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. 23, 2025
Filed:
Sep. 27, 2024
Xi'an Jiaotong University, Shaanxi, CN;
Laihao Yang, Shaanxi, CN;
Yinchong Peng, Shaanxi, CN;
Yu Sun, Shaanxi, CN;
Xuefeng Chen, Shaanxi, CN;
XI'AN JIAOTONG UNIVERSITY, Xi'an, CN;
Abstract
Disclosed is a birfield flexible variable-stiffness continuum robot unit and a continuum robot. In the birfield flexible variable-stiffness continuum robot unit, main structural units are interconnected to constitute a continuum manipulator; joint connecting structures connect the two adjacent main structural units; a front-end unit is arranged at a foremost end of the manipulator; and a rear-end unit is arranged at a rearmost end of the manipulator. When in use, birfield joint design is adopted, a single joint has two degrees of freedom, is more flexible and variable, and the adjacent structural units rotate around a center of a sphere, so that modeling is simpler and more convenient; connection design of flexible springs is further adopted, certain stiffness is provided for the manipulator, and thus the manipulator has a variable-stiffness characteristic; and meanwhile, a roll ball structure makes the manipulator have high torsional resistance.