Magnetic ostomy bag

Abstract

A kind of magnetic ostomy bag, including bottom disc and ostomy bag body;The first magnetic ring is arranged around the through hole on the bottom disc and the through hole is opened, one side of the ostomy bag body is inlet, and the second magnetic ring is arranged around the inlet;The bottom disc and ostomy bag body are configured to be magnetically connected by the first magnetic ring and the second magnetic ring, and the first magnetic ring and the second magnetic ring have at least two different adsorption parts on the adsorption end face, each adsorption part has at least two, and different adsorption parts are arranged alternately along the ring direction;The adsorption part structure, quantity and distribution angle in the first magnetic ring and the second magnetic ring are same.Compared with prior art, the different adsorption parts are arranged alternately in the circumferential direction in the present application, the end face binding force is reduced while the vertical binding force is greatly improved, so that the replaceable ostomy bag does not slide due to the larger vertical binding force when in use, and is easy to replace due to the smaller end face binding force.

Description

Technical Field

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

[0002] In the medical field, ostomy is a common surgical procedure aimed at creating a new drainage pathway for internal organs through the abdomen. After ostomy, patients need to use an ostomy bag to collect waste. Existing magnetic ostomy devices use titanium-plated steel rings embedded in the body to avoid skin allergies and address ostomy seal issues. However, they do not consider biocompatibility or ease of change for patients. There is also a silicone magnetic nanoparticle integrated ostomy bag design, which uses buttons and eyelets for suspension, potentially increasing the bag's weight and hindering patient movement and daily activities. Furthermore, its complexity may limit its widespread adoption compared to traditional designs. Researchers have designed a magnetic ostomy device, which is an improvement over traditional methods, but still requires some manipulation by some patients or caregivers, especially when aligning the protrusions and notches.

[0003] In the prior art, CN216823839U discloses a magnetic two-piece ostomy bag, and CN216318316U discloses a magnetic two-piece ostomy base plate, which are used together. First, the magnetic ostomy base plate is fixed to the patient's stoma. Then, a soft fixation body is fitted onto the ostomy bag fixing ring of the magnetic ostomy base plate, initially fixed mechanically. Next, the fixation body is attracted and pressed tightly by a soft magnetic strip and a magnetic groove at the upper end of the magnetic ostomy base plate. When changing the ostomy bag, the patient only needs to pull the soft magnetic strip to separate it from the magnetic strip opening. Although these two patents utilize magnetic attraction to replace the traditional button and buttonhole connection method, the magnetic attraction is actually limited to pressing the fixation body, while the fixation body still needs to be mechanically installed with the base plate's fixing ring. The reason for this is that the magnetic attraction is insufficient to overcome gravity. The mechanical structure using the fixation body, fixing ring, and magnetic groove obviously causes noticeable bulges in the base plate and ostomy bag, resulting in significant discomfort when worn close to the body. Furthermore, its use requires the fixing body and fixing ring to be installed together, so its replacement process is actually no simpler than the current button and buttonhole connection method.

[0004] Therefore, there is an urgent need for an ostomy bag solution that can securely fix the ostomy bag, reduce skin irritation, and simplify the replacement process. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention aims to provide a magnetic ostomy bag to solve at least one of the problems of existing ostomy bags, such as inconvenient operation, poor adhesion, poor sealing, and skin irritation.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A magnetic ostomy bag includes a base and an ostomy bag body. The base has a through hole and a first magnetic ring is arranged around the through hole. One side of the ostomy bag body serves as an inlet, and a second magnetic ring is arranged around the inlet. The base and the ostomy bag body are configured to be magnetically connected via the first and second magnetic rings. The first and second magnetic rings have at least two different adsorption portions on their adsorption end faces, with at least two of each type of adsorption portion, and the different adsorption portions are arranged alternately along the circumferential direction. The adsorption portions in the first and second magnetic rings have the same structure, number, and distribution angle.

[0007] In one embodiment, the adsorption section includes two types: an arc-shaped magnetic circuit section and a vertical magnetic circuit section. The arc-shaped magnetic circuit section is radially magnetized and is arranged on the upper and lower sides of the hole in the magnetic ring. The vertical magnetic circuit section is axially magnetized and is arranged on the left and right sides of the hole in the magnetic ring. The term "vertical" refers to the direction of gravity when the ostomy bag is used.

[0008] In one embodiment, the adsorption section is implemented by the following method: The magnetic ring is divided into four equal magnetic pole segments along the circumference. Adjacent segments alternate between arc-shaped and vertical magnetic circuits. Each magnetic pole consists of one arc-shaped segment and one vertical segment, arranged alternately along the circumference.

[0009] In one embodiment, a first positioning mark is provided on the chassis and a second positioning mark is provided on the ostomy bag body. When the positions of the first positioning mark and the second positioning mark are corresponding, the magnetic circuit of the first magnetic ring and the magnetic circuit of the second magnetic ring are attracted to each other.

[0010] In one embodiment, the first positioning mark is located on the upper part of the chassis, and the line connecting it to the center of the through hole is the direction of gravity when the ostomy bag is applied.

[0011] In one embodiment, the adsorption section includes at least N arc-shaped magnetic circuit segments, where N is an even number and N≥4. Each arc-shaped magnetic circuit segment is axially magnetized, and the N pole and S pole of adjacent arc-shaped magnetic circuit segments are opposite.

[0012] In one embodiment, the adsorption section is implemented by the following method: The magnetic ring is divided into N equal magnetic pole segments along the circumference, and adjacent segments are alternately magnetized in opposite directions.

[0013] In one embodiment, the magnetic ostomy bag further includes a third magnetic ring; The third magnetic ring is embedded in the body around the stoma, and its adsorption structure, number, and distribution angle are the same as those of the first magnetic ring. It achieves magnetic connection with the chassis through the first magnetic ring.

[0014] In one embodiment, a first positioning mark is provided on the chassis, and a second positioning mark is provided on the ostomy bag. When the position of the first positioning mark is determined, the N and S poles of the first magnetic ring are attracted to the corresponding S and N poles of the third magnetic ring. The position of the second positioning mark is set such that when it corresponds to the first positioning mark, the N and S poles of the first magnetic ring are attracted to the corresponding S and N poles of the second magnetic ring.

[0015] In one embodiment, the ostomy bag body is provided with a movable liner.

[0016] Compared with the prior art, the present invention greatly improves the vertical bonding force and reduces the end face bonding force by arranging different adsorption parts alternately in the circumferential direction. This makes the replaceable ostomy bag not slip off during use due to the large vertical bonding force, while the small end face bonding force makes it easy to replace.

[0017] Furthermore, by implanting a magnetic ring inside the body, this invention further optimizes the structure of the ostomy bag, making the baseplate easy to remove without needing to be adhered to the skin surface, thus avoiding skin irritation.

[0018] Furthermore, the present invention facilitates independent replacement of the ostomy bag by means of positioning measures and a smaller end-face bonding force.

[0019] Furthermore, the present invention extends the service life of the ostomy bag by adding a replaceable inner liner. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the chassis structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the ostomy bag structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the chassis structure (adsorption surface) of Embodiment 1 of the present invention.

[0023] Figure 4 This is a schematic diagram of the chassis structure (adhesive surface) according to Embodiment 1 of the present invention.

[0024] Figure 5 This is a schematic diagram of the film-applied structure according to Embodiment 1 of the present invention.

[0025] Figure 6 This is a schematic diagram of the ostomy bag structure (adsorption surface) of Embodiment 1 of the present invention.

[0026] Figure 7 This is a schematic diagram of the ostomy bag structure (suspended surface) according to Embodiment 1 of the present invention.

[0027] Figure 8This is a schematic diagram of the movable inner lining structure of Embodiment 1 of the present invention.

[0028] Figure 9 This is a schematic diagram of the chassis structure (partial adsorption surface) of Embodiment 2 of the present invention.

[0029] Figure 10 This is a schematic diagram of the chassis structure (adsorption surface) of Embodiment 2 of the present invention.

[0030] Figure 11 This is a schematic diagram of the film-coating structure in Embodiment 2 of the present invention.

[0031] Figure 12 This is a schematic diagram of the ostomy bag structure (partial adsorption surface) of Embodiment 2 of the present invention.

[0032] Figure 13 This is a schematic diagram of the ostomy bag structure (adsorption surface) of Embodiment 2 of the present invention.

[0033] Figure 14 This is a schematic diagram of the ostomy bag structure (suspended surface) of Embodiment 2 of the present invention.

[0034] Figure 15 A schematic diagram of the movable inner lining structure of Embodiment 2 of the invention.

[0035] Figure 16 A schematic diagram of the third magnetic ring structure of the present invention. Detailed Implementation

[0036] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings and examples.

[0037] like Figure 1 , Figure 2 The present invention provides a magnetic ostomy bag, which includes two main components: a base plate 4 and an ostomy bag body 7.

[0038] The base 4 has a through hole for exposing the stoma, and one side of the ostomy bag body 7 serves as the entrance. To achieve a detachable connection between the base 4 and the ostomy bag body 7, a first magnetic ring 2 is provided on the base 4, surrounding the through hole, and a second magnetic ring 5 is provided on the ostomy bag body 7, surrounding the entrance, thus creating a pathway from the stoma to the ostomy bag body 7. The base 4 and the ostomy bag body 7 are configured to be magnetically connected via the first magnetic ring 2 and the second magnetic ring 5, allowing for a detachable connection.

[0039] Conventional magnetic rings have their magnetic poles distributed on two sides, one being the N pole and the other the S pole. If this structure is used in an ostomy bag, it can easily lead to unstable adsorption forces due to severe magnetic leakage at the edges, as well as uneven sealing due to unbalanced annular pressure distribution. Furthermore, the large range of stray magnetic fields makes it susceptible to accidental adsorption interference. More importantly, separation requires overcoming all magnetic pole couplings simultaneously, resulting in a sharp increase in peak disassembly force, which is extremely difficult for a single person to perform, especially for patients using ostomy bags.

[0040] Therefore, in this invention, at least two different adsorption portions are provided on the adsorption end face of the magnetic ring. These differences include different magnetization methods or directions, or combinations of various methods. Furthermore, to ensure balance, each different adsorption portion is preferably provided in at least two forms, with different types of adsorption portions alternately arranged along the circumferential direction of the magnetic ring to construct a balanced adsorption structure. Clearly, the structure, quantity, and distribution angle of the adsorption portions in the first magnetic ring 2 and the second magnetic ring 5 should be completely identical to achieve good adsorption.

[0041] By using different types of adsorption structures arranged alternately in a circumferential pattern, the present invention aims to reduce the adsorption force on the end face and increase the vertical adsorption force, so as to ensure that there is a very strong vertical adsorption force between the two main parts of the magnetically adsorbed ostomy bag during use, and to ensure that the adsorption force on the end face is greatly reduced, so as to facilitate operation and replacement.

[0042] This invention provides two specific adsorption section structure designs, which are described below.

[0043] Example 1 refer to Figures 3 to 8 In this embodiment, the adsorption section includes two types: arc-shaped magnetic circuit segments and vertical magnetic circuit segments. That is, both the first magnetic ring 2 and the second magnetic ring 5 are annular magnets with alternating arc-shaped and vertical magnetic circuits, and the magnetic circuit distribution of the two magnetic rings is the same. This distribution can be understood as the curvature of the arc segment.

[0044] At this point, adjacent magnetic rings can attract each other and exert a very strong attraction only when their magnetic circuits correspond. Disassembly simply requires rotating the magnetic rings to misalign the magnetic poles. Since the lateral attraction (i.e., the end-face attraction described in this invention) is far less than the vertical magnetic circuit attraction (i.e., the vertical attraction and binding force described in this invention), only a very small rotational force is needed to misalign the magnetic poles and separate the two magnetic rings. Therefore, the connection and disassembly of the ostomy bag of this invention is very convenient and labor-saving, and can be completed by a single person with one hand.

[0045] The structure of this invention allows the ostomy bag to be disassembled and secured by rotation. When the ostomy bag body 7 is close to the base plate 4, adjacent magnetic poles attract each other, achieving a tight fixation. When the ostomy bag body 7 needs to be replaced, the patient only needs to rotate the ostomy bag body 7 to misalign the vertically distributed magnetic rings, thus easily removing the ostomy bag. In use, the patient first wears the base plate 4 on the stoma site and secures it to the waist using the loops 14. Then, the second magnetic ring 5 on the ostomy bag body 7 is aligned with the first magnetic ring 2 and brought close together, causing them to automatically attract and form a sealed connection.

[0046] For example, in this invention, the side of the chassis 4 closest to the skin is the adhesive surface, and the side furthest from the skin is the absorbent surface. The adhesive surface can be attached to the skin via the film 9. The film 9 is initially circular in shape, such as... Figure 5 As shown, the structure can be cut into a corresponding ring shape according to the size of the stoma. The film 9 can be pre-applied to the base plate 4 to avoid or reduce skin irritation. An adhesive sealant 17 can be provided on the adsorption surface to protect the magnetic surface and prevent skin damage.

[0047] In this embodiment, both the first magnetic ring 2 and the second magnetic ring 5 are neodymium iron boron magnetic rings with an inner diameter of 67 mm and an outer diameter of 88 mm, weighing 40 g, which can meet the needs of daily use. In use, one side of the base 4 (especially the side without the first magnetic ring 2) is attached to the skin around the stoma, which is the part that is carried on the body for a long time, while the stoma bag body 7 is attached to the base 4 by the second magnetic ring 5 and the first magnetic ring 2 when needed.

[0048] Clearly, in this embodiment, the ring magnet with its arc and vertical geometric design is the core feature. The present invention provides the following method for implementing this structure: The arc-shaped magnetic circuit sections of this invention are radially magnetized and located on the upper and lower sides of the central hole of the magnetic ring, while the vertical magnetic circuit sections are axially magnetized and located on the left and right sides of the central hole of the magnetic ring. In this invention, "vertical" refers to the direction of gravity when the ostomy bag is used.

[0049] Furthermore, the magnetic ring can be divided into four magnetic pole segments along the circumference. Adjacent segments alternately adopt the geometric design of arc-shaped magnetic circuits and vertical magnetic circuits. The magnetic pole consists of one arc-shaped segment and one vertical segment, which are arranged alternately in the circumference.

[0050] Obviously, in the annular magnet of this invention, the alternating arrangement of arc-shaped segments (radial magnetization) and vertical segments (axial magnetization) forms a dual magnetic field of radial main attraction + axial auxiliary sealing, thus avoiding increased operational difficulty. Therefore, this invention preferably arranges the arc-shaped and vertical segments symmetrically along the circumferential direction, such as... Figure 3 , Figure 4 and Figure 6 As shown in the image.

[0051] In a further embodiment of the present invention, such as Figure 3 , Figure 4 As shown, firstly, a cuttable portion 15 is designed at the through hole of the chassis 4. The cuttable portion 15 is annular with a central hole, and its outer edge connects to the inner edge of the through hole of the chassis 4. Several annular cutting lines are arranged along the circumferential direction on the cuttable portion 15, as shown by the dotted lines in the figure. Its function is to allow the cuttable portion 15 to be cut according to different ostomies, so that the size of its central hole can be adjusted.

[0052] Secondly, there are hanging ears 14 on the left and right sides of the through hole of the chassis 4, which can fix the chassis to the stoma patient.

[0053] Finally, a first positioning mark 16 is also set on the chassis 4. The position of the first positioning mark 16 can be any easily identifiable location, typically, for example, directly above the through hole, that is, located on the upper part of the chassis 4, and the line connecting it and the center of the through hole is the direction of gravity when the ostomy bag is applied. The function of the first positioning mark 16 is that, when its position is determined, the vertical magnetic circuit design of the second magnetic ring 5 corresponds completely to and attracts the vertical magnetic circuit design of the first magnetic ring 2.

[0054] Furthermore, a second positioning mark 8 can be set on the ostomy bag body 7, such as... Figure 6 As shown, the position of the second positioning mark 8 should follow that of the first positioning mark 16. Their positional relationship is as follows: when the position of the first positioning mark 16 corresponds to the position of the second positioning mark 8, the S and N poles of the magnetic circuit of the first magnetic ring 2 and the second magnetic ring 5 are attracted to each other. The side of the ostomy bag body 7 closest to the skin is the adsorption surface, and the side furthest from the skin is the suspended surface, as shown... Figure 7 As shown. Obviously, for ease of positioning, the second positioning mark 8 can be designed on the side of the ostomy bag body 7 with the entrance.

[0055] In a further embodiment of the present invention, the ostomy bag body 7 can be configured as follows: Figure 8 The movable inner liner 11 shown can be inserted into the ostomy bag body 7 and used as a replaceable consumable. When going out or when it is inconvenient to change it, the movable inner liner 11 can be directly discarded, improving the convenience of replacement. This design can also effectively reduce the waste of the ostomy bag body 7.

[0056] Furthermore, such as Figure 6 , Figure 7 As shown, a sealing part 12 and an adhesive part 13 are provided at the bottom outlet of the ostomy bag body 7. The sealing part 12 is located outside the bottom outlet, and the adhesive part 13 is located above it. In use, the sealing part 12 is rolled up to the adhesive part 13, and the adhesive part 13 is used to seal the opening, thereby ensuring that the contents are sealed. The patient can open the sealing part 12 to perform the operation when drainage is required.

[0057] The method of using the above embodiment one of the present invention is as follows: 1. Chassis installation Before use, patients need to clean the stoma site to ensure there are no water stains or foreign objects.

[0058] Fit the base plate 4 around the stoma and adjust it to a suitable position to ensure a stable fit.

[0059] 2. Bag installation When the ostomy bag body 7 approaches the base plate 4, the first magnetic ring 2 and the second magnetic ring 5 automatically align and adhere, achieving a rapid sealing connection. The magnetic adhesion ensures a tight seal, effectively preventing leakage of the ostomy bag during wear.

[0060] 3. Securely fixed The vertical magnetic circuit design utilizes the stability of the magnetic field direction to ensure that the ostomy bag is firmly fixed.

[0061] Horizontal direction: The ostomy bag body 7 can be easily removed for convenient daily replacement.

[0062] Vertical direction: The magnetic circuit design effectively prevents accidental separation caused by putting on or taking off clothing or daily activities.

[0063] 4. Ostomy bag replacement and drainage When the ostomy bag needs to be replaced, the ostomy bag body 7 can be slid horizontally to disconnect the magnetic connection.

[0064] After removing the ostomy bag, it can be cleaned or a new ostomy bag can be replaced.

[0065] The sealing part 12 and the adhesive part 13 work together to ensure that the contents do not leak out.

[0066] When discharge is required, the seal 12 can be opened to discharge the contents and then resealed.

[0067] In summary, the magnetic adsorption connection structure of this embodiment improves the stability and sealing of the ostomy bag, and optimizes ease of operation. The vertical magnetic circuit design ensures uniform adsorption and enhances the fixation effect of the ostomy bag. It also reduces problems caused by adhesive aging, skin allergies, or poor sealing, improving the safety and comfort of ostomy care.

[0068] Example 2 refer to Figures 9 to 16 In this embodiment, the adsorption section includes an even number of arc-shaped magnetic segments, and the number of arc-shaped magnetic segments is at least four. Each arc-shaped magnetic segment is axially magnetized, and the N poles and S poles of adjacent arc-shaped magnetic segments are opposite. That is, the adsorption section in this embodiment has two types, the difference being that the N poles and S poles have different directions.

[0069] The magnetic ostomy bag in this embodiment may also include, for example: Figure 16The third magnetic ring 1 is shown. The third magnetic ring 1 is the part implanted in the body, surrounding the stoma. Its material conforms to the specifications for human implantable materials, such as neodymium iron boron. Typical dimensions include an inner diameter of 67mm and an outer diameter of 88mm.

[0070] The ostomy bag body 7 is the external container, based on a conventional ostomy bag, with the inlet located on one side and a second magnetic ring 5 surrounding the inlet. If the second magnetic ring 5 and the third magnetic ring 1 were directly attracted by magnetic force, it would be difficult to control and could easily cause skin damage during repeated operations. Therefore, in this embodiment, the base plate 4 serves as the connection medium between the ostomy bag body 7 and the third magnetic ring 1. The base plate 4 adopts a patch structure with a through hole, and a first magnetic ring 2 is arranged around the through hole.

[0071] The adsorption structure, number, and distribution angle of the adsorption portion on the third magnetic ring 1 are the same as those on the first magnetic ring 2. That is, in this embodiment, the third magnetic ring 1, the first magnetic ring 2, and the second magnetic ring 5 are all annular magnets with N poles and S poles arranged alternately along the circumferential direction, and the number and distribution angle of the N poles and S poles in each magnetic ring are the same. The distribution angle here can be understood as the radian of the arc segment.

[0072] Therefore, the chassis 4 is magnetically connected to the third magnetic ring 1 via the first magnetic ring 2, and then the ostomy bag body 7 is magnetically connected to the chassis 4 via the second magnetic ring 5 and the first magnetic ring 2, thereby avoiding the above-mentioned problems.

[0073] At this point, adjacent magnetic rings can attract each other and exert a very strong attraction only when their N / S poles correspond to each other's S / N poles. Disassembly is simple: just rotate the magnetic rings to misalign the poles. Since the circumferential attraction is far less than the surface attraction, only a very small rotational force is needed to misalign the poles and separate the two magnetic rings. Therefore, the connection and disassembly of the ostomy bag in this embodiment is very convenient and labor-saving, and can be completed by a single person with one hand.

[0074] This embodiment allows the ostomy bag to be removed and secured by rotation. When the ostomy bag body 7 is close to the base plate 4, adjacent magnetic poles attract each other, achieving a tight fixation. When the ostomy bag body 7 needs to be replaced, the patient simply rotates the ostomy bag body 7 to misalign the alternating N and S magnetic rings, making it easy to remove the ostomy bag. In use, the patient first places the base plate 4 on the stoma site, ensuring that its first magnetic ring 2 fits securely. Then, the second magnetic ring 5 on the ostomy bag body 7 is aligned with the first magnetic ring 2 and brought close, causing it to automatically attract and form a sealed connection. This embodiment uses alternating N and S magnetic rings, which, while ensuring a firm attraction, improves the replaceability of the ostomy bag body 7 and avoids discomfort caused by excessive pressure during the removal of traditional ostomy bags.

[0075] In a further embodiment of this example, to avoid the problem of skin infection easily caused by existing ostomy bags, such as Figure 9 and Figure 10 As shown, a first latex shell 3 covers the base 4, covering the side of the base 4 that is close to the skin and extending to the adsorption surface, while exposing the through hole and the first magnetic ring 2. The first latex shell 3 provides a safe isolation layer in contact with the skin. The latex material effectively prevents skin infection, improves biocompatibility, reduces damage to the abdominal wall and intestines by the ring magnet, and enhances the patient's wearing comfort.

[0076] Since the first magnetic ring 2 needs to be connected to both the third magnetic ring 1 and the second magnetic ring 5, in this embodiment, the outer edge of the first magnetic ring 2 is connected to the inner edge of the through hole in the chassis 4. Specifically, an annular groove can be provided on the inner wall of the through hole, and the outer edge of the first magnetic ring 2 is inserted into the groove for assembly. At this time, the chassis 4 needs to have a certain degree of elasticity, or, if the first magnetic ring 2 is thin enough, it itself also needs a certain degree of elasticity to achieve the installation.

[0077] Correspondingly, a second latex shell 6 can also be provided around the inlet of the ostomy bag body 7, and the second magnetic ring 5 can be placed on the second latex shell 6; alternatively, the second latex shell 6 can be arranged around the second magnetic ring 5, such as... Figure 12 As shown.

[0078] Since the second magnetic ring 5 only needs to be connected to the first magnetic ring 2, in this embodiment, the second magnetic ring 5 can be directly attached to the ostomy bag body 7 and the entrance can be exposed.

[0079] Obviously, in this embodiment, the ring magnet with an alternating N and S poles on the adsorption end face is the core feature of this embodiment. The implementation method of this structure is provided as follows: The magnetic ring is divided into N equal magnetic pole segments along the circumference, and adjacent segments are alternately magnetized in opposite directions.

[0080] Obviously, in the ring magnet of this embodiment, the N poles and S poles are preferably distributed at equal intervals, and preferably the number of N poles and S poles is equal. Their number should not be too large to avoid increasing manufacturing costs and operational difficulty. Their number should also not be too small to reduce magnetic attraction strength. Therefore, this embodiment preferably arranges two N poles and two S poles alternately and evenly along the circumferential direction, such as... Figure 9 , Figure 10 , Figure 12 and Figure 13 As shown in the image.

[0081] In a further embodiment of this example, such as Figure 10As shown, firstly, a cuttable portion 15 is designed at the through hole of the chassis 4. The cuttable portion 15 is annular with a central hole, and its outer edge connects to the inner edge of the through hole of the chassis 4. At this time, the first magnetic ring 2 is directly attached to the chassis 4. Since the chassis 4 is relatively thin, its magnetic force is sufficient to penetrate the chassis 4 and attract the magnetic ring on the other side. Several annular cutting lines are arranged along the circumferential direction on the cuttable portion 15, as shown by the dotted lines in the figure. Its function is to allow the cuttable portion 15 to be cut according to different ostomies, so that the size of its central hole can be adjusted.

[0082] Secondly, there are hanging ears 14 on both sides of the through hole of the chassis 4, and patients can add a waist belt as needed to enhance the load-bearing capacity.

[0083] Finally, a first positioning mark 16 is also set on the chassis 4. The position of the first positioning mark 16 can be any easily identifiable location, typically, for example, directly above the through hole, that is, located on the upper part of the chassis 4, and the line connecting it and the center of the through hole is the direction of gravity when the ostomy bag is used. The function of the first positioning mark 16 is that, when its position is determined, the N and S poles of the first magnetic ring 2 correspond perfectly with the S and N poles of the third magnetic ring 1 and attract each other.

[0084] In a further embodiment of this example, it is also possible Figure 11 The film 9 shown replaces the first latex shell 3 (the central hole is not shown in the figure). The film 9 can be pre-applied to the chassis 4, or it can be directly applied to the chassis 4 and the first magnetic ring 2. Its material can also be latex to avoid or reduce skin irritation.

[0085] In a further embodiment of this example, such as Figure 13 As shown, firstly, a second positioning mark 8 is provided on the ostomy bag body 7. The position of the second positioning mark 8 should follow that of the first positioning mark 16. The positional relationship between the two is as follows: when the second positioning mark 8 corresponds to the first positioning mark 16, the N and S poles of the first magnetic ring 2 are attracted to the corresponding S and N poles of the second magnetic ring 5. Obviously, for ease of positioning, the second positioning mark 8 can be designed on the side of the ostomy bag body 7 with the inlet.

[0086] Secondly, the ostomy bag body 7 can be formulated as follows: Figure 15 The movable inner liner 11 shown can be inserted into the ostomy bag body 7 and used as a replaceable consumable. When going out or when it is inconvenient to change it, the movable inner liner 11 can be directly discarded, improving the convenience of replacement. This design can also effectively reduce the waste of the ostomy bag body 7.

[0087] Finally, a sealing part 12 and an adhesive part 13 are provided at the bottom outlet position of the ostomy bag body 7, such as... Figure 14As shown. The sealing part 12 is located outside the bottom outlet, and the adhesive part 13 is located above it. When in use, the sealing part 12 is rolled up to the adhesive part 13, and the adhesive part 13 is used to seal the contents, thereby ensuring that the contents are sealed. The patient can open the sealing part 12 to operate when discharge is required.

[0088] The usage method of this embodiment is as follows: 1. Chassis installation Before use, patients need to clean the stoma site to ensure there are no water stains or foreign objects.

[0089] Fit the base plate 4 around the stoma and adjust it to a suitable position to ensure a stable fit.

[0090] 2. Bag installation When the ostomy bag body 7 approaches the base plate 4, the first magnetic ring 2 and the second magnetic ring 5 automatically align and adhere, achieving a rapid sealing connection. The magnetic adhesion ensures a tight seal, effectively preventing leakage of the ostomy bag during wear.

[0091] 3. Securely fixed The design employs an alternating NS magnetic circuit, utilizing the stability of the magnetic field direction to ensure the ostomy bag is securely fixed.

[0092] Horizontal direction: The ostomy bag body 7 can be easily removed for convenient daily replacement.

[0093] Vertical direction: The magnetic circuit design effectively prevents accidental separation caused by putting on or taking off clothing or daily activities.

[0094] 4. Ostomy bag replacement and drainage When the ostomy bag needs to be replaced, the ostomy bag body 7 can be slid horizontally to disconnect the magnetic connection.

[0095] After removing the ostomy bag, it can be cleaned or a new ostomy bag can be replaced.

[0096] The sealing part 12 and the adhesive part 13 work together to ensure that the contents do not leak out.

[0097] When discharge is required, the seal 12 can be opened to discharge the contents and then resealed.

[0098] In summary, the magnetic adsorption connection structure of this embodiment improves the stability and sealing of the ostomy bag, and optimizes ease of operation. The alternating NS magnetic circuit design ensures uniform adsorption and enhances the fixation effect of the ostomy bag. It also reduces problems caused by adhesive aging, skin allergies, or poor sealing, improving the safety and comfort of ostomy care.

Claims

1. A magnetic ostomy bag, comprising a base (4) and an ostomy bag body (7); the base (4) has a through hole and a first magnetic ring (2) is arranged around the through hole; one side of the ostomy bag body (7) is an inlet, and a second magnetic ring (5) is arranged around the inlet; the base (4) and the ostomy bag body (7) are configured to be magnetically connected by the first magnetic ring (2) and the second magnetic ring (5), characterized in that: The first magnetic ring (2) and the second magnetic ring (5) have at least two different adsorption parts on the adsorption end face, with at least two of each adsorption part, and the different adsorption parts are arranged alternately along the circumferential direction; the adsorption parts in the first magnetic ring (2) and the second magnetic ring (5) have the same structure, number and distribution angle.

2. The magnetic ostomy bag according to claim 1, characterized in that, The adsorption section includes two types: arc-shaped magnetic circuit section and vertical magnetic circuit section. The arc-shaped magnetic circuit section is radially magnetized and is arranged on the upper and lower sides of the hole in the magnetic ring. The vertical magnetic circuit section is axially magnetized and is arranged on the left and right sides of the hole in the magnetic ring. The term "vertical" refers to the direction of gravity when the ostomy bag is used.

3. The magnetic ostomy bag according to claim 2, characterized in that, The adsorption section is implemented by the following method: The magnetic ring is divided into four equal magnetic pole segments along the circumference. Adjacent segments alternate between arc-shaped and vertical magnetic circuits. Each magnetic pole consists of one arc-shaped segment and one vertical segment, arranged alternately along the circumference.

4. The magnetic ostomy bag according to claim 1, characterized in that, The chassis (4) is provided with a first positioning mark (16), and the ostomy bag body (7) is provided with a second positioning mark (8). When the positions of the first positioning mark (16) and the second positioning mark (8) are corresponding, the magnetic circuit of the first magnetic ring (2) and the magnetic circuit of the second magnetic ring (5) are attracted to each other.

5. The magnetic ostomy bag according to claim 4, characterized in that, The first positioning mark (16) is located on the upper part of the chassis (4), and the line connecting it to the center of the through hole is the direction of gravity when the ostomy bag is applied.

6. The magnetic ostomy bag according to claim 1, characterized in that, The adsorption section includes at least N arc-shaped magnetic circuit segments, where N is an even number and N≥4. Each arc-shaped magnetic circuit segment is axially magnetized, and the N pole and S pole of adjacent arc-shaped magnetic circuit segments are opposite.

7. The magnetic ostomy bag according to claim 6, characterized in that, The adsorption section is implemented by the following method: The magnetic ring is divided into N equal magnetic pole segments along the circumference, and adjacent segments are alternately magnetized in opposite directions.

8. The magnetic ostomy bag according to claim 6, characterized in that, The magnetic ostomy bag also includes a third magnetic ring (1). The third magnetic ring (1) is embedded in the body around the stoma. The structure, number and distribution angle of the adsorption part on it are the same as those of the first magnetic ring (2). The magnetic connection with the chassis (4) is achieved through the first magnetic ring (2).

9. The magnetic ostomy bag according to claim 8, characterized in that, The chassis (4) is provided with a first positioning mark (16), and the ostomy bag body (7) is provided with a second positioning mark (8). When the position of the first positioning mark (16) is determined, the N and S poles of the first magnetic ring (2) are attracted to the S and N poles of the third magnetic ring (1). The position of the second positioning mark (8) is set such that when it corresponds to the first positioning mark (16), the N and S poles of the first magnetic ring (2) are attracted to the S and N poles of the second magnetic ring (5).

10. The magnetic ostomy bag according to any one of claims 1 to 9, characterized in that, The ostomy bag body (7) is provided with a movable inner liner (11).

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