Anti-decubitus simulation mattress with pneumatic point matrix adjustment

Abstract

Anti-decubitus simulation mattress with pneumatic point matrix adjustment, comprising a mattress body consisting of a support layer (1), a pneumatic component layer (2) and a frame layer, wherein the support layer (1) and the pneumatic component layer (2) are both enclosed by the frame layer and the support layer (1) is located above the pneumatic component layer (2); wherein the support layer (1) comprises a cover plate (101) and several airbags (102); wherein the airbags (102) are all arranged on the top of the cover plate (101), and a connecting tube (103) for venting the airbags (102) is provided on the underside of the cover plate (101); wherein the pneumatic component layer (2) comprises a mounting plate (201), several air storage chambers (202), air guide tubes (203) and an air pump (204);wherein the multiple air storage chambers (202) are mounted on a top surface of the mounting plate (201), wherein a pair of air guide tubes (203) is connected to the multiple air storage chambers (202), and a pair of air guide tubes (203) is symmetrically mounted on the outside of the air pump (204); and wherein the cover plate (101) and the mounting plate (201) are connected to each other by multiple support columns.

Description

Technical field This utility model relates to the technology of care devices, in particular an anti-decubitus simulation mattress with pneumatic point matrix adjustment. State of the art Pressure ulcers, also known as bedsores, develop from sustained pressure on a localized area of ​​the body. This leads to prolonged ischemia, oxygen deprivation, malnutrition, and ultimately tissue necrosis and ulceration. Pressure ulcers are common in people with limited mobility or those who are bedridden for extended periods. Because these patients cannot move freely and maintain the same position for long periods, the localized pressure on their bodies increases their susceptibility to developing pressure ulcers. In real-world nursing practice, bedridden elderly people with disabilities or post-operative patients are prone to pressure ulcers because they can no longer turn themselves over, and the surrounding skin tissue is under pressure for extended periods. This not only causes severe physical pain for the patients but also increases the burden on their caregivers. Content of the utility model The purpose of this utility model is to provide a point matrix pneumatic pressure ulcer simulation mattress to solve the problem described in the prior art, namely that disabled elderly people or postoperative patients who are bedridden for long periods are prone to pressure ulcers due to the loss of their ability to turn over independently, and that the local skin tissue is subjected to long-term pressure; this causes pain for the patients and increases the burden on relatives. To achieve the aforementioned objectives, this utility model offers the following technical solution: a pneumatically adjustable anti-decubitus mattress with point matrix technology. It consists of a mattress body with a support layer, a pneumatic component layer, and a frame layer. The support and pneumatic component layers are enclosed by the frame layer, with the support layer positioned above the pneumatic component layer. The support layer includes a top plate and airbags. The airbags are mounted on the top of the top plate, and a connecting tube for airbag inflation is located on its underside. The pneumatic component layer comprises a mounting plate, air storage chambers, air guide tubes, and an air pump. Several air storage chambers are mounted on the top of the mounting plate, and two air guide tubes are connected to each chamber.Two additional air guide tubes are symmetrically attached to the outside of the air pump. The cover plate and mounting plate are connected by several support columns. Preferably, the carrier layer consists of forty independent airbags; each airbag has a mounting block at its four corners on the underside, which is attached to the top plate with screws. Preferably, a solenoid valve is installed on the outside of the connecting pipe. Preferably, the top surface of the mounting plate is provided with a first, a second, and a third mounting groove. The air storage chamber is installed in the first mounting groove, the air guide tube in the second mounting groove, and the air pump in the third mounting groove. Preferably, the support column consists of a support cylinder and a mounting column. The support cylinder is attached to the top of the mounting plate, and the mounting column is attached to the underside of the cover plate. The mounting column slides within the support cylinder. Preferably, the frame layer consists of side plates, L-shaped frames and a rotating shaft, wherein a side plate is rotatably connected between two adjacent L-shaped frames via the rotating shaft. Preferably, a strong magnetic plate is attached to the inside of one of the side plates and to the outside of the top plate, which are arranged horizontally parallel to each other, attracting each other. Compared to the prior art, this utility model offers the following advantages: The use of a dot matrix support layer consisting of forty independent airbags allows each airbag to be individually inflated via a corresponding solenoid valve, an air storage chamber, and an air pump. Compared to conventional zoned or alternating pressure mattresses, this design enables more precise local pressure control. Depending on the patient's body position and pressure requirements in different body regions (such as the sacrum, coccyx, scapula, heels, and other areas at risk for pressure ulcers), individual airbags or groups of airbags can be independently inflated, deflated, or have their pressure kept constant. This optimizes pressure distribution within the dot matrix, significantly reduces the risk of sustained pressure on the surrounding tissue, and, from a mechanistic perspective, prevents pressure ulcers more effectively. Brief description of the drawings Fig. 1 is a schematic three-dimensional frontal view of the structure of this utility model; Fig. 2 shows an enlarged view of point A in Fig. 1 of this utility model; Fig. 3 shows an enlarged view of section B in Fig. 1 of this utility model; Fig. 4 is a schematic diagram showing the disassembled structure of the support layer and the pneumatic component layer of this utility model; Fig. 5 is a schematic diagram of the layer structure of the pneumatic components of this utility model; Fig. 6 is a schematic diagram showing the internal structure of the support column of this utility model. Reference symbol list 1. Carrier layer; 101. Cover plate; 102. Airbag; 103. Connecting tube; 2. Pneumatic component layer; 201. Mounting plate; 202. Air reservoir chamber; 203. Air guide tube; 204. Air pump; 3. Mounting block; 4. Solenoid valve; 5. First mounting slot; 6. Second mounting slot; 7. Third mounting slot; 8. Support cylinder; 9. Mounting column; 10. Side plate; 11. L-shaped frame; 12. Rotating shaft; 13. High-strength magnet plate. Detailed description The technical solutions of this utility model are described in detail and in full below with reference to the accompanying drawings of the exemplary embodiments. The described exemplary embodiments naturally represent only some, not all, embodiments of this utility model. All further embodiments that result from the exemplary embodiments of this utility model and that can be deduced by a person skilled in the art without inventive step are covered by the scope of protection of this utility model. Please refer to Figures 1-6, which show an embodiment of this utility model: The anti-decubitus simulation mattress with pneumatic point matrix adjustment comprises a mattress body consisting of a support layer 1, a pneumatic component layer 2, and a frame layer. Both the support layer 1 and the pneumatic component layer 2 are enclosed by the frame layer, with the support layer 1 located above the pneumatic component layer 2. The support layer 1 consists of a cover plate 101 and airbags 102. The airbags 102 are mounted on the top of the cover plate 101, and a connecting tube 103 for air supply is located on its underside. The pneumatic component layer 2 comprises a mounting plate 201, air storage chambers 202, air guide tubes 203, and an air pump 204.Several air storage chambers 202 are mounted on the top of the mounting plate 201 and connected to it by two air guide tubes 203. Two further air guide tubes 203 are mounted symmetrically on the outside of the air pump 204. The cover plate 101 and the mounting plate 201 are enclosed by the frame layer. The 201 are connected to each other by several support columns. Furthermore, Fig. 1 shows that the carrier layer 1 consists of forty independent airbags 102; each airbag 102 has a mounting block 3 which is fixed at its four corners on the underside, and the mounting block 3 is fixed to the cover plate 101 with screws. The use of forty independent airbags 102, forming a dot matrix-like support structure, allows for more precise local pressure adjustment to different parts of the patient's body, thus improving pressure ulcer prevention. Each airbag 102 is connected to the cover plate 101 by screws through the mounting blocks 3 at the four corners of the underside. This not only ensures the stability of the airbag 102 during frequent inflation and deflation, but also facilitates the disassembly and replacement of individual airbags 102, thereby reducing maintenance costs. Furthermore, as shown in Fig. 5, a solenoid valve 4 is attached to the outside of the connecting pipe 103. The solenoid valve 4 enables fast, independent, and programmable control of the inflation and deflation of the Airbag 102. Compared to mechanical valves, the solenoid valve reacts significantly faster, resulting in more precise control and enabling on / off cycles in the millisecond range. This supports various anti-decubitus modes, such as alternating inflation and wave-like decompression, and enhances the intelligent adaptation functions of the mattress. Furthermore, the upper surface of the mounting plate 201, as shown in Fig. 4, is provided with a first mounting groove 5, a second mounting groove 6, and a third mounting groove 7. The air storage chamber 202 is installed in the first mounting groove 5, the air guide tube 203 in the second mounting groove 6, and the air pump 204 in the third mounting groove 7. By integrating the air storage chamber 202, the air guide tube 203, and the air pump 204 into the designated mounting slots of the mounting plate 201, a modular and compact arrangement of the pneumatic component layer 2 is achieved. This design not only prevents the lines from becoming entangled and the components from coming loose, but also allows for quick positioning, inspection, or replacement of individual defective components. This improves assembly efficiency and simplifies subsequent maintenance. Furthermore, the support column, as shown in Fig. 6, consists of a support cylinder 8 and a mounting column 9. The support cylinder 8 is attached to the top of the mounting plate 201, and the mounting column 9 is attached to the underside of the cover plate 101. The mounting column 9 slides within the support cylinder 8. Understandably, the support column consists of a support cylinder 8 and a mounting column 9, which facilitates the disassembly of the cover plate 101 and the mounting plate 201 by the maintenance personnel in later phases. Furthermore, Fig. 3 shows that the frame layer consists of side plates 10, L-shaped frames 11 and a rotating shaft 12, wherein a side plate 10 is rotatably connected between two adjacent L-shaped frames 11 via the rotating shaft 12. One of the side panels 10 is rotatably connected to the L-shaped frame 11 via a pivot shaft 12, giving the frame structure a door-like appearance. If the mattress does not need to be completely disassembled, caregivers can open the side panel 10 to perform routine inspections, cleaning, or repairs to the internal airbags 102, connecting tubes 103, solenoid valves 4, and pneumatic components. This significantly reduces maintenance and downtime. Furthermore, as shown in Fig. 1, a strong magnetic plate 13 is attached, which attracts itself. This is attached to the inside of one of the side plates 10 and to the outside of the top plate 101, which run horizontally parallel to each other. Utilizing the magnetic force of the strong magnetic plate 13 for quickly attaching and detaching the side plate 10 and the top plate 101 ensures reliable closure of the side plate 10 during mattress use and simultaneously avoids the cumbersome, tool-free disassembly required with conventional buckle or screw constructions. Caregivers can open and close the side plate 10 with one hand, which significantly simplifies operation in both everyday situations and emergencies. The operating principle of the anti-decubitus simulation mattress with pneumatic point matrix adjustment in this embodiment is as follows: When the anti-decubitus simulation mattress is in operation, the air pump 204 of the pneumatic component layer 2 serves as the central air source. It supplies compressed air to a pair of air guide tubes 203 and from there into several air storage chambers 202 for pressure stabilization and buffering in order to eliminate air pressure fluctuations. Subsequently, the gas passes via the connecting tube 103, which is configured separately for each air chamber 102, into the forty independent airbags 102 of the air chamber 102 support layer 1. During this process, the solenoid valve 4 installed on the outside of each connecting tube 103 opens or closes independently of each other according to the preset control command, thus precisely controlling the inflation and deflation of the corresponding airbag 102; When one or more solenoid valves 4 are opened, compressed air flows into the corresponding airbag 102 and inflates it to support the relevant part of the patient's body; when the solenoid valve 4 is closed and a deflation process is carried out, the airbag 102 contracts, thereby reducing or eliminating the supporting pressure on that part of the body; Through this independent and sequential control of the forty point matrix distributed airbags 102, a dynamic pressure distribution can be generated on the mattress surface, thereby continuously shifting the long-term contact point between the patient's body and the mattress and thus avoiding permanent pressure on local tissue; the entire pneumatic component layer 2 and the airbag 102 carrier layer 1 are enclosed and held by the frame layer, with one side of the frame layer being able to be opened along the rotating shaft 12 and fixed by adsorption with the strong magnetic plate 13, which facilitates daily maintenance. It is apparent to those skilled in the art that the present utility model is not limited to the embodiments described above and can be implemented in other specific forms without deviating from the essence or essential features of the utility model. The embodiments are therefore to be understood as exemplary in every respect and not as limiting. The scope of protection of the utility model is defined by the attached claims and not by the foregoing description. Thus, all variations that fall within the meaning and scope of protection of the claims are intended to be covered by the utility model. Reference numerals in the claims do not limit the scope of protection.

Claims

Anti-decubitus simulation mattress with pneumatic point matrix adjustment, comprising a mattress body consisting of a support layer (1), a pneumatic component layer (2) and a frame layer, wherein the support layer (1) and the pneumatic component layer (2) are both enclosed by the frame layer and the support layer (1) is located above the pneumatic component layer (2); wherein the support layer (1) comprises a cover plate (101) and several airbags (102); wherein the airbags (102) are all arranged on the top of the cover plate (101), and a connecting tube (103) for venting the airbags (102) is provided on the underside of the cover plate (101); wherein the pneumatic component layer (2) comprises a mounting plate (201), several air storage chambers (202), air guide tubes (203) and an air pump (204);wherein the multiple air storage chambers (202) are mounted on a top surface of the mounting plate (201), wherein a pair of air guide tubes (203) is connected to the multiple air storage chambers (202), and a pair of air guide tubes (203) is symmetrically mounted on the outside of the air pump (204); and wherein the cover plate (101) and the mounting plate (201) are connected to each other by multiple support columns. Anti-decubitus simulation mattress with pneumatic point matrix adjustment according to claim 1, characterized in that the support layer (1) consists of forty independent airbags (102); each airbag (102) has a mounting block (3) which is firmly connected at the four corners of its lower end, and the mounting block (3) is firmly connected to the top plate (101) by means of screws. Anti-decubitus simulation mattress with pneumatic point matrix adjustment according to claim 1, characterized in that a solenoid valve (4) is attached to the outside of the connecting tube (103). Anti-decubitus simulation mattress with pneumatic point matrix adjustment according to claim 1, characterized in that the top of the mounting plate (201) is provided with a first mounting groove (5), a second mounting groove (6) and a third mounting groove (7), the air storage chamber (202) is installed in the first mounting groove (5), the air guide tube (203) is installed in the second mounting groove (6) and the air pump (204) is installed in the third mounting groove (7). Anti-decubitus simulation mattress with pneumatic point matrix adjustment according to claim 1, characterized in that: the support column consists of a support cylinder (8) and a mounting column (9), the support cylinder (8) is attached to the top of the mounting plate (201), the mounting column (9) is attached to the bottom of the cover plate (101) and the mounting column (9) slides in the support cylinder (8). Anti-decubitus simulation mattress with pneumatic point matrix adjustment according to claim 1, characterized in that the frame layer consists of side plates (10), L-shaped frames (11) and a rotating shaft (12), wherein one of the side plates (10) is rotatably connected via the rotating shaft (12) between two adjacent L-shaped frames (11). Anti-decubitus simulation mattress with pneumatic point matrix adjustment according to claim 6, characterized in that: a strong magnetic plate (13) which attracts itself is attached to the inside of one of the side plates (10) and the outside of the top plate (101), which run horizontally parallel to each other.

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