Patent ID: 9661989
Date: 2017-05-30
CPC Classifications: A61B

Claim:
1. An overtube device for use in intubating a human subject with an endoscope, the device comprising: an outer tube comprising a first elongated tube having a distal end, a proximal end, and a first handle disposed on the proximal end; and an inner tube comprising a second elongated tube having a distal end, a proximal end, a second handle disposed on the proximal end, and a cuff fixed to the distal end, the cuff comprising a proximal cylindrical portion and a distal conical portion, the conical portion reducing in diameter in a distal direction and adapted to seal around the endoscope inserted in the distal direction therethrough, wherein the overtube device and the endoscope form an intubatable assembly; wherein an outer diameter of the second handle is greater than an inner diameter of the outer tube to prohibit passage of the second handle into the first elongated tube of the outer tube; further wherein the inner tube in an assembled position is inserted through the outer tube such that the second elongated tube extends along a length of the device in the distal direction beyond the distal end of the first elongated tube and beyond a proximal end of the cylindrical portion, the cylindrical portion extends along a length of the device in the proximal direction beyond the distal end of the first elongated tube and in the distal direction beyond the distal end of the first elongated tube, and the conical portion extends along a length of the device in the distal direction beyond the distal end of the second elongated tube; further wherein the inner tube in an assembled position defines an elongated chamber concentric with the inner tube and the outer tube, wherein the chamber extends the entire length of the inner tube for removable insertion of an endoscope therein, further wherein the first handle has a proximal end and a distal end, the first handle comprises a connection portion disposed on the proximal end and a cylindrical base tube, the first elongated tube substantially extends into and firmly connects with the cylindrical base tube from the distal end, further wherein the first elongated tube does not contact the second handle when the inner tube is in an assembled position.