ESI has been manufacturing lighted medical instruments for over 100 years. We offer repair and parts replacement for our current product line and, where practical, non-current instruments and equipment of our manufacture. We also offer the same service on instruments and equipment of other manufacturers, provided such repairs are economically feasible.In addition to our routine product line, ESI provides custom manufacturing and engineering design services and instrument modification per customer specification. We offer research service for locating hard to find items or the specific instruments with which you are most comfortable working.