Patent · US Active

Prosthetic leg knee joint, braking device, and load position detector

US11413166B2 · kind B2 · utility

0Cited by
3References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 23, 2019
Grant dateAug 16, 2022
Priority date—
Expiry dateJan 22, 2040

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61F2002/6827
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

A prosthetic leg knee joint includes a thigh connection part that is provided on the thigh side, a lower leg part that is provided rotatably around a knee shaft connected to the thigh connection part, a four-bar link mechanism that sets an instant center S whose relative position with respect to the thigh connection part is substantially constant regardless of the relative position between the thigh connection part and the lower leg part, and a braking unit that brakes the movement of the lower leg part in accordance with the relative position between the instance center S set by the four-bar link mechanism and the lower leg part.

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