Abstract: A direction lock assembly of a caster for a rolling walker comprises a pin housing, a lock pin and a caster base. The pin house sets a pin chamber for inserting a lock pin and attaches on an end of walker's front leg and pivotally connects with a caster base. The pin house has a passage outside of the pin chamber with two notches located on both ends. A handle connects with the lock pin through the passage of the lock housing. Therefore, the handle of the lock pin can switch the pin between the first position, pulling the handle up to an upper notch to hold the pin in an upper location for opening the lock to free the rotation of the caster in any direction, and the second position, pulling the handle down to a lower notch to hold the pin in a lower location for fixing the caster in the forward and backward direction.

Abstract: A lock assembly is disclosed for use with a foldable walker. The lock assembly includes a lock pin movable between a first position in which the corresponding side member is held in a locked unfolded state and a second position in which the side member is in an unlocked folded state. A lock plate extends transversely to the longitudinal axis of the corresponding side member. The lock plate includes an aperture adapted to receive a locking end of the lock pin when the pin is in its first position and a guide trough limiting the side members to rotate relatively in a certain angles. A lever is connected to the lock pin such that when the lever is pushed down, the lock pin is moved from its first position to its second position and holds in the second position to permit rotation of the corresponding side member to its folded state.

Abstract: An auxiliary seat pad invented for an invalid to sit on a toilet, a stool and a chair, with which offers a higher seat position, safety, easy assembling, comfortable contact, and durability, comprises a rigid support plate, a stuffing body with the determined thickness deposited on said support plate, and a soft elastic enclosed body with a certain thickness to enclose said support plate and said enclosed body. With a set of adjustable clamping apparatus on the bottom side, secures said auxiliary seat pad on a toilet.