Methods and devices for diagnostic and therapeutic interventions in the peritoneal cavity
First Claim
1. A method for accessing an interior of a cavity of a patient, said method comprising:
- positioning an elongated flexible conduit to extend from an exterior of the mammal through a natural orifice into an and along at least a portion of the digestive tract to a target wall segment in the digestive tract;
forming an incision in said target wall segment;
advancing a distal end of said flexible conduit so that the distal end of said conduit extends through said wall;
anchoring said distal end with respect to said wall;
advancing an endoscope through said conduit so that a distal end of said endoscope is disposed adjacent or distal to said distal end of said conduit;
viewing at least one of a tissue and an organ within said cavity;
releasing said anchor;
withdrawing said conduit and said endoscope through said wall; and
closing said incision.
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Accused Products
Abstract
A novel approach to diagnostic and therapeutic interventions in the peritoneal cavity is described. More specifically, a technique for accessing the peritoneal cavity via the wall of the digestive tract is provided so that examination of and/or a surgical procedure in the peritoneal cavity can be conducted via the wall of the digestive tract with the use of a flexible endoscope. As presently proposed, the technique is particularly adapted to transgastric peritoneoscopy. However, access in addition or in the alternative through the intestinal wall is contemplated and described as well. Transgastric and/or transintestinal peritoneoscopy will have an excellent cosmetic result as there are no incisions in the abdominal wall and no potential for visible post-surgical scars or hernias.
412 Citations
35 Claims
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1. A method for accessing an interior of a cavity of a patient, said method comprising:
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positioning an elongated flexible conduit to extend from an exterior of the mammal through a natural orifice into an and along at least a portion of the digestive tract to a target wall segment in the digestive tract;
forming an incision in said target wall segment;
advancing a distal end of said flexible conduit so that the distal end of said conduit extends through said wall;
anchoring said distal end with respect to said wall;
advancing an endoscope through said conduit so that a distal end of said endoscope is disposed adjacent or distal to said distal end of said conduit;
viewing at least one of a tissue and an organ within said cavity;
releasing said anchor;
withdrawing said conduit and said endoscope through said wall; and
closing said incision. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An endoscopic access device comprising:
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an elongated, hollow, flexible tube having an interior passage sized to receive and allow the passage of an endoscope, said tube having an open distal end;
first and second inflatable balloon structures defined adjacent said distal end of said tube; and
an inflation conduit extending respectively from said first and second balloon structures to respective inflation ports disposed adjacent a proximal end of said tube for selective, independent inflation and deflation of said balloon structures. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. A dilating needle knife device comprising:
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an elongated conduit having a passage defined therethrough;
a needle-knife wire disposed in said conduit and terminating distally in a needle-knife tip;
an actuation device provided adjacent a proximal end of said conduit and secured to a proximal end of said needle-knife wire, said actuating device including an actuation mechanism for selectively shifting said needle-knife wire relative to said conduit for selectively extending said needle-knife tip to a deployed position, projecting from a distal end of said conduit, and retracting said needle-knife tip to a sheathed position, within said distal end of said conduit;
an inflatable balloon structure one of mounted to and defined on an exterior surface of said conduit, adjacent said distal end; and
an inflation lumen extending proximally from said balloon to an inflation port adjacent said proximal end of said conduit. - View Dependent Claims (31, 32, 33, 34, 35)
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Specification