Customized telescopic mechanical rib device

Abstract

The invention relates to a customized telescopic mechanical rib device. The device comprises a rib end, a sternum end and a connecting part; and the connecting part is arranged between the rib end andthe sternum end. According to the technical scheme, the radian of a fixing device is established according to the radian of symmetrical ribs on the opposite sides before an operation and conforms toa physiological curve of growth and development. According to the technical scheme, the length, the rib end diameter and the like of each part are all established according to a 3D printing model before an operation, and the matching degree with child patients of different ages is very good. The fixing device in the technical scheme is suitable for a single comminuted rib fracture, is suitable forfracture of a plurality of ribs, and is suitable for a patient with partial absence of a plurality of ribs.

Description

technical field [0001] The invention relates to a rib device, in particular to a customized stretchable mechanical rib device, which belongs to the technical field of medical devices. Background technique [0002] The lack of chest wall threatens the life of the patient and affects the quality of life. Common reasons for the absence of the chest wall: congenital absence of the chest wall; absence of the chest wall after tumor resection; comminuted and multiple rib fractures. The usual practice is to implant a bone plate to fix the broken rib or fix it to the sternum. The ribs after fixed connection are easily affected by external force, causing the connected ribs to be squeezed and deformed in the direction perpendicular to the thorax or twisted in the direction parallel to the thorax. Flail chest can cause chest wall floating, resulting in abnormal breathing, hypoxemia, and respiratory failure. Rib fractures destroy the balance of the chest wall, produce severe local pai...

AI Technical Summary

Problems solved by technology

But there are also the following disadvantages: (1) its degradation rate is faster than the healing time, and it is easy to produce sinus and body fluid; (2) the degradation product is acidic, resulting in aseptic inflammation in the implant environment; (3) the elastic modulus Quantity, bending strength, shear strength are relatively low, prone to fracture failure

Although the ribs do not carry heavy loads, the ribs are subject to torque in multiple directions due to the multi-layered intercostal muscles that insert into the ribs, so the force applied to the ribs is continuous and in multiple directions

Images