In a parts-inventory control system for tracking the use of and accounting for the ultimate disposition of at least some of the component parts needed for engrafting a complete implant as each individual component part is separately surgically introduced in-vivo at a preselected anatomic site upon or within the body of a living subject, a discernible modality disposition-accounting assembly suitable for on-demand affixation at a preselected location within the spatial confines of an operating room,
- wherein said modality disposition-accounting assembly comprises
- (i) an optionally present, preformed planar base sheet composed of a durable and visibly clear light transparent matter;
- (ii) a plurality of preformed and flat backing sheets which are each oriented and aligned, spaced apart, and positioned in sequential series;
- (iii) one discrete operative micron-sized photovoltaic cell-chip transponder units disposed upon and contained entirely within each of said flat backing sheets, wherein each disposed photovoltaic cell-chip transponder units can be separately activated and individually energized by light energy to generate and electronically emit one corresponding singular RF response signal into the ambient environment, and
- (iv) a preformed planar top sheet disposed upon and joined fluid-tight to each of said operative micron-sized photovoltaic cell-chip transponder units and each of said colored backing sheets,
- whereby said modality disposition-accounting assembly presents an array of not less than two and not more than six transaction mode subassembly units and wherein each of said transaction mode subassembly units in said array lies spaced apart from the others in sequential series