A patient examination system for locating a patient above a floor. The patient examination system includes a frame assembly, one or more motion-controlling assemblies connected to the frame assembly for moving one or more selected movable portions of the frame assembly, and a patient support assembly that is supported by the frame assembly. The patient support assembly includes a seat subassembly, a back subassembly, a footrest subassembly, and a cover element covering a seat cushion and a footrest cushion in the footrest subassembly. The cover element has an exposed surface formed for engagement with the patient. The seat subassembly supports the seat cushion and is secured to the upper element of the frame assembly. The frame assembly is configured to support the seat subassembly relative to the floor in a lowered position thereof, in a raised position thereof, in intermediate seat positions therebetween, and in Trendelenburg positions.

A linkage mechanism including a base, a first linkage, a second linkage and a driving element is provided. The first linkage has a first end portion and a second end portion opposite to each other, and the first end portion is pivoted to the base. The second linkage has third end portion and a fourth end portion opposite to each other, wherein the third end portion is coupled to the base, and the second end portion and the fourth end portion are coupled with each other. The driving element is coupled to at least one of the second end portion and the fourth end portion, and is configured to drive the first linkage and the second linkage to move relative to the base. A walking aid device is also provided.

A conveyance to carry humans, such as a wheelchair, is described having levers on each side of the wheelchair that are manually moved forward and backward to propel the conveyance. The user is able to shift into forward, reverse or neutral, brake, and change mechanical advantage (gear ratio), all this without removing the user's hands from the drive levers.

Wheelchair (10) with two independent driving arms (21, 21), comprising a seat (16), two rear large wheels (12, 13) and two front small wheels (14), wherein the small wheels (14) can be freely turned around a vertical axis, and a common frame (11) for holding the listed parts, and the two driving arms (21, 21) are fixed to the frame (11) by means of respective pivot bearings (25) which are fixed at a low position close to the place where the small wheels (14) are attached to the frame (11), and the driving arms (21, 21) extend till a height which is sufficiently high for the person sitting in the wheelchair (10) to hold their upper end portions easily with hands and to move them in forward-backward directions around the respective pivotal bearings, and both of the large wheels (12, 13) are equipped with respective brakes that can be operated by the driving arms (21, 21) or by respective brake handles (42) positioned on the driving arms (21, 21), and to respective lower sections of the driving arms (21, 21) respective ropes (32, 32) are connected, and the two large wheels (12, 13) comprise respective wheel hubs (30, 30) each equipped with freewheel, and to one side of each wheel hub (30, 30) a respective one of rope drums (31, 31) is attached, the rope drums (31, 31) are each provided with a spring bias, and a winding made of said rope (32, 32) comprising a predetermined number of turns is provided on the mantle of each rope drum (31, 31), wherein a predetermined displacement length of the pulling of the rope (32, 32) in forward direction results in a given turning of the associated wheel hub (30, 30) in forward direction, and when the rope drum (31, 31) is turned in the other direction the freewheel releases the connection towards the large wheel (12 or 13), and the wheel hub (30, 30) comprises a release mechanism that releases the locking of the freewheel when the large wheel (12 or 13) is moved in backward direction and backward movement gets allowed.

A conveyance to carry humans, such as a wheelchair, is described having levers on each side of the wheelchair that are manually moved forward and backward to propel the conveyance. The user is able to shift into forward, reverse or neutral, brake, and change mechanical advantage (gear ratio), all this without removing the user's hands from the drive levers.

A wheeled walker including a first wheel pair that is in front in a driving direction and a second wheel pair that is behind in the driving direction; a frame that includes struts that are oriented backward against the driving direction wherein each of the struts supports a rear wheel of the second wheel pair; a platform that is attached at the wheeled walker and that includes at least one wheel and a standing surface for a person using the wheeled walker; and an electric motor drive that is configured to propel the wheeled walker at least in the driving direction, wherein the standing surface of the platform is arranged between the wheels of the second wheel pair.

A wheelchair device for actively moving a seat unit, in particular a seat part and/or a backrest part of the seat unit, of a wheelchair, has at least one movement conversion unit which is arrangeable at least in part on at least one drive wheel of the wheelchair and which is provided for the purpose of converting a movement of the at least one drive wheel into a movement of the seat unit.

A wheelchair with two handles on each side that controls the rotation of the wheels. The handles both have levers that are pulled to seize a firm hold of the wheel to allow the wheels to be operated with the firm grip of a handle instead of circular handrails.

A wheelchair with a ratchet/pawl drive system comprising a seat back, a seat bottom, a frame, two mounting brackets, two car guide tracks, two front wheel assemblies, two car assemblies, two brake assemblies, two drive wheels, and two wheelchair wheels. The ratchet/pawl drive comprises at least one drive wheel sprocket, at least one ratchet/pawl assembly, at least one forward-neutral-reverse lever and at least one brake assembly. The ratcheting/pawl drive system may be included in a novel wheelchair or may be integrated into existing standard wheelchairs as a retrofit kit.

A hand propelled wheeled vehicle, specifically a wheelchair, containing a pair of hand actuated, lever driven mechanisms to rotate the main wheels. The levers pivot around attachment points on the left and right sides of the vehicle chassis. The left lever actuates a frame responsible for contra-rotating two integral one-way clutches arranged on a drive shaft coupled to the left main wheel, with the right lever operating the right side mechanism in an identical fashion. The arrangements of the clutches utilize both the forward (pushing) and backward (pulling) stroke of the lever to rotate the main wheels forward. Steering and braking control is afforded through attachments integral to the hand grips of the right and left hand levers, respectively.