Abstract: An improved sit-to-stand wheelchair having a base for engaging a surface and carrying a power actuated elevating drive supporting a patient seat and a wheels with improved footrests that may be retractable, said power actuated elevating drive simultaneous elevating the seat and lowering the base into fixed engagement with a surface when the patient desires to move to a standing position.

Abstract: This invention comprises a low cost, high strength sit-to-stand wheel chair assembly. It is comprised of a base with an upward extension formed of a linear actuator mounted within telescopic members. The telescopic members carry large wheels together with a linkage operated front wheels that are mounted on the forward position of the base. A power linear actuator assembly causes the telescopic members to extend and retract to move the wheelchair assembly from the mobile position to a raised position that permits the base to engage the floor surface and to assist the patient to move from a sitting position to a standing position.