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Disposable Fluid Circuits for Extracorporeal Photopheresis with Integrated Source of Photoactive Agent

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Published March 25th, 2026
Detected April 1st, 2026
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Summary

The European Patent Office published patent application EP3939633A1 for Fenwal, Inc., covering disposable fluid circuits for extracorporeal photopheresis procedures with an integrated photoactive agent source. The patent application was filed with inventors Tanima Jahan Abedin and Katherine Radwanski and has been designated across 44 European states including all EU member states.

What changed

The EPO published Fenwal's patent application EP3939633A1, a utility patent (Kind A1) for disposable fluid circuits used in extracorporeal photopheresis with an integrated source of photoactive agent. The patent was filed under IPC classifications A61M 1/02 and A61M 1/36 and has been designated across 44 European contracting and extension states including all EU member states, Switzerland, Norway, Turkey, and the United Kingdom.

Healthcare providers and medical device manufacturers should review this patent publication to assess potential impacts on existing or planned photopheresis products and procedures. No immediate compliance action is required as this is an informational patent publication; however, entities developing similar technology should evaluate freedom-to-operate considerations and potential licensing needs.

Source document (simplified)

← EPO Patent Bulletin

DISPOSABLE FLUID CIRCUITS FOR EXTRACORPOREAL PHOTOPHERESIS WITH INTEGRATED SOURCE OF PHOTOACTIVE AGENT

Publication EP3939633A1 Kind: A1 Mar 25, 2026

Applicants

Fenwal, Inc.

Inventors

ABEDIN, Tanima Jahan, RADWANSKI, Katherine

IPC Classifications

A61M 1/02 20060101AFI20211129BHEP A61M 1/36 20060101ALI20211129BHEP

Designated States

AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR

View original document →

Source

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

Classification

Agency
EPO
Published
March 25th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
EP3939633A1

Who this affects

Applies to
Healthcare providers Medical device makers
Industry sector
3345 Medical Device Manufacturing
Activity scope
Medical Device Patents
Geographic scope
European Union EU

Taxonomy

Primary area
Intellectual Property
Operational domain
Legal
Topics
Healthcare Medical Devices

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