A personalized and customized articular cartilage injury repair device based on 3D printing

Abstract

The invention discloses a personalized customized articular cartilage damage repair device based on 3D printing, which belongs to the technical field of medical devices. The device includes a female sleeve, a sub-sleeve and a movable rod, the side of the female sleeve is provided with a sub-sleeve, a movable rod is arranged between the female sleeve and the sub-sleeve, and the female sleeve and the sub-sleeve are respectively provided with a base plate and a clamping plate, The surfaces of the base plate and the card board are provided with wire routing grooves, and a fixing ring is sleeved in the wire routing groove, and the opposite and back sides of the base plate and the card plate are fixedly connected with connecting blocks. The inner surface is fitted with a cloth pad; the female sleeve and the sub-sleeve are movably connected by setting an active rod, and the female sleeve and the sub-sleeve are fixed on the side of the joint to form an exoskeleton structure. The auxiliary force can reduce the burden on the joints, and at the same time, it can ensure the mobility of patients with mild symptoms within the allowable range, and reduce the impact on the normal life of patients.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a 3D printing-based personalized customized articular cartilage damage repair device. Background technique [0002] There are many repair methods for articular cartilage damage, such as simple debridement surgery, radiofrequency ablation, chondrocyte transplantation, osteochondral transplantation, engineered cartilage, etc., many of which are still under research and lack of recognized exact and effective methods. The conventional conservative treatment of knee cartilage wear includes symptomatic treatment such as the application of anti-inflammatory analgesics, physiotherapy, acupuncture, plaster, etc. These treatments can temporarily relieve the adverse symptoms and achieve good therapeutic effects, but cannot prevent the deterioration of the condition. In more severe cases, surgery can sometimes be used. [0003] 1. In the prior art, in the process of arti...

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Problems solved by technology

[0003] 1. In the prior art, in the process of articular cartilage damage, it is necessary to fix the joints to different extents according to the degree of joint damage to prevent further damage. Common damage repair devices use plaster and other materials to directly fix the patient's limbs. In patients with severe disease, their joints can often still perform small range of activities, and the fixed structure affects the normal activities of patients with mild symptoms, and lacks the ability to assist in bearing force. It cannot replace the joints to bear external forces while allowing small range of activities.

[0004] 2. In the prior art, the joint damage repair device lacks a certain adjustment function, and it is difficult to modify it according to the characteristics of the patient's limbs, which often leads to low patient comfort and unsatisfactory fixation effect

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