Oral Paste Carrier for Canker Sore Treatment
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Solution Overview
Problem
Current canker sore treatments either lack an anti-inflammatory component or are ineffective in maintaining a local anesthetic presence, leading to prolonged healing times and discomfort due to quick dissipation in a saliva-rich environment.
Innovation Solution
A topical composition combining 10-30% benzocaine as an anesthetic with 0.5-2% hydrocortisone, carried by a paste formulation including sodium carboxymethylcellulose, gelatin, citrus, pectin, petrolatum, and titanium dioxide, which resists washing away and provides sustained delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a gel-based carrier is used to deliver anesthetic and anti-inflammatory substances, then the composition can be applied topically to the canker sore, but the carrier quickly dries up and washes away with saliva, reducing treatment effectiveness
Solution Approach 1:
The patent changes the physical state of the carrier from gel to paste, and adjusts the concentration of hydrophilic and lipophilic components to create a balanced formulation that resists both drying and washing away. The paste form maintains moisture while the specific composition ratio (40-60% hydrophilic, 40-60% lipophilic) provides stability in the saliva environment.
Solution Approach 2:
The patent uses a composite carrier system combining multiple ingredients with different properties: hydrophilic agents (sodium carboxymethylcellulose, gelatin, pectin) for water retention, lipophilic agents (petrolatum, titanium dioxide) for water resistance, and adhesive agents (vanillin) for bonding to the sore. This composite approach creates a carrier that simultaneously resists drying, washing away, and detachment.
2Object-affected harmful factors
If only anesthetic substances are used to treat canker sores, then pain is relieved, but inflammation is not addressed, prolonging healing time
Solution Approach 1:
The patent combines two previously separate treatment approaches (anesthetic-only and anti-inflammatory-only) into a single dual-action composition. The formulation includes both benzocaine (anesthetic) and hydrocortisone (anti-inflammatory) in specific concentrations (10-30% and 0.5-2% respectively), allowing simultaneous pain relief and inflammation reduction to accelerate healing.
Solution Approach 2:
The patent creates a multi-functional treatment composition that performs multiple functions: analgesic (benzocaine), anti-inflammatory (hydrocortisone), and carrier/stabilizer (paste formulation with hydrophilic and lipophilic agents). This universal composition addresses both pain and inflammation while maintaining stability in the oral environment.
3Object-affected harmful factors
If only anti-inflammatory substances are used to treat canker sores, then inflammation is reduced, but application is painful and effects are delayed without local anesthetic
Solution Approach 1:
The patent combines anti-inflammatory hydrocortisone (0.5-2%) with local anesthetic benzocaine (10-30%) in a single formulation. This allows the composition to reduce inflammation while simultaneously numbing the area to eliminate application pain, making the treatment both effective and comfortable.
Solution Approach 2:
The anesthetic component acts preliminarily by numbing the canker sore area before the anti-inflammatory component takes effect. This preliminary analgesic action makes the application of the anti-inflammatory substance painless and allows the inflammation-reducing effects to develop without patient discomfort.
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 composition significantly reduces pain and inflammation, shrinking lesions by half within 24 hours and shortening healing duration to 7-14 days, while maintaining adhesive properties to withstand saliva, allowing for effective treatment without frequent reapplication.
Implementation Method 1
a paste carrier to carry and apply the anesthetic substance and the anti-inflammatory substance directly to a canker sore
Implementation Method 2
In order to resist quick drying and/or washing away from the canker sore site, the paste carrier may include sodium carboxymethylcellulose, gelatin, citrus, pectin, petrolatum, and titanium dioxide
Data Source
AI summary
A composition, and method for using the same, for treating a canker sore includes 10-30% of an ester local anesthetic, 0.5-2% of a corticosteroid, and a carrier for the ester local anesthetic and the corticosteroid. The carrier is formulated as a paste so as to be applied topically to the canker sore to deliver the ester local anesthetic and the corticosteroid simultaneously to the canker sore.