Pressure sore prevention water cushion with drawstring type stable structure

Abstract

The utility model discloses a pressure sore prevention water cushion with a drawstring type stable structure. The pressure sore prevention water cushion comprises a cushion tire body and the drawstring type stable structure, a ventilation avoiding hole is formed in the middle of the cushion tire body and filled with water, a water injection hole is formed in the outer wall of the cushion tire body, and a sealing plug is installed at the water injection hole. The drawstring type stable structure is a quadrilateral drawstring structure formed by connecting four drawstring sheets end to end; an inner cavity of the cushion tire body is divided into an inner ring and an outer ring by the drawstring type stable structure; the drawstring piece is vertically arranged in the cushion tire body, and the two side edges of the drawstring piece in the height direction are fixedly connected with the inner wall of the cushion tire body; a plurality of small penetrating holes are formed in the transverse middle of the drawstring piece, and the inner ring and the outer ring in the cushion tire body are communicated through the small penetrating holes. Pressure is dispersed through the drawstring structure, temperature is adjusted through the intelligent temperature control assembly, comfort and safety are improved through the composite function material, and the multiple beneficial effects that pressure sores are efficiently prevented, the mattress is comfortable to use in four seasons, and the mattress is suitable for multiple scenes and is durable and reliable are achieved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a pressure ulcer prevention water cushion with a pull strap stabilizing structure. Background Technology

[0002] Pressure ulcers, also known as pressure sores or bedsores, are common complications in patients who are bedridden or sit for extended periods. They are primarily caused by impaired blood circulation due to continuous pressure on local tissues. Pressure ulcer prevention cushions are medical care cushions designed to prevent and alleviate pressure ulcers. Currently, pressure ulcer prevention cushions on the market are mainly inflatable and foam-based, both of which have significant defects in material properties and structural design. Inflatable cushions rely on air bladders to distribute pressure, but their overall durability and comfort are poor: long-term use can lead to air leakage and air bladder aging, and the closed air chambers result in insufficient breathability, causing a stuffy feeling during prolonged sitting; at the same time, the elastic support stability of the air bladders is greatly affected by changes in air pressure, failing to meet the continuous pressure relief needs of patients who are bedridden or sit for extended periods. While foam cushions are slightly more durable than inflatable ones, their material is prone to collapse and deformation due to repeated pressure, resulting in uneven pressure distribution. Especially in summer, the dense structure of foam hinders air circulation, exacerbating the stuffiness. Neither type of product can achieve both comfort and long-term support.

[0003] To address the stuffiness issues of traditional inflatable or sponge seat cushions, water-filled seat cushions with ice crystal additives have emerged on the market. These products typically use PVC Oxford cloth and strip-shaped straps. However, existing designs have several technical shortcomings: First, the base material is weak; ordinary PVC Oxford cloth lacks tear resistance and is prone to damage and leakage due to friction or pulling. Second, the simple strip-shaped straps only provide basic fixation and cannot effectively distribute the central pressure of the body when sitting, causing excessive stretching of the cushion's edges and further increasing the risk of breakage, thus limiting their widespread application in medical and nursing settings.

[0004] To address the shortcomings of the existing technology, this invention designs a pressure ulcer prevention water seat cushion with a pull strap stabilizing structure, which solves the problems of poor stability, easy damage, and insufficient comfort of existing products, providing an innovative solution that combines practicality and reliability for the field of pressure ulcer care. Utility Model Content

[0005] To address the aforementioned technical issues, this utility model provides an anti-pressure sore water seat cushion with a pull-belt stabilizing structure. By dispersing pressure through the pull-belt structure, regulating temperature through intelligent temperature control components, and enhancing comfort and safety through composite functional materials, it achieves multiple beneficial effects, including efficient prevention of pressure sores, comfortable use in all seasons, suitability for various scenarios, and durability and reliability.

[0006] To achieve the above objectives, this utility model provides an anti-pressure sore water seat cushion with a pull strap stabilizing structure, including a seat cushion body and a pull strap stabilizing structure disposed within the seat cushion body.

[0007] The seat cushion body has a ventilation hole in the middle, which is filled with water. The outer wall has a water injection hole, and a sealing plug is installed at the water injection hole.

[0008] The pull-belt stabilizing structure is a quadrilateral pull-belt structure formed by four pull-belt pieces connected end to end; the pull-belt stabilizing structure divides the inner cavity of the seat cushion into an inner ring and an outer ring; the pull-belt pieces are vertically arranged inside the seat cushion, and the two sides of the pull-belt pieces in the height direction are fixedly connected to the inner wall of the seat cushion; several through holes are opened in the middle of the pull-belt pieces in the horizontal direction, and the inner ring and outer ring inside the seat cushion are connected through the through holes.

[0009] Furthermore, it also includes an intelligent temperature control component, which includes a silicone heating wire and a temperature controller. One end of the silicone heating wire is inserted into the seat cushion body and fixed around the outer wall of the four pull tabs, while the other end is connected to the temperature controller. The heating temperature is controlled by the temperature controller, which is electrically connected to a water temperature sensor installed in the seat cushion body.

[0010] Furthermore, the seat cushion body has a perforation for the silicone heating wire to pass through, and a sealing gasket is installed at the perforation.

[0011] Furthermore, the seat cushion body and the strap sheet are integrally formed using high-polymer PVC material through high-frequency heat sealing.

[0012] Furthermore, the upper surface of the seat cushion body is provided with a composite skin-friendly PU memory foam layer, and the surface is coated with a nano silver antibacterial coating.

[0013] Furthermore, a honeycomb-shaped silicone anti-slip layer is added to the bottom surface of the seat cushion body.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model uses a quadrilateral pull strip to vertically divide the inner cavity of the seat cushion into the inner ring of the buttock pressure area and the outer ring of the edge support area. A small hole is passed through the middle of the pull strip to form a dynamic water flow channel, so that the concentrated pressure of the buttocks is evenly distributed to the surrounding area through the tension of the pull strip. At the same time, it realizes the real-time exchange of water between the inner and outer rings, which not only avoids the stress concentration of the edge wrapping, but also reduces the stuffiness through the ventilation holes and water flow.

[0016] 2. This utility model uses silicone heating wires arranged around the outer wall of the pull strap, and uses the structural rigidity of the pull strap to fix the heating component. With the help of a thermostat and a water temperature sensor, it can achieve precise temperature control and solve the sealing problem of traditional external heating devices. It can maintain the surface temperature of the cushion in a comfortable range in low-temperature environments, avoid low-temperature stimulation when used in winter, and achieve physical cooling in summer through natural heat absorption by water and ventilation holes, significantly expanding the applicable scenarios.

[0017] 3. The seat cushion body of this utility model is made of high-polymer PVC material and integrally molded by high-frequency heat sealing. Sealing gaskets are provided at the water injection hole and the silicone heating wire perforation. Combined with the heat sealing and fixing process of the pull strip and the inner wall of the cushion, a multi-layer sealing and protection system is constructed to eliminate the risk of leakage from the three aspects of materials, structure and process. The durability is significantly improved compared with traditional water-filled seat cushions.

[0018] 4. The surface layer of this utility model is a skin-friendly PU memory foam composite nano-silver antibacterial coating with an antibacterial rate of ≥99%, the middle layer is a high-molecular PVC heat-sealed body with high tear resistance, and the bottom layer is a honeycomb silicone anti-slip layer, forming a three-dimensional functional structure with contact comfort, structural stability and carrier fixation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0021] Figure 3 This is a structural perspective view of the present invention.

[0022] Figure 4 This is a schematic diagram of the alternative structure to the pull-type structure of this utility model.

[0023] In the diagram: 1. Seat cushion body; 11. Ventilation and clearance hole; 12. Inner ring; 13. Outer ring; 14. Sealing plug; 15. Sealing gasket; 2. Pull strap; 21. Through hole; 3. Thermostat; 31. Silicone heating wire; 32. Water temperature sensor. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] This utility model discloses a pressure ulcer prevention water seat cushion with a pull strap stabilizing structure.

[0026] Reference Figures 1 to 3A pressure ulcer-preventing water-filled seat cushion with a pull-strap stabilizing structure includes a seat cushion body 1, a pull-strap stabilizing structure, and an intelligent temperature control component. The seat cushion body 1 has a ventilation and avoidance hole 11 in the middle, which serves to cushion and allow airflow while preventing pressure sores from getting in. It is filled with water internally, and has water injection holes on the outer wall, with sealing plugs 14 installed at the water injection holes. Water is injected and discharged through the water injection holes, making it easy to store, carry, and use.

[0027] Reference Figures 1 to 3 The pull-belt stabilizing structure is located inside the seat cushion body 1. It is a quadrilateral pull-belt structure formed by four pull-belt pieces 2 connected end to end. The pull-belt stabilizing structure divides the inner cavity of the seat cushion body 1 into an inner ring 12 and an outer ring 13. The pull-belt pieces 2 are vertically arranged inside the seat cushion body 1, and the two sides of the pull-belt pieces 2 in the height direction are fixedly connected to the inner wall of the seat cushion body 1. Several through holes 21 are opened in the middle of the pull-belt pieces 2 in the horizontal direction, and the inner ring 12 and the outer ring 13 inside the seat cushion body 1 are connected through the through holes 21.

[0028] Reference Figure 4 In another embodiment, the pull strip 2 of the pull-belt stabilizing structure is circularly constructed.

[0029] Reference Figures 1 to 3 The seat cushion is divided into an inner ring 12 and an outer ring 13 by a quadrilateral pull strip 2. The inner ring 12 is the pressure area for the buttocks, and the outer ring 13 is the edge support area. A small hole 21 runs through the middle of the pull strip 2 to create a dynamic water flow channel, so that the concentrated pressure on the buttocks is evenly distributed to the surrounding area through the tension of the pull strip. At the same time, the water in the inner and outer rings 13 is exchanged in real time, which not only avoids the stress concentration at the edge, but also reduces the stuffiness through the ventilation holes 11 and water flow.

[0030] Reference Figure 3 The intelligent temperature control component includes a silicone heating wire 31 and a thermostat 3. One end of the silicone heating wire 31 is inserted into the seat cushion body 1 and fixed around the outer wall of the four pull strips 2, and the other end is connected to the thermostat 3. The heating temperature is controlled by the thermostat 3. The thermostat 3 is electrically connected to a water temperature sensor 32, which is installed inside the seat cushion body 1.

[0031] The silicone heating wire 31 is arranged around the outer wall of the pull strap, and the heating element is fixed by the rigid structure of the pull strap piece 2. Together with the thermostat 3 and water temperature sensor 32, it achieves precise temperature control of ±2℃, solving the sealing problem of traditional external heating devices. This design can maintain the surface temperature of the seat cushion within a comfortable range of 15-30℃ even in low-temperature environments of -20℃, avoiding low-temperature stimulation during winter use, and achieving physical cooling in summer through natural heat absorption by water combined with ventilation holes, significantly expanding its applicable scenarios.

[0032] The seat cushion body 1 has a perforation for the silicone heating wire 31 to pass through, and a sealing gasket 15 is installed at the perforation to prevent water leakage. The seat cushion body 1 and the pull strap 2 are made of high-polymer PVC material and are integrally molded by high-frequency heat sealing; this makes the overall sealing, structural strength and durability of the seat cushion better.

[0033] In some embodiments, the upper surface of the seat cushion body 1 is provided with a composite skin-friendly PU memory foam layer with a thickness of 5mm, and the surface is coated with a nano-silver antibacterial coating; this solves the risk of allergies and infections when traditional water-filled seat cushions come into direct contact with the skin. The bottom surface of the seat cushion body 1 is provided with a honeycomb-shaped silicone anti-slip layer to increase the friction of the bottom of the seat cushion and ensure that it is not easy to slip on curved carriers such as wheelchairs and hospital beds.

[0034] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pressure-relieving water-filled seat cushion with a pull-strap stabilizing structure, characterized in that: Includes a seat cushion body (1) and a strap-type stabilizing structure disposed within the seat cushion body (1); The seat cushion body (1) has a ventilation hole (11) in the middle, which is filled with water. The outer wall has a water injection hole, and a sealing plug (14) is installed at the water injection hole. The pull-belt stabilizing structure is a quadrilateral pull-belt structure formed by connecting four pull-belt pieces (2) end to end; the pull-belt stabilizing structure divides the inner cavity of the seat cushion body (1) into an inner ring (12) and an outer ring (13); the pull-belt pieces (2) are vertically arranged inside the seat cushion body (1), and the two sides of the pull-belt pieces (2) in the height direction are fixedly connected to the inner wall of the seat cushion body (1); the pull-belt pieces (2) have several through holes (21) in the middle of the horizontal direction, and the inner ring (12) and the outer ring (13) inside the seat cushion body (1) are connected through the through holes (21).

2. The anti-pressure sore water seat cushion with a pull-belt stabilizing structure according to claim 1, characterized in that: It also includes an intelligent temperature control component, which includes a silicone heating wire (31) and a temperature controller (3). One end of the silicone heating wire (31) is inserted into the seat cushion body (1) and fixed around the outer side wall of the four pull strips (2), and the other end is connected to the temperature controller (3). The heating temperature is controlled by the temperature controller (3). The temperature controller (3) is electrically connected to a water temperature sensor (32), which is installed inside the seat cushion body (1).

3. The anti-pressure sore water cushion with a pull-belt stabilizing structure according to claim 2, characterized in that: The seat cushion body (1) has a perforation for the silicone heating wire (31) to pass through, and a sealing gasket (15) is installed at the perforation.

4. A pressure-relieving water cushion with a pull-strap stabilizing structure according to any one of claims 1-3, characterized in that: The seat cushion body (1) and the pull strip (2) are integrally formed by high-frequency heat sealing using high-polymer PVC material.

5. A pressure-relieving water cushion with a strap-type stabilizing structure according to claim 4, characterized in that: The upper surface of the seat cushion body (1) is provided with a composite skin-friendly PU memory foam layer and coated with a nano silver antibacterial coating.

6. A pressure-relieving water cushion with a pull-strap stabilizing structure according to claim 5, characterized in that: The bottom surface of the seat cushion body (1) is provided with a honeycomb silicone anti-slip layer.

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