USPTO Patent Grant: Self-extendable Pulmonary Artery Stent

ChangeBridge: Patent Grants - Prosthetics (A61F)

Published March 24th, 2026

Detected March 24th, 2026

Summary

The USPTO has granted patent US12582748B2 for a self-extendable pulmonary artery stent with a dry valve. The patent, assigned to P+F Products + Features GmbH, details a stent design with specific features for fixation and valve attachment, along with a delivery device.

View original document View source feed page

What changed

The United States Patent and Trademark Office (USPTO) has granted patent US12582748B2, titled 'Self-extendable pulmonary artery stent with dry valve.' This patent, assigned to P+F Products + Features GmbH, covers a specific design for a self-expandable stent intended for pulmonary artery use. Key features include a dry valve made of bovine pericardium, a surrounding skirt, eyelets for arterial fixation, and a frame with interconnected sections. The patent also describes a delivery device for this stent, featuring a flush port, main body, and an actuation mechanism with torque control.

This patent grant is primarily an intellectual property notification and does not impose new regulatory obligations on medical device manufacturers. However, it signifies a new innovation in the field of cardiovascular stents. Companies involved in the design, manufacturing, or distribution of pulmonary artery stents should be aware of this patented technology to ensure freedom to operate and to identify potential licensing or infringement risks. No immediate compliance actions are required based solely on this patent grant.

Source document (simplified)

← USPTO Patent Grants

Self-extendable stent for pulmonary artery

Grant US12582748B2 Kind: B2 Mar 24, 2026

Assignee

P+F Products + Features GmbH

Inventors

Guilherme Agreli, Katharina Kiss, Siegfried Einhellig

Abstract

The invention relates to a self-expandable stent, especially a pulmonary stent, with a proximal section, a middle section and a distal section arranged at a longitudinal axis of the stent, the stent having a dry valve made of bovine pericardium arranged at the middle section thereof, a skirt surrounding the dry valve at least at the middle section and made of one of bovine pericardium and polyester, wherein the stent further comprises eyelets arranged at a distal end at the distal section and/or a proximal end at the proximal section for fixing the stent at an artery, and wherein the stent comprises a frame composed of a plurality of arms forming the proximal, the middle and the distal section with the sections being interconnected, and the stent comprising a fixture area at the middle section of the frame with the arms being arranged in parallel to each other at the fixture area and the middle section comprising one or more fixture openings at said fixture area for fixing the valve at the frame. The invention further relates to A delivery device for delivering a self-expandable stent according to claims 1 to 14, the delivery device comprising a flush port, a main body part for holding, inflating and/or releasing the stent, and an actuation mechanism for moving the stent to a delivery site, and/or wherein the actuation mechanism has a torque control and can rotate the stent about an axis of the main body, and/or the delivery device having a knob or the like at the actuation mechanism, with the knob in particular being able to be rotated about an axis of rotation of the actuation mechanism.