Posterior Valve

• 1). Construct a paper pattern for the posterior valve of your patient. Allow an extra inch for folding.
  
  
• 2). Cut your 8 or 10 thickness crinoline in the posterior valve shape using your paper template. Supporting the patient face down by her pelvis and sternum, dip the crinoline into warm, liquid plaster cream.
  
  
• 3). Place the large felt pad on the inside of the valve. Fold the edges back, put the jacket on your patient and allow to set.
  
  

Anterior Valve

• 1). Construct a paper pattern for your patient's anterior valve. Allow an extra inch for folding.
  
  
• 2). Cut the 8 or 10 thickness crinoline for the anterior valve shape using your paper template. Supporting the patient face up by her neck and back, dip the crinoline into the warm, liquid plaster cream.
  
  
• 3). Place your large felt pad on the inside of the valve. Fold the edges back, put the jacket on your patient and allow to set.