Patent ID: 7182752
Filing Date: 2007-02-27
Classification: A61B

Abstract:
1. A method for providing a pressurized insufflation fluid into a patient cavity and providing sealable access to the patient cavity during a procedure performed with a first surgical instrument, comprising the steps of: providing a trocar assembly including inner and outer tubular members each having a proximal end portion and a distal end portion, the inner and outer tubular members defining a passageway therebetween, the distal end portion of the inner tubular member and the distal end portion of the outer tubular member defining a distal trocar seal nozzle, wherein the distal trocar seal nozzle is in fluid communication with the passageway; introducing a pressurized fluid into the passageway; discharging the pressurized fluid from the trocar seal nozzle to form a wall of pressurized fluid to seal the trocar assembly during a surgical procedure performed therewith; introducing a first surgical instrument into the inner tubular member; and extending the surgical instrument through the wall of pressurized fluid and into the cavity of the patient for surgical use therewithin.