Endoscope accessory

摘要

This invention relates generally to an endoscope accessory. This device uses an overtube with an inflatable positioning ring that can be inflated after placement of the overtube just proximal to the tip of the endoscope or echoendoscope. A catheter with an occlusion balloon at its free endportion is carried by the overtube and extends beyond the tip of the endoscope, distal to the part of the body cavity that needs to be examined. Inflation of this balloon together with positioning ring creates a closed space within the body cavity that can be filled with air or water for improving the quality of the examination with regular endoscope of echoendoscope, respectively, while reducing the examination complications.

主权项

1. An endoscope accessory which comprises:
a flexible overtube having a distal endportion, a proximal endportion, and defining a central through passageway for receiving there within an endoscope or echoendoscope shaft and a catheter lumen in a wall portion of the overtube; a reclosable seam is provided along the length of the flexible overtube through which the endoscope or echoendoscope shaft is placed lengthwise within the flexible overtube; an inflatable positioning ring around the overtube at the distal end portion thereof, wherein the positioning ring includes two end faces internally oriented and lengthwise positioned adjacently to opposed adjacent edge portions of the reclosable seam, and wherein the two end faces abut when the positioning ring is inflated and the reclosable seam is closed, and are unabutted when the positioning ring is deflated and the reclosable seam is opened to place the endoscope or echoendoscope shaft lengthwise within the flexible overtube; a ring inflation tube in fluid communication with the positioning ring; an inflatable sealing collar within the overtube; a collar inflation tube in fluid communication with the sealing collar; and a catheter situated within the catheter lumen and having a free, independently positionable distal endportion that terminates in an inflatable occlusion balloon, wherein an inflation of the occlusion balloon the positioning ring and the sealing collar creates a closed space within a body cavity that is fillable with air and water for improving an examination with the endoscope or the echoendoscope shaft.