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:
Sep. 25, 2018
Filed:
Mar. 28, 2014
Tokusen Kogyo Co., Ltd., Hyogo, JP;
Osaka University, Osaka, JP;
Kiyokazu Nakajima, Osaka, JP;
Hiroyuki Yamashita, Hyogo, JP;
TOKUSEN KOGYO CO., LTD., Hyogo, JP;
OSAKA UNIVERSITY, Osaka, JP;
Abstract
A retractor has a rigid piercing tube and an expansion body. The expansion body has an introduction tube which is received within the piercing tube, a movable wire which is received within the introduction tube, and stationary wires which are arranged around the movable wire. The proximal end of each of the stationary wires is affixed to the distal end of the introduction tube. The distal end of each of the stationary wires is joined to the distal end of the movable wire. The respective proximal ends of the piercing tube, the introduction tube, and the movable wire are respectively joined to first, second, and third grip sections.