Individualized elbow joint stabilizer and preparation method thereof

An elbow joint and stabilizer technology is applied in the field of individualized elbow joint stabilizer and its production, which can solve the problems of the patient's external fixation tolerance not being ignored, aggravating the instability of the elbow joint, and being difficult to manufacture, etc. Preoperative design and surgical simulation efficiency, reduced operation time and blood loss, and satisfactory results in range of motion

Active Publication Date: 2020-03-31
XIANGYA HOSPITAL CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of these approaches achieved the desired goal of reliably maintaining joint stability and concentric anatomical reduction while allowing early maximal range of motion.
Theoretically, the hinged external fixator is the closest to this goal, but it is still difficult to restore the precise consistency of the rotation axis, and even the misalignment caused by the inaccurate

Method used

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  • Individualized elbow joint stabilizer and preparation method thereof
  • Individualized elbow joint stabilizer and preparation method thereof
  • Individualized elbow joint stabilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0031] Example 1:

[0032] Such as Figure 1 to Figure 3 As shown, the individualized elbow joint stabilizer of this embodiment includes a shaft 1 for connecting the ulna and humerus and a fixing part 2 connected with the shaft 1. The fixing part 2 is provided with two or more for passing through The screw fixes the individualized elbow joint stabilizer to the mounting hole 3 on the ulna. When the personalized elbow joint stabilizer is used to stabilize the elbow joint, after the surgical incision is placed into the incision, the ulna and humerus are pre-drilled, and the shaft 1 is inserted into the holes on the ulna and humerus, and then each installation hole A screw is inserted in 3 to fix the fixed part 2 to the ulna, which can stably and reliably fix the individualized elbow joint stabilizer, keep the elbow joint stable and concentric anatomical reduction, prevent dislocation of the elbow joint, and allow the ulna and The relative rotation of the humerus is restored to its ...

Example Embodiment

[0047] Example 2:

[0048] Such as Figure 4 to Figure 6 As shown, the individualized elbow joint stabilizer of this embodiment has the same main function and structure as the individualized elbow joint stabilizer of Embodiment 1. The main difference is that the individualized elbow joint stabilizer of this embodiment consists of a connecting block 4 It is connected to a rod 5, the connecting block 4 is used as the fixed part 2, the rod 5 includes a curved section 51 and a straight rod section 52 connected to each other, the curved section 51 is connected with the connecting block 4, and the straight rod section 52 serves as the shaft 1. The connecting block 4 and the rod 5 of this embodiment can be separately manufactured, and then connected and combined to form an individualized elbow joint stabilizer, which is also simple and convenient to manufacture, low in cost, and uses the block-shaped connecting block 4 as the fixing part 2. The stability of the entire connection to the...

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Abstract

The invention discloses an individualized elbow joint stabilizer and a preparation method thereof. The individualized elbow joint stabilizer includes a shaft part used for penetrating an ulna and a humerus and a fixing part connected to the shaft part, and the fixing part is provided with two or more installation holes used for passing through screws to fix the individualized elbow joint stabilizer to the ulna. The preparation method includes the steps of collecting CT image data of a patient and performing modeling to obtain a three-dimensional model of an elbow joint, performing printing byusing a 3D printing device to obtain a 1:1 elbow joint model of the patient, and preparing the individualized elbow joint stabilizer based on the elbow joint model of the patient. The stabilizer is suitable for stabilizing the elbow joint by internal fixation, and has the advantages of individualization, a simple structure, low costs, easy loading and unloading, stable and reliable fixation, and areduced occurrence of complications.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an individualized elbow joint stabilizer and a manufacturing method thereof. Background technique [0002] After the elbow joint injury occurs to the patient, due to the destruction of the stability mechanism of the elbow joint, such as bony structure, muscle, joint capsule, and ligament complex (especially the ulnar head of the lateral collateral ligament, LUCL), joint instability, easy dislocation, trauma Arthritis, stiffness, heterotopic ossification, neurological symptoms and other complications, the treatment is difficult, the prognosis is poor, and the patient satisfaction rate is low. These injuries are currently mainly surgical operations, generally including open reduction and internal fixation of fractures, ligament repair or reconstruction and postoperative fixation combined. However, surgical treatment often cannot solve the problem of elbow instability. Some...

Claims

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Application Information

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IPC IPC(8): A61B17/68
CPCA61B17/683A61B2017/00526A61B2017/00707A61B2017/00792
Inventor 林涨源彭江南张亮
Owner XIANGYA HOSPITAL CENT SOUTH UNIV
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