Assistive technology (AT) is a generic term that includes assistive, adaptive, and rehabilitative devices for people with disabilities.
Wheelchairs Manual chairs require human power to move. Power chairs (always power, since no one wants to use an “electric chair”!) are driven by an electric motor. Wheelchairs are considered an extension of the person’s body, and many people become very fond of their wheelchair. People don’t generally feel “wheelchair bound;” they feel like the chair allows them freedom and independence.
Wheelchair lifts can provide an alternative to stairs. They often fill the same function as elevators, but generally for smaller heights.
A walker can provide balance to someone who is less stable on their feet. Many walkers also have a seat built in, allowing someone with limited stamina more security.
http://www.drugs.com/cg/how-to-choose-and-use-a-walker.html
Canes and crutches are used when someone has reduced balance, or needs to take weight off a leg. For short term use, many people will use standard versions. For longer term use, some people may choose to seek out custom designs to better suit their needs and fashion sense.
http://www.drugs.com/cg/how-to-choose-and-use-a-cane.html
http://www.drugs.com/cg/crutch-instructions.html
Sling lifts might be used by someone who needs help moving their body from one place to another. An example is someone who needs help transferring from a wheelchair to a bed.
http://www.techforltc.org/ltc.cfm?pageid=156&producttype=1971&careissue=1892
More information about assistive technology for mobility.
http://www.abledata.com/abledata.cfm?pageid=19327&ksectionid=19327

