Moving device on bed for child patient after cardiac surgery

Abstract

The invention discloses an on-bed moving device for a cardiac postoperative child patient, and belongs to the field of medical equipment, the on-bed moving device comprises a bed body, an arm supporting plate, a leg supporting device, a driving device, a cam device, a driving plate and a lifting device, the arm supporting plate is hinged in an arm plate moving hole; the camshaft is rotatably connected to the lower surface of the bed body, and the driving device is mounted on the lower surface of the bed body and is in transmission connection with the camshaft; the first cam and the second cam are mounted on the cam shaft; the two first cams face opposite directions, and the two second cams face opposite directions; the first cam is in sliding connection with the cam matching flange; the driving plate slides on the lower surface of the bed body, one end of the spring is connected with the baffle, the other end of the spring is connected with the first flanging, the lifting device is movably installed on the bed body, the driving plate is in transmission connection with the lifting device, and the leg supporting device is installed on the lifting device. According to the invention, a child patient after a cardiac surgery can move in an alternate linkage form of hands and feet on the bed, and alternate movement when the feet are lifted is realized.

Description

Technical Field

[0001] The present invention belongs to the field of medical devices, and particularly relates to a bed activity device for children after heart surgery. Background Art

[0002] Due to factors such as surgical trauma and incomplete recovery of cardiopulmonary function, children after cardiac surgery need to strictly limit early out-of-bed activities to avoid circulatory fluctuations or incision complications. However, long-term bed rest is likely to cause risks such as pulmonary infection, deep vein thrombosis of the lower extremities, and muscle atrophy. Therefore, early postoperative in-bed adaptive activity training is of great significance for promoting the recovery of children. Currently, most of the postoperative activity assistance devices used clinically adopt a mechanical synchronous lifting design, which cannot move in the form of alternating linkage of hands and feet like walking, and cannot simulate the phase difference linkage mechanism of "forward swing of the upper limb - movement of the contralateral lower limb" during human walking. Summary of the Invention

[0003] In view of this, the present invention provides a bed activity device for children after heart surgery to solve the above problems.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A bed activity device for children after heart surgery, comprising: a bed body, an arm support plate, a leg support device, a driving device, a cam device, a driving plate, and a lifting device. Two arm plate moving holes are provided on the bed body, and a pair of the arm support plates are respectively hinged in the arm plate moving holes. One end of the arm support plate is provided with a cam mating flange; the cam device includes a camshaft, a first cam, a second cam, and a spring. The camshaft is rotatably connected to the lower surface of the bed body. The driving device is installed on the lower surface of the bed body, and the driving device is in transmission connection with the camshaft; a pair of the first cams are installed at both ends of the camshaft, and a pair of the second cams are installed on the camshaft and located between the two first cams; the output ends of the two first cams face in opposite directions, and the output ends of the two second cams face in opposite directions; the first cam is in sliding connection with the cam mating flange; a pair of the driving plates are slidably connected to the lower surface of the bed body. A baffle is provided on the lower surface of the bed body. A first flange is provided on the driving plate. One end of each of the pair of springs is fixedly connected to the baffle, and the other end is fixedly connected to the first flange. A pair of the lifting devices are movably installed on the bed body. The driving plate is in transmission connection with the lifting device, and a pair of the leg support devices are respectively installed on the lifting device.

[0006] Further, the lifting device includes a movable block, a first gear, a second gear, a rotating shaft, a square shaft, and a rack. The movable block is installed in the bed body. The first gear is fixedly connected to the rotating shaft. The first gear is rotatably connected to the bottom end of the movable block through the rotating shaft. The square shaft is fixedly connected to the rotating shaft. The second gear is installed on the square shaft. A toothed portion is provided on the driving plate. The second gear meshes with the toothed portion. The rack is vertically slidably connected in the movable block. The first gear meshes with the rack. The leg support device is installed on the rack.

[0007] Further, a chute is provided on the bed body. The movable block penetrates through the chute and is slidably connected to the chute. The lifting device further includes a positioning pin. A first positioning hole is provided on the movable block. A plurality of second positioning holes are provided in the chute. The positioning pin passes through the first positioning hole and is inserted into the second positioning hole to adjust the position of the movable block in the chute to suit patients of different heights.

[0008] Further, a third positioning hole is further provided on the movable block. A fourth positioning hole is provided on the side wall of the driving plate. The positioning pin passes through the third positioning hole and is inserted into the fourth positioning hole to drive the driving plate to drive the movable block to slide in the chute.

[0009] Further, the driving device includes a motor, a first bevel gear, and a second bevel gear. The motor is installed on the lower surface of the bed body. The first bevel gear is installed on the output end of the motor. The second bevel gear is installed on the camshaft. The first bevel gear meshes with the second bevel gear.

[0010] Further, the leg support device includes a leg brace. The leg brace is installed on the rack.

[0011] Further, the leg support device further includes a leg brace rotating shaft. The leg brace is installed on the rack through the leg brace rotating shaft. The leg brace rotating shaft is rotatably connected to the rack.

[0012] The beneficial effects of the present invention are as follows:

[0013] The present invention drives the swing of the arm support plate through the cooperation of the first cam and the flanging cam, and the second cam controls the lifting device through the driving plate, forming a linkage mechanism of alternating swing of the hand and alternating lifting of the legs. This movement mode simulates the natural movement rhythm of the human body, which can not only avoid excessive load on a single limb, but also promote blood circulation throughout the body, effectively preventing deep vein thrombosis and muscle atrophy after surgery; after the moving block slides in the chute, the position of the moving block can be fixed through the positioning pin, the first positioning hole and the second positioning hole, which is used to accommodate patients of different heights; the second gear slides on the square shaft and disengages from the tooth part on the driving plate, pulling the rack upward from the moving block, so that the two leg support devices are at the same height, and then making the second gear slide on the square shaft and re-engage with the tooth part. At the same time, passing the positioning pin through the third positioning hole and inserting it into the fourth positioning hole in China can enable the moving block to slide in the chute along with the driving plate, realizing the alternating movement after both feet are lifted. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0015] Figure 1 It is a bottom view of a bed activity device for children after heart surgery.

[0016] Figure 2 It is a top view of a bed activity device for children after heart surgery.

[0017] Figure 3 It is Figure 1 the A-A cross-sectional view in

[0018] Figure 4 It is Figure 1 the B-B cross-sectional view in

[0019] Figure 5 In Figure 1 it is the C-C cross-sectional view in

[0020] Figure 6 In Figure 1 it is the cross-sectional view of D-D(a) in

[0021] Figure 7 It is Figure 1 the cross-sectional view of D-D(b) in

[0022] Figure 8 It is Figure 2 the E-E cross-sectional view in

[0023] Among them, in the figure:

[0024] 10 - Bed body, 11 - Movable hole for arm board, 12 - Baffle, 13 - Slide groove, 131 - Second positioning hole, 20 - Arm support plate, 21 - Flange for cam cooperation, 30 - Leg support device, 31 - Leg hoop, 32 - Leg hoop rotating shaft, 41 - Motor, 42 - First bevel gear, 43 - Second bevel gear, 51 - Camshaft, 52 - First cam, 53 - Second cam, 54 - Spring, 55 - Positioning pin, 60 - Driving plate, 61 - First flange, 62 - Tooth part, 63 - Fourth positioning hole, 70 - Lifting device, 71 - Movable block, 711 - First positioning hole, 712 - Third positioning hole, 72 - First gear, 73 - Second gear, 74 - Rotating shaft, 75 - Square shaft, 76 - Rack. Detailed implementation manners

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Referring to the attached Figure 1-8 , the present invention provides a bed activity device for children after heart surgery, including: a bed body 10, an arm support plate 20, a leg support device 30, a driving device, a cam device, a driving plate 60 and a lifting device 70. There are two movable holes 11 for arm boards on the bed body 10. A pair of arm support plates 20 are respectively hinged in the movable holes 11 for arm boards. One end of the arm support plate 20 is provided with a flange 21 for cam cooperation. The cam device includes a camshaft 51, a first cam 52, a second cam 53 and a spring 54. The camshaft 51 is rotatably connected to the lower surface of the bed body 10. The driving device is installed on the lower surface of the bed body 10, and the driving device is in transmission connection with the camshaft 51. A pair of first cams 52 are installed at both ends of the camshaft 51. A pair of second cams 53 are installed on the camshaft 51 and are located between the two first cams 52. The output ends of the two first cams 52 face in opposite directions, and the output ends of the two second cams 53 face in opposite directions. The first cam 52 is in sliding connection with the flange 21 for cam cooperation. A pair of driving plates 60 are slidably connected to the lower surface of the bed body 10. A baffle 12 is provided on the lower surface of the bed body 10. The driving plate 60 is provided with a first flange 61. One end of each of the pair of springs 54 is fixedly connected to the baffle 12, and the other end is fixedly connected to the first flange 61. A pair of lifting devices 70 are movably installed on the bed body 10. The driving plate 60 is in transmission connection with the lifting device 70. A pair of leg support devices 30 are respectively installed on the lifting device 70.

[0027] The driving device drives the camshaft 51 to rotate, and the camshaft 51 drives the two first cams 52 and the two second cams 53 thereon to rotate synchronously; the camshaft 51 drives the first cam 52 to continuously swing the arm support plate 20 up and down in the arm plate moving hole 11 through the cam mating flange 21. Since the output ends of the two first cams 52 face in opposite directions, the two arm support plates 20 swing crosswise regularly; similarly, the second cam 53 is in sliding fit with the first flange 61 on the driving plate 60, compressing the spring 54, so that the driving plate 60 slides on the lower surface of the bed body 10, driving the lifting device 70 to move vertically up and down, and the lifting device 70 drives the leg support device 30 to move vertically up and down. Since the output ends of the two second cams 53 face in opposite directions, the two leg support devices 30 move crosswise regularly up and down; as Figure 1 shown, by arranging two first cams 52 and two second cams 53, a linkage mechanism for the alternate swinging of the hands and the alternate lifting of the legs is formed.

[0028] Preferably, in one embodiment, the lifting device 70 includes a movable block 71, a first gear 72, a second gear 73, a rotating shaft 74, a square shaft 75 and a rack 76. The movable block 71 is installed in the bed body 10. The first gear 72 is fixedly connected to the rotating shaft 74. The first gear 72 is rotatably connected to the bottom end of the movable block 71 through the rotating shaft 74. The square shaft 75 is fixedly connected to the rotating shaft 74. The second gear 73 is installed on the square shaft 75. A tooth portion 62 is provided on the driving plate 60. The second gear 73 meshes with the tooth portion 62; the rack 76 is vertically slidably connected in the movable block 71. The first gear 72 meshes with the rack 76. The leg support device 30 is installed on the rack 76.

[0029] During the lateral movement of the driving plate 60, the second gear 73 is driven to rotate. Since the second gear 73, the square shaft 75, the rotating shaft 74 and the first gear 72 are fixedly connected, the rotating shaft 74 and the first gear 72 rotate at the bottom end of the movable block 71. The first gear 72 drives the rack 76 to move vertically up and down in the movable block 71 through meshing with the rack 76.

[0030] Preferably, in one embodiment, a sliding groove 13 is provided on the bed body 10. The movable block 71 penetrates through the sliding groove 13 and is slidably connected to the sliding groove 13. The lifting device 70 further includes a positioning pin 55. A first positioning hole 711 is provided on the movable block 71. A plurality of second positioning holes 131 are provided in the sliding groove 13. As Figure 6 shown, the positioning pin 55 passes through the first positioning hole 711 and is inserted into the second positioning hole 131 to adjust the position of the movable block 71 in the sliding groove 13 to suit patients of different heights.

[0031] Preferably, in one embodiment, a third positioning hole 712 is further provided on the movable block 71, and a fourth positioning hole 63 is provided on the side wall of the driving plate 60. As Figure 7As shown, the positioning pin 55 is inserted into the fourth positioning hole 63 through the third positioning hole 712, so that the driving plate 60 drives the movable block 71 to slide in the sliding groove 13.

[0032] The second gear 73 slides on the square shaft 75 and disengages from the tooth part 62 on the driving plate 60, pulling the rack 76 upward from the movable block 71 to make the two leg support devices 30 at the same height. Then, the second gear 73 slides on the square shaft 75 and engages with the tooth part 62 again to fix the position of the rack 76 in the movable hole. At the same time, the over-positioning pin 55 is inserted into the fourth positioning hole 63 through the third positioning hole 712, enabling the movable block 71 to slide in the sliding groove 13 along with the driving plate 60, realizing the alternating movement after both feet are lifted.

[0033] Preferably, in an embodiment, the driving device includes a motor 41, a first bevel gear 42, and a second bevel gear 43. The motor 41 is installed on the lower surface of the bed body 10, the first bevel gear 42 is installed at the output end of the motor 41, the second bevel gear 43 is installed on the camshaft 51, and the first bevel gear 42 and the second bevel gear 43 are meshed.

[0034] Preferably, in an embodiment, the leg support device 30 includes a leg hoop 31, and the leg hoop 31 is installed on the rack 76. The patient's leg or ankle is placed on the leg hoop 31 to realize the movement of the leg.

[0035] Preferably, in an embodiment, the leg support device 30 further includes a leg hoop rotating shaft 32. The leg hoop 31 is installed on the rack 76 through the leg hoop rotating shaft 32, and the leg hoop rotating shaft 32 is rotatably connected to the rack 76 to realize the flexibility of the leg during lifting or moving forward and backward.

[0036] Working principle: Place the patient's two arms on the arm support plate 20 and the legs in the leg hoop 31. As Figure 6 shown, the positioning pin 55 is inserted into the second positioning hole 131 through the first positioning hole 711 to fix the position of the movable block 71 in the sliding groove 13. Turn on the motor 41, and the motor 41 drives the camshaft 51 to rotate, driving the two first cams 52 and the two second cams 53 to rotate, forming a linkage movement of alternating swinging of the hands and alternating lifting of the legs.

[0037] As Figure 7As shown, the second gear 73 slides on the square shaft 75 to disengage from the engagement with the tooth portion 62 on the drive plate 60, pulls the rack 76 upward from the movable block 71, so that the two leg support devices 30 are at the same height. Then, the second gear 73 slides on the square shaft 75 again to re-engage with the tooth portion 62, fixing the position of the rack 76 in the movable block 71 and the height of the leg support device 30, and causing the leg support device 30 to lift both legs. At the same time, the positioning pin 55 passes through the third positioning hole 712 and is inserted into the fourth positioning hole 63, enabling the movable block 71 to slide in the chute 13 along with the drive plate 60, realizing the alternating movement after both feet are lifted.

[0038] The above are only specific embodiments of the present invention, and common knowledge such as specific structures and characteristics known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

[0039] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts among the various embodiments can be referred to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bed activity device for children after heart surgery, characterized in that, Including: A bed body (10), an arm support plate (20), a leg support device (30), a driving device, a cam device, a driving plate (60) and a lifting device (70). There are two arm plate moving holes (11) provided on the bed body (10). A pair of the arm support plates (20) are respectively hinged in the arm plate moving holes (11). One end of the arm support plate (20) is provided with a cam matching flange (21). The cam device includes a camshaft (51), a first cam (52), a second cam (53) and a spring (54). The camshaft (51) is rotatably connected to the lower surface of the bed body (10). The driving device is installed on the lower surface of the bed body (10), and the driving device is in transmission connection with the camshaft (51). A pair of the first cams (52) are installed at both ends of the camshaft (51). A pair of the second cams (53) are installed on the camshaft (51) and are located between the two first cams (52). The output ends of the two first cams (52) face in opposite directions, and the output ends of the two second cams (53) face in opposite directions. The first cam (52) is in sliding connection with the cam matching flange (21). A pair of the driving plates (60) are slidably connected to the lower surface of the bed body (10). A baffle (12) is provided on the lower surface of the bed body (10). A first flange (61) is provided on the driving plate (60). One end of each of the pair of springs (54) is fixedly connected to the baffle (12), and the other end is fixedly connected to the first flange (61). A pair of the lifting devices (70) are movably installed on the bed body (10). The driving plate (60) is in transmission connection with the lifting device (70). A pair of the leg support devices (30) are respectively installed on the lifting device (70).

2. The pediatric in-bed activity device after heart surgery according to claim 1, characterized in that, The lifting device (70) includes a movable block (71), a first gear (72), a second gear (73), a rotating shaft (74), a square shaft (75) and a rack (76). The movable block (71) is installed in the bed body (10). The first gear (72) is fixedly connected to the rotating shaft (74). The first gear (72) is rotatably connected to the bottom end of the movable block (71) through the rotating shaft (74). The square shaft (75) is fixedly connected to the rotating shaft (74). The second gear (73) is installed on the square shaft (75). A tooth part (62) is provided on the driving plate (60). The second gear (73) meshes with the tooth part (62). The rack (76) is vertically slidably connected in the movable block (71). The first gear (72) meshes with the rack (76). The leg support device (30) is installed on the rack (76).

3. The bed activity device for children after cardiac surgery according to claim 2, wherein, A chute (13) is provided on the bed body (10). The movable block (71) penetrates through the chute (13) and is slidably connected to the chute (13). The lifting device (70) further includes a positioning pin (55). A first positioning hole (711) is provided on the movable block (71), and a plurality of second positioning holes (131) are provided in the chute (13). The positioning pin (55) passes through the first positioning hole (711) and is inserted into the second positioning hole (131) to adjust the position of the movable block (71) in the chute (13) to suit patients of different heights.

4. A device for postoperative children's in-bed activities according to claim 3, characterized in that, A third positioning hole (712) is further provided on the movable block (71), and a fourth positioning hole (63) is provided on the side wall of the driving plate (60). The positioning pin (55) passes through the third positioning hole (712) and is inserted into the fourth positioning hole (63) to enable the driving plate (60) to drive the movable block (71) to slide in the chute (13).

5. The pediatric in-bed activity device after heart surgery according to claim 1, wherein, The driving device includes a motor (41), a first bevel gear (42), and a second bevel gear (43). The motor (41) is installed on the lower surface of the bed body (10). The first bevel gear (42) is installed on the output end of the motor (41). The second bevel gear (43) is installed on the camshaft (51). The first bevel gear (42) and the second bevel gear (43) are meshed.

6. The pediatric in-bed activity device after heart surgery according to claim 2, characterized in that, The leg support device (30) includes a leg hoop (31), and the leg hoop (31) is installed on the rack (76).

7. The bed activity device for children after heart surgery according to claim 6, wherein, The leg support device (30) further includes a leg hoop rotating shaft (32). The leg hoop (31) is installed on the rack (76) through the leg hoop rotating shaft (32), and the leg hoop rotating shaft (32) is rotatably connected to the rack (76).

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