Correcting traction device

Abstract

The invention relates to the technical field of medical instruments, and discloses a correction traction device which comprises two steel rings, two connecting rods are fixedly connected to the sides, close to each other, of the two steel rings, a plurality of reinforcing rods are fixedly connected to the sides, close to each other, of the two steel rings, and correction rings are fixedly connected to the other ends of the reinforcing rods. A traction mechanism is arranged on the outer sides of the correction rings, two rotating joints are arranged between the two correction rings, an adjusting mechanism is arranged between the two correction rings, the traction mechanism comprises a plurality of internal thread sleeves, and the internal thread sleeves are rotationally connected to the outer sides of the correction rings. According to the leg correcting device, the bent portions of the legs of the patient are corrected through the synergistic effect of the pressure of the extrusion rings and the pulling force of the bandages, so that the correcting effect is improved, and due to the elastic effect of the bandages, the legs of the patient are not prone to being injured by too large correcting force, and normal movement of the patient is not affected.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a correction traction device. Background Art

[0002] A corrective traction device is a medical device used for orthopedic correction. Depending on the area being corrected, these devices can be categorized as spinal, limb, and pelvic correction devices. Leg correction devices apply appropriate traction to the legs, stretching muscles and ligaments, correcting skeletal deformities, and relieving leg pressure. They are commonly used for reducing leg fractures, joint dislocations, correcting leg deformities, and relieving leg muscle tension and pain.

[0003] In the existing technology, traditional methods of correcting leg curvature usually rely on fixed brackets and bandages to directly apply pressure. However, the fixed bracket method will cause the patient's legs to be under excessive pressure and injured, while the simple straps will make the correction force insufficient, thereby reducing the correction effect.

[0004] Therefore, in view of the above problems, a correction traction device is proposed to solve the above problems. Summary of the Invention

[0005] In order to remedy the above deficiencies, the present invention provides a correction traction device, which aims to improve the problem in the prior art that a single fixed bracket or bandage may lead to poor correction effect and increase the risk of injury to the patient.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A correction and traction device comprises two steel rings, two connecting rods are fixedly connected to adjacent sides of the two steel rings, a plurality of reinforcement rods are fixedly connected to adjacent sides of the two steel rings, a correction ring is fixedly connected to the other end of the plurality of reinforcement rods, a traction mechanism is provided on the outside of the correction ring, two rotating joints are provided between the two correction rings, and an adjustment mechanism is provided between the two correction rings;

[0008] The traction mechanism includes a plurality of internal threaded sleeves, the internal threaded sleeves are rotatably connected to the outer side of the correction ring, the internal threads of the internal threaded sleeves are connected to a top screw, the inner side threads of the top screws are connected to the inside of the correction ring, and the adjacent ends of the plurality of top screws are rotatably connected to an extrusion ring, the outer wall of the connecting rod is fixedly connected to two fixing rings, the outer wall of the outer fixing ring is fixedly connected to a transmission assembly, and a stretching assembly is provided between the two fixing rings;

[0009] As a further description of the above technical solution:

[0010] The bottom of the fixing ring is fixedly connected to the outer sides of the two connecting rods, and the top of the fixing ring is fixedly connected to the outer sides of the plurality of reinforcing rods;

[0011] As a further description of the above technical solution:

[0012] The transmission assembly includes two connecting columns, one end of each of the connecting columns is fixedly connected to the outer side of the outer fixing ring, and the other end of each of the connecting columns is fixedly connected to a fixing plate. A plurality of rotating shafts are rotatably connected to the interior of the fixing plate. The rotating shafts and the outer side of the internal threaded sleeve are fixedly connected to a synchronous wheel, and the outer sides of the two synchronous wheels are provided with a synchronous belt.

[0013] As a further description of the above technical solution:

[0014] The stretching assembly includes a winding roller, the two ends of which are rotatably connected between the two fixing rings, the middle of the winding roller is fixedly connected to an extension shaft, the outer side of the extension shaft is rotatably connected to the inner side of the fixing ring, the outer side of the winding roller is provided with a traction belt, and the other ends of the plurality of traction belts are fixedly connected to a binding belt;

[0015] As a further description of the above technical solution:

[0016] The outer end of the extension shaft is fixedly connected to a bevel gear 1, and the outer wall of the rotating shaft is fixedly connected to a bevel gear 2, and the outer side of the bevel gear 1 is meshed with the outer side of the bevel gear 2;

[0017] As a further description of the above technical solution:

[0018] The adjustment mechanism includes a connecting ring, the outer wall of which is fixedly connected to the outer wall of one of the correction rings, a buckle is detachably connected to the inner side of the connecting ring, the other end of the buckle is fixedly connected to the adjustment sleeve, and the outer wall of the other correction ring is rotatably connected to an elastic column;

[0019] As a further description of the above technical solution:

[0020] The elastic column is divided into a deformation section and a fixed section, and the outer side of the adjusting sleeve is threadedly connected to the outer side of the fixed section;

[0021] As a further description of the above technical solution:

[0022] Telescopic shafts are provided at both ends of the rotating joint, and outer ends of the two telescopic shafts are fixedly connected to adjacent sides of the two correction rings.

[0023] The present invention has the following beneficial effects:

[0024] 1. In the present invention, by forwardly rotating the internal threaded sleeve at the corresponding position, the top screw moves inward, causing the extrusion ring to bend and squeeze the bent part of the patient's leg, and then by reversely rotating the internal threaded sleeve at the symmetrical position, the rotating shaft rotates through the transmission action of the synchronous wheel and the synchronous belt, thereby driving the winding roller to reel in the traction belt through the transmission of the bevel gear 1 and the bevel gear 2, thereby performing synchronous tension correction on the patient's part to be corrected through the strap, thereby correcting the bent part of the patient's leg through the synergistic action of the pressure of the extrusion ring and the tension of the strap, thereby improving the correction effect, and due to the elastic effect of the strap, the patient's leg is not easily injured by excessive correction force, and does not affect the patient's normal movement.

[0025] 2. In the present invention, the rotation of the adjustment sleeve drives the expansion and contraction of the elastic column to work together, so that the length of both ends of the device can be adjusted according to the change of the patient's leg length, and according to the needs of different patient leg bending states, the top screw is moved to the inside or outside of the correction ring by rotating the internal threaded sleeve, so that the patient's leg bending part is squeezed or relaxed by the squeezing ring, thereby achieving a correction effect, thereby achieving the effect of targeted adjustment for patients with different body characteristics and different leg parts to be corrected, thereby improving the accuracy and adaptability of the correction, effectively improving the correction effect and ensuring patient comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional schematic diagram of a correction and traction device proposed by the present invention;

[0027] Figure 2 This is a structural diagram of a steel ring of a correction and traction device proposed by the present invention;

[0028] Figure 3 This is a schematic structural diagram of an adjustment mechanism of a correction and traction device proposed by the present invention;

[0029] Figure 4 This is a structural schematic diagram of a traction mechanism of a correction traction device proposed by the present invention;

[0030] Figure 5 This is a structural schematic diagram of a synchronous wheel of a correction traction device proposed by the present invention;

[0031] Figure 6 This is a schematic structural diagram of a rotating shaft of a correction and traction device proposed by the present invention;

[0032] Figure 7 This is a schematic structural diagram of a strap for a correction and traction device proposed by the present invention;

[0033] Figure 8 This is a structural schematic diagram of a fixing plate of a correction and traction device proposed by the present invention.

[0034] Legend:

[0035] 1. Steel ring; 2. Connecting rod; 3. Reinforcement rod; 4. Correction ring; 5. Traction mechanism; 501. Internal threaded sleeve; 502. Top screw; 503. Extrusion ring; 504. Synchronous belt; 505. Fixed ring; 506. Connecting column; 507. Fixed plate; 508. Rotating shaft; 509. Synchronous wheel; 510. Winding roller; 511. Extension shaft; 512. Bevel gear 1; 513. Bevel gear 2; 514. Traction belt; 515. Binding strap; 6. Rotating joint; 7. Adjustment mechanism; 701. Connecting ring; 702. Buckle; 703. Adjustment sleeve; 704. Elastic column. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Reference Figures 1 to 8 The present invention provides an embodiment: a corrective traction device, comprising two steel rings 1, which are used to be placed on both ends of the patient's legs (such as the thigh and calf), serving as the basic fixing components of the entire device. By passing the patient's legs through the steel rings 1 and fixing them, the initial positioning of the device and the legs is achieved. Two connecting rods 2 are fixedly connected to the adjacent sides of the two steel rings 1, and multiple reinforcement rods 3 are fixedly connected to the adjacent sides of the two steel rings 1. The connecting rods 2 and the reinforcement rods 3 together constitute a support frame. The connecting rods 2 connect the steel rings 1 and the correction ring 4, and the reinforcement rods 3 enhance the connection stability between the steel rings 1 and the correction ring 4 to prevent the device from deforming during the correction process. The other ends of the multiple reinforcement rods 3 are fixedly connected to a correction ring 4. A traction mechanism 5 is provided on the outside of the correction ring 4. Two rotating joints 6 are provided between the two correction rings 4. The two ends of the rotating joints 6 are provided with telescopic shafts. The outer ends of the two telescopic shafts are fixedly connected to the adjacent sides of the two correction rings 4. The rotating joints 6 and the telescopic shafts cooperate to form the length adjustment structure of the device. The rotating joints 6 allow the telescopic shafts to rotate within a certain range. The extension and retraction of the telescopic shafts can change the distance between the two correction rings 4 to accommodate the length differences of different patients' legs. An adjustment mechanism 7 is provided between the two correction rings 4.

[0038] The traction mechanism 5 includes a plurality of internal threaded sleeves 501, which are rotatably connected to the outside of the correction ring 4. The internal threads of the internal threaded sleeves 501 are connected to a top screw 502. The internal threaded sleeves 501 cooperate with the top screw 502 through threads. When the internal threaded sleeves 501 are rotated, the top screw 502 can move in the radial direction of the correction ring 4 (inward or outward), thereby pushing or pulling the extrusion ring 503, so that it applies pressure to or releases pressure on the bent part of the leg. The inner side threads of the top screw 502 are connected to the inside of the correction ring 4. The adjacent ends of the plurality of top screws 502 are rotatably connected to the extrusion ring 503. The extrusion ring 503 is an annular elastic component, which is rotatably connected to the plurality of top screws 502. It can be locally bent under the push of the top screw 502, fit the bent part of the leg and apply targeted extrusion correction force. Its flexible design avoids causing hard damage to the leg. Two fixing rings 505 are fixedly connected to the outer wall of the connecting rod 2, the bottom of the fixing ring 505 is fixedly connected to the outside of the two connecting rods 2, the top of the fixing ring 505 is fixedly connected to the outside of multiple reinforcement rods 3, the outer wall of the outer fixing ring 505 is fixedly connected to the transmission assembly, and a stretching assembly is arranged between the two fixing rings 505.

[0039] The transmission assembly includes two connecting columns 506, one end of which is fixedly connected to the outside of the outer fixing ring 505, and the other end of which is fixedly connected to a fixing plate 507. The connecting columns 506 and the fixing plate 507 constitute the support structure of the transmission assembly, fixing the rotating shaft 508 and the synchronous wheel 509 to the outside of the correction ring 4. The fixing plate 507 is internally connected to multiple rotating shafts 508 for rotation. The rotating shafts 508 are fixedly connected to the outside of the internally threaded sleeve 501 with synchronous wheels 509. The outer sides of the two synchronous wheels 509 are equipped with synchronous belts 504. When the internally threaded sleeve 501 rotates, it drives the synchronous wheels 509 on its outer side to rotate, and the synchronous belt 504 transmits power to the rotating shafts 508, ensuring that the rotation of the internally threaded sleeve 501 is synchronously transmitted to the corresponding stretching assembly.

[0040] The stretching assembly includes a winding roller 510, whose ends are rotatably connected between two fixed rings 505. The winding roller 510 is used to retract and extend traction straps 514. Traction straps 514 are sleeved around the outside of the winding roller 510, and the other ends of multiple traction straps 514 are fixedly connected to binding straps 515. When the winding roller 510 is retracted, the binding straps 515 apply tension to the bend of the leg, creating a synergistic corrective force with the pressure from the compression ring 503. The elastic properties of the binding straps 515 also buffer the corrective force, preventing injury to the patient's leg due to excessive force. An extension shaft 511 is fixedly connected to the middle of the winding roller 510, and the outer side of the extension shaft 511 is rotatably connected to the inside of the fixed ring 505. The outer end of the extension shaft 511 is fixedly connected to bevel gear 1 512, and the outer wall of the rotating shaft 508 is fixedly connected to bevel gear 2 513. The outer side of bevel gear 1 512 is meshed with the outer side of bevel gear 2 513. When the rotating shaft 508 rotates, bevel gear 2 513 drives bevel gear 1 512 and the winding roller 510 to rotate, thereby realizing the winding or loosening of the traction belt 514.

[0041] The adjustment mechanism 7 includes a connecting ring 701, the outer wall of which is fixedly connected to the outer wall of one of the correction rings 4. The inner side of the connecting ring 701 is detachably connected to a buckle 702, the other end of the buckle 702 is fixedly connected to an adjustment sleeve 703, and the outer wall of the other correction ring 4 is rotatably connected to an elastic column 704. The elastic column 704 is divided into a deformation section and a fixed section. The outer side of the adjustment sleeve 703 is threadedly connected to the outer side of the fixed section. When the adjustment sleeve 703 is rotated, the deformation section can be pushed to expand and contract within the fixed section, thereby changing the distance between the two correction rings 4 to adapt to the leg posture characteristics of different patients. In addition, the deformation section of the elastic column 704 has elastic deformation ability, which provides buffering when adjusting the length, while allowing the rotating joint 6 to move within a certain range, ensuring the tracking performance of the device when the patient's leg moves.

[0042] Working principle: When in use, first rotate the adjustment sleeve 703 according to the patient's leg posture characteristics. The rotation of the adjustment sleeve 703 drives the elastic column 704 to expand and contract in the adjustment sleeve 703, and at the same time adjusts the length of the two ends of the rotating joint 6, thereby adjusting the overall length of the entire corrective traction device, and then the patient's legs are passed through the two steel rings 1 for fixation.

[0043] Observe the bending state and degree of the patient's leg, rotate the internal threaded sleeve 501 at the corresponding angle position according to the bending state, and the rotation of the internal threaded sleeve 501 drives the top screw 502 to move toward the inside of the correction ring 4, thereby transmitting the top screw 502 to the extrusion ring 503 through the extrusion of the top screw 502. At the same time, the internal threaded sleeve 501 at the symmetrical position is rotated in the opposite direction, so that the top screw 502 at the symmetrical position moves outward, thereby bending the corresponding position of the extrusion ring 503 and squeezing and correcting the bent part of the patient's leg, and the rotation of the internal threaded sleeve 501 drives the synchronous wheel 509 to rotate, thereby rotating the rotating shaft 508 through the transmission action of the synchronous belt 504. When the rotating shaft 508 rotates, the bevel gear 2 513 rotates to correct the The bevel gear 1 512 at the weighing position rotates in the opposite direction, and the rotation of the bevel gear 1 512 and the transmission action of the extension shaft 511 drive the winding roller 510 at the symmetrical position to rotate in the opposite direction, so that the winding roller 510 on the squeezed side loosens the traction belt 514, while the winding roller 510 at the symmetrical position rewinds the traction belt 514, thereby pulling the strap 515, so that the strap 515 provides a certain pulling force to the bent part of the patient's leg, thereby correcting the bent part of the patient's leg through the synergistic action of the pressure of the squeezing ring 503 and the pulling force of the strap 515, and due to the elastic effect of the strap 515, the patient's leg is not easily injured by excessive correction force, and the normal movement of the patient is not affected.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A correction traction device comprising two steel rings (1), characterized in that: Two connecting rods (2) are fixedly connected to the adjacent sides of the two steel rings (1), a plurality of reinforcing rods (3) are fixedly connected to the adjacent sides of the two steel rings (1), the other ends of the plurality of reinforcing rods (3) are fixedly connected to a correction ring (4), a traction mechanism (5) is provided on the outside of the correction ring (4), two rotating joints (6) are provided between the two correction rings (4), and an adjustment mechanism (7) is provided between the two correction rings (4); The traction mechanism (5) comprises a plurality of internal threaded sleeves (501), the internal threaded sleeves (501) are rotatably connected to the outside of the correction ring (4), the internal threads of the internal threaded sleeves (501) are connected to a top screw (502), the inner threads of the top screw (502) are connected to the inside of the correction ring (4), and the adjacent ends of the plurality of top screws (502) are rotatably connected to an extrusion ring (503), the outer wall of the connecting rod (2) is fixedly connected to two fixing rings (505), the outer wall of the outer fixing ring (505) is fixedly connected to a transmission assembly, and a stretching assembly is provided between the two fixing rings (505).

2. A correction and traction device according to claim 1, characterized in that: The bottom of the fixing ring (505) is fixedly connected to the outside of the two connecting rods (2), and the top of the fixing ring (505) is fixedly connected to the outside of the plurality of reinforcing rods (3).

3. The correction and traction device according to claim 1, characterized in that: The transmission assembly includes two connecting columns (506), one end of the two connecting columns (506) is fixedly connected to the outside of the outer fixing ring (505), the other end of the two connecting columns (506) is fixedly connected to a fixing plate (507), the interior of the fixing plate (507) is rotatably connected to a plurality of rotating shafts (508), the rotating shafts (508) are fixedly connected to the outside of the internal threaded sleeve (501) with a synchronous wheel (509), and the outer sides of the two synchronous wheels (509) are provided with a synchronous belt (504).

4. A correction and traction device according to claim 3, characterized in that: The stretching assembly includes a winding roller (510), the two ends of the winding roller (510) are rotatably connected between the two fixed rings (505), the middle of the winding roller (510) is fixedly connected to an extension shaft (511), the outer side of the extension shaft (511) is rotatably connected to the inside of the fixed ring (505), the outer side of the winding roller (510) is provided with a traction belt (514), and the other ends of multiple traction belts (514) are fixedly connected to a binding belt (515).

5. The correction and traction device according to claim 4, characterized in that: The outer end of the extension shaft (511) is fixedly connected to a bevel gear 1 (512), the outer wall of the rotating shaft (508) is fixedly connected to a bevel gear 2 (513), and the outer side of the bevel gear 1 (512) is meshed with the outer side of the bevel gear 2 (513).

6. The correction and traction device according to claim 1, characterized in that: The adjustment mechanism (7) comprises a connecting ring (701), the outer wall of which is fixedly connected to the outer wall of one of the correction rings (4), a buckle (702) being detachably connected to the inner side of the connecting ring (701), an adjustment sleeve (703) being fixedly connected to the other end of the buckle (702), and an elastic column (704) being rotatably connected to the outer wall of the other correction ring (4).

7. The correction and traction device according to claim 6, characterized in that: The elastic column (704) is divided into a deformation section and a fixed section, and the outer side of the adjustment sleeve (703) is threadedly connected to the outer side of the fixed section.

8. The correction and traction device according to claim 1, characterized in that: Telescopic shafts are provided at both ends of the rotating joint (6), and the outer ends of the two telescopic shafts are fixedly connected to adjacent sides of the two correction rings (4).

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