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USPTO Patent Grant US12582756B2 for Extracorporeal Oxygenator

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Published March 24th, 2026
Detected March 25th, 2026
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Summary

The USPTO has granted patent US12582756B2 to Terumo Cardiovascular Systems Corporation for an extracorporeal oxygenator with an integrated air removal system. The patent, filed on June 21, 2023, describes a device that can be used during medical procedures such as open-heart surgery.

What changed

The United States Patent and Trademark Office (USPTO) has issued patent US12582756B2, granting exclusive rights to Terumo Cardiovascular Systems Corporation for an "Extracorporeal oxygenator with integrated air removal system." The patent, which has a grant date of March 24, 2026, and was filed on June 21, 2023, details a medical device designed for use in extracorporeal blood flow circuits, particularly during procedures like on-pump open-heart surgery. The innovation focuses on an integrated air removal structure, potentially comprising porous hollow fibers.

This patent grant signifies a new intellectual property right for Terumo Cardiovascular Systems Corporation concerning medical device technology. While not a regulatory mandate, it impacts the competitive landscape for manufacturers of extracorporeal oxygenators and related surgical equipment. Companies operating in this space, particularly those developing or marketing similar devices, should be aware of this granted patent to avoid potential infringement claims. No immediate compliance actions are required for entities not directly involved in manufacturing or selling this specific technology, but it highlights ongoing innovation and patent activity in the medical device sector.

Source document (simplified)

← USPTO Patent Grants

Extracorporeal oxygenator with integrated air removal system

Grant US12582756B2 Kind: B2 Mar 24, 2026

Assignee

Terumo Cardiovascular Systems Corporation

Inventors

Stephen Koellhoffer, Eisuke Sasaki

Abstract

Extracorporeal blood flow circuit devices can be used during medical procedures such as on-pump open-heart surgery. For example, extracorporeal heat exchange and oxygenation devices can be used to facilitate surgical procedures such as coronary artery bypass grafting. In some embodiments, such an oxygenation device can include an integrated air removal structure. In particular embodiments, the air removal structure can comprise one or more porous hollow fibers.

CPC Classifications

A61M 1/1698 A61M 1/1629 A61M 1/32 A61M 1/3623 A61M 1/3644

Filing Date

2023-06-21

Application No.

18212260

Claims

19

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Named provisions

Extracorporeal oxygenator with integrated air removal system

Source

Analysis generated by AI. Source diff and links are from the original.

Classification

Agency
USPTO
Published
March 24th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
US12582756B2

Who this affects

Applies to
Drug manufacturers Medical device makers
Industry sector
3345 Medical Device Manufacturing
Activity scope
Medical Device Development
Geographic scope
United States US

Taxonomy

Primary area
Healthcare
Operational domain
Product Development
Topics
Medical Devices Intellectual Property

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