Simple and detachable fracture intraoperative traction device

Abstract

The invention relates to the technical field of traction devices, in particular to a simple and detachable fracture intraoperative traction device which comprises a folding mechanism, an adjusting mechanism, a traction mechanism, an adjusting mechanism, a traction mechanism, an adjusting mechanism, an adjusting mechanism, an adjusting mechanism and a traction mechanism, wherein the adjusting mechanism is mounted at one end of a sickbed of a patient and used for adjusting the traction length according to the length of the lower limb of the patient; the adjusting mechanism is mounted on the folding mechanism and used for self-adaptive adjustment according to the traction angle of the lower limb of the patient; the traction device is installed on the folding machine and used for improving the stability of heavy object traction. The device is formed by combining the folding mechanism, the adjusting mechanism and the traction mechanism, the device is unfolded or folded in a mutual folding and sliding mode, and compared with a traditional traction device which is formed by taking down a large number of connecting pieces from a containing frame to be independently assembled, the device has the effects of being convenient and rapid to disassemble and assemble and small in occupied area; and meanwhile, by arranging the traction mechanism, the stability of heavy object traction is further improved, the influence degree of external force on heavy object traction is reduced, and the stability of the traction angle of the device is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of traction devices, and particularly relates to a simple detachable traction device during fracture surgery. Background Art

[0002] The traction device during fracture surgery is a device widely used in orthopedics. Its main function is to use the weights, rollers, ropes and traction bows in the traction device to perform gravitational traction on the puncture needles penetrating the bones, so as to correct the fractured bones and make them reset, and avoid the displacement of the fractured bones caused by muscle contraction.

[0003] When the traditional traction device during fracture surgery performs traction on the lower limbs, it lacks an adjustment mechanism and cannot meet the traction angles required at different fracture points of the bones. In addition, the suspended weights lack a limiting component and are easily affected by external forces and swing violently, resulting in a change in the traction angle, affecting the traction effect and increasing the pain of the patient. To solve the above problem of difficult angle adjustment, a convenient adjustable traction device during lower limb fracture surgery has been gradually developed in the market. To achieve the effect of convenient adjustment of the lower limb traction angle, it uses a split structure and connects multiple connectors by splicing and clamping and screwing tight. Although it can achieve the effect of freely adjusting the traction angle, due to too many connection structures, it leads to complex disassembly and assembly and too large floor area. At the same time, the suspended weights providing gravity still lack the limiting function to resist external force interference.

[0004] In view of this, we propose a simple detachable traction device during fracture surgery. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies mentioned in the above background art and provide a simple detachable traction device during fracture surgery.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A simple detachable traction device during fracture surgery, comprising:

[0008] A folding mechanism, installed at one end of the patient's hospital bed, for adjusting the traction length according to the length of the patient's lower limb;

[0009] An adjustment mechanism is installed on the folding mechanism for self-adaptive adjustment according to the traction angle of the patient's lower limb;

[0010] A traction mechanism, installed on the folding mechanism, for improving the stability of the traction weight.

[0011] Preferably, the folding mechanism includes a first folding plate and a second folding plate. One end of the first folding plate is connected to the patient's hospital bed. Chutes are provided at opposite ends of the first folding plate and the second folding plate, and connecting rods are slidably connected in the chutes. Opposite ends of the two connecting rods are rotatably connected by a bolt to a connecting block.

[0012] Preferably, a clamping block is fixedly installed on the top of the connecting block by bolt connection. The outer contour size of the connecting block is the same as the inner contour size of the chute.

[0013] Preferably, the adjusting mechanism includes two fixing bars which are respectively fixedly connected to the tops of the corresponding first folding plate and the second folding plate. Slide blocks are slidably connected in a limited way on the two fixing bars. A rectangular sleeve is rotatably connected to the top of the slide block. A support rod is slidably connected in the rectangular sleeve. The top end of the support rod is rotatably connected to an arc-shaped support frame for supporting the patient's lower limbs. Tightening knobs adapted to them are provided at the rotation points of the slide block and the rectangular sleeve, the rotation points of the support rod and the arc-shaped support frame, and near the top end of the rectangular sleeve to improve the stability between the connecting parts.

[0014] Preferably, stoppers for preventing the slide block from sliding out of the range of the fixing bar are fixedly connected to both ends of the fixing bar by screws. The size of the stopper is adapted to the size of the slide block.

[0015] Preferably, a claw groove adapted to the end railing of the patient's hospital bed is provided at one end of the first folding plate. The shape of the claw groove is cross-shaped. A slot is also provided at the top of the first folding plate where the claw groove is located. A plug block adapted to the claw groove is inserted in the slot. A plug rod for connecting with an externally provided perforated connector is fixedly connected to the lower surface of the first folding plate near the claw groove.

[0016] Preferably, clamping grooves are provided on both sides of the first folding plate and the second folding plate. Connecting bands for connecting the clamping grooves on the first folding plate are rotatably connected in the two clamping grooves on the second folding plate.

[0017] Preferably, the traction mechanism includes two fixing plates fixedly connected to the ends of the second folding plate opposite to the first folding plate. A traction frame is connected between the two fixing plates in a limited sliding manner. A groove is formed at the top of the traction frame, and a traction box is rotatably connected in the groove. A fixed pulley is fixedly connected in the traction box, and a movable pulley is slidably connected. A first traction rope is fixedly connected to the side of the movable pulley away from the fixed pulley. One end of the first traction rope away from the movable pulley is fixedly connected to a traction bow for connecting a steel needle. A second traction rope is wound between the fixed pulley and the movable pulley, and the second traction rope is wound around the fixed pulley and the movable pulley in the winding manner of a pulley block. The end of the second traction rope away from the movable pulley penetrates through the traction box and is wound around a wire reel. A motor is fixedly connected to one side of the traction box close to the wire reel, and the output shaft of the motor is inserted and fixed to the wire reel.

[0018] Preferably, one end of the second traction rope between the fixed pulley and the movable pulley is fixedly connected to a tensile force sensor, and the other end of the tensile force sensor is fixedly connected to the fixed pulley.

[0019] Preferably, limiting grooves are formed on both sides of the traction frame. A plurality of positioning holes are formed in the limiting grooves. Limiting blocks adapted to the limiting grooves are fixedly connected to the opposite sides of the two fixing plates, and positioning blocks adapted to the positioning holes are arranged therethrough.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. Through the arrangement of the claw groove and the insertion rod, a larger applicable range for external support members in different environments can be achieved, meeting more connection requirements. At the same time, the unique shape setting of the claw groove can achieve quick and stable clamping with the metal railings of traditional hospital beds, improving the connection efficiency. In addition, after the insertion rod is inserted into the insertion slot, it can further abut and limit the metal railing clamped in the claw groove, enhancing the stability effect of the connection between the first folding plate and the hospital bed.

[0022] 2. By adjusting the positions of the connection block between the first folding plate and the second folding plate and the two connecting rods in the sliding groove, the effect of mutual connection and extension can be realized. It has the function of freely changing the support position for the lower limbs according to the length of the patient's lower limbs and the traction length, facilitating the medical staff to perform traction. At the same time, by rotating the angles of the two connecting rods on the connection block, the effect of folding the first folding plate and the second folding plate can be achieved, facilitating the storage of the device and reducing the floor area. And through the mutual adaptation of the limiting groove and the positioning hole, the effect of freely moving and rotating the traction box can be achieved, enabling the traction frame to freely move and turn within the fixing plate, facilitating the folding and unfolding of the traction frame;

[0023] 3. Driven by the output shaft of the motor, the wire winding roller winds the second traction rope. As the second traction rope is wound, the movable pulley will continuously approach the fixed pulley under the traction force of the second traction rope, and pull the first traction rope and the wire winding roller towards the traction box, thereby achieving the gravity traction effect. The magnitude of the traction force is related to the number of rotations of the output shaft, and it has the effect of automatically adjusting the pulling force according to requirements. Compared with the traditional use of a weight, the pulling force value is more accurate and easier to control. The design of the fixed pulley and the movable pulley makes use of the principle of the pulley block, which is more labor-saving and reduces the power consumption of the equipment. The wound second traction rope is also more stable than the traditional single wire routing method, making the traction force of the device more stable. And with the setting of the tension sensor, it can achieve real-time monitoring of the tension and display it on the external display screen. When the tension data shows continuous large-range fluctuations, it can send a warning signal to the external controller to remind the medical staff to come and check the patient's condition, achieving the effect of monitoring the traction force and giving a warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0025] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a schematic cross-sectional view of the overall structure of the present invention;

[0027] Figure 3 is a schematic diagram of the structure at the first folding plate and the second folding plate of the present invention;

[0028] Figure 4 is a schematic diagram of the structure at the first folding plate of the present invention;

[0029] Figure 5 is a schematic diagram of the structure at the traction frame and the traction box of the present invention;

[0030] Figure 6 is a schematic diagram of the structure at the traction box and the traction bow of the present invention;

[0031] Figure 7 is a schematic cross-sectional view of the traction box of the present invention.

[0032] The meanings of the various reference numerals in the drawings are as follows:

[0033] 1. Folding mechanism; 11. First folding plate; 12. Second folding plate; 13. Slide groove; 14. Connecting rod; 15. Connecting block; 16. Clamping block; 2. Adjusting mechanism; 21. Fixed strip; 22. Slide block; 23. Rectangular sleeve; 24. Support rod; 25. Arc-shaped support frame; 26. Stopper; 3. Traction mechanism; 31. Fixed plate; 311. Limit block; 312. Positioning block; 32. Traction frame; 321. Limit groove; 322. Positioning hole; 323. Groove; 33. Traction box; 34. Fixed pulley; 35. Movable pulley; 36. Tensile sensor; 37. First traction rope; 371. Second traction rope; 38. Wire reel; 39. Motor; 310. Traction bow; 4. Claw groove; 41. Insert block; 42. Insert rod; 5. Card slot; 51. Connecting band. Detailed implementation mode

[0034] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions 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. Without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0035] Please refer to Figures 1-7 As shown in the figure, the present invention details the above technical solutions through the following embodiments:

[0036] A simple detachable traction device for fracture surgery includes:

[0037] A folding mechanism (1) is installed at one end of the patient's hospital bed and is used to adjust the traction length according to the length of the patient's lower limb;

[0038] An adjusting mechanism (2) is installed on the folding mechanism (1) and is used for adaptive adjustment according to the traction angle of the patient's lower limb;

[0039] A traction mechanism (3) is installed on the folding mechanism (1) and is used to improve the stability of the traction weight.

[0040] This device is composed of a folding mechanism (1), an adjusting mechanism (2) and a traction mechanism (3). It is unfolded or recovered by means of mutual folding and sliding. Compared with the traditional traction device that separately assembles a large number of connecting parts from the placement rack, this device has the effects of convenient and fast disassembly and assembly, and small floor area. At the same time, the setting of its traction mechanism (3) further improves the stability of the traction weight, reduces the influence of external forces on the traction weight, and enhances the stability of the traction angle of the device.

[0041] Please refer to Figures 1-3As shown, the folding mechanism (1) includes a first folding plate (11) and a second folding plate (12). One end of the first folding plate (11) is connected to the patient's hospital bed. Sliding grooves (13) are provided at opposite ends of the first folding plate (11) and the second folding plate (12), and connecting rods (14) are slidably connected in the sliding grooves (13). Opposite ends of the two connecting rods (14) are rotatably connected by a pin to a connecting block (15).

[0042] Furthermore, according to the above settings, the first folding plate (11) and the second folding plate (12) can be interconnected and extended through the connecting block (15) and the two connecting rods (14), and the supporting position for the lower limbs can be freely changed according to the length of the patient's lower limbs and the traction length, which is convenient for medical staff to perform traction. At the same time, since the two connecting rods (14) are rotatably connected to the connecting block (15), by rotating the angles of the two connecting rods (14) on the connecting block (15), the first folding plate (11) and the second folding plate (12) can be folded, which is convenient for storing the device and reducing the floor area.

[0043] Please refer to Figures 1-2 As shown, a clamping block (16) is fixedly installed on the top of the connecting block (15) by bolt connection. The outer contour size of the connecting block (15) is the same as the inner contour size of the sliding groove (13).

[0044] Wherein the outer contour size of the connecting block (15) is the same as the inner contour size of the sliding groove (13). When the connecting block (15) is exposed between the first folding plate (11) and the second folding plate (12), the clamping block (16) is fixedly installed on the top of the connecting block (15) by bolts, which can achieve the effect of pressing the two connecting rods (14), thereby improving the stability between the connecting rods (14) and the connecting block (15), and avoiding the rotation of the connecting rods (14) and the connecting block (15) during traction, which affects the traction effect.

[0045] Please refer to Figures 1-3 As shown, the adjusting mechanism (2) includes two fixing bars (21). The two fixing bars (21) are respectively fixedly connected to the tops of the corresponding first folding plate (11) and the second folding plate (12). Slide blocks (22) are slidably connected in a limited way on the two fixing bars (21). A rectangular sleeve (23) is rotatably connected to the top of the slide block (22). A support rod (24) is slidably connected in the rectangular sleeve (23). The top end of the support rod (24) is rotatably connected to an arc-shaped support frame (25) for supporting the patient's lower limbs. Tightening knobs adapted to them are provided at the rotation point of the slide block (22) and the rectangular sleeve (23), the rotation point of the support rod (24) and the arc-shaped support frame (25), and the position near the top end of the rectangular sleeve (23) to improve the stability between the connecting parts.

[0046] By sliding the slider (22) located on the first folding plate (11) and the second folding plate (12), it can stably slide on the fixed bar (21), thereby driving the rectangular sleeve (23), the support rod (24) and the arc-shaped support frame (25) to move. During this period, the position of the support rod (24) in the rectangular sleeve (23) can also be stretched up and down. When moving to the specified position and the specified height, it can be reinforced by the corresponding fastening knob, enhancing the stability of the adjusted structure, solving the problem that the traditional device is inconvenient to adjust the support angle and the traction angle. At the same time, the setting of the two sets of adjustment mechanisms (2) can separately support the patient's thigh and calf and foot, further improving the stability of the support and also increasing the applicable range of the device for different traction angles.

[0047] Please refer to Figures 1-2 As shown, both ends of the fixed bar (21) are fixedly connected with stoppers (26) for preventing the slider (22) from sliding out of the range of the fixed bar (21) through screws, and the size of the stopper (26) is adapted to the size of the slider (22).

[0048] Furthermore, through the corresponding setting of the two stoppers (26), the slider (22) can be limited to prevent the slider (22) from sliding out of the range of the fixed bar (21), and at the same time, it has the effect of facilitating the disassembly and assembly of the slider (22) and the connected structure for replacement and maintenance at any time.

[0049] Please refer to Figures 1-3 As shown, one end of the first folding plate (11) is provided with a claw groove (4) adapted to the end rail of the patient's hospital bed. The shape of the claw groove (4) is cross-shaped. The first folding plate (11) is also provided with a slot at the top of the claw groove (4), and a plug block (41) adapted to the claw groove (4) is inserted into the slot. The first folding plate (11) is fixedly connected with a plug rod (42) for connecting with an externally connected perforated connector near the lower surface of the claw groove (4).

[0050] Furthermore, through the setting of the claw groove (4) and the plug rod (42), a larger applicable range for externally connected support members in different environments can be achieved, meeting more connection requirements. At the same time, the unique shape setting of the claw groove (4) can achieve quick and stable clamping with the metal rail of the traditional hospital bed, improving the connection efficiency. In addition, after the plug rod (42) is inserted into the slot, it can further abut and limit the metal rail clamped in the claw groove (4), enhancing the stability effect of the connection between the first folding plate (11) and the hospital bed.

[0051] Please refer to Figures 1-3As shown, clamping grooves (5) are formed on both sides of the first folding plate (11) and the second folding plate (12). Connecting belts (51) for connecting the clamping grooves (5) on the first folding plate (11) are rotatably connected in the two clamping grooves (5) on the second folding plate (12).

[0052] After the first folding plate (11) and the second folding plate (12) are used up and need to be stored and folded, by rotating the two connecting belts (51), they are clamped with the corresponding clamping grooves (5) on the first folding plate (11), so as to achieve the effect of restraining the first folding plate (11), improving the stability of the first folding plate (11) and the second folding plate (12) after folding and storage, and preventing the two from unfolding again.

[0053] Please refer to Figures 1-7 As shown, the traction mechanism (3) includes two fixing plates (31) fixedly connected to one end of the second folding plate (12) opposite to the first folding plate (11). A traction frame (32) is slidably connected between the two fixing plates (31) in a limited way. A groove (323) is formed at the top of the traction frame (32), and a traction box (33) is rotatably connected in the groove (323). A fixed pulley (34) is fixedly connected in the traction box (33), and a movable pulley (35) is slidably connected. A first traction rope (37) is fixedly connected to one side of the movable pulley (35) away from the fixed pulley (34). One end of the first traction rope (37) away from the movable pulley (35) is fixedly connected to a traction bow (310) for connecting a steel needle. A second traction rope (371) is wound between the fixed pulley (34) and the movable pulley (35), and the second traction rope (371) is wound around the fixed pulley (34) and the movable pulley (35) in a pulley block winding manner. One end of the second traction rope (371) away from the movable pulley (35) penetrates through the traction box (33) and is wound around a winding roller (38). A motor (39) is fixedly connected to one side of the traction box (33) close to the winding roller (38), and the output shaft of the motor (39) is inserted and fixed to the winding roller (38).

[0054] When the traction mechanism (3) is in use, first, the steel needle after puncturing the patient's bone needs to be clamped by the traction bow (310). Then, the motor (39) is started. Driven by the output shaft of the motor (39), the wire winding roller (38) winds the second traction rope (371). At this time, as the second traction rope (371) is wound, the movable pulley (35) will continuously approach the fixed pulley (34) under the traction force of the second traction rope (371), and pull the first traction rope (37) and the wire winding roller (38) towards the traction box (33), thereby achieving the effect of gravity traction. The magnitude of the traction force is related to the number of turns of the output shaft rotation, and it has the effect of automatically adjusting the traction force according to requirements. Compared with the traditional use of a weight for the traction force value, it will be more accurate and easier to control. The design of the fixed pulley (34) and the movable pulley (35) makes use of the principle of a pulley block, which is more labor-saving, reduces the power consumption of the device, and the wound second traction rope (371) is also more stable than the traditional single wire routing method, making the traction force of the device more stable.

[0055] Please refer to Figures 3-7 As shown, one end of the second traction rope (371) between the fixed pulley (34) and the movable pulley (35) is fixedly connected with a tension sensor (36), and the other end of the tension sensor (36) is fixedly connected with the fixed pulley (34).

[0056] By setting a tension sensor (36) at the end of the second traction rope (371), it is possible to monitor the tension in real time and display it on an external display screen. When the tension data shows continuous large-scale fluctuations, a warning signal can be sent to an external controller to remind medical staff to come and check the patient's condition, achieving the effect of monitoring the traction force and giving a warning.

[0057] Please refer to Figures 1-5 As shown, both sides of the traction frame (32) are provided with limit grooves (321), and a plurality of positioning holes (322) are formed in the limit grooves (321). On the opposite sides of the two fixing plates (31), limit blocks (311) adapted to the limit grooves (321) are fixedly connected, and positioning blocks (312) adapted to the positioning holes (322) are penetrated.

[0058] By the mutual adaptation of the limit grooves (321) and the positioning holes (322), it is possible to achieve the effect of freely moving and rotating the traction box (33), so that the traction frame (32) can freely move and turn within the fixing plate (31), facilitating the folding and unfolding of the traction frame (32). And the positioning holes (322) and the positioning blocks (312) adapted to them can achieve positioning of the traction frame (32) after adjusting the height of the traction frame (32) to keep it at a stable traction height.

[0059] A simple detachable intraoperative traction device for fractures in this embodiment has the following working principle: Before use, the device can have a greater scope of application for external support members in different environments and meet more connection requirements through the settings of the claw groove (4) and the insertion rod (42). At the same time, the unique shape setting of the claw groove (4) can achieve quick and stable clamping with the metal railing of a traditional hospital bed, improving the connection efficiency. In addition, after the insertion rod (42) is inserted into the slot, it can further abut and limit the metal railing clamped in the claw groove (4), enhancing the stability of the connection between the first folding plate (11) and the hospital bed;

[0060] When the device is in use, by adjusting the positions of the connecting block (15) between the first folding plate (11) and the second folding plate (12) and the two connecting rods (14) in the sliding groove (13), the effect of mutual connection and extension can be achieved. It has the ability to freely change the supporting position of the lower limb according to the length of the patient's lower limb and the traction length, facilitating the medical staff to perform traction. At the same time, since the two connecting rods (14) are rotatably connected to the connecting block (15), by rotating the angles of the two connecting rods (14) on the connecting block (15), the effect of folding the first folding plate (11) and the second folding plate (12) can be achieved, facilitating the storage of the device and reducing the floor area. And through the mutual adaptation of the limiting groove (321) and the positioning hole (322), the effect of freely moving and rotating the traction box (33) can be achieved, enabling the traction frame (32) to freely move and turn within the fixed plate (31), facilitating the folding and unfolding of the traction frame (32). The positioning hole (322) and the positioning block (312) adapted to it can achieve positioning of the traction frame (32) after adjusting the height of the traction frame (32), keeping it at a stable traction height, thus achieving the effects of convenient adjustment, quick disassembly and assembly, and having the advantage of small floor area.

[0061] Subsequently, use the traction bow (310) to clamp the steel needle after puncturing the patient's bone. Then start the motor (39). Driven by the output shaft of the motor (39), the wire winding roller (38) winds up the second traction rope (371). At this time, as the second traction rope (371) is wound up, the movable pulley (35) will continuously approach the fixed pulley (34) under the traction force of the second traction rope (371), and pull the first traction rope (37) and the wire winding roller (38) towards the traction box (33), thereby achieving the effect of gravity traction. The magnitude of the traction force is related to the number of turns of the output shaft rotation, having the effect of automatically adjusting the traction force magnitude according to requirements, and being more accurate and easier to control compared to the traditional use of a weight with a fixed pulling force value. The design of the fixed pulley (34) and the movable pulley (35) utilizes the principle of a pulley block, which is more labor-saving, reduces the power consumption of the device, and the wound second traction rope (371) is also more stable than the traditional single wire routing method, making the traction force of the device more stable;

[0062] It should be noted that by setting a tensile force sensor (36) at the end of the second traction rope (371), it is possible to monitor the tensile force in real time and display it on an external display screen. When the tensile force data shows continuous large-range fluctuations, a warning signal can be sent to an external controller to remind medical staff to come and check the patient's condition, achieving the effect of monitoring the traction force and giving a warning.

[0063] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, then such directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, then the directional indications will also change accordingly.

[0064] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, then such descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, "a plurality" means two or more. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0065] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims within the present invention.

Claims

1. A simple and detachable intraoperative traction device for fractures, characterized in that: include: A folding mechanism (1) is installed at one end of the patient bed and is used to adjust the traction length according to the length of the patient's lower limbs; The adjustment mechanism (2) is installed on the folding mechanism (1) and is used for adaptive adjustment according to the traction angle of the patient's lower limbs; The traction mechanism (3) is installed on the folding mechanism (1) and is used to improve the stability of traction of heavy objects.

2. A simple detachable intraoperative traction device for fractures as claimed in claim 1, characterized in that: The folding mechanism (1) comprises a first folding plate (11) and a second folding plate (12); one end of the first folding plate (11) is connected to the patient bed; opposite ends of the first folding plate (11) and the second folding plate (12) are provided with a sliding groove (13); a connecting rod (14) is slidably connected in the sliding groove (13); opposite ends of the two connecting rods (14) are rotatably connected to a connecting block (15) via a latch.

3. A simple detachable intraoperative traction device for fractures as claimed in claim 2, characterized in that: A clamping block (16) is fixedly mounted on the top of the connecting block (15) by bolt connection, and the outer circle contour size of the connecting block (15) is the same as the inner circle contour size of the sliding groove (13).

4. A simple and detachable intraoperative traction device for fractures as claimed in claim 1, characterized in that: The adjustment mechanism (2) comprises two fixing bars (21), the two fixing bars (21) being fixedly connected to the top of the corresponding first folding plate (11) and the second folding plate (12), respectively; the two fixing bars (21) are both connected to a slider (22) in a limited sliding manner; the top of the slider (22) is rotatably connected to a rectangular sleeve (23); a support rod (24) is slidably connected inside the rectangular sleeve (23); the top of the support rod (24) is rotatably connected to an arc-shaped support frame (25) for supporting the patient's lower limbs; the rotation point between the slider (22) and the rectangular sleeve (23), the rotation point between the support rod (24) and the arc-shaped support frame (25), and the rectangular sleeve (23) near the top are all provided with a fastening knob matched therewith, so as to improve the stability between the connecting parts.

5. A simple and detachable intraoperative traction device for fractures as claimed in claim 4, characterized in that: Both ends of the fixing bar (21) are fixedly connected by screws with stoppers (26) for preventing the sliding block (22) from moving out of the range of the fixing bar (21), and the size of the stopper (26) is adapted to the size of the sliding block (22).

6. A simple and detachable intraoperative traction device for fractures as claimed in claim 2, characterized in that: A hook groove (4) for matching with the end railing of the patient's bed is provided at one end of the first folding plate (11), and the hook groove (4) is in the shape of a cross. A slot is also provided at the top of the hook groove (4) of the first folding plate (11), and a plug block (41) matching with the hook groove (4) is inserted into the slot. A plug rod (42) for connecting with an external plug-in connector with a hole is fixedly connected to the lower surface of the first folding plate (11) near the hook groove (4).

7. A simple and detachable intraoperative traction device for fractures as claimed in claim 6, characterized in that: The first folding plate (11) and the second folding plate (12) are both provided with card slots (5) on both sides, and the two card slots (5) on the second folding plate (12) are both rotatably connected with connection belts (51) for connecting the card slots (5) on the first folding plate (11).

8. The simple and detachable intraoperative traction device for fractures according to claim 1, characterized in that: The traction mechanism (3) comprises two fixed plates (31) fixedly connected to one end of the second folding plate (12) opposite to the first folding plate (11); a traction frame (32) is slidably connected between the two fixed plates (31); a groove (323) is provided on the top of the traction frame (32); a traction box (33) is rotatably connected in the groove (323); a fixed pulley (34) is fixedly connected in the traction box (33) and a movable pulley (35) is slidably connected; a first traction rope (37) is fixedly connected to the side of the movable pulley (35) away from the fixed pulley (34); and the first traction rope (37) is away from the fixed pulley (34). One end of the movable pulley (35) is fixedly connected to a traction bow (310) for connecting a steel needle, a second traction rope (371) is wound between the fixed pulley (34) and the movable pulley (35), and a pulley block is used to wind the second traction rope (371) and the fixed pulley (34) and the movable pulley (35), one end of the second traction rope (371) away from the movable pulley (35) passes through the traction box (33) and is wound around a winding roller (38), a motor (39) is fixedly connected to the side of the traction box (33) close to the winding roller (38), and the output shaft of the motor (39) is plugged and fixed to the winding roller (38).

9. A simple and detachable intraoperative traction device for fractures as claimed in claim 8, characterized in that: One end of the second traction rope (371) located between the fixed pulley (34) and the movable pulley (35) is fixedly connected to a tension sensor (36), and the other end of the tension sensor (36) is fixedly connected to the fixed pulley (34).

10. The simple and detachable intraoperative traction device for fractures according to claim 8, characterized in that: Limiting grooves (321) are provided on both sides of the traction frame (32), and a plurality of positioning holes (322) are provided in the limiting grooves (321). Limiting blocks (311) matching the limiting grooves (321) are fixedly connected to opposite sides of the two fixing plates (31), and positioning blocks (312) matching the positioning holes (322) are provided through the fixing plates.

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