A photoic method for tissue stimulation [Short Communications]

A method for tissue stimulation is described. It A consists of the energizing of subcutaneously implanted solar cells by means of an extra-corporal light source which provides intermittent illumination. Wave lengths of light passing through the skin are compatible with the spectral response of the solar cells, thus enabling relatively good transmission efficiency. In the present work, we describe a cardiac pacemaker which was used to demonstrate tissue stimulation utilizing the above-mentioned method. It is the purpose of this communication to present our preliminary experience with the activation of implanted solar cells for pacemaking in dogs; this method serves as an example of stimulation of other organs.