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A kind of individualized elbow joint stabilizer and its manufacturing method

A technology for elbow joints and stabilizers, applied in the field of individualized elbow joint stabilizers and its production, can solve the problems of patients’ tolerance to external fixators, aggravate elbow joint instability, and difficulty in manufacturing, etc., and achieve reduction Complications related to screw path-trajectory, reduction of operation time and blood loss, satisfactory effect on range of motion

Active Publication Date: 2022-04-26
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 placement of the arm of the external fixator will aggravate the instability of the elbow joint. At the same time, the complications related to the screw track-track and the patient's tolerance to the external fixator should not be ignored
In addition, the existing hinged external fixation brackets still have the disadvantages of complex structure, high cost, and difficult manufacture

Method used

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  • A kind of individualized elbow joint stabilizer and its manufacturing method
  • A kind of individualized elbow joint stabilizer and its manufacturing method
  • A kind of individualized elbow joint stabilizer and its manufacturing method

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Experimental program
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Effect test

Embodiment 1

[0032] Such as Figure 1 to Figure 3 As shown, the individualized elbow joint stabilizer of this embodiment includes a shaft part 1 for connecting the ulna and humerus and a fixing part 2 connected with the shaft part 1. There are more than two fixing parts 2 for passing through Screws secure the Individualized Elbow Stabilizer to the mounting hole 3 on the ulna. When the individualized elbow stabilizer is used to stabilize the elbow joint, after the surgical incision is placed, holes are pre-drilled on the ulna and humerus, the shaft part 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 elbow dislocation, and allow the ulna and ulna to be stabilized at an early stage. The relative rotation of the humerus is restored to the maximum...

Embodiment 2

[0048] Such as Figure 4 to Figure 6 As shown, the individualized elbow joint stabilizer of this embodiment is the same as the individualized elbow joint stabilizer of Embodiment 1 in main functional structure, the main difference is that the individualized elbow joint stabilizer of this embodiment consists of a connecting block 4 It is connected with 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 is used as the shaft part 1 . The connecting block 4 and the rod 5 of this embodiment can be manufactured separately, and then connected and combined to form an individualized elbow joint stabilizer, which is also simple and convenient to manufacture and low in cost, and the connecting block 4 with a block structure is used as the fixing part 2, The stability of the entire connect...

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Abstract

The invention discloses an individualized elbow joint stabilizer and a manufacturing method thereof. The individualized elbow joint stabilizer comprises a shaft part for penetrating and connecting the ulna and the humerus and a fixing part connected with the shaft part. The fixing part is provided with two Mounting holes above for screws to secure the Individualized Elbow Stabilizer to the ulna. The manufacturing method includes the steps of collecting patient CT image data and modeling to obtain a three-dimensional model of the elbow joint, printing with a 3D printing device to obtain a 1:1 model of the affected elbow joint, and manufacturing an individualized elbow joint stabilizer based on the model of the affected elbow joint. The invention is suitable for stabilizing the elbow joint in an internal fixation manner, and has the advantages of individualization, simple structure, low cost, easy assembly and disassembly, stable and reliable fixation, and reduced 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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Patent Type & Authority Patents(China)
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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