US Patent 10010474 Forearm crutch

A forearm crutch has a cane assembly including a main cane and a hand grip mounted on the main cane, an adjustable base slidably mounted on the main cane, a forearm support assembly including a forearm support cane securely attached to the adjustable base and a cuff mounted on the forearm support cane, and a first locking assembly selectively locks the adjustable base in place on the main cane. When the first locking assembly is unlocked, the adjustable base and the forearm support assembly can slide along the main cane. By sliding the adjustable base and the forearm support assembly downward, the forearm crutch can be shortened and occupy small room, so as to be suitable for storage.