Method for inserting endoscopic device into hollow organ using guide wire

Patent metadata

Field	Value
Publication number	US-2016121084-A1
Application number	US-201414527150-A
Country	US
Kind code	A1
Filing date	Oct 29, 2014
Priority date	Oct 29, 2014
Publication date	May 5, 2016
Grant date	—

Abstract

In a disclosed method for inserting an endoscopic device, in a state in which a guide wire is inserted through an opening of a hollow organ of a subject, the guide wire is indwelt in the hollow organ. Next, a flexible endoscope is made to approach the opening of the hollow organ. Next, inside of the body of the subject, an endoscopic device that projects from the tip of a channel of the endoscope slidably engages with the guide wire. Next, the endoscopic device is inserted into the hollow organ through the opening, along the guide wire. The guide wire that is indwelt once is subsequently used as a guide for second and subsequent insertions of endoscopic devices.

First claim

What is claimed is:

1 . A method for inserting an endoscopic device into a hollow organ, comprising:
a first step of indwelling, in a region in which a first hollow organ communicates with a second hollow organ via an opening in a body of a subject, a guide wire in the first hollow organ such that the guide wire is kept to be inserted through the opening; a second step of making a flexible endoscope approach the opening in the first hollow organ, the flexile endoscope being provided with a channel; a third step of slidably engaging an endoscopic device that projects from a tip of the channel of the endoscope with the guide wire inside the body of the subject; and a fourth step of inserting, along the guide wire, the endoscopic device into the first hollow organ through the opening.

2 . The method of claim 1 , comprising:
a fifth step of releasing the endoscopic device from engaging with the guide wire; and a sixth step of pulling out the released endoscopic device from outside the subject.

3 . The method of claim 1 , comprising:
a fifth step of making a further guide wire run through the endoscopic device inserted in the first hollow organ and inserting the further guide wire into the first hollow organ.

4 . The method of claim 1 , comprising:
a fifth step of inserting an indwelling object into the body with the indwelling object loaded on the endoscopic device inserted in the first hollow organ and inserting the indwelling object into the first hollow organ.

5 . The method of claim 1 , wherein
the first step includes inserting the guide wire into the first hollow organ under observation of an ultrasound image acquired by an ultrasound endoscope inserted in the second hollow organ from a natural opening of the subject.

6 . The method of claim 1 , wherein
the first step includes inserting the guide wire into the first hollow organ under observation of an ultrasound image acquired by an ultrasound diagnostic apparatus which scans the subject from an outside thereof.

7 . The method of claim 1 , wherein
the first hollow organ is one of a bile duct, a pancreatic duct, and a cyst and the opening is a papilla, an anastomotic site, or a puncture site.

8 . The method of claim 4 , comprising:
a fifth step of releasing the endoscopic device from engaging with the guide wire in the opening; a sixth step of releasing the indwelling object from the endoscopic device inserted in the opening; and a seventh step of pulling out the endoscopic device from the opening, with both the indwelling object and the guide wire indwelt in the first hollow organ.

9 . The method of claim 4 , comprising, in a state where the indwelling object is composed of a plurality of indwelling objects detachably loaded on a tip end of the endoscopic device, repeating the third to seventh steps a plurality of times which correspond in number to the plurality of indwelling objects.

10 . The method of claim 1 , wherein
the third step includes performing the engagement by making a grasping portion of the endoscopic device grasp slidably the guide wire such that an angle made between linear lengthwise directions of both the guide wire and the endoscopic device is acute.

Assignees

• Olympus Corp

Inventors

• Yokota Takuo
• Matsunaga Rei
• Kaji Kunihide

Classifications

• A61B2017/00818

  Treatment of the gastro-intestinal system · CPC title

• A61B1/00133

  Drive units for endoscopic tools inserted through or with the endoscope · CPC title

• A61B17/00234

  for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence) · CPC title

• A61M25/09 Primary

  Guide wires · CPC title

• A61B2017/00296

  mounted on an endoscope · CPC title