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N.B.Medical Inc.
Development of Neuroendovascular Treatment Devices with a Novel Antithrombotic

As of June, 2026

City Year of Establishment Founder
Chuo-ku, Tokyo 2021 Kazuya Shobayashi
Partner VC Latest round of Fundraising Valuation
JAFCO Group Co., Ltd. Series B' Non-Disclosure

Program name

Deep-Tech Startups Support Program

Research theme

Development of Neuroendovascular Treatment Devices with a Novel Antithrombotic

Business Plan

Currently, there are clinical issues with stents used for the treatment of cerebral aneurysms. In this project,an optimally structured stent will be designed using proprietary computer simulation technology, and a nextgeneration stent will be developed using an antithrombotic coating developed with AIST. The company aims to obtain regulatory approvals in Japan and overseas. Applications to other diseases will also be considered, with the aim of obtaining regulatory approvals as well.

Research Outline

In this research and development project, an antithrombotic-coated stent improved from an existing cerebral aneurysm treatment stent will be developed, and by implementing improved safety during long-term implantation and a thrombus formation suppression function, which are different from conventional products,the project aims to solve issues in the treatment of cerebral aneurysms.

Phase Business Area/Field Research Period Research Grant Amount
PCA Healthcare 2026-2027FY JPY 800 million

International collaborative technology demonstration

Countries/Regions Collaborative activity outline
Asia, Europe
  • - Contract with local partners
  • - Relationship development with potential local partner
With a view to obtaining regulatory approvals in Asia and Europe, the company will collaborate with local universities and medical institutions to establish internal systems for clinical trials and prepare regulatory applications.

Last Updated : October 5, 2026