Morselizing Copolymer Joint Depot for Synovial Drug Targeting

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Solution Overview

Problem

Current methods fail to effectively deliver pharmaceutically active principles to synovial and other joint tissues, leading to inadequate retention and modulation of drug release, necessitating a formulation that can target and morselize these tissues for prolonged drug delivery.

Innovation Solution

A biodegradable drug delivery composition comprising a triblock and diblock copolymer, administered to joints, undergoes morselization due to mechanical challenges, breaking into smaller pieces to enhance retention and targeted delivery of pharmaceutically active principles to synovial tissues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional drug delivery methods are used, then administration is simple, but retention and targeted delivery to synovial tissues is inadequate

Engineering Contradiction:

Improveretention and targeted deliveryVSAvoidformulation complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs composite polymer materials consisting of triblock and diblock copolymers with specific polyester and polyethylene glycol components. These composite materials provide enhanced retention and targeted delivery to synovial tissues through their biodegradable properties and mechanical challenges that promote morselization, directly resolving the contradiction between reliable delivery and formulation complexity

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The drug delivery composition is segmented into morsels through mechanical challenges in the joint environment. This segmentation allows the formulation to maintain simplicity in administration while achieving reliable retention and targeted delivery through the progressive breakdown into smaller pieces that can penetrate and persist in synovial tissues

Inventive Principle:

Principle #1Segmentation

2Duration of action of moving object

If drug delivery composition is administered as-is, then administration is simple, but release rate modulation is inadequate

Engineering Contradiction:

Improveduration of drug deliveryVSAvoidformulation preparation

Core Design Contradiction:

Duration of action of moving objectVSEase of manufacture

Solution Approach 1:

The formulation dynamically responds to mechanical challenges in the joint environment, transitioning from an intact state to morselized pieces over time. This dynamic behavior enables prolonged duration of action for drug delivery while maintaining ease of manufacture, as the morselization process occurs automatically upon administration without requiring complex preparation steps

Inventive Principle:

Principle #15Dynamics

3Reliability

If the formulation undergoes morselization, then retention and targeted delivery are enhanced, but the formulation structure becomes more complex

Engineering Contradiction:

ImproveretentionVSAvoidformulation structure

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The formulation is designed to undergo controlled segmentation into morsels through mechanical challenges. This segmentation enhances retention by allowing the drug-containing pieces to penetrate and persist in synovial tissues, while the underlying polymer structure remains stable and well-defined, thus resolving the contradiction between retention enhancement and structural stability

Inventive Principle:

Principle #1Segmentation

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 method achieves prolonged retention and targeted delivery of active principles to synovial tissues, modulating release rates and providing effective treatment for joint conditions.

Implementation Method 1

a biodegradable drug delivery composition comprising a triblock copolymer containing a polyester and a polyethylene glycol and a diblock copolymer containing a polyester and one end-capped polyethylene glycol

Methodology Applied

Scientific EffectHydrolysis: Hydrolysis

Implementation Method 2

undergoes morselization due to mechanical challenges, breaking into smaller pieces to enhance retention and targeted delivery

Methodology Applied

Scientific EffectMechanical degradation: Fracture Mechanics

Data Source

PatentUS12558309B2Method for morselizing and/or targeting pharmaceutically active principles to synovial tissue

Publication Date: 2026.02.24 MEDINCELL SA

AI summary

A method of targeting to the synovial tissue biodegradable drug delivery compositions or morselizing biodegradable drug delivery compositions are described. The biodegradable drug composition comprises a triblock copolymer containing a polyester and a polyethylene glycol and a diblock copolymer containing a polyester and an end-capped polyethylene glycol, as well as at least one pharmaceutically active principle is disclosed.