Abstract: A swivel open bottom seat assembly for invalids for use in supporting an invalid over a toilet seat, a shower head or a bathtub or the like facilities. In one application, the seat is secured to a pivot post via a connecting arm extending from the post. The pivot post has an attachment base for securement to the floor adjacent a facility. The pivot post is pivotally rotatable with respect to a central longitudinal axis and permits the seat to be displaced on an arc relative to the axis of the post to position the post from an embarking position away from the facility to a position of use over or in the facility.