Pharmaceutical Analysis Apparatus Simulating GI Tract Forces
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Solution Overview
Problem
Contemporary dissolution devices fail to accurately replicate the conditions of the gastrointestinal tract, such as digestive forces and peristaltic actions, which affects the prediction of active agent release from pharmaceutical products.
Innovation Solution
A pharmaceutical analysis apparatus that applies controlled and variable forces to simulate gastrointestinal tract conditions using a programmable logic controller, retrofittable to existing devices, with a force application system that includes a piston and mesh screen to mimic digestive forces and peristalsis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If contemporary dissolution devices (basket-type, paddle-type, reciprocating cylinder-type) are used for quality control of drug release rates, then the devices can mix the solution and collect samples at selected intervals, but they fail to adequately replicate the conditions that a dosage form encounters in the gastro-intestinal tract, including digestive forces and peristaltic actions
Solution Approach 1:
The patent applies dynamic force application to the dosage form, transitioning from static dissolution testing to dynamic simulation of GI tract conditions. The apparatus applies varying forces including compression and peristaltic-like actions that dynamically change over time, enabling accurate replication of in-vivo conditions while maintaining measurement precision for active agent release prediction
Solution Approach 2:
The invention changes key physical parameters of the dissolution environment by applying controlled mechanical forces, compression loads, and peristaltic motions to the dosage form. These parameter changes include force magnitude, frequency, and duration, which collectively enable the system to simulate diverse GI tract conditions and improve both measurement accuracy and adaptability
2Measurement precision
If a force application system is added to simulate peristaltic actions and digestive forces, then the apparatus can more accurately replicate GI tract conditions, but the device complexity increases
Solution Approach 1:
The force application system is designed with multi-functionality, where a single apparatus can apply various types of forces (compression, peristaltic actions, mechanical stress) through programmable control. This universal design enables the system to simulate multiple GI tract conditions without requiring separate specialized devices for each force type, thereby managing complexity while maintaining measurement precision
Solution Approach 2:
The patent replaces complex mechanical force application mechanisms with a programmable logic controller that coordinates simpler mechanical components. The PLC-based control system substitutes elaborate mechanical linkages with electronic control, reducing mechanical complexity while enabling precise application of varied forces to maintain accurate active agent release prediction
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 apparatus provides more accurate prediction of active agent release, improving the analysis of controlled and extended release products by simulating in-vivo conditions, potentially reducing the need for clinical studies.
Implementation Method 1
The apparatus provides for application of forces to the dosage form and preferably variation of the frequency, duration and amount of force or compression that is applied to the dosage form
Data Source
AI summary
An apparatus and method are provided for analyzing the release of active agent(s) from pharmaceutical and pharmaceutical-like products. The apparatus and method provide for more accurate simulation of the conditions in the GI tract including forces that are applied to the dosage form.