Ulna olecranon modular bone fracture plate

Abstract

The utility model relates to the technical field of medical instruments, in particular to an ulna olecranon modularized bone fracture plate which comprises a modularized base plate (1), side wing plates (2) and extension plates. The base plate (1) is a plate face with one end provided with a certain bending angle, the bent end is a base plate bending end (11) and is fixed to the near end of a patient during use, the other end is a base plate extending end (12) and is used for being connected with an extending plate, and the extending plate is detachably connected with the base plate. A side wing plate fixing hole (13) is formed in the position, away from the bent end of the foundation plate, of the foundation plate (1) and used for connecting and fixing the side wing plate (2), and the side wing plate (2) and the foundation plate form a cross-shaped structure. By arranging the modularized base plate (1), the side wing plates (2) and the extension plates, the bone fracture plate is suitable for various ulna olecranon fracture conditions, and the problems that a bone fracture plate is single in function, relatively limited in application range and too high in production cost are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a modular bone fracture plate for the ulna olecranon. Background Art

[0002] Olecranon fracture is a common elbow injury in clinical practice. It is an intra-articular fracture. After the fracture, the elbow flexion and extension activities are accompanied. The fracture ends are prone to separation and displacement. The defect or unevenness of the articular surface of the olecranon semilunar notch can cause elbow stiffness or traumatic osteoarthritis in the later stage. Therefore, early diagnosis and treatment are required. Non-surgical treatment is often ineffective and seriously affects normal life. Therefore, open reduction and internal fixation are chosen in most cases. Patients can perform functional exercises at an early stage to effectively avoid the occurrence and progression of elbow injury complications. At present, the most commonly used internal fixation methods in clinical practice are tension band fixation and plate fixation. Tension band fixation is mainly used to treat non-comminuted olecranon fractures, and there are postoperative complications such as Kirschner wire withdrawal and needle tail irritation, as well as the risk of local infection. Plate fixation is a traditional fixation method, especially suitable for ulnar comminuted fractures containing the olecranon base. The existing metal plate structure fixation cannot be universal when the fracture line is long or the fracture is comminuted, which makes the demand for more types of plates increase the production cost.

[0003] In the existing technology, Chinese patent CN104814781A discloses a modular assembly bone plate to solve the problem that the existing bone plate can only be used for specific patients. The bone plate body is composed of a number of metal plates that are detachably connected together, the length is adjustable, and the versatility is strong;

[0004] Chinese patent CN219354125U discloses a palmar modular bone plate, which is composed of a straight base plate, a wing support plate and a hook plate. The appropriate usage method can be selected according to different palmar fracture conditions. The straight base plate can be used alone or in any combination with the wing support plate and / or the hook plate, thereby improving the versatility of the palmar bone plate, reducing the types of products originally required, and reducing production costs.

[0005] In the prior art, Chinese patent CN104814781A and Chinese patent CN219354125U disclose the design of modular assembly bone plates to solve the problem that existing bone plates can only be used for specific patients. However, there is no modular bone plate applied to the internal fixation after different elbow fractures, especially after different olecranon fractures. Utility Model Content

[0006] The utility model is a modular bone fracture plate for the ulnar olecranon. By providing a modular base plate, a side wing plate and an extension plate, the bone fracture plate is applicable to various cases of ulnar olecranon fracture, and the problems of a single function of the bone fracture plate, a relatively limited application range and excessively high production costs are solved. Based on this, the utility model is completed.

[0007] The utility model provides a modular osteosynthesis plate for the ulna olecranon, comprising a modular base plate 1, a wing plate 2 and an extension plate; the base plate 1 is a plate surface with a certain bending angle at one end, wherein the bent end is a bent end 11 of the base plate, which is fixed to the proximal end of the patient when in use, and the other end is an extended end 12 of the base plate, which is used to connect the extension plate, and the extension plate is detachably connected to the base plate; the base plate 1 is provided with a wing plate fixing hole 13 at a certain position away from the bent end of the base plate, which is used to connect and fix the wing plate 2, and the wing plate 2 and the base plate form a "cross" structure.

[0008] Furthermore, the base plate 1 is provided with a plurality of base plate screw holes 101 and base plate positioning Kirschner wire holes 102, a base plate waist-shaped hole 103 is provided on the plate surface from the side wing plate fixing hole 13 to the base plate extension end 12, an extension plate connecting plate 104 is provided at the base plate extension end 12, the base plate screw holes 101 and the base plate waist-shaped holes 103 are used for fixing the screws, and the base plate positioning Kirschner wire hole 102 is used for fixing and positioning the Kirschner wire.

[0009] Furthermore, the side wing plate 2 includes a fixing hole 21 connected and fixed to the base plate 1 and a side wing plate screw hole 22 arranged at both ends of the side wing plate 2 .

[0010] Furthermore, a connecting pin is provided at the connection between the extension plate and the base plate 1, and the connecting pin cooperates with the extension plate connecting plate 104 on the base plate 1. The extension plate connecting plate 104 is inserted into the connecting pin and fixed to extend the base plate 1; the extension plate is provided with a plurality of extension plate screw holes and extension plate waist-shaped holes for fixing screws, as well as an extension plate positioning Kirschner wire hole for fixing and positioning Kirschner wires.

[0011] Furthermore, two side wing plate fixing holes 13 are provided to facilitate use for different patients, and avoidance grooves are provided at the fixed fit between the side wing plate 2 and the base plate 1 to facilitate the connection between the base plate 1 and the side wing plate 2.

[0012] Furthermore, the extension plate 3 has multiple lengths to accommodate different patients.

[0013] Compared with the prior art, the ulna olecranon modular bone plate provided by the utility model has the following technical advantages:

[0014] The utility model discloses a modular bone fracture plate for the ulnar olecranon. By providing a modular base plate 1, wing plates 2 and extension plates 3, the bone fracture plate is applicable to various cases of ulnar olecranon fracture, thereby solving the problem that the bone fracture plate has a single function and can only be used for one type of ulnar olecranon fracture when in use. By arbitrarily assembling the base plate 1, wing plates 2 and extension plates 3, the problem that the application range of the bone fracture plate is relatively limited is solved. Since the conditions of ulnar olecranon fractures of patients are not the same, it is necessary to produce bone fracture plates suitable for the patients. By arbitrarily assembling the base plate 1, wing plates 2 and extension plates 3, the utility model is applicable to various patients, and there is no need to produce bone fracture plates specifically for the patients, thereby solving the problem of excessively high production costs. By detachably connecting the base plate 1 with the wing plates 2 and extension plates 3, the bone fracture plate is easy to use, and it is convenient for doctors to choose to use it according to specific conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a structural schematic diagram of a modular olecranon bone plate base plate with side wing plates added thereto.

[0016] Figure 2 The present invention is a structural schematic diagram of a modular olecranon bone plate base plate with an extension plate added thereto.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of a base plate of an ulna olecranon modular bone fracture plate.

[0018] Figure 4 A rear view of a base plate of an ulnar olecranon modular bone plate.

[0019] Figure 5 The present invention is a schematic diagram of the structure of a side wing plate of an ulnar olecranon modular bone fracture plate.

[0020] Figure 6 Rear view of a olecranon modular plate base plate with wing plates added.

[0021] Figure 7 The present invention is a schematic structural diagram of a first extension plate of an ulna olecranon modular bone fracture plate.

[0022] Figure 8 The present invention is a schematic structural diagram of a second extension plate of an ulna olecranon modular bone fracture plate.

[0023] The attached drawings indicate: 1-base plate; 11-bending end of base plate; 12-extended end of base plate; 13-fixing hole of side wing plate; 101-screw hole of base plate; 102-positioning hole of base plate for Kirschner wire; 103-waist-shaped hole of base plate; 104-connecting plate of extension plate; 2-side wing plate; 21-fixing hole; 22-screw hole of side wing plate; 3-first extension plate; 31-free end of first extension plate; 32-connecting end of first extension plate; 301-waist-shaped hole of first extension plate; 302-screw hole of first extension plate; 303-positioning hole of first extension plate for Kirschner wire; 304-connecting pin of first extension plate; 4-second extension plate; 41-free end of second extension plate; 42-connecting end of second extension plate; 401-waist-shaped hole of second extension plate; 402-screw hole of second extension plate; 403-positioning hole of second extension plate for Kirschner wire; 404-connecting pin of second extension plate. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0025] Embodiment A modular bone plate for the ulna olecranon

[0026] Specific structure such as Figure 1-8 shown.

[0027] The present embodiment provides a modular osteosynthesis plate for the ulna olecranon, comprising a modular base plate 1, a wing plate 2 and an extension plate; the base plate 1 is a plate surface with a certain bending angle at one end, wherein the bent end is a bent end 11 of the base plate, which is fixed to the proximal end of the patient when in use, and the other end is an extended end 12 of the base plate, which is used to connect the extension plate, and the extension plate is detachably connected to the base plate; the base plate 1 is provided with a wing plate fixing hole 13 at a certain position away from the bent end of the base plate, which is used to connect and fix the wing plate 2, and the wing plate 2 forms a "cross" structure with the base plate.

[0028] The base plate 1 is provided with a plurality of base plate screw holes 101 and base plate positioning Kirschner wire holes 102, a base plate waist-shaped hole 103 is provided on the plate surface from the side wing plate fixing hole 13 to the base plate extension end 12, and an extension plate connecting plate 104 is provided on the side of the base plate extension end 12 away from the side wing plate fixing hole 13.

[0029] The side wing plate 2 includes a fixing hole 21 connected and fixed to the base plate 1 and side wing plate screw holes 22 arranged at both ends of the side wing plate 2 .

[0030] There are two side wing plate fixing holes 13, and one of the side wing plate fixing holes 13 is selected according to the specific situation to fix the side wing plate 2. An avoidance groove is provided at the fixed joint between the side wing plate 2 and the base plate 1 to facilitate the connection between the base plate 1 and the side wing plate 2.

[0031] In one specific embodiment, the base plate 1 is used to connect the first extension plate 3.

[0032] A first extension plate connecting pin 304 is provided at the connection between the first extension plate connecting end 32 of the first extension plate 3 and the base plate 1. The first extension plate connecting pin 304 is matched and connected with the extension plate connecting plate 104 on the base plate 1. The extension plate connecting plate 104 is inserted into the first extension plate connecting pin 304 and fixed to extend the base plate 1. The first extension plate 3 is provided with a plurality of first extension plate screw holes 301 and extension plate waist-shaped holes 303 for fixing screws, as well as an extension plate positioning Kirschner wire hole 302 for fixing and positioning Kirschner wires.

[0033] In one specific embodiment, the base plate 1 is used to connect a second extension plate 4 , and the second extension plate 4 is different in length from the first extension plate 3 .

[0034] A second extension plate connecting pin 404 is provided at the connection between the second extension plate connecting end 42 of the second extension plate 4 and the base plate 1. The second extension plate connecting pin 404 is cooperated and connected with the extension plate connecting plate 104 on the base plate 1. The extension plate connecting plate 104 is inserted into the second extension plate connecting pin 404 and fixed to extend the base plate 1. The second extension plate 4 is provided with a plurality of first extension plate screw holes 401 and extension plate waist-shaped holes 403 for fixing screws, as well as an extension plate positioning Kirschner wire hole 402 for fixing and positioning Kirschner wires.

[0035] A method for using a modular bone fracture plate for the ulna olecranon provided by the utility model is as follows:

[0036] 1. According to the specific conditions of the patient, fix the base plate 1 and the second fixing frame side wing plate 2 through the appropriate side wing plate fixing holes 13, select an extension plate of appropriate length, and fix it to the extension plate connecting plate 104 on the base plate 1 through the connecting pins on the extension plate.

[0037] 2. After completing the preparation work, use the positioning Kirschner wire to position it and use the screws to fix it. The positioning Kirschner wire and the screws are fixed through the corresponding holes on the base plate 1, the side wing plate 2 and the extension plate 3.

[0038] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A modular bone plate for the ulna olecranon, characterized in that: The invention comprises a modular base plate (1), a side wing plate (2) and an extension plate; the base plate (1) is a plate surface having a certain bending angle at one end, wherein the bent end is a base plate bent end (11) which is fixed to the proximal end of a patient when in use, and the other end is a base plate extension end (12) which is used to connect the extension plate, and the extension plate is detachably connected to the base plate; the base plate (1) is provided with a side wing plate fixing hole (13) at a certain position away from the bent end of the base plate, which is used to connect and fix the side wing plate (2), and the side wing plate (2) and the base plate form a "cross" structure.

2. The modular osteosynthesis plate for the ulna olecranon according to claim 1, characterized in that The base plate (1) is provided with a plurality of base plate screw holes (101) and base plate positioning Kirschner wire holes (102); a base plate waist-shaped hole (103) is provided on the plate surface from the side wing plate fixing hole (13) to the base plate extension end (12); an extension plate connecting plate (104) is provided at the base plate extension end (12); the base plate screw holes (101) and the base plate waist-shaped holes (103) are used for fixing screws, and the base plate positioning Kirschner wire holes (102) are used for fixing and positioning Kirschner wires.

3. The modular osteosynthesis plate for the ulna olecranon according to claim 1, characterized in that The side wing plate (2) comprises a fixing hole (21) connected and fixed to the base plate (1) and side wing plate screw holes (22) arranged at both ends of the side wing plate (2).

4. The modular osteosynthesis plate for the ulna olecranon according to claim 1, characterized in that : A connecting pin is provided at the connection between the extension plate and the base plate (1), and the connecting pin cooperates with the extension plate connecting plate (104) on the base plate (1). The extension plate connecting plate (104) is inserted into the connecting pin and fixed to extend the base plate (1); the extension plate is provided with a plurality of extension plate screw holes and extension plate waist-shaped holes for fixing screws, as well as an extension plate positioning Kirschner wire hole for fixing and positioning the Kirschner wire.

5. The modular osteosynthesis plate for the ulna olecranon according to claim 1, characterized in that The side wing plate fixing holes (13) are provided with two holes, which are convenient for use on different patients. An avoidance notch is provided at the place where the side wing plate (2) and the base plate (1) are fixed and fitted, so as to facilitate the connection between the base plate (1) and the side wing plate (2).

6. The ulnar olecranon modular bone plate according to claim 1, characterized in that The extension plate (3) has multiple length sizes to accommodate different patients.

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