A wheelchair was a chair mounted on wheels used by disabled or injured people.
History
Among those who required a wheelchair were Dr. Judson, (TV: The Curse of Fenric) Jeremy Winterdawn, (PROSE: Falls the Shadow) Alexander K. Bridgeman, Udentkista, (PROSE: Invasion of the Cat-People) David Merrison, (PROSE: But Once a Year) John Lumic, (TV: Rise of the Cybermen / The Age of Steel) Rona Bellows, (TV: Last Christmas) Jackie MacLean, (TV: For Tonight We Might Die) Hebe Harrison (AUDIO: The Rotting Deep) and Dortmun. (TV: The Dalek Invasion of Earth)
When Channing abducted the Third Doctor from Ashbridge Cottage Hospital, he transported him in a wheelchair; however, the Doctor used the wheelchair to escape. (TV: Spearhead from Space)
Having been sent back to Event One, the TARDIS appeared to provide the newly regenerated Fifth Doctor with an electric wheelchair to help him get around. (TV: Castrovalva)
The Second Doctor was wheeled around in a wheelchair in front of Peri by Shockeye to see if she recognised him. (TV: The Two Doctors)
Hugh Curbishley pretended to need a wheelchair to keep his wife Clemency Eddison from leaving him. (TV: The Unicorn and the Wasp)
Neil Redmond used a wheelchair after his car accident in France in 2004. (AUDIO: Uncanny Valley)
Owen Harper used a wheelchair after forgetting how to walk thanks to Amira Hussein. (AUDIO: Iceberg)
Amphitrite used a wheelchair to disguise her nature. (AUDIO: Cryptobiosis)
Rex Matheson used a wheelchair to make his way to the hospital exit. (TV: The New World)
By 2018, an elderly Umbreen made use of a wheelchair. (TV: Demons of the Punjab)
In an alternate timeline in which the British Empire had conquered Earth with Dalek technology, the Sixth Doctor was confined to a wheelchair after his legs had been cut off for attempting to escape. (AUDIO: Jubilee)
In an alternate reality created by Mister Heart, Patrick Spate used a wheelchair. (PROSE: Framed)
An individual believed by Clive Finch to be an incarnation of the Doctor used a high-tech wheelchair. (PROSE: Rose)