Auxiliary device for body position conversion

Abstract

The invention provides an auxiliary device for body position conversion. The auxiliary device comprises a lying pillow, a head limiting piece, a guide rail and a movable frame. When the pillow is used, the face of a patient is placed in the face containing cavity of the prone pillow and adjusted to the correct body position; and after adjustment is completed, the movable end of the head limiting piece is inserted and fixed to limit the head position. When getting out of the bed, the patient gradually sits up from the bed and gradually moves to the bedside, and the head moves to drive the lying pillow to move upwards along the movable frame and drive the movable frame to move along the guide rail; when the head of the patient moves to a proper position, the patient holds the walking aid cart stably, moves the prone pillow out of the top end of the movable frame and places the prone pillow on the walking aid cart, and then the cart can be pushed to move. The body position conversion auxiliary device can assist a patient in keeping the correct body position with the face facing downwards in the whole process from lying in bed to getting out of bed movement, it is ensured that intraocular filler continuously and effectively abuts against the retina, and therefore postoperative recovery is promoted, and the curative effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical auxiliary supplies, in particular to an auxiliary device for body position conversion. BACKGROUND

[0002] Vitrectomy is a treatment method for removing the vitreous body in the eyeball. The vitreous body is a transparent gelatinous substance filled in the posterior segment of the eyeball (behind the lens and in front of the retina), and its main component is water (about 99%). It has the functions of supporting the eyeball and transmitting light. When the vitreous body becomes cloudy, proliferates or pulls the retina due to bleeding, inflammation or aging, it will seriously affect vision, and even cause serious complications such as retinal detachment. At this time, it is necessary to remove it through surgery to remove the cloudy material and relieve the traction on the retina, so that the light can reach the retina smoothly again.

[0003] After vitrectomy, the patient is often required to maintain a face-down position, the core principle of which is to take advantage of the physical characteristics of the intraocular filler (such as expanded gas or silicone oil) that is lighter in weight and easy to float upward. When the patient's face is down, the filler floats upward in the eye, acting as an internal pressing tool, continuously and closely adhering to and pressing the retinal hole or detachment area located above the eyeball. This mechanical pressing helps to drain subretinal fluid, promotes the repositioning of the detached retina, and creates favorable conditions for the formation of stable scar adhesion in the laser hole sealing area. In actual clinical nursing, the patient needs to maintain a prone position during bed rest, and a low posture when getting out of bed to ensure that the intraocular filler can stably press the retinal target area. However, during the process of getting out of bed, the patient often unconsciously changes the body position, such as head deviation or lifting the head, which may affect the repositioning of the retina and the postoperative recovery effect.

[0004] For patients with good body position compliance, they can maintain the standard prone position during bed rest without the need for auxiliary tools. However, when getting out of bed, the patient is prone to unconsciously changing the body position, such as head deviation or lifting the head, which may weaken the pressing effect of the intraocular filler. Therefore, it is best for such patients to use a body position auxiliary tool during the activity stage to ensure the stability of the low posture. For patients with poor body position compliance or those who cannot control their body position due to physical conditions, it is difficult for them to maintain the standard face-down position during the whole process of bed rest and getting out of bed. Therefore, such patients need to use a body position auxiliary tool during the whole process of bed rest and getting out of bed to forcibly standardize the body position and ensure that the intraocular filler can effectively press the retinal hole or detachment area.

[0005] Therefore, how to design an auxiliary device for body position conversion that can assist patients in maintaining the correct body position, promote postoperative recovery and improve the therapeutic effect is a technical problem that has not been solved in the prior art. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the technical defects in the prior art where patients may experience changes in body position such as head tilting or head raising during the process of getting out of bed, resulting in insufficient pressure effect of the intraocular filler, which affects retinal repositioning and postoperative recovery. The present invention provides an auxiliary device for body position change that can help patients maintain the correct body position, promote postoperative recovery and improve the therapeutic effect.

[0007] Therefore, the present invention provides an auxiliary device for changing body positions, comprising: A face-accommodating cavity is formed in the middle of the face-accommodating cavity, with openings at both the top and bottom ends of the face-accommodating cavity; A head limiting component is installed on the face rest, positioned above the face receiving cavity. One end is fixedly connected to one side of the face receiving cavity, and the other end is detachably inserted into the other side of the face receiving cavity. The guide rails are at least two in number, arranged vertically opposite each other, with one end of each rail suitable for being fixedly installed on the hospital bed, and the other end extending outward from the hospital bed. The movable frame is movably mounted on the two guide rails; the bolster is movably mounted on the movable frame and can be detached from the top of the movable frame.

[0008] As a preferred embodiment, it also includes a guide rail support structure for fixing and supporting the guide rail; The guide rail support structure includes: The supporting beam has a fixed base at its bottom; At least two guide rail fixing seats are fixedly mounted on the support beam, one above the other, and a guide rail mounting groove is formed on the side facing the guide rail. The guide rail mounting groove extends through both ends and is open on one side. The guide rail is fixedly installed in the guide rail mounting groove.

[0009] As a preferred embodiment, the mobile frame includes: There are at least two vertical guide rails, arranged opposite each other on the left and right, with one end of each rail adapted to rest against the hospital bed and the other end extending upwards from the hospital bed; the pillow is movably mounted on the two vertical guide rails. There are at least two movable crossbeams, each fixedly mounted at both ends on the vertical guide rails on both sides; the movable crossbeams are matched and installed with the guide rails and can move back and forth along the guide rails.

[0010] As a preferred embodiment, the movable crossbeam is mounted on the guide rail in a way that allows it to move back and forth via a first rolling connection structure; The first rolling connection structure includes: There are two first convex arc surfaces, which are respectively formed on the inner walls of the upper and lower sides of the guide rail; The first roller assembly includes a first mounting base and three first rollers. The first mounting base is fixedly mounted on the movable crossbeam. Two of the first rollers are rotatably mounted on one side of the first mounting base, and the third first roller is rotatably mounted on the other side of the first mounting base. The middle of each first roller is formed with a first annular concave arc surface, which matches and is rolled in contact with the first convex arc surface, thereby allowing the movable crossbeam to be moved back and forth on the guide rail. Two limit blocks are fixedly installed at both ends of the guide rail; and / or; The bolster is mounted on the vertical guide rail in a way that allows it to move up and down via a second rolling connection structure. The second rolling connection structure includes: There are two second convex arc surfaces, which are respectively formed on the inner walls of the left and right sides of the vertical guide rail; A pillow base is fixedly installed at the bottom of the pillow. The second roller assembly, comprising at least two rollers, includes a second mounting base and three second rollers. The second mounting base is fixedly mounted on the bolster base. Two of the second rollers are rotatably mounted on one side of the second mounting base, and the third second roller is rotatably mounted on the other side of the second mounting base. The middle of each second roller is formed with a second annular concave arc surface, which matches and is rolled in contact with the second convex arc surface, thereby allowing the bolster to be mounted vertically on the vertical guide rail.

[0011] As a preferred embodiment, the top section of the vertical guide rail does not have the second convex arc surface. After the second roller rolls along the second convex arc surface to the top section of the vertical guide rail, it can disengage from the top of the vertical guide rail.

[0012] As a preferred embodiment, the system also includes a walking trolley, comprising a handrail, a support tray, and wheels; the handrail includes two straight legs and two diagonal legs respectively opposite to the two straight legs; the support tray is fixedly mounted on the top of the handrail; and two wheels are rotatably mounted on the bottom of the two straight legs of the handrail. The end of the second convex arc surface near the top of the vertical guide rail is positioned at a height 1-3 cm higher than the top surface of the support tray on the vertical guide rail; the length of the support tray is greater than the length of the bolster base, and the width is greater than or equal to the width of the bolster base.

[0013] As a preferred embodiment, the guide rail includes a straight section guide rail and an arc-shaped section guide rail fixedly connected to one end of the straight section guide rail via a guide rail connector; the straight section guide rail is adapted to be fixedly installed on the hospital bed, and the arc-shaped section guide rail extends outward from the hospital bed; The guide rail connector includes a mounting part and a connecting part fixedly mounted on the mounting part. The mounting part is adapted to be fixedly mounted on the hospital bed. The connecting part has a sleeve groove that extends through both ends axially and is open on one side. A threaded through hole is provided on the side wall. The connecting part is sleeved and mounted on the outside of the connecting end of the straight section guide rail and the arc section guide rail through the sleeve groove. After being screwed into the threaded through hole with a connecting bolt, the free end presses against the arc section guide rail, thereby fixing the straight section guide rail and the arc section guide rail together.

[0014] As a preferred embodiment, the head limiting member includes: Limiting fabric piece; The first connecting strap is fixedly connected at one end to one side of the limiting cloth piece and at the other end to the pillow base; The second connecting strap is fixedly connected at one end to the other side of the limiting cloth piece, and the other end can be plugged into the pillow base through a plug-in connection structure.

[0015] As a preferred embodiment, the pillow has a first receiving opening formed on one side of the face receiving cavity; a connecting piece is fixedly disposed on the pillow base, and the connecting piece is installed into the first receiving opening; the other end of the first connecting strap is fixedly connected to the connecting piece; and / or; The pluggable connection structure includes: A second receiving opening is formed on the pillow and located on the other side of the face receiving cavity; The connecting socket is fixedly installed on the bolster base and inserted into the second receiving opening; The connecting buckle has one end fixedly connected to the other end of the second connecting strap, and the other end can be plugged into the connecting socket.

[0016] As a preferred embodiment, the connection socket includes: The housing is fixedly mounted on the bolster base and has a first mounting cavity, the first mounting cavity having a first top opening and a first side opening; The second mounting cavity is formed within the first mounting cavity and has a second top opening and a second side opening; The first mounting cylinder is formed on one inner wall of the second mounting cavity; The first elastic element is installed inside the first mounting cylinder; The lock cylinder is movably installed in the first mounting cavity through the first side opening, and partially installed into the second mounting cavity; the top of the lock cylinder is formed with a limiting claw, and a second mounting cylinder is formed on the side wall located in the second mounting cavity. The second mounting cylinder is sleeved and installed outside the first mounting cylinder, and a pressing shaft is formed inside. The end face of the pressing shaft presses against the first elastic member. The second elastic element, at least two, has one end fixedly installed on the inner bottom wall of the first mounting cavity; A buckle seat is movably installed in the first mounting cavity, located below the limiting claw, and has a buckle slot formed on its top; the other end of the second elastic member is fixedly installed at the bottom of the buckle seat. The unlock snap is movably installed in the second mounting cavity, and a pressing slope is formed at the bottom. The pressing slope is in contact with the pressing slope at the top of the limiting claw. The top cover is fixedly installed at the first top opening of the housing, and has an elongated insertion opening and a snap opening; the top of the unlocking snap extends to the outside of the top cover along the snap opening; The side plate is fixedly installed at the first side opening of the housing; When the connecting buckle is inserted into the connecting socket, the connecting buckle is inserted into the first mounting cavity along the long insertion opening and presses against the pressure-receiving inclined surface of the limiting claw, pushing the lock cylinder to move towards the second mounting cavity and compressing the first elastic member; after the limiting claw passes through the limiting slot formed on the connecting buckle, the first elastic member pushes the lock cylinder to reset, the limiting claw matches and engages with the limiting slot, and the connecting buckle is inserted into the buckle slot, compressing the second elastic member, thereby fixing the connecting buckle to the connecting socket; When it is necessary to release the connecting buckle, press down on the unlocking buckle. The pressing slope moves along the pressure slope, pushing the lock cylinder towards the second mounting cavity and compressing the first elastic element. After the limiting claw moves to disengage from the limiting slot, the second elastic element pushes the buckle seat upward, thereby pushing the connecting buckle upward to complete the release.

[0017] The technical solution provided by this invention has the following advantages: This invention relates to an auxiliary device for changing body positions, comprising a prone pillow, a head restraint, guide rails, and a movable frame. The prone pillow has a face-accommodating cavity formed in its center, with openings at both the top and bottom. The head restraint is mounted on the prone pillow, positioned above the face-accommodating cavity, with one end fixedly connected to one side of the face-accommodating cavity and the other end detachably inserted into the other side. At least two guide rails are arranged vertically opposite each other, with one end suitable for fixed installation on a hospital bed and the other end extending outwards from the bed. The movable frame is movably mounted on the two guide rails. The prone pillow is movably mounted on the movable frame and can detach from the top of the movable frame.

[0018] When a patient needs to maintain a prone position post-surgery, guide them to place their face within the face-accommodating cavity of the prone pillow and assist them in adjusting to the correct position. After adjustment, insert and fix the movable end of the head-limiting device to restrict head position and ensure the patient can stably maintain a face-down posture. When the patient needs to get out of bed, they should gradually sit up and move towards the edge of the bed. This head movement will cause the prone pillow to move upwards along the moving frame, which in turn will move the moving frame along the guide rail. When the patient's head is in a suitable position and they can get out of bed, place the medical walking trolley at the end of the guide rail. The patient should hold the trolley firmly and bring their head close to it. The prone pillow can then be removed from the top of the moving frame and placed on the trolley, allowing the patient to push the trolley for movement. This invention provides an auxiliary device for positional transitions, assisting patients in maintaining a correct face-down position throughout the transition from bedridden to ambulation, ensuring continuous and effective pressure from the intraocular tamponade on the retina, thereby promoting postoperative recovery and improving treatment efficacy. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the prior art or specific embodiments of the present invention, the accompanying drawings used in the description of the prior art or specific embodiments are briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the overall structure of the auxiliary device for body position conversion according to the present invention.

[0021] Figure 2 yes Figure 1 A schematic diagram of the middle guide rail support structure.

[0022] Figure 3 yes Figure 1 A schematic diagram of the structure of the China Mobile framework.

[0023] Figure 4 yes Figure 3 Enlarged structural diagram of part A.

[0024] Figure 5 yes Figure 3Another stereoscopic view.

[0025] Figure 6 yes Figure 5 Enlarged structural diagram of section B.

[0026] Figure 7 yes Figure 1 A schematic diagram of the exploded structure of the central guide rail.

[0027] Figure 8 yes Figure 7 A magnified schematic diagram of the structure of section C.

[0028] Figure 9 yes Figure 1 A schematic diagram of the structure of a mid-lying pillow.

[0029] Figure 10 yes Figure 9 A schematic diagram of the explosion structure.

[0030] Figure 11 yes Figure 1 A cross-sectional view of the connector buckle and connector socket after they are plugged in.

[0031] Figure 12 yes Figure 1 An exploded view of the central connection socket.

[0032] Figure 13 yes Figure 1 A schematic diagram of the inner shell structure.

[0033] Figure 14 This is a schematic diagram of the auxiliary device for changing body position according to the present invention mounted on a hospital bed.

[0034] Figure 15 yes Figure 14 Another stereoscopic view.

[0035] Reference numerals: 1. Pillow; 11. Face cavity; 12. First receiving opening; 13. Connecting piece; 14. Second receiving opening; 15. Connecting socket; 16. Connecting buckle; 17. Limiting slot; 2. Head limiting component; 21. Limiting cloth piece; 22. First connecting strap; 23. Second connecting strap; 3. Guide rail; 31. First convex arc surface; 32. First roller assembly; 33. First mounting base; 34. First roller; 35. First annular concave arc surface; 36. Limiting block; 4. Moving frame; 41. Vertical guide rail; 42. Moving crossbeam; 43. Second convex arc surface; 44. Pillow base; 45. Second roller assembly; 46. Second mounting base; 47. Second roller; 48. Second annular concave arc surface; 5. Support beam; 51. Fixed base; 52. Guide rail fixing seat; 53. Guide rail mounting groove; 6. Housing; 61. First mounting cavity; 62. Second mounting cavity; 63. First mounting cylinder; 64. First elastic element; 65. Lock cylinder; 66. Limiting claw; 67. Second mounting cylinder; 68. Pressing shaft; 7. Second elastic element; 71. Snap buckle seat; 72. Snap buckle slot; 73. Unlocking snap; 74. Pressing slope; 75. Pressing slope; 76. Top cover; 77. Long strip insertion opening; 78. Snap buckle opening; 79. Side plate; 8. Straight section guide rail; 81. Guide rail connector; 82. Arc-shaped section guide rail; 83. Mounting part; 84. Connecting part; 85. Sleeve slot; 86. Threaded through hole; 87. Connecting bolt; 9. Walking trolley; 91. Handrail bracket; 92. Support tray; 93. Moving wheels. Detailed Implementation

[0036] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0037] It should be noted that the terms "first," "second," etc., in the claims and specification of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such as a process, method, system, product, or device that includes a series of steps or units, not limited to those steps or units explicitly listed, but may also include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0038] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the term "multiple" should mean two or more. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0039] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0040] This embodiment provides an auxiliary device for changing body positions, such as... Figure 1 , 14 As shown in Figure -15, the device includes: a prone pillow 1, a head restraint 2, guide rails 3, and a movable frame 4; wherein, the prone pillow 1 has a face receiving cavity 11 formed in the middle, and the face receiving cavity 11 has openings at both the upper and lower ends; the head restraint 2 is installed on the prone pillow 1, and is installed above the face receiving cavity 11, with one end fixedly connected to one side of the face receiving cavity 11, and the other end detachably inserted into the other side of the face receiving cavity 11; there are at least two guide rails 3, arranged vertically opposite each other, with one end respectively suitable for fixed installation on the hospital bed, and the other end respectively extending outward from the hospital bed; the movable frame 4 is movably installed on the two guide rails 3; the prone pillow 1 is movably installed on the movable frame 4, and can be detached from the top of the movable frame 4.

[0041] When the patient needs to maintain a prone position after surgery, guide the patient to place their face within the face-accommodating cavity 11 of the prone pillow 1, and assist the patient in adjusting to the correct position. After adjustment, insert and fix the movable end of the head-limiting component 2 to restrict the head position, ensuring the patient can stably maintain a face-down posture. When the patient needs to get out of bed, first gradually sit up from the bed and move towards the edge. At this time, the movement of the head will cause the prone pillow 1 to move upward along the moving frame 4, and then cause the moving frame 4 to move along the guide rail 3. When the patient's head has moved to a suitable position and they can get out of bed, place the medical walking trolley at the end of the guide rail 3 in advance. The patient holds the medical walking trolley firmly and brings their head close to the trolley. The prone pillow 1 can be removed from the top of the moving frame 4 and placed on the walking trolley. The patient can then push the trolley to move around. This embodiment of the auxiliary device for positional transition can assist the patient in maintaining a face-down correct position throughout the entire process from lying in bed to getting out of bed, ensuring that the intraocular tamponade continuously and effectively presses against the retina, thereby promoting postoperative recovery and improving the therapeutic effect.

[0042] like Figure 2 As shown, it also includes a guide rail support structure for fixing and supporting the guide rail 3. The guide rail support structure includes a support beam 5 and a guide rail fixing seat 52. A fixing base 51 is fixedly installed at the bottom of the support beam 5. At least two guide rail fixing seats 52 are fixedly installed on the support beam 5, one above the other, and a guide rail mounting groove 53 is formed on the side facing the guide rail 3. The guide rail mounting groove 53 extends through both ends and is open on one side. The guide rail 3 is fixedly installed in the guide rail mounting groove 53. Fixing and supporting the guide rail 3 through the guide rail support structure not only ensures smooth movement of the patient during position changes but also maintains the structural stability of the guide rail 3 itself.

[0043] like Figures 3-6 As shown, the movable frame 4 includes vertical guide rails 41 and movable crossbeams 42; wherein, there are at least two vertical guide rails 41, arranged opposite each other on the left and right, one end of each rail being adapted to rest against the hospital bed, and the other end extending upwards from the hospital bed; the pillow 1 is movably mounted on the two vertical guide rails 41; there are at least two movable crossbeams 42, with both ends fixedly mounted on the vertical guide rails 41 on both sides; the movable crossbeams 42 are matched and installed with the guide rails 3, and can move back and forth along the guide rails 3.

[0044] like Figures 3-9As shown, the movable crossbeam 42 is movably mounted on the guide rail 3 via a first rolling connection structure; the first rolling connection structure includes a first convex arc surface 31, a first roller group 32, and a limiting block 36; wherein, there are two first convex arc surfaces 31, respectively formed on the inner walls of the upper and lower sides of the guide rail 3; the first roller group 32 includes a first mounting base 33 and three first rollers 34, the first mounting base 33 is fixedly mounted on the movable crossbeam 42, and two of the first rollers 34 are rotatably mounted on the first mounting base 33. On one side, another first roller 34 is rotatably mounted on the other side of the first mounting base 33; the middle of the first roller 34 is formed with a first annular concave arc surface 35, which matches and is installed with the first convex arc surface 31 and makes rolling contact, so that the moving crossbeam 42 can be moved back and forth on the guide rail 3; there are two limiting blocks 36, which are fixedly installed at both ends of the guide rail 3 respectively; they are used to limit the roller group inside the guide rail 3 to prevent it from falling off the guide rail during movement and to ensure the stable operation of the structure. The bolster 1 is movably mounted on the vertical guide rail 41 via a second rolling connection structure. The second rolling connection structure includes a second convex arc surface 43, a bolster base 44, and a second roller assembly 45. There are two second convex arc surfaces 43, respectively formed on the inner walls of the left and right sides of the vertical guide rail 41. The bolster base 44 is fixedly mounted on the bottom of the bolster 1. The second roller assembly 45 consists of at least two rollers, including a second mounting base 46 and three second rollers 47. The second mounting base 46 is fixedly mounted on the bolster base 44, with two second rollers 47 rotatably mounted on one side of the second mounting base 46 and the other second roller 47 rotatably mounted on the other side of the second mounting base 46. A second annular concave arc surface 48 is formed in the middle of the second roller 47. The second annular concave arc surface 48 matches and is installed with the second convex arc surface 43, and they roll in contact, thereby allowing the bolster 1 to be movably mounted on the vertical guide rail 41.

[0045] The top section of the vertical guide rail 41 does not have the second convex arc surface 43. After the second roller 47 rolls along the second convex arc surface 43 to the top section of the vertical guide rail 41, it can disengage from the top of the vertical guide rail 41.

[0046] like Figures 14-15As shown, it also includes a walking trolley 9, which includes a handrail 91, a support tray 92, and casters 93. The handrail 91 includes two straight legs and two diagonal legs that are respectively opposite to the two straight legs. The support tray 92 is fixedly mounted on the top of the handrail 91. There are two casters 93, which are rotatably mounted on the bottom of the two straight legs of the handrail 91. The bottom of the two diagonal legs is provided with an anti-slip base. The end of the second convex arc surface 43 near the top of the vertical guide rail 41 is positioned on the vertical guide rail 41 at a height 1-3 cm higher than the top surface of the support tray 92. The length of the support tray 92 is greater than the length of the prone pillow base 44, and the width is greater than or equal to the width of the prone pillow base 44. Here, the length refers to the length of the left and right sides of the head when the patient's head is resting on the prone pillow base 44; the width refers to the width of the head along the line connecting the top of the head and the neck when the patient's head is resting on the prone pillow base 44.

[0047] When the patient gets out of bed, place the walking trolley 9 at the end of the guide rail 3 beforehand. The patient's head moves the prone pillow 1 along the moving frame 4 and the guide rail 3 until the bottom of the prone pillow 1 is aligned with the support tray 92 of the walking trolley 9. The patient then slightly lifts their head, moving the prone pillow base 44 upwards until it disengages from the second convex arc surface 43, thus separating it from the vertical guide rail 41 and transferring the prone pillow base 44 onto the support tray 92. When the patient needs to return to bed, push the walking trolley 9 to a suitable position beside the bed, roughly aligned with the end of the guide rail 3. The patient's head moves the prone pillow base 44 along the length of the support tray 92 until it aligns with the second convex arc surface 43 on the vertical guide rail 41. The patient, either independently or with assistance, slightly lifts their head to reinstall the prone pillow base 44 into the vertical guide rail 41, moving the prone pillow 1 along the moving frame 4 and the guide rail 3, thus smoothly returning to the bed and resuming the prone position.

[0048] like Figures 7-8As shown, the guide rail 3 includes a straight section guide rail 8 and an arc-shaped section guide rail 82 fixedly connected to one end of the straight section guide rail 8 via a guide rail connector 81. The straight section guide rail 8 is adapted to be fixedly installed on the hospital bed, and the arc-shaped section guide rail 82 extends outward from the hospital bed. The guide rail connector 81 includes a mounting part 83 and a connecting part 84 fixedly disposed on the mounting part 83. The mounting part 83 is adapted to be fixedly installed on the hospital bed. The connecting part 84 has a sleeve groove 85, which extends axially through both ends and is open on one side. A threaded through hole 86 is provided through the side wall. The connecting part 84 is sleeved and installed on the outside of the connection end of the straight section guide rail 8 and the arc-shaped section guide rail 82 through the sleeve groove 85. After being screwed into the threaded through hole 86 with a connecting bolt 87, the free end presses against the arc-shaped section guide rail 82, thereby fixing the straight section guide rail 8 and the arc-shaped section guide rail 82 together.

[0049] like Figures 9-10 As shown, the head limiting member 2 includes a limiting cloth piece 21, a first connecting strap 22, and a second connecting strap 23; wherein, one end of the first connecting strap 22 is fixedly connected to one side of the limiting cloth piece 21, and the other end is fixedly connected to the pillow base 44; one end of the second connecting strap 23 is fixedly connected to the other side of the limiting cloth piece 21, and the other end is pluggably connected to the pillow base 44 through a pluggable connection structure.

[0050] The pillow 1 has a first receiving opening 12 formed on one side of the face receiving cavity 11; a connecting piece 13 is fixedly provided on the pillow base 44, and the connecting piece 13 is installed into the first receiving opening 12; the other end of the first connecting band 22 is fixedly connected to the connecting piece 13; the plug-in connection structure includes a second receiving opening 14, a connecting socket 15, and a connecting buckle 16; wherein, the second receiving opening 14 is formed on the pillow 1 and located on the other side of the face receiving cavity 11; the connecting socket 15 is fixedly installed on the pillow base 44 and installed into the second receiving opening 14; one end of the connecting buckle 16 is fixedly connected to the other end of the second connecting band 23, and the other end is pluggably inserted into the connecting socket 15.

[0051] like Figures 11-13As shown, the connection socket 15 includes a housing 6, a second mounting cavity 62, a first mounting cylinder 63, a first elastic element 64, a lock cylinder 65, a second elastic element 7, a snap fastener 71, an unlocking snap 73, a top cover 76, and a side plate 79; wherein, the housing 6 is fixedly mounted on the bolster base 44 and has a first mounting cavity 61, which has a first top opening and a first side opening; the second mounting cavity 62 is formed inside the first mounting cavity 61 and has a second top opening and a second side opening; the first mounting cylinder 63 is formed on one inner wall of the second mounting cavity 62; the first elastic element 64 is installed inside the first mounting cylinder 63; the lock cylinder 65 is movably mounted inside the first mounting cavity 61 through the first side opening. The lock cylinder 65 is partially installed into the second mounting cavity 62; a limiting claw 66 is formed on the top of the lock cylinder 65, and a second mounting cylinder 67 is formed on the side wall inside the second mounting cavity 62. The second mounting cylinder 67 is sleeved on the outside of the first mounting cylinder 63, and a pressing shaft 68 is formed inside it. The end face of the pressing shaft 68 presses against the first elastic member 64; there are at least two second elastic members 7, one end of which is fixedly installed on the inner bottom wall of the first mounting cavity 61; the buckle seat 71 is movably installed in the first mounting cavity 61, located below the limiting claw 66, and a buckle slot 72 is formed on the top; the other end of the second elastic member 7 is fixedly installed on the bottom of the buckle seat 71; the unlocking snap 73 is movable. Installed within the second mounting cavity 62, the bottom is formed with a pressing slope 74, which is in contact with the pressure-receiving slope 75 on the top of the limiting claw 66; the top cover 76 is fixedly installed at the first top opening of the housing 6, and has an elongated insertion opening 77 and a snap opening 78; the top of the unlocking snap 73 extends to the outside of the top cover 76 along the snap opening 78; the side plate 79 is fixedly installed at the first side opening of the housing 6; when the connecting buckle 16 is inserted into the connecting socket 15, the connecting buckle 16 is inserted into the first mounting cavity 61 along the elongated insertion opening 77, and presses against the pressure-receiving slope 75 of the limiting claw 66, pushing the lock cylinder 65 towards... The second mounting cavity 62 moves in the direction of compression, compressing the first elastic member 64; after the limiting claw 66 passes through the limiting groove 17 formed on the connecting buckle 16, the first elastic member 64 pushes the lock cylinder 65 to reset, the limiting claw 66 matches and engages with the limiting groove 17, and the connecting buckle 16 is inserted into the buckle slot 72, compressing the second elastic member 7, thereby fixing the connecting buckle 16 to the connecting socket 15; when it is necessary to release the connecting buckle 16, the unlocking snap 73 is pressed down, the pressing slope 74 moves along the pressing slope 75, pushing the lock cylinder 65 towards the second mounting cavity 62, compressing the first elastic member 64;After the limiting claw 66 moves to disengage from the limiting slot 17, the second elastic member 7 pushes the buckle seat 71 upward, thereby pushing the connecting buckle 16 upward and completing the release.

[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this innovative technical solution.

Claims

1. An auxiliary device for changing body positions, characterized in that, include: A face-accommodating cavity (11) is formed in the middle of the face-accommodating cavity (11) with openings at both the top and bottom ends; The head limiting member (2) is installed on the lying pillow (1) and is positioned above the face receiving cavity (11). One end is fixedly connected to one side of the face receiving cavity (11), and the other end is pluggably inserted into the other side of the face receiving cavity (11). The guide rails (3) are at least two, arranged opposite each other, with one end suitable for fixed installation on the hospital bed and the other end extending outward from the hospital bed; The movable frame (4) is movable back and forth on the two guide rails (3); the bolster (1) is movable up and down on the movable frame (4) and can be detached from the top of the movable frame (4).

2. The auxiliary device for changing body position according to claim 1, characterized in that: It also includes a guide rail support structure for fixing and supporting the guide rail (3); The guide rail support structure includes: The support beam (5) has a fixed base (51) at its bottom; At least two guide rail fixing seats (52) are fixedly installed on the support beam (5) with the upper and lower sides facing each other. A guide rail mounting groove (53) is formed on the side facing the guide rail (3). The guide rail mounting groove (53) passes through both ends and is open on one side. The guide rail (3) is fixedly installed in the guide rail mounting groove (53).

3. The auxiliary device for changing body positions according to claim 1, characterized in that, The mobile frame (4) includes: There are at least two vertical guide rails (41), which are arranged opposite each other on the left and right, with one end of each rail adapted to rest against the bed and the other end extending upwards from the bed; the pillow (1) is movably mounted on the two vertical guide rails (41); There are at least two movable crossbeams (42), with their ends fixedly installed on the vertical guide rails (41) on both sides; the movable crossbeams (42) are matched and installed with the guide rails (3), and can move back and forth along the guide rails (3).

4. The auxiliary device for changing body positions according to claim 3, characterized in that: The movable crossbeam (42) is mounted on the guide rail (3) in a reciprocating manner via a first rolling connection structure; The first rolling connection structure includes: There are two first convex arc surfaces (31), which are respectively formed on the inner walls of the upper and lower sides of the guide rail (3); The first roller assembly (32) includes a first mounting base (33) and three first rollers (34). The first mounting base (33) is fixedly mounted on the movable crossbeam (42). Two of the first rollers (34) are rotatably mounted on one side of the first mounting base (33), and the other first roller (34) is rotatably mounted on the other side of the first mounting base (33). The middle part of the first roller (34) is formed with a first annular concave arc surface (35). The first annular concave arc surface (35) is matched and mounted with the first convex arc surface (31) and makes rolling contact, so that the movable crossbeam (42) can be moved back and forth on the guide rail (3). There are two limit blocks (36), which are fixedly installed at both ends of the guide rail (3); and / or; The bolster (1) is mounted on the vertical guide rail (41) in a way that allows it to move up and down via a second rolling connection structure; The second rolling connection structure includes: There are two second convex arc surfaces (43), which are respectively formed on the inner walls of the left and right sides of the vertical guide rail (41); The base (44) of the bolster is fixedly installed at the bottom of the bolster (1); The second roller assembly (45) consists of at least two rollers, including a second mounting base (46) and three second rollers (47). The second mounting base (46) is fixedly mounted on the bolster base (44). Two of the second rollers (47) are rotatably mounted on one side of the second mounting base (46), and the other second roller (47) is rotatably mounted on the other side of the second mounting base (46). The middle part of the second roller (47) is formed with a second annular concave arc surface (48). The second annular concave arc surface (48) is matched and mounted with the second convex arc surface (43) and makes rolling contact, so that the bolster (1) can be moved up and down on the vertical guide rail (41).

5. The auxiliary device for changing body positions according to claim 4, characterized in that: The top section of the vertical guide rail (41) does not have the second convex arc surface (43). After the second roller (47) rolls along the second convex arc surface (43) to the top section of the vertical guide rail (41), it can disengage from the top of the vertical guide rail (41).

6. The auxiliary device for changing body position according to claim 5, characterized in that: It also includes a walking trolley (9), which includes a handrail (91), a support tray (92), and casters (93); the handrail (91) includes two straight legs and two diagonal legs that are respectively opposite to the two straight legs in front and back; the support tray (92) is fixedly installed on the top of the handrail (91); there are two casters (93), which are rotatably installed on the bottom of the two straight legs of the handrail (91); The end of the second convex arc surface (43) near the top of the vertical guide rail (41) is set at a height 1-3cm higher than the top surface height of the support tray (92) on the vertical guide rail (41); the length of the support tray (92) is greater than the length of the pillow base (44), and the width is greater than or equal to the width of the pillow base (44).

7. The auxiliary device for changing body positions according to claim 1, characterized in that: The guide rail (3) includes a straight section guide rail (8) and an arc-shaped section guide rail (82) fixedly connected to one end of the straight section guide rail (8) via a guide rail connector (81); the straight section guide rail (8) is adapted to be fixedly installed on the hospital bed, and the arc-shaped section guide rail (82) extends outward from the hospital bed; The guide rail connector (81) includes a mounting part (83) and a connecting part (84) fixedly mounted on the mounting part (83). The mounting part (83) is adapted to be fixedly mounted on the hospital bed. The connecting part (84) has a sleeve groove (85). The sleeve groove (85) extends through both ends axially and is open on one side. A threaded through hole (86) is provided through the side wall. The connecting part (84) is sleeved and mounted on the outside of the connection end of the straight section guide rail (8) and the arc section guide rail (82) through the sleeve groove (85). After the connecting bolt (87) is screwed into the threaded through hole (86), the free end presses against the arc section guide rail (82), thereby fixing the straight section guide rail (8) and the arc section guide rail (82) together.

8. The auxiliary device for changing body positions according to claim 4, characterized in that, The head limiting member (2) includes: Limiting fabric piece (21); The first connecting strap (22) is fixedly connected at one end to one side of the limiting cloth piece (21) and at the other end to the pillow base (44); The second connecting strap (23) is fixedly connected at one end to the other side of the limiting cloth piece (21), and the other end is pluggably connected to the pillow base (44) through a pluggable connection structure.

9. The auxiliary device for changing body position according to claim 8, characterized in that: The pillow (1) has a first receiving opening (12) formed on one side of the face receiving cavity (11); a connecting piece (13) is fixedly provided on the pillow base (44), and the connecting piece (13) is installed into the first receiving opening (12). The other end of the first connecting strip (22) is fixedly connected to the connecting piece (13); and / or; The pluggable connection structure includes: The second receiving opening (14) is formed on the lying pillow (1) and located on the other side of the face receiving cavity (11); The connecting socket (15) is fixedly installed on the pillow base (44) and installed into the second receiving opening (14); The connecting buckle (16) is fixedly connected at one end to the other end of the second connecting strap (23), and the other end is pluggably connected to the connecting socket (15).

10. The auxiliary device for changing body position according to claim 9, characterized in that, The connection socket (15) includes: The housing (6) is fixedly installed on the pillow base (44) and has a first mounting cavity (61), which has a first top opening and a first side opening; The second mounting cavity (62) is formed within the first mounting cavity (61) and has a second top opening and a second side opening; The first mounting cylinder (63) is formed on one side of the inner wall of the second mounting cavity (62); The first elastic element (64) is installed inside the first mounting cylinder (63); The lock cylinder (65) is movably installed in the first mounting cavity (61) through the first side opening, and partially installed in the second mounting cavity (62); the top of the lock cylinder (65) is formed with a limiting claw (66), and a second mounting cylinder (67) is formed on the side wall inside the second mounting cavity (62). The second mounting cylinder (67) is sleeved on the outside of the first mounting cylinder (63), and an extrusion shaft (68) is formed inside. The end face of the extrusion shaft (68) presses against the first elastic member (64). There are at least two second elastic elements (7), one end of which is fixedly installed on the inner bottom wall of the first mounting cavity (61); The buckle seat (71) is movably installed in the first mounting cavity (61), located below the limiting claw (66), and has a buckle slot (72) formed on the top; the other end of the second elastic member (7) is fixedly installed at the bottom of the buckle seat (71); The unlocking snap (73) is movably installed in the second mounting cavity (62), and a pressing slope (74) is formed at the bottom. The pressing slope (74) is in contact with the pressing slope (75) at the top of the limiting claw (66). The top cover (76) is fixedly installed at the first top opening position of the housing (6), and has an elongated insertion opening (77) and a snap opening (78); the top of the unlocking snap (73) extends to the outside of the top cover (76) along the snap opening (78); Side plate (79) is fixedly installed at the first side opening position of the housing (6); When the connecting buckle (16) is inserted into the connecting socket (15), the connecting buckle (16) is inserted into the first mounting cavity (61) along the long insertion opening (77) and presses against the pressure inclined surface (75) of the limiting claw (66), pushing the lock cylinder (65) to move towards the second mounting cavity (62) and compressing the first elastic member (64); after the limiting claw (66) passes through the limiting slot (17) formed on the connecting buckle (16), the first elastic member (64) pushes the lock cylinder (65) to reset, the limiting claw (66) matches and engages with the limiting slot (17), and the connecting buckle (16) is inserted into the buckle slot (72) and compresses the second elastic member (7), thereby fixing the connecting buckle (16) and the connecting socket (15) in place; When it is necessary to release the connecting buckle (16), press down on the unlocking buckle (73). The pressing slope (74) moves along the pressure slope (75), pushing the lock cylinder (65) towards the second mounting cavity (62) and compressing the first elastic member (64). After the limiting claw (66) moves to disengage from the limiting slot (17), the second elastic member (7) pushes the buckle seat (71) upward, thereby pushing the connecting buckle (16) upward to complete the release.

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