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Ablation probes including flexible circuits for heating and sensing

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Published April 7th, 2026
Detected April 8th, 2026
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Summary

The USPTO granted patent US12594113B2 to Varian Medical Systems, Inc. for an ablation probe incorporating flexible circuits with radio frequency emitters for delivering RF energy to target tissue. The patent claims a shell with cryogen supply conduit and flexible circuit positioned on the outer surface. The patent contains 19 claims and was filed on June 21, 2022.

What changed

USPTO issued Patent No. US12594113B2 to Varian Medical Systems, Inc. for an ablation probe device featuring flexible circuits positioned on the probe shell outer surface. The flexible circuit includes at least one RF emitter for delivering RF energy to target tissue during ablation treatments. The probe also includes a cryogen supply conduit positioned within the shell. The patent grants Varian exclusive rights to this medical device technology.

Medical device manufacturers in the ablation therapy space should monitor this patent portfolio. Competitors developing similar flexible circuit-based ablation probes may need to evaluate potential infringement risks or consider alternative design approaches. This grant strengthens Varian's intellectual property position in RF ablation technology.

What to do next

  1. Monitor for updates

Source document (simplified)

← USPTO Patent Grants

Ablation probes including flexible circuits for heating and sensing

Grant US12594113B2 Kind: B2 Apr 07, 2026

Assignee

Varian Medical Systems, Inc.

Inventors

Hongxuan Zhang

Abstract

A probe for performing an ablation treatment includes a shell defining an outer surface and a cryogen supply conduit positioned in the shell. The probe also includes a flexible circuit positioned on at least a portion of the outer surface of the shell. The flexible circuit includes at least one radio frequency (RF) emitter for delivering RF energy to a target tissue.

CPC Classifications

A61B 2018/00023 A61B 18/02 A61B 18/1815 A61B 2018/0212

Filing Date

2022-06-21

Application No.

17845647

Claims

19

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Source

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

Classification

Agency
USPTO
Published
April 7th, 2026
Instrument
Notice
Legal weight
Binding
Stage
Final
Change scope
Minor
Document ID
US12594113B2

Who this affects

Applies to
Medical device makers
Industry sector
3345 Medical Device Manufacturing
Activity scope
Patent grant Medical device IP RF ablation technology
Geographic scope
United States US

Taxonomy

Primary area
Intellectual Property
Operational domain
Legal
Topics
Medical Devices Healthcare

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