Orthopedic implant assembly

Abstract

The utility model discloses an orthopaedic implant assembly which comprises an intramedullary nail, at least one threaded hole, at least one screw and at least one screw. The locking plate comprises at least one connecting hole and a plurality of locking holes; and the lag screw is provided with a threaded part, and the threaded part is connected with the threaded hole and the connecting hole so that the locking plate and the intramedullary nail can be connected together. The locking plate and the intramedullary nail are connected together through the lag screw, the lag screw and the intramedullary nail are stably connected through the threaded part, the locking plate can be supported, the situation that a steel plate is supported through a skeleton in practical application is reduced, recovery is facilitated, and therefore the problem that an implant fails is solved.

Description

Technical Field

[0001] This application generally relates to the field of connecting bone parts across a fracture site, and more specifically, to an orthopedic implant component. Background Technology

[0002] Proximal humeral fractures are common in clinical practice, predominantly affecting the elderly, and are often accompanied by osteoporosis. They involve the four main parts of the humerus: the humeral head, greater tuberosity, lesser tuberosity, and surgical neck. Surgical approaches for proximal humeral fractures are diverse, and surgical techniques for this condition are constantly being improved. Minimally invasive internal fixation, plate and screw fixation, or intramedullary nailing are common internal fixation procedures. However, for complex three- or four-part fractures, the presence of a greater tuberosity fracture disrupts the fifth point of support, potentially leading to implant failure postoperatively. Utility Model Content

[0003] A primary objective of this application is to provide an orthopedic implant component that, through the combination of an intramedullary nail and a locking plate, can be used to repair a fracture ring with fifth-point support. Furthermore, by connecting the intramedullary nail and the locking plate together with lag screws, the stability of the implant is enhanced, which can facilitate better patient recovery and thus at least to some extent overcome one or more problems caused by the limitations and defects of related technologies.

[0004] To achieve the above-mentioned objectives, this application adopts the following technical solution:

[0005] According to one aspect of this application, an orthopedic implant assembly is provided, comprising: an intramedullary nail including at least one threaded hole; a locking plate including at least one connecting hole and a plurality of locking holes; and a tension screw having a threaded portion that connects to the threaded hole and the connecting hole respectively to connect the locking plate to the intramedullary nail.

[0006] According to one embodiment of this application, the locking plate includes a bone contact side, the shape of which is configured to match the surface of the bone.

[0007] According to one embodiment of this application, the bone contact side is selected from several of the curved portion, the arc-shaped portion, and / or the planar portion and combined.

[0008] According to one embodiment of this application, the locking plate is provided with the connecting hole, and a plurality of locking holes are disposed around the connecting hole.

[0009] According to one embodiment of this application, the implant assembly further includes a locking member for connecting to at least two fractured bone sites through the locking hole.

[0010] According to one embodiment of this application, the bone contact side is made of an arc-shaped surface with a radius of 20mm to 40mm.

[0011] According to one embodiment of this application, the locking plate is projected onto a vertical plane perpendicular to the central axis of the connecting hole, and the locking hole and the connecting hole are respectively located on different horizontal lines.

[0012] According to one embodiment of this application, the locking hole and the connecting hole are respectively located on different vertical lines.

[0013] According to one embodiment of this application, the locking plate includes a plurality of locking holes, which are respectively located on different horizontal lines.

[0014] According to one embodiment of this application, the plurality of locking holes are respectively located on different vertical lines.

[0015] In this application, the locking plate is connected to the intramedullary nail by a tension screw. The tension screw and the intramedullary nail are securely connected by a threaded part, and the tension screw can support the locking plate. This reduces the need for the steel plate to be supported by the bone in actual applications, which is beneficial for recovery and reduces the problem of implant failure.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The above and other features and advantages of this application will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of an implant component from a first-view perspective, according to an exemplary embodiment.

[0019] Figure 2 This is a structural schematic diagram of an implant component from a second perspective, according to an exemplary embodiment;

[0020] Figure 3 yes Figure 1 A schematic diagram of the locking plate from one perspective;

[0021] Figure 4 yes Figure 1 A structural schematic diagram of the locking plate from another perspective;

[0022] Figure 5 This is a schematic diagram of an implant component from a first-view perspective, according to an exemplary embodiment.

[0023] Figure 6This is a structural schematic diagram of an implant component from a second perspective, according to an exemplary embodiment;

[0024] Figure 7 yes Figure 5 A schematic diagram of the locking plate from one perspective;

[0025] Figure 8 yes Figure 5 A structural schematic diagram of the locking plate from another perspective.

[0026] The reference numerals in the attached figures are explained as follows:

[0027] A, Bone; 1, Intramedullary nail; 2, Locking plate; 21, Connecting hole; 22, Locking hole; 3, Tension screw; 4, Locking element. Detailed Implementation

[0028] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0029] See Figures 1 to 8 In one embodiment, the orthopedic implant assembly includes an intramedullary nail 1, a locking plate 2, and a lag screw, the lag screw being used to connect the locking plate 2 to the intramedullary nail 1. After the orthopedic implant assembly is implanted into the body, the locking plate 2 can repair the fracture ring of the fifth support, that is, the locking plate 2 can support the greater tubercle, enhancing the stability of the implant assembly between the fractured bones A, and better handling the situation where there is a greater tubercle fracture.

[0030] Preferably, the intramedullary nail 1 includes at least one threaded hole, the locking plate 2 includes at least one connecting hole 21 and several locking holes 22, and the tension screw has a threaded portion that connects to the threaded hole and the connecting hole 21 respectively, so as to connect the locking plate 2 and the intramedullary nail 1 together. The tension screw is connected to the intramedullary nail 1 and the locking plate 2 through a threaded connection, which allows more force to be applied to the locking plate 2 in the axial direction of the tension screw, enabling the locking plate 2 to be better fixed to the intramedullary nail 1 by the tension screw. In traditional implants, fixation is achieved using headless screws, and its axial tensile force mainly relies on the friction between the screw and the locking plate 2, resulting in poor stability of the locking plate 2. Alternatively, in traditional implants, the locking plate 2 is fixed to bone A by screws, causing bone A to bear all the tensile force. Excessive external force on bone A can easily lead to failure of the connection between bone A and the screw, making it difficult for fractured bone A to grow and recover. In this embodiment, using a tension screw to connect the locking plate 2 and the intramedullary nail 1 can effectively secure the locking plate 2 to the intramedullary nail 1, greatly improving the stability of the implant and benefiting the patient's recovery.

[0031] See Figure 3 , Figure 4 and Figure 7 , Figure 8 In one embodiment, the locking plate 2 includes a bone contact side, the shape of which is configured to match the surface of the bone. The bone contact side may be a combination of curved, arched, and / or planar portions. The bone contact side, mimicking the surface of bone A, can better support the fractured portion, reduce local stress, enhance contact comfort, and prevent postoperative displacement of the fractured portion. Preferably, the bone contact side is made of an arcuate surface with a radius of 20mm to 40mm. Using an arcuate surface with a shape that mimics bone A enhances the comfort of contact between the locking plate 2 and bone A, while also providing greater adaptability.

[0032] In one embodiment, the locking plate 2 has a connecting hole 21 and a plurality of locking holes 22, the plurality of locking holes 22 being disposed around the connecting hole 21. Preferably, the locking holes 22 are configured as universal locking holes, which can adjust the angle of the steel plate according to the fracture condition and reduce internal stress. The implant assembly also includes a locking member 4, which is used to pass through the locking holes 22 and connect to at least two fractured bone sites A. Preferably, the diameter of the intramedullary nail 1 is 6-11 mm. The traction screw is a fully threaded traction screw, and the diameter of the traction screw is 3.5 mm to 4.5 mm.

[0033] In one embodiment, the locking plate 2 is projected onto a vertical plane perpendicular to the central axis of the connecting hole 21, and the locking hole 22 and the connecting hole 21 are respectively located on different horizontal lines. Furthermore, the locking hole 22 and the connecting hole 21 are respectively located on different vertical lines.

[0034] In one embodiment, the locking plate 2 includes a plurality of locking holes 22, for example, three. The three locking holes 22 are respectively located on different horizontal lines and on different vertical lines.

[0035] In the embodiments of this application, the terms "fitting," "connection," and other such terms should be interpreted broadly. For example, "connection" can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0036] In the description of this specification, the terms "some embodiments," "specific embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the claims. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The above are merely preferred embodiments of the application examples and are not intended to limit the application examples. For those skilled in the art, the application examples can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the application examples should be included within the protection scope of the application examples.

Claims

1. An orthopedic implant assembly, characterized by, The implant assembly comprises: a medullary nail comprising at least one threaded hole; a locking plate comprising at least one connecting hole and a plurality of locking holes; a lag screw provided with a threaded portion, which is connected with the threaded hole and the connecting hole respectively, so as to connect the locking plate and the medullary nail together; the locking plate projects onto a vertical plane perpendicular to the axis of the connecting hole, and the locking holes and the connecting hole are arranged on different horizontal lines respectively.

2. The orthopedic implant assembly of claim 1, wherein, The locking plate comprises a bone-contacting side, which is shaped to match the surface of the bone.

3. The orthopedic implant assembly of claim 2, wherein, The bone-contacting side is composed of a plurality of curved sections, arc sections and / or flat sections.

4. The orthopedic implant assembly of claim 3, wherein, The implant assembly further comprises a locking member for connecting with at least two fractured bone parts through the locking holes.

5. The orthopedic implant assembly of claim 1, wherein, The locking plate is provided with one connecting hole, and a plurality of locking holes are arranged around the connecting hole.

6. The orthopedic implant assembly of claim 2, wherein, The bone-contacting side is made of an arc-shaped curved surface with a radius of 20-40 mm.

7. The orthopedic implant assembly of claim 1, wherein, The locking holes and the connecting hole are arranged on different vertical lines respectively.

8. The orthopedic implant assembly of claim 1, wherein, The locking plate comprises a plurality of locking holes, and a plurality of locking holes are arranged on different horizontal lines respectively.

9. The orthopedic implant assembly of claim 8, wherein, A plurality of locking holes are arranged on different vertical lines respectively.

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