structure of the first elastic seal 400 and the second elastic seal 410, and will not be repeated here.

[0064] Furthermore, the first half body 310 has a first butt joint surface, and the second half body 320 has a second butt joint surface. In the closed state, the first butt joint surface contacts the second butt joint surface. In addition, the connection and fixing device 300 further includes a third elastic seal 420, which is respectively arranged on the first butt joint surface and the second butt joint surface to seal the matching gap between the first half body 310 and the second half body 320. The third elastic seal 420 can be an elastic sealing strip respectively arranged on the first butt joint surface and the second butt joint surface.

[0065] The present application arranges the first elastic seal 400, the second elastic seal 410, the third elastic seal 420 and the sealing rib 340 so that the connection and fixing device 300 can respectively form the first sealing position, the second sealing position, the third sealing position and the fourth sealing position, so as to respectively seal the fitting gaps at the connection position of the jejunal end branch 120 and the feeding tube 200, between the jejunal end branch 120 and the jejunal segment, between the first half 310 and the second half 320, between the outer wall of the jejunal segment branch and the inner wall of the jejunal segment, and between the outer wall of the feeding tube 200 and the inner wall of the feeding segment, thereby greatly reducing the possibility of leakage when the connection and fixing device 300 cooperates with the feeding tube 200 and the jejunal end branch 120, thereby avoiding secondary infection as much as possible.

[0066] In addition, the embodiment of the utility model also provides a gastrostomy tube sleeve connection and fixing device 300, which is applied to the gastrostomy tube sleeve as above.

[0067] The connection and fixing device 300 is applied to the above-mentioned gastrostomy tube sleeve, so as to achieve a stable sealed connection between the branches of the gastrostomy tube sleeve. In addition, the connection and fixing device 300 has a simple structure, is easy to operate, and is convenient for users to operate; the cost is reduced, which is conducive to mass production of products.

[0068] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. Similarly, in order to simplify the present invention and help understand one or more of the various aspects of the present invention, in the above description of the exemplary embodiments of the present invention, the various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. Among them, the claims that follow the specific embodiments are hereby expressly incorporated into the specific embodiments, wherein each claim itself serves as a separate embodiment of the present invention.

[0069] It should be noted that the above embodiments illustrate the utility model rather than limit the utility model, and those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation on the claims. The word "comprising" does not exclude the existence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the existence of multiple such elements. The utility model can be implemented by means of hardware including several different elements and by means of appropriately programmed computers. In a unit claim that lists several devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names. The steps in the above embodiments should not be understood as limitations on the order of execution unless otherwise specified.

Claims

1. A gastrostomy tube sleeve, characterized in that: include: The Y-shaped fistula tube comprises a fistula end main tube and a jejunal end branch tube and a stomach end branch tube respectively connected to the fistula end main tube; A feeding tube, sleeved with the jejunal end branch tube, wherein the outer diameter of the feeding tube is smaller than the inner diameter of the jejunal end branch tube; The connecting and fixing device has an open state and a closed state. During the switching process from the open state to the closed state, the connecting and fixing device can enclose and form a stepped through hole that matches the feeding tube and the jejunal end branch tube respectively, and the stepped through hole has a plurality of sealing positions inside for sealing the matching gaps among the feeding tube, the jejunal end branch tube and the connecting and fixing device.

2. A gastrostomy tube sleeve according to claim 1, characterized in that: The connection and fixing device comprises: A first half body having a first half hole therethrough; A second half body matching the first half body has a through second half hole, and the first half hole and the second half hole can be enclosed to form the stepped through hole; A locking portion, disposed on the first half body; The locking portion is arranged on the second half body, and the locking portion cooperates with the locking portion.

3. A gastrostomy tube sleeve according to claim 2, characterized in that: The stepped through hole comprises: The jejunal segment and the feeding segment are connected, and the inner diameter of the jejunal segment is larger than the inner diameter of the feeding segment, so as to be used for connecting the jejunal end branch tube and the feeding tube respectively.

4. A gastrostomy tube sleeve according to claim 3, characterized in that: The cross-sections of the first half body and the second half body are both semi-elliptical, the first half hole and the second half hole are both semi-circular holes, and there is interference fit between the jejunal end branch tube and the jejunal segment, and between the feeding tube and the feeding segment.

5. A gastrostomy tube sleeve according to claim 3, characterized in that: Also includes: The first elastic sealing member is arranged on the shoulder of the stepped through hole, and the outer diameter of the first elastic sealing member is smaller than the inner diameter of the jejunal segment and larger than the inner diameter of the feeding segment.

6. A gastrostomy tube sleeve according to claim 5, characterized in that: The end of the jejunal end branch tube has a flange, and the inner wall of the jejunal segment is provided with a limiting groove corresponding to the flange; The connection and fixing device also includes: The second elastic sealing member arranged in the limiting groove is used to seal the fitting gap between the jejunal segment and the end of the jejunal end branch pipe.

7. A gastrostomy tube sleeve according to claim 3, characterized in that: The edges of the jejunal segment and the feeding segment are respectively provided with sealing ribs for sealing the fitting gap between the jejunal segment and the outer wall of the jejunal end branch tube, and for sealing the fitting gap between the feeding segment and the outer wall of the feeding tube.

8. A gastrostomy tube sleeve according to claim 2, characterized in that: The first half body and the second half body are semi-open structures, one side of the first half body and the second half body are pivotally connected via a thin wall, and the other side of the first half body and the second half body are connected via the cooperation between the locking part and the locking part.

9. A gastrostomy tube sleeve according to claim 8, characterized in that: The first half body has a first docking surface, the second half body has a second docking surface, and in the closed state, the first docking surface is in contact with the second docking surface; The connection and fixing device also includes: The third elastic sealing member is respectively arranged on the first butt joint surface and the second butt joint surface to seal the fitting gap between the first half body and the second half body.

10. A gastrostomy tube sleeve connection and fixing device, characterized in that: Applicable to the gastrostomy tube sleeve as described in any one of claims 1-9.

Images