Patent · US Active

Knee joint

US11696840B2 · kind B2 · utility

0Cited by

3References

11Claims

0Family size

Assignee

THE UNIVERSITY OF TOKYO · JP

Inventors

Xiaojun Sun · 戴家巷社区, CN
Masayuki Inaba · Tokyo, JP
Kei Okada · Kawagoe, JP
Yuki Markus ASANO · Tokyo, JP

Key dates

Filing date	Aug 30, 2017
Grant date	Jul 11, 2023
Priority date	—
Expiry date	Dec 6, 2038

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61H2003/005
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A knee joint that is capable of widening a moveable range, and that has good energy efficiency and is small and lightweight is described. Also described is a knee joint that is of an active type, but comparatively inexpensive. A drive section moves a driven member. An elastic member is arranged between the driven member and a linear motion member. The linear motion member elastically moves in at least one direction, in accordance with movement of the driven member, by way of the elastic member. A crank mechanism can realize bending and extension of the knee joint by converting linear motion of the linear motion member to rotational motion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.