Iontophoretic Transdermal Patch for Iron Delivery
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Solution Overview
Problem
Current methods for treating iron deficiency, such as oral iron supplements and intravenous injections, are associated with significant side effects, poor absorption, and convenience issues, particularly in patients with inflammatory conditions or increased iron demands.
Innovation Solution
A transdermal patch for the delivery of a therapeutically effective amount of iron, utilizing ferrous salts and potentially combined with vitamin supplements or erythropoietin, via iontophoretic delivery, which bypasses gastrointestinal absorption issues and provides sustained iron levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If oral iron supplements are administered, then iron can be delivered to patients, but gastrointestinal side effects occur and absorption is poor
Solution Approach 1:
The patent uses the skin as an intermediary route for iron delivery, bypassing the gastrointestinal tract. The transdermal patch delivers iron through the skin's stratum corneum layer directly into the bloodstream, avoiding contact with gastrointestinal tissues that cause side effects and absorption problems.
Solution Approach 2:
The patent segments the iron delivery system into multiple components: a reservoir containing iron salts, a rate-controlling membrane that regulates iron release, and an adhesive layer for skin attachment. This segmentation allows controlled, sustained delivery of iron through the skin without gastrointestinal interference.
2Quantity of substance
If intravenous iron injections are administered, then iron delivery is effective, but pain and risk of blood-borne diseases occur
Solution Approach 1:
The skin acts as an intermediary delivery route between oral and intravenous administration. The transdermal patch provides effective iron delivery similar to intravenous injection but through a non-invasive route, eliminating injection pain and infection risk while maintaining therapeutic effectiveness.
3Object-affected harmful factors
If oral iron is taken with food to reduce side effects, then gastrointestinal comfort improves, but iron absorption decreases by approximately 50%
Solution Approach 1:
The skin serves as an alternative intermediary route that is not affected by food intake. Unlike oral administration where food interacts with iron in the gastrointestinal tract, transdermal delivery bypasses this interaction entirely, allowing iron absorption to proceed at full efficiency regardless of dietary intake.
4Quantity of substance
If iron dextran is administered intravenously, then iron deficiency is corrected, but allergic reactions and fatalities occur in 10-15% of patients
Solution Approach 1:
The transdermal patch uses the skin as a safer intermediary delivery system compared to intravenous iron dextran. By delivering iron through the skin rather than directly into the bloodstream via injection, the system maintains therapeutic effectiveness while dramatically reducing the risk of severe allergic reactions and fatalities.
Solution Approach 2:
The patent segments iron delivery into controlled, sustained release through the rate-controlling membrane, avoiding the rapid bolus injection that causes severe allergic reactions. This gradual transdermal delivery allows the body to accommodate iron intake safely over time.
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 transdermal patch offers a more convenient and effective method for iron supplementation, reducing side effects and improving absorption, particularly in patients with poor gastrointestinal iron absorption, and can be tailored for various iron deficiency conditions.
Implementation Method 1
the patch is configured for transdermal iontophoretic delivery of the composition
Data Source
AI summary
Embodiments of the invention provide patches for the transdermal delivery of iron-containing compositions to an individual suffering from an iron deficiency. Many embodiments provide an iontophoretic patch for the transdermal delivery of a therapeutically effective amount of iron. The patch comprises an electrode and a reservoir containing a composition comprising ionic iron for the delivery of the therapeutically effective amount of iron. Various embodiments provide methods of using embodiments of the iontophoretic patch for delivering a therapeutically effective amount of iron to an individual suffering from one more forms of iron deficiency including iron deficiency anemia. Such methods can be used for treating and/or preventing the iron deficiency. The amount of delivered iron can be adjusted depending upon various treatment parameters such as patient weight and type and amount of iron deficiency.