Turnover device for decompression femoral fracture patient

Abstract

The invention relates to the technical field of medical apparatus and instruments, and discloses a pressure-reducing turnover device for a femoral fracture patient, which comprises a bed body, a bed plate fixedly mounted on the inner wall of the bed body, and a plurality of turnover grooves formed in the top of the bed plate and penetrating through the bed plate, damping structures are arranged at the parts, in contact with the inner wall of the bed body, of the round rods, so that the round rods are kept static and do not move when not subjected to external force; the outer walls of the two round rods are rotationally sleeved with hollow rods correspondingly, two sets of identical sliding boxes and internal driving assemblies are used for turning over the left side and the right side of a patient correspondingly, the sliding boxes are driven by hydraulic cylinders to slide horizontally, and switching meshing of the two sets of sliding boxes, the round rods and tooth columns (the first tooth column, the second tooth column, the third tooth column and the fourth tooth column) on the hollow rods is achieved; the turning-over direction can be switched without manually adjusting the body position of a patient, and secondary injury to the femoral fracture part caused by frequent moving is avoided.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a decompression and turning device for patients with femoral fractures. Background Technology

[0002] Femoral fractures are a common orthopedic injury in clinical practice, often requiring prolonged bed rest. During this time, to prevent pressure sores caused by prolonged pressure on the affected area, and to promote blood circulation and reduce the incidence of complications, regular turning and repositioning are necessary. However, the fracture site of a femoral fracture patient has extremely poor weight-bearing capacity. Improper turning can easily lead to displacement of the fracture ends, increased pain, and even secondary injury, severely impacting the patient's recovery and significantly increasing the workload and difficulty for medical staff.

[0003] Currently, the most common methods for turning over patients with femoral fractures in clinical practice are manual turning or turning over with simple assistive devices. Manual turning requires the coordinated operation of multiple medical staff, which is not only labor-intensive, but also difficult to control the turning force and angle precisely, and cannot effectively ensure the stability of the patient's position. Simple assistive devices are mostly simple in structure and can only achieve unilateral turning, which cannot meet the nursing needs of patients turning over in both directions. They also lack effective positioning and cushioning structures, and patients are prone to sliding and misalignment during the turning process. This not only fails to achieve a reliable decompression effect, but may also cause the risk of falling out of bed due to the patient's deviation from the center of the bed. At the same time, problems such as component interference and insufficient stability are prone to occur during the transmission of the device.

[0004] Therefore, a decompression turning device for patients with femoral fractures was designed. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing a decompression turning device for patients with femoral fractures. It solves the problems of manual turning and simple auxiliary instruments used in clinical practice for turning patients with femoral fractures. Manual turning is labor-intensive and difficult to control precisely; simple auxiliary instruments have a simple structure, cannot meet the needs of bidirectional turning, and patients are prone to sliding and displacement, posing a risk of falling off the bed. Furthermore, the instrument transmission also suffers from problems such as component interference and insufficient stability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A decompression and turning device for patients with femoral fractures includes a bed frame, a bed board fixedly installed on the inner wall of the bed frame, multiple turning slots formed at the top of the bed board and extending through the bed board, two sets of identical round rods rotatably installed inside the bed frame, the portions of the round rods in contact with the inner wall of the bed frame being provided with damping structures so that the round rods remain stationary when no external force is applied; hollow rods are rotatably sleeved on the outer walls of the two round rods respectively, and turning plates one and two are fixedly installed on the outer walls of the round rods and the hollow rods respectively for driving the patient to turn over; The free ends of both the first and second turning boards are designed in an arc shape, and both the first and second turning boards are set to correspond to the turning grooves on the bed board, and can extend out of the top of the bed board through the turning grooves.

[0007] Preferably, the outer wall of the hollow rod is provided with a movable groove that matches the width of the flipping plate, and each flipping plate passes through the corresponding movable groove; the movable groove is designed in an arc shape with the axis of the hollow rod as the center, and the arc is adapted to the flipping trajectory of the flipping plate, so as to ensure that when the round rod drives the flipping plate to rotate, the hollow rod sleeved on the outer wall of the round rod will not interfere with the flipping action of the flipping plate.

[0008] Preferably, two identical sliding boxes are slidably installed on the bottom inner wall of the bed. The two sliding boxes are fixedly connected as a single structure by a connecting rod to achieve synchronous sliding. A hydraulic cylinder is fixedly installed on the bottom inner wall of the bed. The hydraulic cylinder is located in the middle of the two sliding boxes, and the output shaft of the hydraulic cylinder is fixedly connected to the outer wall of one of the sliding boxes. The two sliding boxes are driven to slide and adjust horizontally on the bottom inner wall of the bed by the extension and retraction movement of the output shaft of the hydraulic cylinder.

[0009] Preferably, multiple parallel sliding rods are fixedly installed on the inner walls of the two sliding boxes respectively. Sliding rod 1 and sliding rod 2 are slidably sleeved on the outer wall of the sliding rod. Sliding rod 1 and sliding rod 2 can slide freely along the length direction of the sliding rod. Sliding rod 1 has a toothed groove 2 at its top and sliding rod 2 has a toothed groove 4 at its top. Two adjacent sliding rod 1 and sliding rod 2 have toothed groove 1 and toothed groove 3 respectively on their sides that are close to each other. Toothed groove 1 and toothed groove 3 are arranged opposite to each other.

[0010] Preferably, the tooth spacing value and the size of a single tooth groove of the second tooth groove are both greater than the tooth spacing value and the size of a single tooth groove of the third tooth groove, and both the second and third tooth grooves are straight tooth groove structures with smooth tooth surfaces and uniform tooth spacing.

[0011] Preferably, motors are fixedly installed on the bottom inner walls of the two sliding boxes respectively, and the output shafts of the two motors are both vertically upward, and gears are fixedly sleeved on the output shafts of the motors; the motors are located in the middle of the corresponding sliding blocks one and two sliding blocks in the sliding boxes, and the gears mesh with the tooth groove one on the sliding block one and the tooth groove three on the sliding block two respectively. The motor drives the gears to rotate, causing the sliding blocks one and two to slide in opposite directions along the sliding rod.

[0012] Preferably, multiple support rods are symmetrically fixedly installed on the inner walls of both sides of the bed. The multiple support rods are arranged horizontally and parallel, and the free end of each support rod is rotatably connected to the corresponding hollow rod. A damping structure is provided at the connection between the support rod and the hollow rod, so that the hollow rod remains stationary when no external force is applied and will not rotate arbitrarily.

[0013] Preferably, toothed column one and toothed column two are fixedly sleeved on the same end of the two round rods respectively. Toothed column one meshes with toothed groove four on the top of the corresponding slider two, and toothed column two meshes with toothed groove two on the top of the corresponding slider one.

[0014] Preferably, one end of each of the two hollow rods away from the first and second toothed rods is fixedly fitted with a third toothed rod and a fourth toothed rod, respectively. The third toothed rod meshes with the second toothed groove on the top of the corresponding slider one, and the fourth toothed rod meshes with the fourth toothed groove on the top of the corresponding slider two.

[0015] Preferably, a flexible cushioning pad is fixedly laid on the top of both the first and second turning boards. The flexible cushioning pad is made of medical-grade silicone material and has anti-slip texture on its surface. A sterile mattress is laid on the top of the bed board.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention provides bidirectional turning and convenient switching, adapting to the left and right turning needs of patients with femoral fractures. It can effectively reduce nursing difficulty and patient discomfort. Through two sets of identical sliding boxes and internal drive components, the turning directions correspond to the left and right sides of the patient, respectively. The sliding boxes are driven by hydraulic cylinders to slide horizontally, realizing the switching engagement between the two sets of sliding boxes and the toothed columns (toothed column one, toothed column two, toothed column three, and toothed column four) on the round rod and hollow rod. The turning direction can be switched without manually adjusting the patient's position, avoiding secondary damage to the femoral fracture site caused by frequent moving.

[0017] This invention utilizes the size and spacing differences between the second and fourth toothed grooves and the corresponding third and fourth toothed pillars to allow the two hollow rods to drive the turning plate two to form different turning angles. The side with the larger turning angle drives the turning, while the side with the smaller angle achieves positioning. This prevents the patient from sliding when lying on their side, misaligning during repositioning in a supine position, and shifting away from the center of the bed. Combined with the damping structure (the connection between the round rod and the bed, and between the support rod and the hollow rod) to fix the position of the components, it ensures smooth turning and avoids long-term pressure on localized areas of the body, thus meeting the nursing needs of patients with femoral fractures. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall internal structure of the bed body of the present invention; Figure 3 This is a schematic diagram of the cooperation structure between the sliding box and the bed body of the present invention; Figure 4 This is a schematic diagram of the cooperation structure between the sliding box and the round rod and the hollow rod of the present invention; Figure 5 This is an exploded structural diagram of the round rod and hollow rod of the present invention; Figure 6 This is a schematic diagram of the overall structure of the sliding box of the present invention; Figure 7 This is a schematic diagram of the mating structure of the sliding box and the round rod of the present invention; Figure 8 This is a schematic diagram of the internal structure of the sliding box of the present invention; Figure 9 This is a schematic diagram of the cooperation structure between the sliding box and the hydraulic cylinder of the present invention.

[0020] Drawing number descriptions: 1. Bed frame; 10. Bed board; 101. Tilting groove; 102. Support rod; 2. Sliding box; 21. Slide rod; 3. Motor; 31. Gear; 4. Slider 1; 40. Gear groove 1; 401. Gear groove 2; 41. Slider 2; 411. Gear groove 3; 412. Gear groove 4; 5. Round rod; 51. Gear column 1; 52. Gear column 2; 53. Tilting plate 1; 6. Hollow rod; 60. Gear column 3; 61. Gear column 4; 62. Tilting plate 2; 63. Movable groove; 7. Hydraulic cylinder. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0023] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0024] It is understood that the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0025] Example 1: Please see Figure 1-9 A decompression and turning device for patients with femoral fractures includes a bed body 1, a bed board 10 fixedly installed on the inner wall of the bed body 1, four turning slots 101 opened at the top of the bed board 10 and passing through the bed board 10, two sets of identical round rods 5 rotatably installed inside the bed body 1, both ends of the two round rods 5 are rotatably connected to the inner wall of the bed body 1, and the part of the round rods 5 in contact with the inner wall of the bed body 1 is provided with a damping structure so that the round rods 5 remain stationary when no external force is applied; hollow rods 6 are rotatably sleeved on the outer walls of the two round rods 5 respectively, and two turning plates 53 and two turning plates 62 for driving the patient to turn over are fixedly installed on the outer walls of the round rods 5 and the hollow rods 6 respectively; The free ends of the first turning board 53 and the second turning board 62 are both designed in an arc shape, and the first turning board 53 and the second turning board 62 are both set to correspond to the turning groove 101 on the bed board 10. They can pass through the turning groove 101 and extend out of the top of the bed board 10. Multiple recessed strip grooves are opened on the side of the bed body 1 that slides in contact with the sliding box 2. The bottom of the sliding box 2 is fixedly installed with a convex strip that matches the recessed strip groove.

[0026] The outer wall of the hollow rod 6 is provided with a movable groove 63 that is adapted to the width of the flipping plate 53. Each flipping plate 53 is respectively set through the corresponding movable groove 63. The movable groove 63 is designed in an arc shape with the axis of the hollow rod 6 as the center. The arc is adapted to the flipping trajectory of the flipping plate 53, ensuring that when the round rod 5 drives the flipping plate 53 to rotate, the hollow rod 6 sleeved on the outer wall of the round rod 5 will not interfere with the flipping action of the flipping plate 53.

[0027] Two identical sliding boxes 2 are slidably installed on the bottom inner wall of the bed 1. The two sliding boxes 2 are fixedly connected as a whole by a connecting rod to achieve synchronous sliding. A hydraulic cylinder 7 is fixedly installed on the bottom inner wall of the bed 1. The hydraulic cylinder 7 is located in the middle of the two sliding boxes 2, and the output shaft of the hydraulic cylinder 7 is fixedly connected to the outer wall of one of the sliding boxes 2. The two sliding boxes 2 are driven to slide and adjust horizontally on the bottom inner wall of the bed 1 by the extension and retraction movement of the output shaft of the hydraulic cylinder 7.

[0028] Four parallel sliding rods 21 are fixedly installed on the inner walls of the two sliding boxes 2, with two rods forming a group. Sliding slider 4 and sliding slider 41 are slidably sleeved on the outer walls of the two groups of sliding rods 21. Sliding slider 4 and sliding slider 41 can slide freely along the length of the sliding rod 21. Sliding slider 4 has a toothed groove 401 on its top and a toothed groove 412 on its top. On the side of two adjacent sliding sliders 4 and 41 that are close to each other, toothed groove 40 and toothed groove 411 are respectively provided. Toothed groove 40 and toothed groove 411 are arranged opposite to each other.

[0029] The tooth spacing and the size of a single tooth groove of tooth groove 2 401 are both greater than those of tooth groove 3 411. Furthermore, both tooth groove 2 401 and tooth groove 3 411 are straight tooth groove structures with smooth tooth surfaces and uniform tooth spacing.

[0030] Motors 3 are fixedly installed on the bottom inner walls of the two sliding boxes 2 respectively. The output shafts of the two motors 3 are both set vertically upward, and gears 31 are fixedly sleeved on the output shafts of the motors 3. The motors 3 are located in the middle of the corresponding sliding blocks 4 and 41 in the sliding box 2, and the gears 31 mesh with the tooth groove 40 on the sliding block 4 and the tooth groove 411 on the sliding block 41 respectively. The motors 3 drive the gears 31 to rotate, causing the sliding blocks 4 and 41 to slide in opposite directions along the slide rod 21.

[0031] Multiple support rods 102 are symmetrically fixedly installed on the inner walls of both sides of the bed body 1. The multiple support rods 102 are arranged horizontally and parallel. The free end of each support rod 102 is rotatably connected to the corresponding hollow rod 6. A damping structure is provided at the connection between the support rod 102 and the hollow rod 6 so that the hollow rod 6 remains stationary when no external force is applied and will not rotate arbitrarily.

[0032] Two round rods 5 are respectively fixedly fitted with toothed column 1 51 and toothed column 2 52 at the same end. Toothed column 1 51 meshes with toothed groove 412 on the top of the corresponding slider 2 41, and toothed column 2 52 meshes with toothed groove 401 on the top of the corresponding slider 1 4.

[0033] Two hollow rods 6 are respectively located away from one end of toothed column 1 51 and toothed column 2 52, and toothed column 3 60 and toothed column 4 61 are respectively fixedly sleeved on one end. Toothed column 3 60 meshes with toothed groove 2 401 on the top of the corresponding slider 1 4, and toothed column 4 61 meshes with toothed groove 412 on the top of the corresponding slider 2 41.

[0034] Both the top of the turning board 1 (53) and the turning board 2 (62) are fixedly covered with flexible cushioning pads made of medical-grade silicone with anti-slip textures on the surface; the top of the bed board 10 is covered with a sterile mattress.

[0035] Two identical sliding boxes 2 and their internal drive components are set up to correspond to the patient's left and right turning, respectively. Normally, only one sliding box 2 and its drive component engage with the toothed columns 51, 52, 60, and 61 on the round rod 5 and hollow rod 6. Therefore, when a change in turning direction is needed, the output shaft of the hydraulic cylinder 7 extends and retracts, driving the two integrated sliding boxes 2 to slide horizontally along the inner wall of the bottom of the bed 1. This moves the originally separated sliding boxes 2 and their drive components to the corresponding positions, engaging with the toothed columns 51, 52, 60, and 61 at the other end. The originally engaged sliding boxes 2 and their drive components then separate from the toothed columns, completing the change in turning direction.

[0036] by Figure 6 Taking the state shown as an example, when it is necessary to turn the patient over, the operator operates through the screen display to start the motor 3 inside the sliding box 2, which is currently in the meshing state. After the motor 3 is powered on, it drives the gear 31 on the output shaft to rotate. Since the gear 31 meshes with the tooth groove 40 of the first slider 4 and the tooth groove 411 of the second slider 41 at the same time, when the gear 31 rotates, it will drive the first slider 4 and the second slider 41 to slide horizontally in opposite directions along the corresponding sliding rod 21, that is, one slides forward and the other slides backward.

[0037] When slider 4 slides horizontally, its top toothed groove 401 engages with toothed column 60, thereby causing toothed column 60 to rotate. Toothed column 60 is fixedly sleeved on hollow rod 6, thus causing hollow rod 6 to rotate synchronously. At the same time, when slider 41 slides horizontally, its top toothed groove 412 engages with toothed column 61, causing toothed column 61 to rotate, thereby causing the corresponding hollow rod 6 to rotate synchronously. Since slider 4 and slider 41 slide in opposite directions, the two hollow rods 6 will rotate in opposite directions, thereby causing the turning plates 62 on their respective outer walls to rotate in opposite directions. When the turning plates 62 rotate, they pass through the turning groove 101 of the bed board 10 and extend out of the top of the bed board 10 to fit against the patient's body.

[0038] Because the tooth grooves of tooth 2 (401) and tooth 4 (412) are different in size and spacing, and the meshing tooth 3 (60) and tooth 4 (61) have different size ratios, the rotation speeds of tooth 3 (60) and tooth 4 (61) are different, resulting in different rotation angles of the two hollow rods 6. The hollow rod 6 driven by tooth 4 (61) and the turning plate 2 (62) have a larger rotation angle, while the turning plate 2 (62) driven by tooth 3 (60) has a smaller rotation angle. The turning plate 2 (62) on the side with the larger rotation angle mainly serves to help the patient turn over, while the turning plate 2 (62) on the side with the smaller rotation angle mainly serves a positioning function: it prevents the side of the patient's body in contact with the bed surface from sliding when in a side-lying position, thus maintaining a stable side-lying position; it also prevents the patient's body from shifting when returning to a supine position, making subsequent turning operations on the other side inconvenient; and it also prevents the patient from shifting off the center of the bed 1 during turning, thus reducing the risk of falling off the bed.

[0039] The turning board 53 passes through the movable groove 63 on the hollow rod 6. The movable groove 63 is arc-shaped with the axis of the hollow rod 6 as the center, which can avoid interference between the hollow rod 6 and the turning board 53 when rotating. The damping structure at the connection between the round rod 5 and the bed 1, and the support rod 102 and the hollow rod 6 can fix the position of each component during the turning process, prevent the components from shaking after the external force is removed, and further ensure the stability of the patient's position.

[0040] Detailed operating procedures Before the procedure, it is necessary to confirm that the patient's femoral fracture site has been properly fixed. Place the patient with the femoral fracture stably on the sterile mattress of the bed board 10, adjust the patient's position so that the center of the patient's body is aligned with the center of the bed 1, and at the same time ensure that the patient's body corresponds to the position of the turning board 2 62, avoiding the fracture site, and ensure that the turning board 2 62 can fit against the patient's back / side when turning over.

[0041] Turning direction switching is performed on demand: Based on the patient's turning needs, turn to the left or right, and confirm whether the currently engaged sliding box 2 corresponds to the target turning direction; if not, start the hydraulic cylinder 7 through the screen display, control the extension and retraction of the output shaft of the hydraulic cylinder 7, drive the two integrated sliding boxes 2 to slide horizontally along the bottom inner wall of the bed 1, so that the sliding box 2 corresponding to the target turning direction and its drive components slider one 4 and slider two 41 engage with the corresponding end toothed column one 51, toothed column two 52 or toothed column three 60, toothed column four 61. After engagement, close the hydraulic cylinder 7, and the sliding box 2 remains fixed.

[0042] The screen displays a turning command, which activates the motor 3 inside the currently engaged sliding box 2. The motor 3 drives the gear 31 to rotate, which in turn drives the slider 4 and slider 41 to slide in opposite directions along the slide rod 21. Through the meshing of the tooth groove and the tooth column, the two hollow rods 6 are driven to rotate in opposite directions. The turning plate 62 slowly extends through the turning groove 101 and fits against the patient's body. The turning angle of the turning plate 62 is observed. The side with a larger turning angle slowly turns the patient over, while the side with a smaller turning angle simultaneously fits against the patient's body to play a positioning role.

[0043] After the patient turns over to the target lateral decubitus position, the motor 3 is turned off via the screen display. The motor 3 stops running, and the gear 31, slider 1 4, slider 2 41, toothed column and hollow rod 6 all remain stationary. The damping structure at the connection between the round rod 5 and the bed 1, and the support rod 102 and the hollow rod 6, plays its role in fixing the position of the turning board 2 62, so that the patient can stably maintain the lateral decubitus position and avoid sliding. At the same time, it can relieve body pressure and prevent local long-term pressure.

[0044] When the patient needs to return to a supine position, the motor 3 is started in reverse via the screen display, causing the gear 31 to rotate in the opposite direction. This causes the slider 4 and slider 41 to slide in the opposite direction, which in turn causes the hollow rod 6 to rotate in the opposite direction. The turning plate 62 slowly retracts into the turning groove 101 and detaches from the patient's body. After the patient has fully returned to a supine position, the motor 3 is turned off, and the turning plate 62 remains in its initial position.

[0045] If it is necessary to turn the patient to the other side, the sliding box 2 must first be moved by the hydraulic cylinder 7 to switch to the other side sliding box 2 and its drive components to mesh with the corresponding toothed column. Then, the motor 3 is started by the screen display to complete the other side turning, positioning and resetting operation. After all turning operations are completed, the main power of the device is turned off.

[0046] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from the stated principles.

Claims

1. A turning device for patients with femoral fractures, characterized in that: The bed includes a bed frame (1), a bed board (10) fixedly installed on the inner wall of the bed frame (1), and multiple turning slots (101) opened on the top of the bed board (10) and passing through the bed board (10). Two sets of identical round rods (5) are rotatably installed inside the bed frame (1). Hollow rods (6) are rotatably sleeved on the outer walls of the two round rods (5). Turning board one (53) and turning board two (62) for driving the patient to turn over are fixedly installed on the outer walls of the round rods (5) and the hollow rods (6), respectively. The free ends of the first turning board (53) and the second turning board (62) are both designed in an arc shape, and the first turning board (53) and the second turning board (62) are both set to correspond to the turning groove (101) on the bed board (10), and can pass through the turning groove (101) to extend out of the top of the bed board (10).

2. The decompression and turning device for patients with femoral fractures according to claim 1, characterized in that: The hollow rod (6) has a movable groove (63) on its outer wall that is adapted to the width of the turning plate (53), and each turning plate (53) passes through the corresponding movable groove (63).

3. The decompression and turning device for patients with femoral fractures according to claim 2, characterized in that: Two identical sliding boxes (2) are slidably installed on the bottom inner wall of the bed (1). The two sliding boxes (2) are fixedly connected as a whole by a connecting rod. A hydraulic cylinder (7) is fixedly installed on the bottom inner wall of the bed (1). The hydraulic cylinder (7) is located in the middle of the two sliding boxes (2), and the output shaft of the hydraulic cylinder (7) is fixedly connected to the outer wall of one of the sliding boxes (2).

4. The decompression and turning device for patients with femoral fractures according to claim 3, characterized in that: Multiple parallel sliding rods (21) are fixedly installed on the inner walls of the two sliding boxes (2). Sliding rods (21) 1 (4) and 2 (41) are slidably sleeved on the outer wall of the sliding rods (21). Sliding rods (2) 1 (4) 1 (4) 2 (401) 2 (412) 3 (412) 4 (401) 5 (401) 6 (412) 7 (401) 8 (412) 9 (401) 1 (401) and 2 (411) 1 (401) 1 (412) 1 (401) and 2 (411) 1 (401) 1 (412) 1 (401) and 2 (411) 1 (412) 1 (401) and 2 (411) 1 (401) 1 (412 ...

5. The decompression and turning device for patients with femoral fractures according to claim 4, characterized in that: The tooth spacing value and the size of a single tooth groove of the second tooth groove (401) are both greater than the tooth spacing value and the size of a single tooth groove of the third tooth groove (411), and both the second tooth groove (401) and the third tooth groove (411) are straight tooth groove structures.

6. A turning device for patients with decompression femoral fractures according to claim 5, characterized in that: Motors (3) are fixedly installed on the bottom inner walls of the two sliding boxes (2), and gears (31) are fixedly sleeved on the output shaft of the motors (3); the motors (3) are located in the middle of the slider one (4) and slider two (41) in the corresponding sliding boxes (2), and the gears (31) mesh with the tooth groove one (40) on slider one (4) and the tooth groove three (411) on slider two (41) respectively.

7. The decompression and turning device for patients with femoral fractures according to claim 6, characterized in that: Multiple support rods (102) are symmetrically fixed on the inner walls of both sides of the bed (1), and the free end of each support rod (102) is rotatably connected to the corresponding hollow rod (6).

8. The decompression and turning device for patients with femoral fractures according to claim 1, characterized in that: The same end of the two round rods (5) is respectively fitted with toothed column one (51) and toothed column two (52). The toothed column one (51) meshes with the toothed groove four (412) on the top of the corresponding slider two (41), and the toothed column two (52) meshes with the toothed groove two (401) on the top of the corresponding slider one (4).

9. A turning device for patients with femoral fractures according to claim 8, characterized in that: Two hollow rods (6) are respectively fixedly fitted with toothed column three (60) and toothed column four (61) at one end away from toothed column one (51) and toothed column two (52). Toothed column three (60) meshes with toothed groove two (401) on the top of the corresponding slider one (4), and toothed column four (61) meshes with toothed groove four (412) on the top of the corresponding slider two (41).

10. A turning device for patients with decompression femoral fractures according to any one of claims 1, characterized in that: The top of both the first turning board (53) and the second turning board (62) are fixedly covered with flexible cushioning pads. The flexible cushioning pads are made of medical silicone material and have anti-slip textures on the surface. The top of the bed board (10) is covered with a sterile mattress.

Images