Anatomical fixation device for fractures of the styloid process of the ulna

Abstract

The application relates to an ulna process fracture anatomical fixation device for stably fixing an ulna process fracture, characterized in that the distal end of the fixation device is hook-shaped, and the hook-shaped part is provided with a screw hole; the proximal end of the fixation device is a straight steel plate, the straight steel plate is provided with a locking hole, and the proximal end and the distal end of the fixation device are connected through an arc-shaped structure. Compared with the prior art, the device has the advantages of simple structure, convenient use and the capability of fixing small fracture blocks.

Description

Technical Field

[0001] This application relates to a medical device, and more particularly to an internal fixation device for fractures. Background Technology

[0002] Ulnar styloid process fractures are very common clinically. Most patients can be treated conservatively, but if conservative treatment is ineffective, it may cause wrist pain and dysfunction, often requiring surgical treatment, specifically ulnar styloid process fixation. The most common method for fixing ulnar styloid process fractures during surgery is using tension band wire with two Kirschner wires; headless compression screws have also been reported. However, many studies report a high incidence of nonunion and bone resorption in patients using tension band wire fixation. Furthermore, compression screws are ineffective when the fracture fragment is small. In recent years, there have been reports of using conventional support plates to treat ulnar styloid process fractures, but this requires pre-bending and shaping a 2.4mm straight dynamic compression plate according to the distal ulna anatomy, making it inconvenient to use and unable to fix small fracture fragments. Therefore, the development of suitable ulnar styloid process fracture fixators remains necessary. Summary of the Invention

[0003] The purpose of this application is to provide a fixator for ulnar styloid process fractures, for stable fixation.

[0004] This application discloses an anatomical fixation device for ulnar styloid process fractures. The distal end of the fixation device is hook-shaped and has fine screw holes. The proximal end of the fixation device is a straight steel plate with locking holes. The proximal and distal ends of the fixation device are connected by an arc-shaped structure.

[0005] In a preferred embodiment, the number of locking holes is 2-5.

[0006] In a preferred embodiment, the screw hole is located at the apex of the hook-shaped portion.

[0007] In a preferred embodiment, the arcuate structure is configured to fit perfectly according to the anatomy of the ulnar styloid process.

[0008] In a preferred embodiment, the locking hole is provided with a corresponding number of standard screws for securing.

[0009] In a preferred embodiment, the screw hole is configured with an angled fine screw. The advantages of this invention are:

[0010] 1) The device of this utility model has a simple structure, is easy to use, and can also fix small bone fragments. Attached Figure Description

[0011] Figure 1This is a schematic diagram of the anatomical fixation device for ulnar styloid process fractures described in this utility model.

[0012] Explanation of reference numerals in the attached figures:

[0013] 1-Proximal end; 2-Locking hole; 3-Connecting part; 4-Screw hole; 5-Distal end; 6-Fine screw; 7-Standard screw. Detailed Implementation

[0014] After in-depth research and extensive screening, the inventors of this application have developed an anatomical fixation device for ulnar styloid process fractures. This device has a simple structure, is easy to use, and can also play a role in fixation when the fracture fragments are small.

[0015] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0016] Example

[0017] An embodiment of this utility model is as follows: Figure 1 The anatomical fixation device for ulnar styloid process fracture includes a hook-shaped distal end 5; a proximal end 1 configured as a straight plate and a connecting portion 3 connecting the proximal end 1 and the distal end 5, the connecting portion 3 being arc-shaped and configured according to the anatomical results of the ulnar styloid process; a screw hole 4 is provided on the top of the hook-shaped distal end 5, and a screw hole 2 is provided on the proximal end 1.

[0018] In this embodiment, a standard screw 7 is disposed on the fixing hole 2; a fine screw 6 is disposed on the screw hole 4. During implementation, the number of screws used can be selected according to the desired fixing effect. Optionally, in one embodiment, 2-5 fixing holes are provided.

[0019] Optionally, in one embodiment, the connecting portion 3 is made of a soft material for a better fit.

[0020] It should be noted that in this patent application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. In this patent application, if it refers to performing an action according to an element, it means performing the action at least according to that element, including two cases: performing the action only according to that element, and performing the action according to that element and other elements. Expressions such as "multiple," "repeatedly," and "various" include two, two times, two kinds, and more than two, more than two times, and more than two kinds.

[0021] All documents mentioned in this application are considered to be incorporated in their entirety into the disclosure of this application so that they can serve as a basis for modifications if necessary. Furthermore, it should be understood that after reading the foregoing disclosure of this application, those skilled in the art can make various alterations or modifications to this application, and these equivalent forms also fall within the scope of protection claimed in this application.

Claims

1. An anatomical fixation device for ulnar styloid process fractures, characterized in that, The distal end of the fixing device is hook-shaped, and the hook-shaped part is provided with a fine screw hole; the proximal end of the fixing device is a straight steel plate, and the straight steel plate is provided with a locking hole; the proximal end and the distal end of the fixing device are connected by an arc-shaped structure.

2. The anatomical fixation device for ulnar styloid process fractures according to claim 1, characterized in that, The number of locking holes is 2-5.

3. The anatomical fixation device for ulnar styloid process fractures according to claim 1, characterized in that, The screw hole is located at the apex of the hook-shaped portion.

4. The anatomical fixation device for ulnar styloid process fractures according to claim 1, characterized in that, The arc-shaped structure is configured to fit perfectly based on the anatomy of the ulnar styloid process.

5. The anatomical fixation device for ulnar styloid process fractures according to claim 1, characterized in that, The locking hole is equipped with a corresponding number of standard screws for fixing.

6. The anatomical fixation device for ulnar styloid process fractures according to claim 1, characterized in that, The screw hole is fitted with an angled fine screw.

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