Disposable soft and gentle medical sandbag cover

CN224911293UActive Publication Date: 2026-10-30CHINA JAPAN FRIENDSHIP HOSPITAL
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Patent Information

Application Number
CN202521098168.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2026-10-30
Estimated Expiration
2035-05-30

AI Technical Summary

Technical Problem

由于帆布和防水布的材质特性,这些污染物容易渗入布料纤维内部,即使经过常规消毒处理,仍无法完全清除残留的病原微生物

Benefits of technology

[0017]本实用新型提供的一次性使用绵柔亲肤医用沙袋套,通过采用一次性使用的形式,从根本上避免了重复使用导致的交叉感染隐患。每个沙袋套仅供一名患者使用,使用后直接废弃,无需进行复杂的消毒处理流程,既保证了使用安全性,又减轻了医护人员的工作负担。通过在最外层采用亲肤无纺布材料,改善了产品与皮肤的接触体验。与传统帆布材质相比,亲肤无纺布具有更好的柔软性和透气性,能够有效减少对皮肤的摩擦刺激,降低患者的不适感。这种材料选择特别适合需要长时间压迫治疗的患者,可以显著提高治疗依从性。而且,外层亲肤无纺布能够快速导入渗液,中层吸液材料可及时吸收并存储渗液,内层防漏材料则确保渗液不会渗入填充物。实现了对渗液的有效管理,避免了渗液在皮肤表面积聚,保持了患者皮肤的干爽舒适。进而实现有效避免交叉感染的风险,同时对渗透液的处理效果,提高病患的使用舒适性。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to medical supplies technical field especially, more particularly to a disposable use soft and gentle skin -friendly medical sandbag cover, the utility model embodiment provides a disposable use soft and gentle skin -friendly medical sandbag cover, including bag body, bag body has cavity and the opening of cavity intercommunication, bag body includes: first layer structure, set up in the outermost layer of bag body, and the first layer structure adopts skin -friendly non -woven fabric, second layer structure, set up in the innermost layer of bag body, and the second layer structure adopts leakage -proof material, third layer structure, sandwiched between first layer structure and second layer structure, and the third layer structure adopts liquid -absorbing material, the utility model embodiment provides a disposable use soft and gentle skin -friendly medical sandbag cover can effectively avoid the risk of cross infection, and the treatment effect to permeate liquid, improve the use comfort of patient.
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Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, and in particular to a disposable, soft, skin-friendly medical sandbag cover. Background Technology

[0002] Medical sandbags, as an important medical auxiliary device, are widely used in clinical scenarios such as postoperative compression hemostasis and local pressure therapy. Traditional medical sandbags typically employ a double-layer structure design with a canvas outer layer and a waterproof inner layer, filled with fine sand or other granular materials. This reusable design presents several technical challenges that urgently need to be addressed in practical applications.

[0003] The primary problem is the inherent risk of cross-infection with traditional medical sandbags. During use, sandbags can become contaminated with biological pollutants such as patients' blood and bodily fluids. Due to the material properties of canvas and waterproof fabric, these pollutants easily penetrate the fabric fibers, and even routine disinfection cannot completely eliminate residual pathogens. This potential risk of cross-infection is particularly pronounced in medical institutions where the sandbags need to be reused by multiple people. Furthermore, repeated disinfection processes not only increase the workload of medical staff but also accelerate the aging of the product materials, affecting its lifespan.

[0004] Secondly, existing medical sandbags have significant shortcomings in terms of user comfort. The outer layer of traditional canvas is relatively rough and has poor breathability. When it is in direct contact with the patient's skin for a long time, it can easily cause local friction discomfort and a feeling of stuffiness. More seriously, when there is a lot of exudate, the exudate can easily accumulate on the contact area, causing the patient's skin to be in a moist environment for a long time. This not only affects the comfort of treatment, but may also cause complications such as pressure sores.

[0005] The third prominent issue is the insufficient leak-proof performance of existing medical sandbags. Although a waterproof inner layer is used, its leak-proof effect gradually weakens during actual use, especially under continuous pressure. Once leakage seeps into the filling material, it not only affects the effectiveness of compression therapy but may also cause the filling material to deteriorate, produce odors, and even increase the risk of infection. This design flaw seriously affects the product's effectiveness and safety. Utility Model Content

[0006] This invention provides a disposable, soft, skin-friendly medical sandbag cover. This disposable, soft, skin-friendly medical sandbag cover can effectively avoid the risk of cross-infection, and at the same time, it improves the treatment of exudate and enhances the comfort of patients.

[0007] This utility model embodiment provides a disposable, soft, skin-friendly medical sandbag cover, including a bag body with a cavity and an opening communicating with the cavity. The bag body includes: a first layered structure disposed on the outermost layer of the bag body, the first layered structure being made of skin-friendly non-woven fabric; a second layered structure disposed on the innermost layer of the bag body, the second layered structure being made of leak-proof material; and a third layered structure sandwiched between the first layered structure and the second layered structure, the third layered structure being made of absorbent material.

[0008] In one possible implementation, the second layered structure is made of PE material or a biodegradable material.

[0009] In one possible implementation, the third layer structure is made of a superabsorbent polymer.

[0010] In one possible implementation, the outer surface of the first layered structure is provided with a diamond-shaped mesh pattern.

[0011] In one possible implementation, the opening of the bag is provided with a drawstring structure, which is used to open or close the opening.

[0012] In one possible implementation, the opening of the bag is provided with a sliding channel for engaging the drawstring structure.

[0013] One possible implementation also includes: a flexible skeleton structure disposed between the second and third layered structures to maintain the shape of the bag after the external force is removed.

[0014] In one possible implementation, the flexible skeleton structure includes: multiple metal wires extending along the length of the bag body, with both ends of the metal wires having an arc structure and connecting to the edge sealing area of ​​the bag body.

[0015] In one possible implementation, the metal wires are arranged in a wavy pattern and are covered with a soft sheath.

[0016] In one possible implementation, the bag can be stably maintained in a straight, arc-shaped, U-shaped, L-shaped, or S-shaped form through a flexible skeleton structure.

[0017] This invention provides a disposable, soft, skin-friendly medical sandbag cover. By adopting a single-use design, it fundamentally avoids the risk of cross-infection caused by reuse. Each sandbag cover is for the use of only one patient and is discarded directly after use, eliminating the need for complex disinfection procedures. This ensures safety and reduces the workload of medical staff. The use of skin-friendly non-woven fabric in the outermost layer improves the contact experience with the skin. Compared to traditional canvas, skin-friendly non-woven fabric has better softness and breathability, effectively reducing friction and irritation to the skin and alleviating patient discomfort. This material choice is particularly suitable for patients requiring prolonged pressure therapy, significantly improving treatment compliance. Furthermore, the outer skin-friendly non-woven fabric allows for rapid absorption of exudate, the middle absorbent material absorbs and stores exudate, and the inner leak-proof material ensures that exudate does not seep into the filler. This achieves effective management of exudate, preventing its accumulation on the skin surface and keeping the patient's skin dry and comfortable. This effectively avoids the risk of cross-infection and improves patient comfort by effectively managing exudate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of a disposable, soft, skin-friendly medical sandbag cover provided by this utility model.

[0020] Figure 2 This is a schematic diagram of the layered cross-sectional structure of a bag body provided by this utility model.

[0021] Figure 3 This is a schematic diagram of a planar structure of a flexible skeleton structure provided by this utility model.

[0022] Figure 4 This is a cross-sectional schematic diagram of a flexible skeleton structure provided by this utility model.

[0023] Figure 5 This is a structural diagram of a bag body in a strip shape provided by this utility model.

[0024] Figure 6 This is a structural diagram of a bag body in an L-shape provided by this utility model.

[0025] Figure 7 This is a schematic diagram of the structure of a bag when it is in a U-shape, as provided by this utility model.

[0026] Figure 8 This is a schematic diagram of the structure of a bag when it is in an arc shape, as provided by this utility model.

[0027] Figure label: 1. Bag body; 11. Opening; 12. First layer structure; 121. Diamond mesh pattern; 13. Second layer structure; 14. Third layer structure; 15. Sliding channel; 16. Flexible skeleton structure; 161. Metal wire; 162. Arc structure; 163. Soft sheath; 2. Drawstring structure. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] The following is combined Figure 1-8 This utility model describes a disposable, soft, skin-friendly medical sandbag cover, including a bag body 1. The bag body 1 has a cavity and an opening 11 communicating with the cavity. The bag body 1 includes: a first layered structure 12, which is disposed on the outermost layer of the bag body 1 and is made of skin-friendly non-woven fabric; a second layered structure 13, which is disposed on the innermost layer of the bag body 1 and is made of leak-proof material; and a third layered structure 14, which is sandwiched between the first layered structure 12 and the second layered structure 13 and is made of liquid-absorbing material.

[0030] This invention, by employing a single-use design, fundamentally avoids the risk of cross-infection caused by reuse. Each sandbag cover is for the use of only one patient and is discarded directly after use, eliminating the need for complex disinfection procedures. This ensures safety and reduces the workload of medical staff. The use of skin-friendly non-woven fabric in the outermost layer improves the contact experience with the skin. Compared to traditional canvas, skin-friendly non-woven fabric offers better softness and breathability, effectively reducing friction and irritation to the skin and alleviating patient discomfort. This material choice is particularly suitable for patients requiring prolonged compression therapy, significantly improving treatment compliance. Furthermore, the outer skin-friendly non-woven fabric allows for rapid absorption of exudate, the middle absorbent material promptly absorbs and stores exudate, and the inner leak-proof material ensures that exudate does not seep into the filler. This achieves effective management of exudate, preventing its accumulation on the skin surface and keeping the patient's skin dry and comfortable. This effectively avoids the risk of cross-infection and improves patient comfort through effective exudate management.

[0031] Specifically, the skin-friendly material of the first layer 12 first contacts the exudate and guides it to the middle layer. The middle third layer 14 rapidly absorbs and stores the exudate, while the second layer 13 ensures that the exudate does not seep inward. This complete exudate management system demonstrates excellent performance in practical applications. For example, when stopping bleeding at the surgical site, it ensures effective compression without compromising the quality of compression due to exudate. Simultaneously, this structural design allows medical personnel to easily determine whether product replacement is necessary by observing the condition of the outer layer, thus improving the level of medical quality management.

[0032] The outermost layer of the bag 1 is made of skin-friendly non-woven fabric. Due to its excellent breathability and softness, non-woven fabric significantly reduces friction and irritation when in direct contact with the patient's skin, especially beneficial in postoperative patients with high skin sensitivity. This design effectively reduces discomfort. Simultaneously, the porous structure of the non-woven fabric maintains local skin breathability, preventing skin dampness caused by prolonged pressure. In clinical applications, particularly during compression therapy on sensitive areas such as the neck or limbs, this skin-friendly property significantly improves patient compliance.

[0033] The second layer structure 13, designed with leak-proof materials, primarily addresses the issues of traditional medical sandbags being prone to moisture and contamination. When there is postoperative wound exudation, the leak-proof layer effectively prevents exudate from seeping into the filler, avoiding moisture and deterioration. For example, during compression hemostasis after carotid endarterectomy, even with significant exudate, the filler remains dry, ensuring the continuity of the compression effect. Simultaneously, this leak-proof design prevents medical personnel from coming into contact with the patient's exudate during procedures, reducing occupational exposure risks.

[0034] The third-layer structure 14, using a specific absorbent material, can quickly absorb and store exudate. This sandwich design allows exudate to be absorbed promptly and confined to the middle layer, preventing both the dampness and discomfort caused by exudate accumulation on the surface and the penetration of exudate into the inner layer. In clinical applications, this structural design can continuously keep the patient's skin dry, significantly reducing the risk of local infection and accelerating wound healing. Especially in cases requiring prolonged pressure, this dry and comfortable experience can greatly reduce the burden of care.

[0035] As a single-use product, this medical sandbag cover completely avoids the risk of cross-infection caused by reuse. It also eliminates the cost of subsequent processing steps such as cleaning and disinfection. Furthermore, its single-use nature ensures that each product maintains the same performance level, which helps guarantee consistent treatment outcomes.

[0036] In some embodiments, the second layered structure 13 is made of PE material or a biodegradable material.

[0037] In this invention, the product performance is further optimized by explicitly specifying the material selection for the second layered structure 13. When PE material is selected, its excellent waterproof performance can completely block liquid penetration. Simultaneously, PE material possesses appropriate toughness and lightweight characteristics, making the product less prone to damage during use and preventing additional weight accumulation. In clinical applications, even with significant leakage, PE material maintains good sealing performance; when the product needs to be bent, PE material does not crack, ensuring the continuity of the sealing effect. These characteristics greatly improve the reliability of the product in practical use.

[0038] When the second layer structure 13 is made of biodegradable materials, it is more environmentally friendly and meets the needs of green hospitals.

[0039] In some embodiments, the third layered structure 14 is made of a superabsorbent polymer.

[0040] In this invention, the use of superabsorbent polymer (SAP) as the third layer structure 14 enhances the product's liquid absorption performance. SAP possesses excellent water absorption capacity, capable of absorbing several times its own weight in liquid within a very short time. This rapid absorption characteristic is particularly important in cases of significant exudation in the early postoperative period. In practical applications, when encountering a sudden surge in exudation, SAP can respond and absorb it quickly, effectively preventing localized accumulation of exudate. Simultaneously, this material exhibits good water retention properties; even under external pressure, it does not easily release the absorbed liquid, ensuring that backflow does not occur during pressure application.

[0041] Specifically, in long-term use scenarios, the continuous absorption capacity of superabsorbent polymers keeps the local environment consistently dry. Because the material itself is lightweight and of moderate thickness, it achieves sufficient absorption without significantly increasing the overall weight and volume of the product. This characteristic is even more important when prolonged wear is required, as it does not impose additional burden on patients while providing a consistently comfortable user experience. Clinical practice has shown that this material choice significantly reduces the frequency of product replacements by caregivers, improving medical efficiency.

[0042] In some embodiments, the outer surface of the first layered structure 12 is provided with a diamond-shaped mesh pattern 121.

[0043] In this invention, by providing a diamond-shaped mesh pattern 121 on the outer surface of the first layered structure 12, the surface area of ​​the material is increased from a physical perspective. This structural design significantly improves the product's breathability. In actual use, the increased surface area promotes air circulation and effectively reduces the stuffiness felt on the patient's skin. Especially in hot seasons or when prolonged pressure is required, this improved breathability significantly enhances the patient's comfort.

[0044] Secondly, the micro-textured structure formed by the diamond-shaped mesh 121 increases the friction of the product surface. This design exhibits a significant anti-slip effect in practical applications, especially when used on easily slippery areas such as the neck, effectively preventing the sandbag from shifting. Simultaneously, this surface structure also forms micro-channels, accelerating the absorption and transfer of exudate and preventing its local accumulation. In clinical use, this design ensures both the stability of treatment efficacy and improves the safety of product use.

[0045] In some embodiments, a drawstring structure 2 is provided at the opening 11 of the bag body 1, and the drawstring structure 2 is used to open or close the opening 11.

[0046] In this invention, a drawstring structure 2 is provided at the opening 11 of the bag body 1, offering a convenient and efficient opening and closing solution. The drawstring structure 2 allows medical personnel to quickly fill and seal the sandbag, significantly improving operational efficiency. In practical use, this design is particularly suitable for time-sensitive medical scenarios such as the emergency department. Sealing is achieved with a simple pull action, eliminating the need for complex knotting or other securing operations; this simplified operation greatly reduces the difficulty of use.

[0047] Meanwhile, the drawstring structure 2 provides a more reliable seal compared to traditional binding or adhesive methods. When the drawstring is tightened, it creates a uniform pressure distribution at the opening 11, preventing leakage of the filler from local gaps. This design demonstrates excellent sealing reliability in practical applications, maintaining a good seal even under conditions of high patient activity. Furthermore, the drawstring structure 2 allows medical staff to quickly open the bag 1 when needed, facilitating adjustments to the filler dosage or replacement.

[0048] like Figure 1 As shown, in some embodiments, the opening 11 of the bag body 1 is provided with a sliding channel 15 for engaging the drawstring structure 2.

[0049] In this invention, a dedicated sliding channel 15 is provided to complement the drawstring structure 2, further optimizing the performance of the opening and closing mechanism. The sliding channel 15 primarily solves the problem of potential jamming during drawstring use. The smooth inner wall of the channel ensures smooth sliding of the drawstring, significantly improving operational fluency in practical use. Especially in emergency situations requiring rapid adjustments, the smooth sliding performance ensures unimpeded operation.

[0050] Secondly, the specialized sliding channel 15 design also improves the lifespan of the drawstring. The channel structure protects the drawstring from external damage and prevents wear and tear from repeated use. In clinical applications, this protection ensures stable opening and closing performance throughout the product's lifespan. Simultaneously, the channel structure prevents direct contact between the drawstring and the filler, avoiding the risk of potential cross-contamination.

[0051] like Figure 2-4 As shown, in some embodiments, it further includes: a flexible skeleton structure 16 disposed between the second layer structure 13 and the third layer structure 14, for maintaining the shape of the bag body 1 after the external force is removed.

[0052] In this invention, a flexible skeleton structure 16 is provided between the second layered structure 13 and the third layered structure 14, solving the problem of traditional medical sandbags failing to maintain their shape. The presence of the flexible skeleton structure 16 allows the sandbag to maintain its preset shape even after external force is removed, a characteristic of significant value in clinical applications. When medical personnel adjust the sandbag to the shape best suited to the patient's anatomy, the flexible skeleton reliably maintains this shape, preventing uneven compression caused by sinking or displacement of the filling material. This shape-preserving ability is particularly crucial when used on special areas such as the neck and joints, ensuring a continuous and stable therapeutic effect.

[0053] Meanwhile, the placement of the skeleton structure is carefully designed, positioned between the second and third layers to maintain its shape without affecting the function of the absorbent layer. This sandwich-like design also prevents the skeleton structure from directly contacting the patient's skin or the filler, ensuring safety and extending the product's lifespan. In practical applications, this structural design significantly improves the product's adaptability, allowing it to better fit the body characteristics of different patients.

[0054] like Figure 3 As shown, in some embodiments, the flexible skeleton structure 16 includes: multiple metal wires 161, which extend along the length of the bag body 1, and the two ends of the metal wires 161 adopt arc structures 162 and are connected to the edge sealing area of ​​the bag body 1.

[0055] In this invention, the product performance is further optimized by specifying the detailed implementation of the flexible skeleton structure 16. The design of multiple metal wires 161 extending along the length of the bag body 1 provides uniform support, ensuring that the sandbag maintains a stable shape in any position. The design of rounded ends 162 of the metal wires 161 and connecting them to the sealing area at the edge of the bag body 1 effectively solves the problem of metal support structures easily puncturing the bag body 1 in traditional products. The rounded design not only eliminates sharp corners but also better disperses stress under load, significantly improving the safety and durability of the product.

[0056] In practical applications, this structural design allows the product to adapt to various complex anatomical structures. When used on sensitive areas such as the neck, the rounded ends effectively prevent discomfort to the patient. Simultaneously, the reliable connection to the edge sealing area ensures that the skeletal structure does not shift during use, guaranteeing the stability of the product's performance. This sophisticated structural design significantly enhances the product's safety and practicality.

[0057] like Figure 4 As shown, in some embodiments, the metal wires 161 are arranged in a wavy pattern and are covered with a soft sheath 163.

[0058] This invention improves product performance in several aspects by specifying the wavy arrangement of the metal wires 161 and using a soft sheath. The wavy arrangement design firstly provides better plasticity, making it easier to adjust the sandbag to the desired shape. This wavy structure provides uniform elastic support during deformation, avoiding localized stress concentration and extending the service life of the metal wires 161. In clinical applications, this design allows medical personnel to more precisely adjust the compression pattern, improving treatment effectiveness.

[0059] The soft sheath 163 fundamentally solves the problem of potential wear and tear on the bag body 1 caused by the metal wires 161. The soft sheath 163 not only protects the bag body 1 material but also prevents friction between the metal wires 161, significantly reducing noise during use. This design demonstrates excellent protective performance in practical use, especially in situations requiring frequent shape adjustments. The soft sheath effectively prevents damage to the bag body 1 from the metal wires 161, ensuring the long-term safety of the product.

[0060] like Figure 5-8 As shown, in some embodiments, the bag body 1 can be stably maintained in a straight, arc-shaped, U-shaped, L-shaped, or S-shaped manner by a flexible skeleton structure 16.

[0061] In this invention, the sandbag can maintain multiple shapes through the flexible skeleton structure 16, significantly expanding the product's application range. The design of various shapes, such as straight strips, arcs, U-shapes, L-shapes, and S-shapes, allows the product to adapt to the treatment needs of different body parts. For example, straight strips are suitable for routine compression hemostasis, arcs are suitable for the neck, U-shapes are suitable for posterior cervical spine fixation, L-shapes are suitable for the knee joint, and S-shapes can be used for areas with special anatomical structures. This multi-shape design greatly improves the product's versatility and reduces the need for medical institutions to stock different models.

[0062] In practical applications, medical staff can quickly adjust the product's shape according to specific treatment needs, and the adjusted shape can be stably maintained. This design not only improves the precision of treatment but also reduces the number of repeated adjustments, thereby increasing medical efficiency. At the same time, the multi-form adaptability design also improves the product's cost-effectiveness, allowing a single product to meet the needs of multiple usage scenarios and reducing medical costs.

[0063] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A disposable, soft, skin-friendly medical sandbag cover, characterized in that, Includes a bag body (1), the bag body (1) having a cavity and an opening (11) communicating with the cavity, the bag body (1) comprising: The first layered structure (12) is disposed on the outermost layer of the bag body (1), and the first layered structure (12) is made of skin-friendly non-woven fabric; The second layer structure (13) is disposed in the innermost layer of the bag body (1), and the second layer structure (13) is made of leak-proof material; The third layered structure (14) is sandwiched between the first layered structure (12) and the second layered structure (13), and the third layered structure (14) is made of liquid-absorbing material.

2. The disposable, soft, skin-friendly medical sandbag cover according to claim 1, characterized in that, The second layered structure (13) is made of PE material or biodegradable material.

3. The disposable, soft, skin-friendly medical sandbag cover according to claim 1, characterized in that, The third layer structure (14) is made of superabsorbent polymer.

4. The disposable, soft, skin-friendly medical sandbag cover according to claim 1, characterized in that, The outer surface of the first layered structure (12) is provided with a diamond-shaped mesh (121).

5. The disposable, soft, skin-friendly medical sandbag cover according to claim 1, characterized in that, The bag body (1) is provided with a drawstring structure (2) at the opening (11), and the drawstring structure (2) is used to open or close the opening (11).

6. The disposable, soft, skin-friendly medical sandbag cover according to claim 5, characterized in that, The bag body (1) has a sliding channel (15) at the opening (11) for cooperating with the drawstring structure (2).

7. The disposable, soft, skin-friendly medical sandbag cover according to any one of claims 1-6, characterized in that, Also includes: A flexible skeleton structure (16) is disposed between the second layered structure (13) and the third layered structure (14) to maintain the shape of the bag body (1) after the external force is removed.

8. The disposable, soft, skin-friendly medical sandbag cover according to claim 7, characterized in that, The flexible skeleton structure (16) includes: Multiple metal wires (161) are provided, extending along the length of the bag body (1). The two ends of the metal wires (161) adopt an arc structure (162) and are connected to the edge sealing area of ​​the bag body (1).

9. The disposable, soft, skin-friendly medical sandbag cover according to claim 8, characterized in that, The metal wires (161) are arranged in a wavy pattern and are covered with a soft sheath (163).

10. The disposable, soft, skin-friendly medical sandbag cover according to claim 7, characterized in that, The bag body (1) can be stably maintained in a straight strip, arc, U-shape, L-shape or S-shape by the flexible skeleton structure (16).