Steerable sheath with variable curve span

ChangeBridge: Patent Grants - Medical Devices (A61M)

Published March 31st, 2026

Detected March 31st, 2026

Summary

USPTO granted Patent No. US12589219B2 to Biosense Webster (Israel) Ltd. for a steerable sheath with variable curve span used in cardiovascular catheter procedures. The patent covers a guiding sheath assembly with adjustable deflection curvature controlled by a stiffener member. Inventors include Raymond Yue-sing Tang, Mark T. Stanley, and Christopher T. Beeckler.

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What changed

USPTO issued Patent No. US12589219B2 for a steerable guiding sheath assembly with variable curve span designed for cardiovascular catheter procedures. The patent claims a shaft operable to define multiple deflection curvatures, featuring a proximal section, distal section with lateral bias, and a stiffener member that counteracts distal shaft bias to enable curvature selection. The patent includes 15 claims and covers CPC classifications A61M 25/0102, A61M 25/0138, and related cardiac access device categories.

This patent grant does not impose any compliance obligations on medical device manufacturers or healthcare providers. No action is required by regulated entities. The patent provides intellectual property protection to Biosense Webster (Israel) Ltd. and may be relevant for freedom-to-operate analyses when developing similar catheter guidance systems. Healthcare providers using cardiovascular catheters do not need to alter current practices.

Source document (simplified)

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Steerable sheath with variable curve span

Grant US12589219B2 Kind: B2 Mar 31, 2026

Assignee

Biosense Webster (Israel) Ltd.

Inventors

Raymond Yue-sing Tang, Mark T. Stanley, Christopher T. Beeckler

Abstract

A guiding sheath assembly has a shaft that is operable to define more than one deflection curvature and defines a lumen to slidably receive a cardiovascular catheter. The guiding sheath assembly includes a proximal section, a distal section, and a stiffener member. The proximal section has a proximal shaft that defines a proximal lumen extending distally along a longitudinal axis to the distal section. The distal section has a distal shaft that defines a distal lumen that is configured to be biased (e.g., resiliently biased) laterally away from the longitudinal axis. The stiffener member is a rigid elongate member, such as an inner tubular member, that is configured to counteract the bias of the distal shaft. Longitudinal movement of the stiffener member relative to the distal section enables an operator to select and set a deflection curvature of the more than one deflection curvature.