Patent · US Active

Systems and methods for processing limb motion

US7811333B2 · kind B2 · utility

124Cited by

155References

15Claims

0Family size

Assignee

OSSUR HF · IS

Inventors

Helgi Jonsson · Reykjavík, IS
Arinbjörn Viggo Clausen · Reykjavík, IS
Heidrun Gigja Ragnarsdottir · Reykjavík, IS

Key dates

Filing date	Dec 22, 2005
Grant date	Oct 12, 2010
Priority date	—
Expiry date	Aug 7, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2002/7685
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Control systems and methods are disclosed for processing a time series of signals associated with the movement of a device associated with a limb. The time series of motion signals is filtered, such as thorough an autoregressive filter, and compared to stored data sets representing a limb-motion event and/or phase. In certain examples, a plurality of accelerometers generate the time series of motion signals based at least on acceleration measurements in three orthogonal directions and/or planes. The acceleration measurements may relate to the movement of an artificial limb, such as a prosthetic or orthotic device. Upon determining an event and/or phase of limb motion, the control system may trigger an actuator to appropriately adjust one or more prosthetic or orthotic joints.

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