Tibial plateau anterolateral anatomical steel plate

Abstract

The utility model discloses a tibial plateau front and lateral dissection steel sheet relates to tibial plateau front and lateral dissection steel sheet technical field, the utility model aims at solving the technical problem that traditional steel sheet cannot be adjusted flexibly according to patient individual difference or specific fracture situation, and it is difficult to ensure the best fit degree when installing, the utility model discloses a bone plate and first connecting body board are hit, and the bone plate is equipped with a plurality of first locking hole, a plurality of second locking hole and a plurality of combination hole respectively, the first connecting body board is provided with the plug -in body to the side of bone plate upper edge, and the upper edge of bone plate is equipped with the plug -in slot for embedding plug -in body to the side of first connecting body board, and a plurality of first thread hole are equipped with in plug -in body, and the both sides of plug -in slot are equipped with mounting hole respectively, and the mounting hole of both sides is inserted respectively with screw, and the screw is used to be connected with the thread hole of different position after embedding plug -in body in plug -in slot, to carry out telescopic adjustment to the inside arc surface that first connecting body board and bone plate constitute.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an anterolateral anatomical plate of the tibial plateau. Background Technology

[0002] In modern orthopedic surgery, internal fixation is one of the important methods for treating complex fractures. With the advancement of medical technology, various types of internal fixation devices have emerged, among which steel plates, as one of the most commonly used internal fixation devices, play an irreplaceable role in bone repair and reconstruction. For relatively complex injury types such as tibial plateau fractures, selecting an appropriate anatomical plate for fixation is crucial for restoring joint function and preventing complications.

[0003] Currently, traditional anterolateral tibial plateau anatomical plates typically consist of a single metal plate, such as a T-shaped or L-shaped plate, that matches the shape of the bone at a specific location, with several holes for screw fixation. However, these traditional plates often have a fixed geometry, making it impossible to flexibly adjust them according to individual patient differences or specific fracture conditions. Furthermore, ensuring optimal fit during installation is difficult, potentially leading to uneven stress distribution and thus affecting fracture healing and the patient's recovery process. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an anterolateral tibial plateau anatomical plate, which solves the technical problems mentioned in the background art. Traditional plates often have fixed geometric structures, making it impossible to flexibly adjust them according to individual patient differences or specific fracture conditions. Furthermore, it is difficult to ensure optimal fit during installation, which may lead to uneven stress distribution and thus affect fracture healing and the patient's rehabilitation process.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A tibial plateau anterolateral anatomical plate includes a bone plate and a first connecting plate, wherein the bone plate is provided with a plurality of first locking holes, a plurality of second locking holes and a plurality of connecting holes; The first connecting plate has a connector on the side facing the upper edge of the bone plate. The connector also has several third locking holes. The upper edge of the bone plate has a connector groove for embedding the connector on the side facing the first connecting plate. The connector also has several first threaded holes on both sides. The connector groove has mounting holes on both sides. Screws are inserted into the mounting holes on both sides. The screws are used to connect with the threaded holes at different positions after the connector is embedded in the connector groove, so as to adjust the inner arc surface formed by the first connecting plate and the bone plate.

[0006] In some embodiments, a second connecting plate is provided at the transverse and longitudinal bends of the bone plate. The second connecting plate has a plurality of second locking holes. A limiting plate is provided on the edge of the second connecting plate facing the transverse and longitudinal bends. A limiting groove for embedding the limiting plate is provided at the transverse and longitudinal bends of the bone plate. The second connecting plate has positioning holes on both sides of the limiting plate. The bone plate has second threaded holes on both sides of the limiting groove corresponding to the positioning holes, for inserting external screws into the positioning holes and connecting them with the second threaded holes, so that the two connecting plates are fixed at the transverse and longitudinal bends.

[0007] In some embodiments, the inner arc surface formed by the first connecting plate and the bone plate is wrapped around and adapted to the outer surface of the tibial plateau.

[0008] In some embodiments, the third locking hole has the same orientation and spacing as the first locking hole.

[0009] In some embodiments, the first connector plate has a hook-shaped beak structure.

[0010] In some embodiments, after the limiting plate is inserted and fixed to the limiting groove, the plurality of second locking holes opened on the second connecting plate and the plurality of second locking holes opened on the bone plate are distributed in a matrix.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. Medical staff attach the bone plate and the first connecting plate to the patient's tibial plateau surface. By designing a structure with inserts and slots, and combining screws and first threaded holes at different positions, the extension and retraction between the bone plate and the first connecting plate are achieved. This allows the lateral fixation portion of the bone plate to be lengthened or shortened, enabling medical staff to adjust the degree of fit between the plate and the bone during surgery according to actual needs, ensuring better biomechanical adaptation. Simultaneously, this adjustability increases surgical flexibility, helps adapt to the specific conditions of different patients, effectively avoids the drawbacks of fixed bone plate dimensions, and has a wider range of applications.

[0012] 2. When the second connecting plate is not used, the bone plate can be used as an L-shaped steel plate, and the upper limit plate of the second connecting plate can be embedded in the limiting groove at the transverse and longitudinal bends of the bone plate. This allows the second connecting plate to be fixed at the transverse and longitudinal bends of the bone plate, which not only enhances the stability at the transverse and longitudinal bends and prevents the risk of breakage due to stress concentration, but also increases the fixing area through the matrix-distributed second locking holes, making the fixing more secure, dispersing stress, and further improving the stability and durability of the steel plate. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a structural schematic diagram of the disassembled part of this utility model.

[0015] Figure 3 This is a structural schematic diagram of the connector, the third locking hole, and the connector slot of this utility model.

[0016] Figure 4 This is a structural schematic diagram of the second connecting plate, insert plate and limiting groove of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Bone plate; 2. First locking hole; 3. Second locking hole; 4. Connecting hole; 5. First connecting plate; 6. Insertion body; 7. Third locking hole; 8. Insertion groove; 9. First threaded hole; 10. Mounting hole; 11. Screw; 12. Second connecting plate; 13. Limiting plate; 14. Limiting groove; 15. Positioning hole; 16. Second threaded hole. Detailed Implementation

[0018] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0019] All components of this utility model are general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0020] Example 1: See Figure 1-4 This is a schematic diagram of the structure of this utility model. An embodiment of this utility model provides an anterolateral anatomical plate for the tibial plateau, including a bone plate 1 and a first connecting plate 5. The bone plate 1 is provided with a plurality of first locking holes 2, a plurality of second locking holes 3, and a plurality of connecting holes 4. A connector 6 is provided on the side of the first connecting plate 5 facing the upper edge of the bone plate 1. The connector 6 is also provided with a plurality of third locking holes 7. A connector groove 8 for embedding the connector 6 is provided on the side of the upper edge of the bone plate 1 facing the first connecting plate 5. A plurality of first threaded holes 9 are provided on both sides of the connector 6. Mounting holes 10 are provided on both sides of the connector groove 8. Screws 11 are inserted into the mounting holes 10 on both sides. The screws 11 are used to connect with the threaded holes 9 at different positions after the connector 6 is embedded in the connector groove 8, so as to adjust the extension and retraction of the inner arc surface formed by the first connecting plate 5 and the bone plate 1.

[0021] It should be noted that in this embodiment, the materials used for each component are titanium alloy. The size of the first locking holes 2 provided on the upper edge of the bone plate 1 is the same as that of the third locking holes 7 provided on the first connecting plate 5, forming a raft effect to support the joint surface and maintain reduction. The specific size is 3.5mm. The number of second locking holes 3, the bone plate 1, and the number of first locking holes 2 form a triangular stabilizing structure to support the medial fracture fragment. The connecting hole 4 can be locked or pressurized. The first threaded holes 9 are arranged in pairs and multiple sets are equally spaced, located at the front and rear positions of the connector 6 (the first threaded holes 9 at the front are shown, while those at the rear are not shown, but they actually exist; similarly, the mounting holes 10 at the rear are shown). The cross-section of the mounting holes 10 is T-shaped, so that the head of the screw 11 can be embedded. The external dimensions and shape of the connector 6 are consistent with the internal dimensions and shape of the connector groove 8, so that the connector 6 and the connector groove 8 can form a sliding insertion structure. After the connector 6 is embedded in the connector groove 8, it is connected to the threaded holes 9 at different positions to adjust the inner arc surface formed by the first connecting plate 5 and the bone plate.

[0022] Specifically, medical staff attach the bone plate and the first connecting plate to the surface of the patient's tibial plateau. By designing a structure with inserts and slots, and combining screws and first threaded holes at different positions, the extension and retraction between the bone plate and the first connecting plate are achieved. This allows the lateral fixation portion of the bone plate to be lengthened or shortened, enabling medical staff to adjust the degree of fit between the plate and the bone during surgery as needed, ensuring better biomechanical adaptation. Simultaneously, this adjustability increases surgical flexibility, helps adapt to the specific conditions of different patients, effectively avoids the drawbacks of fixed bone plate dimensions, and has a wider range of applications.

[0023] In some embodiments, the inner arc surface formed by the first connecting plate 5 and the bone plate 1 is wrapped around and adapted to the outer surface of the tibial plateau.

[0024] Specifically, the inner curved surface has a wrap-around design, which can more closely fit the natural shape of the tibial plateau, reduce the stimulation of the plate to the surrounding soft tissues, and is beneficial to the patient's postoperative recovery.

[0025] In some embodiments, the third locking hole 7 has the same orientation and spacing as the first locking hole 2.

[0026] Specifically, by ensuring that the third locking hole follows the same direction and spacing as the first locking hole, the consistency and strength of the overall steel plate structure are guaranteed, while also simplifying the positioning steps during the surgical procedure.

[0027] In some embodiments, the first connecting plate 5 has a hook-shaped beak structure.

[0028] Specifically, the hook-shaped first connecting plate 5 can better adapt to the anatomical structure of the tibial plateau, providing additional support points and increasing the reliability of fixation, especially for certain types of fractures.

[0029] Example 2: See Figure 1-4 This is a schematic diagram of the structure of this utility model. An embodiment of this utility model provides an anterolateral anatomical plate for the tibial plateau. Based on embodiment 1, a second connecting plate 12 is provided at the transverse and longitudinal bends of the bone plate 1. The second connecting plate 12 has several second locking holes 3. A limiting plate 13 is provided at the edge of the second connecting plate 12 facing the transverse and longitudinal bends. A limiting groove 14 for embedding the limiting plate 13 is provided at the transverse and longitudinal bends of the bone plate 1. The second connecting plate 12 has positioning holes 15 on both sides of the limiting plate 13. The bone plate 1 has second threaded holes 16 on both sides of the limiting groove 14 corresponding to the positioning holes 15, for inserting external screws into the positioning holes 15 and connecting them with the second threaded holes 16, so that the two connecting plates 12 are fixed at the transverse and longitudinal bends.

[0030] It should be noted that the bone plate 1 itself is an L-shaped steel plate, and the horizontal and vertical bends are the corners of the L-shaped steel plate. The limiting plate 13 can be a block structure distributed in a split manner, or it can be a strip structure that fits the edge of the limiting plate 13. This embodiment does not limit this, as long as the limiting groove 14 is compatible with its shape and size, so that the limiting plate 13 and the limiting groove 14 can form a snap-fit ​​structure. The positioning holes 15 are set on both sides of the limiting plate 13. The cross-section of the positioning holes 15 is T-shaped, and the second threaded hole 16 corresponds to the position of the positioning hole 15. It is used to insert an external screw into the positioning hole 15 and connect it to the second threaded hole 16, so that the two connecting plates 12 are fixed at the horizontal and vertical bends.

[0031] Specifically, when the second connecting plate is not used, the bone plate can be used as an L-shaped steel plate, and the upper limit plate of the second connecting plate can be embedded in the limiting groove at the transverse and longitudinal bends of the bone plate. This allows the second connecting plate to be fixed at the transverse and longitudinal bends of the bone plate, which not only enhances the stability at the transverse and longitudinal bends and prevents the risk of breakage due to stress concentration, but also increases the fixing area through the matrix-distributed second locking holes, making the fixation more secure, dispersing stress, and further improving the stability and durability of the steel plate.

[0032] In some embodiments, after the limiting plate 13 and the limiting groove 14 are inserted and fixed, the plurality of second locking holes 3 opened on the second connecting plate 12 and the plurality of second locking holes 3 opened on the bone plate 1 are distributed in a matrix.

[0033] Specifically, the second locking holes 3 on the second connecting plate 12 and the second locking holes 3 on the bone plate are distributed in a matrix, which not only increases the diversity of fixation, but also allows the selection of the best fixation scheme according to the specific situation of the fracture, thereby improving the treatment effect.

[0034] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0035] The working process and principle of this utility model are as follows: During use, medical personnel place the bone plate 1 onto the patient's tibia. The insert 6 on the first connecting plate 5 moves inward and outward from the insert groove 8 on the bone plate 1. Then, the screw 11 is inserted into the mounting hole 10 and screwed into the first threaded hole 9 at the end position, lengthening the head of the bone plate 1. When the insert 6 is inserted into the insert groove 8 and the screw 11 is screwed into the first threaded hole 9 at the front, a seamless connection between the first connecting plate 5 and the bone plate 1 is achieved, shortening the bone plate's lifespan. This allows medical personnel to adjust the degree of fit between the plate and the bone during surgery according to actual needs, ensuring better biomechanical adaptation. Simultaneously, this adjustability improves surgical flexibility, helps adapt to different patients' specific conditions, effectively avoids the drawbacks of fixed bone plate dimensions, and has a wider range of applications. When the second connecting plate 12 is not used, the bone plate 1 can be used as an L-shaped steel plate. The insert plate 13 on the second connecting plate 12 is inserted into the limiting groove 14 at the bend of the bone plate 1, and the external bolt is inserted into the positioning hole 15 and screwed into the second threaded hole 16. This allows the second connecting plate 12 to be installed at the transverse and longitudinal bends of the bone plate 1, increasing the fixation area, making the fixation more secure, dispersing stress, further improving the stability and durability of the steel plate, and better conforming to the patient's tibial surface.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tibial plateau anterolateral anatomical plate, comprising a bone plate (1) and a first connecting plate (5), characterized in that: The bone plate (1) is provided with a plurality of first locking holes (2), a plurality of second locking holes (3) and a plurality of connecting holes (4); The first connecting plate (5) is provided with a plug body (6) on the side facing the upper edge of the bone plate (1). The plug body (6) is also provided with several third locking holes (7). The upper edge of the bone plate (1) is provided with a plug groove (8) for embedding the plug body (6) on the side facing the first connecting plate (5). Several sets of first threaded holes (9) are also provided on both sides of the plug body (6). Mounting holes (10) are provided on both sides of the plug groove (8). Screws (11) are inserted into the mounting holes (10) on both sides. The screws (11) are used to connect with the first threaded holes (9) at different positions after the plug body (6) is embedded in the plug groove (8) so as to adjust the inner arc surface formed by the first connecting plate (5) and the bone plate (1).

2. The anterolateral tibial plateau anatomical plate according to claim 1, characterized in that: A second connecting plate (12) is provided at the transverse and longitudinal bend of the bone plate (1). The second connecting plate (12) is provided with a plurality of second locking holes (3). A limiting plate (13) is provided on the edge of the second connecting plate (12) facing the transverse and longitudinal bend. A limiting groove (14) for embedding the limiting plate (13) is provided at the transverse and longitudinal bend of the bone plate (1). The second connecting plate (12) is provided with positioning holes (15) on both sides of the limiting plate (13). The bone plate (1) is provided with second threaded holes (16) on both sides of the limiting groove (14) corresponding to the positioning holes (15), for inserting external screws into the positioning holes (15) and connecting with the second threaded holes (16) so that the two connecting plates (12) are fixed at the transverse and longitudinal bend.

3. The anterolateral tibial plateau anatomical plate according to claim 1, characterized in that: The inner arc surface formed by the first connecting plate (5) and the bone plate (1) is wrapped and adapted to the outer surface of the tibial plateau.

4. The anterolateral tibial plateau anatomical plate according to claim 1, characterized in that: The third locking hole (7) has the same orientation and spacing as the first locking hole (2).

5. The anterolateral tibial plateau anatomical plate according to claim 1, characterized in that: The first connecting plate (5) has a hook-shaped bird beak structure.

6. The anterolateral tibial plateau anatomical plate according to claim 2, characterized in that: After the limiting plate (13) and the limiting groove (14) are inserted and fixed, the second locking holes (3) opened on the second connecting plate (12) and the second locking holes (3) opened on the bone plate (1) are distributed in a matrix.

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