Procedure for endoscopic full-thickness resection
AssigneeOlympus Corporation
InventorOsamu Goto
Life of this patent
Estimating the term…
Abstract
A method of resecting entire layers of a digestive tract includes: an insertion step of inserting an endoscope into the digestive tract; an everting step performed after the insertion step, to suture mucosal layers located on both sides of a target region including a lesion, cover the target region with the mucosal layers, and evert a tract wall including the target region to a side of an abdominal cavity, in the digestive tract; and an incision step performed after the everting step, to position an incision tool between the target region and the mucosal layers to incise the tract wall around the lesion by the incision tool.
Claims12
A method of resecting entire layers of a digestive tract, comprising:
- inserting an endoscope into the digestive tract, the digestive tract comprising a tract wall that includes a mucosal layer, a muscle layer, and a target region including a lesion;
- then suturing areas of the mucosal layer that are located on both sides of the target region so as to:
- (i) cover the target region with the sutured areas of the mucosal layer, and (ii) evert a portion of the tract wall including the target region to a side of an abdominal cavity with a space being formed between the target region and the sutured areas of the mucosal layer;
- inserting the endoscope into the space;
- and
- incising the tract wall around the lesion by an incision tool that is positioned between the target region and the sutured areas of the mucosal layer after the portion of the tract wall is everted to the side of the abdominal cavity, the incising including:
- causing the incision tool to protrude from a channel of the endoscope that has entered into the space;
- and
- incising the muscle layer around the target region with the incision tool while observing the target region with the endoscope.
A method of resecting entire layers of a digestive tract, comprising:
- inserting an endoscope into the digestive tract, the digestive tract including a tract wall that includes:
- a target region including a lesion, and
- a first region and a second region that are located on both sides of the target region;
- then suturing together a mucosal layer of the first region and a mucosal layer of the second region without suturing a muscle layer of the first region or a muscle layer of the second region such that the target region, the muscle layer of the first region, and the muscle layer of the second region are everted to an abdominal cavity side of the mucosal layer of the first region and the mucosal layer of the second region;
- and
- then incising the tract wall around the lesion by an incision tool, which is positioned between:
- (i) the target region and (ii) the mucosal layer of the first region and the mucosal layer of the second region, by incising the muscle layer of the first region or the muscle layer of the second region, which are positioned on the abdominal cavity side of the mucosal layer of the first region and the mucosal layer of the second region.
Dependencies are inferred from the claim text.