Medical traction device

Abstract

The utility model discloses a medical traction device which comprises two moving seats, a supporting frame is fixedly arranged between the two moving seats, a multi-point traction mechanism is arranged on the supporting frame, the output end of the multi-point traction mechanism is fixedly connected with a traction frame, a driving mechanism matched with the multi-point traction mechanism is arranged on the supporting frame, and the multi-point traction mechanism is fixedly connected with the traction frame. Sliding rails are fixedly arranged on the two sides of the supporting frame, the traction frame is slidably connected with the sliding rails, a supporting rod is fixedly arranged on the traction frame, two sliding seats are slidably arranged on the supporting rod, and the two sliding seats are fixedly connected with traction rings through traction rods. The utility model relates to the technical field of medical instruments, through the arrangement of the device, multi-point traction can be carried out, the traction gravity can be dispersed, the load of a single traction point can be reduced, so that the overall stability and safety of the traction device are improved, and the transverse position of a traction ring can be locked through the matching of an electromagnetic plate and a permanent magnet block.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a medical traction device. Background Art

[0002] Nowadays, when medical staff disinfect the patient's legs, they often need to lift the patient's legs to a certain height to facilitate the disinfection operation. In order to save manpower, when lifting the patient's legs, a traction device is often used to assist medical staff in the operation. For example, the existing published patent (application number is CN202020309188.9) is a general surgery traction device, which realizes the human-driven lifting and lowering of the patient's legs through the cooperation of drive shafts, gears, racks and other components, which is labor-saving and simple to operate.

[0003] When the above-mentioned device pulls the patient's legs, it only drives the patient's legs to rise and fall through a single-point traction cross bar of a vertical beam. Since the cross bar needs to withstand a large tensile force, the connection point is prone to withstand a large stress concentration, which may cause metal fatigue and fracture at the connection point. Once the cross bar breaks, it will affect the stability and safety of the entire traction device, and thus threaten the health and safety of the patient and medical staff. In addition, the traction ring on the above-mentioned device can adjust the lateral position by sliding for easy use. However, after adjusting the lateral position of the traction ring, the above-mentioned device cannot effectively lock the traction ring, so that the traction ring is prone to disorderly sliding with the shaking of the patient's legs, which will interfere with the disinfection work of medical staff.

[0004] Therefore, we propose a medical traction device to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the above problems and proposes a medical traction device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A medical traction device comprises two movable seats, a support frame is fixedly arranged between the two movable seats, a multi-point traction mechanism is arranged on the support frame, and the output end of the multi-point traction mechanism is fixedly connected to the traction frame, a driving mechanism matched with the multi-point traction mechanism is arranged on the support frame, slide rails are fixedly arranged on both sides of the support frame, and the traction frame is slidably connected to the slide rails, a support rod is fixedly arranged on the traction frame, and two slide seats are slidably arranged on the support rod, and the two slide seats are fixedly connected to the traction ring through the traction rod, a slide groove is provided on the traction frame, and the slide seat is slidably connected to the slide groove through a slider, a permanent magnet block is fixedly embedded on the upper end of the slider, and an electromagnetic plate in contact with the permanent magnet block is fixedly embedded in the slide groove.

[0008] Preferably, the multi-point traction mechanism consists of a protective shell, three winding wheels and three traction ropes. The protective shell is fixedly arranged on a support frame, and a rotating shaft is rotatably arranged in the protective shell. The three winding wheels are fixedly sleeved on the rotating shaft, and the three winding wheels are equidistantly distributed. The three traction ropes are respectively fixedly wound on the corresponding winding wheels. A rope opening matching the traction rope is opened on the lower side of the protective shell, and the end of the traction rope away from the winding wheel passes through the rope opening and is fixedly connected to the traction frame.

[0009] Preferably, the driving mechanism consists of a driving motor, a worm and a worm wheel. The driving motor is fixedly mounted on a supporting frame, and the output end of the driving motor extends into a protective shell and is fixedly connected to the worm. The worm is rotatably arranged in the protective shell, and the worm wheel is fixedly sleeved on one end of a rotating shaft, and the worm wheel is meshed with the worm.

[0010] Preferably, the developed helix angle of the worm is smaller than the friction angle between the worm and the worm wheel.

[0011] Preferably, an electric push rod is fixedly provided on each of the two movable seats, and a rubber friction pad is fixedly connected to the output end of the electric push rod.

[0012] Preferably, a battery box is fixedly provided on one side of the support frame, a battery is installed in the battery box, and the battery is electrically connected to the electromagnetic plate, the drive motor and each electric push rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the multi-point traction mechanism, the traction frame can be pulled at multiple points. Multi-point traction can disperse the traction gravity and reduce the load of a single traction point, thereby improving the overall stability and safety of the traction device. Through the electromagnetic plate, the electromagnetic plate can be energized to generate magnetism and attract the permanent magnet block, so that the traction ring can be quickly locked in position after sliding horizontally to the desired position.

[0015] 2. Through the set driving mechanism, the three winding wheels in the multi-point traction mechanism can be controlled to rotate synchronously, so as to realize the synchronous winding or releasing of the traction rope, and the driving mechanism is driven by the worm and worm wheel. Due to the low transmission efficiency of the worm and worm wheel, the driving mechanism can control the winding wheel to rotate slowly, so that medical staff can better control the traction position of the patient's legs. The worm and worm wheel are self-locking, so the traction position can be locked in real time after the driving mechanism stops.

[0016] 3. Through the battery box, the battery installed in the battery box can be used to power the electrical equipment of the traction device to avoid the cumbersome external power supply of the device. In addition, through the electric push rod, the rubber friction pad can be controlled to resist the ground, thereby increasing the friction between the traction device and the ground during operation, thereby ensuring the stability of the traction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front perspective structural schematic diagram of a medical traction device proposed by the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 3 for Figure 1 Schematic diagram of the enlarged structure at point B in the middle.

[0020] In the figure: 1 moving seat, 2 supporting frame, 3 multi-point traction mechanism, 31 protective shell, 32 winding wheel, 33 traction rope, 4 traction frame, 5 driving mechanism, 51 driving motor, 52 worm, 53 worm wheel, 6 slide rail, 7 supporting rod, 8 sliding seat, 9 traction rod, 10 traction ring, 11 slide groove, 12 slider, 13 permanent magnet block, 14 electromagnetic plate, 15 rotating shaft, 16 rope mouth, 17 electric push rod, 18 rubber friction pad, 19 battery box. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 3 A medical traction device comprises two moving seats 1, a support frame 2 is fixedly arranged between the two moving seats 1, an electric push rod 17 is fixedly arranged on the two moving seats 1, and a rubber friction pad 18 is fixedly connected to the output end of the electric push rod 17, the model of the electric push rod 17 is XTL-100, and the setting of the electric push rod 17 can control the rubber friction pad 18 to contact with the ground to ensure the stability of the placement of the entire device and prevent the device from slipping;

[0023] A multi-point traction mechanism 3 is provided on the support frame 2, and the output end of the multi-point traction mechanism 3 is fixedly connected to the traction frame 4. The multi-point traction mechanism 3 consists of a protective shell 31, three winding wheels 32 and three traction ropes 33. The protective shell 31 is fixedly arranged on the support frame 2, and a rotating shaft 15 is rotatably arranged in the protective shell 31. The three winding wheels 32 are all fixedly sleeved on the rotating shaft 15, and the three winding wheels 32 are equidistantly distributed. The three traction ropes 33 are respectively fixedly wound around the corresponding winding wheels 32. A rope opening 16 matching the traction rope 33 is provided on the lower side of the protective shell 31, and one end of the traction rope 33 away from the winding wheel 32 passes through the rope opening 16 and is fixedly connected to the traction frame 4. The three traction ropes 33 can be controlled to be synchronously wound or released by the three winding wheels 32 arranged on the rotating shaft 15, so as to realize multi-point traction of the traction frame 4, thereby improving the overall stability and safety of the traction work.

[0024] The support frame 2 is provided with a driving mechanism 5 that cooperates with the multi-point traction mechanism 3. The driving mechanism 5 is composed of a driving motor 51, a worm 52 and a worm wheel 53. The driving motor 51 is a forward and reverse motor with forward and reverse functions. Its model is FSSD200. The driving motor 51 is fixedly arranged on the support frame 2, and the output end of the driving motor 51 extends into the protective shell 31 and is fixedly connected to the worm 52. The worm 52 is rotatably arranged in the protective shell 31, and the worm wheel 53 is fixedly sleeved on one end of the rotating shaft 15. , and the worm wheel 53 is meshed with the worm 52. Through the transmission cooperation of the worm 52 and the worm wheel 53, the low transmission efficiency can be utilized, so that the driving motor 51 can control the three winding wheels 32 to rotate slowly, which is convenient for medical staff to control the entire traction process. The unfolding helix angle of the worm 52 is smaller than the friction angle between the worm 52 and the worm wheel 53. The unfolding helix angle design of the worm 52 can realize the self-locking between the worm 52 and the worm wheel 53, which is convenient for real-time locking of the traction position after the driving motor 51 stops.

[0025] Slide rails 6 are fixedly provided on both sides of the support frame 2, and the traction frame 4 is slidably connected to the slide rails 6. A support rod 7 is fixedly provided on the traction frame 4, and two slide seats 8 are slidably provided on the support rod 7. The two slide seats 8 are fixedly connected to the traction ring 10 through the traction rod 9. A slide groove 11 is provided on the traction frame 4, and the slide seat 8 is slidably connected to the slide groove 11 through a slider 12. A permanent magnet block 13 is fixedly embedded in the upper end of the slider 12, and an electromagnetic plate 14 in contact with the permanent magnet block 13 is fixedly embedded in the slide groove 11. A battery box 19 is fixedly provided on one side of the support frame 2, and a battery is installed in the battery box 19, and the battery is electrically connected to the electromagnetic plate 14, the driving motor 51 and each electric push rod 17. The battery can be provided to power the electrical equipment in the device to avoid the cumbersomeness of an external power supply. In actual practical use, a charging port is provided on the battery box 19 to facilitate charging of the battery in the battery box 19.

[0026] The operating principle of the utility model is now described as follows:

[0027] When using the device, the device is moved to the operating bed through the moving seat 1, and the bed body is passed through the support frame 2. Then, the universal wheel on the moving seat 1 is locked, and the rubber friction pad 18 is controlled to contact the ground through the electric push rod 17 to ensure the stability of the entire device. Then, the drive motor 51 is started, and the drive motor 51 controls the rotation of the worm 52. Under the transmission cooperation of the worm gear 53, the rotating shaft 15 drives the three winding wheels 32 to rotate synchronously to release the traction rope 33, so that the traction frame 4 drives the two traction rings 10 to move down. After moving down to the desired position, the drive motor 51 is turned off, and then, The two traction rings 10 are slid transversely to the desired transverse position. Subsequently, the electromagnetic plate 14 is energized through an external switch to generate magnetism and attract the permanent magnet block 13, thereby locking the transverse position of the traction ring 10. Then, the patient puts the leg to be disinfected into the traction ring 10. Then, the drive motor 51 is controlled to rotate in the opposite direction. Similarly, the rotating shaft 15 will drive the three winding wheels 32 to reversely rewind the traction rope 33, so that the traction frame 4 slowly rises under the pull of the traction rope 33. When the patient's leg is lifted to the desired position, the drive motor 51 is turned off. Then, the medical staff can disinfect the patient's lifted leg.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A medical traction device, comprising two movable seats (1), characterized in that: A support frame (2) is fixedly arranged between the two moving seats (1), a multi-point traction mechanism (3) is arranged on the support frame (2), and the output end of the multi-point traction mechanism (3) is fixedly connected to a traction frame (4), a driving mechanism (5) matched with the multi-point traction mechanism (3) is arranged on the support frame (2), slide rails (6) are fixedly arranged on both sides of the support frame (2), and the traction frame (4) is slidably connected to the slide rails (6), and a traction frame (4) is fixedly arranged on the traction frame (4). A support rod (7) is provided with two slide seats (8) slidably arranged on the support rod (7), the two slide seats (8) are fixedly connected to a traction ring (10) via a traction rod (9), a slide groove (11) is provided on the traction frame (4), and the slide seat (8) is slidably connected to the slide groove (11) via a slider (12), a permanent magnet block (13) is fixedly embedded at the upper end of the slider (12), and an electromagnetic plate (14) in contact with the permanent magnet block (13) is fixedly embedded in the slide groove (11).

2. A medical traction device according to claim 1, characterized in that: The multi-point traction mechanism (3) is composed of a protective shell (31), three winding wheels (32) and three traction ropes (33). The protective shell (31) is fixedly arranged on the support frame (2), and a rotating shaft (15) is rotatably arranged in the protective shell (31). The three winding wheels (32) are all fixedly sleeved on the rotating shaft (15), and the three winding wheels (32) are evenly distributed. The three traction ropes (33) are respectively fixedly wound around the corresponding winding wheels (32). A rope opening (16) matching the traction rope (33) is opened on the lower side of the protective shell (31), and one end of the traction rope (33) away from the winding wheel (32) passes through the rope opening (16) and is fixedly connected to the traction frame (4).

3. A medical traction device according to claim 2, characterized in that: The driving mechanism (5) is composed of a driving motor (51), a worm (52) and a worm wheel (53); the driving motor (51) is fixedly arranged on the support frame (2); the output end of the driving motor (51) extends into the protective shell (31) and is fixedly connected to the worm (52); the worm (52) is rotatably arranged in the protective shell (31); the worm wheel (53) is fixedly sleeved on one end of the rotating shaft (15), and the worm wheel (53) is meshed with the worm (52).

4. A medical traction device according to claim 3, characterized in that: The developed helix angle of the worm (52) is smaller than the friction angle between the worm (52) and the worm wheel (53).

5. The medical traction device according to claim 3, characterized in that: An electric push rod (17) is fixedly arranged on each of the two movable seats (1), and a rubber friction pad (18) is fixedly connected to the output end of the electric push rod (17).

6. A medical traction device according to claim 5, characterized in that: A power storage box (19) is fixedly provided on one side of the support frame (2), a battery is installed in the power storage box (19), and the battery is electrically connected to the electromagnetic plate (14), the drive motor (51) and each electric push rod (17).

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