Exercise devices – Involving user translation or physical simulation thereof – Occupant suspended from above for foot travel
Reexamination Certificate
2005-04-25
2009-06-09
Mathew, Fenn C (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Occupant suspended from above for foot travel
C601S034000
Reexamination Certificate
active
07544155
ABSTRACT:
Passive gravity balancing orthosis apparatus for assisting and training patients suffering from muscle weakness by relieving the patients afflicted member of its weight using a plurality of articulated supporting members. Relief is obtained by identifying and fixing the center of mass of the combined articulated equipment members and supported weight of the patient's member in space using a defined parallelogram mechanism and once so identified making the total potential energy for any configuration of the articulated members of the system constant. At least one zero free length spring is used to connect the center of mass to a support outside the articulated members. Additional springs connect the center of mass to the articulated members.
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Agrawal Sunil K.
Banala Sal
Fattah Abbas
Mathew Fenn C
RatnerPrestia
University of Delaware
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