This invention provides a process for the preparation of protein mediated calcium hydroxyapatite coating on metal substrates particularly on stainless steel by biomimetic route, capable of rapid and effective osteointegration with the host tissue following controlled interfacial reactions. And its manufacturing method characterizes in making the storage capacity element on the substrate and making the thin-film transistor to overlie the storage capacity element via an inter-layer insulating film. One region has an RFID integrated circuit and areas of electrically conductive material. The trace format grammars can be examined to form a suitable analyzing mechanism, such as a parser, to analyze the traces. The distal end of the gastro tube passes through the masking ring at its narrower distal region where, when installed in a patient, it abuts against the oesophagus; and the distal portion of the gastro-tube flattens when the mask is deflated to facilitate smooth passage behind the larynx during insertion through the mouth and throat of the patient.