KEITH et al. V. COELHO - Page 14




          Interference No. 103,270                                                    



          and running back through the tube to the proximal end.  Below               
          the drawings is the following:                                              
                    when spring is compressed, by pulling on                          
                    wire, it opens fastening itself to the                            
                    Guide Catheter.                                                   
          CR-66, the next notebook page, states:                                      
                                         II.                                          
                    The concept is to use a balloon as an                             
                    anchoring device for the guide wire, to the                       
                    Guide Catheter. By inflating the balloon                          
                    the Guide wire is held in place within the                        
                    guide                                                             
                    catheter, therefor[e] allowing the                                
                    dilatation                                                        


                    catheter to be removed without an exchange                        
                    wire.                                                             
          There are three drawings, the first showing the distal end of               
          a hollow guide wire with a distal spring and an inflatable                  
          balloon on the wire, and the second and third showing the                   
          proximal end of the wire with an inflation valve in the bore                
          of the wire and a luer adapter with an "inflation hypo" and a               
          spring.  A note says that "Spring fastens luer adapter to end               
          of Hypo for inflation."  Below is stated:                                   
                    The inflation valve would seal off the                            
                    inner lumen of guide wire such that the                           
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