There are various hurdles from R&D to sales in medical device development. The main hurdles in medical device development include relationship building with doctors, design and system development in consideration of regulations, assurance of safety and effectiveness, and after-sales safety measures. In particular, due to the regulation changes, it is difficult to develop without considering regulations. In addition, it is necessary to find out the needs from the medical field. Therefore, in this research, we investigate into the approach to overcome the hurdles of medical device development. In the presentation, we will give the presentation about the development of the methodology for the needs search from the medical field.