Drag hook fixing device for hip joint replacement

Abstract

The invention relates to the technical field of battery pole plate smearing, in particular to a hip joint replacement drag hook fixing device which comprises a support, a supporting assembly is arranged at the top of the support and comprises a supporting ring, a plurality of fixing rings are fixedly installed at the bottom of the supporting ring, a wire winding mechanism is arranged on the inner sides of the fixing rings, and the wire winding mechanism is arranged on the support. The wire coiling mechanism comprises a take-up reel, and a plurality of protective shell assemblies are arranged at the top of the supporting ring. The design of the supporting ring and the wire winding mechanisms is adopted, so that the supporting ring provides support for the wire winding mechanisms, meanwhile, a blank area in the middle of the supporting ring can provide sufficient view space and operation space for a surgeon, the surgeon can conduct an operation conveniently, and meanwhile the design of the multiple wire winding mechanisms facilitates the operation of the surgeon. The flexible tissue retractor has the advantages that the flexible tissue retractor can be used for retractor of soft tissues in operation areas in different directions, and a lower locking column and an upper locking column in the wire winding mechanism are matched, so that a grasping ring can be loosened after a connecting rope is tensioned to a certain degree, and the self-locking of the connecting rope can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of battery plate coatings, in particular to a retractor fixing device for hip joint replacement. Background Art

[0002] The retractor fixation device for hip replacement is also called a traction device or surgical traction device. In hip replacement surgery, the retractor fixation device is used to help expose the joint, provide traction on the joint, and provide a good view and space for the surgical area. The retractor fixation device during the operation usually helps separate the femur and acetabulum by providing continuous and adjustable pulling force, ensuring that the doctor can smoothly perform joint resection, repair and replacement. It can not only ensure the exposure of the surgical area, but also relieve the pressure on the surgical area by traction on the femoral head and reduce interference with soft tissue.

[0003] The Chinese patent with announcement number CN111436982B discloses an artificial hip replacement retractor and exposure positioner, including a support plate, an adjustment mechanism, a top plate, a base, a positioning mechanism and a medical light. The invention can not only accurately locate the incision position and the length of the incision, but also adjust the position of the incised skin and soft tissue according to usage requirements, greatly reducing the difficulty of the operation. It is flexible to use, highly practical, and meets the usage needs in the existing market.

[0004] The Chinese patent with announcement number CN110141407B discloses a hip replacement surgery auxiliary device, including a bed frame and a bed board. A hip support board that can be moved forward and backward and raised and lowered is arranged in the middle of the top of the bed board. This invention effectively solves the problems existing in current hip replacement surgery, such as the inability to change body position, the inability to fix the patient's position firmly during surgery, and the inability to fully expose the surgical site.

[0005] In existing hip replacement surgeries, the retractors used usually need to be manually held by medical staff, and during the operation, multiple retractors are needed to open the surgical area while the surgeon operates. The manually held retractors usually need to be fixed in the surgical area, and multiple retractors need to be held by multiple medical staff, which will block the surgeon's direct observation of the surgical site and affect the accuracy of their operation. In addition, it is difficult for medical staff to maintain consistency in the force applied, resulting in force fluctuations, affecting the stability of the operation. Long-term manual operation may cause fatigue to medical staff, thereby affecting the accuracy and stability of the operation. In addition, different medical staff have different operating skills and experience levels, which will lead to uneven force application and increase surgical risks.

[0006] Therefore, the present invention provides a retractor fixation device for hip replacement that can conveniently expose the visual field space and operation space of the surgical area and can apply a stable force. Summary of the invention

[0007] Aiming at the problems that the hand-held retractor in the prior art easily affects the operation of the surgeon and the uneven force of the retractor easily causes damage to the soft tissue in the surgical area, a retractor fixing device for hip replacement is designed.

[0008] The technical solution adopted by the present invention to solve its technical problems is: a hook fixing device for hip replacement, comprising a bracket, the bracket can adjust the upper and lower heights, the top of the bracket is provided with a support assembly, the support assembly includes a support ring, the bottom of the support ring is fixedly installed with a plurality of fixing rings, the inner side of the fixing ring is provided with a wire winding mechanism, the wire winding mechanism includes a wire winding drum, the top of the wire winding drum is fixedly installed with a lower locking column, the top of the lower locking column is provided with an upper locking column meshing with each other, the top of the upper locking column is fixedly installed with two movable rods, the top of the movable rod is fixedly installed with a top plate, the top of the top plate is provided with a protrusion, the top of the support ring is provided with a plurality of protective shell assemblies, the protective shell assembly includes a fixed shell, the surface of the fixed shell is engraved with scales, One end of a force measuring spring is fixedly installed on the inner side of the fixed shell, and a moving block is fixedly installed on the other end of the force measuring spring, an indicator plate is fixedly installed on the top of the moving block, and a rotatable pulley 2 is arranged on the side of the moving block away from the force measuring spring, a connecting rope is wound around the inner side of the take-up drum, and a detachable hook is arranged at one end of the connecting rope; a support assembly is configured to provide support for the winding mechanism and the protective shell assembly through a support ring; the winding mechanism is configured to realize the winding and releasing action of the connecting rope through the take-up drum, and lock the connecting rope by means of a lower locking column and an upper locking column; the protective shell assembly is configured to provide limited sliding for the moving block through the fixed shell, display the tension exerted on the connecting rope by means of a scale and an indicator plate, and prevent the tension from exceeding a threshold by means of the cooperation between the moving block and the protrusion.

[0009] Furthermore, the top of the support ring is provided with a plurality of receiving grooves, the inner side of the support ring is provided with a plurality of wire passing grooves, the inner side of the wire passing grooves near the top corner and the bottom corner are respectively provided with pulleys rotatably installed through bearings, and the bottom of the support ring is provided with a plurality of cylindrical grooves.

[0010] Furthermore, the wire winding mechanism also includes a turntable, which is fixedly mounted on the bottom of the wire winding drum, and the outer side of the turntable is rotatably mounted on the inner side of the fixed ring through a bearing. The wire winding drum is located on the inner side of the fixed ring, and a wire passing shell is fixedly mounted on one side of the fixed ring close to the center of the support ring, and the wire passing shell is communicated with the fixed ring.

[0011] Furthermore, the lower lock column and the upper lock column are both located on the inner side of the cylindrical groove, and a plurality of bevel teeth are provided on the side where the lower lock column and the upper lock column are close to each other, and the lower lock column and the upper lock column are meshed with each other through the bevel teeth. A pressing rod is fixedly installed on the bottom of the upper lock column, and the pressing rod passes through the inner side of the lower lock column, the take-up reel and the turntable.

[0012] Furthermore, a plurality of guide rods are fixedly installed on the top of the upper locking column, and one end of the guide rod away from the upper locking column passes through the inner side of the top wall of the cylindrical groove, the movable rod passes through the interior of the support ring, the top plate is located on the inner side of the storage groove, the protrusion is located on the top of the top plate close to the center of the support ring, and a plurality of springs are fixedly installed on the top of the upper locking column, and the springs are respectively located on the outside of the guide rod and the movable rod.

[0013] Furthermore, a support is fixedly installed at the bottom of the turntable, and a grab ring is rotatably installed on the outer side of the support.

[0014] Furthermore, a placement groove is provided on the top of the fixed shell, a glass plate is fixedly installed on the inner side of the placement groove, a sliding hole is penetrated through the inner side of the bottom wall of the placement groove, a scale is engraved on the inner side of the bottom wall of the placement groove and is located on one side of the sliding hole, limiting grooves are respectively provided on the inner walls on both sides of the fixed shell, a storage shell is fixedly installed on one side of the fixed shell close to the center of the support ring, one end of the second spring is fixedly installed on the inner wall of one side of the storage shell, and a retaining ring is fixedly installed on the other end of the second spring.

[0015] Furthermore, one end of the force measuring spring is fixedly installed on the inner wall of the fixed shell away from the center of the support ring, and limit plates are fixedly installed on both sides of the moving block, and the limit plates are respectively located on the inner sides of the limit grooves, the bottom of the moving block contacts the top of the support ring, the indicator plate passes through the inner side of the sliding hole, and two fixed plates are fixedly installed on the side of the moving block away from the force measuring spring, and pulley 2 is rotatably installed inside the two fixed plates.

[0016] Furthermore, one end of the connecting rope is fixedly installed on the inner side of the wire take-up drum, the connecting rope passes through the inner side of the wire housing and the wire groove, the connecting rope contacts the outer side of pulley one and pulley two, the other end of the connecting rope is located on the inner side of spring two, and the other end of the connecting rope is fixedly installed with a threaded end, the threaded end is located on the inner side of the retaining ring, and the threaded end is threadedly connected to the hook.

[0017] Beneficial effects of the present invention:

[0018] (1) The hip replacement retractor fixing device described in the present invention adopts the design of a support ring and a wire coiling mechanism, so that while the support ring provides support for the wire coiling mechanism, the blank area in the middle of the support ring can provide the surgeon with sufficient visual space and operating space, which is convenient for the surgeon to perform surgery. At the same time, the design of multiple wire coiling mechanisms can retract soft tissues in surgical areas in different directions, and the cooperation of the lower locking column and the upper locking column in the wire coiling mechanism can enable the medical staff to grasp the grab ring and rotate the rope collecting disk. After the connecting rope is tightened to a certain degree, the grab ring can be released to achieve self-locking of the connecting rope, which is convenient for the medical staff to operate and provides convenience for the surgery.

[0019] (2) The hook fixing device for hip replacement described in the present invention adopts a threaded hook, which is convenient for medical staff to select different types of hooks for surgery according to actual operation needs, and is convenient for disassembling and replacing the hook, thereby improving the convenience of the surgery. In combination with the storage shell, after the surgery is completed, the hook can be disassembled and the rope collection disk can be rotated to completely store the connecting rope into the device, thereby preventing the connecting rope from being scattered in the outside world and improving neatness.

[0020] (3) The hook fixing device for hip replacement described in the present invention adopts a design of measuring spring and scale, so that when using the hook, medical staff can determine the tension of the hook through the scale position corresponding to the indicator plate, which is convenient for medical staff to monitor the force applied to the hook in real time. In addition, through the design of the moving block and the protrusion, a threshold value is set for the tension of the connecting rope. When the tension of the connecting rope reaches the threshold value, the rope reel can be locked to continue rotating and retracting the rope, thereby avoiding excessive pulling of the soft tissue in the patient's surgical area and affecting the patient's recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the fixing device of the present invention;

[0023] Figure 2 It is a schematic diagram of a cross-sectional three-dimensional structure of a fixing device of the present invention;

[0024] Figure 3 For the present invention Figure 2 A schematic diagram of a partially enlarged three-dimensional structure at A;

[0025] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the support ring of the present invention;

[0026] Figure 5 It is a three-dimensional structural schematic diagram of the wire coiling mechanism of the present invention;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixing ring of the present invention;

[0028] Figure 7 It is a schematic diagram of the bottom three-dimensional structure of the turntable of the present invention;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the lower locking column of the present invention;

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the upper locking column of the present invention;

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the fixed shell of the present invention;

[0032] Fig.11 It is a schematic diagram of the three-dimensional structure of the moving block of the present invention;

[0033] Fig.12 It is a schematic diagram of the three-dimensional structure of the connecting rope of the present invention;

[0034] Fig.13 It is a schematic diagram of the three-dimensional structure of the fixing device of the present invention before use.

[0035] In the figure: 1, bracket; 2, support assembly; 21, support ring; 22, storage groove; 23, wire groove; 24, pulley 1; 25, cylindrical groove; 3, fixing ring; 4, wire housing; 5, wire winding mechanism; 51, turntable; 52, wire winding reel; 53, lower locking column; 54, upper locking column; 55, pressing rod; 56, guide rod; 57, movable rod; 58, top plate; 59, bump; 510, spring Spring one; 6. Support; 7. Grab ring; 8. Shell assembly; 81. Fixed shell; 82. Placement slot; 83. Scale; 84. Glass plate; 85. Slide hole; 86. Limiting slot; 87. Storage shell; 88. Spring two; 89. Retaining ring; 9. Force measuring spring; 10. Moving block; 11. Limiting plate; 12. Indicator plate; 13. Pulley two; 14. Connecting rope; 15. Threaded end; 16. Hook. DETAILED DESCRIPTION

[0036] In order to make the technical means, technical features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0037] Example: Figure 1-Figure 13 As shown, a hook fixing device for hip replacement described in the present invention includes a bracket 1, the bracket 1 can adjust the upper and lower heights, a support assembly 2 is arranged on the top of the bracket 1, and the support assembly 2 is assembled to provide support for the wire winding mechanism 5 and the shell assembly 8 through a support ring 21; the support assembly 2 includes a support ring 21, a plurality of fixing rings 3 are fixedly installed on the bottom of the support ring 21, a plurality of receiving grooves 22 are opened on the top of the support ring 21, a plurality of wire passing grooves 23 are opened on the inner side of the support ring 21, and pulleys 24 are rotatably installed on the inner side of the wire passing groove 23 near the top corner and the bottom corner through bearings, and a plurality of cylindrical grooves 25 are opened on the bottom of the support ring 21.

[0038] Specifically, the bracket 1 can provide stable support for the support ring 21, and the bracket 1 can be adjusted in height up and down, the support ring 21 can provide stable support for the fixed ring 3, the fixed ring 3 can provide bearing rotation support for the turntable 51, and provide a storage rotation space for the take-up reel 52, the storage groove 22 can provide space for the top plate 58 and the protrusion 59 to move up and down, the wire groove 23 can provide space for the connecting rope 14 to move, the wire groove 23 can provide rotation support for the pulley 24, so that the pulley 24 provides mobile support for the connecting rope 14, reducing the friction of the connecting rope 14, and the cylindrical groove 25 can provide space for the lower locking column 53 and the upper locking column 54 to move.

[0039] In this embodiment, a wire winding mechanism 5 is provided on the inner side of the fixed ring 3, and the wire winding mechanism 5 is equipped to realize the winding and releasing effect of the connecting rope 14 through the wire winding drum 52, and at the same time, the connecting rope 14 is locked by the lower locking column 53 and the upper locking column 54; the wire winding mechanism 5 includes a wire winding drum 52, and a lower locking column 53 is fixedly installed on the top of the wire winding drum 52, and an upper locking column 54 that meshes with each other is arranged on the top of the lower locking column 53, and the wire winding mechanism 5 also includes a turntable 51, which is fixedly installed on the bottom of the wire winding drum 52, and the outer side of the turntable 51 is rotatably installed on the inner side of the fixed ring 3 through a bearing, the wire winding drum 52 is located on the inner side of the fixed ring 3, and a wire passing shell 4 is fixedly installed on the side of the fixed ring 3 close to the center of the support ring 21, and the wire passing shell 4 is communicated with the fixed ring 3, and a pillar 6 is fixedly installed on the bottom of the turntable 51, and a grab ring 7 is rotatably installed on the outer side of the pillar 6.

[0040] Specifically, the wire take-up drum 52 can provide a storage space for the connecting rope 14, the wire take-up drum 52 is located on the inner side of the fixing ring 3, and the wire take-up drum 52 is located at the bottom of the support ring 21, the wire take-up drum 52 can provide stability for the lower locking column 53, the wire take-up drum 52 can provide a stable support for the turntable 51, the turntable 51 can provide a stable support for the pillar 6, the pillar 6 can provide a fulcrum for the turntable 51 to rotate, so that the user can drive the turntable 51 and the wire take-up drum 52 to rotate through the pillar 6, the pillar 6 can provide a rotation support for the grab ring 7, and in the process of driving the turntable 51 to rotate through the pillar 6, the grab ring 7 rotates relative to the pillar 6, so that the process of the user rotating the turntable 51 through the pillar 6 is smoother.

[0041] In this embodiment, two movable rods 57 are fixedly installed on the top of the upper lock column 54, and a top plate 58 is fixedly installed on the top of the movable rod 57. A protrusion 59 is provided on the top of the top plate 58. The lower lock column 53 and the upper lock column 54 are both located on the inner side of the cylindrical groove 25. A plurality of bevel teeth are provided on the side where the lower lock column 53 and the upper lock column 54 are close to each other. The lower lock column 53 and the upper lock column 54 are meshed with each other through the bevel teeth. A pressing rod 55 is fixedly installed on the bottom of the upper lock column 54. The pressing rod 55 passes through the lower lock column 53 and the take-up drum. 52 and the inner side of the turntable 51, a plurality of guide rods 56 are fixedly installed on the top of the upper locking column 54, and one end of the guide rod 56 away from the upper locking column 54 passes through the inner side of the top wall of the cylindrical groove 25, and the movable rod 57 passes through the interior of the support ring 21, the top plate 58 is located on the inner side of the storage groove 22, and the protrusion 59 is located on the top of the top plate 58 near the center of the support ring 21, and a plurality of springs 510 are fixedly installed on the top of the upper locking column 54, and the springs 510 are respectively located on the outside of the guide rod 56 and the movable rod 57.

[0042] Specifically, the upper locking column 54 and the lower locking column 53 can provide stable support for the bevel teeth, and the bevel teeth can use the resistance of the bevel to make the upper locking column 54 and the lower locking column 53 rotate relative to each other. At the same time, the bevel teeth can use the resistance of the right-angled side to lock the upper locking column 54 and the lower locking column 53. The upper locking column 54 can provide stable support for the movable rod 57. The movable rod 57 can not only provide a limiting effect for the upper locking column 54, but also provide stable support for the top plate 58. The top plate 58 can provide stable support for the protrusion 59. When the top plate 58 moves up and down in the storage groove 22, the highest position of the top plate 58 moving upward is the top of the top plate 58 The plane coincides with the top plane of the support ring 21, and the highest position of the protrusion 59 moving upward is when the protrusion 59 moves out of the inner side of the receiving groove 22, so that the protrusion 59 is higher than the top plane of the support ring 21, and the lowest position of the protrusion 59 moving downward is when the protrusion 59 completely enters the inner side of the receiving groove 22, so that the moving block 10 can prevent the protrusion 59 from moving upward through the resistance effect with the protrusion 59, and then the rope collecting drum cannot collect the rope. By limiting the tension threshold of the connecting rope 14, it can prevent medical staff from excessively pulling the hook 16, thereby avoiding excessive pulling of the soft tissue in the patient's surgical area and affecting the patient's recovery.

[0043] In this embodiment, a plurality of protective shell components 8 are arranged on the top of the support ring 21. The protective shell components 8 are assembled to provide limited sliding for the moving block 10 through the fixed shell 81, and the scale 83 cooperates with the indicator plate 12 to display the tension exerted on the connecting rope 14. At the same time, the moving block 10 cooperates with the protrusion 59 to prevent the tension from exceeding the threshold. The protective shell component 8 includes a fixed shell 81, and the surface of the fixed shell 81 is engraved with a scale 83. The top of the fixed shell 81 is provided with a placement groove 82 for placing A glass plate 84 is fixedly installed on the inner side of the placement groove 82, a sliding hole 85 is penetrated through the inner side of the bottom wall of the placement groove 82, a scale 83 is engraved on the inner side of the bottom wall of the placement groove 82, and is located on one side of the sliding hole 85, and limiting grooves 86 are respectively provided on the inner walls on both sides of the fixed shell 81. A storage shell 87 is fixedly installed on one side of the fixed shell 81 close to the center of the support ring 21, and one end of a spring 88 is fixedly installed on the inner wall of one side of the storage shell 87, and a retaining ring 89 is fixedly installed on the other end of the spring 88.

[0044] Specifically, the fixed shell 81 can provide a space for the placement groove 82, and the placement groove 82 can provide a space for the scale 83. The scale 83 needs to be reasonably scaled so that the scale 83 can correspond to the tension of the connecting rope 14. The placement groove 82 can provide a placement space for the glass plate 84, and the glass plate 84 will not hinder the medical staff from observing the scale 83. At the same time, the top of the fixed shell 81 can be sealed to prevent objects from entering the inner side of the fixed shell 81 through the through hole. The sliding hole 85 can provide a sliding space for the indicator plate 12, and the fixed shell 81 can be a limit The groove 86 provides an opening space, and the limit groove 86 can cooperate with the limit plate 11 to provide a limited sliding function for the moving block 10. The fixed shell 81 can provide a stable support for the storage shell 87. The storage shell 87 can provide a storage space for the threaded end 15. The storage shell 87 can provide a placement space for the spring 2 88. When the user pushes the pressing rod 55 upward to release the lock on the connecting rope 14, the spring 2 88 can use its own elastic force to push the connecting end out of the inner side of the storage shell 87 through the retaining ring 89, making it convenient for the user to grab the threaded end 15 to pull out the connecting rope 14.

[0045] In this embodiment, one end of the force measuring spring 9 is fixedly installed on the inner side of the fixed shell 81, and the other end of the force measuring spring 9 is fixedly installed with a moving block 10, and an indicating plate 12 is fixedly installed on the top of the moving block 10. A rotatable pulley 13 is provided on the side of the moving block 10 away from the force measuring spring 9, and a connecting rope 14 is wound around the inner side of the take-up drum 52, and a detachable hook 16 is provided on one end of the connecting rope 14; one end of the force measuring spring 9 is fixedly installed on the inner wall of the fixed shell 81 away from the center of the support ring 21, and limiting plates 11 are fixedly installed on both sides of the moving block 10, and the limiting plates 11 are respectively located on the inner sides of the limiting grooves 86, and the bottom of the moving block 10 contacts the top of the support ring 21, and the indicating plate 12 passes through the inner side of the sliding hole 85. Two fixed plates are fixedly installed on the side of the moving block 10 away from the force measuring spring 9, and the pulley 13 is rotatably installed inside the two fixed plates.

[0046] Specifically, the fixed shell 81 can provide a placement space for the force measuring spring 9, and the force measuring spring 9 can provide a balancing force for the moving block 10, so that the force of the pulley 13 and the force measuring spring 9 acting on the moving block 10 are equal, and then the magnitude of the tension of the connecting rope 14 can be determined through the indicator plate 12 and the scale 83.

[0047] In this embodiment, one end of the connecting rope 14 is fixedly installed on the inner side of the wire take-up drum 52, the connecting rope 14 passes through the inner side of the wire housing 4 and the wire groove 23, the connecting rope 14 contacts the outer sides of the pulley 1 24 and the pulley 2 13, and the other end of the connecting rope 14 is located on the inner side of the spring 2 88. The other end of the connecting rope 14 is fixedly installed with a threaded end 15, the threaded end 15 is located on the inner side of the retaining ring 89, and the threaded end 15 is threadedly connected to the hook 16.

[0048] Specifically, the connecting rope 14 can provide a stable support for the threaded end 15, and the threaded end 15 can provide a threaded connection for the hook 16, which is convenient for medical personnel to disassemble and replace the hook 16. Different types of hooks 16 can be selected according to the actual surgical situation. At the same time, the detachability of the hook 16 enables the device to completely store the connecting rope 14 after use, thereby reducing the situation where the hook 16 protrudes when the device is not in use, thereby improving neatness.

[0049] Working principle: The initial state is as follows Fig.13As shown, the patient is in a side-lying position, and the medical staff places the two brackets 1 on both sides of the patient respectively during use, and adjusts the height of the bracket 1 to adjust the support ring 21 to a height slightly higher than the patient's hip joint that requires surgery. Then the medical staff presses the pressing rod 55 upward according to the direction of the hook as needed, so that the pressing rod 55 moves upward under the action of external force, and the pressing rod 55 drives the upper locking column 54 to move upward, so that the upper locking column 54 is separated from the bevel teeth of the lower locking column 53, thereby releasing the lock on the lower locking column 53 and also releasing the lock on the rope collection drum. The spring 2 88 pushes the retaining ring 89 in the direction away from the fixed shell 81 under its own elastic force, so that the retaining ring 89 drives the threaded end 15 to move out of the inner side of the receiving shell 87. The medical staff grabs the threaded end 15 and pulls it outward to untie the connecting rope 14 from the inner side of the rope receiving disk, pulls the connecting rope 14 out of the inner side of the fixed shell 81, grabs the threaded end 15 and moves it to the surgical position. The medical staff releases the pressing rod 55, so that the upper locking column 54 is reset under the action of gravity and the elastic force of the spring 1 510, and meshes with the lower locking column 53 again;

[0050] The medical staff threadably connects the pulled-out threaded end 15 with the hook 16, and then hooks the hook 16 on the opening of the patient's surgery. The medical staff grabs the grab ring 7 and rotates it, so that the grab ring 7 drives the turntable 51 to rotate through the support 6 under the action of external force, and the turntable 51 drives the take-up drum 52 to rotate to take up the connecting rope 14, so that the connecting rope 14 is gradually wound around the inner side of the take-up drum 52, and the connecting rope 14 is received by the connecting rope 14 so that the connecting rope 14 drives the hook 16 to move toward the inner wall of the support ring 21, and the connecting rope 14 is stretched and tightened under the dual action of the take-up drum and the hook 16. , the medical staff continues to hold the grasping ring 7 and rotates it. The connecting rope 14 drives the pulley 13 to move to a position close to the center of the supporting ring 21 under the tension state. The pulley 13 drives the moving block 10 to move, so that the moving block 10 drives the force measuring spring 9 to stretch. The force measuring spring 9 provides a balancing reaction force for the moving block 10, so that the moving block 10 is in a force balance state. At the same time, the moving block 10 drives the indicator plate 12 to move. The medical staff determines the tension of the connecting rope 14 through the position of the scale 83 corresponding to the indicator plate 12, thereby avoiding damage to the soft tissue in the surgical area;

[0051] When the rotating disk 51 rotates to drive the rope collecting disk to collect the rope, the rope collecting disk drives the lower locking column 53 to rotate, so that the lower locking column 53 uses the inclined surface of the inclined surface teeth to drive the upper locking column 54 to move upward, and the upper locking column 54 cannot rotate under the limiting effect of the guide rod 56 and the movable rod 57. After the lower locking column 53 rotates a distance of the inclined surface teeth, the upper locking column 54 moves downward again under the action of the spring 1 510, so that the upper locking column 54 moves up and down reciprocatingly. When the strength of the connecting rope 14 is determined, the medical staff releases the grab ring 7. At this time, the upper locking column 54 uses the resistance effect of the right-angled side of the inclined surface teeth to limit the lower locking column 53, preventing the rope collecting disk from driving the lower locking column 53 to rotate under the pulling force of the connecting rope 14, thereby realizing self-locking;

[0052] When the upper locking column 54 reciprocates up and down, the upper locking column 54 drives the top plate 58 to move up and down through the movable rod 57. When the top plate 58 drives the protrusion 59 to move upward to the highest point, the protrusion 59 moves out of the inner side of the receiving groove 22 and exceeds the top plane of the support ring 21. When the top plate 58 drives the protrusion 59 to move downward to the lowest point, the protrusion 59 completely enters the inner side of the receiving groove 22. Therefore, when the medical staff tightens the connecting rope 14, when the tension exerted on the connecting rope 14 reaches the maximum value of the scale 83, the connecting rope 14 drives the moving block 10 to move to the top of the protrusion 59 through the pulley 2 13, so that the moving block 10 hinders the protrusion 59 from moving up and down, and then hinders the upper locking column 54 from moving up and down, so that the rope collecting disk cannot continue to rotate. By limiting the tension threshold of the connecting rope 14, it can prevent medical staff from excessively pulling the hook 16, thereby avoiding excessive pulling of the soft tissue in the patient's surgical area and affecting the patient's recovery.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hook fixing device for hip replacement, comprising a bracket (1), wherein the bracket (1) is adjustable in height, and characterized in that: A support assembly (2) is arranged on the top of the bracket (1), and the support assembly (2) includes a support ring (21), and a plurality of fixing rings (3) are fixedly installed on the bottom of the support ring (21), and a wire winding mechanism (5) is arranged on the inner side of the fixing ring (3), and the wire winding mechanism (5) includes a wire winding drum (52), and a lower locking column (53) is fixedly installed on the top of the wire winding drum (52), and an upper locking column (54) engaged with each other is arranged on the top of the lower locking column (53), and two movable rods (57) are fixedly installed on the top of the movable rod (57), and a top plate (58) is fixedly installed on the top of the top plate (58), and a protrusion (59) is arranged on the top of the top plate (58). ), a plurality of protective shell components (8) are arranged on the top of the support ring (21), the protective shell components (8) include a fixed shell (81), the surface of the fixed shell (81) is engraved with a scale (83), one end of a force measuring spring (9) is fixedly installed on the inner side of the fixed shell (81), a moving block (10) is fixedly installed on the other end of the force measuring spring (9), an indicating plate (12) is fixedly installed on the top of the moving block (10), a rotatable pulley 2 (13) is arranged on the side of the moving block (10) away from the force measuring spring (9), a connecting rope (14) is wound around the inner side of the take-up drum (52), and a detachable hook (16) is arranged on one end of the connecting rope (14); A support assembly (2) which is configured to provide support for the wire coiling mechanism (5) and the casing assembly (8) via a support ring (21); A wire coiling mechanism (5) is configured to realize the function of retracting and releasing the connecting rope (14) through a wire reel (52), and simultaneously lock the connecting rope (14) using a lower locking column (53) and an upper locking column (54); The protective shell assembly (8) is assembled to provide limited sliding for the moving block (10) through the fixed shell (81), and uses the scale (83) and the indicator plate (12) to display the tension exerted on the connecting rope (14), and uses the moving block (10) and the protrusion (59) to prevent the tension from exceeding the threshold.

2. The retractor fixation device for hip replacement according to claim 1, characterized in that: The top of the support ring (21) is provided with a plurality of receiving grooves (22), the inner side of the support ring (21) is provided with a plurality of wire-passing grooves (23), the inner sides of the wire-passing grooves (23) near the top corner and the bottom corner are provided with pulleys (24) rotatably mounted via bearings, and the bottom of the support ring (21) is provided with a plurality of cylindrical grooves (25).

3. The retractor fixation device for hip replacement according to claim 2, characterized in that: The wire winding mechanism (5) further comprises a rotating disk (51), the rotating disk (51) being fixedly mounted on the bottom of the wire winding disk (52), and the outer side of the rotating disk (51) being rotatably mounted on the inner side of the fixing ring (3) via a bearing, the wire winding disk (52) being located on the inner side of the fixing ring (3), and a wire passing housing (4) being fixedly mounted on one side of the fixing ring (3) close to the center of the supporting ring (21), and the wire passing housing (4) being in communication with the fixing ring (3).

4. The retractor fixation device for hip replacement according to claim 3, characterized in that: The lower lock column (53) and the upper lock column (54) are both located on the inner side of the cylindrical groove (25); a plurality of bevel teeth are provided on the side where the lower lock column (53) and the upper lock column (54) are close to each other; the lower lock column (53) and the upper lock column (54) are meshed with each other through the bevel teeth; a pressing rod (55) is fixedly installed at the bottom of the upper lock column (54); the pressing rod (55) passes through the inner side of the lower lock column (53), the take-up drum (52) and the rotating disk (51).

5. The retractor fixation device for hip replacement according to claim 4, characterized in that: A plurality of guide rods (56) are fixedly mounted on the top of the upper locking column (54), one end of the guide rod (56) away from the upper locking column (54) passes through the inner side of the top wall of the cylindrical groove (25), the movable rod (57) passes through the interior of the support ring (21), the top plate (58) is located on the inner side of the storage groove (22), the protrusion (59) is located at the top of the top plate (58) close to the center of the support ring (21), and a plurality of springs (510) are fixedly mounted on the top of the upper locking column (54), and the springs (510) are respectively located on the outer sides of the guide rod (56) and the movable rod (57).

6. The retractor fixation device for hip replacement according to claim 3, characterized in that: A support (6) is fixedly mounted on the bottom of the rotating disk (51), and a grab ring (7) is rotatably mounted on the outer side of the support (6).

7. The retractor fixation device for hip replacement according to claim 5, characterized in that: The top of the fixed shell (81) is provided with a placement groove (82), a glass plate (84) is fixedly installed on the inner side of the placement groove (82), a sliding hole (85) is penetrated through the inner side of the bottom wall of the placement groove (82), a scale (83) is engraved on the inner side of the bottom wall of the placement groove (82) and is located on one side of the sliding hole (85), and limiting grooves (86) are respectively provided on the inner walls on both sides of the fixed shell (81), a storage shell (87) is fixedly installed on one side of the fixed shell (81) close to the center of the support ring (21), one end of a second spring (88) is fixedly installed on the inner wall of one side of the storage shell (87), and a retaining ring (89) is fixedly installed on the other end of the second spring (88).

8. The retractor fixation device for hip replacement according to claim 7, characterized in that: One end of the force measuring spring (9) is fixedly mounted on the inner wall of the fixed shell (81) away from the center of the support ring (21), and the limiting plates (11) are fixedly mounted on both sides of the moving block (10), and the limiting plates (11) are respectively located on the inner sides of the limiting grooves (86), the bottom of the moving block (10) contacts the top of the support ring (21), the indicating plate (12) passes through the inner side of the sliding hole (85), and two fixed plates are fixedly mounted on the side of the moving block (10) away from the force measuring spring (9), and the second pulley (13) is rotatably mounted inside the two fixed plates.

9. The retractor fixation device for hip replacement according to claim 8, characterized in that: One end of the connecting rope (14) is fixedly mounted on the inner side of the wire take-up drum (52), the connecting rope (14) passes through the inner side of the wire housing (4) and the wire groove (23), the connecting rope (14) contacts the outer sides of the first pulley (24) and the second pulley (13), the other end of the connecting rope (14) is located on the inner side of the second spring (88), the other end of the connecting rope (14) is fixedly mounted with a threaded end (15), the threaded end (15) is located on the inner side of the retaining ring (89), and the threaded end (15) is threadedly connected to the hook (16).

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