Orthopedic clinical hip joint reduction fixator

Abstract

The present application relates to the technical field of medical treatment. Specifically disclosed is an orthopedic clinical hip joint reduction fixator, comprising a torso fixation sleeve and a thigh fixation sleeve, wherein the torso fixation sleeve and the thigh fixation sleeve are rotatably connected to each other via a lateral hip rotary joint; the torso fixation sleeve and the thigh fixation sleeve each comprise a pair of side support plates having an arc-shaped plate structure; a pair of rigid insertion strips are fixedly connected to each of the front and rear ends of the side support plate on the left side; a pair of rigid sockets are fixedly connected to each of the front and rear ends of the side support plate on the right side; the rigid insertion strips are in plug-in fit with the rigid sockets; each rigid insertion strip is provided with forward teeth equidistantly arranged on the outer side wall thereof; a serrated plate is slidably mounted inside each rigid socket, and is provided with reverse teeth equidistantly arranged on the inner side wall thereof; springs are connected between the outer side walls of the serrated plates and the inner side walls of the rigid sockets; and a pair of serrated plates on the same side are connected to a vertical plate arranged on the outer sides of the rigid sockets by means of connecting plates. The present application shortens the manufacturing cycle and is simple to take on and off.

Description

A clinical hip reduction and fixation device for orthopedic use Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an orthopedic clinical hip joint reduction and fixation device. Background Technology

[0002] Hip fixation devices (hip immobilizers) are a class of medical devices primarily used to support and stabilize the hip joint, typically during surgery or other treatments to maintain joint stability. The main function of hip fixators is to maintain hip stability and prevent hip joint displacement and rotation. They can be used for fixation after sacroiliac joint dislocation reduction, postpartum pelvic restoration fixation in women, and for fracture fixation, traction, and counteracting muscle tension. In fracture and paraplegia treatment, hip fixators provide support and stability, helping to promote fracture healing and restore neurological function.

[0003] When wearing a hip fixation device, the limb must be cleaned and dried beforehand to ensure the device is the correct size and tightness, thus avoiding pressure or discomfort on the limb. Therefore, most existing hip joint reduction and fixation devices require personalized customization, resulting in long manufacturing cycles and high usage costs. Thus, there is an urgent need for a new type of hip joint reduction and fixation device that provides an effective solution to the shortcomings of existing technologies. Summary of the Invention

[0004] The purpose of this invention is to provide an orthopedic clinical hip joint reduction and fixation device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A hip joint reduction and fixation device for orthopedic clinical use includes a trunk fixation sleeve and a thigh fixation sleeve, which are rotatably connected via an external hip rotation joint. The trunk fixation sleeve and thigh fixation sleeve include a pair of arc-shaped plate-like side support plates. A pair of rigid inserts are fixedly connected to the front and rear ends of the left side support plate, and a pair of rigid sockets are fixedly connected to the front and rear ends of the right side support plate. The rigid inserts and rigid sockets are interlocked. The outer side wall of the rigid inserts has equidistant forward teeth. A toothed plate is slidably installed inside the rigid socket. The inner side wall of the toothed plate has equidistant reverse teeth. A spring connects the outer side wall of the toothed plate to the inner side wall of the rigid socket. A pair of toothed plates on the same side are connected to a vertical plate located outside the rigid socket via a connecting plate.

[0007] Furthermore, the hip external rotation joint includes an upper abduction bar and a lower abduction bar. The upper abduction bar is fixedly connected to a side support plate on the trunk fixation sleeve, and the lower abduction bar is fixedly connected to a side support plate on the thigh fixation sleeve. A disc base is provided at the end of the upper abduction bar away from the side support plate, and a turntable is provided at the end of the lower abduction bar away from the side support plate. The turntable is rotatably connected to the disc base.

[0008] Furthermore, the upper and lower outward extension strips are provided with connecting strips, which are detachably and fixedly connected to the side support plate. The side support plate is provided with a pair of threaded holes and a pair of through holes, through which screws are threaded and connected to the threaded holes.

[0009] Furthermore, an arc-shaped strip is provided on the outer side of the right-side side support plate, and wedge-shaped seats are provided at both ends of the arc-shaped strip. The wedge-shaped seats are located on the inner side of the vertical plate, and a screw head is provided on the outer wall of the middle part of the arc-shaped strip.

[0010] Furthermore, the rigid insert is provided with reinforcing ribs at both the upper and lower parts.

[0011] Furthermore, the end of the rigid insert is provided with a pointed tip.

[0012] Furthermore, guide rails are installed on the upper and lower inner walls of the rigid socket, and ball bearings are placed inside the guide rails.

[0013] Furthermore, ventilation holes are provided on the side support plate.

[0014] Furthermore, a buffer pad is connected to the inner wall of the side support plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention utilizes the interlocking of rigid inserts and sockets, along with an adjustment mechanism involving a toothed plate and springs, to achieve personalized size adjustments to meet the needs of different patients. The arc-shaped plate-like side support and the design of the external hip rotation joint allow the fixator to better conform to the patient's body, providing greater stability and preventing hip joint displacement and rotation. Compared to traditional personalized custom fixators, this fixator allows for size changes through simple interlocking and adjustment, significantly shortening the manufacturing cycle and improving efficiency. Because it eliminates the need for complex customization, the manufacturing cost of this fixator is relatively low, reducing the financial burden on patients.

[0017] In this invention, the hip external rotation joint is rotatably connected to the plate seat via a turntable, which can simulate the natural movement of the hip joint, provide a comfortable movement space, and at the same time ensure the stability and safety of the hip joint during the rehabilitation process.

[0018] In this invention, the detachable and fixed connection between the connecting strip and the side support plate facilitates the cleaning, maintenance, and replacement of the hip joint reduction and fixation device, improving its ease of use and flexibility.

[0019] In this invention, pulling the screw head outward causes the arc-shaped strip to press the wedge-shaped seat into the inner side of the vertical plate, forcing the reverse teeth to disengage from the forward teeth, making it easier to put on and take off the hip joint reduction and fixation device. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the structure of a hip joint reduction and fixation device in orthopedic clinical practice;

[0021] Figure 2 is a schematic diagram of the external rotation joint of the hip.

[0022] Figure 3 is a schematic diagram of the connection structure between the upper outward extension strip and the side support plate;

[0023] Figure 4 is a schematic diagram of the torso fixation sleeve;

[0024] Figure 5 is a cross-sectional view of the rigid insert and the rigid socket;

[0025] Figure 6 is a cross-sectional view of the rigid socket and the curved strip;

[0026] Figure 7 is a structural schematic diagram of the rigid socket and the vertical plate;

[0027] Figure 8 is a cross-sectional view of the rigid socket and the vertical plate.

[0028] In the diagram: 1. Torso fixation sleeve; 2. Thigh fixation sleeve; 3. Hip external rotation joint; 4. Upper abduction bar; 5. Lower abduction bar; 6. Disc base; 7. Turntable; 8. Connecting bar; 9. Screw; 10. Threaded hole; 11. Side support plate; 12. Vent hole; 13. Rigid insert; 14. Reinforcing rib; 15. Guide rail; 16. Pointed end; 17. Rigid socket; 18. Vertical plate; 19. Connecting plate; 20. Toothed plate; 21. Reverse tooth; 22. Forward tooth; 23. Spring; 24. Arc-shaped bar; 25. Wedge-shaped seat; 26. Tightening head. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1-8. An orthopedic clinical hip joint reduction and fixation device includes a trunk fixation sleeve 1 and a thigh fixation sleeve 2. The trunk fixation sleeve 1 and the thigh fixation sleeve 2 are rotatably connected through an external hip rotation joint 3. The trunk fixation sleeve 1 and the thigh fixation sleeve 2 include a pair of arc-shaped plate-like side support plates 11. A pair of rigid inserts 13 are fixedly connected to the front and rear ends of the left side support plate 11, and a pair of rigid sockets 17 are fixedly connected to the front and rear ends of the right side support plate 11. The rigid inserts 13 and the rigid sockets 17 are interlocked. The outer side wall of the rigid inserts 13 has equidistant forward teeth 22. A toothed plate 20 is slidably installed in the rigid socket 17. The inner side wall of the toothed plate 20 has equidistant reverse teeth 21. A spring 23 connects the outer side wall of the toothed plate 20 and the inner side wall of the rigid socket 17. The pair of toothed plates 20 on the same side are connected to a vertical plate 18 located outside the rigid socket 17 through a connecting plate 19.

[0031] The working principle of this embodiment is as follows:

[0032] The torso fixation sleeve 1 and thigh fixation sleeve 2 are worn on the patient's torso and thigh respectively, and are connected by the external hip rotation joint 3 to accommodate different patients' hip joint range of motion. Depending on the patient's body type and needs, the size of the fixator can be finely adjusted by adjusting the engagement of the rigid insert 13 on the left side plate 11 and the rigid socket 17 on the right side plate 11. When a larger size is needed, the toothed plate 20 is manually pulled outwards to disengage the reverse teeth 21 on its inner wall from the forward teeth 22 on the outer wall of the rigid insert 13. The rigid insert 13 is then inserted into the rigid socket 17 until the appropriate size is achieved. After releasing the toothed plate 20, the spring force of the spring 23 pushes the toothed plate 20 back to its original position, causing the reverse teeth 21 to re-engage with the forward teeth 22, thereby fixing the rigid insert 13 and the rigid socket 17 and fixing the size of the fixator.

[0033] Advantages of this embodiment:

[0034] Through the interlocking of rigid inserts 13 and rigid sockets 17, and the adjustment mechanism of the toothed plate 20 and spring 23, this fixator allows for personalized size adjustments to meet the needs of different patients. The design of the arc-shaped plate-like side support 11 and the external hip rotation joint 3 enables the fixator to better conform to the patient's body, providing greater stability and preventing hip joint displacement and rotation. Compared to traditional personalized custom fixators, this fixator allows for size changes through simple interlocking and adjustment, significantly shortening the manufacturing cycle and improving efficiency. Because it does not require a complex customization process, the manufacturing cost of this fixator is relatively low, reducing the financial burden on patients.

[0035] Example 2: Please refer to Figure 2. An orthopedic clinical hip joint reduction and fixation device differs from Example 1 in that the hip external rotation joint 3 includes an upper abduction bar 4 and a lower abduction bar 5. The upper abduction bar 4 is fixedly connected to the side support plate 11 on the trunk fixation sleeve 1, and the lower abduction bar 5 is fixedly connected to the side support plate 11 on the thigh fixation sleeve 2. A disc base 6 is provided at the end of the upper abduction bar 4 away from the side support plate 11, and a turntable 7 is provided at the end of the lower abduction bar 5 away from the side support plate 11. The turntable 7 is rotatably connected to the disc base 6.

[0036] In this embodiment, the external hip rotation joint 3 is rotatably connected to the plate base 6 via the turntable 7, which can simulate the natural movement of the hip joint, provide a comfortable movement space, and at the same time ensure the stability and safety of the hip joint during the rehabilitation process.

[0037] Example 3: Please refer to Figure 3. An orthopedic clinical hip joint reduction and fixation device differs from Example 1 in that the upper abduction bar 4 and the lower abduction bar 5 are provided with connecting bars 8. The connecting bars 8 are detachably fixed to the side support plate 11. The side support plate 11 is provided with a pair of threaded holes 10 and a pair of through holes. Screws 9 are inserted through the through holes and are threadedly connected to the threaded holes 10.

[0038] In this embodiment, the connecting strip 8 is detachably fixed to the side support plate 11, which facilitates the cleaning, maintenance and replacement of the hip joint reduction and fixation device, and improves the convenience and flexibility of use.

[0039] Example 4: Please refer to Figures 4-6. An orthopedic clinical hip joint reduction and fixation device is different from Example 1 in that an arc-shaped strip 24 is provided on the outer side of the right side support plate 11, and wedge-shaped seats 25 are provided at both ends of the arc-shaped strip 24. The wedge-shaped seats 25 are located on the inner side of the vertical plate 18, and a screw head 26 is provided on the outer wall of the middle part of the arc-shaped strip 24.

[0040] In this embodiment, pulling the screw head 26 outward causes the arc-shaped strip 24 to drive the wedge-shaped seat 25 to press into the inner side of the vertical plate 18, forcing the reverse tooth 21 to disengage from the forward tooth 22, making it easier to put on and take off the hip joint reduction and fixation device.

[0041] Example 5: Please refer to Figure 4. An orthopedic clinical hip joint reduction and fixation device, which differs from Example 1 in that the upper and lower parts of the rigid insert 13 are provided with reinforcing ribs 14.

[0042] In this embodiment, the reinforcing rib 14 can improve the strength and rigidity of the rigid insert 13, thereby improving the overall stability and durability of the fastener.

[0043] Example 6: Please refer to Figures 4-5. An orthopedic clinical hip joint reduction and fixation device differs from Example 1 in that the end of the rigid insert 13 is provided with a pointed tip 16.

[0044] In this embodiment, the pointed end 16 facilitates the insertion of the rigid insert 13 into the rigid socket 17.

[0045] Example 7: Please refer to Figures 7-8. An orthopedic clinical hip joint reduction and fixation device differs from Example 1 in that guide rails 15 are installed on the upper and lower inner walls of the rigid socket 17, and ball bearings are placed inside the guide rails 15.

[0046] In this embodiment, the guide rail 15 equipped with ball bearings can reduce the difficulty of inserting the rigid insert 13 into the rigid socket 17.

[0047] Example 8: Please refer to Figure 4. An orthopedic clinical hip joint reduction and fixation device, which differs from Example 1 in that the side support plate 11 has ventilation holes 12.

[0048] In this embodiment, the ventilation holes 12 are used for ventilation and perspiration.

[0049] Example 9: Please refer to Figure 1. An orthopedic clinical hip joint reduction and fixation device differs from Example 1 in that a buffer pad is connected to the inner wall of the side support plate 11.

[0050] In this embodiment, the cushioning pad can prevent the side support plate 11 from compressing the muscles.

Claims

1. A hip joint reduction and fixation device for orthopedic clinical use, comprising a trunk fixation sleeve (1) and a thigh fixation sleeve (2), characterized in that: The torso fixation sleeve (1) and the thigh fixation sleeve (2) are rotatably connected via an external hip joint (3). The torso fixation sleeve (1) and the thigh fixation sleeve (2) include a pair of arc-shaped plate-like side support plates (11). A pair of rigid inserts (13) are fixedly connected to the front and rear ends of the left side support plate (11), and a pair of rigid sockets (17) are fixedly connected to the front and rear ends of the right side support plate (11). The rigid inserts (13) and the rigid sockets (17) are inserted into each other. The rigid insert (13) has forward teeth (22) arranged at equal intervals on its outer side wall. The rigid socket (17) has a toothed plate (20) slidably installed inside it. The toothed plate (20) has reverse teeth (21) arranged at equal intervals on its inner side wall. A spring (23) connects the outer side wall of the toothed plate (20) and the inner side wall of the rigid socket (17). A pair of toothed plates (20) on the same side are connected to a vertical plate (18) set on the outside of the rigid socket (17) through a connecting plate (19).

2. The orthopedic clinical hip joint reduction and fixation device according to claim 1, characterized in that: The hip external rotation joint (3) includes an upper abduction bar (4) and a lower abduction bar (5). The upper abduction bar (4) is fixedly connected to the side support plate (11) on the trunk fixation sleeve (1). The lower abduction bar (5) is fixedly connected to the side support plate (11) on the thigh fixation sleeve (2). A disc base (6) is provided at one end of the upper abduction bar (4) away from the side support plate (11). A turntable (7) is provided at one end of the lower abduction bar (5) away from the side support plate (11). The turntable (7) is rotatably connected to the disc base (6).

3. The orthopedic clinical hip joint reduction and fixation device according to claim 2, characterized in that: Connecting strips (8) are provided on the upper outward extension strip (4) and the lower outward extension strip (5). The connecting strips (8) are detachably and fixedly connected to the side support plate (11). A pair of threaded holes (10) are provided on the side support plate (11). A pair of through holes are provided on the side support plate (11). Screws (9) are inserted through the through holes. The screws (9) are threadedly connected to the threaded holes (10).

4. The orthopedic clinical hip joint reduction and fixation device according to claim 1, characterized in that: An arc-shaped strip (24) is provided on the outer side of the right side support plate (11). The two ends of the arc-shaped strip (24) are provided with wedge-shaped seats (25). The wedge-shaped seats (25) are located on the inner side of the vertical plate (18). A screw head (26) is provided on the outer wall of the middle part of the arc-shaped strip (24).

5. The orthopedic clinical hip joint reduction and fixation device according to claim 1, characterized in that: The rigid insert (13) is provided with reinforcing ribs (14) at both the upper and lower parts.

6. The orthopedic clinical hip joint reduction and fixation device according to claim 1, characterized in that: The rigid insert (13) has a pointed tip (16) at its end.

7. The orthopedic clinical hip joint reduction and fixation device according to claim 1, characterized in that: Guide rails (15) are installed on the upper and lower inner walls of the rigid socket (17), and ball bearings are placed inside the guide rails (15).

8. The orthopedic clinical hip joint reduction and fixation device according to claim 1, characterized in that: The side support plate (11) is provided with ventilation holes (12).

9. The orthopedic clinical hip joint reduction and fixation device according to claim 1, characterized in that: A buffer pad is connected to the inner wall of the side support plate (11).

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