Surgery – Miscellaneous – Devices placed entirely within body and means used therewith
Reexamination Certificate
2006-07-28
2010-11-09
Gilbert, Samuel G (Department: 3735)
Surgery
Miscellaneous
Devices placed entirely within body and means used therewith
Reexamination Certificate
active
07827993
ABSTRACT:
A magnetic levitation system for immobile patients in a wheelchair is disclosed. A magnet multi-pole configuration that is mechanically stable is provided that lifts the body and/or load shifts (rotates the body from side to side) the body. Based on a multi-pole configuration of permanent magnets in the pelvis, a corresponding multi-pole configuration for magnet repulsion is placed below the patient, typically as part of the wheelchair. Alternatively, a unipolar repulsion with mechanical patient restraint is implemented to achieve body lift or levitation. Either permanent magnets or electromagnets, optionally with magnetic sensor-mediated active computerized feedback control below the body, are sufficient to implement a complete multi-pole repulsive configuration that is mechanically stable. The apparatus reduces compressive force on soft tissues disposed between a human pelvis and a wheelchair seat.
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International Search Report and Written Opinion corresponding to PCT/US2006/029681 under date of mailing of Jan. 26, 2007.
Cameron Graham P.
Fjerstad Wayne H.
Gilbert Barry K.
Kaufman Kenton R.
Gilbert Samuel G
Mayo Foundation for Medical Education and Research
Quarles & Brady LLP
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