초록 ▼

An apparatus and method for separating a first layer of tissue from a second layer of tissue. A supporting part extends into the interior of the balloon during inflation to provide support for the balloon. The supporting part is retracted to a position outside the interior of the balloon after infla

An apparatus and method for separating a first layer of tissue from a second layer of tissue. A supporting part extends into the interior of the balloon during inflation to provide support for the balloon. The supporting part is retracted to a position outside the interior of the balloon after inflating the balloon. An endoscope is then inserted into the interior of the balloon. The endoscope is moved within the interior of the balloon to change the field of view of the endoscope.

대표청구항 ▼

[ We claim:] [1.] A device for separating tissue layers, comprising:a delivery device having an inflation port;a balloon having an interior;a fluid path fluidly coupling the inflation port and the interior of the balloon;an outer cannula having a distal end and a proximal end, the balloon being moun

[ We claim:] [1.] A device for separating tissue layers, comprising:a delivery device having an inflation port;a balloon having an interior;a fluid path fluidly coupling the inflation port and the interior of the balloon;an outer cannula having a distal end and a proximal end, the balloon being mounted to the distal end of the outer cannula;an inner cannula at least partially disposed within the outer cannula, the inner cannula having a supporting portion movable between an extended position relative to the outer cannula, in which the supporting portion is positioned within the interior of the balloon, and a retracted position relative to the outer cannula, in which the supporting portion is positioned outside the interior of the balloon, wherein the inner cannula is slidably coupled to the outer cannula so that the supporting portion is movable between the retracted position and the extended position relative to the interior of the balloon, and wherein at least one of the inner and outer cannulas is mounted to the delivery device; andan insert, wherein the inner cannula is a portion of the insert, wherein the outer cannula has an interior and is mounted to the delivery device, the delivery device includes a port leading to the interior of the outer cannula, and the insert passes through the port, and wherein the insert includes an opening and a lock, the opening being adapted to receive an endoscope and the lock being movable between a locked position, in which the endoscope is locked to the insert with a substantially fluid tight seal, and an unlocked position, in which the endoscope is unlocked with respect to the insert so that the endoscope is slidably movable relative to the insert.