A reduced pressure latex seat cushion for improving respiratory distress

Abstract

This utility model discloses a pressure-relieving latex seat cushion for improving respiratory distress, belonging to the category of medical products. It features an ABS resin rigid seat cushion shaping plate, with a one-piece seat cushion and backrest fixed to the front. The interior is filled with memory foam, and the exterior is covered with breathable fabric. The seat cushion has a hip support area that is wider on both sides and narrower in the middle, hip support wings, an arc-shaped protrusion, and a leg support area. A slender tailbone decompression area is located near the backrest. The backrest has an elliptical spine support area and lumbar support wings. The hip support area, tailbone decompression area, and spine support area are filled with latex, while the hip support wings and lumbar support wings are filled with palm fiber. The shaping plate has reinforcing ribs and ventilation holes. This seat cushion can distribute pressure, is breathable, and prevent pressure sores and pain caused by forced sitting.

Description

Technical Field

[0001] This utility model relates to medical products, specifically to a pressure-relieving latex seat cushion for improving respiratory distress. Background Technology

[0002] Patients with respiratory distress often require a forced sitting or lying position (upper body slightly leaning forward, back supported by a structure) to reduce chest compression and improve respiratory efficiency due to impaired lung ventilation. However, this position needs to be maintained for extended periods, and patients are almost unable to change positions independently. Prolonged sitting concentrates body weight on the buttocks, sacrum, and back, easily leading to a series of problems: the skin in the sacrum is prone to redness, swelling, and ulceration due to continuous pressure and impaired blood circulation, which can develop into pressure sores in severe cases. Furthermore, the weakened immune system of these patients makes healing extremely difficult. The prolonged pressure on the coccyx and surrounding soft tissues also causes persistent pain, further exacerbating the patient's discomfort.

[0003] Currently available clinical products for assisting patients in sitting have significant limitations: while commonly used air mattresses can distribute pressure to some extent, their soft, inflated texture lacks sufficient support, causing patients to expend extra energy due to body swaying. Furthermore, air mattresses have poor breathability, leading to localized stuffiness, sweating, and an increased risk of skin infection with prolonged use. Pressure-relief patches, although small in size, are thin and offer limited pressure relief. They also make it difficult to directly observe the skin condition at the pressure point when applied, and repeated tearing during replacement can damage the surrounding delicate skin, failing to meet the long-term needs of patients with respiratory distress. Therefore, there is an urgent need for a specialized sitting cushion that combines pressure relief, support, breathability, and suitability for forced sitting / lying positions. Utility Model Content

[0004] This utility model provides a pressure-reducing latex seat cushion. Through the combination of a rigid molded board and memory foam, it effectively disperses pressure, while the breathable hole design promotes air circulation. The mesh fabric enhances comfort, and it is specifically designed for patients with respiratory distress, significantly improving their sitting and lying experience. The specific solution is as follows:

[0005] A pressure-relieving latex seat cushion for improving respiratory distress includes a firm seat shaping plate. An integral seat cushion and backrest are fixed to the seat body and backrest, respectively, on the front side of the firm seat shaping plate. The seat cushion and backrest are internally filled with sponge and externally covered with breathable fabric.

[0006] The seat cushion has a raised area on the middle surface to support the buttocks. The buttock support area is wide on both sides and narrows in the middle.

[0007] The seat cushion has hip support wings on both the left and right sides to support the human buttocks.

[0008] An arc-shaped protrusion is provided in the middle of the front side of the seat cushion, and a leg support area for supporting the legs is provided between the arc-shaped protrusion and the two leg support wings on both sides.

[0009] The upper surface of the seat cushion, near the backrest, has a raised, elongated coccyx decompression zone designed to relieve pressure on the coccyx.

[0010] The backrest has an oval-shaped spinal support area near the front of the seat cushion to support the human spine.

[0011] The backrest has lumbar support wings that extend forward and taper inward at the ends on both sides.

[0012] The hip support area, coccyx decompression area, and spine support area are filled with latex, while the hip support wings and lumbar support wings are filled with rigid support material made of palm.

[0013] Furthermore, the pressure-relieving latex seat cushion is 46cm long, 45cm wide, and 34cm high.

[0014] Furthermore, the material of the hard seat cushion molding plate is ABS resin.

[0015] Furthermore, the sponge is memory foam.

[0016] Furthermore, the seat body and backrest of the hard seat cushion shaping plate are provided with reinforcing ribs, and the hard seat cushion shaping plate is provided with several ventilation holes.

[0017] Furthermore, the breathable fabric is a mesh fabric, a breathable cotton fabric, or a synthetic fiber fabric with breathable function.

[0018] The advantages of this new pressure-reducing latex seat cushion for improving respiratory distress are summarized as follows:

[0019] 1. Precise pressure relief and support: The hip support area conforms to the physiological structure of the hips to distribute pressure, and the coccyx decompression area avoids the coccyx to reduce compression; the spinal support area matches the curvature of the spine, and the lumbar side wings provide hugging support, effectively preventing pressure injuries and pain.

[0020] 2. High material adaptability: The latex filling area is elastic and breathable, while the palm side wings provide stable support; the memory foam conforms to the body shape, and the breathable fabric and the ventilation holes of the shaping plate enhance air circulation and avoid stuffiness.

[0021] 3. Sturdy and durable structure: The molded board has both hardness and toughness, and the reinforcing ribs enhance the strength of the joints. The whole structure is not easy to deform or crack, and it is easy to clean and disinfect.

[0022] 4. Adapted to clinical needs: The size is adapted to the chair and human body, and the integrated structure and curved protrusions maintain a stable sitting posture, meeting the needs of patients with respiratory distress who are forced to sit or lie down for a long time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of a hard seat cushion shaping plate and its front soft seat cushion body;

[0025] Figure 2 This is a schematic diagram of a soft seat cushion. Detailed Implementation

[0026] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0027] To fully understand this utility model, detailed steps and structures will be presented in the following description to illustrate the technical solution of this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0028] Reference Figure 1-2 As shown, the pressure-relieving latex seat cushion for improving respiratory distress provided by this utility model has a core support structure of a hard seat cushion shaping plate 1. This shaping plate provides a stable base shape for the entire seat cushion, preventing deformation caused by prolonged leaning or body weight pressure. On the front of the hard seat cushion shaping plate 1, the seat body (the area for the buttocks to sit on) and the backrest (the area for the back to lean against) are respectively fixed with an integrated seat cushion 2 and backrest 3. The integrated structure of the seat cushion 2 and backrest 3 reduces the friction caused by the gaps between the parts, improving user comfort. The interior of the seat cushion 2 and backrest 3 is filled with memory foam, which has slow rebound characteristics and can automatically adjust its shape according to the body contour and pressure, evenly distributing pressure and avoiding excessive local pressure; while their outer surface is covered with breathable fabric, which can accelerate air circulation and reduce stuffiness. In an optional embodiment, the breathable fabric may specifically be a mesh fabric (the mesh structure allows for direct air convection and is highly breathable), a cotton breathable fabric (a natural material that is skin-friendly and absorbent, suitable for sensitive skin), or a synthetic fiber fabric with breathable function (wear-resistant, easy to clean, and with a longer service life).

[0029] On the central surface of the seat cushion 2, a raised area 21 is specifically designed to support the buttocks. This area is designed to be "wide on both sides and narrow in the middle," a shape that closely matches the physiological structure of the buttocks: the muscles on both sides of the buttocks are full and require a wide support surface to distribute pressure; while the middle of the buttocks (corresponding to the ischial tuberosities) is narrowed to provide some space, avoiding excessive pressure on the ischial tuberosities and reducing the risk of local pain. On the left and right sides of the seat cushion 2, there are buttock support wings 22, which act like "armrests" to provide auxiliary support to the buttocks from both sides, preventing the user's body from tilting to the sides and maintaining a stable sitting posture. On the front center of the seat cushion 2, there is an arc-shaped protrusion 23, which gently supports the lower part of the perineum, preventing the buttocks from sliding forward excessively; at the same time, the arc-shaped protrusion 23 and the leg support wings 22 on both sides form a leg support area 24, which conforms to the contour of the inner thigh, supports the root of the thigh, and reduces muscle tension caused by the legs being unsupported. In addition, on the upper surface of the seat cushion 2 near the backrest 3, there is a raised, elongated coccyx decompression area 25, which is located exactly to the human coccyx. The coccyx is a part that is easily pressured when sitting for a long time. The elongated design can precisely avoid the area directly under the coccyx and disperse the pressure on the coccyx through the surrounding raised support, reducing the risk of skin breakdown and pain in the coccyx area.

[0030] The backrest 3, located near the front of the seat cushion 2 (the core area directly in contact with the back), features an oval-shaped spinal support area 31. This oval shape matches the natural curvature of the human spine, providing continuous support from the lower cervical spine to the upper lumbar spine, preventing excessive kyphosis or lateral curvature due to lack of support and maintaining the spine's physiological curvature. The left and right sides of the backrest 3 feature lumbar support wings 32. These wings extend forward (towards the lower back) and taper inward at their ends (the outermost wing curves inward). This design "hugs" the sides of the lower back, filling the gap between the lower back and the backrest, supporting the lumbar muscles, and relieving fatigue caused by prolonged sitting. It is particularly suitable for patients with respiratory distress syndrome who are forced into a seated position for extended periods.

[0031] The filling materials for different support areas in this invention have been specifically selected:

[0032] 1) The hip support area 21, coccyx decompression area 25, and spinal support area 31 are filled with latex. Latex has high elasticity and good breathability, which can quickly respond to changes in body pressure and evenly distribute the support force. For example, the latex in the hip support area can deform with the pressure of the hips, making the support more conforming; the latex in the coccyx decompression area can reduce the vibration of the coccyx through elastic cushioning; and the latex in the spinal support area can conform to the curvature of the spine and avoid rigid compression.

[0033] 2) The hip support wings 22 and the lumbar support wings 32 are filled with rigid support made of palm material. The palm material has high hardness and stable shape, which can provide continuous rigid support. The palm support of the hip support wings can stably maintain the support strength on both sides of the hips and prevent the body from tilting to the side; the palm support of the lumbar support wings can maintain the "hugging" strength of the waist for a long time and avoid losing the support effect due to the material being too soft.

[0034] The integrated fabrication of memory foam for the hip support area 21, coccyx decompression area 25, spine support area 31, hip support side wings 22, and lumbar support side wings 32, which are made of different materials, can be achieved through a process of "layered prefabrication + mold fitting + overall wrapping," as detailed below:

[0035] 1. Prefabricate the materials for each functional area: First, make latex blocks (for hip support area 21, coccyx decompression area 25, and spine support area 31) and palm hard support blocks (for hip support side wings 22 and waist support side wings 32), and shape them according to the corresponding areas.

[0036] 2. Memory foam base molding: Memory foam is cast into a mold to serve as the base for the seat cushion and backrest. The mold has pre-drilled grooves that match the functional areas (the positions correspond to the support areas).

[0037] 3. Fitting and fixing: When the memory foam is semi-cured, the pre-made latex blocks and palm blocks are precisely embedded into the corresponding grooves. The foam is initially fixed by its own adhesiveness and forms an integral structure after complete curing.

[0038] 4. Surface integration: Breathable fabric is covered over the overall structure after it is inlaid, and the edges are closed by sewing or gluing, ultimately forming a seat cushion and backrest that are seamlessly integrated with memory foam.

[0039] In one optional embodiment, the pressure-reducing latex seat cushion is specifically designed to be 46cm long, 45cm wide, and 34cm high. The length is 1-2cm longer than typical commercially available lumbar support cushions, better covering the support needs from the hips to the back. For patients with respiratory distress, the longer length prevents the lower back from being unsupported, reducing the likelihood of forward leaning. The 45cm width accommodates the hips and legs of users of different body types, preventing the sides from extending beyond the cushion's edge and causing insufficient support. The 34cm height is suitable for commonly used clinical chair heights, allowing patients to bend their knees naturally and place their feet stably on the ground, further maintaining balance. This overall size design ensures comprehensive support while enhancing protection during use, reducing the risk of improper posture due to size mismatch.

[0040] In an optional embodiment, the material of the rigid seat cushion shaping plate 1 is ABS resin. ABS resin is a thermoplastic with excellent comprehensive performance, possessing sufficient hardness and toughness. The hardness ensures that the shaping plate does not deform when bearing the weight of the human body, maintaining the overall stability of the seat cushion's shape; the toughness prevents cracking after long-term use, extending the product's lifespan. Simultaneously, the smooth surface of ABS resin makes it easy to clean and disinfect, meeting the hygiene requirements of medical supplies and reducing the risk of bacterial growth, making it particularly suitable for patients with weakened immune systems, such as those experiencing respiratory distress.

[0041] In an optional embodiment, the seat body and backrest of the hard seat cushion shaping plate 1 are provided with reinforcing ribs. The connection point is a weak point in the shaping plate under stress. The reinforcing ribs (usually strip-shaped protrusions) can increase the thickness and structural strength of this part, enhancing the bending resistance like "steel bars" and preventing the connection point from breaking due to excessive back pressure. In addition, the hard seat cushion shaping plate 1 is provided with several ventilation holes. These ventilation holes and the breathable fabric on the surface of the seat cushion form an air circulation channel: outside air can enter the interior of the seat cushion through the ventilation holes and then exit through the fabric gaps, accelerating the air circulation inside the memory foam and latex, further improving the overall breathability and reducing the problem of moisture inside the seat cushion caused by long-term use.

[0042] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A pressure-relieving latex seat cushion for improving respiratory distress, the pressure-relieving latex seat cushion having a hard seat cushion shaping plate, wherein an integral seat cushion and backrest are fixed to the seat body and backrest respectively on the front of the hard seat cushion shaping plate, the seat cushion and backrest being filled with sponge and covered with breathable fabric on the outer surface, characterized in that, The seat cushion has a raised area on the middle surface to support the buttocks. The buttock support area is wide on both sides and narrows in the middle. The seat cushion has hip support wings on both the left and right sides to support the human buttocks. An arc-shaped protrusion is provided in the middle of the front side of the seat cushion, and a leg support area for supporting the legs is provided between the arc-shaped protrusion and the two leg support wings on both sides. The upper surface of the seat cushion, near the backrest, has a raised, elongated coccyx decompression zone designed to relieve pressure on the coccyx. The backrest has an oval-shaped spinal support area near the front of the seat cushion to support the human spine. The backrest has lumbar support wings that extend forward and taper inward at the ends on both sides. The hip support area, coccyx decompression area, and spine support area are filled with latex, while the hip support wings and lumbar support wings are filled with rigid support material made of palm.

2. A reduced pressure, latex seat cushion for improving respiratory distress according to claim 1, wherein, The pressure-relieving latex seat cushion measures 46cm in length, 45cm in width, and 34cm in height.

3. A reduced pressure latex seat cushion for improving respiratory distress according to claim 1, wherein, The material of the hard seat cushion molding plate is ABS resin.

4. A pressure-reducing latex seat cushion for improving respiratory distress as described in claim 1, characterized in that, The sponge is a memory foam.

5. A reduced pressure latex seat cushion for improving respiratory distress according to claim 1, wherein, The seat body and backrest of the hard seat cushion shaping plate are reinforced with ribs, and the hard seat cushion shaping plate is provided with several ventilation holes.

6. A pressure-reducing latex seat cushion for improving respiratory distress as described in claim 1, characterized in that, Breathable fabrics are mesh fabrics, breathable cotton fabrics, or synthetic fiber fabrics with breathable functions.

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