Aids in prevention and treatment of pressure sores: contoured cushion fabrication using the Shapeable Matrix

Abstract

This chapter discusses the application of the Shapeable Matrix in prevention and treatment of pressure sores where there is a need for seating and/or postural support (although other applications are possible). It also discusses the relevant features of existing cushions, pointing out advantages and disadvantages in then-use. This leads to a list of features an improved cushion should have. The use of the Shapeable Matrix as a system for supplying custom-fitted cushions is discussed. The Shapeable Matrix uses a grid of interconnected mass-produced parts that can be shaped, custom-fitted and mechanically locked. The Shapeable Matrix can be fitted inexpensively, providing a custom-fitted seated surface (upon which a thin inexpensive foam is used). Pressure equalisation and peak pressure relief can be obtained by shaping the matrix in conjunction with pressure measurement and direct inspection by putting a finger through the regularly spaced holes in the matrix structure. Total pressure relief can be obtained by the patient leaning to the side, as opposed to lifting. Temperature and humidity rise at the skin is reduced, compared with conventional foam cushions, by the thinness of the foam producing less insulation and with open matrix structure beneath. Quality of fit and patient postural stability are good. Removal of parts of the structure for total pressure relief of an area during seating can be obtained. Other advantages of Matrix use are discussed.