Personalized customization articular cartilage injury repair device based on 3D printing

Abstract

The invention discloses a personalized customization articular cartilage injury repair device based on 3D printing, and belongs to the technical field of medical instruments. The device comprises a mother sleeve, a son sleeve and a movable rod; the son sleeve is arranged on the side surface of the mother sleeve; the movable rod is arranged between the mother sleeve and the son sleeve; the mother sleeve and the son sleeve are respectively provided with a base plate and a clamping plate; wiring grooves are formed on the surfaces of the base plates and the surfaces of the clamping plates; fixed rings are sleeved with the wiring grooves; the opposite surfaces of both the base plates and the clamping plates are fixedly connected with connecting blocks; and cloth pads are attached to the inner surfaces of the mother sleeve and the son sleeve. The mother sleeve and the son sleeve are movably connected by arranging the movable rod, the device is fixed on the side surface of a joint by utilizing the mother sleeve and the son sleeve to form an exoskeleton structure, and an auxiliary acting force is provided in joint movement through a tensile force and a thrust of a tension rod, so that the effect of relieving joint burdens is achieved, meanwhile, the movement capacity of a patient with mild symptoms within an allowable range can also be guaranteed, and the influence on the normal life of a patient is reduced.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a 3D printing-based personalized and customized articular cartilage damage repair device. Background technique [0002] There are many ways to repair articular cartilage damage, such as simple debridement surgery, radiofrequency ablation, chondrocyte transplantation, osteochondral transplantation, and engineered cartilage repair, etc. Many of them are still under research, and there is no recognized effective way. Conventional conservative treatment for knee cartilage wear includes anti-inflammatory painkillers, physical therapy, acupuncture, plaster and other symptomatic treatments. These treatments can temporarily relieve adverse symptoms and achieve better therapeutic effects, but cannot prevent the deterioration of the condition. In severe cases, surgery may sometimes be used. [0003] 1. In the prior art, in the process of articular cartilage damage, it ...

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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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