Patent ID: 9597112
Date: 2017-03-21
CPC Classifications: A61B,A61M

Claim:
1. A surgical access device comprising: a housing having proximal and distal end portions, and defining a central passage; an access tube extending distally from the distal end portion of the housing and configured to extend at least partially though an incision formed in an abdominal wall of a patient, wherein the access tube is flexible with an expanded-diameter distal portion to inhibit removal of the access tube from the incision, and the access tube defines a central lumen in direct communication with the central passage of the housing; and a cover disposed over the proximal end portion of the housing, wherein the proximal end portion of the housing includes a pressurized fluid plenum defined between an upper nozzle insert and a lower nozzle insert, wherein the plenum is in fluid communication with at least one nozzle formed by the upper and lower nozzle inserts and configured to direct pressurized fluid from the plenum into the central lumen of the access tube to provide a gaseous seal around a surgical instrument inserted therethrough, and wherein the proximal end portion of the housing is provided with an aperture communicating with the central passage of the housing for gas recirculation and a passageway communicating with the central passage of the housing for pressure sensing and insufflation.