Flake shape (woven/film/sponge), can be used to repair defects of  heart wall/esophagus/trachea/abdominal wall etc.

Thread/stripe/belt

The thread can be used as surgical suture. Band/strip-shaped materials woven with threads can be used to repair or replace damaged tendons, ligaments, etc. 

Tube

Tubular shape can be used to replace or repair tubular tissues such as blood vessels, esophagus, trachea, neural tubes and intestinal tissue etc.  

Transparent Film

Transparent material can be used as an artificial cornea, corneal cells can be cultured on it  before implanted. It can also be made into heart valves.