Tamarind Polysaccharide Gel for Cervical Ectropion Treatment

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Solution Overview

Problem

Current treatments for cervical ectropion in post-menopausal women, such as re-epithelializing preparations and diathermocoagulation, often fail to provide long-lasting relief and are associated with side effects or relapses, necessitating an effective alternative.

Innovation Solution

A vaginal gel containing a water-ethanol extract of tamarind seeds with high molecular weight polysaccharides, combined with additional soothing and anti-inflammatory ingredients, is administered intravaginally to promote epithelial replacement and reduce ectropion symptoms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If re-epithelializing preparations are used to treat cervical ectropion, then epithelial replacement is promoted, but treatment success rate is modest and relapses occur

Engineering Contradiction:
Improvetreatment effectivenessVSAvoidduration of relief
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent changes the chemical composition parameters by using tamarind seed polysaccharides with specific molecular weight (>100,000) and concentration (0.5-5%), processed at controlled temperature (20°C) to achieve optimal colloidal properties. This parameter optimization resolves the contradiction by creating a formulation that maintains treatment effectiveness while extending duration of action through improved mucoadhesion and sustained release.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite gel formulation combining tamarind seed polysaccharides with mucoadhesive agents (cellulose derivatives, chitosan, carbacol). This composite approach enhances both the reliability of epithelial replacement and extends duration of action through synergistic mucoadhesion and controlled release properties.

Inventive Principle:
Principle #40Composite materials

2Reliability

If diathermocoagulation is used to treat cervical ectropion, then tissue replacement occurs, but side effects and relapses are common

Engineering Contradiction:
Improvetreatment effectivenessVSAvoidside effects
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical/thermal diathermocoagulation system with a chemical/biological gel formulation containing tamarind seed polysaccharides. This substitution eliminates harmful thermal effects and side effects while maintaining treatment effectiveness through bioactive polysaccharide action on ectropion tissue.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent uses a topical gel formulation that can be applied repeatedly without permanent tissue alteration, replacing the irreversible diathermocoagulation procedure. This approach eliminates side effects associated with thermal damage while providing effective treatment through sustained polysaccharide action.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Productivity

If conventional gel processing temperatures (30-40°C) are used, then gel preparation is efficient, but tamarind polysaccharides are not sufficiently colloidal and treatment is ineffective

Engineering Contradiction:
Improvegel preparation efficiencyVSAvoidclinical effectiveness
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent identifies and applies the critical parameter of processing temperature, setting it at 20°C rather than conventional 30-40°C. This parameter change enables proper colloidal formation of tamarind polysaccharides, resolving the contradiction by achieving both adequate preparation efficiency and clinical effectiveness through optimized temperature control.

Inventive Principle:
Principle #35Parameter changes

4Reliability

If tamarind polysaccharide gel is processed at low temperatures, then colloidal formation occurs, but polymerization may form macro-aggregates

Engineering Contradiction:
Improvecolloidal effectivenessVSAvoidcomposition homogeneity
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent optimizes the temperature parameter to 20°C, which is low enough to promote proper colloidal formation but not so low as to cause excessive polymerization and macro-aggregate formation. This precise parameter control resolves the contradiction by achieving stable, homogeneous colloidal suspension with optimal therapeutic properties.

Inventive Principle:
Principle #35Parameter changes

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 gel effectively reduces cervical ectropion diagnosis by 75% in treated women, with a low relapse rate of 5% after 120 days, compared to hyaluronate-based gels which show a 25% relapse rate, offering a durable and side-effect-free treatment option.

Implementation Method 1

The extract obtained from a water:ethanol mixture in the ratio of 20:70, characterised by a high presence of polysaccharides (assay > 50%) with a high molecular weight (> 100,000), is preferred.

Methodology Applied
Scientific EffectColloid formation: Colloid

Implementation Method 2

The gel can be prepared with conventional techniques and excipients, in particular using mucoadhesive agents such as cellulose derivatives (hydroxyethylcellulose and hydroxypropyl methylcellulose), polymers such as carbacol, colloids based on chitosan

Methodology Applied
Scientific EffectMucoadhesion: Adhesive

Implementation Method 3

The extract obtained from a water:ethanol mixture in the ratio of 20:70

Methodology Applied
Scientific EffectLiquid-liquid extraction: Liquid-Liquid Extraction

Data Source

PatentEP2916849B1Compositions for vaginal use containing tamarind polysaccharides
Publication Date: 2017.01.18 VELLEJA RES
  • EP2916849B1 patent drawing
  • EP2916849B1 patent drawing
  • EP2916849B1 patent drawing

AI summary

Disclosed are vaginal compositions containing a tamarind seed extract for use in the treatment of atrophic vaginitis in post-menopausal women.