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RIBS Inc.
Development of an Innovative Stent Graft System for Aortic Aneurysms in the Arch

As of December, 2025

City Year of Establishment Founder
Tokyo 2025 Takao Ohki
Partner VC Latest round of Fundraising Valuation
DIAMOND MEDINO CAPITAL Inc. Non-Disclosure Non-Disclosure
  • Contact Information: +81-3-6262-3222

Program name

Deep-Tech Startups Support Program

Research theme

Development of an Innovative Stent Graft System for Aortic Aneurysms in the Arch

Business Plan

Our mission is the global dissemination of the RIBS procedure, an innovative treatment for thoracic aortic aneurysms, and we aim to commercialize a dedicated stent graft system for this procedure.

Research Outline

Our ultimate goal is to develop and commercialize a dedicated device for the RIBS procedure—an innovative stent graft implantation technique for aortic aneurysms—enabling minimally invasive curative treatment for diverse anatomical challenges that were difficult with existing therapies. Specifically, during the STS phase, we aim to refine prototype development and establish a roadmap for transitioning to system-level product design.

Phase Business Area/Field Research Period Research Grant Amount
STS Healthcare 2025-2027FY JPY 499 million

International collaborative technology demonstration

Countries/Regions Collaborative activity outline
United States
  • - Supply chain development
During the STS phase, no overseas technical verification (including R&D) will be conducted under this grant program. However, in preparation for future international expansion, non-clinical trials are planned to be conducted at overseas facilities that meet regulatory standards compliant with global regulations.

Last Updated : April 21, 2026