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:
Nov. 11, 2025
Filed:
Aug. 19, 2021
Roen Surgical, Inc., Daejeon, KR;
Kaist, Daejeon, KR;
Dong-Soo Kwon, Daejeon, KR;
Jeong-Do Ahn, Daejeon, KR;
Joon-Hwan Kim, Daejeon, KR;
Jae-Min You, Daejeon, KR;
Han-Soul Kim, Daejeon, KR;
Dong-Geol Lee, Daejeon, KR;
Ye-Sung Yi, Daejeon, KR;
Dong-Hoon Baek, Daejeon, KR;
ROEN SURGICAL, INC., Daejeon, KR;
KAIST, Daejeon, KR;
Abstract
Disclosed herein is an asymmetric rolling joint device of a surgical instrument which increases traction force by asymmetrically forming rolling contact surfaces of joint links facing each other. The asymmetric rolling joint device includes: a first joint link part which forms a joint of the surgical instrument; and a second joint link part coming into rolling contact with the first joint link part, wherein rolling contact surfaces where the first joint link part and the second joint link part come into rolling contact with each other are formed asymmetrically so as to increase traction force more than rolling contact surfaces which are formed symmetrically.