Today, cardiovascular disease remains one of the major causes of global death. Medical researchers have been trying to develop new solutions using 3D printing techniques to treat a large number of cardiovascular patients.
In common surgical procedures associated with cardiovascular disease, including coronary artery bypass surgery, doctors often use vascular grafts. The role of this vascular graft is to permanently change the patient's blood flow route by attaching to a blocked or unhealthy vessel. Although this method works well, the premise is that doctors can find existing blood vessels available for transplant in patients. Otherwise, it is very difficult to find suitable vessels to be transplanted from outside.
Recently, scientists at Shanghai University's Rapid Manufacturing Engineering Center have developed a synthetic vascular graft. They combine micro-imprint printing with electro-spinning technology to create synthetic blood vessels that can replace blood vessels in patients or donors ' bodies for coronary artery bypass surgery. Electro-spinning, in fact, refers to the technology of using charge to guide liquid input.
This synthetic blood vessel has a three-layer structure and is composed of a variety of materials that have mechanical strength or can promote the growth of new cells. However, this type of 3D printing of vascular function is still relatively limited, and can not completely replace the human body of the original blood vessels ... So for a while, the doctor is going to have to do another surgery and install a new synthetic blood vessel or a suitable human primary blood vessel.