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3D Printing Technology At The Service Of Health

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               3D Printing Technology: At The Service Of Health*

Tuesday, June 28, 2016

  The three-dimensional printing is booming in the field of medical.

  • Numerous applications exist to already right for the patient and the health care professional: production of expensive prosthesis, Tissue samples, and realization of models designed to prepare surgeries…
  •  Unfortunately, it will have to wait to consider printing a full body graft.

What is 3D printing and bio-printing?

The 3D printing based on two principles.

On one hand, it is controlled by a computer, which allows for unique and customized.

On the other hand, it functions by addition of material: the printer adds layer after layer of material to form a three-dimensional object, in contrast to machining a work piece based on the removal of material (one from a block of material that shape one size to get).

3D printing may be used as “inks” Plastics, polymers, resins, ceramics, or metals like titanium. Bio-printing involves using living material, usually the cells, instead of the inks.

Using a 3D printer, it is now possible to obtain complex living tissues such as skin, cartilage, and even liver tissue. For this, we use several toners kinds of “cartridges” that contain different types of cells and molecules, such as proteins, essential for cohesion between cells.

What applications in medicine?

For ten years, several types of applications emerge.

  • Shaping custom implantable prostheses
  • Surgeons have already successfully replaced in patients, the bone of jaw, and part of the skull or even a vertebra, with parts in titanium or resin, 3D printing has helped create a prosthesis perfectly adapted to the morphology of each patient. We are already considering using it to manufacture custom plaster or prostheses (finger, ear, member …) for amputees.
  • Make replicas to prepare complex interventions
  • Make replicas to prepare complex interventions A team of surgeons in Louisville hospital in the United States recently made a replica of the malformed heart of a baby of 14 months ,

Surgeons aim: to train on a model before operating the child. Prof. Samir Hamamah and his colleagues modeled with a 3D printer, human embryos created by in Vito fertilization (IVF). This allows clinicians to observe the embryo from all angles to select the most viable to implant them in the uterus and increase the chances of success of IVF.

  • Create the structure of a replacement organ.

Some research teams use 3D printing to create kinds of synthetic bio material scaffolding, adapted to the morphology of the patient, which are subsequently colonized by cells to reconstitute the organ. There was thus created portions of cartilage and even complete bladders located subsequently in patients.

What are the current researches?

Many research projects are underway in the field of 3D bio printing: skin, cornea, cartilage, liver … “The laser printing allows for very precise control of the spatial arrangement of cells,” says Fabien Guillemot team “tissue bio engineering “in Bordeaux.” These cells should communicate them to self-organize. This is a crucial step, very slowly. The aim of our research is to control this arrangement so that it runs smoothly. “First use envisioned for these printed fabrics: medical research.” With the bio-printed fabrics, we will be able test the efficacy of new drugs, the toxicity of certain substances, or even study the development of diseases,” Fabien is Guillemot enthusiasm. The Bordeaux team plans to recreate such tumors of patients with their own cancer cells and then test different therapeutic approaches and then administer the most effective.

When will appear the first printed complex organs?

Can you print a kidney or a heart to replace the defective organ of a patient? This horizon remains distant.

“These are complex organs, which contain a large number of cells to nature and the different functions. And the interactions between them are many. Besides, it would also be able to make the blood vessels in these organs, and nerves that make them work, says Fabien Guillemot. For all these reasons, we cannot consider printing a functional member for ten or twenty years. But he remains optimistic:” The bio-printing is the subject of considerable investment, public and private. The machines will certainly evolve and new opportunities will emerge in the coming years.”

published on

 Tuesday, June 28, 2016 – 16:28:11 [London Time]

URL : http://www.healthyeve.com/3d-printing-technology-service-health/

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