TWI867998B - Positioning aids - Google Patents

Abstract

A positioning assistive device includes a chassis and a body support device, wherein the body support device is constructed to be operable to provide a flat mode for a patient to lie flat and a chair mode for a patient to sit, a support member is hinged between the chassis and the body support device, a supine drive is hinged between the chassis and the body support device, and a lifting drive is hinged between the support member and the chassis pivot, the lifting drive operates to pivot the support member to cause the body support device to change its height, and the supine drive operates to pivot the body support device in the flat mode relative to the support member between perpendicular and parallel to the chassis.

Description

Positioning aids

The present invention is a positioning assistive device, in particular to an assistive device for helping patients with cerebral palsy, muscle atrophy and the like to maintain standing, lying and sitting postures.

Some patients with cerebral palsy or muscle atrophy cannot rely on their own body strength to maintain various postures. However, these patients need to use standing or sitting postures in rehabilitation or some daily life.

The patient needs the assistance of others to move to the assistive device, and the body support frame of the assistive device can be pivoted to a horizontal state, allowing the patient to move from a chair or bed to the supine standing assistive device. However, the height of the assistive device may not be consistent with the height of the chair or bed, so the process of the patient moving to the assistive device or from the assistive device to the chair or bed is relatively difficult and inconvenient.

In addition, the heights of patients with cerebral palsy or muscular atrophy may vary greatly (for example, an adult may be 170 cm tall, while a child may only be 130 cm tall). This traditional assistive device is not easy to adapt to patients of different heights. If the patient is a child, as the patient grows, the assistive device may need to be replaced with different sizes multiple times.

To this end, the present invention provides a positioning aid, comprising: a chassis; a support member pivotally connected to the chassis, the support member comprising two open support ends; a lifting actuator pivotally connected to the chassis and the support member, the lifting actuator actuates to cause the support member to pivot and change the distance between each open support end and the chassis, and when the lifting actuator is not actuated, the support member cannot pivot; A body support device includes a fixing assembly, the fixing assembly includes two first fixing frame hinges detachably hinged to the two open support ends, the body support device further includes an upper frame hinged to the fixing assembly and a lower frame hinged to the fixing assembly, the fixing assembly is located between the upper frame and the lower frame, the body support device is configured to be adjustable to a flat mode and a chair mode, when the body support device is in the flat mode, the upper frame and the lower frame are in a and the fixing components are parallel to each other. When the body support device is adjusted to the chair mode, the upper frame and the lower frame are parallel to each other. The angle between the upper frame and the lower frame relative to the fixing component is between a right angle and a blunt angle, and the angle between the fixing component and the chassis is between parallel and a sharp angle. When the body support device is in the flat mode and the fixing component and the chassis are roughly parallel to each other, the support pivot changes the vertical distance between the fixing component and the chassis. A supine actuator is pivoted between the chassis and the fixed assembly. When the body support device is in the flat mode, the supine actuator is actuated to cause the fixed assembly to pivot between the two first fixed frame pivots and the chassis in a parallel and perpendicular manner.

The body support device can be adjusted to a flat mode and a chair mode, and can be used to support the patient to maintain a standing position, a sitting position, or a lying position, and has good versatility. The body support device can pivot and change the vertical distance between the body support device and the chassis, and the body support device can be moved to a position that is approximately the same height as the bed or the chair, so that the patient and/or the patient's assistant will be more labor-saving and convenient to get on and off the positioning aid. The supine driving device cooperates with the supporting member to support the body support device in the flat mode to pivot between perpendicular to the chassis and parallel to the chassis, so that the patient can easily move to the positioning aid to lie flat when the body support device is in a horizontal state, and then pivot the body support device to a state approximately perpendicular to the chassis, so that the patient can conveniently change from a lying position to a standing position.

In one embodiment, the positioning aid further comprises: A movable assembly pivotally connected between the upper frame and the lower frame, the movable assembly being spaced apart from the fixed assembly in parallel, when the movable assembly remains stationary, the upper frame and the lower frame are fixed, when the movable assembly moves relative to the fixed assembly, the upper frame and the lower frame pivot relative to the fixed assembly.

In one embodiment, the positioning aid further comprises: A local tilt actuator pivotally connected to the upper frame and the fixed assembly. When the local tilt actuator remains inactive, the angle between the upper frame and the fixed assembly is fixed, causing the movable assembly to be unable to move and the lower frame to be unable to pivot. When the local tilt actuator is activated, the upper frame pivots relative to the fixed assembly, causing the movable assembly to move and the lower frame to pivot synchronously; an integral tilt actuator, pivotally disposed between the fixing assembly and the support member, the integral tilt actuator and the fixing assembly being pivotally located at the same axis as the two first fixing frame pivots, so that when the body support device pivots around the two first fixing frame pivots, the integral tilt actuator remains stationary, and when the integral tilt actuator remains stationary, the fixing assembly cannot be moved at the pivot of the supine lying actuator. The fixed assembly is pivoted on the axis. When the fixed assembly is substantially parallel to the chassis and the overall tilt driver remains in motion, the fixed assembly, the upper frame and the lower frame together pivot on the pivot of the supine driver so that the two open support ends are separated from the fixed assembly. When the fixed assembly is perpendicular to the chassis, the overall tilt driver cannot be actuated and the two open support ends cannot be separated from the fixed assembly.

The local tilt actuator cooperates with the upper frame, the lower frame and the parallel connecting rod group to adjust the tilt angles of the upper frame and the lower frame relative to the parallel connecting rod group, so that the body support device can be more easily adjusted to a comfortable angle for the patient.

In one embodiment, the positioning aid, wherein the fixing assembly includes a first fixing frame and a second fixing frame, the first fixing frame includes a fixing portion, the second fixing frame includes a plurality of adjusting portions, the first fixing frame and the second fixing frame are movably sleeved, when the fixing portion and each of the adjusting portions are not fixed, the second fixing frame allows for telescopic displacement relative to the first fixing frame, when the fixing portion is fixed to one of the adjusting portions, the second fixing frame cannot be displaced relative to the first fixing frame, the movable assembly includes a first movable rod and a second movable rod, the first movable rod includes a positioning portion, the second movable rod includes a plurality of adjusting portions, the first movable rod and the second movable rod are movably sleeved, when the positioning portion and each of the adjusting portions are not fixed, the second movable rod allows for telescopic displacement relative to the first movable rod The second movable rod is not movable relative to the first movable rod when the positioning portion is fixed to one of the adjusting portions. When the second fixing frame and the second movable rod are displaced together, the position of the upper frame is changed. The local tilt actuator includes a first local tilt hinge and a second local tilt hinge. The first local tilt hinge is hinged to the upper frame, and the second local tilt hinge is hinged to the fixing portion. The second fixing frame of the assembly is pivoted, the supine actuator includes a first supine hinge and a second supine hinge, the first supine hinge is pivoted with the chassis, the second supine hinge is pivoted with the first fixing frame, the integral tilt actuator includes a first integral tilt hinge and a second integral tilt hinge, the first integral tilt hinge is pivoted with the support member, and the second integral tilt hinge is pivoted with the first fixing frame.

The second fixing frame of the fixing assembly can be displaced relative to the first fixing frame, and the two second movable rods of the movable assembly can be displaced relative to the two first movable rods, so as to adjust the distance between the upper frame and the lower frame, so that the body support frame can be suitable for patients of various heights.

In one embodiment, the positioning aid, wherein the fixing assembly includes a first fixing frame and a second fixing frame, the first fixing frame includes a fixing portion, the second fixing frame includes a plurality of adjusting portions, the first fixing frame and the second fixing frame are movably connected, when the fixing portion and each of the adjusting portions are not fixed, the second fixing frame is allowed to be telescopically displaced relative to the first fixing frame, when the fixing portion is fixed to one of the adjusting portions, the second fixing frame cannot be displaced relative to the first fixing frame, and the movable assembly includes A first movable rod and a second movable rod, the first movable rod includes a positioning portion, the second movable rod includes a plurality of adjustment portions, the first movable rod and the second movable rod are movably sleeved, when the positioning portion and the adjustment portions are not fixed, the second movable frame allows for extension and contraction relative to the first movable rod, when the positioning portion and one of the adjustment portions are fixed, the second movable rod cannot be displaced relative to the first movable rod, and when the second fixed frame and the second movable rod are displaced together, the position of the upper frame is changed.

The present invention further provides a positioning aid, comprising: a chassis; a fixed assembly, comprising two first fixed frame hinges and two second fixed frame hinges separated from the two first fixed frame hinges; a support member, pivoted with the chassis and each of the first fixed frame hinges; an upper frame, pivoted with each of the second fixed frame hinges; a lower frame, pivoted with each of the first fixed frame hinges; a movable assembly, pivoted with the upper frame and the lower frame; a lifting actuator, pivoted with the support member and the chassis, the lifting actuator actuating to cause the support member to pivot so that the fixed assembly, the upper frame, the lower frame and the movable assembly are displaced together; A partial tilt actuator is pivoted with the upper frame and the fixed assembly. When the partial tilt actuator is stationary, the upper frame, the lower frame and the movable assembly cannot move. When the partial tilt actuator is actuated, the upper frame pivots with the second fixed frame pivots as the axis and links the movable assembly to push the lower frame to pivot together; A supine actuator is pivoted with the chassis and the fixed assembly. When the supine actuator is stationary, the angle between the fixed assembly and the movable assembly is fixed relative to the chassis. When the supine actuator is actuated, the fixed assembly, the movable assembly, the upper frame and the lower frame pivot together with the first fixed frame pivots as the axis relative to the chassis.

The body support device can be adjusted to a flat mode and a chair mode, and can be used to support the patient to maintain a standing position, a sitting position, or a lying position, and has good versatility. The body support device can pivot and change the vertical distance between the body support device and the chassis, and the body support device can be moved to a position that is approximately the same height as the bed or the chair, so that the patient and/or the patient's assistant will be more labor-saving and convenient to get on and off the positioning aid.

In one embodiment, the positioning aid, wherein the fixing assembly includes a first fixing frame and a second fixing frame, the first fixing frame includes a fixing portion, each of the first fixing frame pivots at the end of the first fixing frame, the second fixing frame includes a plurality of adjustment portions, each of the second fixing frame pivots at the end of the second fixing frame, the first fixing frame and the second fixing frame are movably sleeved, the movable assembly includes a first movable rod and a second movable rod, the first movable rod includes a positioning portion, the first movable rod includes a positioning portion, the second ... The two movable rods include a plurality of adjustment parts. The first movable rod and the second movable rod are movably sleeved. When the fixed part and each of the adjustment parts are not fixed and the positioning part and each of the adjustment parts are not fixed, the second movable rod and the upper frame are allowed to change their positions relative to the first fixed frame and the first movable rod. When the fixed part and each of the adjustment parts are fixed and the positioning part and each of the adjustment parts are fixed, the second movable rod and the upper frame cannot change their positions relative to the first fixed frame and the first movable rod.

The second fixing frame of the fixing assembly can be displaced relative to the first fixing frame, and the two second movable rods of the movable assembly can be displaced relative to the two first movable rods, so as to adjust the distance between the upper frame and the lower frame, so that the body support frame can be suitable for patients of various heights.

In one embodiment, the positioning aid further comprises: A pedal bracket, the lower frame comprises a plurality of height adjustment holes, each of the height adjustment holes is arranged in a straight line along an extension direction parallel to the upper frame, the pedal bracket comprises a coupling end, the coupling end can be selectively coupled with at least one of the height adjustment holes, when the coupling end is coupled with the height adjustment holes at different positions, the distance between the pedal bracket and the fixing assembly changes.

The coupling end of the pedal bracket can be selectively coupled with the four height adjustment holes at different positions, and the body support device is assembled into a minimum size state to be suitable for patients with shorter stature (such as children).

The present invention further provides a positioning aid, comprising: a chassis; a body support device, the body support device being constructed to be operable to provide a flat mode for a patient to lie flat and a chair mode for a patient to sit; a support member pivotally connected to the chassis and the body support device; a supine drive pivotally connected to the chassis and the body support device; and A lifting actuator is pivoted with the support member and the chassis. The lifting actuator operates to pivot the support member to change the height of the body support device. The supine actuator operates to pivot the body support device in the flat mode relative to the support member between perpendicular and parallel to the chassis.

The body support device can be adjusted to a flat mode and a chair mode, and can be used to support the patient to maintain a standing position, a sitting position, or a lying position, and has good versatility. The body support device can pivot and change the vertical distance between the body support device and the chassis, and the body support device can be moved to a position that is approximately the same height as the bed or the chair, so that the patient and/or the patient's assistant will be more labor-saving and convenient to get on and off the positioning aid. The supine driving device cooperates with the supporting member to support the body support device in the flat mode to pivot between perpendicular to the chassis and parallel to the chassis, so that the patient can easily move to the positioning aid to lie flat when the body support device is in a horizontal state, and then pivot the body support device to a state approximately perpendicular to the chassis, so that the patient can conveniently change from a lying position to a standing position.

In one embodiment, the positioning aid further comprises: An integral tilt actuator pivotally connected to the support link and the body support device, and when the integral tilt actuator is in operation, the body support device pivots using the pivot with the supine actuator as an axis and separates from the support member, so that the body support device in the chair mode tilts.

The overall tilt drive cooperates with the supine drive to support the overall pivoting of the body support device and position the tilt angle relative to the chassis. When the body support device is in chair mode and is tilted as a whole relative to the chassis, the patient can maintain a sitting position with less effort.

The present invention will be more clearly understood following the detailed description of illustrative embodiments of the present invention, which are illustrated in conjunction with the accompanying drawings.

The present invention relates to a positioning assistive device, in particular, an assistive device for helping patients with cerebral palsy or muscle atrophy (hereinafter referred to as patients) to maintain standing, lying and sitting postures. Referring to FIGS. 1 to 4, the positioning assistive device 10 includes a chassis 20, the chassis 20 is equipped with four wheels for supporting the movement of the chassis 20, and the chassis 20 includes two side rods 22 symmetrically spaced from each other, a front connecting rod 24 connected between the two side rods 22, and a rear connecting rod 24. 6. Two side hinges 28 are provided on the two side rods 22, a front hinge 30 is provided on the front connecting rod 24, and a rear hinge 32 is provided on the rear connecting rod 26. The two side hinges 28 are located between the front hinge 30 and the rear hinge 32 along the extension direction of each side rod 22.

The positioning aid 10 further includes a support member 111 pivoted to the chassis 20 and a lifting actuator 133. The support member 111 is substantially H-shaped, and includes a support connecting rod 113 extending laterally. The support member 111 further includes two open support ends 117 and two pivoting ends 115. The two open support ends 117 may be but are not limited to being formed by U-shaped grooves. A first pivot 119 and a second pivot 131 are provided on the support connecting rod 113. The two pivot ends 115 of the support member 111 are pivoted with the two side pivots 28 of the chassis 20, so it can be understood that the support member 111 can use the two side pivots 28 as a rotation axis to pivot relative to the chassis 20 to change the vertical distance between the two open supporting ends 117 and the chassis 20.

The lifting actuator 133 is pivotally connected to the chassis 20 and the support member 111. The lifting actuator 133 includes a first lifting arm 135 and a second lifting arm 137 that can move. The lifting actuator 133 can be but is not limited to being composed of a mechanism of a motor, a gear and a rack. When the lifting actuator 133 is actuated, the second lifting arm 137 will produce an extension and contraction displacement. The first lifting hinge 135 is pivoted to the front hinge 30 of the chassis 20, and the second lifting hinge 137 is pivoted to the first hinge 119 of the support member 111. Therefore, it can be understood that when the lifting actuator 133 remains stationary, the support member 111 cannot pivot. When the lifting actuator 133 is actuated, the second lifting hinge 137 is displaced and links the support member 111 to pivot, thereby changing the vertical distance between the two open support ends 117 and the chassis 20.

The support member 111 is connected to a body support device 34, and the body support device 34 includes a parallel connecting rod group 36, and the parallel connecting rod group 36 includes a fixed component 38 and a movable component 60 that are parallel to each other. The fixed component 38 includes a first fixed frame 40 that is generally H-shaped and a second fixed frame 52 that is generally U-shaped. The first fixed frame 40 includes a first fixed frame connecting rod 42 and a second fixed frame connecting rod 44 extending laterally. The first fixed frame 40 includes a first fixed frame connecting rod 42 and a second fixed frame connecting rod 44 extending laterally. The first fixing frame 40 includes two first fixing frame hinges 46 and two fixing portions 47 separated from the first fixing frame connecting rod 42 and the second fixing frame connecting rod 44. The two fixing portions 47 can be but are not limited to being formed by circular holes. In addition, the first fixing frame connecting rod 42 includes a second fixing frame hinge 48. It is worth mentioning that the second fixing frame hinge 48 is located between the two first fixing frame hinges 46 and the three are arranged in a straight line (same axis). The second fixing frame connecting rod 44 includes a third fixing frame hinge 50. The two first fixing frame hinges 46 of the first fixing frame 40 are detachably hinged with the two open support ends 117 of the support member 111.

The second fixing frame 52 is movably connected to the first fixing frame 40. The second fixing frame 52 includes a second fixing frame connecting rod 54 extending horizontally and two second fixing frame pivot parts 56 separated from the second fixing frame connecting rod 54. The second fixing frame 52 also includes a plurality of adjustment parts 57 located on both sides and separated from the second fixing frame connecting rod 54. Each of the adjustment parts 57 is arranged in two straight lines and is disposed on both sides of the second fixing frame 52. Each of the adjustment parts 57 can be, but is not limited to, composed of a circular hole. The second fixing frame connecting rod 54 includes a fixing frame connecting part 58, and the fixing frame connecting part 58 is located between the two second fixing frame pivot parts 56.

The diameter of the first fixing frame 40 is slightly larger than the diameter of the second fixing frame 52, so the second fixing frame 52 can be sleeved into the first fixing frame 40, and two of the adjusting portions 57 on both sides of the second fixing frame 52 are aligned with the two fixing portions 47 of the first fixing frame 40, and two positioning pins 67 are used to sleeve the two fixing portions 47 and the corresponding two adjusting portions 57, so that the second fixing frame 52 can be fixed and will not be displaced relative to the first fixing frame 40. It can be understood that when the two positioning pins 67 are removed, the second fixing frame 52 can be displaced relative to the first fixing frame 40 to change the size of the fixing assembly 38.

The movable assembly 60 includes two separated first movable rods 62 and two second movable rods 68. The two first movable rods 62 each include a first movable rod pivot 64 and a positioning portion 66. The two second movable rods 68 each include a second movable rod pivot 70 and a plurality of adjustment portions 72 arranged in a straight line. The diameter of the two first movable rods 62 is slightly larger than the diameter of the two second movable rods 68, so the two second movable rods 68 can be inserted into the two first movable rods 62, and one of the adjustment parts 72 of each of the second movable rods 68 is aligned with the two positioning parts 66 of the first movable rod 62, and the other two positioning pins 67 are used to be sleeved with the two positioning parts 66 and the corresponding two adjustment parts 72, so that each of the second movable rods 68 can be fixed and will not be displaced relative to each of the first movable rods 62. It can be understood that when the two positioning pins 67 combined with the movable assembly 60 are removed, the second movable rod 68 can be displaced relative to the first movable rod 62 to change the size of the movable assembly 60.

The movable assembly 60 is movably disposed on one side of the fixed assembly 38 relative to the fixed assembly 38, the two second movable rod hinges 70 and the two second fixed frame hinges 56 are located on the same side, and the two first movable rod hinges 64 and the two first fixed frame hinges 46 are located on the same side. It is worth mentioning that the size change of the movable assembly 60 needs to be adjusted together with the size of the fixed assembly 38.

The positioning aid 10 further includes a supine actuator 118 pivotally connected to the fixing assembly 38 and the chassis 20. The supine actuator 118 includes a first supine hinge 130 and a movable second supine hinge 132. The supine actuator 118 may be, but is not limited to, made of a pneumatic rod or a hydraulic rod. The first supine hinge 130 of the supine actuator 118 is pivotally connected to the rear hinge 32 of the chassis 20, and the second supine hinge 132 is pivotally connected to the third fixing frame hinge 50 of the first fixing frame 40 of the fixing assembly 38. Therefore, it can be understood that when the supine actuator 118 is not actuated, the second supine hinge 132 does not move, and the angle between the parallel linkage assembly 36 and the chassis 20 remains fixed. When the supine actuator 118 is actuated, the parallel linkage assembly 36 uses the two first fixed frame hinges 46 as the pivot axis to change the angle between the parallel linkage assembly 36 and the chassis 20 (from vertical to horizontal as shown in Figures 4 to 7).

The body support device 34 further includes an upper frame 74 and a lower frame 90 pivotally connected to the fixing assembly 38, the parallel connecting rod assembly 36 is located between the upper frame 74 and the lower frame 90, the upper frame 74 is generally H-shaped and includes an upper frame connecting rod 76 extending laterally, the upper frame 74 includes two first upper frame pivots 78 and two second upper frame pivots 80 located at two ends, Each of the second upper frame hinges 80 is adjacent to one of the first upper frame hinges 78, the upper frame connecting rod 76 includes a third upper frame hinge 82, the upper frame 74 further includes two handles 86 on different sides of the two first upper frame hinges 78, and the upper frame 74 also includes two symmetrically spaced sleeves 84, the two handles 86 provide a human hand grip for pushing the positioning aid 10 to move.

The two first upper frame hinges 78 of the upper frame 74 are hinged to the two second movable rod hinges 70 of the movable assembly 60, and the two second upper frame hinges 80 are hinged to the two second fixing frame hinges 56 of the fixing assembly 38. It can be understood that when the upper frame 74 uses the two second fixing frame hinges 56 as the axial pivot, the movable assembly 60 will be displaced relative to the fixing assembly 38. In addition, the two sleeve tubes 84 are further detachably sleeved to a table support frame 88 (composed of two square-section tubes).

The lower frame 90 includes two first lower frame hinges 92 and two second lower frame hinges 94 located at two ends, each of the first lower frame hinges 92 is adjacent to a second lower frame hinge 94, and the lower frame 90 further includes a plurality of height adjustment holes 96 arranged in two straight lines and disposed on both sides of the lower frame 90. Each of the first lower frame hinges 92 of the lower frame 90 is hinged to a first fixed frame hinge 46 of the fixed assembly 38, and each of the second lower frame hinges 94 is hinged to a first movable rod hinge 64 of the movable assembly 60. Therefore, it can be understood that when the upper frame 74 rotates around the two second fixing frame hinges 56 as the axis, the lower frame 90 is pushed by the movable assembly 60 and synchronously rotates around the two first fixing frame hinges 46 as the axis.

The lower frame 90 is detachably combined with a pedal bracket 97, and the pedal bracket 97 includes two combining ends 98 and a footrest 179. The two combining ends 98 of the pedal bracket 97 are combined with four (two on each side) of the plurality of height adjustment holes 96 of the lower frame 90.

It is worth mentioning that the upper frame 74 and the lower frame 90 are arranged to be parallel to each other. Even if the upper frame 74 and the lower frame 90 are pivoted, the upper frame 74 and the lower frame 90 still maintain a parallel state (as shown in Figures 4 to 11).

The positioning aid 10 further includes a local tilt actuator 155 pivotally connected to the upper frame 74 and the fixing assembly 38, the local tilt actuator 155 includes a first local tilt hinge 157 and a second local tilt hinge 159, the local tilt actuator 155 can be but is not limited to being composed of a pneumatic rod or a hydraulic rod, when the local tilt actuator 155 is actuated, the second local tilt hinge 159 will displace and change the distance between the first local tilt hinge 157 and the second local tilt hinge 159. The first partially inclined hinge 157 is hinged to the third upper frame hinge 82 of the upper frame 74 , and the second partially inclined hinge 159 is hinged to the fixing frame connecting portion 58 of the fixing assembly 38 .

It can be understood that when the local tilt actuator 155 is not actuated, the upper frame 74 cannot pivot relative to the fixed assembly 38 with the two second fixed frame hinges 56 as the axis, and the lower frame 90 cannot pivot relative to the fixed assembly 38 with the two first fixed frame hinges 46 as the axis. When the local tilt actuator 155 is actuated to change the distance between the first local tilt hinge 157 and the second local tilt hinge 159, the upper frame 74 pivots relative to the fixed assembly 38 with the two second fixed frame hinges 56 as the axis, and the lower frame 90 also pivots relative to the fixed assembly 38 with the two first fixed frame hinges 46 as the axis (as shown in Figures 8 and 9).

The positioning aid 10 further includes an integral tilt actuator 139 pivotally connected to the support member 111 and the fixing assembly 38. The integral tilt actuator 139 includes a first integral tilt hinge 151 and a second integral tilt hinge 153. The integral tilt actuator 139 may be, but is not limited to, composed of a pneumatic rod or a hydraulic rod. When the integral tilt actuator 139 is actuated, the second integral tilt hinge 153 will displace and change the distance between the first integral tilt hinge 151 and the second integral tilt hinge 153.

The first integral tilt hinge 151 is pivoted with the second hinge 131 of the support member 111, and the second integral tilt hinge 153 is pivoted with the second fixed frame hinge 48. It is worth mentioning that the pivot point between the second integral tilt hinge 153 and the second fixed frame hinge 48 is coaxial with the two first fixed frame hinges 46 and the two open support ends 117. Therefore, it can be understood that when the body support device 34 uses the two open support ends 117 and the two first fixed frame hinges 46 as the axis pivot, the second integral tilt hinge 153 of the integral tilt actuator 139 also serves as the pivot axis of the body support device 34 and will not move.

The positioning aid 10 further includes a back plate 175 fixed on the upper frame 74, a table plate 173 fixed on the table plate support frame 88, a seat plate 171 fixed on the fixing assembly 38 of the parallel link assembly 36, a lower plate 177 fixed on the lower frame 90, and a footrest 179 fixed on the pedal bracket 97, wherein the footrest 179 and the lower plate 177 are kept in a mutually perpendicular state. In addition, the back plate 175, the seat plate 171, and the lower plate 177 can be additionally provided with soft pads made of sponge, foam, etc., and equipment such as bandages for fixing body parts of patients (not shown in the figure).

The technical features of the positioning aid 10 of the present invention have been described in detail above. The operation of the positioning aid 10 of the present invention will be further described below. Referring to Figures 3 and 4, it is assumed that the body support device 34 is in a flat mode and is perpendicular to the chassis 20. In this state, the parallel connecting rod group 36 of the body support device 34 is parallel to the upper frame 74 and the lower frame 90 and is arranged in a straight line. The surfaces of the back plate 175, the seat plate 171 and the lower plate 177 are all located on the same plane, and the overall tilt actuator 139 and the support member 111 are substantially parallel to each other. When the supine actuator 118 is not actuated, the body support device 34 cannot rotate with the two open support ends 117 as the axis to maintain an angle perpendicular to the chassis 20. In addition, when the local tilt actuator 155 is not actuated, the upper frame 74, the parallel connecting rod assembly 36 and the lower frame 90 remain parallel to each other. When the lifting actuator 133 is not actuated, the vertical distances between the footboard 179, the seat board 171, the lower board 177, the back board 175 and the table board 173 and the chassis 20 will not change.

It should be particularly noted that, in the state shown in Figures 3 and 4, the opening direction of the two open support ends 117 of the support member 111 is different from the direction of the axial pivot rotation of the body support device 34 using the third fixed frame hinge 50 and the second supine hinge 132. Therefore, the overall tilt actuator 139 is essentially unable to operate because the movement direction of the two first fixed frame hinges 46 interferes with the two open support ends 117.

The state of the positioning aid 10 shown in Figures 3 and 4 is used to support the patient to maintain a standing posture, that is, the patient's feet are stepped on the footrest 179, and the other parts of the patient's body are fixed by the backboard 175, the seat board 171 and the lower board 177 respectively with appropriate straps, and the table board 173 provides a place for the patient's hands to be placed.

Referring to Figures 5 to 7, since the patient may need the support of others when getting on or off the positioning aid 10 of the present invention, in this case, the positioning aid 10 can also turn the body support device 34 in the flat mode into a horizontal state and adjust it to an appropriate height, so that others can help the patient move from a chair or a bed to the positioning aid 10.

In detail, when the lifting actuator 133, the overall tilt actuator 139 and the local tilt actuator 155 remain inactive, the supine actuator 118 is actuated to shorten the distance between the first supine hinge 130 and the second supine hinge 132, so that the body support device 34 will pivot from a vertical state (as shown in FIG. 4) to a horizontal state (as shown in FIG. 6) with the two open support ends 117 and the first fixed frame hinge 46 as the pivot axis. As shown in FIG. 6, when the body support device 34 is in a horizontal state, it is easier for the patient to move onto the body support device 34.

The body support device 34 in the horizontal state shown in FIG. 6 is located at a position with a maximum vertical distance from the base 20. Assuming that the body support device 34 is higher than the bed or chair where the patient is located after pivoting to the horizontal state, the lifting drive 133 can operate to shorten the distance between the first lifting pivot 135 and the second lifting pivot 137 while the supine drive 118, the overall tilt drive 139 and the partial tilt drive 155 remain stationary. In this way, the support member 111 will pivot with the two side pivots 28 as the pivot axis, causing the two open support ends 117 to be closer to the base 20. As the vertical distance between the second overall tilting hinge 153 and the first fixed frame hinge 46 and the chassis 20 is reduced, the vertical distance between the second overall tilting hinge 153 and the first fixed frame hinge 46 and the chassis 20 is also reduced synchronously. In this state, the entire body support device 34 can change the vertical distance between it and the chassis 20. As shown in FIG. 7, the body support device 34 is adjusted to a position where the vertical distance between it and the chassis 20 is minimum. Therefore, the body support device 34 in the flat mode is allowed to change its height in the horizontal state in accordance with the height of the patient, thereby enabling the patient and others assisting the patient to move the patient to the positioning aid 10 with less effort.

It should be particularly noted that, as shown in Figures 5 to 7, no matter what the angle between the body support device 34 and the chassis 20 is, the overall tilt drive 139 is maintained in a parallel state with the support member 111. Furthermore, in order to facilitate the patient to get on and off the positioning assistive device 10, the table support frame 88 and the table 173 can be removed in advance, and the table support frame 88 and the table 173 can be further installed after the patient is moved onto the positioning assistive device 10.

As shown in FIGS. 6 and 8, the body support device 34 can be adjusted to a flat mode as shown in FIG. 6 as well as a seat mode as shown in FIG. 8. Specifically, the partial tilt actuator 155 can be driven to operate when the body support device 34 is in a horizontal state, but is not limited to, so that the distance between the first partial tilt hinge 157 and the second partial tilt hinge 159 is increased, so that the upper frame 74, the back panel 175, the table support frame 88 and the table 173 will be pivoted together with the two second fixing frame hinges 56. The upper frame 74 is pivoted on the axis, and the two first upper frame pivots 78 push the movable assembly 60 to move parallel to the fixed assembly 38, and the movable assembly 60 further links the lower frame 90, the pedal bracket 97, the lower plate 177 and the footrest 179 to pivot synchronously, so that the upper frame 74 is roughly parallel to the lower frame 90 at an angle with the parallel connecting rod assembly 36, and the angle between the lower frame 90 and the parallel connecting rod assembly 36 is also between a right angle and a blunt angle, and the body support device 34 is adjusted to a seat mode.

When the body support device 34 is in the chair mode, the patient's feet are still placed on the footrest 179, the buttocks are supported by the seat plate 171, the back is supported by the back plate 175, and the hands can still be placed on the table plate 173. It is worth mentioning that in the state shown in Figure 8, the overall tilt actuator 139 still remains parallel to the support member 111, and it can also be understood that when the body support device 34 is in the chair mode, the operation of the lifting actuator 133 can change the vertical distance between the seat plate 171 and the chassis 20 (not shown).

As shown in FIG. 8 , the upper frame 74 and the lower frame 90 are pivoted to a state where the angle between them and the parallel connecting rod assembly 36 is 90° (vertical) ^. As shown in FIG. 9 , the upper frame 74 and the lower frame 90 are pivoted to a state where the angle between them and the parallel connecting rod assembly 36 is 112° (blunt) ^. After the upper frame 74 and the lower frame 90 are adjusted to a proper angle, the local tilt actuator 155 is not actuated to fix the distance between the first local tilt hinge 157 and the second local tilt hinge 159, and the angle of the upper frame 74 and the lower frame 90 relative to the parallel connecting rod assembly 36 is positioned.

Referring to the state shown in FIG. 8 , the openings of the two open support ends 117 of the support member 111 face upward, and the opening direction of the two open support ends 117 is the same as the movement direction of the two first fixing frame hinges 46 of the body support device 34 pivoting around the third fixing frame hinge 50 as the pivot axis, thereby allowing the overall tilting actuator 139 to be actuated when the supine actuator 118, the local tilting actuator 155, and the lifting actuator 133 are not actuated, further causing the distance between the first overall tilting hinge 151 and the second overall tilting hinge 153 to increase, so that the overall tilting actuator 139 is actuated. 39 links the entire pivot of the body support device 34, as shown in FIG. 10, so that the parallel linkage group 36, the seat plate 171, the lower frame 90, the lower plate 177, the upper frame 74, the back plate 175, the table support frame 88, and the table 173 will be tilted relative to the chassis 20. In the state shown in FIG. 10, the two first fixed frame pivots 46 of the fixing assembly 38 are separated from the two open support ends 117 of the support member 111, so that the body support device 34 is supported by the supine actuator 118 and the overall tilt actuator 139 to maintain the tilt angle. In addition, it is worth mentioning that only in this state, the overall tilt driver 139 and the support member 111 are not parallel to each other.

After the body support device 34 is pivoted to an appropriate angle, the overall tilt actuator 139 is stopped, and the angle of the body support device 34 relative to the chassis 20 is fixed. It should also be understood that when the overall tilt actuator 139 operates to pivot the parallel linkage assembly 36 to a state approximately parallel to the chassis 20, the two first fixing frame pivots 46 are re-pivoted with the two open support ends 117.

The inclined body support device 34 shown in Figure 10 can enable most of the patient's body to be supported by the back plate 175, the seat plate 171 and the lower plate 177, and the patient sitting on the body support device 34 in the chair mode can maintain a sitting posture more easily.

The body support device 34 shown in FIGS. 3 to 10 is assembled into a state of maximum size. Such a body support device 34 is suitable for tall adults, but the body support device 34 of the present invention can also be assembled into a smaller size (for example, a size that matches the height of a child). Referring to FIG. 11, after removing the four positioning pins 67, the upper frame 74, the back panel 175, the table support frame 88, the table 173, the two second movable rods 68 of the movable assembly 60, the second fixed frame 52 of the fixed assembly 38, and the partial tilt actuator 155 can be displaced together along the extension direction of the first fixed frame 40 and the two first movable rods 62, so that the upper frame 74 and the back panel 175 are spaced apart from the lower frame 90 and the lower panel 177. The vertical distance can be changed. After the upper frame 74 is adjusted to an appropriate vertical distance with the lower frame 90, the four positioning pins 67 are reinserted into each of the fixing parts 47 and the corresponding adjusting parts 57 or each of the positioning parts 66 and the corresponding adjusting parts 72, so that the positions of the back panel 175, the table support frame 88, the table top 173, the two second movable rods 68 of the movable assembly 60, the second fixed frame 52 of the fixed assembly 38 and the local tilt actuator 155 are positioned.

The pedal bracket 97 and the footrest 179 can also be adjusted, that is, the coupling end 98 of the pedal bracket 97 can be selectively coupled with the four height adjustment holes 96 at different positions. As shown in FIG. 11 , the body support device 34 is assembled into a minimum size to suit patients of shorter stature (such as children).

From the technical features and related operations of the positioning aid 10 of the present invention, it can be known that the positioning aid 10 of the present invention includes at least the following advantages. For example, the body support device 34 can be adjusted to a flat mode and a chair mode, and can be used to support the patient to maintain a standing position, a sitting position, and a lying position, and has good versatility. The body support device 34 can pivot and change the vertical distance between the body support device 34 and the chassis 20, and the body support device 34 can be moved to a position that is about the same height as the bed or the chair, so that the patient and/or the patient's assistant will be more labor-saving and convenient to get on and off the positioning aid 10.

The local tilt actuator 155 cooperates with the upper frame 74, the lower frame 90 and the parallel linkage group 36 to adjust the tilt angle of the upper frame 74 and the lower frame 90 relative to the parallel linkage group 36, so that the body support device 34 is more easily adjusted to an angle comfortable for the patient.

The overall tilt drive 139 cooperates with the supine drive 118 to support the overall pivoting of the body support device 34 and position the body support device 34 at a tilt angle relative to the chassis 20. When the body support device 34 is in a chair mode and is tilted overall relative to the chassis 20, the patient can maintain a sitting position with less effort.

The supine driving device 118 cooperates with the supporting member 111 to support the body supporting device 34 in the flat mode to pivot between perpendicular to the chassis 20 and parallel to the chassis 20, so that the patient can easily move to lie flat on the positioning aid 10 when the body supporting device 34 is in a horizontal state, and then pivot the body supporting device 34 to a state approximately perpendicular to the chassis 20, so that the patient can conveniently change from a lying position to a standing position.

The second fixing frame 52 of the fixing assembly 38 can be displaced relative to the first fixing frame 40, and the two second movable rods 68 of the movable assembly 60 can be displaced relative to the two first movable rods 62, so as to adjust the distance between the upper frame 74 and the lower frame 90, so that the body support device 34 can be suitable for patients of various heights.

The basic teachings of the present invention have been described, and many extensions and variations will be obvious to those with ordinary skills in this field. For example, although the drawings and instructions of the present invention illustrate that the body support device 34 in the flat mode and horizontal state is operated as a chair mode, the body support device 34 can also be operated as a chair mode in the flat mode and vertical state through the operation of the local tilt drive 155. In this case, the variation of the substantially same technical features but the change of the operation sequence should fall within the scope of protection of the present invention.

Since the invention disclosed in the specification can be implemented in other specific forms without departing from the spirit or general characteristics of the invention, and some of these specific forms have been pointed out, the embodiments disclosed in the specification should be regarded as illustrative rather than restrictive. The scope of the invention is defined by the scope of the attached patent application, not by the above description, and all changes that fall within the equivalent meaning and scope of the patent application will still be included in its scope.

10: Positioning aid 20: Chassis 22: Side rod 24: Front connecting rod 26: Rear connecting rod 28: Side pivot 30: Front pivot 32: Rear pivot 34: Body support device 36: Parallel connecting rod assembly 38: Fixing assembly 40: First fixing frame 42: First fixing frame connecting rod 44; Second fixing frame connecting rod 46: First fixing frame pivot 47: Fixing part 48: Second fixing frame pivot 50: Third fixing frame pivot 52: Second fixing frame 54: Second fixing frame connecting rod 56: Second fixing frame pivot 57: Adjustment part 58: Fixing frame connecting part 60: Movable assembly 62: First movable rod 64: First movable rod pivot 66: Positioning part 67: Positioning pin 68: Second movable rod 70: Second movable rod pivot 72: Adjustment part 74: Upper frame 76: Upper frame connecting rod 78: First upper frame pivot 80: Second upper frame pivot 82: Third upper frame pivot 84: Sleeve tube 86: Handle 88: Table support frame 90: Lower frame 92: First lower frame pivot 94: Second lower frame pivot 96: Height adjustment hole 97: Pedal bracket 98: Junction end 111: Support member 113: Support connecting rod 115: hinge end 117: open support end 118: supine actuator 119: first hinge 130: first supine hinge 132: second supine hinge 131: second hinge 133: lifting actuator 135: first lifting hinge 137: second lifting hinge 139: overall tilt actuator 151: first overall tilt hinge 153: second overall tilt hinge 155: partial tilt actuator 157: first partial tilt hinge 159: second partial tilt hinge 171: seat plate 175: back plate 177: lower plate 179: Footrest

Figure 1 is an exploded view of the positioning aid.

FIG. 2 is an exploded view of a body support device of the positioning assistive device.

FIG. 3 is a three-dimensional assembly diagram of the positioning aid.

FIG. 4 is a side view of the positioning aid.

FIG. 5 is a diagram showing the body support device of the positioning aid in a pivotally tilted state.

Figure 6 is a state diagram in which the body support device is adjusted into a flat mode and the hinge is turned horizontally and located in the highest position.

Figure 7 is a state diagram in which the body support device pivots to a horizontal position and is in the lowest position in the flat mode.

Figure 8 is a diagram showing the body support device adjusted into a chair mode and assembled into its maximum size.

Figure 9 is a diagram showing an upper frame and a lower frame of the body support device in the chair mode after being tilted.

Figure 10 is a diagram showing the state of the body support device in the seat mode after being fully tilted.

Figure 11 is a diagram showing the body support device in the seat mode when assembled into the smallest size.

All drawings are for the purpose of explaining basic teachings only. The number, position, relationship, and extension of the dimensions of the components constituting the illustrative embodiments will be described in the drawings or will be within the skill of the art after reading and understanding the following description. In addition, the exact dimensions and dimensional ratios to meet specific power, weight, strength, and similar requirements will also be within the skill of the art after reading and understanding the following description.

The same or similar elements are indicated by the same reference numerals in different drawings. Please also understand that terms such as "first", "second", "front", "rear", "height", "end", "side", "horizontal", "vertical", etc. and similar terms in the text are only used to facilitate the viewer to refer to the structure in the drawings and are only used to help describe the embodiments.

10: Positioning aids

20: Chassis

22: Sidebar

24:Front connecting rod

26: Rear connecting rod

28: Side

30: Frontal

32: Rear Front

34: Body support device

46: First fixed frame hinge

48: Second fixed frame hinge

50: Third fixed frame hinge

52: Second fixed frame

54: Second fixed frame connecting rod

58: Fixed frame connection part

62: First active pole

64: First movable rod hinge

68: Second activity bar

74: Upper frame

76: Upper frame connecting rod

82: Third upper frame hinge

84: Socket pipe

86: Grip

88: Table support frame

90: Lower frame

97: Pedal bracket

98: Binding end

111: Support parts

113: Support connecting rod

115: Hub terminal

117: Open support end

118: Supine drive

119: First Branch

130: First supine position

131: Second Branch

132: Second supine position

133: Lifting drive

135: First lifting arm

137: Second lifting arm

139: Overall tilt drive

151: First overall tilting hinge

153: Second overall tilt hinge

155: Partial tilt drive

157: First partial tilt hinge

159: Second partial tilt hinge

171: Seat plate

173: Table board

175: Back panel

177: Lower board

179: Footrest

Claims (10)

A positioning aid comprises: a chassis; a support member pivotally connected to the chassis, the support member comprising two open support ends; a lifting actuator pivotally connected to the chassis and the support member, the lifting actuator actuating the support member to pivotally change the distance between each open support end and the chassis, and when the lifting actuator is not actuated, the support member cannot pivot; a body support device comprising a fixing assembly The fixing assembly includes two first fixing frame hinges detachably hinged to the two open support ends, the body support device further includes an upper frame hinged to the fixing assembly and a lower frame hinged to the fixing assembly, the fixing assembly is located between the upper frame and the lower frame, and the body support device is configured to be adjustable into a flat mode and a chair mode. When the body support device is in the flat mode, , the upper frame, the lower frame and the fixing assembly are parallel to each other, when the body support device is adjusted to the chair mode, the upper frame and the lower frame are parallel to each other, the angle between the upper frame and the lower frame relative to the fixing assembly is between a right angle and a blunt angle, and the angle between the fixing assembly and the chassis is between parallel and a sharp angle, when the body support device is in the flat mode and the fixing assembly is parallel to the chassis, When the chassis are substantially parallel to each other, the support member pivots to change the vertical distance between the fixed assembly and the chassis; and a supine actuator is pivoted between the chassis and the fixed assembly. When the body support device is in the flat mode, the supine actuator is actuated to cause the fixed assembly to pivot between parallelism and perpendicularity between the fixed assembly and the chassis with the two first fixed frame pivots as the axis. The positioning aid as described in item 1 of the patent application further comprises: a movable assembly pivotally connected between the upper frame and the lower frame, the movable assembly is spaced apart from the fixed assembly in parallel, when the movable assembly remains stationary, the upper frame and the lower frame are fixed, when the movable assembly moves relative to the fixed assembly, the upper frame and the lower frame pivot relative to the fixed assembly. The positioning aid as described in item 2 of the patent application further comprises: a partial tilt actuator, pivotally connected to the upper frame and the fixed assembly, when the partial tilt actuator remains inactive, the angle between the upper frame and the fixed assembly is fixed, so that the movable assembly cannot move and the lower frame cannot pivot, when the partial tilt actuator is actuated, the upper frame pivots relative to the fixed assembly, causing the movable assembly to move and linking the lower frame to pivot synchronously; an overall tilt actuator, pivotally arranged between the fixed assembly and the support, the pivot of the overall tilt actuator and the fixed assembly is located at the same axis of the two first fixed frame pivots. The body support device is arranged so that when the body support device rotates with the two first fixed frame pivots as the axis, the overall tilt drive remains stationary. When the overall tilt drive remains inactive, the fixed assembly cannot rotate with the pivot of the supine drive as the axis. When the fixed assembly is substantially parallel to the chassis and the overall tilt drive remains in motion, the fixed assembly, the upper frame and the lower frame rotate together with the pivot of the supine drive as the axis so that the two open support ends are separated from the fixed assembly. When the fixed assembly is perpendicular to the chassis, the overall tilt drive cannot be actuated and the two open support ends cannot be separated from the fixed assembly. The positioning aid as described in item 3 of the patent application, wherein the fixing assembly includes a first fixing frame and a second fixing frame, the first fixing frame includes a fixing portion, the second fixing frame includes a plurality of adjusting portions, the first fixing frame and the second fixing frame are movably sleeved, when the fixing portion and each of the adjusting portions are not fixed, the second fixing frame allows for telescopic displacement relative to the first fixing frame, when the fixing portion is fixed to one of the adjusting portions, the second fixing frame cannot be displaced relative to the first fixing frame, the movable assembly includes a first movable rod and a second movable rod, the first movable rod includes a positioning portion, the second movable rod includes a plurality of adjusting portions, the first movable rod and the second movable rod are movably sleeved, when the positioning portion and each of the adjusting portions are not fixed, the second movable rod allows for telescopic displacement relative to the first movable rod, The movable rod is extended and displaced. When the positioning portion is fixed to one of the adjustment portions, the second movable rod cannot be displaced relative to the first movable rod. When the second fixing frame and the second movable rod are displaced together, the position of the upper frame is changed. The local tilt actuator includes a first local tilt hinge and a second local tilt hinge. The first local tilt hinge is hinged to the upper frame, and the second local tilt hinge is hinged to the fixing portion. The second fixing frame of the assembly is pivoted, the supine actuator includes a first supine hinge and a second supine hinge, the first supine hinge is pivoted with the chassis, the second supine hinge is pivoted with the first fixing frame, the integral tilt actuator includes a first integral tilt hinge and a second integral tilt hinge, the first integral tilt hinge is pivoted with the support member, and the second integral tilt hinge is pivoted with the first fixing frame. The positioning aid as described in item 2 of the patent application, wherein the fixing assembly includes a first fixing frame and a second fixing frame, the first fixing frame includes a fixing portion, the second fixing frame includes a plurality of adjusting portions, the first fixing frame and the second fixing frame are movably connected, when the fixing portion and each of the adjusting portions are not fixed, the second fixing frame allows for telescopic displacement relative to the first fixing frame, when the fixing portion is fixed to one of the adjusting portions, the second fixing frame cannot be displaced relative to the first fixing frame, and the movable assembly includes A first movable rod and a second movable rod, the first movable rod includes a positioning part, the second movable rod includes a plurality of adjustment parts, the first movable rod and the second movable rod are movably sleeved, when the positioning part and each of the adjustment parts are not fixed, the second movable frame allows for telescopic displacement relative to the first movable rod, when the positioning part and one of the adjustment parts are fixed, the second movable rod cannot be displaced relative to the first movable rod, and when the second fixed frame and the second movable rod are displaced together, the position of the upper frame is changed. A positioning aid comprises: a chassis; a fixed assembly, comprising two first fixed frame hinges and two second fixed frame hinges separated from the two first fixed frame hinges; a support member, pivoted with the chassis and each of the first fixed frame hinges; an upper frame, pivoted with each of the second fixed frame hinges; a lower frame, pivoted with each of the first fixed frame hinges; a movable assembly, pivoted with the upper frame and the lower frame; a lifting actuator, pivoted with the support member and the chassis, the lifting actuator actuating to cause the support member to pivot so that the fixed assembly, the upper frame, the lower frame and the movable assembly are displaced together; a local tilt actuator, pivoted with the upper frame The upper frame and the fixed assembly are pivoted, when the partial tilt actuator is stationary, the upper frame, the lower frame and the movable assembly cannot move, when the partial tilt actuator is actuated, the upper frame pivots with the pivots of the second fixed frame as the axis and links the movable assembly to push the lower frame to pivot together; and a supine actuator, pivoted with the chassis and the fixed assembly, when the supine actuator is stationary, the angle between the fixed assembly and the movable assembly relative to the chassis is fixed, when the supine actuator is actuated, the fixed assembly, the movable assembly, the upper frame and the lower frame pivot together with the pivots of the first fixed frame as the axis relative to the chassis. The positioning aid as described in item 6 of the patent application, wherein the fixing assembly includes a first fixing frame and a second fixing frame, the first fixing frame includes a fixing portion, each of the first fixing frame pivots is located at the end of the first fixing frame, the second fixing frame includes a plurality of adjustment portions, each of the second fixing frame pivots is located at the end of the second fixing frame, the first fixing frame and the second fixing frame are movably connected, the movable assembly includes a first movable rod and a second movable rod, the first movable rod includes a positioning portion, the The second movable rod includes a plurality of adjustment parts. The first movable rod and the second movable rod are movably sleeved. When the fixed part and each of the adjustment parts are not fixed and the positioning part and each of the adjustment parts are not fixed, the second movable rod and the upper frame are allowed to change their positions relative to the first fixed frame and the first movable rod. When the fixed part and each of the adjustment parts are fixed and the positioning part and each of the adjustment parts are fixed, the second movable rod and the upper frame cannot change their positions relative to the first fixed frame and the first movable rod. The positioning aid as described in item 7 of the patent application further comprises: a pedal bracket, the lower frame comprises a plurality of height adjustment holes, each of the height adjustment holes is arranged in a straight line along an extension direction parallel to the upper frame, the pedal bracket comprises a coupling end, the coupling end can be selectively coupled with at least one of the height adjustment holes, when the coupling end is coupled with the height adjustment holes at different positions, the distance between the pedal bracket and the fixing assembly changes. A positioning aid comprises: a chassis; a body support device, the body support device being constructed to be operable to provide a flat mode for a patient to lie flat and a chair mode for a patient to sit; a support member pivoted with the chassis and the body support device; a supine drive pivoted with the chassis and the body support device; and a lifting drive pivoted with the support member and the chassis, the lifting drive operating to pivot the support member to cause the body support device to change height, and the supine drive operating to pivot the body support device in the flat mode relative to the support member between perpendicular and parallel to the chassis. The positioning aid as described in item 9 of the patent application further includes: an integral tilting actuator pivotally connected to the support member and the body support device. When the integral tilting actuator is in operation, the body support device pivots using the pivot with the supine actuator as an axis and separates from the support member, so that the body support device in the chair mode tilts.

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