Embodiments of the present disclosure include a wheelchair configured to reposition an occupant between a lowered and a raised position. The wheelchair can include a frame, a seat moveable relative to the frame, a drive wheel, and one or more pairs of arm assemblies. The arm assembly includes a wheel configured to move from a first spatial location when the wheel chair is operating on flat, level ground to a second spatial location that is different than the first spatial location. Arm limiters that can selectively engage the arm assembly dependent on the position of the arm assembly and surface conditions of ground and can limit the range of motion of the arm assembly and sometimes other operational aspects of the chair.

A wheelchair assembly that enables an occupant to rotate their self from the seating position to the prone or kneeling prone position so that the occupant may use their arms to better reach and grasp without the aid of another person.

A patient transport apparatus for patients. The patient transport apparatus comprises a litter including a front assembly. The patient transport apparatus further comprises a footrest assembly operatively attached to the front assembly. The footrest assembly includes a footrest deck section and a linkage assembly operatively attached to and extending between the front portion of the front assembly and the footrest assembly to guide movement of the footrest assembly relative to the front assembly between a stowed position and a deployed position.

A leg support assembly includes two bodies pivotally coupled to each other. As an example, a proximate body may be sized and shaped to be placed under the thigh when in a sitting position (e.g., below the hamstring). This proximate body may be of a length and width so as to distribute at least a portion of the lower leg's weight. Additionally, a distal body may be placed under the top of a calf such that a hinge is positioned substantially under the popliteal fossa (i.e., the small area behind the knee). Various locking mechanisms may be used to lock the planar body and the distal body in a substantially fixed angle relative to each other. The locking mechanisms may be locked and unlocked to change that angle and then lock the angle in different positions.

An exoskeleton wheelchair system includes a base, one or more wheels coupled to the base, a body support connected to the base. The body support includes a back support, and one or more leg supports pivotally coupled to the back support. The exoskeleton wheelchair system also includes an actuator linked with the one or more leg supports and configured to rotate the one or more leg supports, a processor, a memory module, and machine readable instructions that, when executed by the processor, cause the processor to rotate the one or more leg supports with the actuator. The one or more leg supports pivot about a first axis when the back support is in a standing position mode, and the first axis is maintained at a fixed position when the one or more leg supports pivot about the first axis while the back support is in the standing position mode.

A calf rest and support structure of a wheelchair includes a rail, an adjusting and moving set movably disposed to the rail, a first swing member pivotally connected with the adjusting and moving set and having a first curved groove and a third pivot hole, a lock bolt secured to the adjusting and moving set through the first curved groove of the first swing member, a second swing member pivotally connected with the third pivot hole of the first swing member so as to be swung relative to the first swing member, and a calf support member fixed to the second swing member.

A knee support assembly for a wheelchair includes a knee support configured to be mounted to the wheelchair, the knee support including a flexible harness connected to and pivotably suspended between a first harness holder and a second harness holder, wherein the flexible harness includes a first strap, a second strap, and a substrate, the first strap is selectively fastened to the substrate, and the second strap is selectively fastened to the substrate, the first strap and the second strap each being configure to slide relative to substrate.

A collar with a relieved area (3) strategically placed in-between the upper and lower wheelchair leg-rest attachments (2) so a leg-rest can still be removed and installed and where the leg-rest locking arm (6) can lock into place unimpeded. A second collar (4) attached directly below the lower wheelchair leg-rest attachment (2). Both collars (3 and 4) are locked into place using flat-head screws (5). Collars (3 and 4) are of sufficient size to extend horizontally beyond the typically exposed mainframe leg-rest attachments (2). When installed at both leg-rest attachment areas (2) the invention protects a wheelchair user from a laceration injury.

A collar with a relieved area (3) strategically placed in-between the upper and lower wheelchair leg-rest attachments (2) so a leg-rest can still be removed and installed and where the leg-rest locking arm (6) can lock into place unimpeded. A second collar (4) attached directly below the lower wheelchair leg-rest attachment (2). Both collars (3 and 4) are locked into place using flat-head screws (5). Collars (3 and 4) are of sufficient size to extend horizontally beyond the typically exposed mainframe leg-rest attachments (2). When installed at both leg-rest attachment areas (2) the invention protects a wheelchair user from a laceration injury.

A leg rest device of a power vehicle includes: a supporting unit; a first lifting unit pivotally provided at the supporting unit and pivotable with respect to the supporting unit; a second lifting unit mounted to the first lifting unit and movable in a telescoping manner; an actuation unit connected to the supporting unit and configured to drive the first lifting unit; and a linkage unit having a first connecting member, a second connecting member, and a third connecting member, wherein the first connecting member and the second connecting member are separately and pivotally connected to the supporting unit while the third connecting member is separately and pivotally connected to the first connecting member, the second connecting member, and the second lifting unit.