Chitin medical pad
Patent Information
- Application Number
- CN202521840262.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-28
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-08-28
AI Technical Summary
然而,现有医用垫单依然存在以下问题:1、现有医用垫单采用单层或简单多层结构,吸水层材质单一且缺乏导液结构,液体易在局部积聚并快速渗透至底层,导致床面污染,增加医护人员清洁负担,甚至容易引发交叉感染风险;2、现有医用垫单与患者皮肤接触的表层材质亲肤性差,易引发皮肤刺激,且缺乏抗菌防护结构,在使用中容易滋生细菌,不利于患者伤口愈合或康复
1、本实用新型使用时,诊疗过程中产生的液体先渗透过体表接触层的粘胶纤维亲肤绒面层和硅酮防粘连涂层,经聚乳酸透气孔膜的透气孔进入抗菌防护层,再依次穿过甲壳素纤维编织层、含银离子的无纺布抗菌层和尼龙隔离滤网,进入液体管理层,液体先被脱脂棉初级吸水棉初步吸收,再通过聚酯纤维导液沟槽层的条形沟槽有序引导至高吸水性树脂超强锁水芯,其蜂窝状结构可高效锁存液体,最后经基础承载层中聚乙烯防渗膜的二次阻挡,彻底避免液体渗透至诊疗床面,通过多层协同作用,提升液体处理能力,确保床面清洁无污染;
Smart Images

Figure CN224655556U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical and nursing supplies technology, and in particular to a chitosan medical pad. Background Technology
[0002] Medical sheets are essential consumables in medical diagnosis and treatment and nursing. They are mainly laid on the surface of examination beds, operating tables or hospital beds to isolate patients from the bed surface, absorb blood, body fluids, medicines and other liquids generated during diagnosis and treatment, prevent contaminants from penetrating and contaminating the bed, and provide patients with a relatively clean and comfortable contact interface. They are widely used in operating rooms, emergency rooms, wards and other scenarios. However, existing medical sheets still have the following problems: 1. Existing medical sheets use a single layer or simple multi-layer structure, with a single absorbent layer material and a lack of liquid-wicking structure. Liquid easily accumulates locally and quickly seeps to the bottom layer, leading to bed surface contamination, increasing the cleaning burden on medical staff, and even easily causing cross-infection risks; 2. The surface material of existing medical sheets that comes into contact with the patient's skin has poor skin affinity, easily causing skin irritation, and lacks antibacterial protective structure, making it easy for bacteria to grow during use, which is not conducive to wound healing or recovery for patients. Therefore, we have launched a chitosan medical sheet. Utility Model Content
[0003] The main purpose of this invention is to provide a chitosan medical pad that can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A chitosan medical pad includes a base support layer, a liquid management layer, an antibacterial protective layer, and a body contact layer; The basic bearing layer includes a rubber anti-slip base cloth, a polyethylene impermeable membrane, and a polypropylene rigid support layer; The liquid management layer includes degreased cotton primary absorbent cotton, polyester fiber liquid guiding groove layer, and super absorbent resin super water-locking core; The antibacterial protective layer includes a nylon isolation filter, a non-woven antibacterial layer containing silver ions, and a chitin fiber woven layer; The body surface contact layer includes a polylactic acid breathable membrane, a silicone anti-adhesion coating, and a viscose fiber skin-friendly fleece layer.
[0005] Preferably, the polyethylene geomembrane is disposed on the upper surface of the rubber anti-slip base cloth, and the polypropylene rigid support layer is disposed on the upper surface of the polyethylene geomembrane.
[0006] By adopting the above technical solution: the rigid polypropylene support layer ensures the overall flatness of the gasket, and the polyethylene geomembrane prevents liquid from seeping downwards, thus improving the basic protection capability.
[0007] Preferably, the primary absorbent cotton is disposed on the upper surface of the polypropylene rigid support layer, the polyester fiber liquid-guiding groove layer is disposed on the upper surface of the primary absorbent cotton, and the super absorbent resin super water-locking core is disposed on the upper surface of the polyester fiber liquid-guiding groove layer.
[0008] By adopting the above technical solutions, a layered and progressive liquid treatment system is constructed to achieve initial absorption, orderly guidance and efficient storage of liquid, thereby reducing liquid accumulation and leakage.
[0009] Preferably, the nylon isolation filter is disposed on the upper surface of the super absorbent resin super water-locking core, the silver ion-containing non-woven antibacterial layer is disposed on the upper surface of the nylon isolation filter, and the chitin fiber woven layer is disposed on the upper surface of the silver ion-containing non-woven antibacterial layer.
[0010] By adopting the above technical solutions, multiple antibacterial barriers are formed. The nylon isolation filter prevents substances inside the super absorbent resin core from seeping up. The non-woven fabric containing silver ions and the chitin fiber woven layer work together to inhibit bacterial growth and improve the antibacterial effect.
[0011] Preferably, the polylactic acid breathable membrane is disposed on the upper surface of the chitosan fiber woven layer, the silicone anti-adhesion coating is disposed on the upper surface of the polylactic acid breathable membrane, and the viscose fiber skin-friendly fleece layer is disposed on the upper surface of the silicone anti-adhesion coating.
[0012] By adopting the above technical solutions, the comfort and functionality of skin contact are balanced: the viscose fiber skin-friendly fleece layer enhances the tactile feel, the silicone anti-adhesion coating reduces skin adhesion, and the polylactic acid breathable membrane ensures breathability.
[0013] Preferably, the lower surface of the rubber anti-slip base cloth has a number of raised textures.
[0014] By adopting the above technical solution, the friction between the sheet and the bed surface is increased, preventing the sheet from shifting during use and enhancing the stability of the installation.
[0015] Preferably, the surface of the polyester fiber liquid-guiding groove layer is provided with interconnected strip grooves, and the interior of the super absorbent resin water-locking core has a honeycomb structure.
[0016] By adopting the above technical solutions: the strip grooves accelerate the diffusion and guidance of liquid, and the honeycomb structure enhances the water absorption capacity and water-locking efficiency of the super absorbent resin core, thus optimizing the liquid processing speed.
[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. When this utility model is used, the liquid generated during the diagnosis and treatment process first penetrates the skin-friendly viscose fiber fleece layer and silicone anti-adhesion coating of the body surface contact layer, enters the antibacterial protective layer through the pores of the polylactic acid breathable membrane, and then passes through the chitin fiber woven layer, the silver ion-containing non-woven antibacterial layer and the nylon isolation filter in sequence to enter the liquid management layer. The liquid is first initially absorbed by the primary absorbent cotton, and then orderly guided to the super absorbent resin super water-locking core through the strip grooves of the polyester fiber liquid guiding groove layer. Its honeycomb structure can efficiently lock in the liquid. Finally, the liquid is completely prevented from penetrating to the treatment bed surface by the secondary barrier of the polyethylene anti-seepage membrane in the basic bearing layer. Through the synergistic effect of multiple layers, the liquid treatment capacity is improved, ensuring that the bed surface is clean and free from pollution. 2. When this utility model is used, the raised texture on the lower surface of the rubber anti-slip base cloth in the basic bearing layer can enhance the friction with the treatment bed surface. Combined with the flat support of the polypropylene rigid support layer, it effectively prevents the drape from shifting when the patient moves. The skin-friendly viscose fiber fleece layer in the skin contact layer provides a soft contact experience for the patient. The silicone anti-adhesion coating can prevent the skin from sticking to the drape and reduce skin irritation. At the same time, the chitin fiber woven layer and the silver ion-containing non-woven antibacterial layer in the antibacterial protective layer form a double antibacterial barrier, which can inhibit the growth of bacteria in the liquid and reduce the risk of infection. It improves the safety of use from multiple dimensions such as stability, skin-friendliness, and antibacterial properties, and ensures the smooth progress of the diagnosis and treatment process. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of a chitosan medical pad according to the present invention; Figure 2 This is an exploded view of the overall structure of a chitosan medical liner of this utility model; Figure 3 This is an exploded view of the basic load-bearing layer of a chitosan medical pad according to this utility model; Figure 4 This is an exploded view of the liquid management layer of a chitosan medical diaphragm according to this utility model. Figure 5 This is an exploded view of the structure of the antibacterial protective layer of a chitosan medical pad according to this utility model; Figure 6 This is an exploded view of the surface contact layer of a chitosan medical pad according to this utility model.
[0019] In the diagram: 1. Base bearing layer; 2. Liquid management layer; 3. Antibacterial protective layer; 4. Skin contact layer; 11. Rubber anti-slip base cloth; 12. Polyethylene geomembrane; 13. Polypropylene rigid support layer; 21. Degreased cotton primary absorbent cotton; 22. Polyester fiber liquid guiding groove layer; 23. High absorbency resin super water-locking core; 31. Nylon isolation filter; 32. Silver ion-containing non-woven antibacterial layer; 33. Chitosan fiber woven layer; 41. Polylactic acid breathable membrane; 42. Silicone anti-adhesion coating; 43. Viscose fiber skin-friendly fleece layer. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] Please see Figure 1-6 This utility model provides a technical solution: A chitosan medical pad includes a base support layer 1, a liquid management layer 2, an antibacterial protective layer 3, and a body surface contact layer 4; The basic bearing layer 1 includes a rubber anti-slip base cloth 11, a polyethylene geomembrane 12, and a polypropylene rigid support layer 13; The liquid management layer 2 includes a primary absorbent cotton layer 21, a polyester fiber liquid-guiding groove layer 22, and a super absorbent resin water-locking core 23; The antibacterial protective layer 3 includes a nylon isolation filter 31, a non-woven antibacterial layer containing silver ions 32, and a chitin fiber woven layer 33; The body surface contact layer 4 includes a polylactic acid breathable membrane 41, a silicone anti-adhesion coating 42, and a viscose fiber skin-friendly fleece layer 43.
[0024] In this embodiment, a polyethylene geomembrane 12 is disposed on the upper surface of a rubber anti-slip base cloth 11, and a polypropylene rigid support layer 13 is disposed on the upper surface of the polyethylene geomembrane 12; a degreased cotton primary absorbent cotton 21 is disposed on the upper surface of the polypropylene rigid support layer 13, a polyester fiber liquid-guiding groove layer 22 is disposed on the upper surface of the degreased cotton primary absorbent cotton 21, and a super absorbent resin super water-locking core 23 is disposed on the upper surface of the polyester fiber liquid-guiding groove layer 22; a nylon isolation filter 31 is disposed on the upper surface of the super absorbent resin super water-locking core 23, and a silver ion-containing nonwoven antibacterial layer 32 is disposed on the upper surface of the nylon isolation filter 31. On the upper surface of the filter screen 31, a chitosan fiber woven layer 33 is disposed on the upper surface of the silver ion-containing nonwoven antibacterial layer 32; a polylactic acid breathable membrane 41 is disposed on the upper surface of the chitosan fiber woven layer 33; a silicone anti-adhesion coating 42 is disposed on the upper surface of the polylactic acid breathable membrane 41; a viscose fiber skin-friendly fleece layer 43 is disposed on the upper surface of the silicone anti-adhesion coating 42; a number of raised textures are distributed on the lower surface of the rubber anti-slip base cloth 11; the surface of the polyester fiber liquid guiding groove layer 22 is provided with interconnected strip grooves; and the interior of the super absorbent resin water-locking core 23 has a honeycomb structure.
[0025] It should be noted that this utility model is a chitosan medical sheet. In use, the rubber anti-slip base fabric 11 in the base support layer 1 is laid face down on the surface of the treatment bed. The raised texture on its lower surface enhances the friction with the bed surface, preventing the sheet from shifting. The polypropylene rigid support layer 13 is unfolded to keep it flat, providing stable support for the entire sheet. The polyethylene impermeable membrane 12 is located between the rubber anti-slip base fabric 11 and the polypropylene rigid support layer 13, forming basic protection. The patient lies on the viscose fiber skin-friendly fleece layer 43 of the skin contact layer 4. The silicone anti-adhesion coating 42 directly contacts the patient's skin, preventing the skin from sticking to the sheet. Liquids generated during treatment permeate through the viscose fiber skin-friendly... The velvet layer 43 and the silicone anti-adhesion coating 42 enter the polylactic acid breathable membrane 41 and permeate downwards through its pores to the chitin fiber woven layer 33 of the antibacterial protective layer 3. After being treated by the chitin fiber woven layer 33, the liquid passes through the silver ion-containing non-woven antibacterial layer 32 and the nylon isolation filter 31 and enters the liquid management layer 2. The liquid is absorbed by the degreased cotton primary absorbent cotton 21 and then guided through the strip grooves of the polyester fiber liquid guiding groove layer 22 to the super absorbent resin super water-locking core 23. Its honeycomb structure locks in the liquid and prevents leakage. The polyethylene impermeable membrane 12 prevents liquid penetration and ensures that the treatment bed surface below the basic bearing layer 1 is not contaminated. After the treatment, the sheet can be removed.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A chitosan medical pad, characterized in that: It includes a base bearing layer (1), a liquid management layer (2), an antibacterial protective layer (3), and a body surface contact layer (4). The basic bearing layer (1) includes a rubber anti-slip base cloth (11), a polyethylene geomembrane (12), and a polypropylene rigid support layer (13). The liquid management layer (2) includes degreased cotton primary absorbent cotton (21), polyester fiber liquid guiding groove layer (22), and super absorbent resin super water-locking core (23). The antibacterial protective layer (3) includes a nylon isolation filter (31), a non-woven antibacterial layer containing silver ions (32), and a chitin fiber woven layer (33). The body surface contact layer (4) includes a polylactic acid breathable membrane (41), a silicone anti-adhesion coating (42), and a viscose fiber skin-friendly velvet layer (43).
2. The chitosan medical pad according to claim 1, characterized in that: The polyethylene geomembrane (12) is disposed on the upper surface of the rubber anti-slip base cloth (11), and the polypropylene rigid support layer (13) is disposed on the upper surface of the polyethylene geomembrane (12).
3. The chitosan medical pad according to claim 1, characterized in that: The primary absorbent cotton (21) is disposed on the upper surface of the polypropylene rigid support layer (13), the polyester fiber liquid guiding groove layer (22) is disposed on the upper surface of the primary absorbent cotton (21), and the super absorbent resin super water-locking core (23) is disposed on the upper surface of the polyester fiber liquid guiding groove layer (22).
4. The chitosan medical pad according to claim 1, characterized in that: The nylon isolation filter (31) is disposed on the upper surface of the super absorbent resin super water-locking core (23), the silver ion-containing non-woven antibacterial layer (32) is disposed on the upper surface of the nylon isolation filter (31), and the chitin fiber braided layer (33) is disposed on the upper surface of the silver ion-containing non-woven antibacterial layer (32).
5. A chitosan medical pad according to claim 1, characterized in that: The polylactic acid breathable membrane (41) is disposed on the upper surface of the chitin fiber woven layer (33), the silicone anti-adhesion coating (42) is disposed on the upper surface of the polylactic acid breathable membrane (41), and the viscose fiber skin-friendly velvet layer (43) is disposed on the upper surface of the silicone anti-adhesion coating (42).
6. A chitosan medical pad according to claim 1, characterized in that: The lower surface of the rubber anti-slip base cloth (11) has several raised textures.
7. A chitosan medical pad according to claim 1, characterized in that: The surface of the polyester fiber liquid-guiding groove layer (22) is provided with interconnected strip grooves, and the interior of the super absorbent resin water-locking core (23) has a honeycomb structure.