Ulna and radius splint

Abstract

The ulna and radius splint comprises a plurality of bonesetting plates, the bonesetting plates are provided with belt holes, the adjacent bonesetting plates are connected in series through the belt holes and soft belts to form a multi-grid-shaped conjoined body, each bonesetting plate comprises an ulna inner plate, an ulna plate, an ulna outer plate, a radialis outer plate, a radius plate and a radialis inner plate which are arranged in sequence, and further comprises a bone separating column which is of a triangular prism structure. The bone separation column is provided with a V-shaped working surface and a second surface, the bone separation column comprises a first bone separation column and a second bone separation column, in a working state, the first bone separation column is arranged between the ulnar outer plate and the radial outer plate, and the second bone separation column is arranged between the ulnar inner plate and the radial inner plate. The invention has the following advantages: 1, the fracture reduction positioning accuracy is high; 2, the positioning stability is high; and 3, fracture healing is facilitated. And 4, the fixing and treatment effects can be improved through the personalized customized bone separation columns.

Description

Technical Field

[0001] The present invention relates to a medical device, in particular to an external fixation device for splints for treating ulna and radius fractures. Background Art

[0002] External fixation of fractures with splints is a traditional treatment method in traditional Chinese orthopedics. The mechanical principles of external fixation of fractures with splints are as follows: 1. The principle of pressure balance. The fracture ends are restricted by splints, pressing pads, etc. When a fracture occurs, the splint can provide a force in the opposite direction to the fracture displacement, preventing the fracture ends from shifting due to factors such as muscle traction. The splint can apply appropriate pressure laterally for correction. 2. The principle of three-point fixation. Similar to the principle of triangle stability, two fixed points are placed on one side of the fractured limb, and one fixed point is placed on the other side to form a mechanical structure of three-point extrusion, so that the fracture ends can still maintain a relatively stable position under the action of muscle contraction force, external force generated by limb movement, etc., which is beneficial to fracture healing.

[0003] For the treatment of ulna and radius fractures, in the traditional method of external fixation with small splints, before binding the small splints, manual reduction needs to be performed first. Small splint fixation belongs to a non-surgical treatment method, avoiding problems such as possible damage to blood vessels, nerves, and soft tissues around the fracture during surgical incision. Manual reduction corrects the fracture displacement through manual operation. Small splint fixation is an external fixation on the body surface, with little damage to local tissues, less intraoperative bleeding, and can better maintain the position after fracture reduction, having advantages such as a low incidence of postoperative infection, fast fracture healing, fast functional recovery, simple operation, and low cost.

[0004] Disadvantages of traditional small splint external fixation devices: Due to the physiological structure of the interosseous membrane space between the ulna and radius, traditional small splint external fixation devices only consider arranging multiple evenly distributed small splints around the peripheral part of the forearm fracture. Their fixing force mainly depends on the dual action of the bandage and the inside of the limb. Often, the degree of compression of the muscle tissue in the interosseous membrane space of the forearm is insufficient after binding, resulting in insufficient fixing force, affecting the accuracy and stability of fracture reduction and positioning. The uncompressed muscle tissue during the recovery process may cause instability or displacement of the fracture ends after reduction.

[0005] In clinical practice, there is a need for an external fixation device for splints for treating ulna and radius fractures with higher accuracy of reduction and positioning and stronger positioning stability. Summary of the Invention

[0006] The problem to be solved by the present invention is to provide an ulna and radius splint.

[0007] The present invention adopts the following technical scheme: it comprises a plurality of bone-setting plates, each of which is provided with a hole, and adjacent bone-setting plates are connected in series through the hole with a soft belt to form a multi-plate grid-like conjoined body, the bone-setting plates comprise an ulnar plate, an ulnar plate, an ulnar plate, an ulnar plate, an lateral radial plate, a radial plate, and an inner radial plate arranged in sequence, and further comprises a bone-dividing column, the bone-dividing column is a triangular prism structure, the bone-dividing column is provided with a V-shaped working surface and a second surface, the bone-dividing column comprises a first bone-dividing column and a second bone-dividing column, and in a working state, the first bone-dividing column is arranged between the ulnar plate and the lateral radial plate, and the second bone-dividing column is arranged between the inner ulnar plate and the inner radial plate.

[0008] The principle is as follows: the ulna-radius splint of the present invention is based on a traditional multi-plate grid-like joint composed of multiple small splints, and a pair of bone-dividing columns are added. The bone-dividing columns are triangular prism structures. When in working state, the V-shaped working surface of the bone-dividing column presses against the skin of the interosseous membrane space of the forearm between the ulna and the radius, and the second surface presses against the surface of the soft belt. The soft belt is tied and tightened, and the bone-dividing column is pressed in the working position. The bone-dividing column enhances the compression of the muscle tissue in the interosseous membrane space of the forearm and improves the accuracy of reduction and positioning; the bone-dividing column can accurately fit the fracture site, provide effective fixation, prevent the fracture end from displacement or rotation, and improve positioning stability.

[0009] One improvement is that the second surface is provided with a buckle, the first bone-dividing column is connected in series to the soft belt between the ulnar plate and the radial plate through the buckle, and the second bone-dividing column is connected in series to the soft belt between the ulnar plate and the radial plate through the buckle. With this structure, the bone-dividing column is connected to multiple bone-setting plates through the soft belt.

[0010] Another improvement is that the bone-dividing column is a single-body structure. With this structure, the bone-dividing column is not provided with a buckle, and the bone-dividing column is not strung on the soft belt. When the splint is tied after manual reduction, the bone-dividing column is placed at the corresponding working position inside the soft belt, the second surface of the bone-dividing column abuts against the surface of the soft belt, and the V-shaped working surface abuts against and covers the skin of the fractured part. When the soft belt is tightened during the tying operation, the bone-dividing column is pressed in the working position.

[0011] Another improvement is that the edge of the V-shaped working surface is provided with a smooth transition surface. This structure can prevent the sharp edge of the V-shaped working surface from scratching the skin of the fractured part.

[0012] The present invention has the following advantages: 1. It improves the accuracy of fracture reduction and positioning. During binding, a pair of bone-separating columns are arranged opposite to each other at the fracture site. The V-shaped working surfaces of the bone-separating columns abut against the skin of the interosseous membrane space of the forearm. The bone-separating columns enhance the compression degree of the muscle tissue in the interosseous membrane space of the forearm, thereby improving the accuracy of reduction and positioning. 2. It improves the stability of fracture reduction and positioning. The bone-separating columns fit the fracture site in the working position, providing an effective fixing function to prevent displacement or rotation of the fracture ends, and the positioning stability is stronger. 3. It is conducive to promoting fracture healing. By maintaining the stability of the fracture site, the bone-separating columns provide a good biomechanical environment for fracture healing, which helps to stimulate blood circulation and callus formation at the fracture ends, thus accelerating fracture healing. 4. The bone-separating columns can be customized individually to further improve the fixation and treatment effects. Doctors can select appropriate models and sizes of bone-separating columns according to the specific conditions of patients and fracture types to ensure the best fixation and treatment effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the usage state of the present invention (the orthopedic plate and the soft band are not shown).

[0014] Figure 2 is Figure 1 an enlarged schematic cross-sectional structure view of A-A of

[0015] Figure 3 is a three-dimensional structure schematic diagram of the usage state of an embodiment of the present invention.

[0016] Figure 4 is an unfolded structure schematic diagram of an embodiment of the present invention.

[0017] Figure 5 is a schematic diagram of the orthopedic plate structure of an embodiment of the present invention.

[0018] Figure 6 is a schematic diagram of the structure of the bone-separating column (provided with a buckle) of an embodiment of the present invention.

[0019] Figure 7 is a schematic diagram of the structure of the monomeric bone-separating column (not provided with a buckle).

[0020] In the figure: orthopedic plate 1, perforations 2, soft band 3, inner ulnar plate 11, ulnar bone plate 12, outer ulnar plate 13, outer radial plate 14, radial bone plate 15, inner radial plate 16, bone-separating column 17, V-shaped working surface 18, second surface 19, first bone-separating column 20, second bone-separating column 21, ulna 22, radius 23, buckle 24. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] As Figures 1 to 7As shown in the figure, an embodiment of the present invention includes a plurality of bone-setting plates 1. The bone-setting plates 1 are provided with holes 2. Adjacent bone-setting plates 1 are connected in series by the holes 2 with a soft belt 3 to form a multi-plate grid-shaped joint body. The bone-setting plates 1 include an inner ulna plate 11, an ulna plate 12, an outer ulna plate 13, an outer radius plate 14, a radius plate 15, and an inner radius plate 16 arranged in sequence. It also includes a bone-separating column 17. The bone-separating column 17 is a triangular prism structure. The bone-separating column 17 is provided with a V-shaped working surface 18 and a second surface 19. The bone-separating column 17 includes a first bone-separating column 20 and a second bone-separating column 21. In the working state, the first bone-separating column 20 is arranged between the outer ulna plate 13 and the outer radius plate 14, and the second bone-separating column 21 is arranged between the inner ulna plate 11 and the inner radius plate 16.

[0022] The principle is as follows: The ulna and radius splint of the present invention is based on the multi-plate grid-shaped joint body composed of a plurality of traditional small splints, and a pair of bone-separating columns 17 are added. The bone-separating column 17 is a triangular prism structure. In the working state, the V-shaped working surface 18 of the bone-separating column 17 abuts and presses on the skin of the interosseous membrane space between the ulna 22 and the radius 23, and the second surface 19 abuts the surface of the soft belt 3. When the soft belt 3 is tied and tightened, the bone-separating column 17 is pressed tightly in the working position. The bone-separating column 17 enhances the compression degree of the muscle tissue in the interosseous membrane space of the forearm, improves the accuracy of reduction and positioning; the bone-separating column 17 can accurately fit the fracture site, provide an effective fixing effect, prevent the fracture ends from shifting or rotating, and improve the positioning stability.

[0023] As Figure 3 and Figure 6 shown in the figure, one improvement is that the second surface 19 is provided with a buckle 24. The first bone-separating column 20 is connected in series on the soft belt 3 between the outer ulna plate 13 and the outer radius plate 14 through the buckle 24, and the second bone-separating column 21 is connected in series on the soft belt 3 between the inner ulna plate 11 and the inner radius plate 16 through the buckle 24. With this structure, the bone-separating column 17 is integrated with the plurality of bone-setting plates 1 through the soft belt 3.

[0024] As Figure 7 shown in the figure, another improvement is that the bone-separating column 17 is a single-body structure. With this structure, the bone-separating column 17 is not provided with a buckle and is not strung on the soft belt 3. When the splint is tied after manual reduction, the bone-separating column 17 is placed at the corresponding working position on the inner side of the soft belt 3. The second surface 19 of the bone-separating column 17 abuts the surface of the soft belt 3, and the V-shaped working surface 18 abuts and presses on the skin of the fracture part. When tying, tighten the soft belt, and the bone-separating column 17 is pressed tightly in the working position.

[0025] As Figure 2 , Figure 6 and Figure 7 shown in the figure, there is another improvement that the edge part of the V-shaped working surface 18 is provided with a smooth transition surface. With this structure, the sharp edge part of the V-shaped working surface 18 can be avoided from scratching the skin of the fracture part.

[0026] The present invention is not limited to the specific structures of the above embodiments, and equivalent transformations of other similar structures all fall within the protection scope of the present invention.

Claims

1. An ulna and radius splint, comprising a plurality of bone-setting plates, each of which is provided with a hole, and adjacent bone-setting plates are connected in series through the hole with a soft belt to form a multi-plate grid-like conjoined body, wherein the bone-setting plates comprise an inner ulna plate, an ulna plate, an outer ulna plate, an outer radius plate, a radius plate, and an inner radius plate arranged in sequence, characterized in that: It also includes a bone-dividing column, which is a triangular prism structure. The bone-dividing column is provided with a V-shaped working surface and a second surface. The bone-dividing column includes a first bone-dividing column and a second bone-dividing column. In the working state, the first bone-dividing column is arranged between the ulnar plate and the radial plate, and the second bone-dividing column is arranged between the ulnar plate and the radial plate.

2. The ulna and radius splint according to claim 1, characterized in that: The second surface is provided with a buckle, the first bone column is connected in series to the soft belt between the ulnar plate and the radial plate through the buckle, and the second bone column is connected in series to the soft belt between the ulnar plate and the radial plate through the buckle.

3. The ulna and radius splint according to claim 1, characterized in that: The bone column is a monomer structure.

4. The ulna-radius splint according to claim 2 or 3, characterized in that: The edges of the V-shaped working surface are provided with smooth transition surfaces.

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