Multi-lumen endoscopic catheter

A catheter assembly for advancement and manipulation through the accessory channel of an endoscope into a body passage within the gastrointestinal system, the catheter assembly comprising:

• an elongate catheter body having a proximal end and a distal end having a distal tip, the distal tip having an planar portion disposed perpendicular to the long axis of the catheter body, and a beveled planar portion extending proximally from the planar portion;
• a first elongate lumen extending from the proximal end to the distal end of the catheter body, the first elongate lumen configured for receiving a guide wire and having an entry port at the proximal end of the catheter body and an exit port at the distal tip of the catheter body;
• a second elongate lumen extending from the proximal end to a port in the distal tip of the catheter body, the second elongate lumen being configured for injection of tracer dye out the port in the distal tip of the elongate catheter body, such that tracer dye may be released from the distal tip of the elongate catheter body while a guide wire remains in the first lumen;
• and
• a third elongate lumen extending from the proximal end of the catheter body to a position adjacent the distal end of the catheter body, the third lumen being configured for conducting a procedure other than guide wire placement or trace dye injection;
• and
• wherein catheter assembly further comprises an inflatable balloon disposed about the catheter body proximally from the distal end, and wherein the catheter assembly includes a port disposed at the end of the third lumen and exiting into the balloon such that injection of a fluid into the third lumen inflates the balloon.

A catheter assembly for advancement and manipulation through the accessory channel of an endoscope into a body passage within the gastrointestinal system, the catheter assembly comprising:

• an elongate catheter body having a proximal end and a distal end having a distal tip, the distal tip having an planar portion disposed perpendicular to the long axis of the catheter body, and a beveled planar portion extending proximally from the planar portion;
• a first elongate lumen extending from the proximal end to the distal end of the catheter body, the first elongate lumen configured for receiving a guide wire and having an entry port at the proximal end of the catheter body and an exit port at the distal tip of the catheter body;
• a second elongate lumen extending from the proxi catheter body, the second elongate lumen being configured for injection of tracer dye out the port in the distal tip of the elongate catheter body, such that tracer dye may be released from the distal tip of the elongate catheter body while a guide wire remains in the first lumen;
• and
• a third elongate lumen extending from the proximal end of the catheter body to a position adjacent the distal end of the catheter body, the third lumen being configured for conducting a procedure other than guide wire placement or trace dye injection;
• and
• wherein the third lumen extends to a position adjacent the distal end of the catheter body, and wherein an electrosurgical cutting element forming a sphinctertome/papillotome is disposed in the third lumen.

A catheter assembly intended for advancement and manipulation through the accessory channel of an endoscope into a body passage within the gastrointestinal system, said catheter assembly comprising:

• a substantially cylindrical, flexible catheter body;
• said catheter body having a proximal end and a beveled distal tip and at least two independent lumens extending lengthwise therebetween, each said lumen having an entry port at the proximal end of the catheter body and an exit port at said distal tip, each said exit port facing generally axially of the catheter body;
• and
• wherein said catheter body further comprises a third independent lumen extending lengthwise thereof, an inflatable, radially expandable dilation balloon disposed adjacent said distal tip and an exit port for said third independent lumen establishing communication with the interior of the balloon.

A catheter assembly intended for advancement and manipulation through the accessory channel of an endoscope into a body passage within the gastrointestinal system, said catheter assembly comprising:

• a substantially cylindrical, flexible catheter body;
• said catheter body having a proximal end and a beveled distal tip and at least two independent lumens extending lengthwise therebetween, each said lumen having an entry port at the proximal end of the catheter body and an exit port at said distal tip, each said exit port facing generally axially of the catheter body;
• and
• wherein said beveled distal tip comprises a first, acutely angled, planar portion and a second planar portion distally of the first, acutely angled planar portion and in disposed in contact with the first acutely angled planar portion, said second planar portion being perpendicularly disposed with respect to the long axis of the catheter body, wherein one of said exit ports exits substantially through the first planar portion and the other of said lumens exits substantially through the second planar portion.

A catheter assembly for advancement and manipulation through the accessory channel of an endoscope into a body passage within the gastrointestinal system, the catheter assembly comprising:

• an elongate catheter body having a proximal end and a distal end;
• a first elongate lumen extending from the proximal end to the distal end of the catheter body, the first elongate lumen configured for receiving a guide wire and having an entry port at the proximal end of the catheter body and an exit port the distal end of the catheter body;
• a second elongate lumen extending from the proximal end to the distal end of the catheter body, the second elongate lumen being configured for injection of tracer dye out the distal end of the elongate catheter body, such that tracer dye may be released from the distal end of the elongate catheter body while a guide wire is disposed in the first lumen;
• and
• a third elongate lumen extending from the proximal end of the catheter body toward the distal end of the catheter body, the third lumen having an electrosurgical tissue cutting instrument disposed therein.

A catheter assembly for advancement and manipulation through the accessory channel of an endoscope into a body passage, the catheter assembly comprising:

• an elongate catheter body having a proximal end and a distal end having a distal tip;
• first, second and third lumens formed within the catheter body, each of the first, second and third lumens extending from respective ports formed adjacent the proximal end and toward the distal end, the first and second lumens terminating in ports at the distal tip;
• and
• electrosurgical tissue cutting means disposed in the third lumen for selectively cutting tissue, the tissue cutting means forming a papillotome/sphinctertome.