Sternum model device for median sternotomy incision

Abstract

The invention discloses a sternum model device for a median sternotomy incision. The sternum model device comprises a left sternum flap, a right sternum flap and an elastic separating mechanism capable of separating the left sternum flap and the right sternum flap towards the two sides, wherein wire passing channels for allowing binding wires to pass through are reserved in the periphery of the left sternum flap and the periphery of the right sternum flap. The device comprises the left half sternum flap and the right half sternum flap which are longitudinally cut in the center. The left half sternum flap and the right half sternum flap are controlled by the elastic separating mechanism to be in the open state, and the state is similar to that the sternum split in the center is pulled to the two sides by the muscle group of the chest. The sternum model device is used for teaching demonstration of the thoracic and cardiovascular surgical operation; with the model device, the operation process is close to the operation process of annularly binding the sternum for closing the sternotomy incision by using steel wires in the real operation. The operation process can be intuitively conveyed for learning of students or teaching of teachers in medical schools, and thus the understanding of the students is facilitated.

Description

technical field [0001] The invention is used in the technical field of demonstration models, and in particular relates to a sternum model device for median sternotomy incision. Background technique [0002] In the field of surgical treatment, median sternotomy approach or intercostal approach is often used for thoracic and cardiovascular surgery. When closing the sternotomy after surgery, 5-6 metal wires such as stainless steel sutures are usually used to bind the chest. [0003] Since the sternum, the left and right ribs, and the thoracic vertebrae form a complete thoracic barrel-shaped structure, which protects the internal organs, and at the same time connects with the upper limbs through the left and right sternoclavicular joints and the clavicle. When the median sternotomy is approached, the sternum is split in the middle and breaks the mechanical balance of the original bony structure of the thorax. The left and right sternal flaps are often stretched by the limbs or t...

AI Technical Summary

Problems solved by technology

[0004] There is no device in the prior art that can simulate the separation tension state of the sternal end after sternotomy, which brings a lot of inconvenience to the teaching and demonstrati

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