The Method of Plastination is a relatively simple process designed to preserve the
body for educational and instructional purposes. Plastination, like many
revolutionary inventions, is simple in concept: 1. Embalming and Anatomical Dissection
The first step of the process involves halting decay by pumping formalin
into the body through the arteries. Formalin kills all bacteria and
chemically stops the decay of tissue. Using dissection tools, the skin,
fatty and connective tissues are removed in order to prepare the
individual anatomical structures. 2. Removal of Body Fat and Water
In the first step, the body water and soluble fats are dissolved from
the body by placing it into a solvent bath (e.g., an acetone bath).
3. Forced Impregnation
This second exchange process is the central step in Plastination. During
forced impregnation a reactive polymer, e.g., silicone rubber, replaces
the acetone. To achieve this, the specimen is immersed in a polymer
solution and placed in vacuum chamber. The vacuum removes the acetone
from the specimen and helps the polymer to penetrate every last cell.
4. Positioning
After vacuum impregnation, the body is positioned as desired. Every
single anatomical structure is properly aligned and fixed with the help
of wires, needles, clamps, and foam blocks.
5. Curing (Hardening)
In the final step, the specimen is hardened. Depending on the polymer
used, this is done with gas, light, or heat. Dissection and Plastination
of an entire body requires about 1,500 working hours and normally takes
about one year to complete.
More information on the plastination process and the idea behind plastination can be found here. |