Bone plate structure capable of being adjusted universally

Abstract

The utility model relates to the field of medical instruments, in particular to a universally adjustable bone plate structure which comprises a bone plate body, a through hole is formed in the bone plate body, the through hole is a funnel-shaped through hole with the lower end diameter smaller than the upper end diameter, and a tension spring with the same shape as the funnel-shaped through hole is arranged in the funnel-shaped through hole. The bottom of the tension spring is fixedly welded with the bottom of the funnel-shaped through hole; a screw is arranged in an inner ring of the tension spring; a screw cap is arranged at the top end of the screw, the lower edge of the screw cap covers the upper surface of the tension spring, a screw upper section arranged in an inner ring of the tension spring is arranged below the screw cap, the upper half portion of the screw upper section is a threaded section, the threaded section and the inner ring of the tension spring are installed in a threaded fit mode, and the lower half portion of the screw upper section is a smooth section. The bone plate has the advantages that the bone plate is simple in structure and easy to install, due to the design of the tension spring, the bone plate can be prevented from excessively extruding bones, and growth of periosteum is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a bone plate structure that is omnidirectionally adjustable. Background Technology

[0002] Current medical treatments use screws and bone plates to fix the fracture position of patients. Bones are living things, and they will change during the growth and healing process. Patients also need some rehabilitation training to help them recover. During rehabilitation training, because the position of existing screws and bone plates is relatively fixed after installation, the bone plates will inevitably exert excessive pressure on the bone, which is not conducive to the growth of the periosteum after surgery and will slow down the healing of the bone. Utility Model Content

[0003] The technical problem to be solved by this utility model is: in order to overcome the problem that the position of existing screws and bone plates is relatively fixed after installation, which is not conducive to the growth of the periosteum after surgery and will slow down the healing of the bone, a bone plate structure that can be adjusted in all directions is provided.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a bone plate structure that can be adjusted in all directions, including a bone plate body, a through hole on the bone plate body, the through hole being a funnel-shaped through hole with a lower diameter smaller than the upper diameter, a tension spring with the same shape as the funnel-shaped through hole being set in the funnel-shaped through hole, the bottom of the tension spring being welded and fixed to the bottom of the funnel-shaped through hole, and a screw being set in the inner ring of the tension spring;

[0005] The top of the screw is the screw cap, the lower edge of which covers the upper surface of the tension spring. Below the screw cap is the upper section of the screw, which is located in the inner ring of the tension spring. The upper half of the upper section of the screw is a threaded section, which is installed in conjunction with the thread of the inner ring of the tension spring. The lower half of the upper section of the screw is a smooth section.

[0006] Below the upper section of the screw is the lower section of the screw, and the lower section of the screw has external threads on its outside.

[0007] Furthermore, the bottom ring of the tension spring is welded and fixed to the bottom of the funnel-shaped through hole, and the lowest point of the bottom of the tension spring is flush with or higher than the bottom of the funnel-shaped through hole.

[0008] Furthermore, the length ratio of the threaded section to the smooth section of the upper part of the screw is 1:1, and each of them occupies 1 / 2 of the height of the tension spring.

[0009] Furthermore, there is a distance between the top of the tension spring and the upper end of the funnel-shaped through hole, which is sufficient to accommodate the screw cap on the screw.

[0010] Furthermore, the shape of the smooth section matches the shape of the lower half of the inner coil of the tension spring, which serves to limit and guide the movement of the screw.

[0011] The beneficial effects of this utility model are: the universally adjustable bone plate structure of this utility model has a simple structure and is easy to install. The design of the tension spring can avoid excessive compression of the bone plate on the bone, which is conducive to the growth of the periosteum after surgery, thereby enhancing the bone's healing ability and accelerating the patient's recovery.

[0012] Tension springs can also provide a certain amount of cushioning force when the bone plate is compressed, providing an extra layer of protection for the patient. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a bottom view of the present invention;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 yes Figure 2 Sectional view at point AA;

[0017] Figure 4 This is a schematic diagram of the structure of this utility model after it is installed with screws;

[0018] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0019] In the diagram: 1. Bone plate body, 2. Funnel-shaped through hole, 3. Tension spring, 4. Screw cap, 5. Upper part of screw, 6. Lower part of screw, 51. Threaded section, 52. Smooth section. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Figure 1 and Figure 5The illustrated omnidirectional adjustable bone plate structure includes a bone plate body 1. The bone plate body 1 has a through hole, which is a funnel-shaped through hole 2 with a lower diameter smaller than its upper diameter. A tension spring 3, with the same funnel shape as the funnel-shaped through hole 2 and a lower diameter smaller than its upper diameter, is installed within the funnel-shaped through hole 2. The bottom of the tension spring 3 is welded and fixed to the bottom of the funnel-shaped through hole 2. To ensure sufficient movement space between the tension spring 3 and the funnel-shaped through hole 2, only the bottommost coil (layer) of the tension spring 3 is welded and fixed to the bottom of the funnel-shaped through hole 2. Figure 3 The black area at the bottom of the tension spring 3 is the welding point; at the same time, to prevent the bottom of the tension spring 3 from protruding from the bone plate body 1 and injuring the patient, the lowest point of the bottom of the tension spring 3 is level with or higher than the bottom of the funnel-shaped through hole 2. Here, "higher" is a reference. Figure 4 The bottom of the tension spring 3 should be above the bottom of the funnel-shaped through hole 2.

[0022] A screw is installed in the inner ring of the tension spring 3, with a screw cap 4 at the top. The lower edge of the screw cap 4 covers the upper surface of the tension spring 3. This design is also to protect the patient and prevent the tension spring 3 from protruding excessively and injuring the patient. Below the screw cap 4 is the upper section 5 of the screw, which is located in the inner ring of the tension spring. The upper half of the upper section 5 is a threaded section 51, which is installed in conjunction with the thread of the inner ring of the tension spring 3. The lower half of the upper section 5 is a smooth section 52. In the figure, the length ratio of the threaded section 51 to the smooth section 52 of the upper section 5 is 1:1. Each of them occupies 1 / 2 of the height of the tension spring 3, and the shape of the smooth section 52 matches the shape of the lower half of the inner ring of the tension spring 3, both being funnel-shaped with a lower diameter smaller than the upper diameter. Part 5 adopts a two-section design, which allows for omnidirectional movement while ensuring that the screw can be fastened to the tension spring 3. The omnidirectional movement is achieved by the tension spring 3 where the smooth section 52 is located. A small amount of space is left between the funnel-shaped through hole 2, the tension spring 3 and the smooth section 52, allowing for non-tight fit installation. The movement of the bone or the lifting of the screw, the tension spring 3 being stretched by the screw, or the shaking of the screw or the tension spring 3 being slightly wobbled back and forth and left and right, can cause the screw to wobble slightly. The wobbling range of the screw is -15° to 15°, that is, the angle between the axis of the screw and the horizontal direction of the bone plate body 1 is -15° to 15°. Below the upper section 5 of the screw is the lower section 6 of the screw. The lower section 6 of the screw has external threads on the outside. The external threads are not shown in the figure. The external threads are existing conventional self-tapping threads used for fastening with the bone.

[0023] There is a distance between the top of the tension spring 3 and the upper end of the funnel-shaped through hole 2, which can accommodate the screw cap 4 on the screw. The protrusion of the screw cap 4 is housed in the bone plate body 1 to prevent the screw cap 4 from injuring the patient during use.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A omnidirectionally adjustable bone plate structure, comprising a bone plate body, wherein the bone plate body has through holes, characterized in that: The through hole is a funnel-shaped through hole with a lower diameter smaller than the upper diameter. A tension spring with the same shape as the funnel-shaped through hole is installed in the funnel-shaped through hole. The bottom of the tension spring is welded and fixed to the bottom of the funnel-shaped through hole. A screw is installed in the inner ring of the tension spring. The top of the screw is the screw cap, the lower edge of which covers the upper surface of the tension spring. Below the screw cap is the upper section of the screw, which is located in the inner ring of the tension spring. The upper half of the upper section of the screw is a threaded section, which is installed in conjunction with the thread of the inner ring of the tension spring. The lower half of the upper section of the screw is a smooth section. Below the upper section of the screw is the lower section of the screw, and the lower section of the screw has external threads on its exterior.

2. The omnidirectionally adjustable bone plate structure according to claim 1, characterized in that: The bottom ring of the tension spring is welded and fixed to the bottom of the funnel-shaped through hole. The lowest point of the bottom of the tension spring is flush with or higher than the bottom of the funnel-shaped through hole.

3. The omnidirectionally adjustable bone plate structure according to claim 1, characterized in that: The length ratio of the threaded section to the smooth section of the upper part of the screw is 1:1, and each of them occupies 1 / 2 of the height of the tension spring.

4. The omnidirectionally adjustable bone plate structure according to claim 1, characterized in that: There is a distance between the top of the tension spring and the upper end of the funnel-shaped through hole, which is sufficient to accommodate the screw cap on the screw.

5. The omnidirectionally adjustable bone plate structure according to claim 1, characterized in that: The smooth section has a shape that matches the lower half of the inner coil of the tension spring, and it serves to limit and guide the movement of the screw.

Images