Plug-type implant for biological tissue replacement and regeneration, and method for manufacturing said implant

The plug-shaped implant with specific polymer materials addresses the challenge of osteochondral defect regeneration by supporting bone and cartilage repair, offering durable cartilage regeneration and reducing the need for invasive joint replacement.

KR102998684B1Active Publication Date: 2026-08-03JOINTSPHERE BV
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Patent Information

Application Number
KR1020227000833
Authority / Receiving Office
KR · KR
Patent Type
Patents
Current Assignee / Owner
Priority Date
2019-06-27
Filing Date
2020-06-23
Publication Date
2026-08-03
Estimated Expiration
2040-06-23

AI Technical Summary

Technical Problem

Current treatments for osteochondral defects, such as osteoarthritis, lack a durable and effective method for regenerating articular cartilage, leading to joint degeneration and the need for artificial joint replacement, which is invasive and costly.

Method used

A plug-shaped implant with a base section for bone fixation, a middle section for cartilage replacement, and a top section for cartilage regeneration, using a combination of non-porous polyaryletherketone polymer and porous thermoplastic elastomer materials to support and stimulate natural cartilage growth.

Benefits of technology

The implant provides durable cartilage regeneration, improving load distribution and delaying the need for artificial joint replacement by promoting the growth of new hyaline cartilage, thus maintaining joint health and functionality.

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Abstract

A plug-shaped implant for tissue replacement and regeneration, comprising a base section (2) configured to be fixed to bone tissue, a middle section (3) configured to replace cartilage tissue, and an upper section (4) configured to grow cartilage tissue upward and inward, wherein the middle section and the upper section comprise the same thermoplastic elastomer material which is porous in the upper section and non-porous in the middle section, and the base section comprises a substantially non-porous polyaryletherketone polymer having a porosity of less than 20% based on the total volume of the polyaryletherketone polymer.
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