This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignees: Nakashima Medical Co., Ltd., Other. Active years: 2015-2016.
Company Filing History:
2 out of 3 
2 out of 834,453 Years Active: 2015-2016
Title: Keitarou Yamamoto: Innovator in Surgical Instrumentation
Introduction
Keitarou Yamamoto is a notable inventor based in Okayama, Japan. He has made significant contributions to the field of medical technology, particularly in the development of surgical instruments for knee joint replacement procedures. With a total of 2 patents, his innovations aim to enhance the precision and effectiveness of surgical practices.
Latest Patents
Yamamoto's latest patents include an artificial knee joint and a surgical instrument used in artificial knee joint replacement surgery. The surgical instrument features a pre-cut trial that is mounted on a pre-cut line, which is cut shallower than a genuine-cut line. This pre-cut trial is designed to model the genuine implant, allowing surgeons to assess the appropriateness of the implant based on the resected surfaces of the femur. Additionally, he developed a bone resection jig that ensures equal ligament tension during extension and flexion positions without the need for actual measurements. This jig includes a spacer block, a reference pin guide, and an aiming member that assists in accurately determining the resection plane of the femur.
Career Highlights
Throughout his career, Keitarou Yamamoto has worked with Nakashima Medical Co., Ltd., where he has contributed to the advancement of medical devices. His work has been instrumental in improving surgical outcomes for patients undergoing knee joint replacement surgeries.
Collaborations
Yamamoto has collaborated with notable professionals in the field, including Ryutaku Kaneyama and Daisuke Maruyama. These collaborations have further enriched his work and contributed to the development of innovative surgical solutions.
Conclusion
Keitarou Yamamoto's contributions to surgical instrumentation reflect his commitment to improving medical practices. His patents demonstrate a blend of innovation and practicality, aimed at enhancing the quality of care for patients undergoing knee surgeries.