USPTO Patent Granted for Medical Implant Sealing Material

ChangeBridge: Patent Grants - Pharma (A61K)

Published March 24th, 2026

Detected March 25th, 2026

Summary

The USPTO has granted a patent (US12582751B2) to CORTRONIK GMBH for a novel sealing material designed for medical implants. The material comprises a composite structure with specific components and swelling properties intended for use in medical applications.

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What changed

The United States Patent and Trademark Office (USPTO) has granted patent US12582751B2 to CORTRONIK GMBH for a medical implant sealing material. The patent describes a composite material consisting of three components: a biologically inert polymer, a hydrogel that swells within a first time period, and a hygroscopic matrix that swells within a shorter second time period. This innovation aims to provide improved sealing capabilities for medical implants.

This patent grant is primarily an intellectual property event and does not impose direct compliance obligations on regulated entities. However, it may impact companies involved in the development, manufacturing, or marketing of medical implants and related sealing materials by potentially affecting market exclusivity and competitive landscapes. Companies operating in this space should be aware of this granted patent and its scope.

Source document (simplified)

← USPTO Patent Grants

Sealing material for a medical implant

Grant US12582751B2 Kind: B2 Mar 24, 2026

Assignee

CORTRONIK GMBH

Inventors

Nicolas Degen, Sebastian Kaule, Sabine Illner, Stefanie Kohse, Niels Grabow, Klaus-Peter Schmitz

Abstract

A sealing material suitable for a medical implant. The material includes a composite structure of a first component, a second component and a third component. The first component includes at least one biologically inert polymer. The second component includes a hydrogel, which swells up after contact with an aqueous solution by a first volume increase within a first time period. The third component includes a hygroscopic matrix, which swells up after contact with an aqueous solution by a second volume increase within a second time period. The second time period is shorter than the first time period.