Patent ID: 11871900
Assignee: UNIVERSITÀ DEGLI STUDI DI SIENA
Field: Medical technology (Instruments)
Classification: CPC A  B  G | IPC A  B  G

Claim 13:
14. The instrument (5) according to claim 13, wherein:
said inflation/deflation valve assembly (34) is arranged to inflate said first and second gas-inflatable balloons (20, 20′) up to respective initial pressures (P01,P02) different from each other such that said first and second gas-inflatable balloons (20, 20′) have respective initial radiuses (R1,R2) equal to each other;
said processing unit (60) is configured to
compute a compliance parameter (Ks) of said wall (90) according to the formula:, Ks
  =
  
   
    
     F
     ⁢
     1
    
    -
    
     F
     ⁢
     2
    
   
   
    
     
      F
      2
     
     
      π
      ⁢
      
       P
       
        o
        ⁢
        2
       
      
      ⁢
      
       R
       2
      
     
    
    -
    
     
      F
      1
     
     
      π
      ⁢
      
       P
       
        o
        ⁢
        1
       
      
      ⁢
      
       R
       1
      
     
    
   
  
 

where
F1 and F2 are forces obtained from said first and second contact force signals (54,54′), respectively;
Po1 and Po2 are said initial gas pressure within said first and second gas-inflatable balloons (20,20′), respectively;

generate also a compliance signal (55) responsive to said calculated compliance parameter (Ks);, wherein said contact force-value notification device (70) is configured to receive and to notify also said compliance signal (55) to said user.