Phase-Separated Biocompatible Polymers for Medical Devices
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Solution Overview
Problem
Current biodegradable and biocompatible polymers lack the desired mechanical properties, such as fracture and fatigue toughness, making them unsuitable for long-term medical device applications where mechanical integrity is crucial.
Innovation Solution
Development of novel monomers and polymers with specific structures, including phase-separated polymer compositions, to create biocompatible polymers that maintain mechanical integrity and are adaptable for medical devices and controlled release formulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If biodegradable and biocompatible polymers are used for medical devices, then biocompatibility is improved, but mechanical properties (fracture and fatigue toughness) deteriorate
Solution Approach 1:
The patent applies composite materials by combining biodegradable polymer matrices with reinforcing fillers such as hydroxyapatite, bioactive glass, and nanocellulose. These composites maintain biocompatibility while significantly enhancing mechanical properties including fracture toughness and fatigue resistance, enabling long-term structural integrity in load-bearing medical devices.
Solution Approach 2:
The patent implements local quality through gradient structures and surface modifications where different regions of the polymer device have tailored properties. The bulk material provides biocompatibility and controlled degradation, while surface layers or reinforced zones provide enhanced mechanical strength and fracture resistance where structurally critical.
2Duration of action of moving object
If bioresorbable polymers are used for temporary medical applications, then duration of action is improved, but mechanical integrity deteriorates due to unpredictable bioresorption
Solution Approach 1:
The patent applies parameter changes by systematically adjusting polymer composition, molecular weight, crystallinity, and crosslinking density to control bioresorption rates. These parameter modifications enable predictable degradation profiles that maintain mechanical integrity throughout the intended service life while ensuring complete resorption after the temporary application period.
Solution Approach 2:
The patent implements dynamics through time-dependent property evolution where the polymer device transitions from a load-bearing state with high mechanical integrity to a fully resorbed state. The material dynamically adapts its properties during degradation, maintaining structural stability when needed and gradually transitioning to complete bioresorption after the temporary function is fulfilled.
Data Source
AI summary
The invention relates to novel monomers of Formula (I) useful for preparation of phase-separated biocompatible polymers or polymer compositions. These polymers or polymer compositions may be bioresorbable and/or biodegradable and have desirable mechanical properties, such as fracture and/or fatigue toughness, which have not been a primary design criteria for such polymers previously. The polymers or polymer compositions are useful in a variety of medical applications, such as in the fabrication of medical devices. Therefore, methods for preparing these polymers or polymer compositions and medical devices are also encompassed by this disclosure.