Gantry thoracolumbar fracture reduction device

The gantry-type thoracolumbar fracture reduction device, using components such as an electric hoist and a sliding motor, achieves efficient and precise reduction for patients with thoracolumbar fractures. This solves the problems of complex operation and large trauma in existing technologies, and improves the success rate of reduction and patient comfort.

CN224925270UActive Publication Date: 2026-11-03SHANGHAI SIXTH PEOPLES HOSPITAL
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Patent Information

Application Number
CN202521124277.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-03
Publication Date
2026-11-03
Estimated Expiration
2035-06-03

AI Technical Summary

Technical Problem

Existing methods for reducing thoracic and lumbar vertebral fractures are complex to operate, difficult to achieve precise reduction, highly invasive, and cannot meet the needs of complex fractures.

Method used

The gantry-type thoracic and lumbar vertebral fracture reduction device, which includes a gantry, lifting device and fixation device, uses components such as electric hoist, rotating motor, sliding motor and hydraulic telescopic rod to achieve efficient and precise reduction of the patient's fracture.

Benefits of technology

It enables efficient and precise repositioning operations, reduces manpower requirements, lowers the risk of trauma, improves the success rate of repositioning and patient comfort, and adapts to different clinical scenarios and patient needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to medical instrument technical field especially relates to a portal frame type thoracolumbar fracture reduction device, include: portal frame, lift device of sliding ground setting in the upper portion of portal frame and fixing device, wherein, lift device includes: sliding device of sliding ground setting in the top of portal frame and fixedly set up electric hoist of one side of sliding device, fixing device includes: the stretchable rod of fixedly set up in the bottom of lifting cable of electric hoist, fixedly set up support rod in the bottom of stretchable rod, two rotation motor, two rotating rods and sling, wherein, stretchable rod and support rod are perpendicular to set up, two rotation motor are fixedly set up in the both sides of support rod respectively, one end of rotating rod is fixedly set up in the output end of rotation motor, and the other end of rotating rod detachably is provided with sling, the utility model is easy and simple to handle, has reduced the demand of manpower, has reduced the trauma risk, has improved the comfort degree and reduction success rate of patient.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a gantry-type thoracolumbar vertebral fracture reduction device. Background Technology

[0002] In the clinical treatment of thoracolumbar fractures, reduction is one of the key steps. However, existing reduction methods have many limitations. Traditional hyperextension reduction requires 3-4 people to operate together, with an average force deviation of 35%, making it difficult to achieve precise reduction. Although pedicle screw traction reduction during surgery can provide some support, it requires incision and exposure, which damages the paravertebral muscles and fascia, increasing patient trauma and postoperative recovery difficulty. Although the carbon fiber operating table traction system is relatively easy to operate, the maximum traction force is only 120 kg / cm, and it cannot achieve three-dimensional coupling force application, making it difficult to meet the reduction requirements of complex fractures.

[0003] Furthermore, manual reduction methods struggle to maintain precise force over extended periods, and operator fatigue or experience can easily lead to unsatisfactory reduction outcomes. These technical challenges highlight the urgent clinical need for more efficient, precise, and minimally invasive reduction devices.

[0004] Therefore, in order to solve the above problems, this utility model provides a gantry-type thoracolumbar fracture reduction device, which provides a better treatment option for patients with thoracolumbar fractures and helps to improve the reduction success rate. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of the existing technology by providing a gantry-type thoracolumbar vertebral fracture reduction device. To achieve the above objectives, the technical solution adopted by the present invention is as follows: A gantry-type thoracolumbar fracture reduction device includes: a gantry frame, a lifting device slidably disposed on the upper part of the gantry frame, and a fixation device; The lifting device includes: a sliding device slidably mounted on the top of the gantry frame, and an electric hoist fixedly mounted on one side of the sliding device; the fixing device includes: a tension rod fixedly mounted on the bottom of the lifting cable of the electric hoist, a support rod fixedly mounted on the bottom of the tension rod, two rotating motors, two rotating rods, and a sling. The tension rod is perpendicular to the support rod, two rotating motors are fixedly mounted on both sides of the support rod, one end of the rotating rod is fixedly mounted on the output end of the rotating motor, and the other end of the rotating rod is detachably equipped with a sling. The support rod has a first connecting ring fixedly installed at its bottom, and the end of the sling away from the rotating rod is detachably connected to the first connecting ring via a connecting rope.

[0006] Furthermore, the gantry-type thoracolumbar fracture reduction device includes: a crossbeam and two supports respectively fixedly installed on both sides of the crossbeam; The front wall, top wall, and rear wall of the crossbeam are all fixedly provided with sliding rails along the length of the crossbeam, and the sliding device is slidably set on the sliding rails.

[0007] Furthermore, the sliding device includes: a rack fixedly disposed on the top of the crossbeam, a sliding plate, and a sliding motor fixedly disposed on the top of the sliding plate; The sliding plate has an inverted concave cross-section with its opening facing downwards and is fitted onto the outer surface of the crossbeam. The bottom of the sliding plate is provided with a sliding component that cooperates with the sliding track. The sliding component is slidably set on the outer surface of the sliding track. The output end of the sliding motor is connected to a reducer, and the output end of the reducer meshes with the teeth of the rack.

[0008] Furthermore, a groove is provided at the top of the sliding track, and a pulley group is connected to the bottom of the sliding component through a pivot, with the pulley group slidably disposed in the groove.

[0009] Furthermore, both supports include: a column, a first inclined column fixedly disposed on the front side of the column, a second inclined column fixedly disposed on the rear side of the column, and a hydraulic telescopic rod fixedly disposed on the top of the column; The output end of the hydraulic telescopic rod is fixedly located on one side of the crossbeam; a support beam is fixedly located between the first and second inclined columns; and casters are fixedly located at the bottom of the first and second inclined columns.

[0010] Furthermore, a control panel is fixedly installed on one side of the column, and the electric hoist, rotary motor, sliding motor, hydraulic telescopic rod, and power supply are electrically connected to the control panel.

[0011] Furthermore, the control panel includes a display screen, control buttons, and an alarm device.

[0012] Furthermore, the gantry-type thoracolumbar fracture reduction device includes: a fixation strap fixedly installed on one side of the sling.

[0013] The present invention adopts the above technical solution and has the following technical effects compared with the prior art: This invention achieves efficient and precise reduction of thoracic and lumbar vertebral fractures through the structure of the gantry frame, the adjustability of the lifting device, and the flexible fixation method of the fixation device. This invention is easy to operate, reduces manpower requirements, lowers the risk of trauma, and improves patient comfort and reduction success rate. In addition, its height adjustment and mobility flexibility allow it to adapt to different clinical scenarios and patient needs, making it widely applicable in the clinical treatment of thoracic and lumbar vertebral fractures and providing a better option for patient rehabilitation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the axial side structure of this utility model; Figure 2 This is a schematic diagram of the fixing device structure in this utility model; Figure 3 This is an enlarged view of the structure of region A in this utility model; The reference numerals in the attached figures are: 1. Gantry frame; 2. Lifting device; 3. Fixing device; 21. Sliding device; 22. Electric hoist; 31. Tension rod; 32. Support rod; 33. Rotary motor; 34. Rotating rod; 35. Lifting strap; 351. Connecting rope; 36. First connecting ring; 11. Crossbeam; 12. Bracket; 111. Sliding rail; 211. Rack; 212. Sliding plate; 213. Sliding motor; 2121. Sliding component; 2131. Reducer; 121. Column; 122. First inclined column; 123. Second inclined column; 124. Hydraulic telescopic rod; 125. Control panel; 126. Casters; 127. Support beam; 352. Fixing strap. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0018] Example

[0019] To achieve the above objectives, the technical solution adopted by the present invention in this embodiment is as follows: This embodiment of a gantry-type thoracolumbar fracture reduction device includes: a gantry 1, a lifting device 2, and a fixing device 3; wherein, the lifting device 2 is slidably disposed on the upper part of the gantry 1, and the fixing device 3 is fixedly disposed on one side of the lifting device 2; the gantry 1 provides a stable support foundation for the entire device, ensuring the stability and safety of the patient's body during the reduction process; the lifting device 2 can be adjusted in height according to the reduction needs; and the fixing device 3 is used to fix the patient's body, ensuring the accurate implementation of the reduction operation.

[0020] The gantry frame 1 includes a crossbeam 11 and two supports 12 fixedly mounted on both sides of the crossbeam 11. Sliding rails 111 are fixedly mounted on the front wall, top wall, and rear wall of the crossbeam 11 along the length of the crossbeam 11. The sliding device 21 is slidably mounted on the sliding rails 111. As the main load-bearing component of the gantry frame 1, the crossbeam 11 provides a stable sliding path for the sliding device 21 through the sliding rails 111, ensuring the smooth vertical movement of the lifting device 2 and thus ensuring the stability of the patient's body during the reduction process. The supports 12 are used to support the crossbeam 11 and provide stability to the entire device. The stability of the structure is crucial for the normal operation of the entire reduction device.

[0021] The lifting device 2 includes a sliding device 21 and an electric hoist 22 fixedly mounted on one side of the sliding device 21. The sliding device 21 includes a rack 211 fixedly mounted on the top of the crossbeam 11, a sliding plate 212, and a sliding motor 213 fixedly mounted on the top of the sliding plate 212. The sliding plate 212 has an inverted concave cross-section, with its opening facing downwards, and is fitted onto the outer surface of the crossbeam 11. The bottom of the sliding plate 212 is provided with a sliding element 2121 that cooperates with the sliding rail 111. The output end of the sliding motor 213 is connected to a reducer 213. 1. The output end of the reducer 2131 meshes with the teeth of the rack 211; the meshing relationship between the rack 211 and the reducer 2131, as well as the driving action of the sliding motor 213, enables the sliding device 21 to move smoothly on the sliding track 111, thereby driving the electric hoist 22 and the fixing device 3 below it to achieve precise height adjustment, meeting the differences in height and reduction needs of different patients. The electric hoist 22 provides strong lifting power to ensure that the patient's body can be safely lifted to the required height, creating good mechanical conditions for the reduction of thoracic and lumbar vertebral fracture sites.

[0022] The fixing device 3 includes a tension rod 31 fixedly mounted at the bottom of the lifting cable of the electric hoist 22, a support rod 32 fixedly mounted at the bottom of the tension rod 31, two rotating motors 33, two rotating rods 34, and a sling 35. The tension rod 31 is perpendicular to the support rod 32. The two rotating motors 33 are fixedly mounted on both sides of the support rod 32. One end of the rotating rod 34 is fixedly mounted at the output end of the rotating motor 33, and the other end of the rotating rod 34 is detachably mounted with the sling 35. The vertical arrangement of the tension rod 31 and the support rod 32 provides a stable support structure for the sling 35, ensuring the stability of the patient's body in the suspended state. The cooperation of the rotating motors 33 and the rotating rods 34 can realize the angle adjustment of the sling 35 and the patient's body, simulating human physiological movement, so that the fracture site of the thoracic and lumbar vertebrae can be reduced in multiple directions, improving the reduction effect. The sling 35 is used to fix the patient's body. Its detachable design makes it easy to adjust and replace according to the patient's body shape and condition, ensuring the patient's comfort and safety during the reduction process.

[0023] A first connecting ring 36 is fixedly provided at the bottom of the support rod 32. The end of the sling 35 away from the rotating rod 34 is detachably connected to the first connecting ring 36 through a connecting rope 351. The first connecting ring 36 and the connecting rope 351 provide a flexible connection method for the sling 35, which facilitates quick adjustment of the position and angle of the sling 35 during the reset process, thereby improving the ease of use and adaptability of the device.

[0024] Furthermore, a groove is provided at the top of the sliding track 111, and a pulley group is connected to the bottom of the sliding member 2121 through a rotating shaft. The pulley group is slidably disposed in the groove. The cooperation between the groove and the pulley group further reduces the friction between the sliding member 2121 and the sliding track 111, making the movement of the sliding device 21 smoother, improving the operating efficiency and stability of the device, reducing the wear of mechanical parts, and extending the service life of the device.

[0025] Furthermore, each of the two supports 12 includes a column 121, a first inclined column 122 fixedly disposed on the front side of the column 121, a second inclined column 123 fixedly disposed on the rear side of the column 121, and a hydraulic telescopic rod 124 fixedly disposed on the top of the column 121; the output end of the hydraulic telescopic rod 124 is fixedly disposed on one side of the crossbeam 11; a support beam 127 is fixedly disposed between the first inclined column 122 and the second inclined column 123. The bottom of the support frame 12 is fixedly equipped with casters 126; the upright column 121, the first inclined column 122 and the second inclined column 123 together form a stable structure of the support frame 12, which improves the overall stability of the gantry frame 1. The hydraulic telescopic rod 124 makes the height of the crossbeam 11 adjustable, which can adapt to the needs of different clinical scenarios and patient positions. The support beam 127 further enhances the structural strength of the support frame 12, and the casters 126 facilitate the overall movement and positioning of the device, improving the flexibility and convenience of the device.

[0026] Furthermore, a control panel 125 is fixedly installed on one side of the column 121. The electric hoist 22, the rotating motor 33, the sliding motor 213, and the hydraulic telescopic rod 124 are electrically connected to the control panel 125. The control panel 125 centrally controls each power component, enabling medical personnel to operate the device conveniently and quickly, and to achieve precise control over functions such as lifting height, angle adjustment, and sliding position. This improves the efficiency and accuracy of the repositioning operation, reduces the difficulty of operation, and ensures the safety and effectiveness of the repositioning process.

[0027] Furthermore, the control panel 125 includes a display screen, control buttons, and an alarm device. The display screen is used to show the real-time operating status and related parameters of the device, such as the pulling force of the electric hoist 22, the position of the sliding motor 213, and the angle of the rotating motor 33, providing medical staff with intuitive monitoring information. The control buttons facilitate the input and adjustment of various operating instructions by medical staff. The alarm device will issue an alarm in a timely manner when abnormal situations occur, reminding medical staff to take appropriate measures to ensure the safety of patients, and further improving the reliability and intelligence level of the device.

[0028] Furthermore, a fixing strap 352 is fixedly provided on one side of the sling 35; the fixing strap 352 is provided to enhance the fixation effect on the patient's body, prevent the patient from moving during the repositioning process, thus affecting the repositioning effect or causing secondary damage, ensure the stability of the patient in the suspended state, and can be appropriately adjusted according to the patient's body shape and comfort to improve the patient's user experience.

[0029] When using the device, first place it on a flat, stable surface, ensuring the casters 126 are locked to provide a stable support base. Connect the power supply and turn on the control panel 125. Check whether the power components, such as the electric hoist 22, rotating motor 33, sliding motor 213, and hydraulic telescopic rod 124, are operating normally, and whether the display screen, control buttons, and alarm devices are functioning properly. If necessary, control the sliding motor 213 to drive the sliding device 21 to move along the sliding track 111, and adjust the left and right positions of the sling 35 on the gantry 1 to place the patient in the optimal reduction position. The patient is then carefully transferred into the sling 35. The positions of the sling 35 and the fixing strap 352 are adjusted to ensure the patient's body is stably fixed while avoiding excessive restraint that could cause discomfort. Based on the patient's height and the reduction requirements, the height of the hydraulic telescopic rod 124 is adjusted via the control panel 125 to position the crossbeam 11 appropriately. The electric hoist 22 is activated, causing the sling 35 to slowly rise, lifting the patient's body to the appropriate height. Simultaneously, the rotating rod 34 is driven by the rotating motor 33 to rotate, thereby adjusting the angle between the sling 35 and the patient's body, simulating physiological human movement to reduce the fracture of the thoracic and lumbar vertebrae. Medical staff can monitor various data during the reduction process in real time via the display screen of the control panel 125, such as the height and angle of the sling 35, and the tension of the electric hoist 22. Based on the patient's physical condition and feedback, the reduction parameters can be adjusted promptly via the control buttons to ensure a safe and effective reduction process. If any abnormality occurs, the alarm device will sound an alarm to remind medical staff to take appropriate measures. Once the thoracic and lumbar vertebral fractures have achieved the desired reduction, the electric hoist 22 is used to slowly lower the sling 35, smoothly transferring the patient to a hospital bed or rehabilitation equipment. The device is then cleaned and maintained to prepare for future use.

[0030] In summary, this invention achieves efficient and precise reduction of thoracic and lumbar vertebral fractures through the structure of the gantry frame, the adjustability of the lifting device, and the flexible fixation method of the fixation device. This invention is easy to operate, reduces manpower requirements, lowers the risk of trauma, and improves patient comfort and reduction success rate. Furthermore, its height adjustment and mobility flexibility allow it to adapt to different clinical scenarios and patient needs, making it widely applicable in the clinical treatment of thoracic and lumbar vertebral fractures and providing a better option for patient rehabilitation.

[0031] The above description of this utility model is merely a preferred embodiment of this utility model and does not limit the implementation method and protection scope of this utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of this utility model should be included within the protection scope of this utility model.

Claims

1. A gantry-type thoracolumbar vertebral fracture reduction device, characterized in that, include: Gantry (1), lifting device (2) slidably disposed on the upper part of the gantry (1), and fixing device (3); The lifting device (2) includes: a sliding device (21) slidably disposed on the top of the gantry frame (1), and an electric hoist (22) fixedly disposed on one side of the sliding device (21). The fixing device (3) includes: a tension rod (31) fixedly installed at the bottom of the lifting cable of the electric hoist (22), a support rod (32) fixedly installed at the bottom of the tension rod (31), two rotating motors (33), two rotating rods (34), and a sling (35). The tension rod (31) is perpendicular to the support rod (32), the two rotating motors (33) are fixedly installed on both sides of the support rod (32), one end of the rotating rod (34) is fixedly installed at the output end of the rotating motor (33), and the other end of the rotating rod (34) is detachably provided with a sling (35). The support rod (32) has a first connecting ring (36) fixedly provided at its bottom, and the end of the sling (35) away from the rotating rod (34) is detachably connected to the first connecting ring (36) by a connecting rope (351).

2. The gantry-type thoracolumbar vertebral fracture reduction device according to claim 1, characterized in that, The gantry frame (1) includes: a crossbeam (11) and two supports (12) fixedly disposed on both sides of the crossbeam (11); The front side wall, the top wall, and the rear side wall of the crossbeam (11) are all fixedly provided with sliding rails (111) along the length of the crossbeam (11), and the sliding device (21) is slidably disposed on the sliding rails (111).

3. The gantry-type thoracolumbar vertebral fracture reduction device according to claim 2, characterized in that, The sliding device (21) includes: a rack (211) fixedly disposed on the top of the crossbeam (11), a sliding plate (212), and a sliding motor (213) fixedly disposed on the top of the sliding plate (212). The sliding plate (212) has an inverted concave cross-section and is fitted onto the outer surface of the crossbeam (11) with its opening facing downward. The bottom of the sliding plate (212) is provided with a sliding member (2121) that cooperates with the sliding track (111). The sliding member (2121) is slidably disposed on the outer surface of the sliding track (111). The output end of the sliding motor (213) is connected to a reducer (2131), and the output end of the reducer (2131) meshes with the teeth of the rack (211).

4. The gantry-type thoracolumbar vertebral fracture reduction device according to claim 3, characterized in that, The top of the sliding track (111) is provided with a sliding groove, and the bottom of the sliding member (2121) is connected to a pulley group through a rotating shaft. The pulley group is slidably disposed in the sliding groove.

5. A gantry-type thoracolumbar vertebral fracture reduction device according to claim 3, characterized in that, Both of the brackets (12) include: a column (121), a first inclined column (122) fixedly disposed on the front side of the column (121), a second inclined column (123) fixedly disposed on the rear side of the column (121), and a hydraulic telescopic rod (124) fixedly disposed on the top of the column (121). The output end of the hydraulic telescopic rod (124) is fixedly disposed on one side of the crossbeam (11); A support beam (127) is fixedly provided between the first inclined column (122) and the second inclined column (123), and casters (126) are fixedly provided at the bottom of the first inclined column (122) and the second inclined column (123).

6. A gantry-type thoracolumbar vertebral fracture reduction device according to claim 5, characterized in that, A control panel (125) is fixedly installed on one side of the column (121). The electric hoist (22), the rotating motor (33), the sliding motor (213), the hydraulic telescopic rod (124), and the power supply are electrically connected to the control panel (125).

7. A gantry-type thoracolumbar vertebral fracture reduction device according to claim 6, characterized in that, The control panel (125) includes: a display screen, control buttons, and an alarm device.

8. A gantry-type thoracolumbar vertebral fracture reduction device according to claim 1, characterized in that, A fixing strap (352) is fixedly provided on one side of the sling (35).