The printed the 3D-printer ears and bones, implanted mice formed blood vessels

For several years in the medicine use 3D-press to create a variety of human tissues, printed jaw of the skull, vertebrae. The main difficulty is the perception of the human body of alien objects. In the case of the boy, who was replaced by vertebrae, doctors have a positive perception due to the porous structure.

A similar technique was used at the University of Wake Forest. They combined bio-ink proprietary micro-channels in tissues, in order to achieve the formation of blood vessels in the ear and bone implanted animals.





More than ten years for researchers to create a system of Integrated Tissue and Organ Printing System - ITOP. Biodegradable polymers as lattice serve as the outer frame, which is poured in a water-based gels containing stem cells. These gels are optimized for cell growth, and to provide a new body provided with oxygen and nutrients to the micro-channels.

Auricles small size 3, 8 cm were implanted under the skin of laboratory mice. Two months later, there are signs of vascularization - the formation of blood vessels. That is, the body of animals received new organs for their.

The same experiment with muscular structures and the bone of the jaw, implanted rats. Five months later, vascularization was observed in bone.

ITOP himself printer can use data from CT and MRI studies of patients to make exact copies of the lost man nose or ear.













Source: geektimes.ru/post/271508/