Biliary catheter systems including stabilizing members
First Claim
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1. A biliary catheter system, comprising:
- an endoscope having a working channel formed therein; and
an endoscopic instrument disposed in the working channel, the endoscopic instrument having a tool channel formed therein, a distal end, and a plurality of stabilizing members each extending through the endoscopic instrument and extending from the distal end, wherein the plurality of stabilizing members are configured to surround the ampulla of Vater during an endoscopic intervention;
wherein a proximal end of each of the plurality of stabilizing members is accessible for independent manipulation of each stabilizing member.
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Abstract
Medical devices including devices and systems for endoscopic interventions that may access the biliary tree. An example biliary catheter system may include an endoscope having a working channel formed therein. An endoscopic instrument may be disposed in the channel. The endoscopic instrument may have a tool channel formed therein, a distal end, and a plurality of stabilizing members extending from the distal end. The plurality of stabilizing members may be configured to surround the ampulla of Vater during a biliary tract intervention.
82 Citations
20 Claims
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1. A biliary catheter system, comprising:
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an endoscope having a working channel formed therein; and an endoscopic instrument disposed in the working channel, the endoscopic instrument having a tool channel formed therein, a distal end, and a plurality of stabilizing members each extending through the endoscopic instrument and extending from the distal end, wherein the plurality of stabilizing members are configured to surround the ampulla of Vater during an endoscopic intervention; wherein a proximal end of each of the plurality of stabilizing members is accessible for independent manipulation of each stabilizing member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A stabilization tool for cannulation of an ampulla of Vater of a patient, the system comprising:
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an endoscopic instrument configured to be disposed in a channel of an endoscope, the endoscopic instrument having a cannulation tool channel formed therein, a proximal end, a distal end, and a stabilizing assembly extending axially through the endoscopic instrument, the stabilizing assembly including three or more stabilizing members all extending from the proximal end to the distal end and extending from within the distal end for stabilizing the endoscopic instrument relative to the ampulla of Vater during a biliary tract intervention; wherein the stabilizing members are arranged so as to surround the ampulla of Vater during the intervention; and a cannulation tool disposed in the cannulation tool channel. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method for cannulation of an ampulla of Vater of a patient, the method comprising:
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providing an endoscope having a channel formed therein; advancing the endoscope to a position adjacent to the ampulla of Vater; advancing a stabilization and cannulation tool through the channel of the endoscope, the tool comprising; an endoscopic instrument having a cannulation tool channel formed therein, a distal end, and a stabilizing assembly including three or more stabilizing members disposed within the endoscopic instrument, and a cannulation tool disposed in the cannulation tool channel; extending distal ends of the three or more stabilizing members from the distal end of the endoscopic instrument so that the stabilizing members surround and stabilize the ampulla of Vater relative to the endoscopic instrument, while maintaining proximal ends of the three or more stabilizing members within the endoscopic instrument; and delivering the cannulation tool to the ampulla of Vater. - View Dependent Claims (20)
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Specification