Air cushion bed system with alternating and turning-over functions
By designing adjustable-height edge-protecting airbag groups and alternating airbag groups into the air mattress system, the problem of poor fluid flow in the drainage tube during patient turning is solved, achieving the effects of safe patient transfer and smooth drainage tube flow.
Patent Information
- Application Number
- CN202410534750.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-10-31
AI Technical Summary
Existing air mattresses can easily cause poor flow or backflow of drainage fluid when the patient turns over, and the fixed height of the edge airbags cannot simultaneously meet the needs of preventing the patient from rolling off and avoiding unevenness in the tubing.
An air mattress system was designed, comprising a reclining airbag group and an adjustable-height edge airbag group. The airbag height is lowered by controlling the deflation of the bottom air chamber of the edge airbag through a deflation knob to facilitate patient transfer. The gas supply is optimized by alternating airbag groups and one-way valve groups to ensure smooth flow of the drainage tube.
It allows for the smooth placement of the drainage tube when the patient turns over, preventing fluid backflow, providing an unobstructed transfer path, and improving the user experience and quality of medical care.
Smart Images
Figure CN120859779A_ABST
Abstract
Description
[Technical Field]
[0001] This invention relates to an air mattress system, and more specifically, to an air mattress system with alternating and turning functions. [Background Technology]
[0002] A typical air mattress consists of multiple inflatable air chambers used to support the patient's body. These air chambers are usually arranged in a matrix to form a flat lying surface for the patient to lie on.
[0003] To prevent patients from rolling off the bed when turning over, some air mattresses have high, soft pads along the edges. However, patients on air mattresses often have various medical lines inserted, such as IV drips and drainage tubes. The height of the pads can obstruct the flow of these lines, causing them to bend significantly between the bed surface and the pads, potentially leading to poor fluid flow or backflow.
[0004] Some air mattresses have inflatable edge protectors on both sides. However, these conventional edge protectors cannot change their height quickly and in real time after the air mattress completes its initial inflation phase. In addition, these conventional edge protectors extend to the sides of the air mattress at a fixed height, thus failing to simultaneously meet the needs of preventing patients from rolling off and avoiding unevenness in the tubing. [Summary of the Invention]
[0005] One objective of this invention is to provide lateral protection for the patient while ensuring that the patient's drainage tube can be laid flat so that the fluid inside the tube can flow smoothly.
[0006] Another objective of this invention is to provide a smooth and unobstructed transition when a patient needs to be transferred or get out of bed, without having to cross or traverse a high sidewall structure, thereby increasing convenience and reducing the burden on caregivers.
[0007] To achieve the above and other objectives, the present invention proposes an air mattress system with alternating and turning functions, for connecting to an external air supply source. The air mattress system includes a bottom cover, a lying airbag group, and a first edge-protecting airbag group. The bottom cover has a bottom surface; the lying airbag group is disposed on the bottom surface, and the lying airbag group includes a plurality of airbags to collectively define a lying surface for the patient; the first edge-protecting airbag group is disposed on the bottom surface and located on one side of the lying airbag group, and the first edge-protecting airbag group includes a first head-side airbag. The device comprises a first mid-section airbag and a first tail-side airbag. The first mid-section airbag is positioned between the first head-side airbag and the first tail-side airbag, and its height is substantially no greater than the distance between the lying surface and the bottom surface. The first head-side airbag and the first tail-side airbag each have a bottom-level air chamber near the bottom surface and directly connected to each other. The bottom-level air chambers of the first head-side airbag and the first tail-side airbag are designed to be controlled so that, after deflation, the tops of the first head-side airbag and the first tail-side airbag are substantially lowered to the vicinity of the lying surface.
[0008] According to some embodiments of the present invention, it further includes a first deflation knob having a first deflation path for deflation of the bottom air chamber of the first head airbag and the bottom air chamber of the first tail airbag together.
[0009] According to some embodiments of the present invention, the first head airbag and the first tail airbag each have an upper airbag located above the bottom airbag.
[0010] According to some embodiments of the present invention, the upper air chamber of the first mid-section airbag, the first head-side airbag, and the upper air chamber of the first tail-side airbag are connected in series and communicate with each other.
[0011] According to some embodiments of the present invention, the recumbent airbag assembly includes a plurality of head region airbags, a plurality of first alternating airbags, and a plurality of second alternating airbags, wherein the first alternating airbags and the second alternating airbags are arranged alternately, and the head region airbags are connected to the upper air chamber of the first head side airbags through an air supply tube, wherein the upper air chamber of the first head side airbags is used to receive gas from the recumbent airbag assembly through the air supply tube.
[0012] According to some embodiments of the present invention, the first alternating airbags are connected to a first tube for control of inflation and deflation, the second alternating airbags are connected to a second tube for control of inflation and deflation, and each head area airbag is connected to the first tube and the second tube respectively through a one-way valve assembly to receive gas from the first alternating airbags and the second alternating airbags.
[0013] According to some embodiments of the present invention, a second edge protection airbag assembly is further included. The second edge protection airbag assembly is disposed on the bottom surface and located on the other side of the lying airbag assembly. The second edge protection airbag assembly includes a second head side airbag, a second middle section airbag, and a second tail side airbag. The second middle section airbag is disposed between the second head side airbag and the second tail side airbag, and its height is substantially no greater than the distance between the lying surface and the bottom surface. The second head side airbag and the second tail side airbag each have a bottom air chamber near the bottom surface and an upper air chamber located above the bottom air chamber. The bottom air chambers of the second head side airbag and the second tail side airbag are directly connected to each other. The bottom air chambers of the second head side airbag and the second tail side airbag are configured to be controlled so that, after deflation, the tops of the second head side airbag and the second tail side airbag are substantially lowered to the vicinity of the lying surface. The upper air chamber of the second head side airbag is connected to an air supply tube.
[0014] According to some embodiments of the present invention, the upper air chamber of the second mid-section airbag, the second head-side airbag, and the upper air chamber of the second tail-side airbag are connected in series and communicate with each other.
[0015] According to some embodiments of the present invention, a third tube and a first cross-connector are further included; the third tube connects the bottom air chamber of the second tail airbag, the bottom air chamber of the first tail airbag, and a first deflation knob; the first cross-connector connects the upper air chamber of the first tail airbag and the first deflation knob, and selectively connects to the bottom air chamber and the upper air chamber of the first tail airbag via the first deflation knob; wherein the first deflation knob has a first connection mode and a second connection mode, when the first deflation knob is switched to the first connection mode, the bottom air chambers of the first head airbag and the first tail airbag, and the bottom air chambers of the second head airbag and the second tail airbag are connected together via the first deflation path and deflated; wherein when the first deflation knob is switched to the second connection mode, the bottom air chamber of the first tail airbag is connected to the upper air chamber of the first tail airbag via the first cross-connector, and the bottom air chamber of the first tail airbag receives gas from the gas supply source and gas from the reclining airbag assembly via the supplementary air tube.
[0016] According to some embodiments of the present invention, a second venting knob is further included, having a second venting path for venting the bottom chamber of the second head airbag together with the bottom chamber of the second tail airbag.
[0017] According to some embodiments of the present invention, the device further includes a first cross-connector and a second cross-connector; the first cross-connector connects the upper air chamber of the first tail-side airbag to a first deflation knob, and selectively connects to the lower air chamber of the first tail-side airbag via the first deflation knob; the second cross-connector connects the upper air chamber of the second tail-side airbag to a second deflation knob, and selectively connects to the lower air chamber of the second tail-side airbag via the second deflation knob; wherein, the air supply tube further connects to the upper air chamber of the second head-side airbag, so that the upper air chamber of the second head-side airbag receives gas from the recumbent airbag assembly through the air supply tube; In this configuration, the first deflation knob has a first connection mode and a second connection mode. When the first deflation knob is switched to the first connection mode, the bottom air chamber of the first head airbag is connected to the bottom air chamber of the first tail airbag via a first deflation path for deflation, and is isolated from the upper air chamber of the first head airbag. When the first deflation knob is switched to the second connection mode, the bottom air chamber of the first tail airbag is connected to the upper air chamber of the first tail airbag via a first cross-connector. The bottom air chamber of the first tail airbag receives gas from the gas supply source and gas from the reclining airbag assembly via the supplementary air tube.
[0018] According to some embodiments of the present invention, a second venting knob is further included, having a second venting path for venting the bottom chamber of the second head airbag together with the bottom chamber of the second tail airbag.
[0019] According to some embodiments of the present invention, a first cross-connector and a second cross-connector are further included; the first cross-connector connects the upper air chamber of the first tail airbag to the first deflation knob, and selectively connects to the lower air chamber of the first tail airbag via the first deflation knob; the second cross-connector connects the upper air chamber of the second tail airbag to the second deflation knob, and selectively connects to the lower air chamber of the second tail airbag via the second deflation knob; wherein, the air supply tube further connects to the upper air chamber of the second head airbag, so that the upper air chamber of the second head airbag receives gas from the recumbent airbag assembly through the air supply tube; wherein, the first deflation knob has a first connection mode and a second connection mode, when the first deflation knob is switched to the first connection mode, the lower air chamber of the first head airbag and the lower air chamber of the first tail airbag are connected to a first deflation path for deflation, and are connected to the upper air chamber of the first head airbag. The first air release knob is isolated from the second air supply. When the first air release knob is switched to the second communication mode, the bottom air chamber of the first tail airbag is connected to the upper air chamber of the first tail airbag through the first cross-connector. The bottom air chamber of the first tail airbag receives gas from the gas supply source and gas from the recumbent airbag group through the replenishment tube. The second air release knob has a third communication mode and a fourth communication mode. When the second air release knob is switched to the third communication mode, the bottom air chamber of the second head airbag is connected to the bottom air chamber of the second tail airbag through the second air release path for air release, and is isolated from the upper air chamber of the second head airbag. When the second air release knob is switched to the fourth communication mode, the bottom air chamber of the second tail airbag is connected to the upper air chamber of the second tail airbag through the second cross-connector. The bottom air chamber of the second tail airbag receives gas from the recumbent airbag group and the gas supply source through the replenishment tube.
[0020] According to some embodiments of the present invention, the device further includes a third tube, a first one-way connecting tube, and a second one-way connecting tube; the third tube connects the bottom air chamber of the second tail airbag, the bottom air chamber of the first tail airbag, the second deflation knob, and the first deflation knob; the first one-way connecting tube connects the upper air chamber of the first tail airbag and the first deflation knob, and selectively connects to the bottom air chamber of the first tail airbag via the first deflation knob, allowing only unidirectional flow of gas from the bottom air chamber of the first tail airbag to the upper air chamber. The first air vent knob connects the upper air chamber of the second tail airbag to the second vent knob, and selectively connects to the lower air chamber of the second tail airbag via the second vent knob, allowing only unidirectional flow of gas from the lower air chamber to the upper air chamber. The first vent knob has a first connection mode and a second connection mode. When the first vent knob is switched to the first connection mode, the lower air chamber of the first head airbag and the lower air chamber of the first tail airbag are connected via a first vent path for venting. Deflating occurs simultaneously, with the bottom chamber of the second head airbag and the bottom chamber of the second tail airbag also connected to the first deflation path for deflation. When the first deflation knob is switched to the second connection mode, the bottom chamber of the first tail airbag is unidirectionally connected to the upper chamber of the first tail airbag via a first one-way connecting tube, and the bottom chamber of the first tail airbag receives gas from the gas supply source. The second deflation knob has a third connection mode and a fourth connection mode; when the second deflation knob is switched to the third connection mode... In this mode, the bottom chamber of the second head airbag and the bottom chamber of the second tail airbag are connected to the second venting path for venting. At the same time, the bottom chambers of the first head airbag and the bottom chambers of the first tail airbag are also connected to the second venting path for venting. When the second venting knob is switched to the fourth connection mode, the bottom chamber of the second tail airbag is connected to the upper chamber of the second tail airbag through the second one-way connecting pipe, and the bottom chamber of the second tail airbag receives gas from the gas supply source through the third pipe.
[0021] Thus, the air mattress system of the present invention, while providing side protection, features a design where the first middle section of the first side airbag group is approximately flush with or lower than the lying surface. This allows the drainage tube to be laid flat, preventing backflow or obstruction of fluid flow. Simultaneously, the bottom chambers of the first head and tail airbags in the first side airbag group can be controlled to deflate, thereby reducing the height of the first head and tail airbags and preventing obstruction of the transfer path when the patient needs to be transferred. Furthermore, the method of controlling the deflation of the bottom chambers of the first head and tail airbags via a first deflation knob is intuitive, quick, and convenient, thereby improving the user experience and enhancing the quality of medical or long-term care. [Attached Image Description]
[0022] Figure 1This is a partially exploded view of an air mattress system according to one embodiment of the present invention; Figure 2 for Figure 1 An exploded view of an air mattress system; Figure 3 This is a top view schematic diagram of an air mattress system according to an embodiment of the present invention; Figure 4 This is a side view schematic diagram of an air mattress system according to an embodiment of the present invention; Figure 5 for Figure 4 A schematic diagram of the air mattress system in use; Figure 6 This is a schematic diagram of the wiring configuration of an air mattress system according to an embodiment of the present invention; Figure 7 for Figure 6 A schematic diagram showing the operating state of the first vent knob; Figure 8 This is a schematic diagram of another wiring configuration of an air mattress system according to one embodiment of the present invention; Figure 9 This is a schematic diagram of another wiring configuration of an air mattress system according to an embodiment of the present invention.
Detailed Implementation Methods
[0023] To fully understand the purpose, features, and effects of the present invention, the present invention will now be described in detail with reference to the following specific embodiments and accompanying drawings:
[0024] In this application, the terms “comprising,” “including,” “having,” or any other similar terms are not limited to the elements listed herein, but may include other elements not expressly listed but which are generally inherent in the element, structure, device, part, or area.
[0025] In this application, the ordinal terms such as "first" or "second" are used to distinguish or refer to elements or structures that are the same or similar, and do not necessarily imply a spatial order of such elements, structures, devices, parts, or regions. It should be understood that in some cases or configurations, ordinal terms may be used interchangeably without affecting the implementation of the invention.
[0026] In this application, the terms "a" or "an" are used to describe elements, structures, devices, parts, or areas, etc. This is used merely for ease of explanation and to provide a general meaning for the scope of the invention. Therefore, unless it is obvious otherwise, this description should be understood to include one or at least one, and the singular also includes the plural.
[0027] The present invention provides an air mattress system with alternating and turning functions, which assists patients in turning over and alternately inflating and deflating. As an example, the air mattress system comprises an air mattress with multiple air bladders and a main unit with an air supply for inflation and deflation control. Through independent inflation and deflation control of each air bladder, the air mattress can assist in turning the patient by tilting and lifting their body. Furthermore, the air bladders can be alternately and sequentially inflated and deflated, causing the pressure on the patient's body to continuously change, thereby preventing bedsores caused by prolonged pressure on body parts. This air mattress can be used in hospitals, nursing homes, and long-term care facilities, providing a comfortable sleeping environment and active protection for patients who are bedridden for extended periods and at risk of bedsores, while also reducing the burden on caregivers.
[0028] Please refer to the following at the same time Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a partially exploded view of an air mattress system according to one embodiment of the present invention. Figure 2 for Figure 1 An exploded view of an air mattress system. Figure 3 This is a top view schematic diagram of an air mattress system according to an embodiment of the present invention. For ease of illustration and clarity, the main unit (including the air supply source), pipelines, control valves, and openings through which the pipelines pass are omitted in the drawing. However, it should be understood that such structures are all part of the embodiments of the present invention.
[0029] The air mattress system of this embodiment is connected to an external air supply source. The air mattress system mainly includes a base cover 100, a reclining airbag assembly 200, and a first edge-protecting airbag assembly 300. The base cover 100 is used to support and house all the airbag assemblies and tubing. In some cases, an outer cover 90 is also placed over it to form the outermost layer of the air mattress that contacts the patient's body. The base cover 100 has a bottom surface 100A for mounting the reclining airbag assembly 200 and the first edge-protecting airbag assembly 300. The form of the base cover 100 is not limited to… Figure 2 The examples given are limited; in some other cases, it could also be a cover or other forms.
[0030] The reclining airbag assembly 200 includes a plurality of airbags to collectively define a reclining surface 200A for the patient to lie on. As an example, in this embodiment, the reclining airbag assembly 200 includes a plurality of head area airbags 210, a plurality of first alternating airbags 220, and a plurality of second alternating airbags 230. Figure 3The head area has approximately two to three airbags 210 to support the patient's head; the first alternating airbags 220 and the second alternating airbags 230 are arranged alternately to support the patient's torso and limbs. The first alternating airbags 220 and the second alternating airbags 230 can be designed with different sizes for different body parts. For example, the height of the first alternating airbags 220 and the second alternating airbags 230 in the heel area can be lower than that of the first alternating airbags 220 and the second alternating airbags 230 in other areas.
[0031] The lying surface 200A is defined by the tops of the head region airbag 210, the first alternating airbag 220, and the second alternating airbag 230 of the lying airbag assembly 200, and is used to support the patient. It should be understood that the lying surface 200A does not directly contact the patient's body; there is an outer cover 90 between them to facilitate cleaning and isolate blood and dirt. Furthermore, the lying surface 200A adapts to the shape of the airbags and the patient's lying position or other uses, and is not simply a flat surface.
[0032] As another example, the lying-down airbag assembly 200 may also include a left-turning airbag 240 and a right-turning airbag 250, which are arranged side-by-side below the first alternating airbag 220 and the second alternating airbag 230 in the back area. When the left-turning airbag 240 is inflated and the right-turning airbag 250 is not inflated or deflated, the patient's left side will be lifted and tilted to the right; when the left-turning airbag 240 is not inflated or deflated and the right-turning airbag 250 is inflated, the patient's right side will be lifted and tilted to the left.
[0033] The first side airbag assembly 300 is located on one side of the lying airbag assembly 200 (e.g., the patient's left side). The first side airbag assembly 300 is used to stop the patient's body and prevent the patient from sliding to the edge of the bed and hitting the hard railing or even falling off the bed when turning over. The first side airbag assembly 300 includes a first head airbag 310, a first mid-section airbag 320, and a first tail airbag 330. The first mid-section airbag 320 is positioned between the first head airbag 310 and the first tail airbag 330. In use, the first mid-section airbag 320 roughly corresponds to the area from the patient's waist to the knee. Furthermore, the height of the first mid-section airbag 320 is substantially no greater than the distance between the lying surface 200A and the bottom surface 100A. In other words, the first mid-section airbag 320 is approximately level with or lower than the lying surface 200A to allow drainage tubes or IV drips implanted in the patient to pass through, preventing unevenness in the tubing that could cause obstruction or backflow of fluid. The height of the first head-side airbag 310 and the first tail-side airbag 330 is higher than the first mid-section airbag 320, thereby providing a barrier to the patient's body.
[0034] The position of the lying surface 200A or the distance between the lying surface 200A and the bottom surface 100A of the base cover 100 may vary depending on the degree of inflation of the airbag or whether a patient is lying on it. However, under normal use, regardless of whether a patient is lying on the lying surface 200A, as long as the height of the first mid-section airbag 320 is approximately equal to or lower than the lying surface 200A, it falls within the scope of this invention. In this example, during the design and manufacture of the airbag, the height of the first mid-section airbag 320 is preset to be approximately the same as or lower than the height of the first alternating airbag 220 and the second alternating airbag 230.
[0035] The first head airbag 310 and the first tail airbag 330 each have a bottom air chamber 311 and 331 that are close to the bottom surface 100A and directly connected to each other. As an example, the interior of the first head airbag 310 is divided into a bottom air chamber 311 that is isolated from each other and an upper air chamber 312 located above the bottom air chamber 311 by a partition structure (e.g., a pull strap). The interior of the first tail airbag 330 is divided into a bottom air chamber 331 that is isolated from each other and an upper air chamber 332 located above the bottom air chamber 331 by a partition structure (e.g., a pull strap).
[0036] The bottom air chamber 311 of the first head airbag 310 and the bottom air chamber 331 of the first tail airbag 330 are connected by an external pipeline and are in fluid communication. The bottom air chamber 331 of the first tail airbag 330 is connected to an external air supply source. When the first head airbag 310 and the first tail airbag 330 need to restore their height, the air supply source, the reclining airbag group 200, the head area airbag 210 or a combination thereof can be delivered to the bottom air chamber 311 of the first head airbag 310 and the bottom air chamber 331 of the first tail airbag 330 to inflate them.
[0037] The bottom air chamber 311 of the first head-side airbag 310 and the bottom air chamber 331 of the first tail-side airbag 330 are designed to be controlled so that, after deflation, the tops 310A and 330A of the first head-side airbag 310 and the first tail-side airbag 330 are substantially lowered to the vicinity of the lying surface 200A, while the first mid-section airbag 320 will not deflate during this process, maintaining its height approximately the same as or lower than the lying surface 200A, to avoid gaps between the air mattress system and the bed frame. Thus, the overall height of the first edge-protecting airbag assembly 300 will be approximately the same as or lower than the lying surface 200A, so that the patient does not need to cross or step over the higher edge-protecting structure when transferring or leaving the air mattress.
[0038] Accordingly, the air mattress system of this invention includes a first side-protecting airbag group 300 configured on one side, which cooperates with the main lying airbag group 200 to provide side protection for the patient. Within the first side-protecting airbag group 300, a first mid-section airbag 320 with a height not exceeding 200A of the lying surface is provided, which provides a smoother wiring path for medical tubing and facilitates the smooth flow of fluid within the tubing.
[0039] Furthermore, the first edge-protecting airbag assembly 300 is equipped with a first head-side airbag 310 and a first tail-side airbag 330 on its head and tail sides, respectively, and both of them have bottom air chambers 311 and 331 at their bottom. When needed, the bottom air chambers 311 and 331 can be deflated while the upper air chambers 312 and 332 remain inflated, so that the tops 310A and 330A of the bottom air chambers 311 and 331 drop to a height near the lying surface 200A, thereby providing a smoother and more convenient transition for patient transfer or getting out of bed. When the patient returns to a lying position after the transfer, only the deflated bottom air chambers 311 and 331 need to be re-inflated, without needing to re-inflate the entire edge airbag. This saves time in restoring the air mattress to a suitable lying position for the patient. Furthermore, the undeflated upper air chambers 312 and 332 and the undeflated first middle airbag 320 will not create gaps between the air mattress system and the bed frame, reducing the risk of the patient's limbs getting stuck between the air mattress and the bed frame or the patient falling due to gaps.
[0040] Please refer to the following at the same time Figures 3 to 5 , Figure 4 This is a side view schematic diagram of an air mattress system according to an embodiment of the present invention. Figure 5 for Figure 4 A schematic diagram of the air mattress system in use.
[0041] The air mattress system may include a first deflation knob 340, having a first deflation path for the bottom air chamber 311 of the first head-side airbag 310 and the bottom air chamber 331 of the first tail-side airbag 330 to deflate together. The first tail-side airbag 330 has a vent communicating with the bottom air chamber 331 for installing tubing. The first deflation knob 340 may be, for example, a one-in-two-out valve, installed on the tubing connected to the bottom air chamber 331 of the first tail-side airbag 330. When the first deflation knob 340 is switched from the closed position to the open position, the bottom air chambers 311 and 331 will form a first deflation path with the external environment, allowing the gas in the bottom air chambers 311 and 331 to be discharged.
[0042] In terms of location configuration, the first vent knob 340 can be positioned on the side of the air mattress foot near the bottom edge and exposed on the side of the bottom cover 100 by arranging the pipe length, shape and wiring path, so as to facilitate the switching operation of caregivers or caregivers.
[0043] In the first head airbag 310, the bottom air chamber 311 and the upper air chamber 312 are isolated from each other by a separating structure (e.g., a pull strap); in the first tail airbag 330, the bottom air chamber 331 and the upper air chamber 332 are isolated from each other by a separating structure (e.g., a pull strap), so that when the bottom air chambers 311 and 331 deflate, the upper air chambers 312 and 332 remain inflated to maintain the airbag height. The upper air chambers 312 of the first middle airbag 320, the first head airbag 310, and the first tail airbag 330 are connected in series and belong to the same wiring path. In this embodiment, the upper air chambers 312 of the first middle airbag 320, the first head airbag 310, and the first tail airbag 330 are connected by a series of tubing, but this is not a limitation.
[0044] The head airbag 210 of the recumbent airbag assembly 200 is connected to the upper air chamber 312 of the first head-side airbag 310 via an air inlet tube 410. This allows the upper air chamber 312 of the first head-side airbag 310 to receive gas from the recumbent airbag assembly 200 through the air inlet tube 410, accelerating the gas replenishment speed and shortening the time required for the airbag to return to its original inflated state. Furthermore, since the upper air chambers 312 of the first mid-section airbag 320, the first head-side airbag 310, and the first tail-side airbag 330 are connected, the upper air chambers 332 of the first mid-section airbag 320 and the first tail-side airbag 330 can also receive gas from the recumbent airbag assembly 200 through the upper air chamber 312 of the first head-side airbag 310. This accelerates the gas replenishment to the corresponding lower air chambers, further shortening the time required for the airbag to return to its original inflated state.
[0045] In the piping of the air mattress system, the first pipe 420 and the second pipe 430 are the main pipes connecting to the main unit (not shown). The first alternating airbag 220 is connected to the first pipe 420 for inflation and deflation control, and the second alternating airbag 230 is connected to the second pipe 430 for inflation and deflation control. The main unit controls the gas supply through the first pipe 420 and the second pipe 430 to achieve the alternating operation of the first alternating airbag 220 and the second alternating airbag 230. Each head area airbag 210 can be individually connected to the first pipe 420 and the second pipe 430 via a one-way valve assembly 440 to receive gas from the first alternating airbag 220 and the second alternating airbag 230. Gas can be unidirectionally supplied from the first pipe 420 and the second pipe 430 to the head area airbag 210. In this way, each head area airbag 210 can serve as an additional gas supply source, that is, the existing internal pressure of the airbag can replenish the air of other airbags with lower pressure connected to it, and the airbags with lower pressure can be replenished before or during the replenishment of air by the external air supply source. Accordingly, when the head airbag 210 needs to supply its internal gas to other airbags (e.g., to the airbags in the first side airbag group 300 and / or the airbags in the second side airbag group 500 mentioned later), the first tube 420 and the second tube 430 can serve as supply lines for replenishing air. Based on the configuration of the one-way valve group 440, the head airbag 210 can be isolated from the deflated state of the first alternating airbag 220 and the second alternating airbag 230 during alternation, thus preventing the head airbag 210 from replenishing air to the first alternating airbag 220 or the second alternating airbag 230 in a deflated state, thereby interfering with the alternating inflation and deflation function. Furthermore, such a configuration can provide more functions without increasing the number of pipeline channels (e.g., without providing a dedicated pipeline for the head airbag 210 to connect to an external air supply source), thereby achieving the need for multiple functions in a lower cost configuration. Furthermore, through the configuration of the one-way valve assembly 440, when the airbags in the first edge protection airbag assembly 300 need to be inflated, the combined inflating mechanism formed by the first alternating airbag 220 or the second alternating airbag 230 and the head area airbag 210 can greatly reduce the disadvantages of the traditional method of only relying on an external air supply, which results in a slow inflating speed, or only relying on the small-volume head area airbag 210 for inflating, which causes a rapid sinking sensation in the patient's head when lying down due to rapid inflating, thereby improving the patient's adaptability to lying down.
[0046] The air mattress system may further include a second edge protection airbag assembly 500, which is disposed on the bottom surface 100A and located on the other side (e.g., the right side) of the lying airbag assembly 200 to provide protection on the other side of the patient. Similar to the structure of the first edge protection airbag assembly 300, the second edge protection airbag assembly 500 includes a second head side airbag 510, a second mid-section airbag 520, and a second tail side airbag 530. The second mid-section airbag 520 is positioned between the second head side airbag 510 and the second tail side airbag 530, and its height is substantially no greater than the distance between the lying surface 200A and the bottom surface 100A so that the drainage tube can be laid flat.
[0047] The second head airbag 510 and the second tail airbag 530 each have a bottom air chamber 511, 531 near the bottom surface 100A and an upper air chamber 512, 532 located above the bottom air chamber. The bottom air chamber 511 of the second head airbag 510 and the bottom air chamber 531 of the second tail airbag 530 are connected to each other.
[0048] The bottom chamber 511 of the second head airbag 510 and the bottom chamber 531 of the second tail airbag 530 are designed to be controlled so that, after deflation, the tops 510A and 530A of the second head airbag 510 and the second tail airbag 530 are substantially lowered to the vicinity of the lying surface 200A.
[0049] The upper air chamber 512 of the second head airbag 510 can be connected to the air supply tube 410, and the upper air chambers 512 of the second mid-section airbag 520 and the second head airbag 510 and the second tail airbag 530 are connected in series, so that the upper air chambers 512 of the second mid-section airbag 520 and the second head airbag 510 and the second tail airbag 530 can receive gas from the head area airbag 210 through the air supply tube 410. In this way, the upper air chambers 312 of the first mid-section airbag 320, the first head airbag 310, the first tail airbag 330, the head area airbag 210, the second mid-section airbag 520, the second head airbag 510, and the second tail airbag 530 are interconnected to form a set of wiring paths.
[0050] Please refer to the above as well. Figures 3 to 7 , Figure 6 This is a schematic diagram of the wiring configuration of an air mattress system according to an embodiment of the present invention. Figure 7 for Figure 6 A schematic diagram showing the operating state of the first vent knob.
[0051] like Figure 6As shown, the piping of the air mattress system includes a third pipe 450 and a first cross-connector 460. The third pipe 450 connects the bottom air chamber 531 of the second tail airbag 530 and the first vent knob 340. The first cross-connector 460 connects the upper air chamber 332 of the first tail airbag 330 and the first vent knob 340, and is selectively connected to the bottom air chamber 331 of the first tail airbag 330 via the first vent knob 340. In other words, the third pipe 450 can be selectively connected to the first venting path or to the upper air chamber 332 of the first tail airbag 330 via the first vent knob 340.
[0052] A pressure sensor (not shown) can be installed on the third tube 450 to detect the internal pressure of the bottom chamber 331 of the first rear side airbag 330 of the first side airbag assembly 300 and the bottom chamber 531 of the second rear side airbag 530 of the second side airbag assembly 500, thereby reducing the occurrence of operational accidents such as the first deflation knob 340 not being properly closed or being mistakenly opened.
[0053] like Figure 7 As shown, the first vent knob 340 may have a first connection mode and a second connection mode. For example, the first vent knob 340 is a one-inlet and two-outlet valve.
[0054] When the first deflation knob 340 is switched to the first connection mode, the bottom chamber 311 of the first head-side airbag 310 and the bottom chamber 331 of the first tail-side airbag 330, as well as the bottom chambers 511 of the second head-side airbag 510 and the second tail-side airbag 530, are interconnected and connected to the first deflation path formed by the fluid path P2 between the third tube 450 and the first deflation knob 340 for deflation. At this time, the third tube 450 and the first cross-connection tube 460 are isolated from each other. After deflation, the height of the first head-side airbag 310, the first tail-side airbag 330, the second head-side airbag 510, and the second tail-side airbag 530 can be lowered to be flush with or lower than the lying surface 200A, thereby simultaneously releasing the blocking and protective function of the first side-protection airbag group 300 and the second side-protection airbag group 500 located on the left and right sides of the patient, and reducing the obstruction during patient transfer. When the first deflation knob 340 is switched to the first communication mode, the third tube 450 and the first cross tube 460 are isolated from each other, so the bottom air chamber 331 and the upper air chamber 332 of the first tail side airbag 330 are not interconnected, and the gas in the upper air chamber 332 will not be deflated together.
[0055] When the first deflation knob 340 is switched to the second connection mode, the bottom chamber 331 of the first tail airbag 330 is connected to the first cross-connector 460 through the third tube 450 and the first deflation knob 340. That is, the path P1 formed between the first cross-connector 460, the first deflation knob 340, and the third tube 450 is connected, allowing the bottom chamber 331 of the first tail airbag 330 to communicate with the upper chamber 332 of the first tail airbag 330, while being isolated from the first deflation path and thus not deflated. In this configuration, the bottom chamber 331 of the first tail airbag 330 can receive gas from the gas supply source (e.g., through the tube 461 connecting the bottom chamber 331) and gas from the reclining airbag assembly 200 through the replenishment tube 410. The bottom chamber 311 of the first head airbag 310 is connected to the bottom chamber 331 of the first tail airbag 330, and the bottom chamber 311 of the first head airbag 310 can also be inflated simultaneously. The bottom chamber 531 of the second tail airbag 530 is connected to the first deflation knob 340 in path P1 through the third tube 450, so the bottom chamber 531 of the second tail airbag 530 is also connected to the bottom chamber 331 of the first tail airbag 330. In addition, the bottom chamber 511 of the second head airbag 510, which is connected to the bottom chamber 531 of the second tail airbag 530, can also receive gas from the bottom chamber 331 of the first tail airbag 330 through the third tube 450. In other words, since the bottom chamber 531 of the second tail side airbag 530 and the bottom chamber 511 of the second head side airbag 510 are isolated from the upper chamber 532 of the second tail side airbag 530, the upper chamber 512 of the second head side airbag 510, and the second middle section airbag 520, and have no communication relationship, they can only receive gas from the reclining airbag assembly 200 through the first cross-connection pipe 460 and gas from the gas supply source (e.g., through the pipe 461 connecting to the bottom chamber 331) through the third pipe 450. That is, the bottom chamber 531 of the second tail side airbag 530 and the bottom chamber 511 of the second head side airbag 510 can still enjoy the effect of accelerated gas replenishment speed. At the same time, the configuration of directly supplying gas to the bottom chamber 331 through an external gas supply source can also monitor the air pressure status inside the protective structures on both sides simultaneously using only one sensor.
[0056] Please refer to the following: Figure 3In this configuration, the gas channels connecting to and using the air supply source are only five: the first pipe 420, the second pipe 430, the pipe controlling the left turning airbag 240, the pipe controlling the right turning airbag 250, and pipe 461. If a micro-leakage airbag 600 that can provide heat dissipation is added, only the micro-leakage pipe 462 connecting to the micro-leakage airbag 600 needs to be added, which only adds one channel. In other words, a total of only 6 channels are needed to achieve the full range of air mattress functions. This greatly reduces the limitations of the air supply source host that can be used with this air mattress system, which helps to reduce the overall cost of the air mattress system.
[0057] Please refer to the above as well. Figures 3 to 5 and Figure 8 , Figure 8 This is a schematic diagram of another wiring configuration of an air mattress system according to one embodiment of the present invention.
[0058] The air mattress system may include a first deflation knob 340 and a second deflation knob 540, wherein the first deflation knob 340 controls the deflation of the bottom air chambers 311 and 331 of the first edge protection airbag group 300, and the second deflation knob 540 controls the deflation of the bottom air chambers 511 and 531 of the second edge protection airbag group 500.
[0059] The second vent knob 540 has a second venting path for venting the bottom chamber 511 of the second head airbag 510 and the bottom chamber 531 of the second tail airbag 530 together. The second tail airbag 530 has a vent that communicates with the bottom chamber 531 for installing a pipeline. The second vent knob 540 can be, for example, a one-in-two-out valve, installed on the pipeline connected to the bottom chamber 531 of the second tail airbag 530. When the second vent knob 540 is switched from the closed position to the open position, the bottom chambers 511 and 531 will form a second venting path with the external environment, allowing the gas in the bottom chambers 511 and 531 to be released. On the other hand, when the second vent knob 540 is switched to the closed position, only the bottom chamber 531 of the second tail airbag 530 is connected to the upper chamber 532, without forming a second venting path.
[0060] like Figure 8As shown, the piping of the air mattress system includes a first cross-connector 460 and a second cross-connector 470. The first cross-connector 460 connects the upper air chamber 332 of the first tail side airbag 330 to the first deflation knob 340, and selectively connects to the lower air chamber 331 of the first tail side airbag 330 via the first deflation knob 340. That is, the upper air chamber 332 is connected to the lower air chamber 331, or the upper air chamber 332 is connected to the first deflation path. The second cross-connector 470 connects the upper air chamber 532 of the second tail side airbag 530 to the second deflation knob 540, and selectively connects to the lower air chamber 531 of the second tail side airbag 530 via the second deflation knob 540. That is, the upper air chamber 532 is connected to the lower air chamber 531, or the upper air chamber 532 is connected to the second deflation path.
[0061] The first deflation knob 340 has a first connection mode and a second connection mode. When the first deflation knob 340 is switched to the first connection mode, the bottom air chamber 311 of the first head-side airbag 310 is connected to the bottom air chamber 331 of the first tail-side airbag 330 via the first deflation path for deflation, and is isolated from the upper air chamber 312 of the first head-side airbag 310, the upper air chamber 332 of the first tail-side airbag 330, and the first mid-section airbag 320. At this time, only the height of the first head-side airbag 310 and the first tail-side airbag 330 of the first edge-protecting airbag group 300 is reduced, allowing the patient to be transferred or get out of bed from the side of the first edge-protecting airbag group 300.
[0062] When the first deflation knob 340 is switched to the second connection mode (and the second deflation knob 540 is switched to the fourth connection mode), the bottom air chamber 331 of the first tail side airbag 330 is connected to the upper air chamber 332 of the first tail side airbag 330 through the first cross-connector 460, and is isolated from the first deflation path. Furthermore, the bottom air chamber 331 of the first tail side airbag 330 receives gas from a gas supply source (e.g., through the pipe 461 connecting the bottom air chamber 331) and gas from the reclining airbag assembly 200 through the replenishment pipe 410. Since the bottom air chamber 331 of the first tail side airbag 330 and the bottom air chamber 311 of the first head side airbag 310 are interconnected, the bottom air chamber 311 of the first head side airbag 310 can also be replenished with gas, thereby restoring the height of the first head side airbag 310 and the first tail side airbag 330 of the first edge protection airbag assembly 300 to a state higher than the reclining surface 200A.
[0063] The second deflation knob 540 has a third connection mode and a fourth connection mode. When the second deflation knob 540 is switched to the third connection mode, the bottom air chamber 511 of the second head-side airbag 510 and the bottom air chamber 531 of the second tail-side airbag 530 are connected to the second deflation path for deflation, and are isolated from the upper air chamber 512 of the second head-side airbag 510. At this time, only the height of the first head-side airbag 510 and the first tail-side airbag 530 of the second edge-protecting airbag group 500 is reduced, so that the patient can be transferred or get out of bed from the side of the second edge-protecting airbag group 500.
[0064] When the second deflation knob 540 is switched to the fourth connection mode (and the first deflation knob 340 is switched to the second connection mode), the bottom chamber 531 of the second tail side airbag 530 is connected to the upper chamber 532 of the second tail side airbag 530 through the second cross-connector 470. The bottom chamber 531 of the second tail side airbag 530 receives gas from the lying airbag assembly 200 and gas from the gas supply source (referring to the gas supplied to the bottom chamber 311 through the pipe 461 connecting the bottom chamber 331) through the gas replenishment pipe 410. Since the bottom chamber 531 of the second tail side airbag 530 and the bottom chamber 511 of the second head side airbag 510 are connected to each other, the bottom chamber 511 of the second head side airbag 510 can also be replenished with gas, thereby restoring the height of the second head side airbag 510 and the second tail side airbag 530 of the second side airbag assembly 500 to a state higher than the lying surface 200A.
[0065] In this configuration, the bottom air chamber 331 of the first tail side airbag 330 can be selectively connected to the upper air chamber 332 of the first tail side airbag 330 via the first cross-connector 460 and the first deflation knob 340. The bottom air chamber 531 of the second tail side airbag 530 can be selectively connected to the upper air chamber 532 of the second tail side airbag 530 via the second cross-connector 470 and the second deflation knob 540. This allows the bottom air chambers 331 and 531 to simultaneously receive gas from the lying airbag group 200 and the air supply source when they need to be inflated to restore their height, thereby accelerating the time it takes for the air mattress to return to a suitable lying position for the patient. Furthermore, in this configuration, only 5 gas channels are needed to connect to and use the air supply source. If a micro-leakage tube 462 is added, only 1 more channel needs to be added. In other words, a total of only 6 channels are needed to achieve the full range of air mattress functions. This reduces the limitations of the air supply source host that can be used with this air mattress system, which helps to reduce the overall cost of the air mattress system.
[0066] Please refer to the above as well. Figures 3 to 5 , Figure 9 , Figure 9 This is a schematic diagram of another wiring configuration of an air mattress system according to an embodiment of the present invention.
[0067] The air mattress system may include a first deflation knob 340 and a second deflation knob 540, wherein either the first deflation knob 340 or the second deflation knob 540 can control the deflation of the bottom air chambers 311, 331 of the first edge protection airbag assembly 300 and the bottom air chambers 511, 531 of the second edge protection airbag assembly 500. The details of the first deflation knob 340 and the second deflation knob 540 and their respective connections to the corresponding bottom air chambers 311 or 511 are generally the same as described in the foregoing embodiments.
[0068] like Figure 9 As shown, the piping of the air mattress system includes a third pipe 450, a first one-way connecting pipe 480 (with a one-way valve 481) and a second one-way connecting pipe 490 (with a one-way valve 491).
[0069] The third tube 450 connects the bottom air chamber 531 of the second tail airbag 530, the bottom air chamber 331 of the first tail airbag 330, the second deflation knob 540, and the first deflation knob 340. The first one-way connecting tube 480 connects the upper air chamber 332 of the first tail airbag 330 to the first deflation knob 340, and selectively connects to the bottom air chamber 331 of the first tail airbag 330 through the first deflation knob 340, allowing only the gas in the bottom air chamber 331 of the first tail airbag 330 to flow unidirectionally to the upper air chamber 332. The second one-way connecting pipe 490 connects the upper air chamber 532 of the second tail side airbag 530 to the second deflation knob 540, and selectively connects to the bottom air chamber 531 of the second tail side airbag through the second deflation knob 540, and only allows the gas in the bottom air chamber 532 of the second tail side airbag 530 to flow unidirectionally to the upper air chamber 531.
[0070] The first deflation knob 340 has a first connection mode and a second connection mode. When the first deflation knob 340 is switched to the first connection mode, the bottom air chamber 311 of the first head airbag 310 and the bottom air chamber 331 of the first tail airbag 330 are connected to the first deflation path for deflation. Simultaneously, even if the second deflation knob 540 is switched to the fourth connection mode (not connected to the second deflation path), the bottom air chambers 511 of the second head airbag 510 and the bottom air chambers 531 of the second tail airbag 530 are still connected to the first deflation path through the third tube 450 for deflation. This allows the operator to directly operate the deflation mechanism to open or close the deflation, regardless of whether they are located on the left or right side of the air mattress, without having to move to the side where deflation is needed. Furthermore, since the third tube 450 connects the bottom air chamber 531 of the second tail side airbag 530 with the bottom air chamber 331 of the first tail side airbag 330, the air pressure inside the protective structures on both sides can be monitored simultaneously using only one sensor (e.g., configured on the channel connecting the air supply host and the tube 461).
[0071] When the first venting knob 340 is switched to the second connection mode, the bottom air chamber 331 of the first tail side airbag 330 is unidirectionally connected to the upper air chamber 332 of the first tail side airbag 330 through the first one-way connecting pipe 480, and is isolated from the first venting path. The bottom air chamber 331 of the first tail side airbag 330 receives gas from the gas supply source (e.g., through the pipe 461 connecting the bottom air chamber 331).
[0072] The second vent knob 540 has a third connection mode and a fourth connection mode. When the second vent knob 540 is switched to the third connection mode, the bottom air chamber 511 of the second head airbag 510 and the bottom air chamber 531 of the second tail airbag 530 are connected to the second venting path for venting. Simultaneously, even if the first vent knob 340 is switched to the second connection mode (not connected to the first venting path), the bottom air chambers 311 of the first head airbag 310 and 331 of the first tail airbag 330 are still connected to the second venting path through the third tube 450 for venting. This allows the operator to directly operate the venting mechanism to open or close the venting regardless of whether they are located on the left or right side of the air mattress, without having to move to the side where venting is needed.
[0073] When the second venting knob 540 is switched to the fourth connection mode, the bottom air chamber 531 of the second tail airbag 530 is unidirectionally connected to the upper air chamber 532 of the second tail airbag 530 through the second one-way connecting pipe 490, and is isolated from the second venting path. The bottom air chamber 531 of the second tail airbag 530 receives gas from the gas supply source through the third pipe 450 (e.g., through the pipe 461 connecting the bottom air chamber 331).
[0074] In this configuration, operating either the first deflation knob 340 or the second deflation knob 540 can control the deflation of the bottom air chambers 311 and 331 of the first edge protection airbag group 300 and the bottom air chambers 511 and 531 of the second edge protection airbag group 500, simplifying the operation steps and making it more convenient for caregivers or nurses.
[0075] The air mattress system of this invention, while providing side protection, features a design where the first middle section of the first side airbag assembly is approximately flush with or lower than the lying surface. This allows drainage tubes to be laid flat, preventing backflow or obstruction of fluid flow. Simultaneously, the bottom chambers of the first head and tail airbags in the first side airbag assembly can be controlled to deflate, thereby reducing their height and preventing obstruction of the transfer path when the patient needs to be moved. Furthermore, the method of controlling the deflation of the bottom chambers of the first head and tail airbags via a first deflation knob is intuitive, quick, and convenient, thus improving the user experience and enhancing the quality of medical or long-term care.
[0076] Preferred embodiments of the present invention have been disclosed above. However, those skilled in the art should understand that the embodiments described herein are for illustrative purposes only and should not be construed as limiting the scope of the invention. It should be noted that all equivalent variations and substitutions to the embodiments should be understood to be covered within the scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of the claims. [Attached image labels]
[0077] 90 outer cover 100 base cover 100A Bottom 200 Reclining Airbag Set 200A Reclining Surface 210 Head area airbag 220 First Alternating Airbag 230 Second Alternating Airbag 240 Left-side turning airbag 250 Right Rollover Airbag 300 First Edge Protection Airbag Group 310 First head side airbag The top of the first head side airbag of the 310A 311 The bottom air chamber of the first head side airbag 312 Upper air chamber of the first head side airbag 320 First and middle airbags 330 First rear side airbag Top of the first rear side airbag of the 330A 331 The bottom air chamber of the first tail side airbag 332 Upper air chamber of the first tail side airbag 340 First vent knob 410 Intake Air Tube 420 First tube 430 Second tube 440 Check Valve Assembly 450 Third tube 460 First Cross-Border Takeover 461 tubes 462 Micro-leakage tube 470 Second Span Takeover 480 First one-way connecting pipe 481 Check Valve 490 Second unidirectional connecting pipe 491 Check Valve 500 Second Edge Protection Airbag Set 510 Second head side airbag The top of the second head side airbag in the 510A 511 The bottom air chamber of the second head side airbag 512 Upper air chamber of the second head side airbag 520 Second Mid-Chapter Airbag 530 Second rear side airbag Top of the second rear side airbag of the 530A 531 The bottom air chamber of the second tail side airbag 532 Upper air chamber of the second tail side airbag 540 Second vent knob 600 micro-leakage airbags P1 path P2 path
Claims
1. An air mattress system with alternating and turning functions, for connecting to an external air supply source, comprising: A bottom cover, having a bottom surface; A reclining airbag assembly, disposed on the bottom surface, the reclining airbag assembly comprising a plurality of airbags, collectively defining a reclining surface for the patient to lie on; and A first edge protection airbag assembly is disposed on the bottom surface and located on one side of the lying airbag assembly. The first edge protection airbag assembly includes a first head side airbag, a first mid-section airbag, and a first tail side airbag. The first mid-section airbag is positioned between the first head side airbag and the first tail side airbag, and its height is substantially no greater than the distance between the lying surface and the bottom surface. The first head side airbag and the first tail side airbag each have a bottom air chamber close to the bottom surface and directly connected to each other. The bottom chamber of the first head airbag and the bottom chamber of the first tail airbag are configured to be controlled so that, after deflation, the tops of the first head airbag and the first tail airbag are substantially lowered to the vicinity of the lying surface.
2. The air mattress system as described in claim 1, wherein, It further includes a first deflation knob having a first deflation path for deflation of the bottom chamber of the first head airbag and the bottom chamber of the first tail airbag together.
3. The air mattress system as described in claim 2, wherein, The first head-side airbag and the first tail-side airbag each have an upper airbag located above the bottom airbag.
4. The air mattress system as described in claim 3, wherein, The upper air chambers of the first mid-section airbag and the first head-side airbag are connected in series with and communicate with the upper air chambers of the first tail-side airbag.
5. The air mattress system as described in claim 4, wherein, The recumbent airbag assembly includes a plurality of head area airbags, a plurality of first alternating airbags, and a plurality of second alternating airbags, the first alternating airbags and the second alternating airbags being arranged alternately. The head area airbags are connected to the upper air chamber of the first head side airbags via an air supply tube, wherein the upper air chamber of the first head side airbags is used to receive gas from the recumbent airbag assembly through the air supply tube.
6. The air mattress system as described in claim 5, wherein, The first alternating airbag is connected to a first tube for inflation / deflation control, and the second alternating airbag is connected to a second tube for inflation / deflation control. Each of the head area airbags is connected to the first tube and the second tube respectively through a one-way valve assembly to receive gas from the first alternating airbag and the second alternating airbag.
7. The air mattress system as claimed in claim 6, wherein, Further includes: A second edge protection airbag assembly is disposed on the bottom surface and located on the other side of the lying airbag assembly. The second edge protection airbag assembly includes a second head side airbag, a second middle section airbag, and a second tail side airbag. The second middle section airbag is positioned between the second head side airbag and the second tail side airbag, and its height is substantially no greater than the distance between the lying surface and the bottom surface. The second head side airbag and the second tail side airbag each have a bottom air chamber near the bottom surface and an upper air chamber located above the bottom air chamber. The bottom air chambers of the second head side airbag and the second tail side airbag are directly connected to each other. The bottom chambers of the second head-side airbag and the second tail-side airbag are configured to be controlled so that, upon deflation, the tops of the second head-side airbag and the second tail-side airbag are substantially lowered to the vicinity of the lying surface. The upper air chamber of the second head-side airbag is connected to the air supply tube.
8. The air mattress system as claimed in claim 7, wherein, The upper air chambers of the second mid-section airbag and the second head-side airbag are connected in series with and communicate with the upper air chambers of the second tail-side airbag.
9. The air mattress system as claimed in claim 8, wherein, Further includes: A third tube connects the bottom chamber of the second tail airbag, the bottom chamber of the first tail airbag, and the first deflation knob; and A first cross-connector connects the upper air chamber of the first tail airbag to the first deflation knob, and selectively connects to the lower air chamber of the first tail airbag via the first deflation knob. The first venting knob has a first connection mode and a second connection mode. When the first venting knob is switched to the first connection mode, the bottom air chamber of the first head airbag and the bottom air chamber of the first tail airbag, as well as the bottom air chamber of the second head airbag and the bottom air chamber of the second tail airbag, are connected together through the first venting path and thus vented. When the first deflation knob is switched to the second communication mode, the bottom air chamber of the first tail airbag is connected to the upper air chamber of the first tail airbag through the first cross-connector. The bottom air chamber of the first tail airbag receives gas from the gas supply source and gas from the reclining airbag assembly through the replenishment pipe.
10. The air mattress system of claim 8, wherein, It further includes a second venting knob having a second venting path for venting the bottom chamber of the second head airbag together with the bottom chamber of the second tail airbag.
11. The air mattress system of claim 10, wherein, Further includes: A first cross-connector connects the upper air chamber of the first tail airbag to the first deflation knob, and selectively connects to the lower air chamber of the first tail airbag via the first deflation knob; and A second cross-connector connects the upper air chamber of the second tail airbag to the second deflation knob, and selectively connects to the lower air chamber of the second tail airbag via the second deflation knob. The air supply tube is further connected to the upper air chamber of the second head-side airbag, so that the upper air chamber of the second head-side airbag receives gas from the reclining airbag assembly through the air supply tube. The first venting knob has a first connection mode and a second connection mode. When the first venting knob is switched to the first connection mode, the bottom air chamber of the first head airbag is connected to the bottom air chamber of the first tail airbag via the first venting path for venting, and is isolated from the upper air chamber of the first head airbag. When the first deflation knob is switched to the second communication mode, the bottom air chamber of the first tail airbag is connected to the upper air chamber of the first tail airbag through the first cross-connector. The bottom air chamber of the first tail airbag receives gas from the gas supply source and gas from the reclining airbag assembly through the replenishment tube. The second venting knob has a third connection mode and a fourth connection mode. When the second venting knob is switched to the third connection mode, the bottom air chamber of the second head airbag and the bottom air chamber of the second tail airbag are connected to the second venting path for venting, and are isolated from the upper air chamber of the second head airbag. When the second deflation knob is switched to the fourth communication mode, the bottom air chamber of the second tail airbag is connected to the upper air chamber of the second tail airbag through the second cross-connector, and the bottom air chamber of the second tail airbag receives gas from the lying airbag assembly and the air supply source through the air replenishment tube.
12. The air mattress system of claim 10, wherein, Further includes: A third tube connects the bottom air chamber of the second tail side airbag, the bottom air chamber of the first tail side airbag, the second deflation knob, and the first deflation knob. A first one-way connecting tube connects the upper air chamber of the first tail-side airbag to the first deflation knob, and selectively connects to the lower air chamber of the first tail-side airbag via the first deflation knob, allowing only unidirectional flow of gas from the lower air chamber of the first tail-side airbag to the upper air chamber; and A second one-way connecting tube connects the upper air chamber of the second tail side airbag to the second deflation knob, and selectively connects to the bottom air chamber of the second tail side airbag through the second deflation knob, and only allows the gas in the bottom air chamber of the second tail side airbag to flow unidirectionally to the upper air chamber. The first venting knob has a first connection mode and a second connection mode. When the first venting knob is switched to the first connection mode, the bottom air chamber of the first head airbag and the bottom air chamber of the first tail airbag are connected to the first venting path for venting. At the same time, the bottom air chambers of the second head airbag and the bottom air chambers of the second tail airbag are also connected to the first venting path for venting. When the first venting knob is switched to the second communication mode, the bottom air chamber of the first tail airbag is unidirectionally connected to the upper air chamber of the first tail airbag through the first one-way communication pipe, and the bottom air chamber of the first tail airbag receives gas from the gas supply source. The second deflation knob has a third connection mode and a fourth connection mode. When the second deflation knob is switched to the third connection mode, the bottom air chamber of the second head airbag and the bottom air chamber of the second tail airbag are connected to the second deflation path for deflation. At the same time, the bottom air chambers of the first head airbag and the bottom air chambers of the first tail airbag are also connected to the second deflation path for deflation. When the second venting knob is switched to the fourth communication mode, the bottom air chamber of the second tail airbag is unidirectionally connected to the upper air chamber of the second tail airbag through the second one-way communication pipe, and the bottom air chamber of the second tail airbag receives gas from the gas supply source through the third pipe.