A universal locking steel plate for proximal humerus

Abstract

The present application discloses a proximal humeral universal locking steel plate, which belongs to the technical field of humeral locking steel plates, and comprises a main body module and a plurality of universal modules, wherein the main body module comprises a strip portion, an arc portion and a tubercle portion, wherein the two ends of the arc portion are respectively connected to the strip portion and the tubercle portion, and the plurality of universal modules are respectively arranged inside the strip portion and the tubercle portion, wherein the universal module comprises a universal mounting groove provided inside the strip portion, wherein the internal movability of the universal mounting groove is connected with a universal ball, wherein a screw mounting hole is provided through the interior of the universal ball, and a fixing assembly is provided on the inner wall of the universal mounting groove, and through the arrangement of the universal ball, the fixing assembly and the adjusting assembly, the universal ball can move freely inside the universal mounting groove, thereby making the steel plate less limited, having more angles, and having a higher degree of freedom, thereby adapting to the needs of more patients.

Description

Technical Field

[0001] The present application relates to the technical field of humeral locking plates, and more specifically, to a proximal humeral universal locking plate. Background Art

[0002] The humerus is the thickest bone in the upper limb. The upper end forms the shoulder joint with the scapula, and the lower end forms the elbow joint with the radius and ulna. The upper end of the humerus is composed of the humeral head, humeral neck, greater tubercle and lesser tubercle. The spherical humeral head is articulated with the glenoid cavity of the scapula. The annular shallow groove around the humeral head separates the humeral head from the greater and lesser tubercle, which is called the anatomical neck of the humerus. When the humerus is fractured, it is often treated by locking the surgical neck of the humerus with a locking plate.

[0003] According to the search, the patent number is CN204890154U, a proximal humeral multi-directional locking steel plate, comprising: a long strip main body and a head bent and extended from the long strip main body, the long strip main body and the head are provided with a plurality of threaded holes, 3 to 6 incisions are opened on the hole wall of the threaded hole, and the incision extends along the axial direction of the threaded hole. The locking steel plate in the utility model is provided with a plurality of incisions extending along the axial direction of the threaded hole in the threaded hole, thereby dividing the hole wall of the threaded hole into several sections. During the operation, the doctor can choose the screw-in angle of the fixing screw according to the specific position of the fracture line. The threaded hole structure in the utility model can meet the multi-directional screw-in requirements of the fixing screw. When the fixing screw is screwed into the threaded hole, no matter which direction it is screwed, there is always a section of the internal thread of the hole wall that is screwed with the external thread of the fixing screw.

[0004] Regarding the above-mentioned related technologies, the applicant believes that although the above-mentioned locking steel plate can lock the humerus when used, and more angles can be selected to meet various needs, the injury conditions of each patient are not the same. Although multiple angles are prepared for selection, when the patient is treated, the reserved angles for some injuries cannot be perfectly adapted, resulting in certain limitations in the use of the above-mentioned locking steel plate. For this reason, we propose a proximal humeral universal locking steel plate. Utility Model Content

[0005] In order to solve the above problems, the present application provides a proximal humeral universal locking plate, which adopts the following technical solution:

[0006] A proximal humeral universal locking steel plate comprises a main body module and a plurality of universal modules, wherein the main body module comprises a strip portion, an arc portion and a tubercle portion, wherein the two ends of the arc portion are respectively connected to the strip portion and the tubercle portion, wherein the plurality of universal modules are respectively arranged inside the strip portion and the tubercle portion, wherein the universal module comprises a universal mounting groove provided inside the strip portion, wherein a universal ball is movably connected inside the universal mounting groove, wherein a screw mounting hole is provided inside the universal ball, wherein a fixing assembly is provided on the inner wall of the universal mounting groove, wherein the fixing assembly is in conflict with the outer surface of the universal ball, wherein an adjustment assembly is provided inside the strip portion, wherein the fixing assembly is connected to the adjustment assembly.

[0007] Furthermore, the two fixing components each include a movable groove opened on the inner wall of the universal mounting groove, the interior of the two movable grooves are movably connected with a fixed block, the adjacent ends of the two fixing blocks are each provided with a clamping groove that matches the groove on the outer surface of the universal ball, and the adjacent ends of the two fixing blocks are in contact with the outer surface of the universal ball through the clamping groove.

[0008] By adopting the above technical solution, the universal ball can be locked by clamping the two fixing blocks.

[0009] Furthermore, the adjustment component includes a cylindrical through groove opened inside the strip portion, a bidirectional threaded rod is rotatably connected inside the cylindrical through groove, two connecting grooves are opened on the inner wall of the cylindrical through groove, the two connecting grooves are respectively connected to the two movable grooves, the outer surface of the bidirectional threaded rod is threadedly connected to two connecting blocks, the two connecting blocks extend to the interior of the two movable grooves through the two through grooves respectively, and the two connecting blocks are respectively fixedly connected to the two fixed blocks.

[0010] By adopting the above technical solution, the two fixing blocks can be controlled to move closer and farther apart by rotating the bidirectional threaded rod.

[0011] Furthermore, the adjustment assembly also includes two wrench slots respectively opened at both ends of the bidirectional threaded rod, and the inner walls of the two wrench slots are both provided with a cross groove.

[0012] By adopting the above technical solution, the wrench slot and the cross slot are provided, so that the screw and the hexagonal wrench can be used to rotate the bidirectional threaded rod.

[0013] Furthermore, the universal module also includes two limit sleeves which are respectively fixedly connected to the outer surface of the bidirectional threaded rod, the two limit sleeves are respectively close to the two ends of the bidirectional threaded rod, and the two limit sleeves are movably connected to the inside of the strip part.

[0014] By adopting the above technical solution, the bidirectional threaded rod can be limited, making the bidirectional threaded rod more stable and

[0015] Furthermore, the universal module also includes two expansion slots respectively opened at the top and bottom of the universal mounting slot.

[0016] By adopting the above technical solution, the screw can swing to a larger angle.

[0017] Furthermore, the strip portion, the arc portion and the nodule portion are all made of titanium alloy material.

[0018] By adopting the above technical solution, the titanium alloy has high strength and good corrosion resistance, and the overall strength is improved.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] (1) The present application provides a universal ball, a fixing assembly and an adjusting assembly so that the universal ball can move freely inside the universal mounting slot, thereby making the steel plate less limited, having more angles and a higher degree of freedom, thereby adapting to the needs of more patients;

[0021] (2) The present application provides a limit sleeve and an expansion slot so that the two limit sleeves can make the installation of the bidirectional threaded rod more stable, and the expansion slot allows the screw to adjust the drilling direction more freely, further improving the overall degree of freedom. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of this application;

[0023] Figure 2 It is a schematic diagram of the top-down structure of this application;

[0024] Figure 3 This is a schematic diagram of the transverse cross-sectional structure of the present application;

[0025] Figure 4 Schematic diagram of the structure of the components adjusted for this application.

[0026] Description of the numbers in the figure:

[0027] 100, main body module; 110, strip portion; 120, arc portion; 130, nodule portion;

[0028] 200, universal module; 210, universal mounting slot; 220, universal ball; 230, screw mounting hole; 240, fixing assembly; 241, movable slot; 242, fixing block; 250, adjustment assembly; 251, bidirectional threaded rod; 252, connecting slot; 253, connecting block; 254, wrench slot; 255, cross slot; 260, limit sleeve; 270, expansion slot. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0030] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 this application can be understood according to specific circumstances.

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] See also Figure 1-4 A proximal humeral universal locking steel plate comprises a main body module 100 and a plurality of universal modules 200, wherein the main body module 100 comprises a strip portion 110, an arc portion 120 and a tubercle portion 130, wherein two ends of the arc portion 120 are respectively connected to the strip portion 110 and the tubercle portion 130, wherein the plurality of universal modules 200 are respectively arranged inside the strip portion 110 and the tubercle portion 130, wherein the universal module 200 comprises a universal mounting groove 210 provided inside the strip portion 110, wherein a universal ball 220 is movably connected inside the universal mounting groove 210, wherein a screw mounting hole 230 is provided inside the universal ball 220, wherein a fixing assembly 240 is provided on the inner wall of the universal mounting groove 210, wherein the fixing assembly 240 is in conflict with the outer surface of the universal ball 220, wherein an adjustment assembly 250 is provided inside the strip portion 110, wherein the fixing assembly 240 is connected to the adjustment assembly 250.

[0034] When in use, the staff uses a tool to rotate the adjustment component 250, and the adjustment component 250 will drive the fixing component 240 to unlock the universal ball 220. Then, the universal ball 220 is pushed to move inside the universal mounting slot 210, thereby changing the direction of the screw mounting hole 230. Then, the adjustment component 250 drives the fixing component 240 to lock the universal ball 220. Finally, the screw is installed through the screw mounting hole 230 and drilled into the humerus to complete the installation of the locking plate.

[0035] The two fixing components 240 each include a movable groove 241 provided on the inner wall of the universal mounting groove 210, the interior of the two movable grooves 241 are movably connected with a fixing block 242, the adjacent ends of the two fixing blocks 242 are provided with a clamping groove that matches the groove on the outer surface of the universal ball 220, and the adjacent ends of the two fixing blocks 242 are in contact with the outer surface of the universal ball 220 through the clamping groove, and the adjustment component 250 includes a cylindrical through groove provided inside the strip portion 110, and the interior of the cylindrical through groove is rotatably connected with a bidirectional threaded rod 251, and the cylindrical through groove is Two connecting grooves 252 are provided on the inner wall, and the two connecting grooves 252 are respectively connected to the two movable grooves 241. The outer surface of the two-way threaded rod 251 is threadedly connected to two connecting blocks 253. The two connecting blocks 253 extend to the inside of the two movable grooves 241 through two through grooves, and the two connecting blocks 253 are respectively fixedly connected to the two fixed blocks 242. The adjustment component 250 also includes two wrench grooves 254 respectively provided at both ends of the two-way threaded rod 251, and the inner walls of the two wrench grooves 254 are provided with cross grooves 255.

[0036] Use a hexagonal wrench, a cross screwdriver or a flat-blade screwdriver to insert the cross slot 255 and the wrench slot 254, and then rotate the bidirectional threaded rod 251 through the wrench slot 254 and the cross slot 255 to make the two connecting blocks 253 move away from each other, thereby driving the two fixing blocks 242 to disengage from the universal ball 220. The fixing block 242 will release the lock on the universal ball 220, and then push the universal ball 220 to move inside the universal mounting slot 210, thereby changing the direction of the screw mounting hole 230, and then re-lock the universal ball 220 by rotating the bidirectional threaded rod 251, and finally install the screw into the screw mounting hole 230 and drill the screw into the humerus to complete the installation of the locking steel plate.

[0037] The universal module 200 also includes two limit sleeves 260 which are respectively fixedly connected to the outer surface of the bidirectional threaded rod 251. The two limit sleeves 260 are respectively close to the two ends of the bidirectional threaded rod 251. The two limit sleeves 260 are both movably connected to the inside of the strip portion 110. The universal module 200 also includes two expansion grooves 270 which are respectively opened at the top and bottom of the universal mounting groove 210. The strip portion 110, the arc portion 120 and the nodule portion 130 are all made of titanium alloy material.

[0038] By setting two expansion grooves 270, the direction angle range of the screw can be made larger. By setting two limit sleeves 260, the bidirectional threaded rod 251 can be limited, making the bidirectional threaded rod 251 more stable. In addition, the titanium alloy has high strength and good corrosion resistance, which improves the overall strength.

[0039] The implementation principle of the embodiment of the present application is as follows: when in use, the staff uses a hexagonal wrench, a cross screwdriver or a flat-nose screwdriver to insert the cross slot 255 and the wrench slot 254, and then rotates the bidirectional threaded rod 251 through the wrench slot 254 and the cross slot 255, so that the two connecting blocks 253 move away from each other, thereby driving the two fixing blocks 242 to disengage from the universal ball 220, and the fixing block 242 will release the lock on the universal ball 220, and then push the universal ball 220 to move inside the universal mounting slot 210, thereby changing the direction of the screw mounting hole 230 , and then the universal ball 220 is locked again by rotating the bidirectional threaded rod 251, and finally the screw is installed into the screw mounting hole 230 and drilled into the humerus to complete the installation of the locking steel plate, so that the steel plate has fewer limitations and has more angles. The two expansion grooves 270 are provided to make the screw's orientation angle range larger, and the two limit sleeves 260 are provided to limit the bidirectional threaded rod 251, making the bidirectional threaded rod 251 more stable. In addition, the titanium alloy has high strength and good corrosion resistance, which improves the overall strength.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A universal locking steel plate for the proximal end of the humerus, comprising a main body module (100) and a plurality of universal modules (200), characterized in that: The main body module (100) comprises a strip-shaped portion (110), an arc-shaped portion (120) and a nodule portion (130), two ends of the arc-shaped portion (120) are respectively connected to the strip-shaped portion (110) and the nodule portion (130), and a plurality of universal modules (200) are respectively arranged inside the strip-shaped portion (110) and the nodule portion (130); The universal module (200) comprises a universal mounting groove (210) provided inside the strip portion (110), a universal ball (220) being movably connected inside the universal mounting groove (210), a screw mounting hole (230) being provided inside the universal ball (220), a fixing assembly (240) being provided on the inner wall of the universal mounting groove (210), the fixing assembly (240) being in contact with the outer surface of the universal ball (220), an adjustment assembly (250) being provided inside the strip portion (110), and the fixing assembly (240) being connected to the adjustment assembly (250).

2. The universal locking steel plate for the proximal humerus according to claim 1, characterized in that: The two fixing assemblies (240) each include a movable groove (241) formed on the inner wall of the universal mounting groove (210); the interiors of the two movable grooves (241) are movably connected with a fixing block (242); adjacent ends of the two fixing blocks (242) are provided with a clamping groove adapted to the outer surface of the universal ball (220); and adjacent ends of the two fixing blocks (242) are in contact with the outer surface of the universal ball (220) through the clamping groove.

3. The universal locking steel plate for the proximal humerus according to claim 2, characterized in that: The adjustment assembly (250) comprises a cylindrical through groove provided inside the strip portion (110), a bidirectional threaded rod (251) being rotatably connected inside the cylindrical through groove, two connecting grooves (252) being provided on the inner wall of the cylindrical through groove, the two connecting grooves (252) being respectively connected to the two movable grooves (241), the outer surface of the bidirectional threaded rod (251) being threadedly connected to two connecting blocks (253), the two connecting blocks (253) respectively extending to the inside of the two movable grooves (241) through the two through grooves, and the two connecting blocks (253) being respectively fixedly connected to the two fixed blocks (242).

4. The universal locking steel plate for the proximal humerus according to claim 3, characterized in that: The adjustment assembly (250) further comprises two spanner slots (254) respectively provided at two ends of the bidirectional threaded rod (251), and the inner walls of the two spanner slots (254) are both provided with a cross slot (255).

5. The universal locking steel plate for the proximal humerus according to claim 4, characterized in that: The universal module (200) further comprises two limiting sleeves (260) respectively fixedly connected to the outer surface of the bidirectional threaded rod (251), the two limiting sleeves (260) respectively being close to the two ends of the bidirectional threaded rod (251), and the two limiting sleeves (260) being movably connected to the inside of the strip portion (110).

6. The universal locking steel plate for the proximal humerus according to claim 5, characterized in that: The universal module (200) further comprises two expansion slots (270) respectively disposed at the top and bottom of the universal mounting slot (210).

7. The universal locking steel plate for the proximal humerus according to claim 6, characterized in that: The strip-shaped portion (110), the arc-shaped portion (120) and the node portion (130) are all made of titanium alloy material.

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