US 10,376,222 B2
Method and system for functional balance assessment
Pierre Barralon, San Sebastian-Guipuzcoa (ES)
Filed by Fundacion Tecnalia Research & Innovation, San Sebastian-Guipuzcoa (ES)
Filed on Nov. 6, 2015, as Appl. No. 14/934,531.
Claims priority of application No. 14382441 (EP), filed on Nov. 6, 2014.
Prior Publication US 2016/0128642 A1, May 12, 2016
Int. Cl. A61B 5/00 (2006.01); A61B 5/103 (2006.01); A61B 5/11 (2006.01)
CPC A61B 5/7278 (2013.01) [A61B 5/1036 (2013.01); A61B 5/4023 (2013.01); A61B 5/6823 (2013.01); A61B 5/6887 (2013.01); A61B 5/1038 (2013.01); A61B 5/112 (2013.01); A61B 5/1127 (2013.01); A61B 2562/0219 (2013.01); A61B 2562/0247 (2013.01); A63B 2220/806 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A system comprising:
at least one platform configured for, in use, having a person on it, said platform comprising a plurality of sensors configured for capturing information of forces/pressures applied by the feet of the person or of the position of the person's feet;
a computer processor configured for, from said captured information, respectively extracting either a center of pressure or the position of the feet;
the system being characterized in that it further comprises:
at least one reference module providing a reference signal, the at least one reference module being disposed at a fixed location with respect to said platform;
at least one sensor which, in use, is connected to the body of the person situated on said platform, the at least one sensor being worn by said person, the sensor worn by said person capturing the reference signal provided by the at least one reference module;
wherein the computer processor is further configured for:
extracting information from said at least one reference signal captured by the at least one sensor worn by said person,
estimating from said reference signal captured by the at least one sensor worn by said person the position and orientation of said at least one sensor worn by said person with respect to the at least one reference module providing said reference signal,
estimating the position and orientation of the body of said person from said estimated position and orientation of the at least one sensor in turn obtained from said at least one reference signal, and
calculating a stability index from said position and orientation of the body of said person and from said extracted feet position or center of pressure.