Bone fracture plate and fixing system for distal femoral coronal fracture

Abstract

The utility model discloses a bone fracture plate and fixing system for distal femoral coronal fracture, which comprises an anti-sliding plate, a front connecting plate, a rear connecting plate, a front fixing claw and a rear fixing claw, and at least one first bone nail hole is arranged on the anti-sliding plate; the front connecting plate is fixedly arranged at the lower end of the anti-sliding plate; the rear connecting plate is fixedly arranged at the lower end of the anti-sliding plate, the rear connecting plate and the front connecting plate are located on the two sides of the anti-sliding plate respectively, and the anti-sliding plate, the front connecting plate and the rear connecting plate form a Y-shaped structure. The front fixing claw is fixedly arranged on the front connecting plate and is provided with at least one front fixing hole; the rear fixing claw is fixedly arranged on the rear connecting plate and provided with at least one rear fixing hole, in the using process, the bone fracture plate is fixed to the femoral distal coronal fracture position, a screw is inserted into the first bone nail hole and used for fixing the bone fracture plate and preventing the bone fracture plate from sliding, and screws are inserted into the front fixing hole and the rear fixing hole and used for fixing the bone fracture plate and preventing the bone fracture plate from sliding. The fixing device is used for fixing the thighbone and the bone fracture plate and facilitates operation of medical staff in the operation process.

Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic medical instruments, in particular to a bone fracture plate and a fixing system for distal femoral coronal fractures. Background Art

[0002] Coronal fractures of the medial and lateral femoral condyles of the distal femur are also called Hoffa fractures. In Hoffa fractures, the fracture fragments are often attached to the articular surface of the posterior protrusion of the lateral femoral condyle or medial femoral condyle. The lateral condyle fracture fragment is often displaced posteriorly and externally, and may have the anterior cruciate ligament, popliteal tendon, and lateral head of the gastrocnemius attached to it. The medial condyle fracture fragment often has no posterior cruciate ligament attached to it. Since this intra-articular fracture is the main load-bearing part when the knee is flexed and has a large shear force, most doctors now prefer surgical treatment regardless of whether it is displaced or not.

[0003] Among the current surgical treatment methods, some use screw fixation for fixation, but the vertical shear force of Hoffa fracture is large, and the use of tension screw fixation alone is likely to cause fracture displacement, malunion or nonunion, and some elderly osteoporosis patients use tension screw fixation, which is easy to cause bone compression and affect the flatness and smoothness of the joint surface; others use bone plates for fixation, but because the vertical shear force of Hoffa fracture is large, the bone plate is prone to slippage when subjected to large force, affecting subsequent rehabilitation. Utility Model Content

[0004] The utility model aims to provide a bone plate and a fixation system for distal femoral coronal fractures in view of the above-mentioned deficiencies of the prior art.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is:

[0006] A bone plate for distal femoral coronal fracture, comprising an anti-slip plate provided with at least one first bone screw hole;

[0007] A front connecting plate, fixedly arranged at the lower end of the anti-sliding plate;

[0008] The rear connecting plate is fixedly arranged at the lower end of the anti-sliding plate, and is located on both sides of the anti-sliding plate together with the front connecting plate;

[0009] A front fixing claw, fixedly arranged on the front connecting plate, and provided with at least one front fixing hole;

[0010] The rear fixing claw is fixedly arranged on the rear connecting plate and is provided with at least one rear fixing hole.

[0011] Preferably, the first bone screw hole is a threaded hole.

[0012] Preferably, at least one second bone screw hole is provided on the front connecting plate and the rear connecting plate.

[0013] Preferably, the anti-slip plate, the front connecting plate, the rear connecting plate, the front fixing claws and the rear fixing claws are an integrally formed structure.

[0014] Preferably, the front fixing hole and the rear fixing hole are both countersunk holes.

[0015] Preferably, a gap is provided between the front connecting plate and the rear connecting plate.

[0016] A fixing system also includes a plurality of screws, wherein the plurality of screws are respectively inserted into the front fixing hole, the rear fixing hole and the first bone screw hole for fixing the bone plate.

[0017] The beneficial effects of adopting the above technical solution are:

[0018] 1. In the utility model, the bone plate is set at the fracture site, the front fixing claws and the rear fixing claws are respectively clamped with the two sides of the femur, the front fixing claws and the rear fixing claws wrap the femur, the screws are inserted into the front fixing holes and the rear fixing holes, and the screws are inserted into the first bone nail hole, so that the bone plate is more tightly connected to the femur, avoiding the bone plate from slipping, and facilitating subsequent healing;

[0019] 2. In the present invention, the front fixing claws and the rear fixing claws are respectively located on both sides of the femur, and the screws are inserted into the front fixing holes and the rear fixing holes, and the operation can be performed while the patient is lying on his back, which is convenient for surgical operation;

[0020] 3. In the present invention, the front fixing hole and the rear fixing hole are countersunk holes respectively. After the screw is fixed, the upper surface of the screw is located in the countersunk hole, making the surface of the front fixing claw and the rear fixing claw smoother, avoiding soft tissue damage in subsequent activities and reducing the chance of complications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0022] In the figure: 1 is an anti-slide plate, 2 is a first bone screw hole, 3 is a front connecting plate, 4 is a rear connecting plate, 5 is a front fixing claw, 6 is a front fixing hole, 7 is a rear fixing claw, 8 is a rear fixing hole, and 9 is a second bone screw hole. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figure 1 As shown, a bone fracture plate for coronal fracture of distal femur comprises an anti-plate 1, a front connecting plate 3, a rear connecting plate 4, a front fixing claw 5 and a rear fixing claw 6, the anti-plate 1 is provided with at least one first bone screw hole 2, the first bone screw hole 2 is a threaded hole, which is convenient for inserting and fixing the screw, the front connecting plate 3 is fixedly arranged at the lower end of the anti-plate 1, the rear connecting plate 4 is fixedly arranged at the lower end of the anti-plate 1, and is respectively located on both sides of the anti-plate 1 with the front connecting plate 3, the anti-plate 1, the front connecting plate 3 and the rear connecting plate 4 are combined to form a Y-shaped structure, the bone fracture plate is fitted with the coronal position of the distal femur, the front fixing claw 5 is fixedly arranged on the front connecting plate 3, and is provided with at least one front fixing hole 6, the rear fixing claw 5 is fixedly arranged on the front connecting plate 3, The fixing claw 7 is fixedly arranged on the rear connecting plate 4, and is provided with at least one rear fixing hole 8. The front fixing claw 5 and the rear fixing claw 7 are arc-shaped structures, which fit the two sides of the femoral coronal position, and can wrap the femoral coronal fracture. Then, screws are inserted into the front fixing hole 6, the rear fixing hole 8 and the first bone nail hole 2. The screws in the first bone nail hole 2 can prevent the bone plate from sliding sideways. The screws in the front fixing hole 6 and the rear fixing hole 8 can splice and fix the fractured femur. The bone plate can enhance the supporting strength of the femur and facilitate subsequent healing. The front fixing hole 6 and the rear fixing hole 8 are respectively located on both sides of the femur. During the operation, the patient can lie on his back to perform the operation, which is more convenient for medical staff to operate.

[0027] In this embodiment, three first bone screw holes 2 are provided, one front fixing hole 6 is provided, and two rear fixing holes 8 are provided. The screws in the front fixing hole 6 and the rear fixing hole 8 are cross-arranged, which can enhance the connection strength.

[0028] Furthermore, at least one second bone screw hole 9 is provided on each of the front connecting plate 3 and the rear connecting plate 4 .

[0029] Furthermore, the anti-slip plate 1, the front connecting plate 3, the rear connecting plate 4, the front fixing claw 5 and the rear fixing claw 7 are an integrally formed structure.

[0030] Furthermore, the front fixing hole 6 and the rear fixing hole 8 are both countersunk holes. In the present embodiment, after the screw is inserted into the front fixing hole 6 and the rear fixing hole 8, the head of the screw can be sunk into the countersunk hole to prevent the head of the screw from protruding, making the outer surface of the front fixing claw 5 and the rear fixing claw 7 smoother, thereby avoiding damage to the soft tissue during the activity.

[0031] Furthermore, a gap is provided between the front connecting plate 3 and the rear connecting plate 4, and the gap can prevent the bone plate from excessively disturbing the soft tissue, reduce the impact on the soft tissue during postoperative activities, and facilitate subsequent activity recovery.

[0032] A fixation system further comprises a plurality of screws, wherein the plurality of screws are respectively inserted into the front fixation hole 6, the rear fixation hole 8 and the first bone screw hole 2 for fixing the bone plate.

[0033] In another embodiment, a screw is inserted into the second bone screw hole 9 to further fix the bone plate so that the bone plate can be more firmly fixed on the femur.

[0034] In another embodiment, no screw is inserted into the second bone screw hole 9, so as to facilitate the recovery of the soft tissue after surgery and accelerate the recovery speed.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bone plate for distal femoral coronal fracture, characterized in that: It comprises an anti-slide plate (1) provided with at least one first bone screw hole (2); A front connecting plate (3) is fixedly arranged on the lower end of the anti-sliding plate (1); A rear connecting plate (4) is fixedly arranged at the lower end of the anti-sliding plate (1), and is located on both sides of the anti-sliding plate (1) together with the front connecting plate (3); A front fixing claw (5) is fixedly mounted on the front connecting plate (3) and is provided with at least one front fixing hole (6); The rear fixing claw (7) is fixedly arranged on the rear connecting plate (4) and is provided with at least one rear fixing hole (8).

2. A bone fracture plate for distal femoral coronal fracture according to claim 1, characterized in that: The first bone screw hole (2) is a threaded hole.

3. A bone fracture plate for distal femoral coronal fracture according to claim 1, characterized in that: At least one second bone screw hole (9) is provided on each of the front connecting plate (3) and the rear connecting plate (4).

4. A bone fracture plate for distal femoral coronal fracture according to claim 1, characterized in that: The anti-slide plate (1), the front connecting plate (3), the rear connecting plate (4), the front fixing claw (5) and the rear fixing claw (7) are an integrally formed structure.

5. A bone fracture plate for distal femoral coronal fracture according to claim 1, characterized in that: The front fixing hole (6) and the rear fixing hole (8) are both countersunk holes.

6. A bone fracture plate for distal femoral coronal fracture according to claim 1, characterized in that: A gap is provided between the front connecting plate (3) and the rear connecting plate (4).

7. A fixing system, characterized in that: The bone plate comprises the bone plate according to any one of claims 1 to 6, and also comprises a plurality of screws, wherein the plurality of screws are respectively inserted into the front fixing hole (6), the rear fixing hole (8) and the first bone screw hole (2) for fixing the bone plate.

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