Traction support for fracture reduction
By designing a clamping and positioning mechanism that automatically recognizes and fixes the patient's thighs, and a traction mechanism that tractions through the soles of the feet, the problem of manual adjustment of the existing traction bracket is solved, and automatic adjustment and efficient diagnosis and treatment are achieved.
Patent Information
- Application Number
- CN202510332478.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2025-06-20
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing traction stent for fracture reduction cannot be automatically adjusted according to the patient's lower limb length, and manual operation is required, resulting in a long operation time and affecting the diagnosis and treatment efficiency.
A traction bracket including a base, an adjustable seat, a mounting plate, an adjustment mechanism, a clamping positioning mechanism and a traction mechanism are designed. The patient's thigh is automatically identified and fixed by the clamping positioning mechanism, and the traction mechanism tensions the lower limbs through the soles of the feet to achieve traction at any angle.
Automatic adjustment of the traction bracket is realized, the operation process is simplified, the diagnosis and treatment efficiency is improved, and the traction flexibility is increased.
Smart Images
Figure CN120168191A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of orthopedic rehabilitation, and in particular relates to a traction bracket for fracture reduction. Background Art
[0002] A traction brace for fracture reduction is a medical device designed specifically for treating fractures by applying appropriate traction to help restore the normal alignment of bones. This device is essential to ensure that the fracture site is properly aligned and promote the healing process. The traction brace can stabilize the fracture area, reduce the risk of complications caused by inaccurate reduction, and help patients start rehabilitation training earlier.
[0003] The current traction brace cannot automatically adjust the brace according to the length of the patient's lower limbs. It requires manual operation, which takes a long time and affects the efficiency of diagnosis and treatment. Summary of the invention
[0004] The purpose of the present invention is to provide a traction support for fracture reduction, aiming to solve the problem that the current traction support cannot automatically adjust the support according to the length of the patient's lower limbs, requires manual operation, takes a long time to operate, and affects the efficiency of diagnosis and treatment.
[0005] The present invention is implemented as follows: a traction support for fracture reduction includes a base and an adjustable seat. The traction support for fracture reduction also includes two sets of mounting plates. An adjustment mechanism is provided on the mounting plate. A clamping and positioning mechanism is installed on the adjustment mechanism. The clamping and positioning mechanism is used to fix the patient's thigh. A traction mechanism is installed on the clamping and positioning mechanism. The traction mechanism is used to tension the patient's lower limbs through the soles of the feet.
[0006] Preferably, the adjusting mechanism is a telescopic rod, a support plate is fixedly provided on the telescopic rod, a group of first guide rods are fixedly provided on the support plate, a first screw is also rotatably installed on the support plate, the first screw is driven by a first motor fixedly installed on the support plate, an adjusting slider is sleeved on the first screw, the adjusting slider is slidably connected to the first guide rod, the clamping and positioning mechanism is fixedly installed on the adjusting slider, and the support plate and the mounting plate are also connected by a guide kit.
[0007] Preferably, the clamping and positioning mechanism includes two groups of brackets, a winding drum is rotatably installed on one group of brackets, a sliding rod is slidably installed on the other group of brackets, a first magnetic block is fixedly installed on the sliding rod, a connecting plate is fixedly installed on the first magnetic block, a third magnetic block is fixedly installed on the connecting plate, a third electromagnet is fixedly installed on the winding drum, the first electromagnet is fixedly installed on the bracket on which the sliding rod is installed, a limiting cloth is wound in the winding drum, a third motor is arranged on the winding drum, the third motor is used to control the winding of the limiting cloth, a pressure sensor is fixedly installed on the third electromagnet, and a distance measuring sensor is fixedly installed on the bracket.
[0008] Preferably, the traction mechanism includes a second motor and a worm gear. A set of worm gears is rotatably arranged on each set of brackets, and a set of second motors is fixedly arranged on each set of brackets. The output shaft of the second motor is fixedly connected with a worm, and the worm meshes with the corresponding worm gear. A second guide rod is fixedly installed on the worm gear, and a traction slider is slidably arranged on the second guide rod. A fourth motor is fixedly installed on the worm gear, and the output shaft of the fourth motor is fixedly connected with a second screw rod. The traction slider is threadedly connected with the second screw rod. A limiting rod is fixedly installed on the traction slider, and a profiling pressing plate is slidably arranged on the limiting rod. A second electromagnet is fixedly installed on the traction slider, and a second magnetic block is fixedly installed on the profiling pressing plate. An airbag is arranged in the profiling pressing plate, and a pressure sensor is arranged in the airbag.
[0009] Preferably, limiting ribs are arranged in the limiting cloth, and the limiting ribs are parallel to the axis of the patient's thigh.
[0010] Preferably, the mounting plates are rotatably connected to the base.
[0011] Preferably, a moving component is arranged on the base.
[0012] A traction bracket for fracture reduction provided by the present invention can automatically identify and lock the thigh part of a patient through a clamping and positioning mechanism, fix and traction the patient's sole through a traction mechanism, can realize traction at any angle, greatly increases the flexibility, and is simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a first perspective structural schematic diagram of a traction bracket for fracture reduction provided by an embodiment of the present invention;
[0014] Figure 2 is a second perspective structural schematic diagram of a traction bracket for fracture reduction provided by an embodiment of the present invention;
[0015] Figure 3 is a first perspective schematic diagram of a partial structure of a traction bracket for fracture reduction provided by an embodiment of the present invention;
[0016] Figure 4 is a second perspective schematic diagram of a partial structure of a traction bracket for fracture reduction provided by an embodiment of the present invention;
[0017] Figure 5 is an installation structural schematic diagram of the traction mechanism provided by an embodiment of the present invention.
[0018] In the attached drawings: 1. base; 2. adjustable seat; 3. mounting plate; 4. telescopic rod; 5. guide kit; 6. limiting cloth; 7. winding drum; 8. sliding rod; 9. bracket; 10. second guide rod; 11. traction slider; 12. contour pressure plate; 13. first motor; 14. adjustment slider; 15. distance measuring sensor; 16. second motor; 17. worm gear; 18. first screw; 19. second screw; 20. connecting plate; 21. first magnetic block; 22. third motor; 23. second electromagnet; 24. second magnetic block; 25. third magnetic block; 26. third electromagnet. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0020] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.
[0021] like Figure 1 , Figure 2 and Figure 3 As shown, a traction support for fracture reduction provided by an embodiment of the present invention includes a base 1 and an adjustable seat 2, and the traction support for fracture reduction also includes two sets of mounting plates 3, and an adjustment mechanism is arranged on the mounting plate 3, and a clamping and positioning mechanism is installed on the adjustment mechanism, and the clamping and positioning mechanism is used to fix the patient's thigh, and a traction mechanism is installed on the clamping and positioning mechanism, and the traction mechanism is used to tension the patient's lower limbs through the soles of the feet.
[0022] In the embodiment of the present invention, when in use, the patient lies on the adjustable seat, and the adjustable seat can be flat or tilted for the patient to lie flat or lean on. After the patient is ready, the clamping and positioning mechanism is lifted by the adjustment mechanism, and the patient's thigh is fixed by the clamping and positioning mechanism. During this process, the position of the patient's calf is detected, so as to control the traction mechanism to fix the patient's sole, and traction is achieved on the patient from the sole. When adjustment is needed, the angles of the patient's thigh and calf can be controlled at the same time, which is convenient for the doctor to operate.
[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, as a preferred embodiment of the present invention, the adjusting mechanism includes a telescopic rod 4. A support plate is fixedly arranged on the telescopic rod 4. A group of first guide rods are fixedly arranged on the support plate. A first screw rod 18 is also rotatably installed on the support plate. The first screw rod 18 is driven by a first motor 13 fixedly installed on the support plate. An adjusting slider 14 is sleeved on the first screw rod 18. The adjusting slider 14 is slidably connected with the first guide rods. The clamping and positioning mechanism is fixedly installed on the adjusting slider 14. The support plate and the mounting plate 13 are also connected through a guiding kit 5.
[0024] In this embodiment, during use, the adjusting mechanism can drive the clamping and positioning mechanism to rise and fall or move. When lifting, the telescopic rod 4 is started, and the telescopic rod 4 is used to drive the support plate to rise or fall. Since the clamping and positioning mechanism is installed on the adjusting slider 14, the clamping and positioning mechanism will rise and fall synchronously. When it is necessary to control the front and back movement of the clamping and positioning mechanism, the first motor 13 is started, and the first motor 13 is used to drive the first screw rod 18 to rotate. When the first screw rod 18 rotates, it will drive the adjusting slider 14 to move back and forth along the first guide rods, and then the clamping and positioning mechanism will also move back and forth accordingly.
[0025] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, as a preferred embodiment of the present invention, the clamping and positioning mechanism includes two groups of brackets 9. A winding drum 7 is rotatably installed on one group of brackets 9. A sliding rod 8 is slidably installed on the other group of brackets 9. A first magnetic block 21 is fixedly arranged on the sliding rod 8. A connecting plate 20 is fixedly arranged on the first magnetic block 21. A third magnetic block 25 is fixedly arranged on the connecting plate 20. A third electromagnet 26 is fixedly installed on the winding drum 7. A first electromagnet is fixedly arranged on the bracket 9 where the sliding rod 8 is installed. A limiting cloth 6 is wound inside the winding drum 7. A third motor 23 is arranged on the winding drum 7. The third motor 23 is used to control the winding of the limiting cloth 6. A pressure sensor is fixedly arranged on the third electromagnet 26. A distance measuring sensor 15 is fixedly arranged on the bracket 9.
[0026] In this embodiment, the slide rod 8 can rotate relative to the bracket 9 and slide along the axis direction of the slide rod 8. When performing traction, the user needs to be fixed. Before fixation, the first electromagnet generates a strong magnetic field to attract the first magnetic block 21. The first magnetic block 21 drives the slide rod 8 to slide towards the side away from the winding drum 7. The first magnetic block 21 is relatively fixed to the first electromagnet. At this time, the limit cloth 6 is in a tensioned state and is overall horizontal. The height of the limit cloth 6 can be adjusted through the adjustment mechanism. Adjust its height to make it flush with the horizontal part of the adjustable seat 2, so as to ensure that the user's thighs are in a horizontal state. In the horizontal state, by starting the first motor 13, the first motor 13 is used to drive the adjustment slider 14 to move, and the limit cloth 6 slides relative to the user's thighs. Record the detection signal of the distance measuring sensor. Calculate the diameter of the patient's calf according to the detection signal of the distance measuring sensor and the number of rotation turns of the first motor 13. For example, if the time interval from the appearance to the disappearance of the detection signal is t, within the time t, the number of rotation turns of the first motor 13 is n, and the distance that the adjustment slider 14 moves when the first motor 13 rotates one turn is L, then the diameter of the patient's calf is nL, so as to be able to determine the position of the patient's knee joint. By adjusting, make the connection part between the clamping and positioning mechanism and the traction mechanism as close as possible to the patient's knee joint. Then the adjustment mechanism gradually rises, and the third motor 22 starts to rotate, slowly releasing the limit cloth 6 to keep the position of the patient's thigh unchanged. After rising to the preset height, continue to release the limit cloth 6, but at this time the first electromagnet changes the magnetic pole and gradually increases the magnetic field intensity, pushing the first magnetic block 21 towards the winding drum 7 until the third magnetic block 25 contacts the third electromagnet 26. At this time, the third electromagnet 26 is energized to attract the third magnetic block 25. At this time, the limit cloth 6 wraps the patient's thigh, and the third motor 22 rotates in reverse to realize the tightening of the limit cloth 6, so as to fix the patient's thigh in a horizontal position; in order to be able to accurately control the clamping force on the patient's thigh, a pressure sensor is provided on the third electromagnet 26. Before the third motor 22 rotates in reverse, the third electromagnet 26 and the third magnetic block 25 attract each other, and the pressure value brought to the pressure sensor is the preset value. When the third motor 22 rotates in reverse, the pulling force applied by the third motor 22 will be used as the tension force of the limit cloth 6 to realize the clamping of the patient's thigh. The direction of this tension force is opposite to the direction in which the third magnetic block 25 attracts the third electromagnet 26. Then the pressure value of the pressure sensor will decrease. When the pressure value decreases to the preset interval, it is determined that the clamping is completed, and the third motor 22 stops rotating.
[0027] Such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, as a preferred embodiment of the present invention, the traction mechanism includes a second motor 16 and a worm gear 17. A set of worm gears 17 are rotatably arranged on each set of brackets 9, and a set of second motors 16 are fixedly arranged on each set of brackets 9. The output shaft of the second motor 16 is fixedly connected to a worm, and the worm meshes with the corresponding worm gear 17. A second guide rod 10 is fixedly installed on the worm gear 17, and a traction slider 11 is slidably arranged on the second guide rod 10. A fourth motor is fixedly installed on the worm gear 17, and the output shaft of the fourth motor is fixedly connected to a second screw rod 19. The traction slider 11 is threadedly connected to the second screw rod 19. A limiting rod is fixedly installed on the traction slider 11, and a profiling pressing plate 12 is slidably arranged on the limiting rod. A second electromagnet 23 is fixedly installed on the traction slider 11, and a second magnetic block 24 is fixedly installed on the profiling pressing plate 12. An airbag is arranged inside the profiling pressing plate 12, and a pressure sensor is arranged inside the airbag.
[0028] In this embodiment, after the patient is fixed, the second motor 16 is started. The worm is driven by the second motor 16 to rotate, and the worm drives the worm wheel 17 to rotate. The second guide rod 10 is driven by the worm wheel 17 to rotate downward, so that the second guide rod 10 is kept horizontal with the thigh. At this time, the second electromagnet 23 generates a magnetic field to attract the second magnetic block 24, and the profiling pressing plates 12 move away from each other, thus avoiding the patient's calf. During this process, the whole traction bracket does not contact the patient's calf, and the calf and the thigh are in a vertical state. The fourth motor is started, and the second screw 19 is driven by the fourth motor to rotate. The second screw 19 drives the traction slider 11 to slide towards the side close to the worm wheel 17, and the profiling pressing plates 12 will also move accordingly. After rising to a certain height, it starts to move downward. A distance sensor is arranged on the traction slider 11. When the distance value returned by the distance sensor is less than the preset value, it means that the patient's sole has not been reached yet. When the distance value returned by the distance sensor is greater than the preset value, it means that the current position has reached the patient's sole. When moving to the preset height, the second electromagnet 23 switches the magnetic pole, thus repelling the second magnetic block 24. The second magnetic block 24 will drive the profiling pressing plates 12 to slide along the limiting rods, so that the two profiling pressing plates 12 approach each other, and the patient's sole is located between the two profiling pressing plates 12. The profiling pressing plates 12 can be provided with a bottom plate for supporting the sole of the foot. When performing traction, the fourth motor is started to make the profiling pressing plates 12 move away from the worm wheel 17 to achieve the purpose of traction. And by setting the airbag, the protection of the patient's foot is formed. The magnitude of the traction force is determined according to the pressure value of the air pressure sensor in the airbag, ensuring the stability of the traction force; when multi-angle adjustment is required, the inclination angle of the thigh can be adjusted by the telescopic rod 4, and the included angle between the patient's calf and thigh can be adjusted by controlling the rotation of the second motor 16. During the adjustment process, the maximum included angle between the patient's calf and thigh is limited because the flexibility of different patients is different, and too large an included angle is likely to cause discomfort to the patient; in the present invention, the movement of each motor can also be controlled manually to achieve the purpose of manual adjustment.
[0029] As Figure 1 shown, as a preferred embodiment of the present invention, limiting ribs are arranged in the limiting cloth 6, and the limiting ribs are parallel to the axis of the patient's thigh.
[0030] As Figure 1 shown, as a preferred embodiment of the present invention, the mounting plates 3 are all rotatably connected to the base 1.
[0031] As Figure 1 shown, as a preferred embodiment of the present invention, a moving assembly is arranged on the base 1.
[0032] In this embodiment, the support force of the limiting cloth 6 can be improved by setting the limiting ribs to avoid deformation; the mounting plate 3 is rotatably connected to the base 1, which can control the opening and closing of the patient's legs and provide a higher degree of freedom of adjustment; by setting the moving component, it is convenient to transfer and carry.
[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A traction support for fracture reduction, comprising a base (1) and an adjustable seat (2), characterized in that: The traction support for fracture reduction further comprises two groups of mounting plates (3), the mounting plates (3) being provided with an adjustment mechanism, the adjustment mechanism being provided with a clamping and positioning mechanism, the clamping and positioning mechanism being used to fix the patient's thigh, the clamping and positioning mechanism being provided with a traction mechanism, the traction mechanism being used to tension the patient's lower limbs through the soles of the feet.
2. The traction support for fracture reduction according to claim 1, characterized in that: The adjusting mechanism comprises a telescopic rod (4), a supporting plate fixedly arranged on the telescopic rod (4), a group of first guide rods fixedly arranged on the supporting plate, a first screw rod (18) rotatably mounted on the supporting plate, the first screw rod (18) being driven by a first motor (13) fixedly mounted on the supporting plate, an adjusting slider (14) being sleeved on the first screw rod (18), the adjusting slider (14) being slidably connected to the first guide rod, a clamping and positioning mechanism being fixedly mounted on the adjusting slider (14), and the supporting plate and the mounting plate (13) being connected via a guide kit (5).
3. The traction support for fracture reduction according to claim 2, characterized in that: The clamping and positioning mechanism comprises two groups of brackets (9), one group of brackets (9) is rotatably mounted with a winding drum (7), the other group of brackets (9) is slidably mounted with a sliding rod (8), a first magnetic block (21) is fixedly mounted on the sliding rod (8), a connecting plate (20) is fixedly mounted on the first magnetic block (21), a third magnetic block (25) is fixedly mounted on the connecting plate (20), a third electromagnet (26) is fixedly mounted on the winding drum (7), a first electromagnet is fixedly mounted on the bracket (9) on which the sliding rod (8) is mounted, a limiting cloth (6) is wound inside the winding drum (7), a third motor (23) is mounted on the winding drum (7), the third motor (23) is used to control the winding of the limiting cloth (6), a pressure sensor is fixedly mounted on the third electromagnet (26), and a distance measuring sensor (15) is fixedly mounted on the bracket (9).
4. The traction support for fracture reduction according to claim 3, characterized in that: The traction mechanism comprises a second motor (16) and a worm wheel (17), each set of brackets (9) is rotatably provided with a set of worm wheels (17), each set of brackets (9) is fixedly provided with a set of second motors (16), an output shaft of the second motor (16) is fixedly connected with a worm, the worm is meshed with the corresponding worm wheel (17), a second guide rod (10) is fixedly installed on the worm wheel (17), a traction slider (11) is slidably provided on the second guide rod (10), and a second guide rod (11) is fixedly installed on the worm wheel (17). A fourth motor is provided, the output shaft of the fourth motor is fixedly connected to a second screw rod (19), a traction slider (11) is connected to the second screw rod (19) by a thread, a limit rod is fixedly installed on the traction slider (11), a contour pressing plate (12) is slidably arranged on the limit rod, a second electromagnet (23) is fixedly installed on the traction slider (11), a second magnetic block (24) is fixedly installed on the contour pressing plate (12), an air bag is arranged in the contour pressing plate (12), and an air pressure sensor is arranged in the air bag.
5. The traction support for fracture reduction according to claim 3, characterized in that: The limiting cloth (6) is provided with limiting ribs, which are parallel to the axis of the patient's thigh.
6. The traction support for fracture reduction according to claim 1, characterized in that: The mounting plates (3) are rotatably connected to the base (1).
7. The traction support for fracture reduction according to claim 1, characterized in that: A moving component is arranged on the base (1).