The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2023
Filed:
Oct. 27, 2020
Applicants:
Hiroyuki Isayama, Tokyo, JP;
Olympus Medical Systems Corp., Tokyo, JP;
Inventors:
Assignees:
Other;
OLYMPUS MEDICAL SYSTEMS CORP., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 17/34 (2006.01);
U.S. Cl.
CPC ...
A61B 17/3423 (2013.01); A61B 17/3403 (2013.01); A61B 17/3478 (2013.01); A61B 17/3496 (2013.01); A61B 2017/3413 (2013.01);
Abstract
In a method of forming an access route to the bile duct, a needle is introduced into a duodenum, and the introduced needle is pierced into an oral side projection of a duodenal papilla, which is located at an oral position than an opening of the duodenal papilla. The tip of the pierced needle is made to reach the inside of the bile duct to form a tunnel communicating the duodenum and the bile duct, and a treatment device is inserted into the formed tunnel.