Trocar sleeve

Abstract

A trocar sleeve that isolates the surgical device or movement thereof to inhibit or prevent an established non-jet streaming condition from becoming a jet streaming condition and a method of inhibiting or preventing a jet streaming condition from occurring due to instrument obstruction.

1 . (canceled) 
     
     
         2 . (canceled) 
     
     
         3 . (canceled) 
     
     
         4 . The method of insufflating a body cavity without damaging a tissue in the body cavity that might occur during transient conditions within the trocar sleeve comprising:
 directing a fluid flow from a first chamber in a trocar sleeve through ports in the trocar sleeve at a velocity less than a jet streaming velocity;   inserting or manipulating an instrument in a further chamber that is isolated from the first chamber to prevent the instrument therein from affecting the flow of fluid from the first chamber to thereby maintain the velocity of the fluid at less than the jet streaming velocity.   
     
     
         5 . The method of  claim 4  wherein the step of directing the instrument through the second chamber comprises directing the instrument through a lumen located in a member extending through the first chamber. 
     
     
         6 . The method of  claim 4  wherein the step of directing the instrument through the second chamber comprises directing the instrument through a further trocar sleeve remote from said trocar sleeve. 
     
     
         7 . (canceled) 
     
     
         8 . (canceled) 
     
     
         9 . (canceled)