Methods and Devices for Accessing Anatomic Structures
First Claim
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1. A method for performing endoscopic retrograde cholangiopancreatography, comprising:
- providing an endoscope having a proximal and distal end and an instrument channel, the instrument channel at least partially housing a catheter and an elongate tool, both the catheter and the elongate tool having a proximal and distal end;
positioning the distal end of the endoscope substantially proximate to an ampulla of Vater;
manipulating a portion of tissue adjacent the ampulla of Vater with the distal end of the elongate tool; and
cannulating the ampulla of Vater with the distal end of the catheter.
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Abstract
Described herein are methods and devices for performing endoscopic retrograde cholangiopancreatography (ERCP). A system comprising an elongate body housing a front-viewing endoscope and a tissue grasping instrument can be used to facilitate the insertion of a catheter into the ampulla of Vater. The distal end of the elongate body can be positioned such that the operator of the system can view the ampulla while manipulating the surrounding tissue to ease cannulation of the opening with the catheter. As a result, the procedure can be performed faster and more reliably than in the past.
149 Citations
33 Claims
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1. A method for performing endoscopic retrograde cholangiopancreatography, comprising:
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providing an endoscope having a proximal and distal end and an instrument channel, the instrument channel at least partially housing a catheter and an elongate tool, both the catheter and the elongate tool having a proximal and distal end; positioning the distal end of the endoscope substantially proximate to an ampulla of Vater; manipulating a portion of tissue adjacent the ampulla of Vater with the distal end of the elongate tool; and cannulating the ampulla of Vater with the distal end of the catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of diagnosing gastrointestinal ailments and/or pancreatic disease or ailments, comprising:
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providing an elongate instrument having a proximal and distal end, the elongate instrument at least partially housing a tissue manipulating tool and a cannula; inserting the elongate instrument into a mouth of a patient and advancing it down an esophagus, through a stomach, and at least partially into a duodenum; positioning the distal end of the elongate instrument proximate to an opening in a wall of the duodenum; manipulating a portion of tissue adjacent the opening in the wall of the duodenum with the tissue manipulating tool; and cannulating the opening in the wall of the duodenum with the cannula. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A device for cannulating an anatomic opening, comprising:
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an elongate body having a proximal user input end and a distal manipulation end and an instrument channel therebetween; a tissue manipulation tool at least partially housed within the instrument channel, the tissue manipulation tool having a proximal end and a distal end, the distal end being proximate to the manipulation end of the elongate body; a cannula at least partially housed within the instrument channel, the cannula having a proximal end and a distal end, the distal end being proximate to the manipulation end of the elongate body; and a controller for receiving user input and mechanically transmitting those user inputs to the distal end of the tissue manipulation tool and/or the cannula. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification