Auxiliary fixing structure for indwelling T tube

Abstract

The utility model relates to the technical field of medical supplies, and provides an auxiliary fixing structure for an indwelling T-tube, comprising: a stoma base plate having a pasting surface and a limiting surface opposite to each other, the pasting surface being used for pasting the skin of a patient; one end of the arc-shaped limiting piece is connected with the limiting surface; the limiting cover is detachably connected to the arc-shaped limiting piece, a bending limiting through hole is formed between the limiting cover and the arc-shaped limiting piece, the bending limiting through hole penetrates through the stoma base plate, and the bending limiting through hole is bent at a preset angle and used for fixing an indwelling T tube. An avoiding notch is formed in the stoma base plate, extends to the bending limiting through hole and is used for avoiding the indwelling T tube. The indwelling T tube is moved into the bending limiting through hole from the avoiding notch. And then the stoma base plate is pasted on the peripheral skin of the abdominal stoma of the patient through the pasting surface. The bending limiting through hole is bent at the preset angle so that the remaining T-shaped pipe can be bent, scratching of articles such as clothes can be effectively avoided, and the remaining T-shaped pipe is prevented from shaking or falling off.

Description

Technical Field

[0001] The present application relates to the technical field of medical supplies, and in particular to an auxiliary fixing structure for an indwelling T-tube. Background Art

[0002] Indwelling T-tubes for bile duct drainage are widely used in hepatobiliary surgery. Indwelling T-tubes are used to relieve bile duct obstruction, support the bile duct, drain bile, control infection, etc. They are a routine treatment measure after bile duct exploration. After the doctor inserts the indwelling T-tube into the common bile duct during the operation, he fixes the indwelling T-tube to the skin with sutures, covers the gauze on the skin surface and fixes it with tape. Generally, the indwelling T-tube is removed after about 2 weeks of placement, but some patients need to keep the T-tube for half a month to more than 3 months, or even for several years due to residual stones and other reasons.

[0003] Due to the extended time patients wear tubes, bile leakage, dressing contamination, loose tape, and repeated tape sticking that remains on the skin is difficult to remove. It is difficult to clean the skin around the tube mouth, which leads to skin itching, wound ulceration, suture disconnection, drainage port infection, and other accidents. Patients discharged with tubes also need to face the problem of long-term self-care of the indwelling T-tube, such as replacing drainage bags, disinfecting drainage tube mouths, and replacing indwelling T-tube dressings. Patients also need to wear indwelling T-tubes to return to their daily work and life. Daily activities will cause discomfort from tape pulling, T-tube shaking in the tube cavity, and other discomforts. Patients with long-term indwelling T-tubes are afraid of tube dislocation and are very careful with every movement. Even in sleep, they have to be careful not to press on the drainage line, causing the indwelling T-tube to twist and block the tube or accidentally dislodge, which seriously reduces the patient's quality of life after surgery.

[0004] Traditionally, an open gauze block or a trimmed ordinary gauze block is used to cover the indwelling T-tube opening to fix the indwelling T-tube. Although this fixing method is simple, fast and low-cost, it cannot effectively prevent the indwelling T-tube from shaking or falling off.

[0005] Therefore, the above-mentioned technical defects need to be changed urgently. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide an auxiliary fixing structure for an indwelling T-tube, which aims to provide a solid support for the indwelling T-tube so that the indwelling T-tube can effectively avoid being scratched by clothing and other objects, while preventing the indwelling T-tube from shaking and falling off. The adhesive surface of the stoma base is easy to stick and tear off and is non-allergenic and residue-free, thus overcoming the shortcomings of traditional adhesive tapes that are easy to loosen and leave residue.

[0007] A technical solution adopted by the present application to solve the technical problem is as follows: an auxiliary fixing structure for an indwelling T-tube, comprising:

[0008] The stoma base plate has an adhesive surface and a limiting surface opposite to each other, and the adhesive surface is used for bonding the patient's skin;

[0009] An arc-shaped limiting member, one end of which is connected to the limiting surface;

[0010] and a limit cover, which is detachably connected to the arc-shaped limit piece, a bending limit through hole is provided between the limit cover and the arc-shaped limit piece, the bending limit through hole penetrates the stoma bottom plate, and the bending limit through hole is bent at a preset angle and used to fix the indwelling T-tube;

[0011] Among them, an avoidance gap is opened on the stoma bottom plate, and the avoidance gap extends to the bending limit through hole. The avoidance gap is used to avoid the placement of the T-tube.

[0012] This embodiment is further configured that the arc-shaped limiter includes:

[0013] A first limiting section, one end of which is connected to the limiting surface;

[0014] and a second limiting section, the second limiting section being connected to the first limiting section at a preset angle;

[0015] Among them, the first limiting section, the second limiting section and the stoma bottom plate are integrally formed.

[0016] This embodiment is further configured such that the preset angle is less than or equal to 90°, and the inner diameter of the bending limit through hole matches the outer diameter of the indwelling T-tube.

[0017] This embodiment is further configured such that the limit cover extends from the first limit section to the second limit section, and the limit cover is clamped on the first limit section and the second limit section; and the bent limit through hole extends from the first limit section to the second limit section.

[0018] This embodiment is further configured such that the position of the limit cover corresponding to the bending limit through hole and the position of the arc-shaped limit piece corresponding to the bending limit through hole are both provided with an anti-slip layer, and the bending limit through hole is sleeved with a retained T-tube through the anti-slip layer.

[0019] The present embodiment is further configured such that the anti-skid layer is an anti-skid rubber layer, and the anti-skid rubber layer is arranged on the inner side wall of the bending limiting through hole.

[0020] This embodiment is further configured such that the stoma base plate includes a base plate inner ring and a base plate outer ring, the base plate inner ring is arranged in the middle of the base plate outer ring, and the base plate outer ring is a silicone ring;

[0021] Among them, a structural reinforcement is arranged between the inner circle of the chassis and the arc-shaped limiter, and the structural reinforcement is used to connect and support the arc-shaped limiter.

[0022] This embodiment is further configured such that the arc-shaped limiter is arranged on the inner ring of the chassis, and the arc-shaped limiter and the inner ring of the chassis are integrally formed.

[0023] The present embodiment is further configured such that the stoma bottom plate is a silicone disc similar to the material of an ostomy bag, and the adhesive surface adopts a medical double-sided adhesive layer similar to the adhesive of an ostomy bag.

[0024] This embodiment is further configured such that a fixing patch is connected to the stoma base plate, the fixing patch comprises an elastic tape and an adhesive layer, the elastic tape and the adhesive layer are stacked, and an unfolded area of ​​the fixing patch is larger than an area of ​​the stoma base plate.

[0025] Compared with the prior art, the present application provides an auxiliary fixing structure for an indwelling T-tube. When the present invention is used, the indwelling T-tube is first moved from the avoidance gap into the bending limit through hole. Then the stoma chassis is pasted on the skin around the stoma of the patient's abdomen through the adhesive surface. The bending limit through hole is bent at a preset angle to bend the indwelling T-tube, thereby effectively avoiding scratches from items such as clothing, and preventing the indwelling T-tube from shaking and falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic diagram of the overall structure of an indwelling T-tube auxiliary fixation structure provided in this embodiment;

[0028] Figure 2 This is an exploded schematic diagram of the overall structure of an indwelling T-tube auxiliary fixation structure provided in this embodiment;

[0029] Figure 3 This is a partial structural schematic diagram of an indwelling T-tube auxiliary fixation structure provided in this embodiment;

[0030] Figure 4 yes Figure 2 An enlarged schematic diagram of the area marked B in the middle;

[0031] Figure 5 This is a schematic structural diagram of an arc-shaped stopper for a T-tube auxiliary fixing structure provided in this embodiment;

[0032] Figure 6 is another structural schematic diagram of an indwelling T-tube auxiliary fixation structure provided in this embodiment;

[0033] Figure 7 It is a structural schematic diagram of a fixing patch for a T-tube auxiliary fixing structure provided in this embodiment.

[0034] In the figure: 1. stoma chassis; 11. adhesive surface; 111. medical double-sided adhesive layer; 12. limiting surface; 13. avoidance gap; 14. chassis inner ring; 141. structural reinforcement; 15. chassis outer ring; 2. arc-shaped limiting member; 21. bending limiting through hole; 22. first limiting section; 23. second limiting section; 3. limiting cover; 31. anti-slip layer; 4. fixing patch; 41. elastic tape; 42. adhesive layer. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In addition, the technical features involved in the different embodiments of the utility model described above can be combined with each other as long as they do not conflict with each other.

[0039] The utility model provides Figure 1 , Figure 2 and Figure 7As shown, a T-tube auxiliary fixing structure is used to fix the T-tube, prevent the T-tube from shaking and falling off, and avoid being scratched by clothing and other items. Its main structure includes: a stoma base 1, an arc-shaped limiter 2 and a limiter cover 3. The stoma base 1 has an opposite adhesive surface 11 and a limiter surface 12, and the adhesive surface 11 is used to adhere to the patient's skin; one end of the arc-shaped limiter 2 is connected to the limiter surface 12; the limiter cover 3 is detachably connected to the arc-shaped limiter 2, and a bending limiter through hole 21 is provided between the limiter cover 3 and the arc-shaped limiter 2. The bending limiter through hole 21 passes through the stoma base 1, and the bending limiter through hole 21 is bent at a preset angle and used to fix the indwelling T-tube. In order to prevent the indwelling T-tube from protruding and being scratched by clothing, the arc-shaped limiter 2 in this embodiment is bent at a preset angle so that the bending limiter through hole 21 is bent at a preset angle. The preset angle in this embodiment is set to be less than or equal to ninety degrees. Preferably, the preset angle is less than or equal to ninety degrees. The inner diameter of the bending limit through hole 21 matches the outer diameter of the indwelling T-tube, so that the indwelling T-tube can be firmly fixed. In some embodiments, the limit cover 3 is connected to the arc-shaped limit member 2 by a buckle.

[0040] Furthermore, the stoma base plate 1 is provided with an avoidance gap 13, which extends to the bending limit through hole 21, and the avoidance gap 13 is used to avoid the indwelling T-tube. When in use, the limit cover 3 is first opened, and then the indwelling T-tube is moved into the bending limit through hole 21 from the avoidance gap 13. Subsequently, the stoma base plate 1 is pasted on the skin around the stoma of the patient's abdomen through the adhesive surface 11, and after the stoma base plate 1 is positioned and pasted, the limit cover 3 is covered to allow the indwelling T-tube to extend along the extension direction of the bending limit through hole 21. Among them, the bending limit through hole 21 is bent at a preset angle to allow the indwelling T-tube to bend, thereby effectively avoiding scratches from items such as clothing, and preventing the indwelling T-tube from shaking and falling off.

[0041] It should be noted that some patients wearing indwelling T-tubes may experience uncomfortable pulling or pain during their daily activities due to poor fixation, and the tubes may shake in the tube lumen. Patients with long-term indwelling T-tubes are afraid of the tubes coming off and are very cautious with every movement. Even during sleep, they have to be careful not to press on the drainage tubes, causing the T-tubes to twist and become blocked, or come off accidentally. This seriously reduces the patients' quality of life after surgery and may even lead to infections.

[0042] Traditionally, an open gauze block or a trimmed ordinary gauze block is used to cover the indwelling T-tube opening to fix the indwelling T-tube. Although this fixing method is simple, fast and low-cost, it cannot effectively prevent the indwelling T-tube from shaking or falling off.

[0043] When the utility model is used, the indwelling T-tube is first moved into the bending limit through hole 21 from the avoidance notch 13. Then the stoma base plate 1 is attached to the skin around the stoma of the patient's abdomen through the adhesive surface 11. The bending limit through hole 21 is bent at a preset angle to bend the indwelling T-tube, thereby effectively avoiding scratches from clothing and other objects, and preventing the indwelling T-tube from shaking and falling off.

[0044] Furthermore, if Figure 2 and Figure 5 As shown, the arc-shaped limiting member 2 includes: a first limiting segment 22 and a second limiting segment 23, one end of the first limiting segment 22 is connected to the limiting surface 12; the second limiting segment 23 is connected to the first limiting segment 22 at a preset angle, such as Figure 2 and Figure 4 As shown, the first limiting section 22 extends in a direction perpendicular to the limiting surface 12, and a section of the second limiting section 23 away from the first limiting section 22 extends in a direction parallel to the limiting surface 12. The first limiting section 22 is connected to the second limiting section 23 by a preset arc; wherein the first limiting section 22, the second limiting section 23 and the stoma base plate 1 are integrally formed. wherein the first limiting section 22 first leads out the indwelling T-tube, and then bends the indwelling T-tube through the bending portion between the first limiting section 22 and the second limiting section 23, so that the indwelling T-tube extends along the extension direction of the second limiting section 23. prevent the indwelling T-tube from shaking significantly when it scrapes against clothing, and prevent the indwelling T-tube from pulling the patient's abdominal stoma.

[0045] Furthermore, the pipe section of the second limiting section 23 away from the first limiting section 22 can be made of an elastic material structure, so that the pipe section of the second limiting section 23 away from the first limiting section 22 has a certain buffering effect, so that the exposed indwelling T-tube has a certain degree of buffering when rubbed by clothes, avoiding excessive vibration to the stoma base plate 1, and reducing the patient's pain.

[0046] Furthermore, the preset angle is less than or equal to 90°. By configuring the preset angle a between the first limiting segment 22 and the second limiting segment 23 to be less than or equal to 90°, the indwelling T-tube segment extending from the stoma of the patient can change the extension direction. The indwelling T-tube segment outside the body can be extended along the surface of the patient's abdominal skin. This can prevent the indwelling T-tube segment from protruding directly and rubbing against clothing, thereby causing pain to the patient's abdomen.

[0047] Furthermore, if Figure 2 As shown, the limit cover 3 extends from the first limit section 22 to the second limit section 23, and the limit cover 3 is clamped on the first limit section 22 and the second limit section 23; the bent limit through hole 21 extends from the first limit section 22 to the second limit section 23. That is, the limit cover 3 and the arc limit member 2 are combined to form an L-shaped tube.

[0048] Furthermore, if Figure 2 and Figure 4 As shown, the position of the limit cover 3 corresponding to the bending limit through hole 21 and the position of the arc-shaped limit member 2 corresponding to the bending limit through hole 21 are both provided with an anti-skid layer 31, and the bending limit through hole 21 is sleeved with the retained T-tube through the anti-skid layer 31. The anti-skid layer 31 has an anti-skid effect. The limit cover 3 and the arc-shaped limit member 2 have the function of changing the extension direction of the retained T-tube while firmly fixing the retained T-tube through the anti-skid layer 31, so as to prevent the retained T-tube from being pulled out due to external friction and pulling.

[0049] Furthermore, if Figure 2 and Figure 4 As shown, the anti-skid layer 31 is an anti-skid rubber layer, and the anti-skid rubber layer is arranged on the inner wall of the bending limit through hole 21. The anti-skid rubber layer has a better friction coefficient. There is a large friction between the anti-skid rubber layer and the indwelling T-tube made of soft rubber material. The indwelling T-tube can be effectively prevented from sliding in the bending limit through hole 21. It can be understood that in this embodiment, the aperture size of the bending limit through hole 21 is slightly larger than the outer diameter size of the indwelling T-tube. Under the superposition of the anti-skid rubber layer, the aperture size of the bending limit through hole 21 is smaller than the outer diameter size of the indwelling T-tube. Through the interference fit connection method, the anti-skid rubber layer is firmly sleeved on the outer surface of the indwelling T-tube. In this way, the effect of fixing the indwelling T-tube is achieved.

[0050] Furthermore, if Figure 2 and Figure 3 As shown, the stoma base plate 1 includes a base plate inner ring 14 and a base plate outer ring 15, the base plate inner ring 14 is arranged in the middle of the base plate outer ring 15, and the base plate outer ring 15 is a silicone ring;

[0051] In some embodiments, a structural reinforcement member 141 is provided between the chassis inner ring 14 and the arc-shaped limiter 2 , and the structural reinforcement member 141 is used to connect and support the arc-shaped limiter 2 .

[0052] It should be noted that the silicone ring has good elasticity and can be deformed to a certain extent according to the surface morphology of the patient's abdominal skin. This ensures that the stoma base plate 1 can be firmly attached to the patient's abdomen for a long time. The inner ring 14 of the base plate is configured as a material structure with a harder texture. In order to ensure the structural strength between the inner ring 14 of the base plate and the arc-shaped limiter 2, the arc-shaped limiter 2 and the limiter cover 3 can firmly fix the indwelling T-tube. A structural reinforcement 141 is provided between the inner ring 14 of the base plate and the arc-shaped limiter 2 to further increase the structural strength of the arc-shaped limiter 2. Prevent the indwelling T-tube from touching the stoma in the patient's abdomen when being pulled. Improve the safety of the stoma base plate 1.

[0053] Furthermore, the arc-shaped stopper 2 is arranged on the chassis inner ring 14 , and the arc-shaped stopper 2 and the chassis inner ring 14 are integrally formed to ensure the overall structural stability of the stoma chassis 1 .

[0054] Furthermore, if Figure 2 As shown, the stoma base plate 1 is a silicone disc, and a medical double-sided adhesive layer 111 is provided on the adhesive surface 11. The stoma base plate 1 is adhered to the abdominal skin of the patient through the medical double-sided adhesive layer 111.

[0055] Furthermore, if Figure 6 and Figure 7 As shown, the stoma base plate 1 is connected to a fixing patch 4 , which includes an elastic tape 41 and an adhesive layer 42 . The elastic tape 41 and the adhesive layer 42 are stacked, and the unfolded area of ​​the fixing patch 4 is larger than the area of ​​the stoma base plate 1 .

[0056] The fixing patch 4 can further improve the stability of the stoma base plate 1 and prevent the stoma base plate 1 from loosening during long-term use.

[0057] In some embodiments, the fixing patch 4 can be configured as a muscle patch. The muscle patch, also known as an intramuscular adhesive patch, is an auxiliary treatment tool widely used in the fields of sports medicine and rehabilitation. Through the elastic retraction force of the patch on the muscle patch, a certain pulling force is generated on the muscle, which helps the muscle to contract better and improves the strength and function of the muscle. For example, when an athlete is sprinting, the muscle patch attached to the thigh muscle can enhance the explosive power of the muscle and increase the running speed. This patent uses a muscle patch around the abdomen to properly fix the above indwelling T-tube auxiliary fixing structure so that it does not shift when the patient runs or other exercises, and the muscle patch is not affected by the patient's sweating. Even if the patient sweats profusely, the above indwelling T-tube auxiliary fixing structure can still be firmly fixed and will not shift. By adjusting the tension and direction of the patch, a certain support and decompression effect is generated on the painful area. Therefore, the use of a fixing patch 4 ring-reinforced stoma dressing can enable patients to carry out daily activities without worrying about the tube falling off.

[0058] The exudate from the indwelling T-tube orifice is generally small, so the dressing is usually changed every 3 to 7 days. The sudden increase in exudate indicates that the indwelling T-tube orifice has an abnormal condition such as infection or bile leakage. In some embodiments, a liquid sensor is provided on the stoma base plate 1. The liquid sensor is used for detection. The liquid sensor is provided in the bending limit through hole 21 on the stoma base plate 1. The liquid exudate from the stoma of the patient's abdomen is detected by the liquid sensor. The stoma base plate 1 is also provided with a signal sending device, which is electrically connected to the liquid sensor. When the exudate from the patient's abdominal stoma reaches a preset liquid level, the patient or medical staff is notified to pay attention to whether the indwelling T-tube drainage port has an abnormal condition such as infection, and the entire fixed structure is cleaned or replaced in time to timely discover and stop the occurrence and spread of complications.

[0059] In summary, the present application provides an auxiliary fixing structure for an indwelling T-tube. When the present invention is used, the indwelling T-tube is first moved from the avoidance notch 13 into the bending limit through hole 21. Then the stoma base plate 1 is adhered to the skin around the stoma of the patient's abdomen through the adhesive surface 11. The bending limit through hole 21 is bent at a preset angle to bend the indwelling T-tube, thereby effectively avoiding scratches from items such as clothing and preventing the indwelling T-tube from shaking or falling off.

[0060] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A T-tube auxiliary fixation structure, characterized in that: include: A stoma base plate, the stoma base plate having an adhesive surface and a limiting surface opposite to each other, the adhesive surface being used for bonding to the patient's skin; An arc-shaped limiting member, one end of which is connected to the limiting surface; A limit cover, wherein the limit cover is detachably connected to the arc-shaped limit piece, a bending limit through hole is provided between the limit cover and the arc-shaped limit piece, the bending limit through hole passes through the stoma bottom plate, and the bending limit through hole is bent at a preset angle and is used to fix the indwelling T-tube; Among them, the stoma bottom plate is provided with an avoidance gap, the avoidance gap extends to the bending limit through hole, and the avoidance gap is used to avoid the indwelling T-tube.

2. The indwelling T-tube auxiliary fixation structure according to claim 1, characterized in that: The arc-shaped limiting member comprises: A first limiting section, one end of which is connected to the limiting surface; a second limiting section, wherein the second limiting section is connected to the first limiting section at the preset angle; Wherein, the first limiting section, the second limiting section and the stoma bottom plate are integrally formed.

3. The indwelling T-tube auxiliary fixation structure according to claim 2, characterized in that: The preset angle is less than or equal to 90°, and the inner diameter of the bending limit through hole matches the outer diameter of the indwelling T-tube.

4. The indwelling T-tube auxiliary fixation structure according to claim 2, characterized in that: The limit cover extends from the first limit section to the second limit section, and the limit cover is clamped on the first limit section and the second limit section; the bent limit through hole extends from the first limit section to the second limit section.

5. The indwelling T-tube auxiliary fixation structure according to claim 1, characterized in that: The position of the limit cover corresponding to the bending limit through hole and the position of the arc-shaped limit piece corresponding to the bending limit through hole are both provided with an anti-slip layer, and the bending limit through hole is sleeved with a retained T-tube through the anti-slip layer.

6. The indwelling T-tube auxiliary fixation structure according to claim 5, characterized in that: The anti-skid layer is an anti-skid rubber layer, and the anti-skid rubber layer is arranged on the inner side wall of the bending limiting through hole.

7. The indwelling T-tube auxiliary fixation structure according to claim 1, characterized in that: The stoma base plate comprises a base plate inner ring and a base plate outer ring, wherein the base plate inner ring is arranged in the middle of the base plate outer ring, and the base plate outer ring is a silicone ring; Wherein, a structural reinforcement is provided between the inner ring of the chassis and the arc-shaped limiting member, and the structural reinforcement is used to connect and support the arc-shaped limiting member.

8. The indwelling T-tube auxiliary fixation structure according to claim 7, characterized in that: The arc-shaped limiting member is arranged on the inner ring of the chassis, and the arc-shaped limiting member and the inner ring of the chassis are integrally formed.

9. The indwelling T-tube auxiliary fixation structure according to claim 1, characterized in that: The stoma bottom plate is a silica gel disc, and a medical double-sided adhesive layer is arranged on the adhesive surface.

10. The indwelling T-tube auxiliary fixation structure according to claim 1, characterized in that: The stoma base plate is connected with a fixing patch, which includes an elastic adhesive tape and an adhesive layer. The elastic adhesive tape and the adhesive layer are stacked, and the unfolded area of ​​the fixing patch is larger than the area of ​​the stoma base plate.

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