Solution Of Multi-nozzle Bio-3D Printing Technology Based On Pneumatic Control

With the improvement of people’s living standards and the improvement of science and technology,more and more people put forward higher and higher requirements for health and the treatment of injurious diseases and disability diseases.In recent years,great progress has been made in the treatment of diseases,such as the disability of human tissues and organs.In clinic,homologous transplantation,autologous transplantation,allogeneic transplantation and xenotransplantation are the most common treatments for diseases such as tissue and organ defects.However,there are still many problems that can not be ignored in traditional technology methods,such as insufficient donors,exclusion and ethics.In response to these problems,in 1987,the American Foundation Committee proposed the concept of regenerative medicine in tissue engineering.This concept is based on the rapid development of 3D printing technology at that time.Therefore,the core of tissue engineering technology is to construct tissue-like precursors in three-dimensional space using biological materials and cells as printing materials.In view of the growth of cell attachment and division,biological scaffolds are the focus of tissue engineering research.Biological three-dimensional printing technology is one of the main methods of artificial production of biological tissues and organs.It uses rapid prototyping technology to mix cells and media in a certain proportion into 3D printing materials.According to the three-dimensional model of the tissue or organ to be printed,the running path is generated by software processing,and then a replica which is very similar to the real object is constructed,and then it is cultured in a designated culture environment.At present,there are many institutions and colleges studying this kind of technology at home and abroad.However,due to the blockade and protection of technology,there is a high research threshold for the realization of this kind of technology,and the existing technology still has the problems of single printable material,high damage of printing mode,complex exploration of technological means and very expensive cost.In order to solve the above problems,this study proposes a solution of multi-nozzlebio-3D printing technology based on pneumatic control.It explores and improves the current mainstream bio-3D printing technology structure,circuit hardware,control software and other hardware and software aspects,which makes the technology more feasible in hardware and software solutions,greatly reduces the cost of system manufacturing solutions,and makes the system hardware and software implementation scheme public.Open,reduce the threshold of research and development of such technology in equipment,hoping to provide a reference for many domestic researchers in the field of equipment implementation.This topic will analyze the technical origin and choose the most realizable technical scheme.It will explore in detail the selection and proportion of biological materials,the design and evaluation of the pneumatic structure scheme of equipment,the design and evaluation of the drive control scheme of the underlying hardware,the control strategy of the upper computer and the communication scheme.It will explain and analyze the technical realization of each part concretely,and design it.After the completion of the preparation,how the user concentrates on and confidently explores the process method is planned in detail.