Cardiac catheter with magnetic deflection sensor

ChangeBridge: Patent Grants - Diagnosis & Surgery (A61B)

Published April 7th, 2026

Detected April 7th, 2026

Summary

USPTO granted patent US12594000B2 to St. Jude Medical International Holding for a cardiac catheter with a deformable body that deflects in response to force on the catheter tip. The patent covers a magnetic field sensor and permanent magnet system that detects deflection through changes in magnetic fields, with controller circuitry that associates sensor signals with force measurements. The patent contains 22 allowed claims.

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What changed

USPTO issued patent US12594000B2 for a cardiac catheter with magnetic deflection sensing capabilities. The invention enables real-time measurement of tip deflection and applied force during cardiac procedures through a magnetic field sensor and permanent magnet arrangement. The patent expires February 6, 2038 (20 years from filing).\n\nMedical device manufacturers developing cardiac ablation or intracardiac sensing catheters should review the 22 claims for potential infringement exposure. St. Jude Medical gains enforceable exclusive rights to this deflection sensing technology, which may impact competitive product development strategies in the cardiac catheter market.

What to do next

Review patent claims for potential infringement if developing similar cardiac catheter technology
Consider licensing opportunities with St. Jude Medical

Source document (simplified)

← USPTO Patent Grants

Cardiac catheter with deformable body

Grant US12594000B2 Kind: B2 Apr 07, 2026

Assignee

St. Jude Medical International Holding S.á r.l.

Inventors

Alexandre Romoscanu

Abstract

Aspects of the instant disclosure relate to various types of medical catheters with a deformable body that deflect in response to a force exerted on the catheter tip. A magnetic field sensor and permanent magnet respectively coupled on either side of the deformable body are used to determine a change in a magnetic field associated with the deflection of the catheter tip. Controller circuitry may receive a signal from the magnetic field sensor indicative of the deflection of the deformable body and associate the signal with the force exerted.