CN117503546A

CN117503546A - Medical rehabilitation bed capable of assisting limb movement rehabilitation

Info

Publication number: CN117503546A
Application number: CN202311565874.7A
Authority: CN
Inventors: 郭音; 柳筱雨; 李文杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-11-22
Filing date: 2023-11-22
Publication date: 2024-02-06

Abstract

The invention provides a medical rehabilitation bed capable of assisting limb movement rehabilitation, which comprises a support frame, wherein the support frame is provided with a bed body, the bed body is provided with a limb exercise device and a chest fixing device, the limb exercise device is provided with a transmission assembly, the limb exercise device comprises a thigh fixing part and a shank fixing part, the transmission assembly comprises a thigh transmission assembly and a shank transmission assembly, the thigh transmission assembly is arranged in the thigh fixing part, and the shank transmission assembly is arranged in the shank fixing part.

Description

Medical rehabilitation bed capable of assisting limb movement rehabilitation

Technical Field

The invention relates to the technical field of medical rehabilitation equipment, in particular to a medical rehabilitation bed capable of assisting limb movement rehabilitation.

Background

The medical rehabilitation bed is a device with complete functions, and can meet the nursing requirements of patients. The utility model provides a medical rehabilitation bed, it provides comprehensive rehabilitation support for the patient through multiple position adjustment, press sore prevention, safety protection, convenient nursing and patient travelling comfort etc. function, current medical rehabilitation bed is only used as patient's nursing equipment, the patient is lain on the nursing bed for a long time and is treated, until the health obtains recovered, in order to make the patient can be recovered sooner, often need cooperate certain motion in the recovery period, make patient's physical power obtain certain degree to resume, but the patient is comparatively weak in this recovery period, the dependence to medical rehabilitation bed is great, patient also is not suitable for going to carry out rehabilitation training in special place simultaneously, so just need the medical rehabilitation bed to have certain supplementary exercise function, make the patient recover physical power through taking exercise limbs.

Based on the above-mentioned circumstances, in the prior art, patent publication No. CN112451249B discloses a medical bed with an auxiliary rehabilitation device, the medical bed is provided with a bearing plate, a buffer structure, a mounting shell, a leg auxiliary structure, an adjusting structure, and a body supporting plate, the buffer structure is mounted at the bottom end of the bearing plate, the upper end of the bearing plate is movably connected with the mounting shell, one end inside the mounting shell is provided with the leg auxiliary structure, the other end inside the mounting shell is provided with the adjusting structure, the body supporting plate is mounted at the middle position of the upper end of the mounting shell, the medical bed drives a rotating rod to rotate through a second driving motor, a sliding block on the surface of the rotating rod drives adjusting rods at both ends to move, so that the adjusting rods drive the leg adjusting plates to move, and then both sides of the leg adjusting plates rotate with one side of the upper ends of the body supporting plate and the mounting shell as a center, therefore, the leg adjusting plate drives the legs of the patient to carry out auxiliary rehabilitation work, thereby reducing the labor intensity of medical staff and improving the auxiliary effect of the medical staff, but the medical bed has obvious defects in the actual use process that the medical bed is suitable for the patient to use in the initial stage of exercise, the adjusting rod actively drives the leg adjusting plate to move, the legs of the patient are in the passive state, the condition of non-ideal exercise effect possibly occurs in the exercise process, the passive exercise has slightly insufficient recovery speed and quality of the body of the patient, meanwhile, the passive exercise also increases the dependence of the patient on the passive exercise device of the medical bed, so that the patient should be cultivated for active exercise consciousness when the patient carries out limb activity rehabilitation, and the rehabilitation medical bed should be in the passive state when exercising, so that the exercise of the patient is dominant, the patient is in an active state during exercise.

Disclosure of Invention

Aiming at the technical defects in the background art, the invention provides a medical rehabilitation bed capable of assisting limb movement rehabilitation, which can enable a patient to be in an active state during exercise, has a more sufficient exercise effect and is more beneficial to limb rehabilitation of the patient, and in order to further solve the technical problems and meet the actual requirements, the specific technical scheme is as follows:

the utility model provides a can provide recovered medical rehabilitation bed of auxiliary limb activity, includes the support frame, the support frame is equipped with can turn over the lathe bed of rolling over, the lathe bed links to each other with the support frame activity, the lathe bed is equipped with fixed connection's limbs exercise device and chest fixing device, chest fixing device is used for preventing that the health sinks, limbs exercise device is equipped with fixed connection's drive assembly, limbs exercise device includes thigh fixed part and shank fixed part, thigh fixed part and shank fixed part activity link to each other, drive assembly includes thigh drive assembly, shank drive assembly and cotton rope, thigh drive assembly sets up inside thigh fixed part, shank drive assembly sets up inside shank fixed part, connect through the cotton rope between thigh drive assembly and the shank drive assembly.

Further, the support frame includes base and supporting component, the base links to each other with the supporting component activity, the base below is equipped with a plurality of removal wheels the removal wheel sets up along base length direction symmetry.

Further, the lathe bed includes the bed body, curb plate and damping hinge, the curb plate set up in the both sides with the bed body along bed body length direction symmetry, link to each other through the damping hinge activity between the bed body and the curb plate, the bed body includes first bed body and second bed body, and first bed body and second bed body activity hinge, the curb plate includes first curb plate and second curb plate, the second curb plate is equipped with swing joint's handrail.

Further, the chest fixing device is a fixing belt, fixing nails for connecting the fixing belt and the lathe bed are arranged at two ends of the fixing belt, and fixing buckles fixedly connected with the fixing belt are arranged between the fixing nails.

Further, the limb exercise device further comprises a fixed head, the fixed head is movably hinged with the thigh fixing part, the fixed head is provided with a fixedly connected mounting strip, and the limb exercise device is fixedly connected with the bed body through the mounting strip.

Further, the thigh fixed part comprises a thigh fixed plate and a thigh strap fixedly connected with the thigh fixed plate, the shank fixed part comprises a shank fixed plate and a shank strap fixedly connected with the shank fixed part, and the thigh strap and the shank fixed part are arranged on the surfaces of one opposite sides of the thigh fixed plate and the shank fixed plate.

Further, thigh drive assembly comprises thigh transmission, push rod, first stranded conductor device and second stranded conductor device, thigh transmission's upper end and push rod are fixed to be linked to each other, thigh transmission's lower extreme swing joint first stranded conductor device and second stranded conductor device respectively, the push rod sets up in thigh fixed part and leans on the external position of curb plate, shank transmission assembly includes third stranded conductor device, fourth stranded conductor device and take-up pulley, the take-up pulley sets up in shank fixed part lean on bed body one side external position, the take-up pulley is located between first stranded conductor device and the fourth stranded conductor device.

The invention has the beneficial effects that:

according to the invention, the inclination angle of the medical rehabilitation bed is adjustable through the cooperation rotation of the support frame and the bed body, a patient leans against the medical rehabilitation bed, the chest of the patient is fixed on the inclined medical rehabilitation bed through the fixing belt, the patient is prevented from falling down during exercise, the medical rehabilitation bed is matched with the fixing bandages at different inclination angles, the lower limbs of the patient are loaded with different weights, the thigh transmission assembly and the shank transmission assembly are driven to operate in a linkage manner through the hand-pulled push rod, the limb exercise device can simulate the action of the lower limb walking state, so that the lower limb is driven to walk on the ground, the lower limb is assisted to exercise, the lower limb is adjusted to bear weight in cooperation with the inclination angle of the medical rehabilitation bed, the patient can exercise the lower limb gradually, the upper limb is pulled back and forth while the push rod is pulled back to exercise, the bed board at two sides of the medical rehabilitation bed can be folded upwards, the limb exercise device can be protected by the thigh and the shank bandages, the patient is improved, the following performance of the limb exercise device is better for the limb exercise device, and the rehabilitation exercise device is beneficial to the rehabilitation in the early stage of the patient.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the present invention.

Fig. 3 is a schematic view of the body exercise device and the bed structure of the present invention.

Fig. 4 is a schematic diagram of a limb exercise apparatus according to the present invention.

Fig. 5 is a schematic view of a transmission assembly according to the present invention.

Reference numerals: the support frame 1, the base 11, the longitudinal beam 111, the cross beam 112, the support assembly 12, the first hydraulic expansion link 121, the second hydraulic expansion link 122, the first link 123, the second link 124, the movable wheel 13, the limb exercise device 3, the fixed head 31, the mounting bar 311, the thigh fixing part 32, the thigh fixing plate 321, the thigh strap 322, the shank fixing part 33, the shank fixing plate 331, the shank strap 332, the transmission assembly 5, the thigh transmission assembly 51, the push rod 511, the thigh transmission device 512, the first bevel gear 5121, the second bevel gear 5122, the first transmission shaft 5123, the third bevel gear 5124, the fourth bevel gear 5125, the first stranding device 513, the first stranding drum 5131, the first rotating shaft 5132, the second stranding device 514, the second stranding drum 5141, the second rotating shaft 5142, the lower leg driving assembly 52, the third stranding device 521, the third stranding drum 5211, the third rotating shaft 5212, the fourth stranding device 522, the fourth stranding drum 5221, the fourth rotating shaft 5222, the tensioning wheel 523, the string 53, the bed 2, the bed 21, the first bed 211, the second bed 212, the side plate 22, the first side plate 221, the second side plate 222, the armrest 23, the damping hinge 24, the chest fixation device 4, the fixation strap 41, the fixation nail 42, the fixation clasp 43.

Detailed Description

As shown in fig. 1 to 5, the present invention provides a technical solution: the utility model provides a can provide medical rehabilitation bed that supplementary limbs activity was recovered, includes support frame 1, support frame 1 is equipped with can turn over lathe bed 2, lathe bed 2 links to each other with support frame 1 activity, lathe bed 2 is equipped with fixed connection's limb exercise device 3 and chest fixing device 4, chest fixing device 4 is used for preventing the health sinking, limb exercise device 3 is equipped with fixed connection's drive assembly 5, limb exercise device 3 includes thigh fixed part 32 and shank fixed part 33, thigh fixed part 32 and shank fixed part 33 activity link to each other, drive assembly 5 includes thigh drive assembly 51, shank drive assembly 52 and cotton rope 53, thigh drive assembly 51 sets up inside thigh fixed part 32, shank drive assembly 52 sets up inside shank fixed part 33, be connected through cotton rope 53 between thigh drive assembly 51 and the shank drive assembly 52.

Through support frame 1 and lathe bed 2 cooperation rotation, make the inclination of medical rehabilitation bed adjustable, the patient leans on the medical rehabilitation bed to one side, patient chest passes through fixed band 41 to be fixed on the medical rehabilitation bed of slope, avoid patient's health whereabouts when taking exercise, the cooperation of different inclination of medical rehabilitation bed and fixed band 41 can let patient's low limbs load different weight, patient adjustable medical rehabilitation bed gradient and fixed band 41, make the weight that low limbs load is different, be equipped with the push rod 511 that is used for the reciprocal pulling of upper limbs exercise in the thigh drive assembly 51, push rod 511 links to each other with upper limbs drive assembly 51 is fixed, through pulling push rod 511, push rod 511 drives thigh drive assembly 51 and shank drive assembly 52 coordinated operation, make limbs exercise device 3 can simulate the action of low limbs walking state, thereby supplementary drive low limbs walk subaerial, thereby take exercise to the low limbs, the inclination of medical rehabilitation bed is cooperated, patient can take exercise the low limbs progressively, reciprocating pulling 511 can make the upper limbs initiative to stretch the push rod to take exercise to the upper limbs.

As a preferred embodiment of the present invention, as shown in fig. 1 and 2, the supporting frame 1 includes a base 11 and a supporting component 12, the base 11 is movably connected with the supporting component 12, a plurality of moving wheels 13 are disposed below the base 11, the moving wheels 13 are symmetrically disposed along the length direction of the base 11, the base 11 is formed by interlacing two longitudinal beams 111 and two cross beams 112 to form a frame of the base 11, the supporting component 12 includes a first hydraulic telescopic rod 121, a second hydraulic telescopic rod 122, a first connecting piece 123 and a second connecting piece 124, the first hydraulic telescopic rod 121 is movably hinged with a cross beam 112 of the base 11 through the first connecting piece 123, the second hydraulic telescopic rod 122 is movably hinged with another cross beam 112 of the base 11 through the second connecting piece 124, and the moving wheels 13 are welded on the longitudinal beams 111 of the base 11, so as to facilitate the movement of the medical rehabilitation bed.

As another preferred embodiment of the present invention, as shown in fig. 1 and 2, the bed 2 includes a bed 21, side plates 22 and damping hinges 24, the side plates 22 are symmetrically disposed on two sides of the bed 21 along the length direction of the bed 21, the bed 21 and the side plates 22 are movably connected by the damping hinges 24, the bed 21 includes a first bed 211 and a second bed 212, the first bed 211 and the second bed 212 are movably hinged, the side plates 22 include a first side plate 221 and a second side plate 222, and the second side plate 222 is provided with a movably connected armrest 23.

The first bed 211 is hinged to the first hydraulic telescopic rod 121 via the first connecting member 123, the second bed 212 is hinged to the second hydraulic telescopic rod 122 via the second connecting member 124, when the bed 21 is supported by the support assembly 12 in the inclined state, the first hydraulic telescopic rod 121 hinged to the first bed 211 is in the contracted state, and when the bed 21 is supported by the support assembly 12 in the horizontal state, the second hydraulic telescopic rod 122 hinged to the second bed 212 is in the extended state, and when the bed 21 is supported by the support assembly 12 in the horizontal state, the first hydraulic telescopic rod 121 hinged to the first bed 211 is in the extended state, and the second hydraulic telescopic rod 122 hinged to the second bed 212 is in the contracted state.

The first side plate 221 and the second side plate 222 are movably connected with the bed body 21 through the damping hinge 24, the damping hinge 24 is a commercially available damping hinge 24 capable of being folded by 90 degrees, the first side plate 221 and the second side plate 222 are folded and are perpendicular to the bed body 21 to form a protective baffle, a patient can be protected when an emergency occurs in a medical rehabilitation bed, the first bed body 211 and the second bed body 212 are movably hinged, and when the bed body 21 is in an inclined state, the first hydraulic telescopic rod 121 pulls the first bed body 211, so that the first bed body 211 can be separated by the limb exercise device 3, and a sufficient operation space is reserved for bending and stretching of the limb exercise device 3.

As another preferred embodiment of the present invention, as shown in fig. 1 and 2, the chest fixing device 4 is a fixing belt 41, fixing nails 42 for connecting the fixing belt 41 and the bed 2 are disposed at two ends of the fixing belt 41, fixing buckles 43 fixedly connected with the fixing belt 41 are disposed between the fixing nails 42, the chest fixing device 4 is used for avoiding the situation that the patient slides down due to the inclination of the body during exercise, the chest fixing device 4 fixes the chest and the upper half of the patient on the first bed 211, the weight of the body is transferred to the first bed 211 to reduce the weight load of the lower limb of the patient, when the chest fixing device is used, the fixing buckles 43 are firstly opened, the fixing belt 41 is separated from the fixing buckles 43, then the patient lies on the bed 21, the back of the patient clings to the first bed 211, the fixing belt 41 passes through the chest position of the patient, at the moment, the fixing belt 41 is positioned above the chest, the lower limb of the patient is positioned below the upper limb, then the chest and the upper half of the patient is fixed on the first bed 211 by the fixing buckles 43, the chest and the patient can be erected from the two sides of the patient by the side plates 23 when the patient wants to incline, and the patient can be erected from the two side plates 23 by means of the side plates of the patient can be erected by the side rails when the patient is inclined from the side plates 21.

As another preferred embodiment of the present invention, as shown in fig. 1 and 4, the limb exercise device 3 further includes a fixing head 31, the fixing head 31 is movably hinged to the thigh fixing part 32, the fixing head 31 is provided with a fixing bar 311 fixedly connected with the bed 21, the limb exercise device 3 is fixedly connected with the bed 21 through the fixing bar 311, one end of the fixing bar 311 is welded at a side edge of the fixing head 31, the other end is fixed at a lower end edge of the first bed 211 through a bolt, and the fixing head 31 is movably hinged to the thigh fixing part 32, so that the thigh fixing part 32 can freely rotate in the fixing head 31.

As another preferred embodiment of the present invention, as shown in fig. 4, the thigh fixing part 32 includes a thigh fixing plate 321 and a thigh strap 322 fixedly connected with the thigh fixing plate 321, the shank fixing part 33 includes a shank fixing plate 331 and a shank strap 332 fixedly connected with the shank fixing part 33, the thigh strap 322 and the shank fixing part 33 are disposed on a surface of a side opposite to the thigh fixing plate 321 and the shank fixing plate 331, the thigh fixing plate 321 and the shank fixing plate 331 are of a hollow structure, the side walls of the thigh fixing plate 321 and the shank fixing plate 331 are movably hinged, so that the thigh fixing plate 321 and the shank fixing plate 331 can freely rotate, the limb exercise device 3 is more flexible, the shank strap 332 and the thigh strap 322 can use a velcro which is easy to attach, the limb exercise device 3 can be conveniently worn by the thigh strap 322 and the shank strap 332, the limb exercise device 3 can follow the limb of the patient, and the limb exercise device 3 can be better recovered by the rehabilitation of the patient, while improving the comfort of the patient.

As another preferred embodiment of the present invention, as shown in fig. 5, the thigh transmission assembly 51 is composed of a thigh transmission device 512, a push rod 511, a first stranding device 513 and a second stranding device 514, the upper end of the thigh transmission device 512 is fixedly connected with the push rod 511, the lower end of the thigh transmission device 512 is movably connected with the first stranding device 513 and the second stranding device 514, the push rod 511 is disposed at the outer position of the thigh fixing portion 32 near the side plate 22, the shank transmission assembly 52 includes a third stranding device 521, a fourth stranding device 522 and a tensioning wheel 523, the tensioning wheel 523 is disposed at the outer position of the shank fixing portion 33 near the bed 21, and the tensioning wheel 523 is disposed between the first stranding device 513 and the fourth stranding device 522.

The thigh gear assembly 51 is disposed in the thigh fixing plate 321, the shank gear assembly 52 is disposed in the shank fixing plate 331, the main structure of the thigh gear assembly 51 is composed of bevel gears, one end of the push rod 511 of the thigh gear assembly 51 is disposed at the side of the thigh fixing plate 321, and the other end is welded to the large end surface of the first bevel gear 5121.

When the limb exercise device 3 is used, the push rod 511 is pulled clockwise through upper limb pulling, the push rod 511 drives the first bevel gear 5121 to rotate, the first bevel gear 5121 drives the second bevel gear 5122 to rotate in a meshed manner, the second bevel gear 5122 drives the third bevel gear 5124 to rotate through the first transmission shaft 5123, the third bevel gear 5124 drives the two fourth bevel gears 5125 with opposite small ends to rotate reversely, the first wire twisting device 513 and the second wire twisting device 514 are coaxially arranged with the two fourth bevel gears 5125, the two reversely rotated fourth bevel gears 5125 respectively drive the first wire twisting disc 5131 and the first rotating shaft 5132 of the first wire twisting device 513 to rotate clockwise, the second wire twisting disc 5141 and the second rotating shaft 5142 of the second wire twisting device 514 rotate anticlockwise, the first wire twisting device 513 and the third wire twisting device 521 are connected through a wire twisting device 53, the second wire twisting device 514 and the fourth wire twisting device 522 are also connected through a wire twisting device 53, but it is also necessary that the fourth wire twisting device 522 and the third wire twisting device 521 are unpowered devices through the tension pulley 523 between the second wire twisting device 514 and the fourth wire twisting device 522, and are fixedly connected with the shank fixing plate 331, do not rotate with the shank fixing plate 331, only are used for fixing the end part of one end of the wire rope 53, the third wire twisting disc 5211 is welded on the surface of the third rotating shaft 5212, the fourth wire twisting disc 5221 is welded on the surface of the fourth rotating shaft 5222, the third rotating shaft 5212 and the fourth rotating shaft 5222 are welded inside the shank fixing plate 331, and the wire rope 53 between the first wire twisting device 513 and the third wire twisting device 521 is contracted and tightened through the reverse rotation of the fourth bevel gear 5125, the wire rope 53 between the second wire twisting device 514 and the fourth wire twisting device 522 is relaxed, the limb exercise device 3 simulates the action of bending legs of the lower limb of the human body, otherwise, the push rod 511 is pulled by the upper limb anticlockwise, the string 53 between the first stranding device 513 and the third stranding device 521 is loosened and relaxed, the string 53 between the second stranding device 514 and the fourth stranding device 522 is contracted and tightened, so that the limb exercise device 3 simulates the lower limb of the human body to perform leg stretching, and the limb exercise device 3 simulates the lower limb of the human body to perform walking by pushing the push rod 511 back and forth, so that the limb exercise device 3 drives the lower limb of the patient to perform auxiliary exercise, and meanwhile, when pushing the push rod 511 back and forth, the upper limb also performs bending and stretching motions, and the upper limb of the patient can also perform auxiliary exercise.

In summary, the upper limb and the lower limb are linked through the transmission device 5 and the limb exercise device 3, the upper limb and the lower limb can be exercised at the same time, the bending and stretching movement of the upper limb pulls the push rod 511 to rotate reciprocally, the push rod 511 drives the transmission device 5 to operate, the thigh transmission assembly 51 and the shank transmission assembly 52 of the transmission device 5 operate in a linkage manner, the limb exercise device 3 is driven to move, and the limb exercise device 3 drives the lower limb to perform auxiliary exercise.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims

1. Medical rehabilitation bed capable of providing auxiliary limb activity rehabilitation, which comprises a support frame (1), and is characterized in that: support frame (1) is equipped with lathe bed (2) that can turn over, lathe bed (2) link to each other with support frame (1) activity, lathe bed (2) are equipped with fixed connection's limbs exercise device (3) and chest fixing device (4), chest fixing device (4) are used for preventing that the health from sinking, limbs exercise device (3) are equipped with fixed connection's drive assembly (5), limbs exercise device (3) include thigh fixed part (32) and shank fixed part (33), thigh fixed part (32) and shank fixed part (33) activity link to each other, drive assembly (5) are including thigh drive assembly (51), shank drive assembly (52) and cotton rope (53), thigh drive assembly (51) set up inside thigh fixed part (32), shank drive assembly (52) set up inside shank fixed part (33), connect through cotton rope (53) between thigh drive assembly (51) and shank drive assembly (52).

2. A medical rehabilitation bed for assisting rehabilitation of limb activities according to claim 1, wherein: the support frame (1) comprises a base (11) and a supporting component (12), the base (11) is movably connected with the supporting component (12), a plurality of moving wheels (13) are arranged below the base (11), and the moving wheels (13) are symmetrically arranged along the length direction of the base (11).

3. A medical rehabilitation bed for assisting rehabilitation of limb activities according to claim 2, wherein: lathe bed (2) are including the bed body (21), curb plate (22) and damping hinge (24), curb plate (22) set up in the both sides with the bed body (21) along bed body (21) length direction symmetry, link to each other through damping hinge (24) activity between the bed body (21) and curb plate (22), bed body (21) include first bed body (211) and second bed body (212), first bed body (211) and second bed body (212) activity hinge, curb plate (22) are including first curb plate (221) and second curb plate (222), second curb plate (222) are equipped with swing joint's handrail (23).

4. A medical rehabilitation bed for assisting rehabilitation of limb activities according to claim 1, wherein: the chest fixing device (4) is a fixing belt (41), fixing nails (42) used for connecting the fixing belt (41) and the lathe bed (2) are arranged at two ends of the fixing belt (41), and fixing buckles (43) fixedly connected with the fixing belt (41) are arranged between the fixing nails (42).

5. A medical rehabilitation bed for assisting rehabilitation of limb activities according to claim 1, wherein: the limb exercise device (3) further comprises a fixing head (31), the fixing head (31) is movably hinged with the thigh fixing part (32), the fixing head (31) is provided with a fixing strip (311) fixedly connected with the fixing head, and the limb exercise device (3) is fixedly connected with the bed body (21) through the fixing strip (311).

6. A medical rehabilitation bed for assisting rehabilitation of limb activities according to claim 1 or 5, wherein: thigh fixed part (32) include thigh fixed plate (321) and with thigh fixed plate (321) fixed continuous thigh bandage (322), shank fixed part (33) include shank fixed plate (331) and with shank fixed part (33) fixed continuous shank bandage (332), thigh bandage (322) and shank fixed part (33) set up in the opposite side surface in position of thigh fixed plate (321) and shank fixed plate (331).

7. A medical rehabilitation bed for assisting rehabilitation of limb activities according to claim 1, wherein: thigh drive subassembly (51) are constituteed by transmission (512), push rod (511), first stranded conductor device (513) and second stranded conductor device (514), the upper end of transmission (512) is fixed continuous with push rod (511), the lower extreme of transmission (512) swing joint first stranded conductor device (513) and second stranded conductor device (514) respectively, push rod (511) set up in thigh fixed part (32) lean on the outside position of curb plate (22), shank drive subassembly (52) include third stranded conductor device (521), fourth stranded conductor device (522) and take-up pulley (523), take-up pulley (523) set up in shank fixed part (33) lean on bed body (21) one side outside position, take-up pulley (523) are located between first stranded conductor device (513) and fourth stranded conductor device (522).