Polycyclic Polymer Release Regions for Controlled Drug Delivery
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Solution Overview
Problem
Current medical devices for in vivo delivery of therapeutic agents face challenges in controlling the rate and dose of agent release, which is crucial for effective treatment, due to limitations in the polymeric layers used.
Innovation Solution
Implantable or insertable medical devices are designed with polymeric release regions containing polycyclic-structure-containing polymers, which provide enhanced storage and controlled release of therapeutic agents through rigid, nonplanar polycyclic molecular structures, allowing for tailored release profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional polymeric layers are used for therapeutic agent delivery, then the medical device can be manufactured with standard materials, but the control over release rate and dose is limited
Solution Approach 1:
The patent applies parameter changes by incorporating polycyclic-structure-containing polymers with specific molecular structures (rigid, nonplanar configurations) to modify the polymeric layer's physical and chemical properties. These structural parameters enable precise control over therapeutic agent release rate and dose, allowing tailored release profiles that conventional polymeric layers cannot achieve.
Solution Approach 2:
The patent uses composite materials by combining polycyclic-structure-containing polymers with other polymeric components to create a multi-component polymeric layer. This composite structure leverages the rigid, nonplanar polycyclic units to provide enhanced control over release characteristics while maintaining the functional properties needed for medical device applications.
2Quantity of substance
If polymeric layers with standard structures are used, then the material selection is straightforward, but the storage capacity and diffusion control of therapeutic agents is insufficient
Solution Approach 1:
The patent applies porous materials by utilizing the inherent porosity and free volume created by rigid, nonplanar polycyclic structures within the polymeric layer. These polycyclic units create nanoscale pores and void spaces that enhance therapeutic agent storage capacity while the structured porosity provides controlled diffusion pathways, achieving both high storage capacity and controlled release.
Solution Approach 2:
The patent changes the molecular structure parameters of the polymeric layer by incorporating polycyclic units with specific spatial configurations. This structural parameter change increases the free volume and creates favorable environments for therapeutic agent storage and controlled diffusion, thereby enhancing storage capacity without requiring excessive complexity in the overall device structure.
3Duration of action of moving object
If conventional polymeric release layers are used, then the manufacturing process is simple, but the release profile cannot be precisely tailored for different treatment requirements
Solution Approach 1:
The patent applies parameter changes by modifying the chemical structure parameters of the polymeric layer through the incorporation of polycyclic-structure-containing polymers. These structural modifications enable precise control over release duration and profile, allowing the same polymeric layer to be adapted for different treatment requirements by adjusting polymer composition and structure rather than requiring entirely different materials.
Solution Approach 2:
The patent applies universality by developing a polymeric layer based on polycyclic structures that can serve multiple functions: controlling release rate, adjusting release duration, and tailoring release profiles for different therapeutic agents and treatment requirements. This universal polymeric platform reduces the need for multiple specialized materials and simplifies manufacturing across different application scenarios.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The use of polycyclic-structure-containing polymers in medical devices enables precise control over the release of therapeutic agents, enhancing storage capacity and diffusion, thereby improving treatment efficacy by ensuring consistent and controlled delivery.
Implementation Method 1
The therapeutic agent is disposed beneath or within the polymeric release region... enhanced storage and diffusion
Data Source
AI summary
According to an aspect of the present invention, implantable or insertable medical devices are provided, which contain polymeric release regions that control the release of one or more therapeutic agents. The polymeric release regions, in turn, contain one or more polymers that contain one or more rigid, nonplanar polycyclic molecular structures. The therapeutic agent is disposed beneath or within the polymeric release region.