Methods and devices for diagnostic and therapeutic interventions in the peritoneal cavity

Abstract

A novel approach to diagnostic and therapeutic interventions in the peritoneal cavity is described. More specifically, a technique for accessing the peritoneal cavity via the wall of the digestive tract is provided so that examination of and/or a surgical procedure in the peritoneal cavity can be conducted via the wall of the digestive tract with the use of a flexible endoscope. As presently proposed, the technique is particularly adapted to transgastric peritoneoscopy. However, access in addition or in the alternative through the intestinal wall is contemplated and described as well. Transgastric and/or transintestinal peritoneoscopy will have an excellent cosmetic result as there are no incisions in the abdominal wall and no potential for visible post-surgical scars or hernias.

1 - 22 . (canceled)  
     
     
         23 . An endoscopic access device comprising: 
 an elongated, hollow, flexible tube having an interior passage sized to receive and allow the passage of an endoscope, said tube having an open distal end;    first and second inflatable balloon structures defined adjacent said distal end of said tube; and    an inflation conduit extending respectively from said first and second balloon structures to respective inflation ports disposed adjacent a proximal end of said tube for selective, independent inflation and deflation of said balloon structures.    
     
     
         24 . A device as in  claim 23 , further comprising: 
 a valve housing defined at said proximal end of said tube for selectively defining a substantial fluid tight seal with an endoscope disposed therethrough.    
     
     
         25 . A device as in  claim 24 , further comprising a gas injection port in said valve housing for selectively injecting media along said tube for delivery to an area beyond said distal end.  
     
     
         26 . A device as in  claim 23 , wherein at least a distal portion of said tube is formed from a transparent material.  
     
     
         27 . A device as in  claim 26 , wherein substantially said entire tube is formed from a transparent material.  
     
     
         28 . A device as in  claim 23 , wherein said interior passage for receiving an endoscope has a diameter of at least about 10 mm.  
     
     
         29 . A device as in  claim 28 , wherein said interior passage has a diameter of between about 10 mm-20 mm.  
     
     
         30 - 35 . (canceled).