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.

I claim: 
     
         1 . A method of performing a surgical procedure, comprising:
 inserting a trocar sleeve into a body cavity, the trocar sleeve comprising an outer wall with the trocar sleeve having a first lumen, the first lumen further comprising a plurality of apertures in the-outer wall, the trocar sleeve further comprising an inlet port adapted to receive an insufflation gas, the inlet port in flow communication with the first lumen;   directing a flow of a received insufflation gas through the first lumen via the inlet port, where at least a portion of the received insufflation gas exits the first lumen and enters the body cavity through the plurality of apertures;   wherein the trocar sleeve is adapted such that instruments cannot be inserted into the first lumen; and   wherein the distal end of the trocar sleeve is inserted into the body, the distal end being closed such that gas cannot flow through it.   
     
     
         2 . The method of  claim 1 ,
 wherein the portion of the flow of received insufflation gas that exits the first lumen discharges from the plurality of apertures in a non-jet streaming condition.   
     
     
         3 . The method of  claim 1 ,
 wherein the plurality of apertures is regularly spaced from one another.   
     
     
         4 . The method of  claim 1 ,
 wherein the plurality of apertures is randomly spaced from one another.   
     
     
         5 . The method of  claim 1 , wherein the gas comprises carbon dioxide. 
     
     
         6 . The method of  claim 1 , wherein the trocar sleeve further comprises an inner wall wherein the first lumen is located between the outer wall and the inner wall and a second lumen is located within the inner wall, the method further comprising
 inserting and removing an instrument from the second lumen.   
     
     
         7 . The method of  claim 6 , wherein the inlet port does not supply any gas to the second lumen. 
     
     
         8 . The method of  claim 6 , wherein the second lumen is not used to deliver insufflation gas to the patient while the gas is flowing through the first lumen. 
     
     
         9 . The method of  claim 6 ,
 wherein the instrument comprises a trocar.   
     
     
         10 . The method of  claim 6 ,
 wherein the instrument comprises a surgical device.   
     
     
         11 . The method of  claim 6 ,
 wherein the instrument comprises a camera.   
     
     
         12 . The method of  claim 6 ,
 wherein the first lumen is coaxial with the second lumen.   
     
     
         13 . The method of  claim 6 ,
 wherein the portion of the flow of received insufflation gas that exits the first lumen discharges from the plurality of apertures in a non-jet streaming condition.   
     
     
         14 . The method of  claim 13 ,
 wherein the first lumen is coaxial with the second lumen.   
     
     
         15 . The method of  claim 14 ,
 wherein the instrument comprises a trocar.