Patent ID: 8439852

Claim:
A walk assistance device for assisting a user to walk, the device comprising: a thigh unit configured to be arranged on a thigh of the user; a shank unit configured to be arranged on a shank of the user; a foot unit configured to be arranged on a foot of the user; a knee position joint unit configured to couple the thigh unit and the shank unit in a swingable manner; and an ankle position joint unit configured to couple the shank unit and the foot unit in a swingable manner, wherein the shank unit comprises a first replaceable member and a second replaceable member configured to extend along the shank of the user, a length of the shank unit is adjustable by replacing each of the first and second replaceable members with alternative first and second replacement members, and the first replaceable member has a higher density than the second replaceable member, and is shorter than the second replaceable member.