Access Systems, Devices, and Methods Thereof for Acute Dialysis Catheter

ChangeBridge: Patent Grants - Medical Devices (A61M)

Published March 31st, 2026

Detected March 31st, 2026

Summary

The USPTO granted Patent US12589228B2 to Bard Access Systems, Inc. covering access systems, devices, and methods for acute dialysis catheters. The patent includes a frame, housing, pair of guidewire clamps, needle, and dilator assembly designed for internal body access. The patent contains 19 claims and was granted March 31, 2026.

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What changed

USPTO granted Patent US12589228B2 to Bard Access Systems, Inc. for an acute dialysis catheter access device. The invention comprises a frame with a housing, pair of guidewire clamps for clamping an access guidewire, a needle with a hub disposed between the clamps, and a dilator extending from the frame. The needle shaft extends beyond the dilator distal end to establish an insertion site for the acute dialysis catheter.

Medical device manufacturers developing similar catheter insertion systems should review the 19 patent claims to assess potential infringement risks. Companies may need to design around these claims or pursue licensing arrangements with Bard Access Systems for related product development.

Source document (simplified)

← USPTO Patent Grants

Access systems, devices, and methods thereof

Grant US12589228B2 Kind: B2 Mar 31, 2026

Assignee

Bard Access Systems, Inc.

Inventors

Gokulrangarajan Sathyanarayanan

Abstract

Disclosed are access systems, devices, and methods for internal access to a patient's body. For example, an access device for placing an acute dialysis catheter can include a frame; a housing, a pair of guidewire clamps, and a needle disposed on the frame; a dilator coupled to the frame, and an access guidewire in a ready-to-deploy state of the access device. The pair of guidewire clamps can be disposed on the frame between an end portion of the frame and a distal end of the housing for clamping the access guidewire. A needle hub of the needle can be disposed on the frame between the pair of guidewire clamps. The dilator can distally extend from the end portion of frame. A needle shaft of the needle can distally extend beyond a distal end of the dilator allowing the needle to establish an insertion site for the acute dialysis catheter.

CPC Classifications

A61M 25/09041 A61M 25/003 A61M 25/065 A61M 29/02 A61M 2025/0031 A61M 2025/09125 A61M 25/0113 A61M 29/00 A61M 25/0606 A61M 25/01 A61M 25/0612 A61M 25/011 A61M 1/3661 A61B 17/3415 A61B 17/3439