A side-lying support backpack that allows the user to turn over.

Abstract

A side-lying support backpack (1) that can be turned over includes a symmetrical sheet-like back panel (2), an abdominal strap (7) connected to the back panel (2), optional shoulder straps (5) connected to the back panel (2), optional pull straps (6) connected to the back panel (2) or the abdominal strap (7), optional leg straps (8) connected to the back panel (2), an openable and lockable main pocket (3) located on the back panel (2) for storing tangible objects, and a main airbag (9) of the main pocket (3); the backpack (1) also has a secondary pocket (4) connected to the main pocket (3).

Description

Technical Field

[0001] This invention relates to a side-lying support backpack that allows for turning over, used to assist individuals with obstructive sleep apnea and / or snoring during sleep, as well as pregnant women, in avoiding supine sleeping positions. Background Technology

[0002] The impact of sleep posture on obstructive sleep apnea and snoring is well-known. When sleeping on their backs, some tissues in the upper respiratory tract, particularly the throat, are located above the airway and are in a relaxed state. Under the influence of gravity, these tissues collapse towards the airway, increasing respiratory resistance. If these tissues become enlarged or hyperplastic, airway obstruction will worsen. When sleeping on their sides, the direction of gravity on these tissues points to one side of the body, preventing them from compressing the airway and reducing the chance of breathing obstruction. Studies have shown that sleep apnea and snoring are at least twice as likely to occur when sleeping on one's back as when sleeping on one's side. For many people, avoiding the supine sleeping position can reduce or even prevent sleep apnea and / or snoring.

[0003] A pregnant woman's sleeping posture is closely related to the health of both mother and child. In late pregnancy, the uterus gradually enlarges. When lying on your back, the uterus may compress the kidneys, reducing renal blood flow and decreasing the glomerular filtration rate, thus affecting the health of both the mother and fetus. Furthermore, the enlarged uterus when lying on your back may also compress the inferior vena cava, obstructing blood return and causing lower limb edema and varicose veins. Simultaneously, the reduced blood return to the heart leads to decreased blood supply throughout the body, causing symptoms such as chest tightness, nausea, vomiting, and a drop in blood pressure, medically termed "supine hypotensive syndrome." It is generally emphasized that prolonged lying on your back is not advisable after the sixth month of pregnancy.

[0004] Current technologies offer limited and highly restrictive options for avoiding supine sleeping. Some patients have resorted to sewing tennis balls, golf balls, or other objects into the back of their pajamas to create a protrusion, hoping the pressure from the protrusion will help them shift out of a supine position. However, this technique has several limitations: First, the protrusion easily shifts with the clothing, deviating from its central position on the back. Second, the user cannot adjust the side-lying angle. Third, the protrusion is often too small to achieve the necessary side-lying angle. Especially with soft mattresses, the protrusion may become embedded in the bed and malfunction. Fourth, the localized pressure from the protrusion could potentially cause back or spinal injury.

[0005] US20120167895A1 describes a strap to prevent supine sleeping, similar to WO2007130931A1 and WO2016176632A1. This technology includes a strap that wraps around the torso and a protrusion fixed to the strap at the center of the back, which disrupts the stable balance of supine sleeping. The limitations of this technology are: First, if the protrusion is small, it is difficult to achieve the necessary side-lying angle. Especially with a soft mattress, the protrusion may sink into the bed and become ineffective. If the protrusion is large, it is difficult for the user to turn over. Second, the user cannot adjust the side-lying angle. Third, because the strap is fixed around the torso, it is easy for it to rotate around the torso, causing the protrusion to deviate from the center of the back. Fourth, the restraint is concentrated on one strap, which can easily cause discomfort. This is especially true if the strap wraps around the chest, causing discomfort for female users.

[0006] EP3117805A1 discloses a wearable side-lying assistive device. This device attaches a lumbar support pillow to the lower back of a vest, using the pillow to prevent the user from turning from a side-lying position to a supine position. Its limitations are: First, if the lumbar support pillow is too large, the user will find it difficult to turn over. If the pillow is too small, the necessary side-lying angle cannot be achieved. Second, the user cannot adjust the side-lying angle. Third, it is difficult to balance stability and comfort; if the vest is thick, it is not comfortable enough; if the vest is thin, the pillow is prone to shifting with the vest. Fourth, the vest has poor adaptability to different body types.

[0007] DE202014003665U1 discloses a backpack designed to prevent supine positioning, representing a relatively advanced technological solution. This backpack consists of a bag located in the middle of the back and shoulder straps and a waist strap for fixation. Three-point fixation at the waist and shoulders prevents the backpack from rotating along the torso and effectively distributes restraint forces. Through the filling material, the backpack maintains the necessary volume and strength, thus completely preventing supine positioning and providing a good side-lying angle. Its limitations are: First, if the backpack is too large, the user will find it difficult to turn over; if the backpack is too small, the necessary side-lying angle cannot be achieved. Second, because the backpack size is not adjustable, the user cannot adjust the side-lying angle. If the side-lying angle is changed by adjusting the size of the filling material, a mismatch between the backpack and the filling material may occur. Third, the use of only shoulder fixation is not versatile enough. Most users lean against the backpack when lying on their side, causing the shoulder straps located on the lower side of the body to tighten on the lower shoulder, resulting in discomfort. Fourth, using elastic bands and adjustment straps to improve size adaptability results in a complex structure and a limited adjustment range. Summary of the Invention

[0008] This invention provides a reversible backpack designed to prevent individuals with obstructive sleep apnea and / or snoring, as well as pregnant women, from sleeping in a supine position. Through a secondary pocket structure, the backpack's height can be converted into width and / or length, allowing the user to turn over during sleep and ensuring comfort. Adjusting the size of the secondary pocket indirectly controls the backpack's minimum bulge height to accommodate different users. The main backpack pocket is also adjustable, completely preventing supine sleeping and allowing the user to achieve different angles of side sleeping. This invention also provides multiple reliable fastening methods, allowing users to choose the most secure and comfortable one. Furthermore, components such as the shoulder straps, pull straps, abdominal belt, and back panel utilize adhesive Velcro material combined with fold-back fastening technology, enhancing adaptability to different body types. In summary, this invention largely avoids the shortcomings of existing technologies, providing a more practical and comfortable side-sleeping assistance technology.

[0009] To achieve the above objectives, the present invention provides a side-lying support backpack that allows the user to turn over, comprising: 1. A back panel, which is a bilaterally symmetrical sheet. Preferably, the back panel is bilaterally symmetrical about the spine when worn. The back panel is connected to an abdominal strap for securing the waist and abdomen. When worn, the abdominal strap wraps around the torso between the chest and abdomen. Optionally, the back panel is connected to shoulder straps, typically two, for securing the backpack to the upper torso. Optionally, the back panel is connected to leg straps, typically one or two, for securing the backpack to the hips and / or legs. Optionally, the back panel or abdominal strap is also connected to drawstrings, typically two to four, which connect and cooperate with the shoulder straps and / or leg straps to secure the backpack to the torso. In a particular embodiment, the back panel may be reduced in size and integrated into a main compartment as described below.

[0010] 2. One or more openable and lockable pockets (hereinafter referred to as "main pockets") located on the back panel. Preferably, the main pockets are positioned on the back and / or hips, perpendicular to the spine. The main pockets are preferably made of a non-elastic material to prevent rotation along the torso during use. The main pockets can hold one or more tangible objects as padding. The padding, in whole or in part, can be an elastomer. Preferably, the padding is an inflatable airbag (hereinafter referred to as "main airbag"). Generally, the overall size and shape of the padding in the main pocket are substantially the same as the size and shape of the main pocket to prevent the padding from failing to fit into the main pocket or from shifting within the main pocket. With the padding in place, the main pocket protruding from the back can prevent the user from changing from a side-lying to a supine position. By adjusting the size and / or shape of the main pockets and the padding, a more ideal side-lying angle can be provided for the user. For easier adjustment of the side-lying angle, an adjustment piece can be provided on the main pocket to adjust its size and / or shape, and the padding can be adjusted accordingly. When the filler is the preferred main air bladder, the changes in the main bag can be matched by inflation and deflation.

[0011] 3. One or more pockets connected to the main compartment (hereinafter referred to as "sub-pockets"). The sub-pockets are preferably located near the back panel. In a side-lying position, the filling material does not fill the sub-pockets. When the user rolls over from a side-lying to a supine position, the pressure on the filling material increases, causing elastic deformation, and a portion of it begins to fill the sub-pockets. At this time, the height of the filling material gradually translates into its width and / or length, causing the bulge height of the main compartment to decrease, becoming flattened. Upon reaching the supine position, the pressure on the filling material is at its maximum, the sub-pockets are full, and the main compartment is at its minimum bulge height, allowing the user to overcome the obstruction of the backpack and roll to the other side. After reaching the other side, the pressure on the filling material decreases, gradually restoring its original shape, and the side-lying angle gradually increases until an ideal angle and stable balance are achieved.

[0012] To accommodate different users, an adjustment piece can be set on the secondary pocket to adjust its size, thereby controlling the minimum bulge height of the main pocket under pressure. This allows the user to overcome this obstacle and complete the rollover, while also preventing the user from achieving a stable balance in a supine position during the rollover process, forcing them to continue rolling to a side-lying position.

[0013] As an improvement, when the main airbag is filled with air, an elastic airbag (hereinafter referred to as the "secondary airbag") is connected to the main airbag at the junction of the main bag and the secondary bag. When lying on one's side, the secondary airbag is in a contracted state. When the user turns over, the main airbag is compressed, causing air to enter the secondary airbag. The secondary airbag inflates within the secondary bag, flattening both the main bag and the main airbag. When the secondary airbag is fully filled, the main bag is at its flattest. As a further improvement, a connecting valve can be installed at the junction of the main airbag and the secondary airbag, allowing the secondary airbag to be detached and replaced to adapt to different usage needs.

[0014] As a further improvement, when the main bag is located at the waist and hips, the connection between the main bag and the secondary bag, as well as the connection between the main air bladder and the secondary air bladder, can bend from back to front through the groin to the front of the body, placing the secondary bag and secondary air bladder at the front of the body. When the main bag is compressed, the gas in the main air bladder enters the secondary air bladder, causing the secondary air bladder to inflate at the front of the body. Its advantages are that the secondary air bladder is not compressed during turning over, has a large expansion range, and allows for a wide range of adjustment in the height of the main bag's inflation.

[0015] 4. The two shoulder straps are connected to the back panel by sewing or connectors, and the shoulder straps can be equipped with length adjustment devices. When the two shoulder straps wrap around the shoulders, double-shoulder fixation is achieved. When the two shoulder straps cross in front of the chest (each shoulder strap passes through one shoulder and across the chest to the opposite waist and abdomen), chest-cross fixation is achieved. As an improvement, two pull straps connected to the back panel or abdominal band can be provided, and these pull straps can be connected to the shoulder straps via connectors. When the shoulder straps are connected to the pull straps on opposite sides of the body in front of the body, chest-cross fixation is achieved. When the shoulder straps are connected to the pull straps on the same side of the body in front of the body, double-shoulder fixation is achieved. As a further improvement, each of the two shoulder straps has a loop at the front. The front of the two pull straps has a first Velcro fastener, and the middle section has a second Velcro fastener; the pull straps are made of Velcro-adhesive material. When the two pull straps pass through the loops of the opposite shoulder straps in front of the body and then fold back, securing themselves with the first Velcro fastener, chest-cross fixation is achieved. After the two straps pass through the loops of the shoulder straps on the same side of the body and fold back, they are secured with a second Velcro fastener, achieving double-shoulder fixation. This design provides users with two reliable fixation methods. The connection point between the straps and shoulder straps can be easily positioned on the front of the body for easy fastening and adjustment. The Velcro fasteners on the straps can be attached anywhere between the shoulder and waist, and their adjustable length accommodates users of all body types, eliminating the need for additional elastic bands, extension straps, or adjustment clips. Finally, the loops on the shoulder straps better lock the position of the shoulder straps and straps, and the Velcro fasteners are more secure after folding back.

[0016] 5. One end of the leg strap is connected to the back panel via sewing or a connector, and a length adjustment device can be provided on the leg strap. When the backpack has one leg strap, the other end of the leg strap goes from back to front, passes through the crotch, and wraps around the front of the body to connect with the abdominal strap. When the backpack has two leg straps, the other end of the leg strap goes from back to front, passes through the crotch, wraps around the upper thigh, and connects with the back panel or abdominal strap. When two leg straps are provided, if the other end of each leg strap is connected to the back panel or abdominal strap on the opposite side of the body, a cross-legged fixation can be achieved; if connected to the back panel or abdominal strap on the same side of the body, a wrap-around fixation can be achieved. As an improvement, a pull strap connected to the back panel or abdominal strap can be provided, which can be connected to the leg strap via a connector. In the case of two leg straps and two pull straps, when the leg straps pass through the crotch from back to front and are connected to the pull straps on the opposite side of the body, a cross-legged fixation can be achieved; if the leg straps are connected to the pull straps on the same side of the body, a wrap-around fixation can be achieved.

[0017] 6. The abdominal binder is connected to the back panel by sewing or a connector. As an improvement, two abdominal binders can be provided, the entire binder being made of a Velcro-adhesive material. One end of each abdominal binder is connected to the back panel, and the other end is connected to the front of the body via Velcro. As a further improvement, the front section of one abdominal binder has a loop through which the other abdominal binder passes from bottom to top, folds back, and is attached to its own surface with Velcro. Attached Figure Description

[0018] Figure 1 This is a front view of the backpack in the first embodiment of the present invention.

[0019] Figure 2 This is a view of the back of the backpack in the first embodiment of the present invention.

[0020] Figure 3 This is a perspective view of the side of the backpack according to the first embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of a backpack-assisted side-lying posture according to the first embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the backpack fixing method according to the first embodiment of the present invention.

[0023] Figure 6 The image shows the changes in the main airbag of the backpack in the first embodiment of the present invention during the flipping process.

[0024] Figure 7 This is a schematic diagram of the backpack in different flipping states according to the first embodiment of the present invention.

[0025] Figure 8 The backpack of the second embodiment of the present invention shows the changes of its main and auxiliary airbags during the turning process.

[0026] Figure 9 This is a schematic diagram of the main and auxiliary airbag connection valves of the backpack according to the second embodiment of the present invention.

[0027] Figure 10 The backpack of the third embodiment of the present invention shows the changes of its main airbag during the flipping process.

[0028] Figure 11 This is a front view of the backpack according to the fourth embodiment of the present invention.

[0029] Figure 12 This is a schematic diagram of the backpack fixing method according to the fourth embodiment of the present invention.

[0030] Figure label: 1. Backpack 2. Back panel 3. Main bag 4. Secondary bag 5. Shoulder straps 6. Drawstrings 7. Abdominal binder 8. Leg binder 9. Main airbag 10. Ring 11. First Velcro 12. Second Velcro 13. Velcro 14. Velcro 15. Air valve 16. Zipper 17. Adjust the zipper. 18. Adjust the zipper. 19. Secondary airbag 20. Connecting valve 21. Minimum protrusion height; 22. Valve frame 23. Valve core 24. Connecting part Detailed Implementation

[0031] The present invention will now be further described with reference to the accompanying drawings.

[0032] The backpack of this invention can be easily manufactured using known materials without requiring significant technical effort.

[0033] The term "backpack" as used in this invention refers to a bag with one or more closed straps that can be fixed to the torso of a human body, and which has one or more bodies located at the back of the body and can hold tangible objects.

[0034] The term "backplate" as used in this invention refers to a symmetrical sheet that is worn on the back and / or buttocks.

[0035] The terms "main bag" and "secondary bag" used in this invention refer to bags that can hold tangible objects. In addition to the case where the bag itself can hold tangible objects, it also includes the case where the bag, together with the back panel described in this invention, forms a sac-like structure to hold tangible objects.

[0036] The term "strap" as used in this invention refers to a single strap or a set of straps, one end of which is connected to the back panel or belly strap, and the other end of which is connected to the shoulder straps or leg straps, for securing the backpack to the human torso.

[0037] The term "Velcro" as used in this invention originally refers to two straps used in pairs, one with a hook-like structure on its surface and the other with a loop-like structure on its surface, which can be glued (hooked) together face to face. In this context, due to technological advancements, backpacks can use special surface materials that can replace one strap in a traditional "Velcro" strap when glued (hooked) to the other. Therefore, in this context, "Velcro" refers both to a traditional pair of straps and to a single strap that can be glued to a backpack.

[0038] The term "lateral lying angle" as used in this invention refers to the angle between the back of the person lying on their side and the bed surface, ranging from 0 degrees to 180 degrees. The closer the sleeping position is to supine, the closer the lateral lying angle is to 0 degrees; the closer the sleeping position is to prone, the closer the lateral lying angle is to 180 degrees. The ideal lateral lying angle is around 90 degrees.

[0039] Embodiments of the present invention are shown in the accompanying drawings, and are described in detail below.

[0040] Figure 1 , 2 3, 4, 5, 6, and 7 represent the first embodiment of the present invention. The backpack 1 includes a back panel 2, which is a sheet-like material symmetrically placed on the back with the spine as the center line. The back panel 2 serves to connect the shoulder straps 5, pull straps 6, and abdominal straps 7, while also securing the main pocket 3 to prevent displacement and rotation, and distributing the support force of the main pocket 3 and the main airbag 9 on the back. The back panel 2 can have a multi-layered structure; the side closest to the back can be made of a skin-friendly material, and the interlayer can include elastic cushioning material to enhance comfort, and may also include a harder and more resilient sheet-like shaping material to prevent deformation of the backpack 1.

[0041] Two shoulder straps 5 are connected to the upper sides of the back panel 2, with loops 10 at the front. Two pull straps 6 are connected to the lower middle sides of the back panel 2, with a first Velcro 11 at the front and a second Velcro 12 in the middle. The entire pull strap 6 is made of Velcro-adhesive material. When wearing the backpack, one pull strap 6 is passed through the loop of one shoulder strap 5 and folded back, then secured to the surface of the pull strap 6 with Velcro 11 and / or 12 to fix the backpack 1 to the upper part of the torso. The first Velcro 11 is used for cross-chest fixation. Figure 5 -A), the second Velcro strap 12 is used for shoulder fastening ( Figure 5 -B), the specific method is in Figure 5 The details are as follows.

[0042] Two abdominal straps 7 are connected to the lower sides of the back panel 2. The abdominal straps 7 are equipped with Velcro 13, and the entire abdominal strap 7 is made of Velcro-adhesive material. When wearing, the Velcro 13 is attached to the surface of the other abdominal strap 7, so that the two abdominal straps 7 are connected in front of the body.

[0043] The back panel 2 has an openable and closable main pocket 3 in the middle. Figure 1 The main pocket 3 is open. Figure 3 (When the main compartment is closed), the opening, closing, and locking device on the main compartment 3 is a head-to-feet zipper 16, through which the filling material of the main compartment 3 can be inserted. The filling material of the main compartment 3 is the main airbag 9. The main airbag 9 is equipped with an air nozzle 15, which can close and open the main airbag 9 to achieve inflation and deflation. The size and shape of the inflated main airbag 9 are roughly the same as those of the main compartment 3. Using an airbag as filling material makes it easy to carry, and the side-lying angle can be adjusted by inflating and deflating it. Its easy deformation can also be used to achieve rolling over.

[0044] In this embodiment, the lateral positioning angle can be adjusted by controlling the fullness of the main airbag 9. Simultaneously, an adjustable zipper 17 is provided on the main bag 3 to match the main bag 3 with different fullness levels of the main airbag 9. The left and right halves of the adjustable zipper 17 are fixed to the outer surface of the main bag 3 and maintain a certain distance. By opening and closing the zipper 17, the surface area of ​​the main bag 3 can be adjusted, thereby adjusting the size and / or shape of the main bag 3.

[0045] Below the main pocket 3 is a connected secondary pocket 4, with a connecting part 24 at the junction of the main pocket 3 and the secondary pocket 4. The secondary pocket 4 provides a turning function for the backpack 1, the specific process of which is described in... Figure 6 and Figure 7 The details are as follows. The secondary pocket 4 is equipped with an adjustable zipper 18 to adjust its size. Both halves of the adjustable zipper 18 are fixed to the outer surface of the secondary pocket 4 and maintained at a certain distance. By opening and closing the zipper 18, the surface area of ​​the secondary pocket 4 can be adjusted, thereby adjusting the size of the secondary pocket 4, and thus indirectly controlling the minimum inflation height 21 of the main airbag 9 (see...). Figure 7 ).

[0046] Figure 4 The first embodiment demonstrates the use of backpack 1 in a side-lying position. Shoulder straps 5, pull straps 6, and abdominal straps 7 secure backpack 1 to the user's back. With three-point fixation at the shoulders and waist, backpack 1 is very secure and will not rotate around the torso. Simultaneously, shoulder straps 5, pull straps 6, and abdominal straps 7 distribute the restraining force from securing backpack 1. The main airbag 9 inflates the main compartment 3, causing backpack 1 to rise above the user's back, supporting the back and helping to maintain a side-lying position while preventing the user from turning to a supine position. By adjusting the fullness of the main airbag 9 and simultaneously adjusting the adjustable zipper 17 of the main compartment 3, the size of backpack 1 can be adjusted, thereby adjusting the side-lying angle.

[0047] Figure 5The first embodiment demonstrates two methods of securing the backpack 1. The pull strap 6 and the belly strap 7 are both made of Velcro-attached material. Figure 5 -A demonstrates the chest-crossing fixation of backpack 1. At this point, the two straps 6 pass from bottom to top through the loops 10 at the front of the opposite shoulder straps 5, fold back, and are then secured to the surface of their respective straps 6 with the first Velcro 11. Since the chest-crossing fixation uses a relatively long strap 6, the position of the first Velcro 11 is precisely matched. The second Velcro 12 is positioned either not yet through the loop 10 or just having passed through it, allowing it to be secured directly to the surface of the strap 6. From... Figure 5 As seen in -A, the variable adhesive position of the Velcro 11 is located between the loop 10 and the connection point between the pull strap 6 and the back panel 2. If a shorter shoulder strap 5 is used, preferably 15cm, the adjustable range of the pull strap 6 can accommodate users of all body types.

[0048] Figure 5 -B demonstrates the backpack 1's double-shoulder fastening configuration. In this configuration, two straps 6 pass from bottom to top through the loops 10 at the front of the shoulder straps 5 on the same side of the body, fold back, and are then secured to the surface of their respective straps 6 with second Velcro 12. Since the double-shoulder fastening uses shorter straps 6, the position of the second Velcro 12 is perfectly matched. The excess portion at the front of the straps 6 can be secured to the shoulder straps 5, straps 6, or belly band 7 with first Velcro 11 to prevent fraying. The variable attachment position of the Velcro 12 is between the loop 10 and the connection point between its respective strap 6 and the back panel 2. If a shorter shoulder strap 5 is used, preferably 15cm, the adjustable range of the straps 6 can accommodate users of all body types.

[0049] In this embodiment, both abdominal straps 7 are made of Velcro-attached material, and one of the abdominal straps 7 has Velcro 13. When wearing the backpack, the Velcro 13 is attached to the surface of the other abdominal strap 7, so that the two abdominal straps 7 are connected at the front of the body, thereby securing the waist and abdomen of the backpack 1.

[0050] Figure 6 and Figure 7 The flipping function of backpack 1 in this embodiment is introduced. Figure 6 -A and Figure 7 In step -A, the user remains lying on their side and has not yet begun to roll over; the main airbag 9 has not yet entered the secondary airbag 4. Next, the user begins to roll over, increasing the pressure on the main airbag 9. Its elastic outer wall expands and gradually enters the secondary airbag 4, causing the bulge height of the main airbag 3 and the main airbag 9 to decrease. Figure 6 -B and Figure 7 In step -B, the user turns to a supine position, and the main airbag 9 inflates the secondary airbag 4. At this point, the main airbag 3 and the main airbag 9 are compressed to their minimum height 21. However, the user cannot achieve a stable balance in the supine position and, according to their desire to turn over, continues to roll to the other side, beginning to enter a side-lying position. Figure 7In -C, the user returns to the side-lying position on the other side. The pressure on the main airbag 9 decreases and it contracts elastically, increasing the side-lying angle and achieving an ideal side-lying angle and stable balance.

[0051] In this embodiment, the entire surface of the main airbag 9 can be made of elastic material, or only the secondary airbag 4 can be made of elastic material. By selecting a suitable elastic material, the pressure threshold for deformation of the main airbag 9 can be adjusted to suit different users.

[0052] In this embodiment, adjusting the size of the secondary bag 4 can regulate the minimum bulge height 21 of the main bag 3 and the main airbag 9 under pressure, thus accommodating different users. On the one hand, this allows the user to overcome this obstacle and complete the rollover; on the other hand, it prevents the user from achieving a stable balance in a supine position and forces them to turn to a side-lying position.

[0053] Figure 8 and Figure 9 This is a second embodiment of the invention, and its overall structure is similar to that of the first embodiment. The special part of this embodiment is that, at the connection between the main bag 3 and the secondary bag 4, the outer wall of the main airbag 9 is connected to an elastic secondary airbag 19 via a connecting valve 20. Figure 8 In -A mode, the user remains in a side-lying position, at which point the secondary airbag 19 is in a contracted state. Figure 8 In step -B, when the user rolls over to a supine position, the main airbag 9 is compressed, causing gas to enter the secondary airbag 19. The secondary airbag 19 inflates and fills the secondary pouch 4, flattening the main pouch 3 and the main airbag 9. By selecting a suitable elastic material, the pressure threshold for deformation of the secondary airbag 19 can be adjusted to suit different users.

[0054] In this embodiment, the connecting valve 20 consists of two parts: a valve frame 22 and a valve core 23. The valve frame 22 is fixed to the main airbag 9, and the valve core 23 is fixed to the auxiliary airbag 19. The valve frame 22 and the valve core 23 can be sealed together by means of threads, rotating snaps, or plug-in connections. The interlocking insertion relationship of the valve frame 22 and the valve core 23 can be interchanged in other embodiments. The connecting valve 20 allows for the use of auxiliary airbags 19 with different elasticities. Figure 9 -A is a side view before the valve frame 22 and valve core 23 are connected. Figure 9 -B is a side view of the valve frame 22 after it is connected to the valve core 23. Figure 9 -C is a top view of the valve frame 22 and valve core 23 after they are connected. For example... Figure 9 As shown in -D, if the secondary airbag 19 is not needed, the valve core 23 can be replaced with a cover to completely seal the connecting valve 20. Furthermore, as new requirements develop, it is possible to consider incorporating an airflow control device or other intelligent device inside the valve core 23 to enhance the functionality of the backpack 1.

[0055] Figure 10This is the third embodiment of the present invention, and its overall structure is similar to that of the first embodiment. The special part of this embodiment is that the cross-sections of the main bag 3, the secondary bag 4, and the connecting part 24 are approximately the same, and at this time the main bag 3 and the secondary bag 4 have been fused together. Figure 10 In -A mode, the user remains in a side-lying position. At this time, the main airbag 9 occupies the space of the main bag 3 and does not enter the area of ​​the secondary bag 4. Figure 10 In embodiment B, when the user rolls over to a supine position, the main airbag 9 expands elastically under pressure, filling the space of the secondary bag 4. Simultaneously, the main bag 3 and the main airbag 9 flatten, allowing the user to complete the rollover. In this embodiment, the main airbag 9 may shift along the head-to-toe direction within the space where the main bag 3 and the secondary bag 4 merge in a side-lying position. However, as long as this is kept within a reasonable range, it does not affect the user's side-lying posture because the main airbag 9 does not shift along the back perpendicular to the spine; nor does it affect the rollover function because, in a side-lying position, the space not filled by the main airbag within the merged space of the main bag 3 and the secondary bag 4 remains unchanged.

[0056] Figure 11 and Figure 12 This is the fourth embodiment of the present invention. The structure of the main pocket 3, secondary pocket 4, main airbag 9, and their auxiliary devices in this embodiment is similar to that of the first embodiment. The special feature of this embodiment is that, when worn, the main pocket 3 is located at the waist and hips, and the secondary pocket 4 is located at the hips and the back of the thighs. Correspondingly, the shape and size of the back panel 2 are adjusted. In terms of the fixing method, this embodiment does not use shoulder straps 5 and pull straps 6, but instead uses a combination of abdominal straps 7 and leg straps 8. When worn, the abdominal strap 7 is fixed in the same way as in the first embodiment. One end of the leg strap 8 is fixed to the lower part of the back panel 2, and the other end passes from back to front through the user's crotch, then around the thigh, and finally connects to the outer surface of the abdominal strap 7 located on the side of the body with Velcro 14, achieving a leg-wrapping fixation. This embodiment uses a three-point fixation of the legs and waist, which can also prevent the backpack 1 from rotating around the torso and effectively distribute the restraining force. In addition, the secondary pocket 4 is located below the hips, which is more conducive to turning over. Because the legs are usually slightly bent during the rolling over process, the pressure of the thighs on the secondary bag 4 is relatively small. The secondary bag 4 is more inflated when the patient is in a supine position compared to the first embodiment, which can more effectively reduce the minimum bulge height of the main bag 3 and the main airbag 9. This embodiment has advantages such as easy rolling over, comfortable wear, and convenient disassembly, making it especially suitable for pregnant women.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A side-lying support backpack that allows the user to turn over, comprising: The device comprises a main pocket located on the user's lower back, one or more straps securing the main pocket to the user's limbs and / or torso, and an elastically deformable airbag filled within the main pocket; characterized in that a secondary pocket is provided below the main pocket, or a secondary pocket is provided above and below the main pocket respectively, and when the user turns over, the pressure on the airbag increases, causing directional elastic deformation and extending towards the secondary pocket; the main pocket has a symmetrical sheet-like back panel on the side facing the user.

2. The backpack as described in claim 1, characterized in that, The airbag is integrated with the main bag at the contact point.

3. The backpack as described in claim 1, characterized in that, The size and / or shape of the main bag are adjustable.

4. The backpack as described in claim 1, characterized in that, The size and / or shape of the secondary bag are adjustable.

5. The backpack as described in claim 1, characterized in that, The airbag includes a main airbag and a secondary airbag, and the main airbag and the secondary airbag are connected.

6. The backpack as described in claim 5, characterized in that, A connecting valve is provided at the connection point between the main airbag and the auxiliary airbag.

7. The backpack as described in claim 5, characterized in that, The secondary airbag is positioned in front of the body via the groin area.

8. The backpack as described in claim 1, characterized in that, The strap includes shoulder straps, which can be secured in two ways: a cross-over style at the chest and a double-shoulder style.

9. The backpack as described in claim 1, characterized in that, The strap includes shoulder straps and pull straps, which, when connected, can achieve two fixing methods: a chest cross-over style and a double-shoulder style.

10. The backpack as described in claim 9, characterized in that, The shoulder strap has a loop at the front, and the pull strap has a first Velcro at the front and a second Velcro in the middle.

11. The backpack as claimed in claim 1, characterized in that, The strap includes a leg strap, which can be fixed in two ways: crossed or wrapped around the leg.

12. The backpack as claimed in claim 1, characterized in that, The strap includes a leg strap and a pull strap, which, when connected, can achieve two fixing methods: a leg crossing method and a leg wrapping method.

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