Disposable transfer nursing drawsheet
By designing a composite polymer drape assembly and an ∞-shaped handle hole transfer drape, the safety and comfort issues during patient transfer were resolved, improving safety and durability and simplifying the nursing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-31
AI Technical Summary
Existing disposable mattresses cannot simplify the patient transfer process, pose safety and comfort issues, and frequent replacements increase the complexity and cost of care.
A disposable transfer care sheet comprising a composite polymer sheet assembly and a handle assembly has been designed. It features a multi-layer structure and ∞-shaped handle holes to enhance safety and durability, and incorporates an ergonomic design for easy operation by healthcare personnel.
It improves the safety and comfort of patient transfer, simplifies nursing procedures, reduces the risk of injury to nursing staff, and decreases the frequency and cost of patient changes.
Smart Images
Figure CN224056193U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical appliance technical field more specifically, relate to a kind of disposable transfer nursing pad. BACKGROUND
[0002] In medical institutions, due to operation, disease or age and other factors, patients who are in bed for a long time are usually unable to move positions by themselves due to their physical conditions. In this case, the daily transfer of patients or the simple changing of bed linen and position adjustment all require professional nursing staff to intervene and assist. However, during the transfer process, patients often cannot cooperate due to their weak bodies, which makes the entire transfer process full of uncertainty, and any carelessness can cause injury to the patient or the nurse.
[0003] According to statistics from the American Nurses Association (ANA), the number of nurses injured at work far exceeds the average level of occupational injuries in the United States, and one of the main reasons for the injury of nurses is the movement of patients.
[0004] In addition to the above safety issues, ensuring the comfort of patients is also important. Given that patients who are in bed for a long time often have symptoms such as incontinence, they need to frequently change disposable bed pads to keep the bed surface dry and prevent the aggravation of bedsores, which undoubtedly increases the additional cost and the complexity of transfer.
[0005] Currently, traditional disposable bed pads do not have the function of transferring patients, and only serve the purpose of moisture absorption and leakage prevention. There is an urgent need for an innovative product that can ensure moisture prevention and cleanliness while simplifying the patient transfer process to improve nursing efficiency and ensure the safety and comfort of patients.
[0006] The foregoing narrative is intended to provide general background information and may not necessarily constitute the prior art. CONTENT OF THE UTILITY MODEL
[0007] The utility model aims to provide a kind of disposable transfer nursing pad, which effectively improves the safety and durability of use, ensuring the safety and comfort of patients.
[0008] Firstly, the utility model provides a kind of disposable transfer nursing pad, including composite macromolecular pad assembly and handle assembly;The composite macromolecular pad assembly and the handle assembly are all rectangular, and the handle assembly is connected at the edge of the composite macromolecular pad assembly two side long sides, and a plurality of handle holes are set on the handle assembly at equal intervals, and the handle hole is ∞-shaped;The composite macromolecular pad assembly includes skin-friendly nonwoven layer, hot melt adhesive layer, upper paper towel layer, macromolecular water-absorbing resin layer, fluff pulp layer, lower paper towel layer and bottom layer of film-coated nonwoven layer;Skin-friendly nonwoven layer, upper paper towel layer, macromolecular water-absorbing resin layer, fluff pulp layer, lower paper towel layer and bottom layer of film-coated nonwoven layer are connected in sequence, and hot melt adhesive layer is provided between skin-friendly nonwoven layer and upper paper towel layer and between lower paper towel layer and bottom layer of film-coated nonwoven layer.
[0009] Further, the handle assembly is a multilayer structure.
[0010] Further, the skin-friendly nonwoven layer is PP nonwoven fabric.
[0011] Further, the bottom layer of film-coated nonwoven layer is PU film-coated nonwoven fabric.
[0012] Further, the static friction coefficient of the bottom layer of film-coated nonwoven layer is 0.33-0.45, the dynamic friction coefficient is 0.34-0.40, and the grammage is 115±20g / m 2 .
[0013] Secondly, the utility model further provides a handle hole forming method, which is applied to the disposable transfer nursing pad.
[0014] Further, the forming method comprises the following steps:
[0015] S1: assuming that there are two handle assemblies with the same hair cross-sectional area and tensile strength, the handle assemblies have oval holes and ∞-shaped holes respectively, and the long axis and short axis dimensions of the two are equal, i.e.
[0016]
[0017] In the formula, a ellipse And a infinite Respectively, the long axis dimension of the oval hole and the ∞-shaped hole, b ellipse And b infinite Respectively, the short axis dimension of the oval hole and the ∞-shaped hole;
[0018] S2: when a constant pulling force P is applied to the handle hole edge, the pulling force is transmitted between the effective bearing surface of the handle assembly and stress is generated, i.e.
[0019]
[0020] In the formula, σ0 is the nominal stress without pores, σ nom The nominal tensile force is given by the orifice, and L and t are the component length and thickness, respectively.
[0021] S3: Stress concentration occurs at both ends of the major axis of the elliptical hole, resulting in maximum stress. The theoretical stress concentration factor K can be used to express this as:
[0022]
[0023] In the formula, K t0 K is the stress concentration factor for pore-free structures. tn The stress concentration factor for pores;
[0024] S4: K in step S3 tn It can be simplified to Based on this, the optimal opening size can be obtained.
[0025] This utility model's disposable transfer nursing pad features an ∞-shaped handle hole, which, compared to the traditional elliptical handle hole, has a higher elongation at break and a lower theoretical stress concentration coefficient. This effectively reduces stress concentration, allowing it to withstand greater tensile force and significantly improving safety and durability. Its contour shape is more ergonomically designed for easy gripping by medical staff. The composite polymer pad assembly employs a multi-layered composite structure; the surface layer has good hydrophilicity and excellent tear resistance; the core has strong water absorption and good sealing; and the bottom layer has good hydrophobicity and a low coefficient of friction. The overall structure is compact and rationally designed, significantly improving the efficiency of medical staff's care while ensuring patient safety and comfort, while balancing the product's absorbency, breathability, and durability. Attached Figure Description
[0026] Figure 1 A schematic diagram of the structure of the disposable transfer nursing pad provided in this embodiment of the utility model.
[0027] Figure 2 for Figure 1 A schematic diagram of the composite polymer sheet component of the disposable transfer nursing sheet.
[0028] Figure 3 for Figure 1 A schematic diagram of the molding process of composite polymer sheet components for disposable transfer nursing sheets.
[0029] Figure 4 A schematic diagram of the handle hole forming method provided in this embodiment of the utility model.
[0030] The reference numerals and components involved in the accompanying drawings are shown below:
[0031] 100. composite polymer pad single unit
[0032] 110. surface skin layer of skin-friendly nonwoven fabric
[0033] 120. hot melt adhesive layer
[0034] 130. upper tissue layer
[0035] 140. polymer water-absorbing resin layer
[0036] 150. fluff pulp layer
[0037] 160. lower tissue layer
[0038] 170. bottom layer of laminated nonwoven fabric
[0039] 200. handle assembly
[0040] 210. handle hole DETAILED DESCRIPTION
[0041] The specific embodiments of the present application will be further described in detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.
[0042] The terms "first", "second", "third", "fourth" and the like in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence.
[0043] Example 1
[0044] Figure 1 The structure diagram of the disposable transfer nursing pad single provided by the embodiment of the present application is shown in the figure, Figure 2 is Figure 1 The structure diagram of the composite polymer pad single assembly of the disposable transfer nursing pad single is shown in the figure. Please refer to Figure 1 , Figure 2The utility model discloses a disposable transfer nursing pad, including composite high polymer pad assembly 100 and handle assembly 200, the composite high polymer pad assembly 100 and handle assembly 200 are all rectangular, and the handle assembly 200 is connected at the edge mouth of the two side long sides of the composite high polymer pad assembly 100, a plurality of handle holes 210 are provided on the handle assembly 200 at equal intervals, and the handle hole 210 is in the shape of ∞, the composite high polymer pad assembly 100 includes surface skin non -woven cloth layer 110, hot melt adhesive layer 120, upper paper towel layer 130, high polymer water -absorbent resin layer 140, fluff pulp layer 150, lower paper towel layer 160 and bottom layer of shower membrane non -woven cloth layer 170, surface skin non -woven cloth layer 110, upper paper towel layer 130, high polymer water -absorbent resin layer 140, fluff pulp layer 150, lower paper towel layer 160 and bottom layer of shower membrane non -woven cloth layer 170 are connected in order and are stacked, and hot melt adhesive layer 120 is arranged between surface skin non -woven cloth layer 110 and upper paper towel layer 130 and between lower paper towel layer 160 and bottom layer of shower membrane non -woven cloth layer 170.
[0045] The utility model discloses a disposable transfer nursing pad, ∞ handle hole 210, compared with traditional oval handle hole has higher breakage elongation and lower theoretical stress concentration coefficient, can effectively reduce stress concentration, makes it can bear greater tension, effectively improves the security and durability of use, and its contour shape is more in line with the ergonomic design, and the medical staff is convenient for gripping, and the composite high polymer pad assembly 100 adopts multilayer composite structure, and the surface skin has good hydrophilicity and has excellent tear resistance, and the core water absorption is strong, and the sealing property is good, and the bottom hydrophobicity is good, and the friction coefficient is low, and the overall structure design is compact and reasonable, and the nursing efficiency of medical staff is improved significantly while weighing the water absorption, the air permeability and the durability of product, and the safety and comfort of patient are ensured.
[0046] Figure 3 For Figure 1 The composite high polymer pad assembly of the disposable transfer nursing pad is formed by the process shown in the figure. Figure 3 As shown, the fluff pulp layer 150 is crushed by a pulverizer, mixed with SAP (high polymer water -absorbent resin layer 140), coated as a core by the upper paper towel layer 130 and the lower paper towel layer 160, and glued between the surface skin non -woven cloth layer 110 and the bottom layer of shower membrane non -woven cloth layer 170 by the hot melt adhesive layer 120 after cutting, to form the composite high polymer pad assembly 100.
[0047] It should be noted that the size of the core is smaller than the surface layer and the top layer, which can be effectively glued inside the two, preventing liquid from leaking out of the pad.
[0048] Further, the handle assembly 200 of the utility model is a multilayer structure.
[0049] It should be noted that the handle body 200 is made of rectangular strip non-woven fabric folded along the center line and then ultrasonically welded or sewn together with the long side of the transfer pad body 100.
[0050] Furthermore, the surface skin-friendly nonwoven fabric layer 110 of this utility model is made of hydrophilic nonwoven fabric material, so that liquids such as sweat and urine can effectively penetrate through the layer; at the same time, during the process of transferring patients, the surface and bottom layers of the sheet will be subjected to large shear forces, so the material used for the surface skin-friendly nonwoven fabric layer 110 should have excellent tear resistance; in this embodiment, the surface skin-friendly nonwoven fabric layer 110 is made of PP nonwoven fabric.
[0051] Furthermore, the bottom layer of nonwoven fabric 170 of this invention is composed of nonwoven fabric with a low-friction bottom membrane, which can effectively reduce friction during the transfer process and block liquid penetration. That is, the bottom membrane can significantly reduce the force required to transfer the patient to reduce the risk of injury. In this embodiment, the bottom layer of nonwoven fabric 170 is made of PU nonwoven fabric.
[0052] Furthermore, the static friction coefficient of the bottom nonwoven fabric layer 170 of this invention is 0.33-0.45, the dynamic friction coefficient is 0.34-0.40, and the basis weight is 115±20g / m². 2 This ensures that the patient will not slip and fall off the bed due to the transfer pad, and that medical staff can complete the transfer operation without applying too much force.
[0053] This utility model also provides a method for forming handle holes, which is applied to the above-mentioned disposable transfer nursing pad.
[0054] Figure 4 A schematic diagram of the handle hole forming method provided in this embodiment of the utility model.
[0055] like Figure 4 As shown, the molding method of this utility model includes the following steps:
[0056] S1: Assume there are two handle assemblies with the same gross cross-sectional area and tensile strength. The handle assemblies have an elliptical hole and an ∞-shaped hole, respectively, and their major and minor axes are equal.
[0057]
[0058] In the formula, a ellipse With a infinite Here are the major axis dimensions of the elliptical hole and the ∞-shaped hole, respectively, b. ellipse With b infinite These are the minor axis dimensions of the elliptical hole and the ∞-shaped hole, respectively;
[0059] S2: When a constant pulling force P is applied to the edge of the handle hole, the pulling force is transmitted between the effective bearing surface of the handle assembly and stress is generated, i.e.:
[0060]
[0061] wherein σ0 is the nominal stress without holes, σ nom is the nominal pulling force with holes, L and t are the length and thickness of the assembly, respectively;
[0062] S3: The oval hole generates stress concentration at both ends of the long axis and generates the maximum stress The theoretical stress concentration coefficient K can be expressed as:
[0063]
[0064] wherein K t0 is the stress concentration coefficient without holes; K tn is the stress concentration coefficient with holes;
[0065] S4: K tn in step S3 can be simplified as Based on this, the optimal opening size can be obtained.
[0066] It should be noted that the curve transition at the end point of the ∞-shaped hole is smoother than that at both ends of the long axis of the oval hole, and the curvature change is relatively small, and the theoretical stress concentration coefficient K infinite is less than K ellipse , and thus the ∞-shaped hole can withstand a greater pulling force than the oval hole.
[0067] Further, through the ASTM D882 test, the ∞-shaped hole has a higher breaking elongation than the traditional oval hole due to the concave feature in the middle. Meanwhile, in the embodiment, the handle component is made of non-woven fabric, and due to the two-dimensional isotropic characteristics of the fabric surface, the tear strength can reach 98.5-138.5 lbf. In addition, the contour shape is more in line with ergonomics, which is convenient for medical staff to grip.
[0068] Based on the above description, the utility model has the advantages of:
[0069] The utility model discloses a disposable transfer nursing pad, the contour shape is more in accord with the ergonomics design, and the medical staff is convenient to grasp, and the composite macromolecular pad assembly adopts multilayer composite structure, and the surface hydrophilic is good, and has excellent tear resistance, and the core water absorption is strong, and the sealing property is good, and the bottom hydrophobicity is good, and the friction coefficient is low, and the overall structure design is compact and reasonable, and the nursing efficiency of medical staff is improved significantly while weighing the water absorption, the air permeability and the durability of product, and the safety and comfort of patient are ensured.
[0070] The above is only the specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, and any skilled person in the art can easily think of the change or replacement within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be the protection scope of the claims.
Claims
1. A disposable transfer care pad sheet characterized by, The composite polymer pad single assembly (100) and the handle assembly (200) are both rectangular, the handle assembly (200) is connected at the edge opening of the two side long edges of the composite polymer pad single assembly (100), a plurality of handle holes (210) are arranged on the handle assembly (200) at equal intervals, and the handle holes (210) are in the shape of ∞. The composite polymer pad single assembly (100) comprises a skin-friendly non-woven fabric layer (110), a hot melt adhesive layer (120), an upper paper towel layer (130), a polymer water-absorbing resin layer (140), a fluff pulp layer (150), a lower paper towel layer (160) and a bottom layer of a laminated non-woven fabric layer (170). The skin-friendly non-woven fabric layer (110), the upper paper towel layer (130), the polymer water-absorbing resin layer (140), the fluff pulp layer (150), the lower paper towel layer (160) and the bottom layer of the laminated non-woven fabric layer (170) are sequentially connected, and the hot melt adhesive layers (120) are arranged between the skin-friendly non-woven fabric layer (110) and the upper paper towel layer (130) and between the lower paper towel layer (160) and the bottom layer of the laminated non-woven fabric layer (170). The handle assembly (200) is a multi-layer structure.
2. The disposable transfer nursing pad ensemble of Claim 1, wherein, The skin-friendly non-woven fabric layer (110) is PP non-woven fabric.
3. The disposable transfer nursing pad ensemble of Claim 1 wherein, The bottom layer of the laminated non-woven fabric layer (170) is PU laminated non-woven fabric.
4. The disposable transfer nursing pad ensemble of Claim 1 wherein, 5. The disposable transfer nursing pad ensemble of Claim 4 wherein, The static friction coefficient of the bottom layer of the membrane non-woven fabric layer (170) is 0.33-0.45, the dynamic friction coefficient is 0.34-0.40, and the grammage is 115±20 g / m 2 .