a portable patient supporting seat that is not only comfortable but also controls the spine support by correct pelvis positioning . ischial turerosity support the users body while sitting and elevate the anus from the seated height . a first advantage of the present invention that is a modular pad , is to provide a build up that assists the body in supporting the anus externally and relieving the load on the sphincter muscle . by varying the configuration and modifying the dimensions relief of the ischial tuberosity and coccyx pressure is achieved . adding a back support to the present invention allows better support for some patients suffering low back pain as well as providing a support insert that may be used in wheel - chairs as well as in automobiles . the modular structure of the present invention is to provide configuration components that are interchangeable , yet each configuration being self contained .