Clinical Research Innovation and Education Center Tohoku University Hospital

Clinical Research, Innovation and Education Center, Tohoku University Hospital

Tohoku University Hospital Clinical Research Center, as well as to support the research and development of the medical system, we will bridge to practical use in a clinical setting the results of basic research.

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Teiji Tominaga

Development of Pulsed Water Jet Device for achieving both maximum lesion removal and function maintenance through preservation of small vessels and nerves

Development supervisor

Teiji Tominaga
Professor, Department of Neurosurgery, Tohoku University Graduate School of Medicine

Innovative surgical device without heat damage, which finally promotes the quality of life (QOL) of postoperative patients.

Teiji Tominaga image

Water jet technology facilitates tissue dissection without damaging small vessels and nerves. Our team applied micro liter per shots pulsed water jet available a surgical device for first time in the world, seeking to achieve both maximum lesion removal and function maintenance through preservation of small vessels and nerves. Our technology not only decreases physical burden and increases safety on a patients, but also differentiates from competitive technology in terms of miniaturization, which promotes bringing this technology into minimally invasive surgery, such as endoscopy or even robotic surgery. We have already showed proof of concepts in microscopic, neuroendoscopic environment in animal studies using various methods, such as immunohistochemistory and electophysiological measurement. We have also started to show clinical proof of concepts in neurosurgery including socioeconomical impact of this technology.

Seeking for NEW VALUE

Consideration of human engineering (ergonomics)

Our goal is not only delivering excellent technology for better dissection but also making it more user friendly through ergonomic approach. We believe that surgical instrument with less fatigue will create better surgeon’s performance, finally better outcome for the patients. At CRIETO, we have been working in multidisciplinary team, trying to create a value that can be contributed for delivering excellent medical patients with less cost.


Providing platform for multidisciplinary team

Many physicians and researchers from various regions including the cerebrospinal field participated in product development. Active discussions with many staff members were carried out daily with the common goal of “producing something never seen before.”



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