SMP Foams Radially Expand to Seal Heart Valve Gaps
Summary
Landon D. Nash has filed USPTO Patent Application US20260108350A1 for individual shape memory polymer (SMP) foams that radially expand to seal gaps around heart valves that are improperly seated, have unusual cross sections, or have poor apposition against calcified lesions. The application, filed December 19, 2025 with application number 19426276, covers multiple CPC classifications related to foam materials and cardiac implants.
“An embodiment includes individual SMP foams that radially expand and fill gaps around a heart valve that may be improperly seated, in an unusual cross section, or has poor apposition against a calcified lesion.”
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GovPing monitors USPTO Patent Applications - Prosthetics (A61F) for new healthcare & life sciences regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 222 changes logged to date.
What changed
USPTO published Patent Application US20260108350A1 for shape memory polymer foam technology designed to seal gaps around improperly seated heart valves. The application covers SMP foams that radially expand to fill spaces when a valve is improperly seated, has an unusual cross section, or demonstrates poor apposition against a calcified lesion.
Medical device manufacturers developing cardiac valve technologies should note this filing as it may represent a competing or complementary approach to current valve sealing solutions. The broad CPC classification coverage (A61F, A61L, C08J) suggests the technology may have applications extending beyond valve sealing to other implantable foam devices.
Archived snapshot
Apr 24, 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.
SHAPE MEMORY POLYMER FOAMS TO SEAL SPACE AROUND VALVES
Application US20260108350A1 Kind: A1 Apr 23, 2026
Inventors
Landon D. Nash
Abstract
An embodiment includes individual SMP foams that radially expand and fill gaps around a heart valve that may be improperly seated, in an unusual cross section, or has poor apposition against a calcified lesion. Other embodiments are described herein.
CPC Classifications
A61F 2/2418 A61L 27/042 A61L 27/045 A61L 27/06 A61L 27/18 A61L 27/26 A61L 27/34 C08J 9/228 A61F 2/2412 A61F 2210/0014 A61F 2210/0071 A61F 2250/0039 C08J 2375/12
Filing Date
2025-12-19
Application No.
19426276
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