Biomedical Engineering Reference
In-Depth Information
while new capillary vessel inside the material is obvious. No signs of tissue necrosis are
(figure 6).
The sixth week
: There are a few parts with eosinophilic staining inside the material
disappears 6 weeks after operation, which shows crumbling phenomenon, while it's general
structure remains.Inflammatory cell infiltrate is visible 6 weeks after operation. Histocytes
gradually grow deep into the scaffold. No signs of tissue necrosis are.(figure 7,8)
The eighth week
: Histocytes grow more deeply into the scaffold. Inflammatory cell
infiltrate is visible, most of which are macrophages. Vessel hyperplasia reduces inside the
tissue, while hyperblastosis still obvious. No signs of tissue necrosis are.(figure 9,10)
Fig. 3. Fibroblast grows adherently on the surface of the material two weeks after operation.
The surrounding tissue hyperplasticly changes, inflammatory cell infiltrate is visible, most
of which are lymphocytes and macrophages. No signs of tissue necrosis are found.
（
×200
）
Fig. 4. Fibroin scaffold is eosinophilic staining. The surface is not regular while there are big
or small pores inside. Fibroblasts grow adherently on the surface of the material.
Inflammatory cell infiltrate is visible, most of which are lymphocytes and
macrophages.
（
×400
）
