A wound care device for use after caesarean section

Abstract

This application discloses a wound care device for cesarean section, belonging to the field of postoperative care. The device includes a main body, a herbal dressing layer fixedly disposed in the lower middle part of the main body, and a fixing component. The main body includes an adhesive layer and a pressure-reducing layer fixedly connected to the upper end of the adhesive layer. The pressure-reducing layer is a wavy curved pad made of medical-grade silicone, with a recessed area corresponding to the wound in the lower middle part and pressure-reducing grooves at the edges. Through the wavy curved pad design of the medical-grade silicone pressure-reducing layer, dynamic pressure adjustment and adaptive fit to the cesarean section wound can be achieved. The central recessed area corresponds to the wound position, reducing direct pressure from the main body on the wound and preventing blood flow obstruction or secondary dehiscence due to excessive pressure. The edge pressure-reducing groove design diffuses the lateral stress generated during abdominal movement along the edge of the pad, reducing local stress concentration in the wound area and further reducing the risk of dehiscence.

Description

Technical Field

[0001] This application relates to the field of postoperative care technology, specifically a wound care device for postoperative cesarean section. Background Technology

[0002] In the field of postoperative care after cesarean section, wound pressure control and fixation stability are key factors affecting healing.

[0003] In the prior art, Chinese utility model patent CN109966054A discloses a postpartum care belt for cesarean section. It features an antibacterial layer in the innermost layer that contacts the skin, made by soaking the belt in a traditional Chinese medicine extract. Above the antibacterial layer is a traditional Chinese medicine layer with astringent, hemostatic, blood-stasis-removing, pain-relieving, heat-clearing, and detoxifying functions. Working together with the antibacterial layer, this not only prevents infection of the cesarean section wound but also aids in wound healing and rapid recovery. During use, the pad is secured to the mother's waist via the left and right straps and a buckle-hook structure, ensuring the pad aligns with the wound. Because the human abdomen has a natural curvature, the nursing pad needs to fit tightly to the wound during the fixation process. Since the nursing pad has a flat structure, it is not optimized for the longitudinal position and healing characteristics of the cesarean section wound. Its "complete fit" design concept ignores the wound's need for pressure buffering, which can easily lead to continuous pressure on the wound. Excessive pressure can easily cause the wound to reopen due to secondary rupture, especially when the mother moves or changes position, the problem of pressure stress concentration is more prominent.

[0004] Therefore, this application provides a wound care device for post-cesarean section to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a wound care device for post-cesarean section, aiming to solve the problems mentioned in the background art. The existing nursing pads have a planar structure and are not optimized for the longitudinal position and healing characteristics of the cesarean section wound. Their "complete fit" design concept ignores the wound's need for pressure buffering, which can easily lead to continuous compression of the wound and the risk of secondary wound dehiscence due to excessive pressure.

[0006] To achieve the above objectives, this application provides the following technical solution: a wound care device for postpartum cesarean section, comprising a care body, a traditional Chinese medicine dressing layer fixedly disposed at the lower middle part of the care body for contact with the wound, and a fastener for fixing the care body to the postpartum woman's skin;

[0007] To reduce pressure on the wound from the nursing device: the nursing device includes an adhesive layer and a pressure-reducing layer fixedly connected to the upper end of the adhesive layer. The adhesive layer consists of a contact layer, an absorbent layer, and a protective layer. The pressure-reducing layer is a wavy curved pad made of medical-grade silicone, with a recessed area corresponding to the wound in the lower center and pressure-reducing grooves at the edges. In use, the wavy curved surface of the pressure-reducing layer conforms to the natural curvature of the abdomen, with the central recessed area reserving space for the wound, allowing the herbal dressing layer to only lightly touch the wound rather than compress it. When the mother breathes or moves, the elastic deformation of the medical-grade silicone absorbs the external force generated by the abdominal fluctuations, preventing pressure from being directly transmitted to the wound. The edge pressure-reducing grooves, through structural design, guide the lateral stretching or contraction stress to the edge of the protective device, rather than concentrating it in the wound area, thereby forming dynamic pressure buffer protection.

[0008] Preferably, to further reduce the pressure of the decompression layer on the wound: the outer edge of the recessed area gradually thins towards the center from the boundary between the outer edge and the non-recessed area, and its cross-section is parabolic. The gradual thinning of the outer edge of the recessed area towards the center (parabolic cross-section) forms an elastic transition zone, which can effectively reduce the pressure pain of the edge of the brace on the skin around the wound. This avoids the excessive local pressure caused by the sudden change in thickness at the edge of traditional braces, reducing skin indentations and pain; the parabolic design allows the pressure to gradually decrease from the edge of the brace (non-recessed area) to the wound area (recessed area), which is ergonomic and improves wearing comfort.

[0009] Preferably, to reduce sweat buildup: the contact layer is made of a hydrophilic silicone membrane with a honeycomb pore array on its surface. Using a hydrophilic silicone membrane with a honeycomb pore array in the contact layer can significantly reduce sweat buildup around the wound, creating a dry and breathable local environment. The honeycomb pore array structure increases air convection channels on the surface of the contact layer, accelerating sweat evaporation; the hydrophilic silicone membrane absorbs moisture from the skin surface, and combined with the breathable properties of the pore array, it prevents bacterial growth caused by a damp environment, reducing the risk of wound infection; it also prevents skin itching or eczema caused by sweat buildup, making it especially suitable for postpartum women with excessive sweating.

[0010] Preferably, to ensure wound dryness: the absorbent layer is fixedly disposed between the contact layer and the protective layer. The absorbent layer is made of superabsorbent polymer cotton pads with multiple parallel drainage channels, each with a V-shaped cross-section. Through the combined design of the superabsorbent polymer cotton pads and the V-shaped drainage channels, the absorbent layer achieves efficient absorption and uniform drainage of wound exudate. The superabsorbent polymer cotton pads have strong absorbency, effectively locking in the exudate and preventing liquid from stagnating on the wound surface. The V-shaped drainage channels guide the exudate to diffuse outwards along the parallel channels, preventing localized fluid accumulation that could lead to dressing saturation or seepage, thus extending the lifespan of the nursing device. Through the dual effects of absorption and drainage, the continuous infiltration of the wound by exudate is reduced, providing an ideal environment for wound healing.

[0011] Preferably, the upper end of the protective layer is fixedly connected to the lower end of the pressure-reducing layer, and the protective layer is a composite of a TPU waterproof membrane and medical non-woven fabric. The protective layer, composed of a TPU waterproof membrane and medical non-woven fabric, combines waterproofing, breathability, and structural support. The TPU waterproof membrane effectively blocks water, bacteria, and other external contaminants from entering the protective garment, protecting the wound from infection; the porous structure of the medical non-woven fabric allows oxygen and water vapor to pass through, preventing delayed wound healing due to a confined environment.

[0012] Preferably, to facilitate the fixation of the nursing device to the skin: the fixing member includes an annular adhesive layer fixedly connected to the lower edge of the contact layer, the annular adhesive layer being made of medical PU film, and a release liner being provided at the lower end of the annular adhesive layer. The fixing member, through the combination of the annular adhesive layer made of medical PU film and the release liner, achieves convenient fixation and safe disassembly of the nursing device. The medical PU film has mild adhesiveness, can firmly adhere to the postpartum woman's abdominal skin, and prevents the protective device from shifting; the PU film material has good skin-friendliness, reduces allergic reactions, and will not leave adhesive residue or pull on the skin around the wound when peeled off; the release liner protects the adhesiveness of the adhesive layer when not in use, ensuring that the product can be used directly after opening without additional fixing steps.

[0013] This application utilizes a wave-shaped curved pad design made of medical-grade silicone to achieve dynamic pressure adjustment and adaptive fit for cesarean section wounds. The central concave area corresponds to the wound location, reducing direct pressure from the nursing device and preventing blood flow obstruction or secondary dehiscence due to excessive pressure. The elastic properties of medical-grade silicone allow it to adapt to changes in the mother's breathing, coughing, and body position, maintaining a close fit to the abdominal skin while avoiding rigid compression. The edge pressure-reducing groove design diffuses lateral stress generated during abdominal movement along the edge of the pad, reducing local stress concentration in the wound area and further minimizing the risk of dehiscence. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a wound care device for use after a cesarean section.

[0015] Figure 2 for Figure 1 An exploded view of the structure of the main body and fasteners of the central nursing unit, viewed from below.

[0016] Figure 3 This is a bottom view of the decompression layer;

[0017] Figure 4 This is an exploded view of the bonding layer.

[0018] In the picture:

[0019] 1. Nursing body; 11. Adhesive layer; 111. Contact layer; 112. Absorbent layer; 113. Protective layer; 12. Pressure relief layer; 121. Recessed area; 122. Pressure relief groove; 2. Traditional Chinese medicine dressing layer; 3. Fixing element; 31. Circular adhesive layer; 32. Release sheet. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] This embodiment provides a wound care device for post-cesarean section care, such as... Figure 1-4 As shown, the nursing device includes a nursing body 1, a Chinese herbal dressing layer 2 fixedly disposed at the lower middle part of the nursing body 1 for contact with the wound, and a fastener 3 for fixing the nursing body 1 to the postpartum woman's skin.

[0022] To reduce pressure on the wound from the nursing body 1: The nursing body 1 includes an adhesive layer 11 and a pressure-reducing layer 12 fixedly connected to the upper end of the adhesive layer 11. The adhesive layer 11 consists of a contact layer 111, an absorbent layer 112, and a protective layer 113. The pressure-reducing layer 12 is a wavy curved pad made of medical silicone, with a recessed area 121 corresponding to the wound in the lower center and pressure-reducing grooves 122 at the edges. Through the wavy curved pad design of the medical silicone pressure-reducing layer 12, dynamic pressure adjustment and adaptive fit to the cesarean section wound can be achieved. The central concave area 121 corresponds to the wound location, reducing direct pressure on the wound from the main care unit 1 and preventing blood flow obstruction or secondary rupture due to excessive pressure. The elastic properties of medical silicone allow it to adapt to changes in the mother's breathing, coughing, and body position, maintaining a close fit to the abdominal skin while avoiding rigid compression. The edge pressure relief groove 122 is designed to diffuse the lateral stress generated during abdominal movement along the edge of the protective garment, reducing local stress concentration in the wound area and further reducing the risk of rupture. During use, the wavy curved surface of the pressure relief layer 12 conforms to the natural curvature of the abdomen, with the central concave area 121 reserving space for the wound, allowing the herbal dressing layer 2 to only lightly touch the wound rather than compress it. When the mother breathes or moves, the elastic deformation of the medical silicone absorbs the external force generated by the abdominal undulations, preventing pressure from being directly transmitted to the wound. The edge pressure relief groove 122, through its structural design, directs the lateral stretching or contraction stress to the edge of the protective garment, rather than concentrating it in the wound area, thus forming dynamic pressure buffer protection.

[0023] To further reduce the pressure of the decompression layer 12 on the wound: the outer edge of the recessed area 121 gradually thins towards the center from the junction with the non-recessed area 121, and its cross-section is parabolic. The gradual thinning of the outer edge of the recessed area 121 towards the center (parabolic cross-section) forms an elastic transition zone, which can effectively reduce the pressure pain of the edge of the brace on the skin around the wound. This avoids the excessive local pressure caused by the sudden change in thickness at the edge of the traditional brace, reducing skin indentation and pain; the parabolic design allows the pressure to gradually decrease from the edge of the brace (non-recessed area 121) to the wound area (recessed area 121), which is ergonomic and improves wearing comfort. When the decompression layer 12 is fixed to the abdomen, the parabolic gradient structure of the outer edge adjusts the local stiffness through the change in thickness—the thicker part at the edge provides overall support for the brace, and the stiffness decreases as it gradually thins towards the center to the recessed area 121, forming a flexible contact interface. This structural design ensures even pressure distribution when the brace comes into contact with the skin, preventing pressure points from forming due to stress concentration at the edges. It can reduce friction and pressure on the abdominal skin, especially when the mother is lying on her side or getting up.

[0024] To reduce sweat buildup: Contact layer 111 uses a hydrophilic silicone membrane with a honeycomb pore array on its surface. The use of a hydrophilic silicone membrane and honeycomb pore array in contact layer 111 significantly reduces sweat buildup around the wound, creating a dry and breathable local environment. The honeycomb pore array structure increases air convection channels on the surface of contact layer 111, accelerating sweat evaporation. The hydrophilic silicone membrane absorbs moisture from the skin surface, and combined with the breathable properties of the pore array, it prevents bacterial growth caused by a damp environment, reducing the risk of wound infection. It also prevents skin itching or eczema caused by sweat buildup, making it especially suitable for postpartum women with excessive sweating. The polar groups on the surface of the hydrophilic silicone membrane can absorb sweat molecules from the skin surface, while the micron-level channels formed by the honeycomb pore array connect the internal and external environments of contact layer 111, allowing moisture from the skin surface to diffuse to the outside through the pore array. At the same time, the three-dimensional pores of the honeycomb structure increase the surface area, accelerating the rate of sweat evaporation, thereby maintaining the dryness of the skin around the wound. Even when the postpartum woman is active or the ambient temperature is high, the pore array structure can remove excess moisture through natural convection or micro-airflow on the skin surface, preventing local dampness.

[0025] To ensure wound dryness: the absorbent layer 112 is fixedly positioned between the contact layer 111 and the protective layer 113. The absorbent layer 112 is made of superabsorbent polymer cotton pads with multiple parallel drainage channels, each with a V-shaped cross-section. Through the combined design of the superabsorbent polymer cotton pads and the V-shaped drainage channels, the absorbent layer 112 achieves efficient absorption and uniform drainage of wound exudate. The superabsorbent polymer cotton pads have strong absorbency, effectively locking in the exudate and preventing liquid from stagnating on the wound surface. The V-shaped drainage channels guide the exudate to diffuse outwards along the parallel channels, preventing localized fluid accumulation that could saturate or permeate the dressing, thus extending the lifespan of the care device. Through the dual effects of absorption and drainage, the continuous infiltration of the wound by exudate is reduced, providing an ideal environment for wound healing. When exudate is produced in the wound, the liquid first permeates through the honeycomb pores of the contact layer 111 to the absorbent layer 112. The superabsorbent polymer pads quickly absorb liquid and expand, while the V-shaped guide channels utilize capillary action and gravity to guide the liquid along the channels towards the edge of the protective gear, ensuring even distribution of the liquid within the absorbent layer 112. Because the bottom of the V-shaped cross-section is narrower, the liquid experiences less resistance as it flows within the channels, allowing it to quickly diffuse over a larger area of ​​the absorbent pads and preventing leakage risks caused by excessive absorption in a single area.

[0026] The upper end of the protective layer 113 is fixedly connected to the lower end of the pressure-reducing layer 12. The protective layer 113 is a composite of a TPU waterproof membrane and medical non-woven fabric. The protective layer 113, composed of a TPU waterproof membrane and medical non-woven fabric, combines waterproofing, breathability, and structural support. The TPU waterproof membrane effectively blocks water, bacteria, and other external contaminants from entering the protective gear, protecting the wound from infection. The porous structure of the medical non-woven fabric allows oxygen and water vapor to pass through, preventing delayed wound healing due to a closed environment. The TPU waterproof membrane blocks liquid water penetration through its molecular-level dense structure, while the fiber gaps of the medical non-woven fabric (diameter larger than water vapor molecules but smaller than liquid water particles) allow gas exchange. When water from the external environment (such as bath water or sweat) comes into contact with the protective gear, the TPU membrane isolates it; simultaneously, water vapor produced by wound metabolism can be discharged through the pores of the non-woven fabric, creating a "one-way breathable" effect.

[0027] To facilitate the fixation of the nursing device to the skin: the fixing member 3 includes an annular adhesive layer 31 fixedly connected to the lower edge of the contact layer 111. The annular adhesive layer 31 is made of medical PU film, and a release tab 32 is provided at the lower end of the annular adhesive layer 31. The fixing member 3, through the combination of the annular adhesive layer 31 made of medical PU film and the release tab 32, realizes the convenient fixation and safe disassembly of the nursing device. The medical PU film has mild adhesiveness and can be firmly adhered to the postpartum woman's abdominal skin to prevent the protective device from shifting; the PU film material has good skin-friendliness, reduces allergic reactions, and will not leave adhesive residue or pull on the skin around the wound when peeled off; the release tab 32 protects the adhesiveness of the adhesive layer when not in use, ensuring that the product can be used directly after opening without additional fixing steps. When in use, peel off the release tab 32 to expose the adhesive surface of the annular adhesive layer 31, and stick it along the healthy skin around the wound, so that the herbal dressing layer 2 in the center of the protective device is aligned with the wound. The adhesiveness of medical PU film comes from the medical pressure-sensitive adhesive on its surface. Its adhesive strength is moderate, which can resist the displacement force generated by abdominal movement, and can also reduce the pulling on the skin by slowly peeling it off when changing dressings. The ring design ensures that the adhesive force is evenly distributed along the edge of the dressing, avoiding local skin damage caused by single-point force, while leaving the wound area unattached to reduce the risk of adhesion when changing dressings.

[0028] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.

[0029] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A wound care device for postpartum cesarean section, comprising a nursing body (1), a Chinese herbal dressing layer (2) fixedly disposed at the lower middle part of the nursing body (1) for contact with the wound, and a fastener (3) for fixing the nursing body (1) to the postpartum woman's skin. characterized in that The nursing body (1) includes an adhesive layer (11) and a pressure-reducing layer (12) fixedly connected to the upper end of the adhesive layer (11). The adhesive layer (11) is composed of a contact layer (111), an absorbent layer (112) and a protective layer (113). The pressure-reducing layer (12) is a wavy curved pad made of medical silicone. A depression area (121) corresponding to the wound is provided in the middle of its lower end, and a pressure-reducing groove (122) is provided at the edge.

2. The wound care device for post-cesarean section care according to claim 1, characterized in that: The outer edge of the recessed area (121) gradually thins towards its center, and its cross-section is parabolic.

3. The wound care device for use after a caesarean section according to claim 1, characterized in that: The contact layer (111) is made of hydrophilic silicone film with a honeycomb array on its surface.

4. The wound care device for use after a caesarean section according to claim 1, characterized in that: The absorbent layer (112) is fixedly disposed between the contact layer (111) and the protective layer (113). The absorbent layer (112) is made of superabsorbent polymer cotton sheet and has multiple parallel guide grooves with a V-shaped cross section.

5. The wound care device for use after a caesarean section according to claim 1, characterized in that: The upper end of the protective layer (113) is fixedly connected to the lower end of the pressure-reducing layer (12), and the protective layer (113) is made of TPU waterproof membrane and medical non-woven fabric composite.

6. The wound care device for use after a caesarean section according to claim 1, characterized in that: The fastener (3) includes an annular adhesive layer (31) fixedly connected to the lower side of the contact layer (111). The annular adhesive layer (31) is made of medical PU film, and a release sheet (32) is provided at the lower end of the annular adhesive layer (31).

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