Flexible single lumen gas sealed access port for use during robotically assisted endoscopic surgical procedures

A gas sealed access port assembly for performing an endoscopic surgical procedure in a surgical cavity of a patient, comprising:

• a) a proximal housing including a central lumen providing gas sealed access to the surgical cavity, an inlet path for communicating with a source of pressurized gas, a tapered neck portion and an interior cavity accommodating an annular jet assembly for receiving pressurized gas from the inlet path to generate a gaseous seal within the tapered neck portion to maintain a stable pressure within the surgical cavity;
• b) an elongated tubular body extending from the tapered neck portion of the proximal housing in communication with the central lumen and including a flexible proximal body portion and a rigid distal body portion;
• and
• c) an obturator having an elongated shaft dimensioned and configured for insertion through the central lumen of the proximal housing to introduce the access port into the surgical cavity while maintaining the flexible proximal body portion in an unbent condition, wherein a proximal end portion of the rigid distal body portion is dimensioned for insertion into a distal end portion of the flexible proximal body portion.