Antiskid pulling hook device for hip joint replacement

Abstract

The invention discloses a hip joint replacement anti-skid pulling hook device in the technical field of hip joint replacement, which comprises an operating table and a pulling hook, and further comprises a fixing mechanism, and the fixing mechanism is fixedly arranged on the operating table and is used for fixing the pulling hook; and the connecting mechanism is used for connecting the fixing mechanism and the pull hook, and the connecting mechanism can adjust the position of the pull hook relative to the fixing mechanism. The pull hook is pulled by arranging the multiple sets of connecting mechanisms and the pull hook on one fixing mechanism, pulling of the pull hook by medical staff is replaced, the working intensity of the medical staff is reduced, meanwhile, the stability of the pull hook in the pulling process is improved, and the situation that the pull hook slides and deviates, and an operation is affected is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of hip joint replacement, in particular to an anti-slip hook device for hip joint replacement. Background Art

[0002] During hip replacement surgery, an opening needs to be made in the muscles near the hip joint first, and then the muscles at the incision are pulled with a retractor to expose the hip joint, thereby completing the preliminary work of the surgery.

[0003] During the operation, the medical staff needs to hold the hip joint with hooks throughout the whole process. As the hip joint muscle tissue is relatively tight, it is easy to slip if pulled manually, which will affect the operation. However, with external fixation, multiple hooks are needed to pull the incision in all directions during the muscle pulling process. Therefore, the external fixation method requires a large number of scattered traction devices, which may easily interfere with the normal operation of medical staff. Summary of the invention

[0004] The purpose of the present invention is to provide an anti-slip hook device for hip replacement to solve the problem raised in the above-mentioned background technology that during the operation, the hook needs to be held by medical staff throughout the whole process. Since the muscle tissue of the hip joint is relatively tight, it is easy to slip when pulled by human power, affecting the operation. While through external fixation, since multiple hooks are needed to pull the incision in all directions during the process of pulling the muscles, the external fixation method requires a large number of scattered traction devices, which is easy to interfere with the normal operation of medical staff.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: A hip replacement anti-slip hook device, comprising an operating table and a hook, and also comprising a fixing mechanism, wherein the fixing mechanism is fixedly arranged on the operating table, and the fixing mechanism is used to fix the hook;

[0006] A connecting mechanism is used to connect the fixing mechanism and the hook, and the connecting mechanism can adjust the position of the hook relative to the fixing mechanism.

[0007] Preferably, the connecting mechanism includes an adjusting device, and the adjusting device is fixedly connected to a telescopic mechanism at one end near the center of the fixing mechanism, and the end of the telescopic mechanism is fixedly connected to a lifting device, and the lifting device is fixedly connected to the pull hook. The length of the telescopic mechanism is adjustable, and the pull hook can be adjusted in the vertical direction through the lifting device.

[0008] Preferably, the telescopic mechanism includes a first straight rod, the first straight rod is fixedly connected to the lifting device, the first straight rod is slidably connected to a threaded rod, the threaded rod is fixedly connected to the lifting device, the end of the first straight rod is rotatably connected to a sleeve, and the end of the sleeve is threadedly connected to the threaded portion of the threaded rod.

[0009] Preferably, the lifting device includes a first connecting plate, the first connecting plate is fixedly connected to the end of the threaded rod, the side wall of the first connecting plate is fixedly connected to the mounting plate, the side wall of the mounting plate is vertically slidably connected to an inverted L-shaped plate, a bolt vertically penetrates the upper end of the inverted L-shaped plate, the bolt is threadedly connected to the inverted L-shaped plate, the lower end of the bolt is rotatably connected to the upper end of the mounting plate, and the side wall of the inverted L-shaped plate is fixedly connected to the hook.

[0010] Preferably, the fixing mechanism includes a gear ring, and connecting frames are fixedly connected to the left and right sides of the lower end of the gear ring, and the connecting frame is fixedly connected to the upper end of the operating table. An annular groove is opened at the upper end of the gear ring, and the adjusting device is slidably connected to the annular groove. The adjusting device is fixedly connected to a driving mechanism, and the driving mechanism is used to control the adjusting device to slide along the annular groove.

[0011] Preferably, the adjusting device includes a slider, which is slidably connected to the annular groove, the upper end of the slider is fixedly connected to a base plate, and the upper end of the base plate is fixedly connected to a fixed block on one side near the center of the gear ring; the front and rear sides of the upper end of the base plate are both laterally slidably connected to the first clamping plate and the second clamping plate, the first clamping plate is on the right, and the second clamping plate is on the left; a compressed spring is fixedly connected between the first clamping plate and the second clamping plate, the right end of the fixing block is located at the two first clamping plates, and the second bolts are threadedly connected to the second bolts laterally, and the ends of the second bolts are rotatably connected to the corresponding first clamping plates, and the upper end of the fixing block is provided with The lockhole that is formed on the upper surface of the second sprocket wheel is formed, and the lower surface of the second sprocket wheel is fixed with a third plate, and the locking plate is fixedly connected to the locking plate by a locking cam.

[0012] Preferably, the driving mechanism includes a mounting frame, the mounting frame is fixedly connected to the upper end of the base plate, the mounting frame is rotatably connected to a worm, the worm is meshed with a gear ring, the worm drive is connected to a driving device, and the driving device is used to drive the worm drive.

[0013] Preferably, the driving device includes a mounting platform, the mounting platform is fixedly connected to the upper end of the mounting frame, the upper end of the mounting platform is rotatably connected to a crank, a first gear is provided at the lower end of the mounting platform, the crank passes through the mounting platform and is fixedly connected to the first gear, a second gear is provided on the side wall of the mounting frame, the worm gear passes through the mounting frame and is fixedly connected to the second gear, and the first gear and the second gear are connected through an external transmission device.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention arranges multiple groups of connecting mechanisms and hooks on a fixed mechanism to pull the hook, thereby replacing the pulling of the hook by medical staff, reducing the work intensity of medical staff, and increasing the stability of the pulling process of the hook, preventing the hook from slipping and affecting the operation.

[0016] 2. During the operation, the initial preload of the spring is adjusted by turning the second bolt to adjust the difficulty of tilting the hook, thereby facilitating flexible traction of the wound.

[0017] 3. The present invention uses the first sliding rods on the front and rear sides which are independent of each other, respectively serving as the rotation axis for the right end of the rotating plate to rotate forward and backward. Compared with the method of using only a single rotation axis, Figure 9 It can be clearly seen that under the same rotation angle b, the retreat distance a of the hook in the manner adopted by the present invention is smaller, which further prevents the muscle from being torn during the tilting process of the hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 3 for Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0021] Figure 4 It is a schematic diagram of the front section structure of the telescopic mechanism;

[0022] Figure 5 is a schematic diagram of the structure of the regulating device;

[0023] Figure 6 It is a half-section structure explosion diagram of the regulating device;

[0024] Figure 7 is a schematic diagram of the structure of the driving mechanism;

[0025] Figure 8 It is a mimicry diagram when hooking and pulling;

[0026] Fig. 9 Comparison diagram of the hook rotating on different axes.

[0027] Figures: operating table 1, hook 2, fixing mechanism, connecting mechanism, adjusting device, telescopic mechanism, lifting device, first straight rod 8, threaded rod 9, sleeve 10, first connecting plate 11, mounting plate 12, inverted L-shaped plate 13, bolt 14, gear ring 15, connecting frame 16, annular groove 17, driving mechanism, slider 19, bottom plate 20, fixing block 21, first clamping plate 22, second clamping plate 23, spring 24, second bolt 25, rotating plate 26, first slide bar 27, arc groove 28, third clamping plate 29, second slide bar 30, rectangular groove 31, mounting frame 32, worm 33, driving device, mounting table 35, crank 36, first gear 37, second gear 38. DETAILED DESCRIPTION

[0028] See also Figure 1-9 , the present invention provides a technical solution: a hip replacement anti-slip hook device, comprising an operating table 1 and a hook 2, characterized in that: a fixing mechanism, the fixing mechanism is fixedly arranged on the operating table 1, and is used to fix the hook 2;

[0029] The connecting mechanism is used to connect the fixing mechanism and the hook 2, and the connecting mechanism can adjust the position of the hook 2 relative to the fixing mechanism.

[0030] During operation, the fixing mechanism is fixed on the operating table 1 and is set above the patient's surgical site, and then a plurality of connecting mechanisms and hooks 2 are set on the fixing mechanism, and the position of the corresponding hook 2 relative to the fixing mechanism is adjusted by the connecting mechanism, and the hook 2 is fixed, so that the hook 2 can open the patient's surgical site; thereby replacing the pulling of the hook 2 by the medical staff, reducing the work intensity of the medical staff, and increasing the stability of the pulling process of the hook 2, preventing the hook 2 from slipping and affecting the operation.

[0031] The present invention arranges multiple groups of connecting mechanisms and hooks 2 on a fixing mechanism to pull the hook 2, thereby replacing the pulling of the hook 2 by medical staff, reducing the work intensity of medical staff, and increasing the stability of the pulling process of the hook 2, preventing the hook 2 from slipping and affecting the operation.

[0032] The connecting mechanism includes an adjusting device, which is fixedly connected to a telescopic mechanism at one end of the adjusting device near the center of the fixing mechanism, and a lifting device is fixedly connected to the end of the telescopic mechanism. The lifting device is fixedly connected to the hook 2, the length of the telescopic mechanism is adjustable, and the hook 2 can be adjusted in the vertical direction through the lifting device.

[0033] During the process of pulling the wound, the height of the hook 2 is adjusted by the lifting device so that the hook 2 can be inserted into wounds at different heights. At the same time, the length of the telescopic mechanism is adjusted so that the hook 2 can smoothly pull the patient's wound and complete the exposure of the patient's hip joint.

[0034] The telescopic mechanism includes a first straight rod 8, which is fixedly connected to the lifting device. The first straight rod 8 is slidably connected to a threaded rod 9, which is fixedly connected to the lifting device. The end of the first straight rod 8 is rotatably connected to a sleeve 10, and the end of the sleeve 10 is threadedly connected to the threaded portion of the threaded rod 9.

[0035] During operation, the sleeve 10 is rotated to cause threaded transmission between the sleeve 10 and the threaded rod 9, thereby driving the threaded rod 9 to slide relative to the first straight rod 8, so that the telescopic mechanism can be extended and shortened. At the same time, the self-locking feature of the threaded transmission is utilized to make the traction process of the wound more stable.

[0036] The lifting device includes a first connecting plate 11, which is fixedly connected to the end of the threaded rod 9. The side wall of the first connecting plate 11 is fixedly connected to a mounting plate 12. The side wall of the mounting plate 12 is vertically slidably connected to an inverted L-shaped plate 13. A bolt 14 vertically penetrates the upper end of the inverted L-shaped plate 13. The bolt 14 is threadedly connected to the inverted L-shaped plate 13. The lower end of the bolt 14 is rotatably connected to the upper end of the mounting plate 12. The side wall of the inverted L-shaped plate 13 is fixedly connected to the hook 2.

[0037] During operation, the bolt 14 is rotated to cause threaded transmission between the bolt 14 and the inverted L-shaped plate 13, so that the inverted L-shaped plate 13 slides vertically relative to the mounting plate 12, and the mounting plate 12 drives the hook 2 to move vertically, so that the vertical height of the hook 2 changes.

[0038] The fixing mechanism includes a gear ring 15, and connecting frames 16 are fixedly connected to the left and right sides of the lower end of the gear ring 15. The connecting frame 16 is fixedly connected to the upper end of the operating table 1. An annular groove 17 is opened at the upper end of the gear ring 15. The adjusting device is slidably connected to the annular groove 17. The adjusting device is fixedly connected to a driving mechanism, and the driving mechanism is used to control the adjusting device to slide along the annular groove 17.

[0039] During operation, the gear ring 15 is placed above the wound so that the wound is located at the center of the gear ring 15 , and then the position of the adjustment device on the gear ring 15 is controlled by the driving mechanism to change the pulling angle of the hook 2 .

[0040] refer to Figure 2The adjusting device includes a slider 19, which is slidably connected to the annular groove 17. The upper end of the slider 19 is fixedly connected to a bottom plate 20, and a fixed block 21 is fixedly connected to the side of the upper end of the bottom plate 20 near the center of the gear ring 15; the front and rear sides of the upper end of the bottom plate 20 are both laterally slidably connected to the first clamping plate 22 and the second clamping plate 23, the first clamping plate 22 is on the right, and the second clamping plate 23 is on the left; a compressed spring 24 is fixedly connected between the first clamping plate 22 and the second clamping plate 23, the right end of the fixing block 21 is located at the two first clamping plates 22, and the second bolts 25 are transversely threaded and connected, and the ends of the second bolts 25 are rotatably connected to the corresponding first clamping plates 22, and the upper end of the fixing block 21 is provided with a rotating spring. Plate 26, the right end of the rotating plate 26 is fixedly connected to the second connecting plate 18, the second connecting plate 18 is fixedly connected to the end of the first straight rod 8, the front and rear sides of the upper end of the fixed block 21 are vertically fixedly connected to the first sliding rod 27, the front and rear sides of the rotating plate 26 are provided with arc grooves 28, the first sliding rod 27 is respectively slidably connected to the arc grooves 28 on the same sides of the front and rear, and the tracks of the arc grooves 28 are all centered on the first sliding rod 27 positioned front and back, the upper ends of the two first sliding rods 27 are commonly fixedly connected to the third clamping plate 29, the upper ends of the second clamping plates 23 are fixedly connected to the second sliding rod 30, and the lower end of the rotating plate 26 is located at the second sliding rod 30. A rectangular groove 31 is provided, and the second sliding rod 30 is located in the rectangular groove 31.

[0041] The hook 2 adjusts the pulling direction during the process of pulling the wound: when the hook 2 pulls the wound and keeps the wound open, the muscle is elastic, so the hook 2 is sunken in the muscle. Further, if the driving slider 19 moves relative to the annular groove 17 at this time, the side wall of the hook 2 will be blocked by the muscle (refer to Figure 8 ), at this time, the side wall of the hook 2 will be subjected to the reaction force of the muscle, and the hook 2 will further rotate with a first slide bar 27 (taking the first slide bar 27 on the front side as an example), and the hook 2 will tilt at this time, so that the hook 2 can pass over the muscle depression more smoothly, while reducing the damage to the muscle during the movement of the hook 2 on the muscle, effectively avoiding tearing of the muscle; during the tilting process of the hook 2,

[0042] First, the springs 24 on the front and rear sides apply a leftward thrust to the front and rear sides of the rotating plate 26, so that the right ends of the annular grooves 17 on the front and rear sides of the rotating plate 26 are closely attached to the corresponding first slide bar 27. Therefore, when the hook 2 is tilted, the corresponding rotating plate 26 rotates relative to the fixed block 21, and the elastic force of the spring 24 causes the rotating plate 26 to have a tendency to reset, thereby causing the hook 2 to have a tendency to reset, so that after the hook 2 reaches the predetermined position, it will reset to a certain extent, and in the supporting direction of the muscle contour on the hook 2, the spring 24 and the resetting force applied to the rotating plate 26, make the hook 2 fit the muscle contour as much as possible, and further prevent the hook 2 from pulling the muscle in a tilted state, resulting in the pulling force of the hook 2 on the muscle being concentrated on one side, causing muscle tearing;

[0043] Second, during the operation, the initial preload force of the spring 24 is adjusted by rotating the second bolt 25, so as to adjust the difficulty of the hook 2 tilting, thereby facilitating the flexible traction of the wound;

[0044] Thirdly, the present invention adopts the first sliding rod 27 which is independent of each other at the front and rear sides, respectively, as the rotation axis for the right end of the rotating plate 26 to rotate forward and backward. Compared with the method of using only a single rotation axis, Figure 9 It can be clearly seen that under the same rotation angle b, the retreat distance a of the hook 2 in the manner adopted by the present invention is smaller, which further prevents the muscle from being torn during the tilting process of the hook 2.

[0045] The driving mechanism includes a mounting frame 32, which is fixedly connected to the upper end of the base plate 20. The mounting frame 32 is rotatably connected to a worm 33, which meshes with the gear ring 15. The worm 33 is transmission-connected to a driving device, which is used to drive the worm 33 to transmit.

[0046] The driving device includes a mounting platform 35, which is fixedly connected to the upper end of the mounting frame 32. The upper end of the mounting platform 35 is rotatably connected to a crank 36. A first gear 37 is provided at the lower end of the mounting platform 35. The crank 36 passes through the mounting platform 35 and is fixedly connected to the first gear 37. A second gear 38 is provided on the side wall of the mounting frame 32. The worm 33 passes through the mounting frame 32 and is fixedly connected to the second gear 38. The first gear 37 and the second gear 38 are connected through an external transmission device.

[0047] The worm 33 is driven to rotate by shaking the crank 36 , thereby driving the slider 19 to slide along the annular groove 17 .

Claims

1. A hip replacement anti-slip hook device, comprising an operating table (1) and a hook (2), characterized in that: A fixing mechanism, the fixing mechanism being fixedly arranged on the operating table (1) and being used for fixing the retractor (2); A connecting mechanism, the connecting mechanism is used to connect the fixing mechanism and the hook (2), and the connecting mechanism can adjust the position of the hook (2) relative to the fixing mechanism.

2. The anti-slip hook device for hip replacement according to claim 1, characterized in that: The connecting mechanism comprises an adjusting device, wherein one end of the adjusting device close to the center of the fixing mechanism is fixedly connected to a telescopic mechanism, and the end of the telescopic mechanism is fixedly connected to a lifting device, and the lifting device is fixedly connected to the hook (2). The length of the telescopic mechanism is adjustable, and the hook (2) can be adjusted in the vertical direction by the lifting device.

3. The anti-slip hook device for hip replacement according to claim 2, characterized in that: The telescopic mechanism comprises a first straight rod (8), the first straight rod (8) is fixedly connected to the lifting device, the first straight rod (8) is slidably connected to a threaded rod (9), the threaded rod (9) is fixedly connected to the lifting device, the end of the first straight rod (8) is rotatably connected to a sleeve (10), and the end of the sleeve (10) is threadedly connected to the threaded portion of the threaded rod (9).

4. The anti-slip hook device for hip replacement according to claim 3, characterized in that: The lifting device comprises a first connecting plate (11), the first connecting plate (11) is fixedly connected to the end of the threaded rod (9), the side wall of the first connecting plate (11) is fixedly connected to a mounting plate (12), the side wall of the mounting plate (12) is vertically slidably connected to an inverted L-shaped plate (13), a bolt (14) vertically penetrates the upper end of the inverted L-shaped plate (13), the bolt (14) is threadedly connected to the inverted L-shaped plate (13), the lower end of the bolt (14) is rotatably connected to the upper end of the mounting plate (12), and the side wall of the inverted L-shaped plate (13) is fixedly connected to the hook (2).

5. The anti-slip hook device for hip replacement according to claim 4, characterized in that: The fixing mechanism comprises a gear ring (15), the left and right sides of the lower end of the gear ring (15) are fixedly connected to connecting frames (16), the connecting frame (16) is fixedly connected to the upper end of the operating table (1), the upper end of the gear ring (15) is provided with an annular groove (17), the adjusting device is slidably connected to the annular groove (17), and the adjusting device is fixedly connected to a driving mechanism, and the driving mechanism is used to control the adjusting device to slide along the annular groove (17).

6. The anti-slip hook device for hip replacement according to claim 5, characterized in that: The adjusting device comprises a slider (19), the slider (19) is slidably connected to the annular groove (17), the upper end of the slider (19) is fixedly connected to a base plate (20), and the upper end of the base plate (20) is fixedly connected to a fixed block (21) on one side close to the center of the gear ring (15); the front and rear sides of the upper end of the base plate (20) are both laterally slidably connected to a first clamping plate (22) and a second clamping plate (23), the first clamping plate (22) is on the right, and the second clamping plate (23) is on the left; a compressed spring (24) is fixedly connected between the first clamping plate (22) and the second clamping plate (23), the right end of the fixed block (21) is located at the two first clamping plates (22) and is laterally penetrated by a second bolt (25) threadedly connected, the ends of the second bolt (25) are rotatably connected to the corresponding first clamping plates (22), and the upper end of the fixed block (21) is provided with The rotating plate (26) has a second connecting plate (18) fixedly connected to the right end of the rotating plate (26), and the second connecting plate (18) is fixedly connected to the end of the first straight rod (8). The front and rear sides of the upper end of the fixed block (21) are vertically fixedly connected to the first sliding rod (27). The front and rear sides of the rotating plate (26) are provided with arc grooves (28), and the first sliding rod (27) is respectively slidably connected to the arc grooves (28) on the same side of the front and rear. The tracks of the arc grooves (28) are all centered on the first sliding rod (27) in front and rear alignment. The upper ends of the two first sliding rods (27) are commonly fixedly connected to a third clamping plate (29), and the upper ends of the second clamping plates (23) are fixedly connected to a second sliding rod (30). The lower end of the rotating plate (26) is provided with a rectangular groove (31) at the second sliding rod (30), and the second sliding rod (30) is located in the rectangular groove (31).

7. The anti-slip hook device for hip replacement according to claim 6, characterized in that: The driving mechanism comprises a mounting frame (32), the mounting frame (32) being fixedly connected to the upper end of the base plate (20), the mounting frame (32) being rotatably connected to a worm (33), the worm (33) being meshed with a gear ring (15), the worm (33) being transmission-connected to a driving device, and the driving device being used to drive the worm (33) to transmit.

8. The anti-slip hook device for hip replacement according to claim 7, characterized in that: The driving device comprises a mounting platform (35), the mounting platform (35) being fixedly connected to the upper end of the mounting frame (32), the upper end of the mounting platform (35) being rotatably connected to a crank (36), a first gear (37) being provided at the lower end of the mounting platform (35), the crank (36) passing through the mounting platform (35) and being fixedly connected to the first gear (37), a second gear (38) being provided on the side wall of the mounting frame (32), the worm (33) passing through the mounting frame (32) and being fixedly connected to the second gear (38), and the first gear (37) and the second gear (38) being transmission-connected via an external transmission device.

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