Epicardial Device and Methods for Right Heart Support During LVAD
Summary
The USPTO published patent application US20260090887A1 for an epicardial implant system designed to prevent right heart failure following left ventricular assist device (LVAD) implantation. Inventor John M. MacMahon's device provides dual-mechanism support through separate adjustable elements for ventricular wall constraint and tricuspid valve annular geometry optimization. Preclinical validation demonstrated six-minute implantation with independent component efficacy.
What changed
The USPTO published patent application US20260090887A1 filed September 15, 2025 (Application No. 18831793) for an epicardial implant system invented by John M. MacMahon. The invention addresses right heart failure occurring in approximately 40% of LVAD recipients through dual-mechanism prophylaxis: a ventricular component preventing dilation and an annular component reducing tricuspid regurgitation. The device enables atraumatic anchoring with repositioning capability and eliminates atriotomy requirements through epicardial placement. Applications extend beyond LVAD to coronary bypass and valvular corrections, including biodegradable embodiments for pediatric cardiac growth.
This patent publication does not impose compliance obligations on healthcare providers or medical device manufacturers. Entities involved in cardiac assist device development or clinical cardiac procedures may review the claims for potential licensing considerations or to assess competitive landscape. No action is required for standard compliance programs; this is informational only.
Archived snapshot
Apr 2, 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.
Epicardial device and methods for right heart support during LVAD and cardiac procedures
Application US20260090887A1 Kind: A1 Apr 02, 2026
Inventors
John M. MacMahon
Abstract
An epicardial implant system prevents right heart failure following left ventricular assist device (LVAD) implantation through dual-mechanism support of the right ventricular free wall and tricuspid valve annulus. The device comprises a biocompatible independent adjustment mechanisms for ventricular wall constraint and annular geometry optimization. The invention simultaneously treats both ventricular dilation and annular valve dysfunction through separate adjustable elements. Epicardial placement eliminates atriotomy requirements while providing real-time hemodynamic optimization. Atraumatic anchoring permits repositioning without tissue damage. Preclinical validation confirms six-minute implantation with independent component efficacy under afterload conditions. The ventricular component prevents dilation while the annular component reduces regurgitation, validating dual-mechanism necessity. The prophylactic approach addresses mechanical disruption causing right heart failure in 40% of LVAD recipients. Applications extend beyond LVAD to coronary bypass, and valvular corrections. Biodegradable embodiments accommodate pediatric cardiac growth. The system provides the first dedicated prophylactic intervention for post-surgical right heart failure across multiple cardiac procedures.
CPC Classifications
A61F 2/2481 A61F 2/2442 A61F 2/482 A61M 60/178 A61F 2220/0008 A61F 2250/0001
Filing Date
2025-09-15
Application No.
18831793
Named provisions
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