Novel medical ankle fracture multi-angle positioning device

Abstract

The invention aims at providing a novel medical ankle fracture multi-angle positioning device, and relates to the technical field of medical instruments, a plurality of fixing belts are arranged on a telescopic rod, and when the device is used, the telescopic rod is fixed to the leg through the fixing belts; a telescopic column is fixedly arranged at the front end of the telescopic rod, a rotating rod is rotatably arranged at the extending end of the telescopic column, a U-shaped head is fixedly arranged at the front end of the rotating rod, and a guide block is rotatably installed in the U-shaped head; a guide cylinder is slidably arranged on the guide block; during use, the guide cylinder is adjusted to the ankle joint through stretching and retracting of the telescopic rod, the inclination direction of the guide cylinder is adjusted through rotation of the rotating rod, the angle of the guide cylinder can be adjusted through rotation of the guide block, the angle of the guide cylinder is limited through the locking bolt on the U-shaped block, and after the position of the guide cylinder is adjusted, the ankle joint can be fixed through sliding of the guide cylinder. The distance between the guide cylinder and the fracture position is adjusted, so that guide positioning is achieved, the device does not need to be held by hand, and a kirschner wire and a screw can be implanted through the guide cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field related to medical devices, and in particular to a new medical multi-angle positioning device for ankle fractures. Background Art

[0002] Ankle fractures are common fractures, with an annual incidence of approximately 1 in 1,000. Ankle fractures are often accompanied by posterior malleolus fractures, accounting for 7%-44% of ankle fractures. The most common type of ankle fracture is supination-external rotation according to the Lauge-Hansen classification, with Grade III and IV ankle fractures often involving the posterior malleolus. Treatment options for posterior malleolus fractures are generally based on the size of the fracture fragment, the degree of displacement, ankle stability, and ligament damage. Posterior malleolus fractures exceeding 25% of the anterior-posterior diameter of the tibiotalar articular surface and with displacement greater than 2 mm require surgical treatment. Anatomically, the posterior malleolus serves as the insertion point of the posterior distal tibiofibular syndesmotic ligament and plays a role in maintaining ligament stability. Some scholars advocate the use of a plate or cannulated screw for posterior malleolus treatment via a posteromedial or posterolateral approach.

[0003] However, the posterior malleolus fracture must be fully exposed during surgery. The posterior malleolus fracture fragment must be flipped, cleaned, and then reduced. This procedure requires extensive dissection of the posterior soft tissue, which may cause posterior ankle pain, deep soft tissue necrosis or infection, sural nerve traction injury, and fat necrosis and liquefaction. Clinically, it has been found that the posterior malleolus fracture fragment can be cleaned of soft tissue, blood clots, and bone fragments through the lateral malleolus fracture gap. The posterior malleolus fracture fragment is then reduced, temporarily fixed with Kirschner wires, and fixed with cannulated screws under positioner guidance.

[0004] Current locators need to be held in hand, which affects operation and even requires multiple people to operate. In addition, existing locators cannot effectively guide and locate fractures of the medial malleolus, lateral malleolus, and posterior malleolus joints. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides the following technical solutions:

[0006] A new medical multi-angle positioning device for ankle fractures includes a telescopic rod, a telescopic column fixedly provided at the front end of the telescopic rod, a rotating rod rotatably provided at the extended end of the telescopic column, a U-shaped head fixedly provided at the front end of the rotating rod, a guide block rotatably installed in the U-shaped head; a guide cylinder is slidably provided on the guide block.

[0007] Furthermore, a plurality of fixing straps are provided on the telescopic rod.

[0008] Furthermore, an adjusting screw is rotatably provided inside the telescopic column, and the protruding end of the telescopic column is threadedly sleeved on the adjusting screw; the rear end of the rotating rod is rotatably connected to the protruding end of the telescopic column, and a fixing bolt is provided on the protruding end of the telescopic column to limit the rotation of the rotating rod.

[0009] Furthermore, the guide block is rotatably connected to the U-shaped head via a fixed rotating shaft, and a locking bolt is provided on the U-shaped head to limit the rotation of the guide block; a scale is provided on the U-shaped head at the position of the rotating shaft, and a pointer is fixed on the rotating shaft.

[0010] Furthermore, the guide cylinder slides through the guide block, and a limiting bolt is provided on the guide block to limit the sliding of the guide cylinder by the limiting bolt.

[0011] Furthermore, the side guide includes a fixed sleeve, a side guide ring, and a telescopic plate. The fixed sleeve and the side guide ring are respectively fixedly installed on both ends of the telescopic plate. The fixed sleeve and the side guide ring are coaxially installed, and the fixed sleeve is movably and detachably installed on the guide cylinder.

[0012] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0013] The present invention provides several fixing straps on the telescopic rod, and when in use, the telescopic rod is fixed to the leg through the fixing straps; and a telescopic column is fixedly provided at the front end of the telescopic rod, and a rotating rod is rotatably provided at the protruding end of the telescopic column, and a U-shaped head is fixedly provided at the front end of the rotating rod, and a guide block is rotatably installed in the U-shaped head; a guide cylinder is slidably provided on the guide block; when in use, the guide cylinder is adjusted to the ankle joint by the extension and contraction of the telescopic rod, and the inclination direction of the guide cylinder is adjusted by rotating the rotating rod, and the angle of the guide cylinder can be guided by rotating the guide block, and the angle of the guide cylinder is limited by the locking bolt on the U-shaped block. After adjusting the position of the guide cylinder, the distance between the guide cylinder and the fracture can be adjusted by sliding the guide cylinder, thereby realizing guide positioning, and Kirschner wires and screws can be implanted through the guide cylinder without the need for a handheld device; the side guide ring of the side guide can be against the posterior ankle, and the fixing needle can be punctured from the front of the ankle to the back of the posterior ankle through the guide cylinder and the side guide ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the three-dimensional structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the installation of the guide cylinder of the present invention;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the telescopic column of the present invention;

[0017] Figure 4 This is a schematic cross-sectional view of a U-shaped head according to the present invention;

[0018] Figure 5 This is a structural schematic diagram of the present invention from another angle.

[0019] In the figure: telescopic rod 1, fixing belt 2, telescopic column 3, adjusting screw 31, fixing bolt 32, rotating rod 4, U-shaped head 5, scale 51, locking bolt 52, guide block 6, limiting bolt 61, rotating shaft 62, guide cylinder 7, side guide 8, fixing sleeve 81, telescopic plate 82, side guide ring 83. DETAILED DESCRIPTION

[0020] 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] Example:

[0022] See also Figure 1-5 A novel multi-angle positioning device for ankle fractures in medical use comprises a telescopic rod 1, a telescopic column 3 being fixedly provided at the front end of the telescopic rod 1, a rotating rod 4 being rotatably provided at the extended end of the telescopic column 3, a U-shaped head 5 being fixedly provided at the front end of the rotating rod 4, a guide block 6 being rotatably installed in the U-shaped head 5; a guide cylinder 7 being slidably provided on the guide block 6;

[0023] In this embodiment, the telescopic rod 1 is provided with a plurality of fixing straps 2, which can be used to fix the telescopic rod 1 on the patient's legs, thereby fixing the entire device and freeing the hands;

[0024] In this embodiment, an adjusting screw 31 is rotatably provided in the telescopic column 3, and the protruding end of the telescopic column 3 is threadedly sleeved on the adjusting screw 31; the rear end of the rotating rod 4 is rotatably connected to the protruding end of the telescopic column 3, and a fixing bolt 32 is provided on the protruding end of the telescopic column 3 to limit the rotation of the rotating rod 4; the guide block 6 is rotatably connected to the U-shaped head 5 by a fixed rotating shaft 62, and a locking bolt 52 is provided on the U-shaped head 5 to limit the rotation of the guide block 6; a scale 51 is provided on the U-shaped head 5 at the position of the rotating shaft 62, and a pointer is fixedly provided on the rotating shaft 62; the guide cylinder 7 slides through the guide block 6, and a limiting bolt 61 is provided on the guide block 6 to limit the sliding of the guide cylinder 7 by the limiting bolt 61;

[0025] In this embodiment, the side guide 8 includes a fixed sleeve 81, a side guide ring 83, and a telescopic plate 82. The fixed sleeve 81 and the side guide ring 83 are fixedly mounted on both ends of the telescopic plate 82, respectively. The fixed sleeve 81 and the side guide ring 83 are coaxially mounted, and the fixed sleeve 81 is detachably mounted on the guide cylinder 7.

[0026] In this embodiment, a plurality of fixing straps 2 are provided on the telescopic rod 1. When in use, the telescopic rod 1 is fixed to the leg by the fixing straps 2; and a telescopic column 3 is fixedly provided at the front end of the telescopic rod 1, and a rotating rod 4 is rotatably provided at the protruding end of the telescopic column 3. A U-shaped head 5 is fixedly provided at the front end of the rotating rod 4, and a guide block 6 is rotatably installed in the U-shaped head 5; a guide cylinder 7 is slidably provided on the guide block 6; when in use, the guide cylinder 7 is adjusted to the ankle joint by telescoping the telescopic rod 1, and the inclination direction of the guide cylinder 7 is adjusted by rotating the rotating rod 4, and the guide cylinder can be guided by rotating the guide block 6. 7, and the scale 51 on the U-shaped head 5 can better observe and record the angle value of the guide cylinder 7, and the locking bolt 52 on the U-shaped block can limit the angle of the guide cylinder 7. After adjusting the position of the guide cylinder 7, the distance between the guide cylinder 7 and the fracture can be adjusted by sliding the guide cylinder 7, thereby realizing guide positioning. No handheld device is required, and the Kirschner wire and screw can be implanted through the guide cylinder 7; the side guide ring 83 of the side guide 8 can be against the posterior ankle, and the fixing needle can be punctured from the front of the ankle to the back of the posterior ankle through the guide cylinder 7 and the side guide ring 83.

[0027] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A new medical ankle fracture multi-angle positioning device, comprising a telescopic rod, characterized in that: A telescopic column is fixedly provided at the front end of the telescopic rod, a rotating rod is rotatably provided at the protruding end of the telescopic column, a U-shaped head is fixedly provided at the front end of the rotating rod, a guide block is rotatably installed in the U-shaped head; a guide cylinder is slidably provided on the guide block; and a side guide is slidably provided on the guide cylinder.

2. A novel medical ankle fracture multi-angle positioning device according to claim 1, characterized in that: A plurality of fixing belts are arranged on the telescopic rod.

3. The novel multi-angle positioning device for ankle fracture according to claim 1, characterized in that: An adjusting screw is rotatably provided in the telescopic column, and the extended end of the telescopic column is threadedly sleeved on the adjusting screw; the rear end of the rotating rod is rotatably connected to the extended end of the telescopic column, and a fixing bolt is provided on the extended end of the telescopic column to limit the rotation of the rotating rod.

4. The novel medical ankle fracture multi-angle positioning device according to claim 1, characterized in that: The guide block is rotatably connected to the U-shaped head via a fixed rotating shaft, and a locking bolt is provided on the U-shaped head to limit the rotation of the guide block; a scale is provided on the U-shaped head at the position of the rotating shaft, and a pointer is fixedly provided on the rotating shaft.

5. The novel medical ankle fracture multi-angle positioning device according to claim 1, characterized in that: The guide cylinder slides through the guide block, and a limiting bolt is provided on the guide block to limit the sliding of the guide cylinder through the limiting bolt.

6. The novel multi-angle positioning device for ankle fracture according to claim 1, characterized in that: The side guide includes a fixed sleeve, a side guide ring, and a telescopic plate. The fixed sleeve and the side guide ring are respectively fixedly mounted on both ends of the telescopic plate. The fixed sleeve and the side guide ring are coaxially mounted, and the fixed sleeve is movably and detachably mounted on the guide cylinder.

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