Shoulder arthroscopy operation traction device

Abstract

The invention relates to the technical field of shoulder arthroscopy operations, in particular to a shoulder arthroscopy operation traction device which comprises a clamping mounting seat, a clamping base is slidably connected to the outer side surface of the clamping mounting seat, and clamping claws are fixedly connected to the outer side surfaces of the clamping mounting seat and the clamping base. A folding support used for folding and supporting is arranged on the surface of the top of the clamping installation base, a magnetic attraction buckle interlocked with the folding support is arranged on the surface of the outer side of the clamping installation base, a traction winding column used for controlling the arm to ascend, descend and rotate is arranged on the surface of the outer side of the top extending shell, the folding support is folded in the initial state, the occupied space is small, and operation is convenient. The storage and the transportation are convenient. When in use, the traction device is unfolded and can be adjusted to a proper height and position as required, so that the space utilization rate is effectively improved, the traction device is particularly suitable for an environment with a limited operation space, convenience is provided for operation, the traction winding column is relatively simple and convenient to operate, and a doctor can quickly adjust the traction height and angle.

Description

Technical Field

[0001] The present invention relates to the technical field of arthroscopic shoulder surgery, and particularly to a traction device for arthroscopic shoulder surgery. Background Art

[0002] When performing arthroscopic shoulder surgery, the lateral decubitus position is adopted, and the hand needs to be suspended. Currently, a sling is used to fix the arm, a pulley is used, and 3000 ml of normal saline is used for the gravity at the back. Its functions are to expose the surgical field of view. By lifting and appropriately traction the arm, the muscles, ligaments and other tissues around the shoulder joint can be stretched, so as to expand the shoulder joint space, better expose the structures inside the joint, facilitate the doctor's surgical operation, and clearly observe and handle the diseased part; stabilize the surgical site: keeping the arm in a specific position and angle helps to stabilize the shoulder joint, reduce the shaking and movement of the arm during the operation, provide a stable basis for the surgical operation, and improve the accuracy and safety of the operation.

[0003] During the use of the existing traction device, first, in the preoperative preparation stage, it takes a long time to place the body position and fix the position of the arm. The fixing strap used to fix the arm lacks softness, and cotton pads still need to be used inside to prevent accidental injuries. After fixing, bandages still need to be used to wind and fix the outside. It cannot be completed by a single person and consumes a lot of manpower.

[0004] In view of this, we propose a traction device for arthroscopic shoulder surgery. Summary of the Invention

[0005] The purpose of the present invention is to provide a traction device for arthroscopic shoulder surgery to solve the problems existing in the existing traction device for arthroscopic shoulder surgery in the above-mentioned background art. To achieve the above purpose, the present invention provides the following technical solution: A traction device for arthroscopic shoulder surgery includes a clamping mounting base, a clamping base is slidably connected to the outer surface of the clamping mounting base, clamping claws are fixedly connected to the outer surfaces of the clamping mounting base and the clamping base, a folding bracket for folding and supporting is arranged on the top surface of the clamping mounting base, an extension housing is installed on the outer surface of the folding bracket, a magnetic snap is arranged on the outer surface of the clamping mounting base, a traction winding column is arranged on the outer surface of the extension housing, and a pulley is installed on the outer surface of the extension housing.

[0006] Preferably, the folding bracket includes a bottom bracket A, which is rotatably connected to the inner surface of the clamping mounting seat. The outer surface of the bottom bracket A is rotatably connected to a connecting bracket. The other end of the bottom bracket A is rotatably connected to a lifting bracket. The inner surface of the clamping mounting seat is rotatably connected to a bottom bracket B. One end of the connecting bracket is hinged to a stress bracket. The other end of the stress bracket is rotatably connected to a parallel bracket. A shaft fixing block is rotatably connected to the rotational connection between the bottom bracket A and the lifting bracket. A connecting crossbeam is fixedly connected to the outer surface of the shaft fixing block. A clamping inclined block is slidably connected to the inner surface of the connecting crossbeam. A return spring is sleeved on the bottom surface of the clamping inclined block. A shaft movable block is rotatably connected to the rotational connections of the connecting bracket, the bottom bracket B, and the stress bracket.

[0007] Preferably, one end of the parallel bracket is rotatably connected to an extended inner wall. An activity groove is formed on the outer surface of the extended inner wall. An extended outer shell is slidably connected to the outer surface of the extended inner wall. A clamping block is slidably connected to the inner surface of the extended outer shell.

[0008] Preferably, both ends of the connecting bracket are respectively rotatably connected to the bottom bracket A and the bottom bracket B. Both ends of the lifting bracket are respectively rotatably connected to the bottom bracket A and the extended inner wall. One end of the stress bracket is rotatably connected to both the bottom bracket B and the connecting bracket. The clamping block is slidably connected to the inner surface of the activity groove. The connecting crossbeam passes through the shaft movable block and is slidably connected to its inner wall.

[0009] Preferably, the magnetic snap includes a linkage bracket and a magnetic unlocking buckle. The linkage bracket is sleeved on the outer surface of the connecting crossbeam. Top shells are fixedly connected to both ends of the clamping mounting seat. Annularly distributed clamping ball beads are slidably connected to the inner surface of the top shell. An inner magnetic shell is slidably connected to the inner surface of the top shell. A pressing block is slidably connected to the inner surface of the inner magnetic shell. A compression spring is fixedly connected to the bottom surface of the pressing block. An inner sliding groove is formed on the inner surface of the pressing block. An activity magnet is slidably connected to the inner surface of the pressing block. A pressing rod is fixedly connected to the top surface of the activity magnet. An inner lifting seat is fixedly connected to the outer surface of the pressing rod. An activity ball bead is slidably connected to the outer surface of the inner lifting seat. A tension spring is fixedly connected to the top surface of the inner lifting seat. Limiting columns are symmetrically fixedly connected to the top surface of the clamping base. Bottom bases are fixedly connected to both ends of the clamping base. Insertion clamping columns are fixedly connected to the top surface of the bottom base. Fixed magnets are fixedly connected to both ends of the clamping base.

[0010] Preferably, a conical groove is formed on the inner surface of the top shell. The clamping ball is slidably connected to the inner surface of the inner sliding groove. The two ends of the extrusion spring are respectively fixedly connected to the pressing block and the inner magnetic shell. The inner lifting seat is slidably connected to the inner surface of the pressing block. The inner sliding groove is W-shaped. The limiting upright column penetrates through the clamping mounting seat and is slidably connected to its inner wall. The two ends of the stretching spring are respectively fixedly connected to the inner surface of the inner lifting seat and the pressing block.

[0011] Preferably, the traction winding column includes a covering shell, which is fixedly connected to the outer surface of the extending shell. A limiting sliding groove is formed on the outer surface of the covering shell. A driving cylinder is fixedly connected to the outer surface of the covering shell. A motor slider is slidably connected to the inner surface of the limiting sliding groove. A driving motor is fixedly connected to the inner surface of the motor slider. An input gear is fixedly connected to the output end of the driving motor. Symmetrically distributed winding worm wheels are rotatably connected to the inner surface of the extending shell. A driving worm is engaged with the outer surface of the winding worm wheel. The outer surface of the driving worm is rotatably connected to an inner installation groove. A switching arm is rotatably connected to the inner surface of the covering shell. A motor sliding groove is formed on the outer surface of the switching arm. The other end of the switching arm is rotatably connected to a rotating shaft push block. Symmetrically distributed reverse gears are rotatably connected to the inner surface of the extending shell. A meshing gear A is fixedly connected to one end of the reverse gear. A gear input shaft is slidably connected to the inner surface of the inner installation groove 54. A same-direction gear is fixedly connected to the outer surface of the gear input shaft. Symmetrically distributed meshing gears B are fixedly connected to the outer surface of the gear input shaft.

[0012] Preferably, a traction rope is fixedly connected to the outer surface of the winding worm wheel. One end of the traction rope is fixedly connected to a wrapping pad. Symmetrically distributed pulleys are rotatably connected to the top surface of the extending shell.

[0013] Preferably, the output shaft of the driving motor is slidably connected to the inner surface of the motor sliding groove. The rotating shaft push block is slidably connected to the outer surface of the gear input shaft. The input gear, the reverse gear, and the reverse gear are all bevel gears. The input gear is engaged with the reverse gear and the same-direction gear. The inner installation grooves are symmetrically distributed and fixedly connected to the inner surface of the extending shell. The driving worm is fixedly connected to the meshing gear B. The meshing gear A is engaged with the meshing gear B. The traction rope is slidably connected to the outer surface of the pulley and is wound around the outer surface of the winding worm wheel.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, through the provision of a folding bracket, the folding bracket is similar to a scissor lift. By utilizing the amplification effect between the force-bearing bracket and the connecting bracket, a larger rotation angle can be set for the force-bearing bracket and the lifting bracket, increasing the height after deployment. After deployment, the force-bearing bracket and the connecting bracket are collinear, enhancing stability. In the initial state, the folding bracket is retracted, occupying a small space and facilitating storage and transportation. When in use, it is deployed and can be adjusted to a suitable height and position as needed, effectively improving the space utilization rate, especially suitable for environments with limited surgical space.

[0015] In the present invention, the folding bracket and the magnetic snap are locked with each other to maintain the stability of the folding bracket after deployment, and a quick-release structure of the push-button type is adopted to achieve quick installation and disassembly.

[0016] In the present invention, through the provision of a traction winding column, simultaneous winding or unwinding of the traction ropes on both sides of the wrapping pad can be achieved, thereby controlling the lifting of the arm; or the traction ropes on both sides can be wound and unwound in a one-way manner to achieve the flipping of the arm. This flexible traction adjustment method can meet various requirements for the position and angle of the arm during surgery, facilitating surgical operations. The operation of the traction winding column is relatively simple and convenient, and the doctor can quickly perform traction adjustment without a complex operation process, saving surgical time and improving surgical efficiency. At the same time, its stable traction effect can also ensure the smooth progress of the surgery and reduce surgical interruptions or delays caused by traction problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic side view of the overall structure of the present invention; Figure 2 is a front view of the folding bracket of the present invention; Figure 3 is a folding flow chart of the folding bracket of the present invention; Figure 4 is a schematic side view of the overall structure of the folding bracket of the present invention; Figure 5 is a schematic diagram of the cooperating structure of the shaft fixing block, the connecting cross beam, and the shaft movable block of the present invention; Figure 6 of the present invention Figure 1 is an enlarged view of part A; Figure 7 is a schematic diagram of the cooperating structure of the various components of the magnetic snap of the present invention; Figure 8 of the present invention Figure 5 is an enlarged view of part B; Figure 9 is a schematic cross-sectional view of the internal structure of the magnetic snap of the present invention; Figure 10 is a schematic diagram of the cooperating structure of the push rod, the inner lifting seat, and the movable ball of the present invention; Figure 11 Schematic diagram of the mutual cooperation structure of the inner lifting seat and the pressing block of the present invention; Figure 12 Schematic diagram of the mutual cooperation structure of the extended inner wall, extended outer shell, covering outer shell and pulley of the present invention; Figure 13 Schematic diagram of the mutual cooperation structure of the extended inner wall and extended outer shell of the present invention; Figure 14 Schematic diagram of the mutual cooperation structure of the extended outer shell and the traction winding column of the present invention; Figure 15 For the present invention Figure 14 Enlarged view at C in; Figure 16 Schematic diagram of the mutual cooperation structure of each component of the traction winding column of the present invention; Figure 17 Schematic diagram of the mutual cooperation structure of the input gear and the reverse gear of the present invention; Figure 18 Schematic diagram of the mutual cooperation structure of the input gear and the same-direction gear of the present invention.

[0018] In the figure: 1. Clamping mounting seat; 11. Clamping base; 12. Clamping claw; 2. Folding bracket; 21. Bottom bracket A; 211. Connecting bracket; 212. Lifting bracket; 22. Bottom bracket B; 23. Force-bearing bracket; 231. Parallel bracket; 24. Shaft fixing block; 241. Connecting cross beam; 242. Engaging inclined block; 243. Return spring; 25. Shaft movable block; 31. Extended inner wall; 311. Movable groove; 32. Extended outer shell; 321. Engaging block; 4. Magnetic snap; 41. Linkage bracket; 411. Top outer shell; 4111. Engaging ball bead; 4112. Inner magnetic shell; 41121. Extrusion spring; 4113. Pressing block; 41131. Inner sliding groove; 412. Movable magnet; 4121. Pressing rod; 4122. Inner lifting seat; 41221. Movable ball bead; 4123. Tensile spring; 42. Limit column; 421. Bottom base; 422. Insertion clamping column; 423. Fixed magnet; 43. Magnetic unlocking buckle; 5. Traction winding column; 51. Covering outer shell; 511. Limit sliding groove; 512. Driving cylinder; 513. Motor slider; 52. Driving motor; 521. Input gear; 53. Winding worm gear; 531. Active worm; 54. Inner installation groove; 541. Switching arm; 5411. Motor sliding groove; 542. Rotating shaft push block; 55. Reverse gear; 551. Engaging gear A; 56. Gear input shaft; 561. Same-direction gear; 562. Engaging gear B; 61. Traction rope; 62. Wrapping pad; 63. Pulley. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 to 18 , the present invention provides a technical solution: a shoulder arthroscopic surgery traction device, including a clamping mounting base 1, a clamping base 11 is slidably connected to the outer surface of the clamping mounting base 1, clamping claws 12 are fixedly connected to the outer surfaces of the clamping mounting base 1 and the clamping base 11, a folding bracket 2 is arranged on the top surface of the clamping mounting base 1, an extension housing 32 is installed on the outer surface of the folding bracket 2, a magnetic snap 4 is arranged on the outer surface of the clamping mounting base 1, a traction winding column 5 is arranged on the outer surface of the extension housing 32, and a pulley 63 is installed on the outer surface of the extension housing 32.

[0021] The folding bracket 2 includes a bottom bracket A21, the bottom bracket A21 is rotatably connected to the inner surface of the clamping mounting base 1, a connecting bracket 211 is rotatably connected to the outer surface of the bottom bracket A21, the other end of the bottom bracket A21 is rotatably connected to a lifting bracket 212, a bottom bracket B22 is rotatably connected to the inner surface of the clamping mounting base 1, one end of the connecting bracket 211 is hingedly connected to a stress bracket 23, the other end of the stress bracket 23 is rotatably connected to a parallel bracket 231, a shaft fixing block 24 is rotatably connected to the rotational connection between the bottom bracket A21 and the lifting bracket 212, a connecting cross beam 241 is fixedly connected to the outer surface of the shaft fixing block 24, a clamping inclined block 242 is slidably connected to the inner surface of the connecting cross beam 241, a return spring 243 is sleeved on the bottom surface of the clamping inclined block 242, and a shaft movable block 25 is rotatably connected to the rotational connections of the connecting bracket 211, the bottom bracket B22, and the stress bracket 23.

[0022] One end of the parallel bracket 231 is rotatably connected to an extension inner wall 31, an activity groove 311 is opened on the outer surface of the extension inner wall 31, an extension housing 32 is slidably connected to the outer surface of the extension inner wall 31, and a clamping block 321 is slidably connected to the inner surface of the extension housing 32.

[0023] Both ends of the connecting bracket 211 are respectively rotatably connected to the bottom bracket A21 and the bottom bracket B22, both ends of the lifting bracket 212 are respectively rotatably connected to the bottom bracket A21 and the extension inner wall 31, one end of the stress bracket 23 is rotatably connected to both the bottom bracket B22 and the connecting bracket 211, the clamping block 321 is slidably connected to the inner surface of the activity groove 311, and the connecting cross beam 241 passes through the shaft movable block 25 and is slidably connected to its inner wall; By setting the folding bracket 2, during use, the entire folding bracket 2 is similar to a scissor lift. However, in order to increase the folding efficiency, the amplifying effect between the force-bearing bracket 23 and the connecting bracket 211 is utilized to set a larger rotation angle between the force-bearing bracket 23 and the lifting bracket 212, so that the extended inner wall 31 changes from a horizontal state to a vertical state after unfolding, thereby increasing the height after unfolding and reducing the height when folded. In addition, after unfolding, the force-bearing bracket 23 and the connecting bracket 211 are collinear, thereby increasing stability. During the folding process, the shaft fixing block 24, the shaft movable block 25 and the rotation connection therewith are always parallel, which is used to change the spacing to adjust the folding of the entire device. In the initial state, the folding bracket 2 is folded, and the shaft fixing block 24 and the shaft movable block 25 are far apart. When the folding bracket 2 is unfolded, the shaft fixing block 24 and the shaft movable block 25 will gradually approach each other, and the shaft movable block 25 moves on the connecting crossbeam 241 until it contacts the engaging bevel block 242. At this time, it contacts the inclined surface of the engaging bevel block 242, pressing it into the connecting crossbeam. After the crossbeam 241 is connected and disengaged from the engaging bevel block 242, the engaging bevel block 242 is lifted up by the action of the return spring 243. At this time, the straight edge of the engaging bevel block 242 contacts the shaft movable block 25. The shaft movable block 25 can no longer press the engaging bevel block 242 down, forming a lock. The rear of the shaft movable block 25 is supported by the linkage bracket 41 and is also unable to move. The position of the shaft movable block 25 is locked, and the distance between the shaft fixed block 24 and the shaft movable block 25 is locked, so that the folding bracket 2 is locked in the current state. The extension shell 32 can slide on the extension inner wall 31, and the moving distance is limited by the locking block 321 sliding in the movable groove 311. The movable groove 311 is divided into a long side and a short side, which are connected in the middle. In the initial state, the locking block 321 slides in the long side, driving the extension shell 32 to move a long distance on the extension inner wall 31. When it reaches the top, it can move from the middle connection to the short side. At this time, the locking block 321 input will drop a distance, but the dropping distance is limited, and the height is locked. At this time, the extension shell 32 is high on the extension inner wall 31, thereby changing the overall length of the extension shell 32 and the extension inner wall 31, and further increasing the height after expansion.

[0024] The magnetic snap 4 includes a linkage bracket 41 and a magnetic unlocking buckle 43. The linkage bracket 41 is sleeved on the outer surface of the connecting cross beam 241. Both ends of the clamping mounting base 1 are fixedly connected with a top housing 411. The inner surface of the top housing 411 is slidably connected with annularly distributed engaging ball beads 4111. The inner surface of the top housing 411 is slidably connected with an inner magnetic shell 4112. The inner surface of the inner magnetic shell 4112 is slidably connected with a pressing block 4113. The bottom surface of the pressing block 4113 is fixedly connected with a compression spring 41121. The inner surface of the pressing block 4113 is provided with an inner sliding groove 41131. The inner surface of the pressing block 4113 is slidably connected with a movable magnet 412. The top surface of the movable magnet 412 is fixedly connected with a pressing rod 4121. The outer surface of the pressing rod 4121 is fixedly connected with an inner lifting seat 4122. The outer surface of the inner lifting seat 4122 is slidably connected with a movable ball bead 41221. The top surface of the inner lifting seat 4122 is fixedly connected with a tension spring 4123. The top surface of the clamping base 11 is fixedly connected with symmetrically distributed limiting columns 42. Both ends of the clamping base 11 are fixedly connected with a bottom base 421. The top surface of the bottom base 421 is fixedly connected with an insertion card post 422. Both ends of the clamping base 11 are fixedly connected with a fixed magnet 423.

[0025] The inner surface of the top housing 411 is provided with a tapered groove. The engaging ball beads 4111 are slidably connected with the inner surface of the inner sliding groove 41131. Both ends of the compression spring 41121 are fixedly connected with the pressing block 4113 and the inner magnetic shell 4112 respectively. The inner lifting seat 4122 is slidably connected with the inner surface of the pressing block 4113. The inner sliding groove 41131 is W-shaped. The limiting columns 42 penetrate through the clamping mounting base 1 and are slidably connected with its inner wall. Both ends of the tension spring 4123 are fixedly connected with the inner surface of the inner lifting seat 4122 and the pressing block 4113 respectively; Through the setting of the magnetic snap 4, during the use process, the linkage bracket 41 is connected to the connecting cross beam 241. After the folding bracket 2 is unfolded, the connecting cross beam 241 rises and drives the linkage bracket 41 to rise. In this way, the upper and lower clamping claws 12 can clamp the hospital bed. And during the process that the clamping mounting seat 1 and the clamping base 11 approach each other, the insertion column 422 is inserted into the inner part of the top shell 411 and contacts the engaging ball 4111. Since the inner part of the top shell 411 is conical, the engaging ball 4111 will descend under the influence of gravity. After descending, the engaging balls 4111 approach each other and the gap decreases. When the insertion column 422 is inserted upward, it will push the engaging ball 4111 open. When descending, due to a large number of grooves being opened on the surface of the insertion column 422 to increase friction, it will pull the engaging ball 4111 downward. And the pressing block 4113 will also push the inner magnetic shell 4112 upward through the compression spring 41121, causing the engaging ball 4111 to descend. Then the gap of the engaging ball 4111 becomes smaller and will lock the insertion column 422. In this way, the top shell 411 and the bottom base 421 cannot be separated, maintaining the clamping state of the clamping claws 12. And at this time, the linkage bracket 41 cannot move, locking the folding bracket 2. In this way, the folding bracket 2 and the magnetic snap 4 are in a mutually locked state; When pressing the pressing rod 4121, the tension spring 4123 will be pulled open and the inner lifting seat 4122 will be pushed downward. The inner lifting seat 4122 drives the movable ball 41221 to move in the inner chute 41131. The movable ball 41221 can move horizontally on the inner lifting seat 4122 to adapt to the four sides at different positions of the inner chute 41131. The inner chute 41131 is W-shaped, with two outer long sides and two inner short sides. After the inner lifting seat 4122 descends to the bottom, the tension spring 4123 will reset and pull the inner lifting seat 4122 upward to reset. If it is initially in the long side of the inner chute 41131, then after pressing, it will be retracted and enter the short side and get stuck at the top of the short side. At this time, the inner lifting seat 4122 is at a lower position, and the movable magnet 412 and the fixed magnet 423 adsorb each other and pull the pressing block 4113 downward. If it is in the short side, when pressing the pressing rod 4121, the pressing rod 4121 will first descend in the movable magnet 412, so it will not be blocked by the fixed magnet 423, enabling the inner lifting seat 4122 to still descend and enter the long side from the short side and rise. After the pressing rod 4121 rises, it will pull the movable magnet 412 upward. In this way, the movable magnet 412 does not adsorb with the fixed magnet 423, and the downward pressure of the pressing block 4113 on the engaging ball 4111 is greatly reduced. At this time, the engaging ball 4111 is lifted upward by using the magnetic unlocking buckle 43 and the insertion column 422 is unlocked.

[0026] The traction winding column 5 includes a covering housing 51, the covering housing 51 is fixedly connected to the outer surface of the extending housing 32, a limiting sliding groove 511 is formed on the outer surface of the covering housing 51, a driving cylinder 512 is fixedly connected to the outer surface of the covering housing 51, a motor slider 513 is slidably connected to the inner surface of the limiting sliding groove 511, a driving motor 52 is fixedly connected to the inner surface of the motor slider 513, an input gear 521 is fixedly connected to the output end of the driving motor 52, symmetrically distributed winding worm wheels 53 are rotatably connected to the inner surface of the extending housing 32, a driving worm 531 is engaged with the outer surface of the winding worm wheel 53, an inner installation groove 54 is rotatably connected to the outer surface of the driving worm 531, a switching arm 541 is rotatably connected to the inner surface of the covering housing 51, a motor sliding groove 5411 is formed on the outer surface of the switching arm 541, a rotating shaft push block 542 is rotatably connected to the other end of the switching arm 541, symmetrically distributed reverse gears 55 are rotatably connected to the inner surface of the extending housing 32, a meshing gear A551 is fixedly connected to one end of the reverse gear 55, a gear input shaft 56 is slidably connected to the inner surface of the inner installation groove 54, a same-direction gear 561 is fixedly connected to the outer surface of the gear input shaft 56, and symmetrically distributed meshing gears B562 are fixedly connected to the outer surface of the gear input shaft 56.

[0027] A traction rope 61 is fixedly connected to the outer surface of the winding worm wheel 53, a wrapping pad 62 is fixedly connected to one end of the traction rope 61, and symmetrically distributed pulleys 63 are rotatably connected to the top surface of the extending housing 32.

[0028] The output shaft of the driving motor 52 is slidably connected to the inner surface of the motor sliding groove 5411, the rotating shaft push block 542 is slidably connected to the outer surface of the gear input shaft 56, the input gear 521, the reverse gear 55, and the reverse gear 55 are all bevel gears, the input gear 521 is engaged with the reverse gear 55 and the same-direction gear 561, the inner installation grooves 54 are symmetrically distributed and fixedly connected to the inner surface of the extending housing 32, the driving worm 531 is fixedly connected to the meshing gear B562, the meshing gear A551 is engaged with the meshing gear B562, the traction rope 61 is slidably connected to the outer surface of the pulley 63, and the traction rope 61 is wound around the outer surface of the winding worm wheel 53; Through the setting of the traction winding column 5, during the use process, after the wrapping pad 62 wraps the arm, it is tractioned on the pulleys 63 by the traction ropes 61 on both sides, and the other end is connected to the winding worm wheel 53. When the winding worm wheel 53 rotates, according to the different rotation directions, if the traction ropes 61 are wound or unwound simultaneously, the total length of the traction ropes 61 on both sides of the wrapping pad 62 will increase or decrease simultaneously, and the wrapping pad 62 will be pulled up or put down to achieve height adjustment. If the rotation directions of the winding worm wheels 53 are opposite, the traction ropes 61 will be wound and unwound respectively on both sides, and the total length of the traction ropes 61 on both sides of the wrapping pad 62 remains unchanged, and it will rotate towards the side with less length to achieve the flipping of the arm; The driving motor 52 drives the input gear 521 to rotate. The driving motor 52 slides horizontally in the limiting slide groove 511 through the action of the motor slider 513 and the driving cylinder 512, and toggles the switching arm 541 to rotate. Since the driving motor 52 can slide in the motor slide groove 5411, it is still inside the limiting slide groove 511 after toggling the switching arm 541. When the switching arm 541 rotates, it will toggle the shaft push block 542 to drive the gear input shaft 56 to rotate. In this way, when the driving cylinder 512 is retracted, the driving motor 52 drives the input gear 521 to engage with the two reverse gears 55 and push the gear input shaft 56 away. At this time, the meshing gear A 551 and the meshing gear B 562 are not in contact. At this time, the input gear 521 will drive the two reverse gears 55 to rotate in different directions, so that the winding worm gear 53 rotates in the opposite direction, and the worm gear is used to reduce speed and increase torque. After the driving cylinder 512 is pushed out, the driving cylinder 512 and the input gear 521 move to the other side, and the switching arm 541 will toggle the gear input shaft 56. After the input gear 521 moves, it does not mesh with the two reverse gears 55, but meshes with the same-direction gear 561. Moreover, after the gear input shaft 56 moves, the meshing gear A551 meshes with the meshing gear B562, but the reverse gear 55 does not mesh with the same-direction gear 561. At this time, the rotation of the input gear 521 drives the same-direction gear 561 and the gear input shaft 56 to rotate. Since the two meshing gears B562 rotate in the same direction, the two meshing gears A551 also rotate in the same direction, causing the winding worm gear 53 to rotate in the same direction. The gear input shaft 56 slides in the inner mounting groove 54 , with both ends being blocked and unable to rotate. The shaft push block 542 can slide on the gear input shaft 56 , and its function is the same as that of the motor slide groove 5411 .

[0029] In this embodiment, Figure 1 、 Figure 2 As shown, the folding bracket 2 is in the following state after being unfolded, and the extension shell 32 rises to the highest point on the extension inner wall 31; In this embodiment, Figure 3 As shown, the folding bracket 2 is in different states after being folded; In this embodiment, Figure 4 、 Figure 5 、 Figure 8 As shown, the different spacings between the shaft fixed block 24 and the shaft movable block 25 are used to control and lock the unfolded state of the folding bracket 2; In this embodiment, Figure 7 、 Figure 6 、 Figure 9 As shown, the insertion post 422 and the top housing 411 are in different states of merging and separating, and lock the clamping mount 1 and the clamping base 11 when merging; In this embodiment, Figure 10 、 Figure 11As shown, the pressing rod 4121 drives the inner lifting seat 4122 to move along a W-shaped path inside the pressing block 4113, and the position of the movable magnetic attraction 412 is different when it is at the bottom and the top; In this embodiment, as Figure 12 , Figure 13 shown, the extension housing 32 is installed outside the extension inner wall 31, and the extension housing 32 can be retracted on the extension inner wall 31; In this embodiment, as Figure 14 , Figure 15 shown, the traction winding column 5 is installed on the extension housing 32; In this embodiment, as Figure 16 , Figure 17 shown, the overall structure of the traction winding column 5, and at this time the input gear 521 meshes with the reverse gear 55, the two reverse gears 55 rotate in opposite directions, and at this time the meshing gear A551 and the meshing gear B562 are separated; In this embodiment, as Figure 18 shown, after rotating the switching arm 541, the input gear 521 meshes with the same-direction gear 561, and at this time the rotation directions of the driving worm 531 are the same.

[0030] The usage method and advantages of the present invention: The traction device for arthroscopic shoulder surgery has the following working process: As Figures 1 to 18 shown, when in use, the folding bracket 2 is in a folded state in the initial state. At this time, the shaft fixing block 24 and the shaft movable block 25 are far apart, and the connecting cross beam 241 is close to the clamping mounting seat 1. The clamping base 11 is pushed downward through the linkage bracket 41. At this time, the upper and lower clamping claws 12 are far apart. The clamping claws 12 are placed between the required hospital beds. At this time, the extension housing 32 is pulled, and the entire folding bracket 2 is unfolded. The stress bracket 23 and the connecting bracket 211 are collinear, and at this time the shaft fixing block 24 and the shaft movable block 25 are close. The two ends of the shaft movable block 25 are respectively clamped by the clamping inclined block 242 and the linkage bracket 41 to lock the current position, and the shaft fixing block 24 and the shaft movable block 25 are raised. The linkage bracket 41 drives the clamping mounting seat 1 and the clamping base 11 to approach each other, and the hospital bed is clamped by the clamping claws 12. The extension housing 32 moves upward on the extension inner wall 31 and is stuck in the movable groove 311 to maintain the upward state. At this time, the unfolding is completed; During the process of the clamping mounting base 1 and the clamping base 11 approaching each other, the insertion column 422 will insert into the top housing 411 and contact the engaging ball 4111. Press the pressing rod 4121 to lower the movable magnetic attraction 412 and lock it, so that the movable magnetic attraction 412 and the fixed magnetic attraction 423 attract each other. In this way, the pressing block 4113 receives a downward force, squeezes the engaging ball 4111 downward through the inner magnetic attraction housing 4112, increases the friction on the insertion column 422, and makes the insertion column 422 unable to be pulled out of the top housing 411 to complete the locking. In this way, the distance between the clamping mounting base 1 and the clamping base 11 is locked, the linkage bracket 41 cannot move, and the folding bracket 2 is also locked, realizing the automatic locking of the entire device while unfolding to achieve the effect of rapid installation; The traction ropes 61 on both sides are connected to the wrapping pad 62 for traction of the patient's arm. When it is necessary to adjust the height or angle of traction, start the drive motor 52. In the initial state, the drive cylinder 512 retracts, the input gear 521 on the drive motor 52 meshes with the reverse gear 55, and the uniform rotation of the drive motor 52 will drive the rotation directions of the active worms 531 on both sides to be opposite, so that the winding and unwinding worms 53 on both sides wind and unwind the traction ropes 61 respectively to make the wrapping pad 62 rotate. In this way, the height of the patient's arm remains unchanged while the angle changes. After the drive cylinder 512 extends, the drive motor 52 moves and rotates the switching arm 541, and pushes the gear input shaft 56 through the rotating shaft push block 542, so that the input gear 521 meshes with the same-direction gear group 561. The gear input shaft 56 drives the meshing gears B562 on both sides to rotate together and drives the meshing gears A551 meshing with them to rotate. At this time, the rotation directions of the active worms 531 are the same, and the traction ropes 61 are wound or unwound at the same time, so that the wrapping pad 62 drives the patient's arm to rise and fall; When disassembly is required, press the pressing rod 4121. The inner lifting seat 4122 first descends and then ascends, so that the movable magnetic attraction 412 and the fixed magnetic attraction 423 move away from each other to reduce the attraction force. Place the magnetic attraction unlocking buckle 43 above the pressing block 4113, and suck the inner magnetic attraction housing 4112 and the engaging ball 4111 upward, then the insertion column 422 is no longer stuck. Press the engaging inclined block 242 and the entire device is unlocked. At this time, fold and retract it again.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A shoulder arthroscopic surgery traction device, comprising a clamping mounting base (1), the outer surface of the clamping mounting base (1) is slidably connected with a clamping base (11), and clamping claws (12) are fixedly connected to the outer surfaces of the clamping mounting base (1) and the clamping base (11), characterized in that: The top surface of the clamping mounting base (1) is provided with a folding bracket (2) for folding and supporting. An extension housing (32) is mounted on the outer surface of the folding bracket (2). A magnetic snap (4) interlocked with the folding bracket (2) is provided on the outer surface of the clamping mounting base (1). A traction winding column (5) for controlling the lifting and rotation of the arm is provided on the outer surface of the extension housing (32). A pulley (63) is mounted on the outer surface of the extension housing (32).

2. The traction device for arthroscopic shoulder surgery according to claim 1, wherein: The folding bracket (2) includes a bottom bracket A (21). The bottom bracket A (21) is rotatably connected to the inner surface of the clamping mounting base (1). A connecting bracket (211) is rotatably connected to the outer surface of the bottom bracket A (21). A lifting bracket (212) is rotatably connected to the other end of the bottom bracket A (21). A bottom bracket B (22) is rotatably connected to the inner surface of the clamping mounting base (1). One end of the connecting bracket (211) is hinged to a stress bracket (23). The other end of the stress bracket (23) is rotatably connected to a parallel bracket (231).

3. The shoulder arthroscopic surgery traction device according to claim 2, characterized in that: A shaft fixing block (24) is rotatably connected to the rotational connection between the bottom bracket A (21) and the lifting bracket (212). A connecting cross beam (241) is fixedly connected to the outer surface of the shaft fixing block (24). A clamping inclined block (242) is slidably connected to the inner surface of the connecting cross beam (241). A shaft movable block (25) is rotatably connected to the rotational connections of the connecting bracket (211), the bottom bracket B (22), and the stress bracket (23).

4. The shoulder arthroscopic surgery traction device according to claim 3, wherein: One end of the parallel bracket (231) is rotatably connected to an extension inner wall (31). An activity groove (311) is formed on the outer surface of the extension inner wall (31). The extension housing (32) is slidably connected to the outer surface of the extension inner wall (31). A clamping block (321) is slidably connected to the inner surface of the extension housing (32).

5. The shoulder arthroscopic surgery traction device according to claim 4, characterized in that: The magnetic snap (4) includes a linkage bracket (41) and a magnetic unlocking buckle (43). The linkage bracket (41) is sleeved on the outer surface of the connecting cross beam (241). Top housings (411) are fixedly connected to both ends of the clamping mounting base (1). Annularly distributed clamping balls (4111) are slidably connected to the inner surface of the top housing (411). An inner magnetic shell (4112) is slidably connected to the inner surface of the top housing (411). A pressing block (4113) is slidably connected to the inner surface of the inner magnetic shell (4112). A movable magnet (412) is slidably connected to the inner surface of the pressing block (4113).

6. The arthroscopic surgery traction device according to claim 5, wherein: Symmetrically distributed limiting columns (42) are fixedly connected to the top surface of the clamping base (11). Bottom bases (421) are fixedly connected to both ends of the clamping base (11). Insertion clamping columns (422) are fixedly connected to the top surface of the bottom bases (421). Fixed magnets (423) are fixedly connected to both ends of the clamping base (11).

7. The shoulder arthroscopic surgery traction device according to claim 6, wherein: The traction and winding column (5) includes a covering shell (51), the covering shell (51) is fixedly connected to the outer surface of the extending shell (32), a limiting sliding groove (511) is formed on the outer surface of the covering shell (51), a driving cylinder (512) is fixedly connected to the outer surface of the covering shell (51), a motor slider (513) is slidably connected to the inner surface of the limiting sliding groove (511), a driving motor (52) is fixedly connected to the inner surface of the motor slider (513), an input gear (521) is fixedly connected to the output end of the driving motor (52), symmetrically distributed winding worm wheels (53) are rotatably connected to the inner surface of the extending shell (32), and a driving worm (531) is engaged with the outer surface of the winding worm wheel (53).

8. The shoulder arthroscopic surgery traction device according to claim 7, characterized in that: An inner installation groove (54) is rotatably connected to the outer surface of the driving worm (531), a switching arm (541) is rotatably connected to the inner surface of the covering shell (51), a motor sliding groove (5411) is formed on the outer surface of the switching arm (541), a rotating shaft push block (542) is rotatably connected to the other end of the switching arm (541), symmetrically distributed reverse gears (55) are rotatably connected to the inner surface of the extending shell (32), an engaging gear A (551) is fixedly connected to one end of the reverse gear (55), a gear input shaft (56) is slidably connected to the inner surface of the inner installation groove (54), a same-direction gear (561) is fixedly connected to the outer surface of the gear input shaft (56), and symmetrically distributed engaging gears B (562) are fixedly connected to the outer surface of the gear input shaft (56).

9. The shoulder arthroscopic surgery traction device according to claim 8, characterized in that: A traction rope (61) is fixedly connected to the outer surface of the winding worm wheel (53), a wrapping pad (62) is fixedly connected to one end of the traction rope (61), and symmetrically distributed pulleys (63) are rotatably connected to the top surface of the extending shell (32).

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