Electric shoulder joint traction frame

Abstract

The application relates to the technical field of medical devices, in particular to an electric shoulder joint traction frame, which comprises a base, the base is provided with a hexagonal groove, a top rod is fixedly arranged in the hexagonal groove of the base; an incomplete hexagonal column is partially matched with the hexagonal groove of the base, a limiting table is fixedly connected to the upper end of the incomplete hexagonal column, a connecting column is fixedly arranged on the upper surface of the limiting table; a folding mechanism is fixedly installed on the side surface of the connecting column, a fixing mechanism is fixedly installed on the folding mechanism; an upper top mechanism is slidably arranged on the limiting table. A limiting mechanism is arranged on the upper side of the folding mechanism. The electric shoulder joint traction frame is provided with a folding trigger structure connected through the hexagonal groove, the automatic folding and unfolding of the fixing mechanism can be triggered only by plugging and unplugging the incomplete hexagonal column, so that the two use modes of 'bed column fixation long-term traction' and'support support temporary traction' can be quickly switched, and the folding of the fixing mechanism eliminates the bump interference to the operation space.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an electric shoulder joint traction frame. Background Technology

[0002] In the process of shoulder joint injury repair, arthroscopic surgery and postoperative rehabilitation, continuous and stable traction of the shoulder joint is usually required to fully expose the joint space, reduce tissue tension, and create favorable conditions for surgical procedures or rehabilitation training. Therefore, the shoulder joint traction frame is an indispensable auxiliary medical device in the diagnosis and treatment of shoulder joint-related diseases.

[0003] There are already various shoulder joint traction devices in the prior art. For example, Chinese invention patent with publication number CN203970561U discloses a "simple traction frame for shoulder arthroscopy", which is fixed to the operating table frame by a connecting buckle at the end. However, the connecting buckle structure of this solution is fixed and can only be adapted to operating table frame columns of specific specifications. It cannot be compatible with bed columns of different diameters and cross-sectional shapes, resulting in insufficient adaptability when used on different models of operating tables in different medical institutions.

[0004] The existing solution has the drawback that the fixing mechanism cannot be quickly folded and stored. The fixing clamp used to hold the bed column is always in an extended horizontal state. When the support is placed in a temporary traction scenario, the extended fixing clamp is prone to collision with surgical instruments and the operating space of medical staff, interfering with the diagnosis and treatment operation. Furthermore, it cannot quickly switch between the two modes of "long-term traction with bed column fixation" and "temporary traction with support", and the entire fixing component needs to be disassembled and reassembled to adapt to different usage scenarios. Summary of the Invention

[0005] The purpose of this invention is to provide an electric shoulder joint traction frame to solve the technical problems of poor adaptability of the fixation mechanism and inability to be quickly folded and stored in the prior art, which limit the application scenarios.

[0006] This invention discloses an electric shoulder joint traction frame, including a base with a hexagonal groove. A top rod is fixedly installed within the hexagonal groove. An incomplete hexagonal column partially mates with the hexagonal groove in the base. A limiting platform is fixedly connected to the upper end of the incomplete hexagonal column, limiting its insertion into the hexagonal groove. A connecting column is fixedly installed on the upper surface of the limiting platform. A folding mechanism is fixedly installed on the side of the connecting column, and a fixing mechanism for fixing to a bed post is fixedly installed on the folding mechanism. An upper pushing mechanism slides through the limiting platform. When the incomplete hexagonal column is inserted into the hexagonal groove, the top rod pushes the upper pushing mechanism upward, which in turn pushes the folding mechanism to rotate, causing the fixing mechanism to fold over. A limiting mechanism fixedly connected to the connecting column is provided on the upper side of the folding mechanism, limiting excessive rotation of the folding mechanism to maintain the horizontal state of the fixing mechanism.

[0007] Furthermore, the folding mechanism includes a U-shaped frame, which is fixedly connected to the side of the connecting column. A shaft is fixedly installed on the inner wall of the U-shaped frame, and a rotating cylinder is rotatably mounted on the shaft. A torsion spring for pulling the rotating cylinder to rotate and reset is fixed between the rotating cylinder and the inner wall of the U-shaped frame, and the torsion spring is sleeved on the shaft. A pressure plate is fixed to one side of the rotating cylinder, and the upper lifting mechanism can push the rotating cylinder to rotate on the shaft through the pressure plate. A horizontal plate is fixedly installed on the other side of the rotating cylinder, and a limiting mechanism can be pressed against the horizontal plate to limit its excessive rotation and maintain the horizontal state of the horizontal plate. The fixing mechanism is fixedly connected to the horizontal plate.

[0008] Furthermore, the fixing mechanism includes a first clamping plate, which is fixedly connected to the horizontal plate. A second clamping plate is correspondingly provided on the first clamping plate. A first insert plate is fixed on the first clamping plate, and a second insert plate is fixed on the second clamping plate. A bolt can pass through the second clamping plate and the first insert plate. The bolt is threaded with a nut. The nut is screwed into the bolt to fix the second clamping plate to the first clamping plate. The bed post can be placed between the second clamping plate and the first clamping plate for fixing.

[0009] Furthermore, the upper lifting mechanism is located in a non-fitting position between the incomplete hexagonal prism and the hexagonal slot.

[0010] Furthermore, the upper lifting mechanism includes a push rod that slides through the limiting platform. An upper lifting block for pushing the pressure plate to rotate upward is fixed at the upper end of the push rod, and a lower lifting block that can contact the top of the push rod is fixed at the lower end of the push rod. A push spring for pushing the push rod to slide downward and reset is fixed between the lower lifting block and the limiting platform.

[0011] Furthermore, the limiting mechanism includes an L-shaped rod, which is fixedly connected to the connecting column and disposed on the upper side of the folding mechanism; a limiting plate for limiting the upward rotation of the horizontal plate is fixedly disposed on the L-shaped rod, and the limiting plate can maintain the horizontal state of the fixed mechanism on the horizontal plate.

[0012] Furthermore, a column is fixedly connected to the upper end of the connecting column, and a crossbar is fixed to the upper end of the column; a traction mechanism for traction of the shoulder joint is installed on the column and the crossbar.

[0013] Furthermore, the traction mechanism includes an electric telescopic rod, which is fixedly installed on the lower surface of the crossbar, and a guide assembly is fixedly connected to the power output end of the electric telescopic rod; a traction assembly for traction of the shoulder joint is installed on the crossbar, one end of the traction assembly is connected to the guide assembly, and the other end of the traction assembly can traction the shoulder joint.

[0014] Furthermore, the guide assembly includes a slider that is slidably sleeved on the column, and a lifting plate is fixedly mounted on the slider. The power output end of the electric telescopic rod is fixedly connected to the upper surface of the lifting plate. A first rotating wheel is rotatably mounted on the right side of the lifting plate, and one end of the pulling assembly is fixedly connected to the first rotating wheel.

[0015] Furthermore, the traction assembly includes: a fixed pulley mounted on a crossbar, a pull rope wrapped around the fixed pulley, one end of the pull rope being fixedly connected to a first rotating wheel; a second rotating wheel being fixedly connected to the other end of the pull rope, a wheel frame being rotatably mounted on the second rotating wheel, and a hanging ring being fixedly mounted on the wheel frame; and a traction ring for traction of the shoulder joint being sleeved on the hanging ring.

[0016] Beneficial effects: This electric shoulder traction frame utilizes a hexagonal slot linkage folding trigger structure. The automatic folding and unfolding of the fixation mechanism is triggered simply by partially inserting or removing the hexagonal column, allowing for quick switching between "long-term traction with bed column fixation" and "temporary traction with support." Furthermore, the folded fixation mechanism can be stored close to the connecting column, eliminating the impact of the extended structure on the surgical operating space and improving the safety of the procedure. The electrically driven traction mechanism, combined with a slider guide structure, enables precise and controllable adjustment of the traction force. The traction process is smooth and without deviation, effectively ensuring the stability and reliability of shoulder traction and significantly improving the efficiency and effectiveness of shoulder joint surgeries and rehabilitation training. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an electric shoulder joint traction device.

[0018] Figure 2 This is a first-person view diagram of the folding mechanism.

[0019] Figure 3 This is a second-view schematic diagram of the folding mechanism.

[0020] Figure 4 This is a third-person perspective diagram of the folding mechanism.

[0021] Figure 5 This is a schematic diagram of the guiding and traction components.

[0022] In the attached diagram: 1. Base; 2. Incomplete hexagonal column; 3. Upright column; 4. Crossbar; 5. Traction mechanism; 11. Hexagonal slot; 12. Top rod; 21. Limiting platform; 22. Connecting column; 23. Folding mechanism; 24. Fixing mechanism; 25. Top lifting mechanism; 26. Limiting mechanism; 231. U-shaped frame; 232. Shaft; 233. Rotary drum; 234. Torsion spring; 235. Pressure plate; 236. Horizontal plate; 241. First clamping plate; 242. Second clamping plate; 243. First insert plate ; 244, Second insert plate; 245, Bolt; 246, Nut; 251, Push rod; 252, Upper top block; 253, Lower top block; 254, Push spring; 261, L-shaped rod; 262, Limiting plate; 51, Electric telescopic rod; 52, Guide assembly; 53, Pulling assembly; 521, Slider; 522, Lifting plate; 523, First rotating wheel; 531, Fixed pulley; 532, Pull rope; 533, Second rotating wheel; 534, Wheel frame; 535, Lifting ring; 536, Traction ring. Detailed Implementation

[0023] To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the following description is provided in conjunction with the appendix. Figures 1-5 The present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0024] like Figure 1 and Figure 2 As shown, an electric shoulder joint traction frame includes: a base 1, wherein the base 1 has a hexagonal groove 11, and a top rod 12 is fixedly installed in the hexagonal groove 11; an incomplete hexagonal column 2, which partially mates with the hexagonal groove 11 of the base 1, and a limiting platform 21 is fixedly connected to the upper end of the incomplete hexagonal column 2, the limiting platform 21 being used to limit the insertion of the incomplete hexagonal column 2 into the hexagonal groove 11, and a connecting column 22 is fixedly installed on the upper surface of the limiting platform 21; and a folding mechanism 23, which is fixedly installed on the side of the connecting column 22. The folding mechanism 23 is fixedly mounted with a fixing mechanism 24 for fixing with the bed post; the limiting platform 21 has an upper lifting mechanism 25 that slides through it; the incomplete hexagonal column 2 is inserted into the hexagonal slot 11, which allows the push rod 12 to push the upper lifting mechanism 25 upward, and the upper lifting mechanism 25 can push the folding mechanism 23 to rotate so that the fixing mechanism 24 can be flipped and folded; the upper side of the folding mechanism 23 is provided with a limiting mechanism 26 that is fixedly connected to the connecting column 22. The limiting mechanism 26 is used to limit the excessive rotation of the folding mechanism 23 to maintain the horizontal state of the fixing mechanism 24.

[0025] When the bedpost fixing mode is required, the incomplete hexagonal column 2 is removed from the hexagonal slot 11 of the base 1. At this time, the push rod 12 has no contact path with the upper lifting mechanism 25, and the fixing mechanism 24 remains in a horizontal extended state, which can be directly connected and fixed to the operating table column, achieving long-term stable installation of the traction frame. When switching to the temporary support mode is required, the incomplete hexagonal column 2 is inserted into the hexagonal slot 11. The push rod 12 triggers the upper lifting mechanism 25 to move upward, thereby pushing the folding mechanism 23 to rotate, causing the fixing mechanism 24 to flip and fold downward, eliminating the impact interference of the extended structure. The traction frame can be stably placed on the ground only through the base 1, adapting to the rapid use needs of temporary traction scenarios. The limiting mechanism 26 can limit the rotation angle of the folding mechanism 23 when the fixing mechanism 24 is unfolded, ensuring that the fixing mechanism 24 is always in a horizontal state and avoiding tilting and loosening when clamping the bedpost.

[0026] like Figure 3 As shown, the folding mechanism 23 includes: a U-shaped frame 231, which is fixedly connected to the side of the connecting column 22; a shaft 232 is fixedly installed on the inner wall of the U-shaped frame 231; a rotating cylinder 233 is rotatably mounted on the shaft 232; a torsion spring 234 for pulling the rotating cylinder 233 to rotate and reset is fixed between the rotating cylinder 233 and the inner wall of the U-shaped frame 231; the torsion spring 234 is sleeved on the shaft 232; a pressure plate 235 is fixed on one side of the rotating cylinder 233; the upper lifting mechanism 25 can push the rotating cylinder 233 to rotate on the shaft 232 through the pressure plate 235; a horizontal plate 236 is fixedly installed on the other side of the rotating cylinder 233; a limiting mechanism 26 can be pressed against the horizontal plate 236 to limit its excessive rotation and maintain the horizontal plate 236 in a horizontal state; and a fixing mechanism 24 is fixedly connected to the horizontal plate 236.

[0027] The U-shaped frame 231 serves as a fixed base, providing support for the entire folding structure. The shaft 232 acts as the rotation center, bearing the rotational motion of the rotating cylinder 233. When a folding trigger signal is received, the upper lifting mechanism 25 pushes the pressure plate 235 upward. The pressure plate 235 drives the rotating cylinder 233 to rotate along the shaft 232 against the torque of the torsion spring 234, causing the horizontal plate 236 on the other side of the rotating cylinder 233 to flip downward, thus realizing the folding and storage of the fixing mechanism 24. When the folding trigger force disappears, the torsion spring 234 releases its elastic potential energy, pulling the rotating cylinder 233 to rotate in the opposite direction, causing the horizontal plate 236 to return to its original position upward until the upper surface of the horizontal plate 236 is in contact with the limiting surface of the limiting mechanism 26. At this time, the horizontal plate 236 remains horizontal, and the fixing mechanism 24 simultaneously unfolds to the working position. The entire folding and unfolding process requires no additional tools and can be quickly switched through pure mechanical linkage, making operation convenient and reliable.

[0028] like Figure 4As shown, the fixing mechanism 24 includes: a first clamping plate 241, which is fixedly connected to the horizontal plate 236; a second clamping plate 242 is correspondingly provided on the first clamping plate 241; a first insert plate 243 is fixed on the first clamping plate 241; and a second insert plate 244 is fixed on the second clamping plate 242; a bolt 245, which can pass through the second clamping plate 242 and the first insert plate 243; a nut 246 is threaded onto the bolt 245; the nut 246 is screwed into the bolt 245 to fix the second clamping plate 242 to the first clamping plate 241; and the bed post can be placed between the second clamping plate 242 and the first clamping plate 241 for fixing.

[0029] When fixing the bed column, firstly, the inner arc surface of the first clamping plate 241 is placed against one side of the bed column, and then the inner arc surface of the second clamping plate 242 is aligned with the other side of the bed column, so that the first insert plate 243 and the second insert plate 244 are inserted and aligned with each other, ensuring that the position of the two clamping plates is stable and does not shift. Then, the bolts 245 are passed through the reserved through holes of the second clamping plate 242 and the first insert plate 243 in sequence, and the nuts 246 are screwed into the ends of the bolts 245 and gradually tightened. The thread preload force makes the first clamping plate 241 and the second clamping plate 242 fit tightly against the outer wall of the bed column, and the traction frame is firmly connected to the operating table by contact friction. When it is necessary to remove, simply loosen the nuts 246 and pull out the bolts 245 to quickly separate the two clamping plates and complete the disassembly of the traction frame from the bed column. The entire fixing and disassembly process is simple to operate and can be adapted to round or polygonal bed columns of different diameters, with strong adaptability.

[0030] like Figure 3 As shown, the upper lifting mechanism 25 is located at the non-fitting position of the incomplete hexagonal prism 2 and the hexagonal slot 11. The upper lifting mechanism 25 includes: a push rod 251, which slides through the limiting platform 21; an upper lifting block 252 for pushing the pressure plate 235 to rotate upward is fixed at the upper end of the push rod 251; a lower lifting block 253 that can contact the top of the top rod 12 is fixed at the lower end of the push rod 251; and a push spring 254 for pushing the push rod 251 to slide downward and reset is fixed between the lower lifting block 253 and the limiting platform 21.

[0031] When the incomplete hexagonal prism 2 is inserted into the hexagonal slot 11 of the base 1, the top of the push rod 12 contacts the bottom of the lower push block 253. As the incomplete hexagonal prism 2 is continuously inserted, the push rod 12 pushes the lower push block 253 upward against the elastic force of the push spring 254. The push rod 251 slides upward synchronously with the lower push block 253, causing the upper push block 252 to push up the pressure plate 235 of the folding mechanism 23, thereby triggering the folding action of the fixing mechanism 24. When the incomplete hexagonal prism 2 is removed from the hexagonal slot 11, the upward pushing force of the push rod 12 on the lower push block 253 disappears, the push spring 254 releases its elastic potential energy to push the lower push block 253 downward to reset, causing the push rod 251 and the upper push block 252 to slide downward synchronously, releasing the upward force on the pressure plate 235. The folding mechanism 23 can then drive the fixing mechanism 24 to unfold and reset under the action of the torsion spring 234. The entire triggering process is achieved entirely through mechanical structure linkage, requiring no additional power source, and is fast-responding and highly reliable.

[0032] like Figure 4 As shown, the limiting mechanism 26 includes: an L-shaped rod 261, which is fixedly connected to the connecting column 22 and disposed on the upper side of the folding mechanism 23; a limiting plate 262 is fixedly disposed on the L-shaped rod 261 for limiting the upward rotation of the horizontal plate 236, and the limiting plate 262 can maintain the horizontal state of the fixing mechanism 24 on the horizontal plate 236.

[0033] One end of the L-shaped rod 261 is fixed to the side of the connecting column 22, providing stable installation support for the limiting plate 262, and the lower surface of the limiting plate 262 remains horizontal. When the horizontal plate 236 of the folding mechanism 23 rotates upward and unfolds under the action of the torsion spring 234, the upper surface of the horizontal plate 236 will fit tightly against the lower surface of the limiting plate 262, preventing the horizontal plate 236 from continuing to rotate upward, thereby limiting the rotation angle of the horizontal plate 236 to a horizontal position, ensuring that the fixing mechanism 24 is always in a horizontal extended state, and avoiding the instability of the bed column clamping caused by the angular deviation of the fixing mechanism 24. When the folding mechanism 23 receives the folding trigger signal and rotates downward, the horizontal plate 236 separates from the limiting plate 262, and will not interfere with the folding action, ensuring that the folding and storage process is completed smoothly.

[0034] In shoulder traction scenarios, there are high requirements for the reliability and operational efficiency of the fixation mechanism mode switching. The trigger-folding structure in this solution is the only design suitable for this scenario, and other structures are difficult to meet clinical needs: If an electrically triggered folding structure is used, electromagnetic interference from equipment such as high-frequency electrosurgical units during surgery can easily lead to trigger signal disorder, resulting in the fixation mechanism 24 folding unexpectedly or failing to unfold, directly affecting the stability of the traction frame and posing a serious safety hazard; If a manual button-triggered folding structure is used, medical staff need to use their hands to press the trigger button during the mode switching between long-term traction with bed column fixation and temporary traction with support, and cannot simultaneously support the traction frame to align with the bed column, increasing the complexity of the installation operation and the risk of forgetting to fold during long-term traction, which does not meet the requirements for rapid operation; If an additional pin-locking folding structure is used, the pin needs to be pulled out first and then the angle of the fixation mechanism 24 needs to be adjusted when switching modes, which is a cumbersome operation. In addition, the pin is a small part and is easy to fall off and be lost in the sterile surgical environment, bringing the risk of foreign body retention. The pure mechanical linkage triggering structure adopted in this solution avoids the above problems. The mode switching can be achieved simply by inserting and removing the incomplete hexagonal column 2: when the incomplete hexagonal column 2 is inserted, the push rod 12 directly pushes the lower push block 253 of the upper push mechanism 25 to move upward, driving the push rod 251 and the upper push block 252 to move upward synchronously to lift the pressure plate 235, triggering the rotating cylinder 233 of the folding mechanism 23 to rotate and realize the folding of the fixing mechanism 24; when the incomplete hexagonal column 2 is pulled out, the push spring 254 and the torsion spring 234 reset in sequence to realize the unfolding of the fixing mechanism 24. The whole process requires no additional operation, no electronic control components, and no small easily lost parts, which is fully adapted to the high reliability and fast operation efficiency requirements of shoulder joint traction scenarios.

[0035] like Figure 1 and Figure 5As shown, a column 3 is fixedly connected to the upper end of the connecting column 22, and a crossbar 4 is fixedly connected to the upper end of the column 3. A traction mechanism 5 for traction of the shoulder joint is installed on the column 3 and the crossbar 4. The traction mechanism 5 includes: an electric telescopic rod 51, which is fixedly installed on the lower surface of the crossbar 4, and a guide assembly 52 is fixedly connected to the power output end of the electric telescopic rod 51; a traction assembly 53 for traction of the shoulder joint is installed on the crossbar 4, one end of the traction assembly 53 is connected to the guide assembly 52, and the other end of the traction assembly 53 can traction the shoulder joint. The guide assembly 52 includes: a slider 521, which is slidably sleeved on the column 3, a lifting plate 522 is fixedly installed on the slider 521, and the power output end of the electric telescopic rod 51 is fixedly connected to the upper surface of the lifting plate 522; a first rotating wheel 523 is rotatably installed on the right side of the lifting plate 522, and one end of the traction assembly 53 is fixedly connected to the first rotating wheel 523. The traction assembly 53 includes: a fixed pulley 531, which is mounted on the crossbar 4, a pull rope 532 passing around the fixed pulley 531, one end of the pull rope 532 being fixedly connected to a first rotating wheel 523; the other end of the pull rope 532 being fixedly connected to a second rotating wheel 533, a wheel frame 534 being rotatably mounted on the second rotating wheel 533, a hanging ring 535 being fixedly mounted on the wheel frame 534; and a traction ring 536 for traction of the shoulder joint being sleeved on the hanging ring 535.

[0036] After completing the mode switching and fixing of the traction frame, the patient's upper limb is fixed to the traction ring 536 by the traction strap. The electric telescopic rod 51 is activated, and the power output end of the electric telescopic rod 51 extends downward, driving the lifting plate 522 to move downward. The slider 521 slides synchronously along the column 3 to ensure that the movement of the lifting plate 522 is smooth and without deviation. The first rotating wheel 523 moves downward synchronously with the lifting plate 522, pulling the pull rope 532 downward. After the pull rope 532 is turned by the fixed pulley 531 on the crossbar 4, the other end pulls the second rotating wheel 533 upward, thereby driving the wheel frame 534, the hanging ring 535 and the traction ring 536 to move upward synchronously, realizing continuous traction on the patient's shoulder joint. By controlling the extension length of the electric telescopic rod 51, the traction height and traction force can be precisely adjusted to meet the personalized traction needs of different patients. The rotatable design of the first rotating wheel 523 and the second rotating wheel 533 can automatically adjust the force angle of the pull rope 532 to avoid the problem of the pull rope 532 twisting and jamming during the traction process, ensuring that the traction process is smooth and stable.

[0037] Working principle: When the bed column fixing mode is required, the incomplete hexagonal column 2 is removed from the hexagonal slot 11 of the base 1. The push rod 12 will not contact the lower push block 253 of the upper push mechanism 25. The push spring 254 pushes the push rod 251 to keep it in a downward position. The upper push block 252 does not apply an upward force to the pressure plate 235. The torsion spring 234 pulls the rotating cylinder 233 to rotate on the shaft 232, causing the horizontal plate 236 to flip upward until the upper surface of the horizontal plate 236 is close to the limiting plate 262 of the limiting mechanism 26. At this time, the horizontal plate 236 remains horizontal. The fixing mechanism 24 is in a horizontally extended state synchronously with the horizontal plate 236. The bed column is placed between the first clamping plate 241 and the second clamping plate 242. Tightening the bolts 245 and nuts 246 completes the fixing of the traction frame and the operating table.

[0038] When switching to the temporary traction mode supported by the support, the incomplete hexagonal column 2 is inserted into the hexagonal slot 11. At this time, the push rod 12 is aligned with the lower push block 253 and the lower push block 253 is pushed upward. This overcomes the elastic force of the push spring 254 and drives the push rod 251 to slide upward. The upper push block 252 then pushes the pressure plate 235 upward. The pressure plate 235 drives the rotating cylinder 233 to rotate on the shaft 232, overcoming the elastic force of the torsion spring 234. This causes the horizontal plate 236 to flip downward. The fixing mechanism 24 is folded down and stored close to the connecting column 22 along with the horizontal plate 236, avoiding interference from the operation by the extended fixing mechanism 24. At this time, the traction frame can be stably supported by simply placing it on the ground with the base 1, which is suitable for temporary traction scenarios.

[0039] After completing the mode switching and fixation, the patient's arm is secured to the traction ring 536 with a bandage. The electric telescopic rod 51 is activated. As the electric telescopic rod 51 extends downward, it drives the lifting plate 522 to move downward along the column 3. The slider 521 slides synchronously with the lifting plate 522 to ensure the stability of the lifting process. One end of the pull rope 532 is connected to the first rotating wheel 523 on the lifting plate 522. After being turned by the fixed pulley 531 on the crossbar 4, the other end is connected to the wheel frame 534 and the hanging ring 535 through the second rotating wheel 533. When the lifting plate 522 moves downward, the pull rope 532 is pulled downward, thereby driving the hanging ring 535 and the traction ring 536 to move upward, achieving continuous traction on the shoulder joint. By controlling the extension length of the electric telescopic rod 51, the traction force and traction height can be precisely adjusted to meet the traction needs of different treatment scenarios.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are similarly included within the protection scope of the present invention.

Claims

1. An electric shoulder joint traction frame, comprising a base (1), characterized in that, The base (1) has a hexagonal groove (11), and a top rod (12) is fixedly installed in the hexagonal groove (11) of the base (1). An incomplete hexagonal column (2) is partially fitted with a hexagonal slot (11) provided in the base (1). A limiting platform (21) is fixedly connected to the upper end of the incomplete hexagonal column (2). A connecting column (22) is fixedly provided on the upper surface of the limiting platform (21). A folding mechanism (23) is fixedly installed on the side of the connecting column (22), and a fixing mechanism (24) for fixing with the bed column is fixedly installed on the folding mechanism (23). The upper lifting mechanism (25) slides through the limiting platform (21); The upper side of the folding mechanism (23) is provided with a limiting mechanism (26) that is fixedly connected to the connecting column (22).

2. The electric shoulder joint traction frame according to claim 1, characterized in that, The folding mechanism (23) includes: A U-shaped frame (231) is fixedly connected to the side of a connecting column (22). A shaft (232) is fixedly installed on the inner wall of the U-shaped frame (231). A rotating cylinder (233) is rotatably installed on the shaft (232). A torsion spring (234) for pulling the rotating cylinder (233) to rotate and reset is fixed between the rotating cylinder (233) and the inner wall of the U-shaped frame (231). The torsion spring (234) is sleeved on the shaft (232). A pressure plate (235) is fixed on one side of the rotating drum (233); A horizontal plate (236) is fixedly installed on the other side of the rotating drum (233), and the fixing mechanism (24) and the horizontal plate (236) are fixedly connected.

3. The electric shoulder joint traction frame according to claim 2, characterized in that, The fixing mechanism (24) includes: The first clamping plate (241) is fixedly connected to the horizontal plate (236). The first clamping plate (241) is correspondingly provided with a second clamping plate (242). The first clamping plate (241) is fixed with a first insert plate (243), and the second clamping plate (242) is fixed with a second insert plate (244). A bolt (245) that can pass through a second clamping plate (242) and a first insert plate (243) is threaded with a nut (246).

4. The electric shoulder joint traction frame according to claim 2, characterized in that, The upper mechanism (25) is located in the non-fitting position of the incomplete hexagonal column (2) and the hexagonal groove (11).

5. The electric shoulder joint traction frame according to claim 4, characterized in that, The upper lifting mechanism (25) includes: Push rod (251) slides through limiting platform (21). The upper end of push rod (251) is fixed with upper top block (252) for pushing pressure plate (235) to rotate upward. The lower end of push rod (251) is fixed with lower top block (253) that can contact the top of top rod (12). A push spring (254) is fixed between the lower top block (253) and the limiting platform (21) for pushing the push rod (251) to slide downward and reset.

6. The electric shoulder joint traction frame according to claim 2, characterized in that, The limiting mechanism (26) includes: L-shaped rod (261), which is fixedly connected to the connecting column (22) and is set on the upper side of the folding mechanism (23); A limiting plate (262) is fixedly installed on the L-shaped rod (261) to limit the upward rotation of the horizontal plate (236).

7. The electric shoulder joint traction frame according to claim 1, characterized in that, The upper end of the connecting column (22) is fixedly connected to a column (3), and the upper end of the column (3) is fixed to a crossbar (4). The column (3) and crossbar (4) are equipped with a traction mechanism (5) for traction of the shoulder joint.

8. The electric shoulder joint traction frame according to claim 7, characterized in that, The traction mechanism (5) includes: An electric telescopic rod (51) is fixedly installed on the lower surface of the crossbar (4), and a guide assembly (52) is fixedly connected to the power output end of the electric telescopic rod (51). A traction assembly (53) for traction of the shoulder joint is installed on the crossbar (4), and one end of the traction assembly (53) is connected to the guide assembly (52).

9. An electric shoulder joint traction frame according to claim 8, characterized in that, The guide component (52) includes: The slider (521) is slidably sleeved on the column (3), and a lifting plate (522) is fixedly installed on the slider (521). The power output end of the electric telescopic rod (51) is fixedly connected to the upper surface of the lifting plate (522). The lifting plate (522) has a first rotating wheel (523) rotatably mounted on its right side, and one end of the traction component (53) is fixedly connected to the first rotating wheel (523).

10. An electric shoulder joint traction frame according to claim 9, characterized in that, The traction assembly (53) includes: A fixed pulley (531) is mounted on a crossbar (4), and a pull rope (532) is wound around the fixed pulley (531). One end of the pull rope (532) is fixedly connected to the first rotating wheel (523). The other end of the pull rope (532) is fixedly connected to a second rotating wheel (533), and a wheel frame (534) is rotatably mounted on the second rotating wheel (533). A hanging ring (535) is fixedly installed on the wheel frame (534). The traction ring (536) for traction of the shoulder joint is fitted onto the sling (535).

Images