Medical ostomy bag

Abstract

The application provides a medical ostomy bag, which comprises a bag body, a liquid inlet is formed in the upper side of the bag body, and a liquid discharge pipe is fixedly arranged on the lower side of the bag body; a clamping and locking mechanism is arranged on the liquid inlet, and the clamping and locking mechanism comprises a bottom ring, clamping blocks, an adjusting part and an elastic assembly; the bottom ring is fixedly arranged on the liquid inlet; the number of the clamping blocks is several; the clamping blocks are slidably arranged on the end face of the bottom ring; the clamping blocks are symmetrically distributed on the end face of the bottom ring; the adjusting part is rotatably arranged on the bottom ring; when the adjusting part is rotated clockwise and counterclockwise, the clamping blocks can synchronously and relatively slide radially to gather and separate; and the elastic assembly can keep the clamping blocks in a central gathering state; and a liquid discharge mechanism is arranged on the liquid discharge pipe and used for controlling the opening and closing of the liquid discharge pipe. The technical problem that the installation steps of a drainage tube and the ostomy bag are complicated and the ostomy bag is inconvenient to disassemble can be solved.

Description

Technical Field

[0001] This invention relates to the field of ostomy bag technology, and more specifically to a medical ostomy bag. Background Technology

[0002] In clinical nursing practice, connecting drainage tubes to ostomy bags is a common need, especially when patients have both postoperative drainage and an enterostomy, requiring proper connection of the drainage tube to the ostomy bag to collect drainage fluid. In routine use, nurses typically employ various temporary methods to establish the connection. One common practice is to directly wrap and secure the drainage tube outlet to the opening edge of the ostomy bag using medical tape. Another method is to utilize the pre-cut opening on the ostomy bag, insert the drainage tube, and then fill and cover the area around the tube with leak-proof paste or additional adhesive sheets to attempt a seal. Additionally, some simple adapters exist, with one end fitted to the drainage tube and the other end glued to the ostomy bag opening. These existing connection methods generally suffer from drawbacks such as cumbersome procedures and reliance on the nurse's personal experience and skills. The connection process often requires multiple applications of adhesive, smearing, and pressing, making it difficult to ensure a reliable seal on the first attempt; furthermore, disassembly is inconvenient, such as when changing the drainage tube. Therefore, a medical ostomy bag is provided to address these issues. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the present invention proposes a medical ostomy bag to solve the technical problems of complicated installation steps and inconvenient disassembly between the drainage tube and the ostomy bag in the existing technology.

[0004] The technical solution adopted in this invention is a medical ostomy bag, comprising: The bag body has a liquid inlet on its upper side and a drain pipe fixed on its lower side. A clamping mechanism is installed at the liquid inlet. The clamping mechanism includes a bottom ring, clamping blocks, an adjusting member, and an elastic component. The bottom ring is fixed at the liquid inlet. There are several clamping blocks, all of which are slidably disposed on the end face of the bottom ring. The clamping blocks are centrally symmetrically distributed on the end face of the bottom ring. The adjusting member is rotatably installed on the bottom ring. When the adjusting member rotates clockwise and counterclockwise, it enables the clamping blocks to synchronously and radially converge and diverge relative to the bottom ring. The elastic component enables the clamping blocks to maintain a centrally converged state. A drainage mechanism, installed on the drainage pipe, is used to control the opening and closing of the drainage pipe.

[0005] In a preferred embodiment, the adjusting member includes an adjusting cover and an adjusting ring. The adjusting cover is rotatably disposed on the bottom ring and has an inlet. The adjusting ring is fixed inside the adjusting cover and has a plurality of centrally symmetrically distributed progressive arc grooves. The clamping block has an adjusting block fixedly disposed thereon, and the adjusting block is slidably connected to the progressive arc grooves.

[0006] In a preferred embodiment, the bottom ring is fixedly provided with a fixing ring, and an installation groove is provided between the fixing ring and the bottom ring. A plurality of clamping blocks are placed inside the installation groove. The fixing ring has a plurality of centrally symmetrically distributed sliding grooves. The clamping block is fixedly provided with a slider that is slidably connected to the sliding groove. The adjusting block is fixedly provided on the end face of the slider and is fixedly provided to the clamping block through the slider.

[0007] In a preferred embodiment, a plurality of centrally symmetrically distributed progressive arc blocks are fixed on the inner end face of the adjusting cover. The progressive arc blocks are adapted to the progressive arc groove in terms of position and shape. The thickness of the progressive arc blocks gradually increases from the outside to the inside in the radial direction relative to the adjusting cover. There is a gap between the adjusting cover and the bottom ring at the rotation point, that is, the distance between the adjusting cover and the bottom ring can be adaptively adjusted.

[0008] In a preferred embodiment, the adjusting cover is connected to a dust plug adapted to the inlet.

[0009] In a preferred embodiment, the elastic component includes an arc-shaped groove seat, an arc-shaped spring, and a return block. The arc-shaped groove seat is fixed to the end face of the bottom ring, the return block is fixed to the outside of the adjusting cover, the return block is slidably disposed inside the arc-shaped groove seat, the arc-shaped spring is disposed inside the arc-shaped groove seat, one end of the arc-shaped spring is fixedly connected to one end inside the arc-shaped groove seat, and the other end of the arc-shaped spring is fixedly connected to the return block.

[0010] In a preferred embodiment, the drainage mechanism includes: A switching pipe is fixed to the drain pipe, and the switching pipe is connected to the drain pipe; A slidable and sealing plug is provided in the slidable and sealing pipe; A reset spring is fixed between one end of the on / off plug and the inner end face of the on / off tube.

[0011] In a preferred embodiment, a stepped slide rod is fixed at the other end of the switch, and the stepped slide rod passes through the switch pipe.

[0012] In a preferred embodiment, the draining mechanism further includes a foolproof component, which includes a pin and a foolproof cover. The pin is slidably disposed inside the draining pipe along the axial direction of the draining pipe. The bottom of the plug has a slot that matches the pin. The foolproof cover is threadedly disposed at the opening of the draining pipe.

[0013] In a preferred embodiment, the pin is a right trapezoid.

[0014] As can be seen from the above technical solution, the beneficial technical effects of the present invention are as follows: When connecting the drainage tube to the ostomy bag, simply rotate the adjusting component to cause several clamping blocks to separate radially. Insert the drainage tube into the opening of the adjusting component and then release the adjusting component. The elastic component will then reset the adjusting component, causing the clamping blocks to converge radially and securely clamp the drainage tube at the inlet. No additional tape or leak-proof sealant is required. The operation is simple and does not rely on the experience or skills of nursing staff. Once connected, a reliable clamping and sealing effect is achieved. When the drainage tube needs to be removed or replaced, simply rotate the adjusting component again to separate the clamping blocks and pull out the drainage tube. Disassembly is very convenient and effectively solves the problems of cumbersome installation and inconvenient disassembly in existing connection methods. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the structure of a medical ostomy bag according to the present invention; Figure 2 This is an exploded cross-sectional view of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle; Figure 5 This is a schematic cross-sectional view of the clamping mechanism in this invention. Figure 1 ; Figure 6 This is a schematic cross-sectional view of the clamping mechanism in this invention. Figure 2 ; Figure 7 This is a schematic cross-sectional view of the adjusting component in this invention; Figure 8This is a schematic cross-sectional view of the overall structure of the clamping mechanism in this invention; Figure label: Bag body 1, liquid inlet 11, drain pipe 12; Bottom ring 21, clamping block 22, adjusting component 23; Adjusting cover 231, inlet 2311, progressive arc block 2312, dust plug 2313, adjusting ring 232, progressive arc groove 2321, adjusting block 233; 24 fixed ring, 241 mounting groove, 242 sliding groove, 243 slider; Arc-shaped slot seat 25, arc-shaped spring 251, return block 252; 31. Continuous / switching pipe, 32. Continuous / switching plug, 321. Stepped slide bar, 33. Return spring, 34. Pin, 341. Slot, 35. Anti-fool cover. Detailed Implementation

[0017] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0018] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by those skilled in the art to which this invention pertains.

[0019] Example: like Figure 1-2 As shown, this embodiment provides a medical ostomy bag, including a bag body 1, a clamping mechanism, and a drainage mechanism. The bag body 1 has an inlet 11 on its upper side and a drainage pipe 12 fixed on its lower side. The clamping mechanism is installed at the inlet 11 and includes a bottom ring 21, clamping blocks 22, an adjusting member 23, and an elastic component. The bottom ring 21 is fixed at the inlet 11. Several clamping blocks 22 are slidably disposed on the end face of the bottom ring 21, and are centrally symmetrically distributed on the end face of the bottom ring 21. The adjusting member 23 is rotatably installed on the bottom ring 21. When the adjusting member 23 rotates clockwise and counterclockwise, it enables the clamping blocks 22 to synchronously and radially converge and diverge relative to the bottom ring 21. The elastic component allows the clamping blocks 22 to remain centrally converged. The drainage mechanism is installed on the drainage pipe 12 and is used to control the opening and closing of the drainage pipe 12. The clamping block 22 has sealing silicone on its inner and outer sides, which improves the sealing of the drainage tube. Due to the deformation capability of the silicone, the clamping mechanism can adapt to drainage tubes of different diameters within a small range. A cleaning port with a sealing cap is provided on the upper side of the bag body 1. The cleaning port allows the bag body 1 to be cleaned, preventing excessive residue from adhering to the drain tube 12 and preventing bacteria from growing in the bag body 1 during long-term storage.

[0020] The bag body 1 is sealed to the drainage tube by a clamping mechanism connected to the inlet 11, which enables the collection of drainage fluid from the patient's body and prevents leakage of drainage fluid from contaminating the skin or clothing. At the same time, the drainage mechanism is installed on the drainage tube 12, which can flexibly control the opening and closing of the drainage tube 12, making it convenient for medical staff or patients to regularly drain the drainage fluid collected in the bag body 1, reducing the trouble of frequent replacement of the bag body 1 and improving the convenience of use. The bottom ring 21 of the clamping mechanism is fixed at the inlet 11. It is equipped with several clamping blocks 22 that are centrally symmetrically distributed and slidably disposed on the end face of the bottom ring 21. By rotating the adjusting component 23, the clamping blocks 22 can be synchronously radially gathered or separated, which facilitates quick sealing and clamping of the drainage tube. The elastic component can keep the clamping blocks 22 in a centrally gathered state, ensuring that the clamping blocks 22 are tightly attached to the drainage tube, effectively preventing the drainage fluid from leaking from the connection between the inlet 11 and the drainage tube, ensuring the sealing and safety of use. The bag body 1 can stably contain the drainage fluid, and the setting of the drain pipe 12 makes the drainage fluid discharge more convenient and improves the operating efficiency of medical staff.

[0021] In one embodiment, such as Figure 5 , 7 As shown in Figure 8, the adjusting component 23 includes an adjusting cover 231 and an adjusting ring 232. The adjusting cover 231 is rotatably mounted on the bottom ring 21 and has an inlet 2311. The adjusting ring 232 is fixed inside the adjusting cover 231 and has several centrally symmetrically distributed progressive arc grooves 2321. The clamping block 22 is fixed with an adjusting block 233, which is slidably connected to the progressive arc grooves 2321. The adjusting cover 231 is connected to a dust plug 2313 that matches the inlet 2311. After the entire device is manufactured, the dust plug 2313 can seal the ostomy bag to prevent dust and impurities from entering it.

[0022] The adjusting component 23 enables precise docking and clamping of the drainage tube with several clamping blocks 22. The adjusting cover 231 is rotatably mounted on the bottom ring 21, and its inlet 2311 facilitates the smooth passage of the drainage tube into the bag body 1. The adjusting ring 232 is fixed inside the adjusting cover 231. Several centrally symmetrically distributed progressive arc grooves 2321 on the adjusting ring 232 are slidably connected to the adjusting blocks 233 on the clamping blocks 22. When the adjusting component 23 is rotated, the adjusting ring 232 rotates synchronously with the adjusting cover 231. The progressive arc grooves 2321 push the adjusting blocks 233 to drive the clamping blocks 22 to move radially together or separate synchronously, thereby achieving the clamping and fixing or loosening and disassembling of the drainage tube. The progressive arc grooves 2321 are centrally symmetrically distributed, which ensures that several adjusting blocks 233 drive the clamping blocks 22 to move synchronously, making the clamping force of the clamping blocks 22 on the drainage tube uniform and avoiding leakage due to insecure clamping.

[0023] In one embodiment, such as Figure 6 , 8As shown, a fixing ring 24 is fixedly mounted on the bottom ring 21. A mounting groove 241 is provided between the fixing ring 24 and the bottom ring 21. Several clamping blocks 22 are placed inside the mounting groove 241. The fixing ring 24 has several centrally symmetrically distributed sliding grooves 242. A slider 243 is fixedly mounted on the clamping block 22 and slidably connected to the sliding groove 242. An adjusting block 233 is fixedly mounted on the end face of the slider 243 and is fixed to the clamping block 22 through the slider 243. The fixed connection between the adjusting block 233 and the slider 243 can reduce the radial area occupied by the component, thereby reducing the radial volume of the component, optimizing the overall structural dimensions at the liquid inlet 11, and adjusting the position of the sliding part of the clamping block 22 so that it is placed between the clamping block 22 and the adjusting part 23.

[0024] Several clamping blocks 22 are placed inside the mounting groove 241 to install the component. The clamping blocks 22 are fixed to the slider 243 and the slider 243 slides with the groove 242, thereby constraining the radial sliding trajectory of the clamping blocks 24. At the same time, the position of the sliding limit part of the clamping blocks 22 is adjusted so that the sliding force structure is arranged between the clamping blocks 22 and the adjusting member 23, making the transmission connection smoother and more stable.

[0025] In one embodiment, a plurality of centrally symmetrically distributed progressive arc blocks 2312 are fixed on the inner end face of the adjusting cover 231. The progressive arc blocks 2312 and the progressive arc grooves 2321 are matched in position and shape. The thickness of the progressive arc blocks 2312 gradually increases from the outside to the inside in the radial direction relative to the adjusting cover 231. There is a gap between the adjusting cover 231 and the bottom ring 24 at the rotation point, that is, the gap between the adjusting cover 231 and the bottom ring 24 can be adaptively adjusted. So when the progressive arc grooves 2321 push the clamping block 22 to move, the progressive arc blocks 2312 can push and squeeze the adjusting block 233, thereby increasing the sealing degree between the clamping block 22 and the bottom ring 21.

[0026] When the progressive arc groove 2321 pushes the clamping block 22 to move, the progressive arc block 2312 can simultaneously press against the adjusting block 233, which can form an axial pressing force on the clamping block 22, bringing the clamping block 22 closer to the bottom ring 21 and effectively improving the sealing degree between the clamping block 22 and the bottom ring 21. The progressive arc block 2312 with a gradually varying thickness can smoothly apply the pressing force as the adjusting cover 231 rotates, and the force on each adjusting block 233 is balanced without local stress concentration. The progressive arc block 2312 and the progressive arc groove 2321 cooperate to form a linkage transmission structure, which achieves axial sealing and pressing compensation while controlling the radial opening and closing of the clamping block 22. It can automatically compensate for the assembly gaps of the components and the small deformation gaps generated during use, continuously maintain the sealing effect at the connection of the inlet 11, prevent waste liquid leakage, and make the overall rotation adjustment process smooth and stable, improving the stability and sealing reliability of the ostomy bag after it is connected to the drainage tube.

[0027] In one embodiment, such as Figure 3 As shown, the elastic component includes an arc-shaped groove seat 25, an arc-shaped spring 251, and a return block 252. The arc-shaped groove seat 25 is fixed to the end face of the bottom ring 21, and the return block 252 is fixed to the outside of the adjusting cover 231. The return block 252 is slidably disposed inside the arc-shaped groove seat 25. The arc-shaped spring 251 is placed inside the arc-shaped groove seat 25. One end of the arc-shaped spring 251 is fixedly connected to one end inside the arc-shaped groove seat 25, and the other end of the arc-shaped spring 251 is fixedly connected to the return block 252.

[0028] The arc-shaped groove seat 25 is fixed to the end face of the bottom ring 21 to provide a space for the arc-shaped spring 251 and the return block 252 to accommodate and slide. The return block 252 is slidably disposed inside the arc-shaped groove seat 25 and can follow the adjustment cover 231 to make a circumferential arc-shaped sliding motion. The arc-shaped spring 251 can generate a continuous pushing force on the return block 252 by means of its own elastic deformation, thereby driving the adjustment cover 231 to automatically rotate and reset. This drives the clamping block 22 to maintain a centrally converged clamping posture under normal conditions, which is suitable for the long-term clamping and fixing requirements of the drainage tube. The adjustment cover 231 can be automatically returned and locked without manual assistance, and a constant clamping pre-tightening force is continuously provided to the clamping block 22 to ensure that the drainage tube docking position is always in close contact and sealed.

[0029] In one embodiment, such as Figure 4 As shown, the drainage mechanism includes a switching pipe 31, a switching plug 32, and a return spring 33. The switching pipe 31 is fixed to the drainage pipe 12 and is connected to the drainage pipe 12. The switching plug 32 is slidably and sealingly disposed on the switching pipe 31. The return spring 33 is fixed between one end of the switching plug 32 and the inner end face of the switching pipe 31. A stepped slide rod 321 is fixed to the other end of the switching plug 32 and passes through the switching pipe 31.

[0030] The on / off plug 32 is slidably sealed inside the on / off tube 31 and can slide axially to open and close the flow channel of the drain pipe 12. The return spring 33 is set between one end of the on / off plug 32 and the inner end face of the on / off tube 31 and can continuously provide elastic holding force. The other end of the on / off plug 32 is fixedly provided with a stepped slide rod 321, which passes through the outside of the on / off tube 31, so that the user can manually press and operate the axial movement of the on / off plug 32. The stepped structure of the stepped slide rod 321 can limit the sliding stroke of the on / off plug 32 to prevent the on / off plug 32 from sliding out of place. The tight sealing and sliding cooperation between the on / off plug 32 and the inner wall of the on / off tube 31 can effectively prevent the waste liquid inside the drain pipe 12 from leaking out from the joint gap. Pressing the stepped slide rod 321 can push the on / off plug 32 to compress the return spring 33 to open the drain channel. After releasing the external force, the return spring 33 can automatically push the on / off plug 32 to reset and close the flow channel without manual reset operation.

[0031] In one embodiment, the drainage mechanism further includes a foolproof component, which includes a pin 34 and a foolproof cover 35. The pin 34 is slidably disposed inside the drainage pipe 12 along the axial direction. The bottom of the plug 32 has a slot 341 adapted to the pin 34. The foolproof cover 35 is threadedly disposed at the opening of the drainage pipe 12. The pin 34 is a right-angled trapezoid. The pin 34 is slidably installed inside the drainage pipe 12 via a cross bracket, and the pin 34 slides through the middle of the cross bracket without affecting the flow of liquid.

[0032] A foolproof component is installed at the drain pipe 12 to lock the on / off plug 32, preventing accidental opening and leakage of waste liquid. The pin 34 slides axially within the drain pipe 12. A slot 341 is provided at the bottom of the on / off plug 32, and the slot 341 and pin 34 are structurally compatible. The pin 34 is a right-angled trapezoid, forming a one-way guiding and locking structure to prevent it from sliding downwards due to its own weight. When the foolproof cover 35 is removed, pressing the stepped slide bar 321 will push the pin 34 downwards, disengaging it from the slot 341. The foolproof cover 35 is threaded and rotates at the drain pipe 12 opening, providing dust protection and shielding. Its threaded rotation also limits the travel and releases the pin 34. When the foolproof cover 35 is tightened, it pushes the pin 34 into the slot 341, locking it in place.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A medical ostomy bag, characterized in that, include: The bag body (1) has an inlet (11) on its upper side and a drain pipe (12) fixed on its lower side. A clamping mechanism is installed at the liquid inlet (11). The clamping mechanism includes a bottom ring (21), clamping blocks (22), an adjusting member (23), and an elastic component. The bottom ring (21) is fixed at the liquid inlet (11). There are several clamping blocks (22). Several clamping blocks (22) are slidably disposed on the end face of the bottom ring (21). Several clamping blocks (22) are centrally symmetrically distributed on the end face of the bottom ring (21). The adjusting member (23) is rotatably installed on the bottom ring (21). When the adjusting member (23) rotates clockwise and counterclockwise, it enables several clamping blocks (22) to synchronously and radially converge and diverge relative to the bottom ring (21). The elastic component enables several clamping blocks (22) to maintain a central convergence state. A draining mechanism is installed on the drain pipe (12) and is used to control the opening and closing of the drain pipe (12).

2. The medical ostomy bag according to claim 1, characterized in that, The adjusting component (23) includes an adjusting cover (231) and an adjusting ring (232). The adjusting cover (231) is rotatably mounted on the bottom ring (21). The adjusting cover (231) has an inlet (2311). The adjusting ring (232) is fixed inside the adjusting cover (231). The adjusting ring (232) has a plurality of centrally symmetrically distributed progressive arc grooves (2321). The clamping block (22) has an adjusting block (233) fixedly mounted on it. The adjusting block (233) is slidably connected to the progressive arc grooves (2321).

3. A medical ostomy bag according to claim 2, characterized in that, The bottom ring (21) is fixed with a fixing ring (24), and a mounting groove (241) is provided between the fixing ring (24) and the bottom ring (21). Several clamping blocks (22) are placed inside the mounting groove (241). The fixing ring (24) has several centrally symmetrically distributed sliding grooves (242). The clamping block (22) is fixed with a slider (243) that is slidably connected to the sliding groove (242). The adjusting block (233) is fixed on the end face of the slider (243). The adjusting block (233) is fixed to the clamping block (22) through the slider (243).

4. A medical ostomy bag according to claim 3, characterized in that, The inner end face of the adjusting cover (231) is fixed with a number of centrally symmetrically distributed progressive arc blocks (2312). The progressive arc blocks (2312) and the progressive arc groove (2321) are matched in position and shape. The thickness of the progressive arc blocks (2312) gradually increases from the outside to the inside in the radial direction relative to the adjusting cover (231). There is a gap between the adjusting cover (231) and the bottom ring (24) at the rotation point, that is, the distance between the adjusting cover (231) and the bottom ring (24) can be adaptively adjusted.

5. A medical ostomy bag according to claim 2, characterized in that, The adjusting cover (231) is connected to a dust plug (2313) that is compatible with the inlet (2311).

6. A medical ostomy bag according to claim 1, characterized in that, The elastic component includes an arc-shaped groove seat (25), an arc-shaped spring (251), and a return block (252). The arc-shaped groove seat (25) is fixed to the end face of the bottom ring (21), the return block (252) is fixed to the outside of the adjusting cover (231), the return block (252) is slidably disposed inside the arc-shaped groove seat (25), the arc-shaped spring (251) is placed inside the arc-shaped groove seat (25), one end of the arc-shaped spring (251) is fixedly connected to one end inside the arc-shaped groove seat (25), and the other end of the arc-shaped spring (251) is fixedly connected to the return block (252).

7. A medical ostomy bag according to claim 1, characterized in that, The drainage mechanism includes: A switching pipe (31) is fixed to the drain pipe (12), and the switching pipe (31) is connected to the drain pipe (12); A slidable plug (32) is provided in the slidable and sealing manner on the slidable tube (31). A reset spring (33) is fixed between one end of the on / off plug (32) and the inner end face of the on / off tube (31).

8. A medical ostomy bag according to claim 7, characterized in that, The other end of the switch plug (32) is fixed with a stepped slide rod (321), which passes through the switch pipe (31).

9. A medical ostomy bag according to claim 7, characterized in that, The draining mechanism also includes a foolproof component, which includes a pin (34) and a foolproof cover (35). The pin (34) is slidably disposed inside the drain pipe (12) along the axial direction of the drain pipe (12). The bottom of the plug (32) is provided with a slot (341) that is compatible with the pin (34). The foolproof cover (35) is threadedly disposed at the opening of the drain pipe (12).

10. A medical ostomy bag according to claim 9, characterized in that, The pin (34) is a right trapezoid.

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