Combined steel plate door fixing device for tibial plateau fracture
The bridging connection and stable fixation design of the combined steel plate device solves the problems of large trauma and poor support effect of traditional steel plate devices in Schatzker type IV tibial plateau fracture surgery, achieves stable fixation and rapid healing, and reduces surgical risks and costs.
Patent Information
- Application Number
- CN202422333051.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-09-24
AI Technical Summary
Traditional reconstruction plates require extensive tissue stripping and cause severe surgical trauma when treating Schatzker type IV tibial plateau fractures. The resulting surgery results in ineffective support, delayed fracture healing, and knee deformity, which seriously affects lower limb function.
A combined steel plate device is used, including a main steel plate and an inner auxiliary steel plate, which are connected by a bridging block. Stable fixation is achieved by using anastomotic positioning grooves and anastomotic convex teeth. The connection is combined with threaded holes and fixing screws to reduce surgical trauma and soft tissue stripping.
It provides stable support, reduces surgical trauma, shortens operation time, reduces internal fixation costs, adapts to the anatomical structure of different populations, improves fracture fixation effects, and reduces the risk of malunion.
Smart Images
Figure CN223429595U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to orthopedics treatment technical field, especially a tibial plateau fracture combined formula steel plate door fixing device. BACKGROUND
[0002] For common comminuted Schatzker IV type tibial plateau fracture, fracture involves posteromedial and anteromedial platform to comminuted fracture, 2-3 steel plates are needed in operation to support fracture block and articular surface, but the supporting surface of traditional reconstruction steel plate and small T-shaped steel plate is relatively limited, and more tissues need to be stripped in operation, the surgical trauma is larger, the supporting effect of multiple steel plates after operation fails, the fracture fixation effect cannot be maintained, which leads to delayed union and malunion of fracture, and seriously can cause knee joint deformity and lower limb dysfunction. UTILITY MODEL CONTENT
[0003] The utility model discloses a tibial plateau fracture combined formula steel plate door fixing device, which solves the problem of traditional operation needing to strip more tissues, larger surgical trauma, postoperative multiple steel plate supporting effect failure, unable to maintain good fracture fixation effect, leading to delayed union and malunion of fracture, and seriously can cause knee joint deformity and lower limb dysfunction.
[0004] To achieve the above object, the utility model provides the following technical scheme: a tibial plateau fracture combined formula steel plate door fixing device, including main body steel plate and two inside vice steel plates, the main body steel plate and two inside vice steel plates are connected through bridging block between.
[0005] The opposite side of two inside vice steel plates is provided with anastomosis positioning tooth groove, and the inner wall of two anastomosis positioning tooth grooves is respectively positioned and docked with the corresponding bridging block through the anastomosis convex tooth arranged inside.
[0006] Preferably, the surface of two bridging blocks and the front and back surface of two inside vice steel plates and main body steel plate are provided with a plurality of threaded holes.
[0007] Preferably, the front and back surface of main body steel plate is fixedly connected with the corresponding inside vice steel plate and the corresponding bridging block through a plurality of threaded holes and a plurality of fixed screws.
[0008] Preferably, the length of fixed screw is 2mm.
[0009] Preferably, the surface of main body steel plate is provided with a plurality of main body steel weight reduction openings, and the surface of two inside vice steel plates is provided with a plurality of vice steel plate weight reduction openings.
[0010] Preferably, two inside vice steel plates are T-shaped design, and are integrally cast with main body steel plate.
[0011] The technical effects and advantages of the utility model are as follows:
[0012] 1. The utility model discloses simple structure, easy operation, a little change can be put into use on the original fixing device, therefore, the utility model discloses a special for schatzker IV tibial plateau fracture internal fixation device, can provide stable support effect, reduce surgical trauma, shorten the operation time, reduce the operation internal fixation cost.
[0013] 2. The equipment adopts the combined mode, and is flexible and changeable, the bridging vice steel plate adopts the traditional production mode, and various specifications and sizes can be customized to meet different demands, the bridging connection is punched into shape by the same stamping equipment, and the unstable combination is avoided.
[0014] 3. The main body steel plate adopts the original traditional tibial plateau medial anatomical steel plate, and the proximal two sides are polished and processed after stamping forming, and the biological coating treatment can be directly used, avoiding resource waste and original mold waste.
[0015] 4. The bridging screw adopts unified locking screw specifications, and the vice body steel plate fixed hole is prefabricated with threads, and special 2mm screw bridging can be directly used. DRAWINGS
[0016] Figure 1 It is the whole structure schematic view of the utility model.
[0017] Figure 2 It is the overhead structure schematic view of the utility model.
[0018] Figure 3 It is the Figure 2 It is the enlarged structure schematic view of A place in the middle.
[0019] Figure 4 It is the installation display structure schematic view of the utility model.
[0020] In the drawing: 1, main body steel plate, 2, inside vice steel plate, 3, bridging block, 4, anastomosis positioning tooth groove, 5, anastomosis convex tooth, 6, fixed screw, 7, main body steel weight reduction mouth, 8, vice steel plate weight reduction mouth. DETAILED DESCRIPTION
[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.
[0022] The utility model provides Figures 1-4 The illustrated combined steel plate door fixation device for tibial plateau fractures comprises a main steel plate 1 and two inner auxiliary steel plates 2;
[0023] See also Figure 1 、 Figure 2 、 Figure 3 In order to solve the problem that the existing fixation device has limited fixation and support effect on the medial tibial platform, the existing fixation device has high requirements for the insertion position, and there is a risk of damaging blood vessels and nerves when inserting screws. This steel plate can relatively shorten the screw length, so that the joint surface forms a "wrapped" fixation with higher stability. The existing fixation device has poor fit for physiological and anatomical differences and cannot be widely used. The main steel plate 1 and the two medial auxiliary steel plates 2 are connected by a bridging block 3. The opposite sides of the two medial auxiliary steel plates 2 are provided with anastomotic positioning grooves 4. The inner walls of the two anastomotic positioning grooves 4 are respectively positioned and docked with the corresponding bridging blocks 3 through the internally arranged anastomotic convex teeth 5, and a serrated structure is adopted. In order to make the bridge more stable, a plurality of threaded holes are provided on the surfaces of the two bridging blocks 3 and the front and rear surfaces of the two inner auxiliary steel plates 2 and the main steel plate 1. The front and rear surfaces of the main steel plate 1 are fixedly connected with the corresponding inner auxiliary steel plates 2 and the corresponding bridging blocks 3 through a plurality of threaded holes and a plurality of fixing screws 6 respectively. The above structure can be simple in structure and easy to operate. It can be put into use with a slight modification to the original fixing device. Therefore, the utility model designs an internal fixation device specifically for Schatzker IV type tibial plateau fractures, which can provide a stable support effect, reduce surgical trauma, shorten operation time, and reduce the cost of internal fixation during surgery.
[0024] like Figure 1 As shown, the length of the fixing screw 6 is 2 mm, which is relatively short and is matched with the tooth-groove matching connection, which can increase the stability of the connection. The surface of the main steel plate 1 is provided with multiple main steel weight-reducing openings 7, and the surfaces of the two inner auxiliary steel plates 2 are provided with multiple auxiliary steel plate weight-reducing openings 8, which can reduce the weight of the structure itself and enable the structure to remain stable. The two inner auxiliary steel plates 2 are both T-shaped and are cast as one piece with the main steel plate 1, so that the structure itself has strong hardness, ensuring practical stability.
[0025] The utility model discloses working principle: adopt traditional tibial plateau fracture medial "L" type or arc incision approach, reset temporary fixed fracture block, current insert main body steel sheet 1, according to the actual situation, bridge before medial or rear medial auxiliary steel sheet 2, can observe steel sheet position and dissection degree of fit under the perspective, take out and go steel sheet part plasticity, confirm the degree of fit and position good and give to insert, use special fixed screw 6 and main body steel sheet 1 bridge fixed, then through the guider or positioner fixed screw 6 is inserted through the skin, and the support crushed articular surface is stabilized, reduces the soft tissue stripping and important blood vessel nerve injury risk in the operation process, can also reduce normal bone tissue damage simultaneously, and in the actual use process, the structure can be designed different size specifications bridge extension part support steel sheet according to the size of various population's body shape, and further satisfy the demand of different population use.
[0026] Finally, it should be noted that: the above only for the preferred embodiments of the utility model and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.
Claims
1. A combined steel plate door fixing device for tibial plateau fractures, comprising a main steel plate (1) and two inner auxiliary steel plates (2), characterized in that: The main steel plate (1) and the two inner auxiliary steel plates (2) are connected via a bridging block (3); The two opposite sides of the inner auxiliary steel plates (2) are provided with matching positioning tooth grooves (4), and the inner walls of the two matching positioning tooth grooves (4) are positioned and docked with the corresponding bridging blocks (3) through matching protruding teeth (5) provided therein.
2. The combined steel plate door fixing device for tibial plateau fracture according to claim 1, characterized in that: A plurality of threaded holes are provided on the surfaces of the two bridging blocks (3), the two inner auxiliary steel plates (2), and the front and rear surfaces of the main steel plate (1).
3. The combined steel plate door fixing device for tibial plateau fracture according to claim 2, characterized in that: The front and rear surfaces of the main steel plate (1) are fixedly connected to the corresponding inner auxiliary steel plate (2) and the corresponding bridging block (3) through a plurality of threaded holes and a plurality of fixing screws (6).
4. The combined steel plate door fixing device for tibial plateau fracture according to claim 3, characterized in that: The length of the fixing screw (6) is 2 mm.
5. The combined steel plate door fixing device for tibial plateau fracture according to claim 1, characterized in that: The surface of the main steel plate (1) is provided with a plurality of main steel weight-reducing openings (7), and the surfaces of the two inner auxiliary steel plates (2) are both provided with a plurality of auxiliary steel plate weight-reducing openings (8).
6. The combined steel plate door fixing device for tibial plateau fracture according to claim 1, characterized in that: The two inner auxiliary steel plates (2) are both T-shaped and are cast in one piece with the main steel plate (1).