Embodiments herein are directed to systems and methods of a wheelchair that includes a frame and a pair of armrests. The pair of armrests includes an arm pad, a sleeve configured to store a plurality of telescoping segments, and a pivot portion positioned between the arm pad and the sleeve. The plurality of telescoping segments is configured to extend in a system vertical direction. The pair of armrests is releasably coupled to the frame at the sleeve via a release mechanism. The pair of armrests is pivotable between a first position and a second position wherein when in the first position the pair of armrests is in an armrest position and in the second position the pair of armrests is pivoted in the system vertical direction such that the pair of armrests is a pair of crutches independently operable from the wheelchair.

Embodiments herein are directed to systems and methods of a wheelchair that includes a frame and a pair of armrests. The pair of armrests includes an arm pad, a sleeve configured to store a plurality of telescoping segments, and a pivot portion positioned between the arm pad and the sleeve. The plurality of telescoping segments is configured to extend in a system vertical direction. The pair of armrests is releasably coupled to the frame at the sleeve via a release mechanism. The pair of armrests is pivotable between a first position and a second position wherein when in the first position the pair of armrests is in an armrest position and in the second position the pair of armrests is pivoted in the system vertical direction such that the pair of armrests is a pair of crutches independently operable from the wheelchair.

A system is disclosed which includes a walking assistance robot for assisting a smooth start of a user's action after standing up from a chair. A system according to an aspect of the present disclosure includes a walking assistance robot and an automatic elevation chair that moves a seating surface where a user sits. The automatic elevation chair detects a consciousness level of the user and transmits consciousness level information on the detected consciousness level of the user to the walking assistance robot via the network. The walking assistance robot, including a body and a rotor that moves the walking assistance robot, receives the consciousness level information via the network and controls resistance force to rotation of the rotor based on the received consciousness level information.

A system is disclosed which includes a walking assistance robot for assisting a smooth start of a user's action after standing up from a chair. A system according to an aspect of the present disclosure includes a walking assistance robot and an automatic elevation chair that moves a seating surface where a user sits. The automatic elevation chair detects a consciousness level of the user and transmits consciousness level information on the detected consciousness level of the user to the walking assistance robot via the network. The walking assistance robot, including a body and a rotor that moves the walking assistance robot, receives the consciousness level information via the network and controls resistance force to rotation of the rotor based on the received consciousness level information.

A rise action assistance device according to an aspect of the present disclosure is provided with: a myoelectric potential acquirer that acquires a myoelectric value of a sitting user's tibialis anterior muscle, and a myoelectric value of the sitting user's vastus lateralis muscle or a myoelectric value of the sitting user's vastus medialis muscle; an angle acquirer that acquires a bend angle of the sitting user's upper body; a detector circuit that detects a start of a rise action by the user, based on the myoelectric value of the user's tibialis anterior muscle, the myoelectric value of the user's vastus lateralis muscle or the myoelectric value of the user's vastus medialis muscle, and the bend angle of the user's upper body; and an assistor that starts assistance of the rise action after the start of the rise action is detected.

A rise action assistance device according to an aspect of the present disclosure is provided with: a myoelectric potential acquirer that acquires a myoelectric value of a sitting user's tibialis anterior muscle, and a myoelectric value of the sitting user's vastus lateralis muscle or a myoelectric value of the sitting user's vastus medialis muscle; an angle acquirer that acquires a bend angle of the sitting user's upper body; a detector circuit that detects a start of a rise action by the user, based on the myoelectric value of the user's tibialis anterior muscle, the myoelectric value of the user's vastus lateralis muscle or the myoelectric value of the user's vastus medialis muscle, and the bend angle of the user's upper body; and an assistor that starts assistance of the rise action after the start of the rise action is detected.

Novel tools and techniques might provide for implementing seat lifting. In various embodiments, a seat lifter might include one or more first pistons, one or more second pistons, and a seat portion. The one or more first pistons, when actuated (e.g., in response to user input), might cause a rear portion of the seat portion to lift relative to a front portion of the seat portion, the rear portion of the seat portion being lifted by a first height above a seat to which the seat lifter is affixed. The one or more second pistons, when actuated, might cause the front portion of the seat portion to lift by a second height above the seat, the second height being less than the first height. In some instances, the first pistons and the second pistons might be actuated serially (in either order), or might be actuated concurrently.

Novel tools and techniques might provide for implementing seat lifting. In various embodiments, a seat lifter might include one or more first pistons, one or more second pistons, and a seat portion. The one or more first pistons, when actuated (e.g., in response to user input), might cause a rear portion of the seat portion to lift relative to a front portion of the seat portion, the rear portion of the seat portion being lifted by a first height above a seat to which the seat lifter is affixed. The one or more second pistons, when actuated, might cause the front portion of the seat portion to lift by a second height above the seat, the second height being less than the first height. In some instances, the first pistons and the second pistons might be actuated serially (in either order), or might be actuated concurrently.

The stand-up unit comprises a support a stand-up frame, which is articulated on the support and has a seat carrier carrying a seat, and a backrest carrier carrying a backrest. Furthermore, a first lever parallelogram is provided in order to maintain the backrest upright in any position. The backrest can be displaced by the first lever parallelogram by means of a rod, in order to ensure that no undesirable relative movement occurs between the backrest and the back of the user when getting up or sitting down. A second lever parallelogram controls the movement of the seat when getting up and sitting down to ensure that no relative movement develops between the seat and buttocks of the user. The stand-up unit may be provided with a base to serve as a chair, particularly a therapy chair. The stand-up unit, however, may also serve as a stand-up wheelchair, when connected to an undercarriage. Spring joint elements support the standing up.

The stand-up unit comprises a support a stand-up frame, which is articulated on the support and has a seat carrier carrying a seat, and a backrest carrier carrying a backrest. Furthermore, a first lever parallelogram is provided in order to maintain the backrest upright in any position. The backrest can be displaced by the first lever parallelogram by means of a rod, in order to ensure that no undesirable relative movement occurs between the backrest and the back of the user when getting up or sitting down. A second lever parallelogram controls the movement of the seat when getting up and sitting down to ensure that no relative movement develops between the seat and buttocks of the user. The stand-up unit may be provided with a base to serve as a chair, particularly a therapy chair. The stand-up unit, however, may also serve as a stand-up wheelchair, when connected to an undercarriage. Spring joint elements support the standing up.