Patent ID: 7141050

Claim:
A catheter comprising: a catheter shaft of sufficient length to perform an endoscopic procedure in the biliary system and having a proximal end, a distal end, and a wire guide lumen extending through the shaft between a proximal wire guide port and a distal wire guide port; and a plurality of intermediate wire guide access ports located a not insubstantial distance distal of the proximal wire guide port and a not insubstantial distance proximal of the distal wire guide port, wherein a plurality of sleeves are slidably disposed along the catheter shaft, the plurality of sleeves comprising a first sleeve that is movable between a first position restricting access from exterior of the catheter through a first intermediate wire guide access port and a second position wherein access is not restricted through the first intermediate wire guide access port, and further comprising a second sleeve that is movable between a first position restricting access from exterior of the catheter through a second intermediate wire guide access port and a second position wherein access is not restricted through the second intermediate wire guide access port.