Apparatus for performing diagnostic and therapeutic modalities in the biliary tree
AssigneeBoston Scientific Corporation
InventorsChristopher A. Rowland, Michael G. Vergano, Bryan P. Eddy, Peter B. Cotton
Life of this patent
Estimating the term…
Abstract
Catheter apparatus for performing diagnostic and therapeutic modalities in the biliary tree includes a catheter with multiple lumens. A first lumen is adapted to receive a guidewire and can serve as a transport lumen for contrast agent. A second lumen carries a cutting wire for performing a sphincterotomy. A third lumen can be used as an inflation lumen for a distally located balloon. Expansion of the balloon occludes a portion of the biliary tree and allows the catheter to sweep any gallstones through the sphincter of Oddi into the duodenum.
Claims12
Apparatus for use in a treatment modality including an enlargement procedure and another procedure to be performed within a patient, said apparatus comprising:
- A. catheter means for being directed through internal passageways in the patient, said catheter means having proximal and distal ends and proximal and distal portions adjacent to said proximal and distal ends respectively, first, second and third generally parallel lumens with said first lumen being larger than said second and third lumens, said lumens extending between said proximal and distal portions,
- B. enlargement means for performing the enlargement procedure extending through said second lumen for operating at said distal portion in response to manipulations at said proximal end, said enlargement means comprising a cutting wire having a distal end attached to said catheter means at the distal end of said second lumen, a portion thereof external to said catheter means along a length coextensive with a portion of said distal portion of said catheter means and a proximal end of said cutting wire attached to said operator means,
- C. operator means at said proximal end attached to said catheter means and said a proximal portion of said enlargement means for operating said enlargement means from a point proximal of said catheter means,
- D. a first lumen proximal port in said proximal portion of said catheter means for enabling access to said first lumen, and
- E. a third lumen proximal port at said proximal end of said catheter means for providing access to said third lumen to enable a user to control the other procedure at the distal end of said catheter means through said third lumen.
Apparatus for the removal of objects from the biliary tree through the working channel of a duodenoscope, said apparatus comprising:
- A. catheter means for being directed through the working channel and the sphincter of Oddi into the biliary tree, said catheter means having proximal and distal ends and proximal and distal portions adjacent to said proximal and distal ends respectively and having first, second and third generally parallel lumens with said first lumen being larger than said second and third lumens, said lumens extending between said proximal and distal portions, each of said lumens extends along an axis through said catheter means that is displaced from the center of said catheter means and from the axes of the others of said lumens and has a proximal port and a distal port at said proximal and distal portions of said catheter means, said distal port of said first lumen being located at said distal end of said catheter means,
- B. sphincterotomy means for cutting the sphincter of Oddi, said sphincterotomy means including a cutting wire extending through said second lumen and externally of said catheter means through said distal port of said second lumen along a length that is coextensive with a part of said distal portion of said catheter means and handle means attached to said catheter means proximal portion and a proximal portion of said cutting wire exiting said proximal port of said second lumen for positioning said cutting wire, and
- C. an expansible balloon mounted on the distal portion of said catheter means and coextensive with said distal port of said third lumen thereby to enable inflation of said expansible balloon by the administration of an inflation fluid at said proximal port of said third lumen.
Dependencies are inferred from the claim text.