Invention Application
- Patent Title: METHOD OF MAKING A COMPOSITE BIOTEXTILE AND A MEDICAL IMPLANT COMPRISING SUCH COMPOSITE BIOTEXTILE
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Application No.: US18946674Application Date: 2024-11-13
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Publication No.: US20250065013A1Publication Date: 2025-02-27
- Inventor: Nicolaes Hubertus Maria DE BONT , Noel L. DAVISON , Mandy Maria Jozefina WIERMANS
- Applicant: DSM IP Assets B.V.
- Applicant Address: NL Maastricht
- Assignee: DSM IP Assets B.V.
- Current Assignee: DSM IP Assets B.V.
- Current Assignee Address: NL Maastricht
- Priority: EP19163075.2 20190301
- Main IPC: A61L27/34
- IPC: A61L27/34 ; A61L27/18 ; A61L27/26 ; D06N3/00 ; D06N3/14

Abstract:
Methods of making a composite fabric for use in or as a medical implant component are disclosed whereby the method includes the steps of providing a textile comprising at least one strand having titer of 2-250 dtex and comprising fibers made from a biocompatible and biostable synthetic polymer; determining locations on the textile where a cut is to be made for an intended use of the textile; optionally pretreating the textile at least at the determined locations on at least one side of the textile with a high-energy source to activate the surface; solution coating the textile at least at a determined location with a coating composition comprising a biocompatible and biostable polyurethane elastomer and a solvent for the polyurethane; removing the solvent from the coated textile; and laser cutting the coated textile as obtained at least a one coated location with an ultra-short pulse laser; to result in a composite biotextile wherein polyurethane is present in an amount of 2.5-90 mass % based on composite biotextile and polyurethane is present at least at a laser-cut edge.
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