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US 11,833,089 B2Granted
Sit-to-stand wheelchair
AssigneeDowding Tool Products LLC
InventorMaurice H Dowding
Life of this patent
Estimating the term…
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.
Claims14
A wheelchair supported by a support surface, the wheelchair comprising:
- a seat portion including an armrest rotatable wheels connected to the seat portion for rotatably-supporting the seat portion;
- a footrest movement actuator supported by the armrest of the seat portion;
- and
- a wheel lift assembly arrangable in one of two orientations including:
- a raised orientation whereby the rotatable wheels do not rotatably-engage the support surface;
- and
- a lowered orientation whereby the rotatable wheels rotatably-engage the support surface,
- wherein the wheel lift assembly includes:
- a base;
- a base movement device that imparts movement of the base relative the support surface for arrangement in one of the raised orientation or the lowered orientation;
- a footrest movably-connected to the base, wherein the footrest is connected to the footrest movement actuator, wherein actuation of the footrest movement actuator arranges the footrest in one of two orientations including:
- a deployed orientation for at least partially covering the support surface and for supporting feet of a user of the wheelchair when the user of the wheelchair is situated in a seated position upon the seat portion;
- and
- a stowed orientation for providing clearance to the support surface for permitting the feet of the user of the wheelchair to engage the support surface when the user of the wheelchair is situated in a standing position away from the seat portion.
11 more elements
Dependencies are inferred from the claim text.