How RIBS Works

What Is an Aortic Aneurysm?

An aortic aneurysm is a condition in which the aorta—the body's largest artery, carrying blood from the heart to the rest of the body—becomes abnormally enlarged, creating a significant risk of rupture. Once rupture occurs, it becomes a life-threatening medical emergency with a very high mortality rate, and survival remains difficult even with immediate emergency surgery.

ーCurrent Treatment Landscape and Challengesー

Once an aortic aneurysm reaches a certain size, treatment becomes essential to prevent rupture. Currently, there are two primary treatment options:

* Open Surgical Repair (Aortic Graft Replacement)
A highly effective treatment option, but one that requires major surgery and is associated with significant procedural invasiveness.
* Endovascular Aneurysm Repair (Stent Graft Placement)
A minimally invasive treatment that has become widely adopted due to its reduced procedural burden and faster recovery.

However, a major challenge has remained in the treatment of aortic arch aneurysms.

Because the aortic arch gives rise to critical branch vessels that supply blood to the brain, conventional stent graft therapy has been difficult to apply in this region.

Overcoming the Barriers to Endovascular Treatment for Aortic Arch Aneurysms

The Innovative： “RIBS” Stent Graft System

RIBS: A Retrograde Fenestration Technique with Branch Stent Graft Placement Through Cervical Access

（Retrograde in-situ Branched Stent Grafting）

Making the Impossible Possible
A Revolutionary Approach to Endovascular Treatment for Aortic Arch Aneurysms

RIBS is a proprietary technology that secures blood flow to the supra-aortic branch vessels after stent graft deployment. Rather than forcing patients to conform to a fixed device design, RIBS is designed to adapt to each patient's unique anatomy, accommodating variations in branch vessel angulation and aortic arch morphology. This innovative approach enables endovascular treatment of aortic arch aneurysms, a region that has traditionally been considered one of the most challenging for endovascular repair.

Through the commercialization of the RIBS Stent Graft System, we are challenging long-standing limitations and establishing a new standard of care for the treatment of aortic arch aneurysms.

The RIBS Stent Graft System is an innovative medical device that enables fully endovascular treatment of aortic arch aneurysms without the need for open-chest surgery or cardiopulmonary bypass.

It is intended not only for patients who were previously considered unsuitable for surgery, but also for those at high surgical risk due to advanced age or significant comorbidities, providing a new treatment option for patients with limited therapeutic alternatives. Our mission is to save as many lives as possible by expanding access to minimally invasive treatment.

By significantly reducing procedural invasiveness and the risk of complications, the RIBS Stent Graft System also supports faster postoperative recovery and improved quality of life (QOL), helping deliver safer and better care for every patient.