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Kaneka Acquires Neurovascular Company EndoStream Medical

EndoStream is a manufacturer of technologies for cerebrovascular diseases, such as the Nautilus device for brain aneurysms.

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By: Sam Brusco

Associate Editor

Nautilus, a cerebral aneurysm treatment device. Photo: Business Wire.

Kaneka Corporation has acquired 96.8% of the shares of EndoStream Medical (ESM), an Israeli medical equipment company.

The company said by combining its and ESM’s technology, they will jointly develop new medical devices, mainly for cerebrovascular treatment. This is in addition to the Nautilus device for aneurysm treatment that’s currently under development.

The company aims to achieve sales of over 20 billion yen by 2030.

ESM manufactures technologies for cerebrovascular diseases. Its Nautilus device in development can treat aneurysms with wide openings in cerebral blood vessels. The device’s structure can be used with an aneurysm embolization coil to block blood flow to the aneurysm.

The product earned European regulatory approval in November 2024. The company has plans for U.S. approval and launch in spring 2026 and in Japan one year following.

Kaneka is developing its business in devices for treating cardiac, peripheral vascular, and cerebrovascular diseases, as well as medical devices used in the treatment of gastrointestinal tract diseases. The company’s i-ED coil is an embolization coil that prevents damage to cerebral aneurysms that cause subarachnoid hemorrhage.

The Health Care Solution Unit, which includes these medical businesses, aims to achieve sales of 300 billion yen by 2030.

In December 2023, Kaneka acquired all shares of Japan Medical Device Technology (JMDT), a developer of coronary stents and leader in development of bioresorbable stents.

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