A breathable waterproof surgical drape

Abstract

The utility model discloses a kind of breathable waterproof surgical pad, comprising: skin layer;Bacteriostatic layer, it is set below the skin layer, for inhibiting bacterial growth;Absorption layer, it is set below the bacteriostatic layer, for absorbing liquid;Waterproof breathable layer, it is set below the absorption layer;The waterproof breathable layer includes first pad layer in first area and second pad layer in second area;The second area is located at the periphery of the first area, and the first pad layer and the second pad layer are compounded by seamless welding process;The first pad layer has first air-permeable aperture and first air-permeable rate;The second pad layer has second air-permeable aperture and second air-permeable rate;The first air-permeable rate is greater than second air-permeable rate;In the utility model, first area corresponds patient core body temperature area, and second area corresponds patient accidental contact area.The utility model meets the different area for permeation protection and humidity emission differentiation requirement in surgical process to some extent.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a breathable and waterproof surgical pad. Background Technology

[0002] Surgical drapes are a key auxiliary material in surgical procedures, widely used to isolate surgical areas, absorb bodily fluids, and prevent cross-infection.

[0003] These products typically employ a multi-layered composite structure to achieve their basic functions, including a skin-friendly layer that comes into direct contact with the skin, an antibacterial middle layer, an absorbent layer for liquid management, and a bottom barrier layer. A long-standing technical challenge in the industry lies in balancing waterproof performance with breathability and comfort; a single material or a uniform structural design often fails to meet both requirements simultaneously.

[0004] Current surgical drapes mostly use a uniform waterproof and breathable membrane as the bottom barrier material. While this design provides basic protection, it cannot meet the varying requirements for penetration protection and moisture dissipation in different areas during surgery. Utility Model Content

[0005] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a breathable and waterproof surgical drape. In this invention, the waterproof and breathable layer is divided into a first drape located in a first region and a second drape located in a second region. The first region corresponds to the patient's core body temperature zone, and the second region corresponds to the area where the patient may have accidental contact. This invention, to a certain extent, meets the differentiated requirements for penetration protection and moisture dissipation in different areas during surgery.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a breathable and waterproof surgical drape, comprising:

[0008] The skin-friendly layer is for contact with the skin.

[0009] An antibacterial layer, disposed beneath the skin-friendly layer, is used to inhibit bacterial growth;

[0010] An absorbent layer, disposed below the antibacterial layer, is used to absorb liquid;

[0011] A waterproof and breathable layer is disposed below the absorbent layer; the waterproof and breathable layer includes a first padding layer located in a first region and a second padding layer located in a second region; the second region is located around the first region, and the first padding layer and the second padding layer are composited by a seamless welding process; the first padding layer has a first pore size and a first air permeability; the second padding layer has a second pore size and a second air permeability; the first air permeability is greater than the second air permeability.

[0012] Furthermore, the area ratio of the first region to the second region is 1:2 to 5:1.

[0013] Furthermore, the area ratio of the first region to the second region is 2.5:1.

[0014] Furthermore, the first region is elliptical in shape.

[0015] Furthermore, the shape of the first region includes a rectangular main body and two semi-circular ends, which are tangentially connected to the two opposite sides of the rectangular main body and form a smoothly transitioning convex structure.

[0016] Furthermore, the air permeability of the first cushion layer in the first region is not less than 8000 g / m² / 24h;

[0017] The hydrostatic pressure of the second cushion layer in the second region shall not be less than 8000 Pa.

[0018] Furthermore, the periphery of the skin-friendly layer extends toward the waterproof and breathable layer and at least covers a portion of the second padding layer in the second region.

[0019] Furthermore, the periphery of the skin-friendly layer extends towards the waterproof and breathable layer, completely enveloping the second padding layer in the second region, and at least enveloping a portion of the first padding layer in the first region.

[0020] Furthermore, the periphery of the skin-friendly layer extends towards the waterproof and breathable layer, completely enveloping the waterproof and breathable layer; the skin-friendly layer is hollow and closed.

[0021] This utility model has at least the following advantages or beneficial effects:

[0022] This invention employs a zoned waterproof and breathable layer structure. This structure, by placing a high-breathability first pad in a first zone and a high-hydrostatic-pressure second pad in a surrounding second zone, effectively enhances the breathability of the central part of the drape while strengthening the surrounding liquid barrier. Furthermore, a seamless welding process is used to composite pads with different properties, ensuring a strong connection between layers without compromising their individual functional integrity. Overall, this invention effectively balances the varying needs for moisture dissipation and liquid protection in different areas during surgery.

[0023] This invention employs an elliptical or racetrack-shaped structure for the first region. This structure allows the highly breathable area to better conform to the shape of the part in contact with the human body, while the smooth edges of the elliptical or racetrack shape reduce stress concentration. Overall, this invention improves the comfort and structural reliability of the mattress pad.

[0024] This invention employs a hollow, sealed structure where the skin-friendly layer completely encloses the entire waterproof and breathable layer. This structure effectively seals the core functional layer within the skin-friendly layer, thoroughly isolating it from external contaminants and protecting the internal structure from damage during use. Overall, this invention provides a more reliable and hygienic packaging method. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a breathable and waterproof surgical pad according to the present invention;

[0027] Figure 2 This is a front view of a breathable and waterproof surgical pad structure according to this utility model;

[0028] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the middle AA section;

[0029] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of BB.

[0030] Figure label:

[0031] 1-Skin-friendly layer; 2-Antibacterial layer; 3-Absorbent layer; 4-Waterproof and breathable layer; 41-First padding layer; 42-Second padding layer. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0034] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various parts or elements of this utility model and do not specifically refer to any part or element in this utility model. They should not be construed as limitations on this utility model.

[0036] In this utility model, terms such as "fixed", "connected", and "linked" should be interpreted broadly, indicating that it can be a fixed connection, an integral connection, or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. For relevant scientific researchers or technicians in this field, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.

[0037] The embodiments of this utility model will be described in detail below.

[0038] This utility model discloses a breathable and waterproof surgical drape. The overall technical solution of this utility model provides a solution to the conflict between the needs for liquid protection and breathability during surgery through a combination of multi-layered functional structures and regionally differentiated designs. By setting regionalized waterproof and breathable layers 4 with different performance parameters, and using specific area ratios, shape designs, and covering structures, the surgical drape can provide differentiated functional characteristics in different areas. The specific details of this embodiment are as follows:

[0039] Figure 1This is a schematic diagram of a breathable and waterproof surgical drape structure according to this embodiment; Figure 2 This is a front view of a breathable and waterproof surgical drape structure according to this embodiment. As can be seen from the figure, the breathable and waterproof surgical drape adopts a multi-layer composite structure design, which includes, from top to bottom, a skin-friendly layer 1, an antibacterial layer 2, an absorbent layer 3, and a waterproof and breathable layer 4.

[0040] The function of the skin-friendly layer 1 is to directly contact the patient's skin and provide the patient with a soft and comfortable contact experience. The skin-friendly layer 1 is made of spunbond nonwoven fabric through a hot rolling process, which has good skin-friendliness and moisture permeability.

[0041] The antibacterial layer 2 is located below the skin-friendly layer 1. Its function is to inhibit bacterial growth and reduce the risk of infection. The antibacterial layer 2 is made of spunlace nonwoven fabric treated with chitosan solution. The antibacterial function is achieved through the natural antibacterial properties of chitosan.

[0042] The absorbent layer 3 is located below the antibacterial layer 2, and its function is to absorb various fluids generated during surgery, including blood, tissue fluid, and irrigation fluid. This absorbent layer 3 is made by molding a mixture of sponge material and high-molecular absorbent resin, and has high liquid absorption capacity and fluid retention properties.

[0043] The waterproof and breathable layer 4 is located below the absorbent layer 3. Its function is to prevent liquid penetration while allowing water vapor to pass through.

[0044] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of the AA layer. As shown in the diagram, the waterproof and breathable layer 4 includes a first pad 41 located in the first region and a second pad 42 located in the second region. The second region is situated around the periphery of the first region; the first pad 41 and the second pad 42 are compositely connected via a hot-pressing seamless welding process.

[0045] The first layer 41 is made of highly breathable polytetrafluoroethylene microporous membrane material with a large first pore size and high first air permeability, its function being to promote the rapid dissipation of water vapor. The second layer 42 is made of highly waterproof polyurethane film material with a smaller second pore size and higher hydrostatic pressure, its function being to provide effective liquid barrier protection. The air permeability of the first layer 41 is greater than that of the second layer 42; this differentiated design allows for better air permeability in the central area, while providing stronger waterproof protection in the surrounding area.

[0046] In this embodiment, the area ratio of the first region to the second region is designed as 2.5:1. This ratio has been experimentally verified to ensure sufficient breathable area while providing necessary surrounding protection. In other embodiments, the area ratio of the first region to the second region can be from 1:2 to 5:1, which similarly ensures sufficient breathable area while providing necessary surrounding protection.

[0047] In this embodiment, the first region adopts a racetrack-shaped design, including a rectangular main body and two semi-circular ends. The two semi-circular ends are tangentially connected to the two opposite sides of the rectangular main body, forming a smoothly transitioning convex structure. This shape provides a larger breathable area while ensuring a smooth transition at the edges, thus improving user comfort. In other embodiments, the first region is designed as an ellipse. This shape better conforms to the contact area with the human body, providing uniform breathability, and the smooth edges of the ellipse also help reduce stress concentration.

[0048] Furthermore, the air permeability of the first layer 41 is no less than 8000 g / m² / 24h, ensuring that water vapor can be discharged through the central area in a timely manner. The hydrostatic pressure of the second layer 42 is no less than 8000 Pa, ensuring that the surrounding areas effectively block liquid infiltration. These performance parameters provide quantitative assurance for the product's functionality.

[0049] Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure of the BB layer. As shown in the diagram, in this embodiment, the periphery of the skin-friendly layer 1 extends towards the waterproof and breathable layer 4, at least covering a portion of the second padding layer 42 in the second region. This design helps enhance the edge sealing of the product. In other embodiments, the periphery of the skin-friendly layer 1 completely covers the second padding layer 42 in the second region and at least covers a portion of the first padding layer 41 in the first region. This covering structure provides better integrity and protection. In the most perfect embodiment, the periphery of the skin-friendly layer 1 completely covers the waterproof and breathable layer 4, making the skin-friendly layer 1 hollow and closed. This structure completely isolates the entry of external pollutants and provides comprehensive protection for the internal functional layers.

[0050] Overall, this utility model adopts a structural design that combines a skin-friendly layer 1, an antibacterial layer 2, an absorbent layer 3, and a zoned waterproof and breathable layer 4. Through the synergistic effect of different functional layers and the differentiated performance configuration of different areas, it can balance the needs of breathability and waterproofness to a certain extent. It can provide corresponding functional characteristics for different areas during the surgical process, and has a certain positive effect on improving patient comfort and surgical safety.

[0051] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A breathable and waterproof surgical drape, characterized in that, include: Skin-friendly layer (1), used for contact with skin; An antibacterial layer (2) is disposed below the skin-friendly layer (1) to inhibit bacterial growth; An absorbent layer (3) is disposed below the antibacterial layer (2) and is used to absorb liquid; A waterproof and breathable layer (4) is disposed below the absorbent layer (3); the waterproof and breathable layer (4) includes a first pad (41) located in a first region and a second pad (42) located in a second region; the second region is located around the first region, and the first pad (41) and the second pad (42) are composited by a seamless welding process; the first pad (41) has a first pore size and a first air permeability; the second pad (42) has a second pore size and a second air permeability; the first air permeability is greater than the second air permeability.

2. The breathable and waterproof surgical drape according to claim 1, characterized in that, The area ratio of the first region to the second region is 1:2 to 5:

1.

3. The breathable and waterproof surgical drape according to claim 2, characterized in that, The area ratio of the first region to the second region is 2.5:

1.

4. The breathable and waterproof surgical drape according to claim 1, characterized in that, The first region is elliptical in shape.

5. The breathable and waterproof surgical drape according to claim 1, characterized in that, The shape of the first region includes a rectangular main body and two semi-circular ends, which are tangentially connected to the two opposite sides of the rectangular main body and form a smoothly transitioning convex structure.

6. The breathable and waterproof surgical drape according to claim 1, characterized in that: The first cushion layer (41) in the first region has an air permeability of not less than 8000 g / m² / 24h; The hydrostatic pressure of the second cushion layer (42) in the second region is not less than 8000 Pa.

7. The breathable and waterproof surgical drape according to claim 1, characterized in that, The periphery of the skin-friendly layer (1) extends toward the waterproof and breathable layer (4) and at least covers a portion of the second padding layer (42) of the second region.

8. The breathable and waterproof surgical drape according to claim 7, characterized in that, The skin-friendly layer (1) extends from its periphery toward the waterproof and breathable layer (4) and completely covers the second padding layer (42) of the second region, and at least covers a portion of the first padding layer (41) of the first region.

9. The breathable and waterproof surgical drape according to claim 8, characterized in that, The periphery of the skin-friendly layer (1) extends toward the waterproof and breathable layer (4) and completely covers the waterproof and breathable layer (4); the skin-friendly layer (1) is hollow and closed.

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