An air mattress for treating pressure ulcers in the sacrococcygeal region.

Abstract

This invention provides an air mattress for treating pressure ulcers in the sacrococcygeal region, comprising an air mattress body, a first airbag sleeve, a second airbag sleeve, a movable airbag, and an inflation structure. The air mattress body has a sacrococcygeal pressure-resistant window. The first and second airbag sleeves are fixedly connected to both ends of the air mattress body. The movable airbag is installed inside the airbag sleeve. The inflation structure is used for inflation. In use, the air mattress body is first inflated, then the patient is placed on the air mattress body, with the sacrococcygeal pressure-resistant window aligned with the location of the pressure ulcer near the patient's sacrococcygeal region. The movable airbag is then installed inside the airbag sleeve. This invention avoids direct contact between the pressure ulcer and the air mattress surface, thus preventing pressure or repeated friction on the pressure ulcer and shortening the treatment cycle. This invention can change the relative position of the sacrococcygeal pressure-resistant window on the air mattress body to precisely match the location of the pressure ulcer. This invention can prevent excess airbags from accumulating at the beginning and end of the mattress, ensuring patient comfort.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, specifically to an air mattress for treating pressure sores in the sacrococcygeal region. Background Technology

[0002] Sacrococcygeal pressure ulcers refer to ischemic and hypoxic ulcerative lesions of the skin and subcutaneous tissue in the sacrococcygeal region caused by prolonged pressure and impaired local blood circulation. The main cause is prolonged bed rest or sitting, which subjects the sacrococcygeal region to continuous body pressure, leading to insufficient nutrient supply to the local tissues and gradually resulting in damage and necrosis. If this condition is not treated promptly, it may lead to complications such as infection, affecting the patient's recovery process and increasing the difficulty of nursing care.

[0003] In clinical practice, traditional static air mattresses are commonly used to prevent pressure ulcers. The problems are: 1) Some patients already have sacrococcygeal pressure ulcers before using an air mattress. Since existing static air mattresses are one-piece inflatable structures, these ulcers are still subjected to pressure or repeated friction, increasing the risk of infection and prolonging the treatment period; 2) Pressure ulcers may appear in different areas near the sacrococcygeal region, resulting in different areas requiring special protection. Traditional static air mattresses cannot provide precise support and pressure relief for these varying needs, potentially causing existing pressure ulcers to continue to bear significant pressure, thus affecting the recovery process.

[0004] For patients with existing pressure ulcers on the sacrococcygeal region, a cotton pad is usually placed on the sacrococcygeal region in clinical practice to elevate the pressure ulcer and prevent it from directly contacting the air mattress. However, this approach has several problems: the cotton pad lacks an effective fixing structure to the surface of the air mattress, and it is prone to shifting when the patient turns over or changes position slightly, causing the pressure ulcer to come into contact with the air mattress and weakening the protective effect. Secondly, the elasticity and shapeability of the cotton pad are limited, and its support surface does not fit well with the patient's sacrococcygeal region, resulting in relatively concentrated local pressure, which can easily cause the patient to experience a significant foreign body sensation, causing discomfort and affecting the patient's quality of rest.

[0005] Therefore, how to design an air mattress for treating sacrococcygeal pressure ulcers that can prevent continuous pressure from the air mattress surface is a technical problem that has not yet been solved in the existing technology. Utility Model Content

[0006] Therefore, the technical problem to be solved by this utility model is to overcome the technical defects in the prior art that the air mattress will continuously compress or rub against the patient's sacral and coccygeal pressure sores, thus increasing the risk of infection. In this way, an air mattress for treating sacral and coccygeal pressure sores can be provided that can prevent the sacral and coccygeal pressure sores from being continuously compressed by the air mattress surface.

[0007] Therefore, this utility model provides an air mattress for treating pressure ulcers in the sacrococcygeal region, comprising: an air mattress body with a sacrococcygeal pressure-resistant window formed in the middle; at least one first airbag sleeve fixedly connected to one end of the air mattress body; at least one second airbag sleeve fixedly connected to the other end of the air mattress body; at least one movable airbag detachably installed in the first airbag sleeve or the second airbag sleeve; and an inflation structure for inflating the air mattress body and the movable airbag.

[0008] As a preferred embodiment, the air mattress body includes: a second airbag group; a third airbag group, disposed opposite to the second airbag group; and two first airbag groups, respectively fixedly disposed at both ends of the second airbag group and the third airbag group, forming the sacral and coccygeal pressure-resistant window together with the second airbag group and the third airbag group; the first airbag sleeve is fixedly connected to one end of one first airbag group, and the second airbag sleeve is fixedly connected to one end of the other first airbag group.

[0009] As a preferred embodiment, the inflation structure includes: an inflation manifold, one end of which is adapted to connect to an air pump, and the other end is closed; several branch pipes, uniformly and integrally disposed on the inflation manifold and connected to the inflation manifold; the air outlet of the branch pipe is connected to the inner cavity of the second airbag group and the first airbag groups at both ends; and a first connecting pipe, fixedly installed in the third airbag group, with its air inlet connected to the inner cavity of the first airbag group at one end.

[0010] As a preferred embodiment, the system further includes: a one-way valve, fixedly disposed inside one end of the movable airbag and communicating with the inner cavity of the movable airbag, for allowing gas to be injected into the movable airbag and preventing internal air from flowing out; an inflation nozzle, hollow and open at both ends, with its insertion end detachably plugged into one end of the one-way valve, and its inner cavity communicating with the one-way valve; and switching valves, the number of which corresponds to the number of the first airbag sleeve and the second airbag sleeve, one end fixedly connected to the other end of the inflation nozzle, and the other end integrally disposed on the inflation manifold; the switching valves communicating with the inflation manifold and the inflation nozzle, for controlling the on / off state of air injection into the movable airbag through the inflation manifold.

[0011] As a preferred embodiment, the one-way valve includes: a second connecting tube, one end of which is fixedly disposed on the inner wall of one end of the movable airbag, and the other end extending into the inner cavity of the movable airbag; a fixed shell, hollow and open at both ends, one end of which is fixedly installed at the other end of the second connecting tube, having an installation cavity; a connecting tube, one end of which is integrally formed at the opening at the other end of the fixed shell, and positioned within the installation cavity; an elastic element, sleeved on the connecting tube, one end of which abuts against the inner bottom wall of the installation cavity; and a sealing gasket, movably installed within the installation cavity, one side of which abuts against the other end of the elastic element, and the other side of which seals against the other end of the second connecting tube; in the initial state, the sealing gasket seals the other end of the second connecting tube by the elastic thrust of the elastic element; when the insertion end of the inflation nozzle is inserted into the one-way valve, the inflation nozzle pushes the sealing gasket toward the connecting tube, so that the inner cavity of the inflation nozzle communicates with the installation cavity, allowing gas to enter the movable airbag.

[0012] As a preferred embodiment, the inflation nozzle is detachably and pluggably connected to one end of the one-way valve via a detachable snap-fit ​​structure; the detachable snap-fit ​​structure includes: at least two snap-fit ​​grooves, which are oppositely formed on the second connecting pipe near the inflation nozzle; and at least two snap-fit ​​blocks, which are movably mounted on the inflation nozzle and are disposed opposite to the snap-fit ​​grooves; the snap-fit ​​blocks can match and snap-fit ​​with the snap-fit ​​grooves, thereby detachably and pluggably connecting the inflation nozzle to one end of the one-way valve.

[0013] As a preferred embodiment, the inflation nozzle has an installation groove, and a limiting baffle is formed in the middle of the opening of the installation groove; the snap-fit ​​block is movably installed in the installation groove and is limited in the installation groove by the limiting baffle; it also includes a spring clamp plate, which is fixedly installed in the installation groove. When the snap-fit ​​block is installed in the installation groove, the installation position is at the top of the spring clamp plate, and the snap-fit ​​block is movably installed in the installation groove by the spring clamp plate.

[0014] As a preferred embodiment, the snap-fit ​​block includes a pressing portion, a connecting portion formed at one end of the pressing portion, and a snap-fit ​​portion formed at one end of the connecting portion, the snap-fit ​​portion being capable of engaging with the snap-fit ​​groove; after the snap-fit ​​block is installed in the snap-fit ​​groove, the connecting portion is located at the bottom of the limiting baffle.

[0015] As a preferred embodiment, the switch valve includes: a valve body, hollow and open at both ends, one end integrally mounted on the inflation manifold, and the other end fixedly connected to the other end of the inflation nozzle; a spherical valve core, rotatably mounted in the valve body, having a through-hole for simultaneously communicating with the inflation manifold and the inflation nozzle; and a handle, one end mounted on the spherical valve core and the other end extending to the outside of the valve body; rotating the handle causes the spherical valve core to rotate, enabling the through-hole to simultaneously communicate with or disconnect from the inflation manifold and the inflation nozzle.

[0016] As a preferred embodiment, a filling airbag is detachably installed inside the sacrococcygeal pressure relief window, and a one-way valve is fixedly provided on one side of the filling airbag, through which the filling airbag can be inflated.

[0017] The technical solution provided by this utility model has the following advantages: This utility model relates to an air mattress for treating pressure ulcers in the sacrococcygeal region, comprising an air mattress body, a first airbag sleeve, a second airbag sleeve, a movable airbag, and an inflation structure; wherein a sacrococcygeal pressure-resistant window is formed in the middle of the air mattress body; at least one first airbag sleeve is fixedly connected to one end of the air mattress body; at least one second airbag sleeve is fixedly connected to the other end of the air mattress body; at least one movable airbag is detachably installed inside the first or second airbag sleeve; and the inflation structure is used to inflate the air mattress body and the movable airbag.

[0018] When using the air mattress of this invention for treating pressure ulcers in the sacrococcygeal region, first place the main body of the air mattress on the bed, then inflate it using the inflation structure. After inflating to an appropriate pressure, place the patient on the main body of the air mattress. During placement, move the main body of the air mattress so that the sacrococcygeal pressure relief window in the middle is aligned with the location of the pressure ulcer near the patient's sacrococcygeal region. Then, depending on the patient's specific lying position, install an appropriate number of movable airbags in the first or second airbag sleeve and inflate them using the inflation structure. This ensures that all parts of the patient's body receive appropriate support, guaranteeing the patient's comfort while lying down.

[0019] This invention features a sacral and coccygeal pressure-resistant window, preventing direct contact between the patient's sacral and coccygeal pressure ulcers and the air mattress surface. This avoids pressure or repeated friction, reducing the risk of infection and shortening the treatment period. Secondly, by adjusting the number and placement of the movable airbags, the relative position of the sacral and coccygeal pressure-resistant window on the air mattress body can be altered, allowing for precise targeting of pressure ulcers in different areas of the sacral and coccygeal region, thus improving adaptability. Furthermore, the movable airbags can be freely inserted into the first or second airbag sleeve to accommodate beds of different lengths, preventing excess airbags from accumulating at the head and tail of the bed and ensuring the patient's stability and comfort while lying down. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the prior art or specific embodiments of this utility model, the accompanying drawings used in the description of the prior art or specific embodiments are briefly introduced below.

[0021] Figure 1 This is a schematic diagram of the overall structure of the air mattress of this utility model for treating pressure ulcers in the sacrococcygeal region.

[0022] Figure 2 yes Figure 1 A schematic diagram of the explosion structure.

[0023] Figure 3 yes Figure 2 Enlarged structural diagram of part A.

[0024] Figure 4 yes Figure 2 Enlarged structural diagram of section B.

[0025] Figure 5 yes Figure 4 Sectional view of part D.

[0026] Figure 6 yes Figure 5 Enlarged structural diagram of section E in the middle.

[0027] Figure 7 yes Figure 5 Enlarged structural diagram of section F in the middle.

[0028] Figure 8 yes Figure 2 A magnified schematic diagram of the structure of section C.

[0029] Reference numerals: 1. Air mattress body; 10. Sacrococcygeal pressure relief window; 101. Filling airbag; 11. First airbag group; 12. Second airbag group; 13. Third airbag group; 14. First connecting pipe; 21. First airbag sleeve; 22. Second airbag sleeve; 3. Movable airbag; 4. Inflation main pipe; 5. Diverter pipe; 6. Switch valve; 61. Valve body; 62. Ball valve core; 621. Connecting channel; 63. Handle; 7. Inflation nozzle; 8. One-way valve; 81. Second connecting pipe; 82. Fixed shell; 821. Mounting cavity; 83. Connecting pipe; 84. Elastic element; 85. Sealing gasket; 91. Snap-fit ​​groove; 92. Mounting groove; 921. Limiting baffle; 93. Spring clamp; 94. Snap-fit ​​block; 941. Pressing part; 942. Connecting part; 943. Snap-fit ​​part. Detailed Implementation

[0030] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0031] It should be noted that the terms "first," "second," etc., in the claims and specification of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such as a process, method, system, product, or device that includes a series of steps or units, not limited to those steps or units explicitly listed, but may also include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0032] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the term "multiple" should mean two or more. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0033] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0034] This embodiment provides an air mattress for treating pressure ulcers in the sacrococcygeal region, such as... Figure 1-2 As shown, the device includes an air mattress body 1, a first airbag sleeve 21, a second airbag sleeve 22, a movable airbag 3, and an inflation structure. The air mattress body 1 has a sacral-coccygeal pressure-resistant window 10 formed in its middle. At least one first airbag sleeve 21 is fixedly connected to one end of the air mattress body 1. At least one second airbag sleeve 22 is fixedly connected to the other end of the air mattress body 1. At least one movable airbag 3 is detachably installed inside either the first airbag sleeve 21 or the second airbag sleeve 22. The inflation structure is used to inflate the air mattress body 1 and the movable airbag 3.

[0035] When using the air mattress of this embodiment for treating pressure ulcers in the sacrococcygeal region, first place the main body 1 of the air mattress on the bed, then inflate it through the inflation structure. After inflating to an appropriate pressure, place the patient on the main body 1 of the air mattress. During placement, move the main body 1 of the air mattress so that the sacrococcygeal pressure relief window 10 in the middle is aligned with the location of the pressure ulcer near the patient's sacrococcygeal region. Then, depending on the patient's specific lying position, install an appropriate number of movable airbags 3 in the first airbag sleeve 21 or the second airbag sleeve 22, and inflate them through the inflation structure so that all parts of the patient's body can receive appropriate support to ensure the patient's lying comfort.

[0036] This embodiment features a sacrococcygeal pressure relief window 10, which prevents pressure sores on the patient's sacrococcygeal region from directly contacting the surface of the air mattress, thus avoiding pressure or repeated friction, reducing the risk of infection, and shortening the treatment cycle. Secondly, this embodiment can change the relative position of the sacrococcygeal pressure relief window 10 on the air mattress body 1 by adjusting the number and installation position of the movable airbags 3, thereby enabling the sacrococcygeal pressure relief window 10 to provide precise fit for pressure sores in different areas near the sacrococcygeal region, improving the adaptability to pressure sores in different areas near the sacrococcygeal region. In addition, the movable airbags 3 in this embodiment can be freely inserted into the first airbag sleeve 21 or the second airbag sleeve 22 to adapt to beds of different lengths, avoiding the accumulation of excess airbags at the beginning and end of the bed, thereby ensuring the stability and comfort of the patient while lying down.

[0037] Here, both the first airbag sleeve 21 and the second airbag sleeve 22 are made of fabric material that is not easily deformed; the outer diameter of the inflated movable airbag 3 is larger than the inner diameter of the airbag sleeve, so that the movable airbag 3 is tightly fitted inside the first airbag sleeve 21 or the second airbag sleeve 22.

[0038] It should be noted that the first airbag sleeve 21 and the second airbag sleeve 22 are both fixedly connected to the air mattress body 1. If some airbag sleeves do not have movable airbags 3 installed, the excess parts can be folded at the bottom of the air mattress, which can improve the cleanliness of the mattress surface without affecting normal use.

[0039] The air mattress body 1 includes a first airbag group 11, a second airbag group 12, and a third airbag group 13; wherein the third airbag group 13 is arranged opposite to the second airbag group 12; there are two first airbag groups 11, which are respectively fixedly arranged at both ends of the second airbag group 12 and the third airbag group 13, forming the sacral and coccygeal pressure relief window 10 together with the second airbag group 12 and the third airbag group 13; the first airbag sleeve 21 is fixedly connected to one end of one first airbag group 11, and the second airbag sleeve 22 is fixedly connected to one end of the other first airbag group 11.

[0040] like Figure 3-4 As shown, the inflation structure includes an inflation main pipe 4, a branch pipe 5, and a first connecting pipe 14. One end of the inflation main pipe 4 is adapted to connect to an air pump, and the other end is closed. Several branch pipes 5 are uniformly and integrally arranged on the inflation main pipe 4 and connected to it. The air outlet of the branch pipe 5 is connected to the inner cavity of the second airbag group 12 and the first airbag groups 11 at both ends. The first connecting pipe 14 is fixedly installed in the third airbag group 13, and its air inlet is connected to the inner cavity of the first airbag group 11 at one end. The inflation main pipe 4, together with the branch pipes 5 and the first connecting pipe 14, can realize the synchronous inflation of each airbag group of the air mattress body 1, ensuring uniform inflation, consistent support force, and simplifying the inflation operation process.

[0041] It should be noted that after inflation, each airbag group can still be interconnected through the main inflation pipe 4, the branch pipe 5 and the first connecting pipe 14, so that the air pressure in each airbag group can be adjusted to maintain the stability and balance of the overall support. In addition, the air pump of this air mattress is a common air mattress air pump on the market, which should have simple start and stop control functions, as well as the function of keeping the pipeline sealed after inflation.

[0042] like Figure 5 As shown, it also includes a switching valve 6, an inflation nozzle 7, and a one-way valve 8; wherein the one-way valve 8 is fixedly disposed inside one end of the movable airbag 3, communicating with the inner cavity of the movable airbag 3, for allowing gas to be injected into the movable airbag 3 and preventing internal air from flowing out; the inflation nozzle 7 is hollow and open at both ends, with the insertion end being pluggable into one end of the one-way valve 8, and the inner cavity communicating with the one-way valve 8; the number of switching valves 6 corresponds to the number of the first airbag sleeve 21 and the second airbag sleeve 22, one end being fixedly connected to the other end of the inflation nozzle 7, and the other end being integrally disposed on the inflation manifold 4; the switching valve 6 communicates with the inflation manifold 4 and the inflation nozzle 7, for controlling the on / off of air injection into the movable airbag 3 through the inflation manifold 4. The switching valve 6 is a commonly available stainless steel ball valve.

[0043] like Figure 6 As shown, the one-way valve 8 includes a second connecting pipe 81, a fixed shell 82, a connecting pipe 83, an elastic element 84, and a sealing gasket 85; wherein one end of the second connecting pipe 81 is fixedly disposed on the inner side wall of one end of the movable airbag 3, and the other end extends into the inner cavity of the movable airbag 3; the fixed shell 82 is hollow and open at both ends, one end is fixedly installed on the other end of the second connecting pipe 81, and has a mounting cavity 821; one end of the connecting pipe 83 is integrally formed at the opening of the other end of the fixed shell 82, and is disposed in the mounting cavity 821; the elastic element 84 is sleeved on the connecting pipe 83, and one end is connected to the sealing gasket 85. The inner bottom wall of the mounting cavity 821 abuts against the gasket 85; the sealing gasket 85 is movably installed in the mounting cavity 821, with one side abutting against the other end of the elastic member 84 and the other side sealingly abutting against the other end of the second connecting pipe 81; in the initial state, the sealing gasket 85 seals the other end of the second connecting pipe 81 by the elastic thrust of the elastic member 84; when the insertion end of the inflation nozzle 7 is inserted into the one-way valve 8, the inflation nozzle 7 pushes the sealing gasket 85 toward the connecting pipe 83, so that the inner cavity of the inflation nozzle 7 communicates with the mounting cavity 821, and gas can enter the movable airbag 3.

[0044] like Figure 7As shown, the inflation nozzle 7 is detachably and pluggably connected to one end of the one-way valve 8 via a detachable snap-fit ​​structure. The detachable snap-fit ​​structure includes snap-fit ​​grooves 91 and snap-fit ​​blocks 94. At least two snap-fit ​​grooves 91 are provided opposite to each other on the second connecting pipe 81 near the inflation nozzle 7. At least two snap-fit ​​blocks 94 are movably mounted on the inflation nozzle 7 and are positioned opposite to the snap-fit ​​grooves 91. The snap-fit ​​blocks 94 can engage with the snap-fit ​​grooves 91, thereby detachably and pluggably connecting the inflation nozzle 7 to one end of the one-way valve 8. The detachable snap-fit ​​structure ensures a stable connection between the inflation nozzle 7 and the one-way valve 8 during inflation, while also facilitating quick assembly and disassembly, thus improving connection reliability and ease of operation.

[0045] The inflation nozzle 7 has an installation groove 92, and a limiting baffle 921 is formed in the middle of the opening of the installation groove 92. The snap-fit ​​block 94 is movably installed in the installation groove 92 and is limited in the installation groove 92 by the limiting baffle 921. It also includes a spring clamp 93, which is fixedly installed in the installation groove 92. When the snap-fit ​​block 94 is installed in the installation groove 92, the installation position is at the top of the spring clamp 93, and the snap-fit ​​block 94 is movably installed in the installation groove 92 by the spring clamp 93.

[0046] The snap-fit ​​block 94 includes a pressing part 941, a connecting part 942 formed at one end of the pressing part 941, and a snap-fit ​​part 943 formed at one end of the connecting part 942. The snap-fit ​​part 943 can be matched and snapped into the snap-fit ​​groove 91. After the snap-fit ​​block 94 is installed in the snap-fit ​​groove 91, the connecting part 942 is located at the bottom of the limiting baffle 921.

[0047] The spring clamp 93 includes at least one elastic element and two elastic plates fixedly disposed at both ends of the elastic element; the limiting baffle 921 divides the opening of the mounting groove 92 into a large opening and a small opening. During installation, the spring clamp 93 is inserted into the bottom of the mounting groove 92 through the large opening, and then the snap-fit ​​part 943 of the snap-fit ​​block 94 is pushed into the top space between the limiting baffle 921 and the spring clamp 93 through the large opening until the snap-fit ​​part 943 snaps into the small opening. At this time, the pressing part 941 also reaches the large opening, and the connecting part 942 is located at the bottom of the limiting baffle 921.

[0048] Furthermore, the latching part 943 has a guide slope in the direction of the insertion end of the inflation nozzle 7, and a vertical blocking surface opposite to the guide slope. When the inflation nozzle 7 is inserted into the one-way valve 8, the latching part 943 can slide into the latching groove 91 through the guide slope, and abut against the latching groove 91 by the vertical blocking surface, thereby limiting the inflation nozzle 7 in the one-way valve 8. When it is necessary to pull the inflation nozzle 7 out of the one-way valve 8, simply press the pressing part 941, and the latching part 943 can be driven into the mounting groove 92 through the connecting part 942, so that its vertical blocking surface separates from the latching groove 91, thereby releasing the limiting state.

[0049] The switching valve 6 includes a valve body 61, a spherical valve core 62, and a handle 63. The valve body 61 is hollow and open at both ends. One end is integrally mounted on the inflation manifold 4, and the other end is fixedly connected to the other end of the inflation nozzle 7. The spherical valve core 62 is rotatably mounted inside the valve body 61 and has a through-channel 621 that connects to both the inflation manifold 4 and the inflation nozzle 7. One end of the handle 63 is mounted on the spherical valve core 62, and the other end extends to the outside of the valve body 61. Rotating the handle 63 causes the spherical valve core 62 to rotate, allowing the through-channel 621 to connect or disconnect from both the inflation manifold 4 and the inflation nozzle 7 simultaneously. The switching valve 6 can quickly and accurately control the inflation state of each movable airbag 3 installed in the airbag sleeve, and can also block the inflation nozzle without a movable airbag installed, thereby ensuring the normal use of the air mattress.

[0050] like Figure 8 As shown, a detachable inflatable airbag 101 is installed inside the sacrococcygeal pressure relief window 10. A one-way valve 8 is fixedly installed on one side of the inflatable airbag 101, allowing inflation of the inflatable airbag 101. The inflatable airbag 101 can be placed directly inside the sacrococcygeal pressure relief window 10; alternatively, for example, buckles are fixedly installed at the bottom of the inflatable airbag 101, and locking seats that engage with the buckles are fixedly installed at the top of the sacrococcygeal pressure relief window 10, thus detachably installing the inflatable airbag 101 inside the sacrococcygeal pressure relief window 10. During the acute phase of a pressure ulcer, the wound is fragile, and the inflatable airbag 101 can be removed to avoid contact and friction, promoting wound healing. During the recovery phase of a pressure ulcer, the wound gradually heals, and tissue resilience improves. At this time, the inflatable airbag 101 can be installed inside the sacrococcygeal pressure relief window 10 to provide gentle support to this area, thereby improving the patient's comfort while lying down.

[0051] It should be noted that the traditional static air mattress refers to the static air mattress produced by Guangdong Qiekang Medical Technology Co., Ltd. Static air mattresses can prevent pressure sores in the following ways: 1) Static air mattresses rely on the air inside as a cushioning medium. When a person lies down, their weight forces the air to flow in all directions, causing the mattress surface to deform adaptively and increasing the contact area with the body. This overall pressure redistribution significantly reduces the peak pressure on bony prominences (such as the heels and sacrum); 2) The even support of the air mattress maintains the smooth flow of tissue microcirculation, ensuring the delivery of oxygen and nutrients and the removal of metabolic waste; 3) The wave-like design of the mattress surface reduces the sealing pressure on the skin contact surface, helping to promote superficial blood flow, thereby further reducing the risk of tissue ischemia and pressure sores.

[0052] The air mattress used in this embodiment for treating pressure ulcers in the sacrococcygeal region is used as follows: First, place the air mattress body 1 on the bed. Then, inflate the first airbag group 11, the second airbag group 12, and the third airbag group 13 through the main inflation pipe 4, the branch pipe 5, and the first connecting pipe 14. After inflation to the appropriate pressure, place the patient on the air mattress body 1. During placement, move the air mattress body 1 so that the sacral and coccygeal pressure relief window 10 in the middle is aligned with the location of the pressure ulcer near the patient's sacrum and coccyx. Then, depending on the patient's specific lying position, install an appropriate number of movable airbags 3 inside the first airbag sleeve 21 or the second airbag sleeve 22, and insert each inflation nozzle 7 into the corresponding one-way valve 8. Then, open the corresponding switch valve 6 to inflate the movable airbags 3, so that all parts of the patient's body can receive appropriate support to ensure the patient's lying comfort. During the pressure ulcer recovery period, as the wound gradually heals and the tissue toughness improves, the filling airbags 101 can be installed inside the sacral and coccygeal pressure relief window 10 to provide gentle support to this area, thereby improving the patient's lying comfort.

[0053] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this innovative technical solution.

Claims

1. An air mattress for treating pressure ulcers in the sacrococcygeal region, characterized in that, include: The air mattress body (1) has a sacral and coccygeal pressure-resistant window (10) in the middle. At least one first airbag sleeve (21) is fixedly connected to one end of the air mattress body (1); At least one second airbag sleeve (22) is fixedly connected to the other end of the air mattress body (1); At least one active airbag (3) is detachably installed inside the first airbag sleeve (21) or the second airbag sleeve (22); An inflatable structure for inflating the air mattress body (1) and / or the active airbag (3).

2. The air mattress for treating pressure ulcers of the sacrococcygeal region according to claim 1, characterized in that, The air mattress body (1) includes: Second airbag assembly (12); The third airbag group (13) is arranged opposite to the second airbag group (12); The first airbag group (11) consists of two airbags, which are fixedly installed at both ends of the second airbag group (12) and the third airbag group (13), respectively, and together with the second airbag group (12) and the third airbag group (13) form the sacrococcygeal pressure relief window (10). The first airbag sleeve (21) is fixedly connected to one end of a first airbag assembly (11), and the second airbag sleeve (22) is fixedly connected to one end of another first airbag assembly (11).

3. The air mattress for treating pressure ulcers of the sacrococcygeal region according to claim 2, characterized in that, The inflatable structure includes: The main inflation pipe (4) is adapted to connect an air pump at one end and is closed at the other end. There are several diversion tubes (5), which are uniformly and integrally arranged on the inflation main pipe (4) and connected to the inflation main pipe (4); the air outlet of the diversion tube (5) is connected to the inner cavity of the second airbag group (12) and the first airbag group (11) at both ends. The first connecting pipe (14) is fixedly installed inside the third airbag assembly (13), and the air inlet end is connected to the inner cavity of the first airbag assembly (11) at one end.

4. The air mattress for treating pressure ulcers of the sacrococcygeal region according to claim 3, characterized in that, Also includes: A one-way valve (8) is fixedly installed inside one end of the movable airbag (3) and communicates with the inner cavity of the movable airbag (3) to allow gas to be injected into the movable airbag (3) and prevent the internal air from flowing out. An air inlet (7) is hollow and open at both ends. The insertion end can be plugged into one end of the one-way valve (8), and the inner cavity is connected to the one-way valve (8). The number of switch valves (6) corresponds to the number of the first airbag sleeve (21) and the second airbag sleeve (22). One end is fixedly connected to the other end of the inflation nozzle (7), and the other end is integrally set on the inflation manifold (4). The switch valves (6) are connected to the inflation manifold (4) and the inflation nozzle (7) and are used to control the on / off of air injection into the active airbag (3) through the inflation manifold (4).

5. The air mattress for treating pressure ulcers of the sacrococcygeal region according to claim 4, characterized in that, The one-way valve (8) includes: The second connecting tube (81) has one end fixedly disposed on the inner wall of one end of the active airbag (3), and the other end extends into the inner cavity of the active airbag (3). The fixed shell (82) is hollow and open at both ends. One end is fixedly installed at the other end of the second connecting pipe (81) and has a mounting cavity (821). The connecting pipe (83) is integrally formed at one end at the opening at the other end of the fixed shell (82) and is positioned inside the mounting cavity (821); An elastic element (84) is sleeved on the connecting pipe (83), with one end abutting against the inner bottom wall of the mounting cavity (821); The sealing gasket (85) is movably installed in the mounting cavity (821), with one side abutting against the other end of the elastic member (84) and the other side sealingly abutting against the other end of the second connecting pipe (81); In the initial state, the sealing gasket (85) seals the other end of the second connecting pipe (81) by the elastic thrust of the elastic member (84); When the insertion end of the inflation nozzle (7) is inserted into the one-way valve (8), the inflation nozzle (7) pushes the sealing gasket (85) toward the connecting pipe (83), so that the inner cavity of the inflation nozzle (7) is connected to the mounting cavity (821), and gas can enter the active airbag (3).

6. The air mattress for treating pressure ulcers of the sacrococcygeal region according to claim 5, characterized in that: The inflation nozzle (7) is pluggably connected to one end of the one-way valve (8) via a detachable snap-fit ​​structure; The detachable snap-fit ​​structure includes: At least two snap-fit ​​slots (91) are provided opposite to each other on the second connecting tube (81) near the inflation nozzle (7); At least two snap-fit ​​blocks (94) are movably mounted on the inflation nozzle (7) and are positioned opposite to the snap-fit ​​groove (91); The snap-fit ​​block (94) can be matched and snapped into the snap-fit ​​groove (91), thereby allowing the inflation nozzle (7) to be plugged into one end of the one-way valve (8).

7. The air mattress for treating pressure ulcers of the sacrococcygeal region according to claim 6, characterized in that: The inflation nozzle (7) is provided with an installation groove (92), and a limit baffle (921) is formed in the middle of the opening of the installation groove (92). The snap-fit ​​block (94) is movably installed in the mounting groove (92) and is limited in the mounting groove (92) by the limiting baffle (921); It also includes a spring clamp (93), which is fixedly installed in the mounting groove (92). When the snap-fit ​​block (94) is installed in the mounting groove (92), the installation position is on the top of the spring clamp (93), and the snap-fit ​​block (94) is movably installed in the mounting groove (92) through the spring clamp (93).

8. The air mattress for treating pressure ulcers of the sacrococcygeal region according to claim 7, characterized in that, The snap-fit ​​block (94) includes a pressing part (941), a connecting part (942) formed at one end of the pressing part (941), and a snap-fit ​​part (943) formed at one end of the connecting part (942). The snap-fit ​​part (943) can be matched and snapped into the snap-fit ​​groove (91). After the snap-fit ​​block (94) is installed in the snap-fit ​​groove (91), the connecting part (942) is located at the bottom of the limiting baffle (921).

9. The air mattress for treating pressure ulcers of the sacrococcygeal region according to claim 4, characterized in that, The switching valve (6) includes: The valve body (61) is hollow and open at both ends. One end is integrally mounted on the main inflation pipe (4), and the other end is fixedly connected to the other end of the inflation nozzle (7). A spherical valve core (62) is rotatably installed inside the valve body (61) and has a through-channel (621) that can communicate with both the inflation manifold (4) and the inflation nozzle (7). The handle (63) is mounted on the ball valve core (62) at one end and extends to the outside of the valve body (61) at the other end. Rotating the handle (63) causes the ball valve core (62) to rotate, which enables the connecting channel (621) to be connected or disconnected from the inflation manifold (4) and the inflation nozzle (7) at the same time.

10. The air mattress for treating pressure ulcers of the sacrococcygeal region according to claim 4, characterized in that: A filling airbag (101) is detachably installed inside the sacrococcygeal pressure relief window (10). A one-way valve (8) is fixedly provided on one side of the filling airbag (101), and the filling airbag (101) can be inflated through the one-way valve (8).

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