Endoscopic submucosal dissection hood
AssigneeBoston Scientific Scimed, Inc.
InventorsMatthew Robert Jagelski, Shawn Ryan, Celine Mee Ling Chin, Norman C. May, Catherine Shimin Yee, Paul Smith, Ray Tong
Life of this patent
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Abstract
The present disclosure relates to the field of endoscopy. In particular, the present disclosure relates to systems and methods suitable for resecting or dissecting large areas of mucosal or submucosal tissue. The system may apply tension to and continuously manipulate mucosal tissue such that large lesions may be resected or dissected by a cutting element disposed at the distal end of an endoscope.
Claims20
An endoscopic hood configured to be disposed at a distal end of an endoscope comprising an endoscope body and a working channel disposed within the endoscope body, the endoscopic hood comprising:
- a first portion comprising a proximal end, a distal end and first and second lumens extending therebetween;
- a second portion extending from the distal end of the first portion, said second portion comprising a curved wall with an open distal end and defining a working area adjacent a concave surface of the curved wall and the first lumen;
- and
- a support member extending into the first lumen adjacent to the curved wall;
- wherein the first lumen is configured to receive a portion of a shaft of a first device disposed in the working channel of the endoscope, and wherein the second lumen is configured to slidably and rotationally receive a portion of a shaft of a second device disposed along an outer surface of the endoscope.
An endoscopic system comprising:
- an endoscope comprising an elongate body having a proximal end, a distal end and a working channel disposed within the elongate body;
- an endoscopic hood coupled to the distal end of the endoscope, the endoscopic hood comprising:
- a first portion comprising a proximal end, a distal end and first and second lumens extending therebetween, wherein the first lumen is in communication with the working channel of the endoscope,
- a second portion extending from the distal end of the first portion, said second portion comprising a curved wall with an open distal end and defining a working area adjacent a concave surface of the curved wall and the first lumen, and
- a support member extending into the first lumen adjacent to the curved wall;
- a first shaft having a proximal end and a distal end, wherein a portion of the first shaft is disposed within the working channel and the first lumen;
- and
- a second shaft having a proximal end and a distal end, wherein a portion of the second shaft is slidably and rotationally disposed along an outer surface of the elongate body and extends through the second lumen.
A method of resecting or dissecting tissue, comprising:
- a) inserting, into a body lumen of a patient, an endoscopic system comprising:
- an endoscope comprising an elongate body having a proximal end and a distal end and a working channel disposed within the elongate body;
- an endoscopic hood coupled to the distal end of the endoscope, the endoscopic hood comprising:
- a first portion comprising a proximal end, a distal end and first and second lumens extending therebetween, wherein the first lumen is in communication with the working channel of the endoscope;
- and
- a second portion extending from the distal end of the first portion, said second portion comprising a curved wall with an open distal end and defining a working area adjacent a concave surface of the curved wall and the first lumen;
- a first shaft having a proximal end and a distal end, wherein a portion of the first shaft is disposed within the working channel and the first lumen;
- and
- a second shaft having a proximal end and a distal end, wherein a portion of the second shaft is slidably and rotationally disposed along an outer surface of the elongate body and extends through the second lumen, wherein the distal end of the first shaft includes a tissue cutting element, and wherein the distal end of the second shaft includes a tissue engaging element;
- b) positioning the endoscopic hood over the surface of a target tissue;
- and
- c) resecting or dissecting the target tissue with said tissue cutting element while engaging the tissue with said tissue engaging element.
Dependencies are inferred from the claim text.