GI-View's Aer-O-Scope™ colonoscopy procedure works via a three simple phase process:
Introduction into the rectum The operator introduces the Aer-O-Scope™ into the rectum, and presses the forward button on the control panel. First the rectal balloon is inflated and then the scanner balloon with the embedded electro optical capsule is inflated.
Forward Motion - Towards the Ceacum Once both balloons are inflated, CO2 is used to insufflate the space between them. Because the rectal balloon is anchored against the anus and cannot be moved, the scanner balloon is propelled forward along the colon by the air pressure building up between the two balloons.
Pressure sensors within the workstation continuously measure the pressure inside and behind the scanner balloon. The workstation automatically controls the pressure in all compartments and ensures that the balloon moves forward at the lowest possible pressure. In addition, safety mechanisms limit pressure buildup within the colon in compliance with pressure levels applied by FDA cleard colonic insufflators used during CT colonography (virtual colonoscopy).
Backward Motion - Towards the Rectum Once the Aer-O-Scope™ reaches the cecum, the operator presses the scan button on the control panel, the CO2 behind the scanner balloon is vented out through the rectum, and CO2 is used to insufflate the space between the scanner balloon and the bottom of the cecum. The workstation now establishes higher pressure levels in front of the scanner balloon, thus propelling the balloon and capsule back towards the rectum. This "reverse motion" may be supplemented by the operator gently pulling on the supply cable.
At any time during the forward or reverse motion of the scanner balloon, the operator may press the pause or stop buttons. Pause can be used to gain a better look with the camera or to change the direction of balloon motion. Stop can be used to instantly deflate all compartments, for instance if the patient requests a rest.
While the Aer-O-Scope™ may perform viewing on its way in towards the ceacum, the more detailed viewing occurs on the way out when the colon in front of the camera is insufflated and the mucosal folds are thus flattened. If the operator notices something suspicious, he may take a snap shot by pressing the relevant button on the control panel. In any event, the entire examination is recorded on a CD for future review or consultation.
Note: The Aer-O-Scope™ is not for sale in the United States.
Caution: These statements have not been reviewed by the FDA.
