ASAHI INTECC Guide Wire Patent

ChangeBridge: Patent Grants - Medical Devices (A61M)

Published March 31st, 2026

Detected March 31st, 2026

Summary

USPTO granted patent US12589227B2 to ASAHI INTECC CO., LTD. for a guide wire invention featuring a core shaft with a distal end portion having oblateness between 7% and 35%. The patent includes 6 claims covering devices in the A61M classification. This is an informational patent grant with no regulatory compliance requirements.

View original document View source feed page

What changed

USPTO granted patent US12589227B2 to ASAHI INTECC CO., LTD. on March 31, 2026. The patent covers a guide wire with a core shaft design where the distal end portion has oblateness (ratio of diameter difference to maximum diameter) between 7% and 35%, enabling predictable bending in specific plane directions. The patent includes 6 claims and lists inventors Keisuke Ushida and Naozumi Iwata.

This patent grant is informational and creates no compliance obligations or deadlines for medical device manufacturers, competitors, or healthcare providers. No regulatory action, filing, or monitoring is required as a result of this grant. It serves as an intellectual property record rather than a regulatory directive.

Source document (simplified)

← USPTO Patent Grants

Guide wires

Grant US12589227B2 Kind: B2 Mar 31, 2026

Assignee

ASAHI INTECC CO., LTD.

Inventors

Keisuke Ushida, Naozumi Iwata

Abstract

A guide wire in which a distal end portion of the guide wire can be easily bent in a specific plane direction in shaping, is provided. A guide wire includes a core shaft having a maximum diameter in a cross section orthogonal to an axial direction of the core shaft and an orthogonal diameter in a direction orthogonal to a direction of the maximum diameter, the core shaft includes a first specific portion located on a distal end side of the core shaft and having an oblateness between 7% and 35%, where oblateness is defined as the difference between the maximum diameter and the orthogonal diameter divided by the maximum diameter. The first specific portion of the core shaft can be 5 mm or more in the axial direction.

CPC Classifications

A61B 18/1492 A61B 2018/00011 A61B 2018/00351 A61B 2018/00577 A61B 2018/0091 A61B 2218/002 A61B 2562/0247 A61B 5/6852 A61M 2025/0002 A61M 2025/0681 A61M 2205/0294 A61M 2205/3317 A61M 2205/332 A61M 2205/581 A61M 2205/583 A61M 25/0133 A61M 25/0136 A61M 25/0147 A61M 25/0662 A61M 5/1411 A61M 5/162 A61M 5/16813 F24F 1/0007