The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 2025
Filed:
Feb. 28, 2020
The University of Bristol, Bristol, GB;
Cambridge Enterprise Limited, Cambridge, GB;
Raimondo Ascione, Bristol, GB;
Geoffrey Moggridge, Cambridge, GB;
Joanna Stasiak, Cambridge, GB;
Marta Serrani, Cambridge, GB;
Eugenia Biral, Cambridge, GB;
THE UNIVERSITY OF BRISTOL, Bristol, GB;
CAMBRIDGE ENTERPRISE LIMITED, Cambridge, GB;
Abstract
A method of manufacturing a heart valve comprises: a step of injection moulding a first part of the heart valve from a first block-copolymer, wherein the injection moulding is performed at a temperature below an order-disorder transition temperature of the block copolymer, such that a phase structure is present in the molten block-copolymer; a step of injection moulding a second part of the heart valve from a second block-copolymer that is different to the first block-copolymer, by over-moulding over the first part to form an over-moulded structure, wherein the injection moulding is performed at a temperature below order-disorder transition temperatures for the first and second block copolymers, such that a phase structure is present in the molten second block-copolymer and remains present in the first block-copolymer; and a step of cooling the over-moulded structure, without heating it above the order-disorder transition temperatures between the step of injection moulding the second part and the step of cooling, so as to preserve an arrangement of the phase structures created during the steps of injection moulding and produce anisotropic physical properties in the second part.