Catheter with Serially Connected Sensing Structures and Methods of Calibration and Detection
Summary
USPTO granted Patent US12594402B2 to Biosense Webster (Israel) Ltd. covering catheters with serially connected position and pressure sensing coils designed to reduce lead breakage and failure. The patent includes methods for calibration, position/pressure sensing, and detecting magnetic field interference between catheters or metal objects using dual sensor signals as an error-check mechanism.
What changed
USPTO granted Patent US12594402B2 to Biosense Webster (Israel) Ltd. covering magnetic field-responsive catheters with serially connected sensing structures for position and pressure detection. The invention uses serial connections between paired pressure sensing coils and position coils to minimize lead counts, reduce breakage, and enable backup/error-check functionality between dual sensor sets. The patent contains 19 claims including catheter apparatus claims, methods of calibrating position and pressure sensing, and methods of detecting magnetic field interference from external catheters or metal objects.
Medical device manufacturers developing magnetic field-responsive catheters with position and pressure sensing capabilities should conduct freedom-to-operate analysis to assess potential infringement exposure from these claims. Competitors designing around competing catheter technologies may need to consider alternative sensor connection architectures or pursue licensing negotiations with Biosense Webster.
Archived snapshot
Apr 17, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Catheter with serially connected sensing structures and methods of calibration and detection
Grant US12594402B2 Kind: B2 Apr 07, 2026
Assignee
Biosense Webster (Israel) Ltd.
Inventors
Jeffrey L. Clark, George Kamin, Mark Stanley
Abstract
A catheter is responsive to external and internal magnetic field generators for generating signals representing position and pressure data, with a reduced number of sensing coil leads for minimizing lead breakage and failure. The catheter includes a flexible joint with pressure sensing and position coils, at least pair of a pressure sensing coil and a position coil are serially connected. Methods of calibrating a catheter for position and pressure sensing, and detecting magnetic field interference with one catheter by another catheter or other metal or ferrous object advantageously use signals between two sets of sensors as a “back up” or “error check”.
CPC Classifications
A61M 25/0127 A61M 2025/0002 A61M 25/01 A61B 5/05 A61B 5/062 A61B 5/065 A61B 5/6852 A61B 5/72 A61B 18/1206 A61B 18/1492 A61B 5/6885 A61B 2018/00357 A61B 2018/00577 A61B 2034/2051 A61B 2090/065 A61B 18/12 A61B 18/14
Filing Date
2024-07-08
Application No.
18766370
Claims
19
Related changes
Get daily alerts for USPTO Patent Grants - Medical Devices (A61M)
Daily digest delivered to your inbox.
Free. Unsubscribe anytime.
Source
About this page
Every important government, regulator, and court update from around the world. One place. Real-time. Free. Our mission
Source document text, dates, docket IDs, and authority are extracted directly from USPTO.
The summary, classification, recommended actions, deadlines, and penalty information are AI-generated from the original text and may contain errors. Always verify against the source document.
Classification
Who this affects
Taxonomy
Browse Categories
Get alerts for this source
We'll email you when USPTO Patent Grants - Medical Devices (A61M) publishes new changes.
Subscribed!
Optional. Filters your digest to exactly the updates that matter to you.