Dual-Release Capsule Band Structure for Timed Ingredient Separation

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Solution Overview

Problem

Conventional two-piece capsules are limited to single mixture delivery, require incompatible ingredients to be mixed separately, and lack control over release timing, making them inefficient for dual release of different active ingredients.

Innovation Solution

A dual release dosage form capsule with two capsule members sealed by a band containing apertures, allowing differential release of fill materials through exposure to digestive fluids, and a manufacturing process using capsule forming devices to assemble and seal the capsule.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional two-piece capsules are used, then the capsule structure is simple and easy to manufacture, but the capsule can only deliver a single mixture and cannot accommodate incompatible ingredients

Engineering Contradiction:

Improveability to deliver multiple incompatible ingredientsVSAvoidcapsule structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The capsule is divided into two separate capsule members (first and second capsule members) that are coupled together by a band. Each capsule member can contain different fill materials, allowing incompatible ingredients to be delivered separately while maintaining a relatively simple overall structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

One capsule member is positioned inside the other capsule member, with both members coupled by an external band. This nested arrangement allows multiple fill materials to be contained within a single dosage form while keeping the external profile compact and manageable.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Duration of action of moving object

If conventional capsules release all contents at once, then the manufacturing process is simple, but there is no control over release timing

Engineering Contradiction:

Improverelease timing controlVSAvoidcapsule structure complexity

Core Design Contradiction:

Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The capsule contents are segmented into two separate capsule members, each capable of independent release. This allows one fill material to be released immediately while the other is delayed, providing temporal control over drug delivery without complex mechanisms.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The band coupling the capsule members is designed to dissolve or break away at a predetermined time after ingestion, allowing the second capsule member to be released from containment and dissolve subsequently. This preliminary design of the band's dissolution characteristics provides automatic timing control.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If capsule members are tightly fitted to prevent leakage, then the seal is secure, but the assembly and filling processes become difficult

Engineering Contradiction:

Improvesealing effectivenessVSAvoidassembly and filling ease

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The sealing function is segmented between the capsule members themselves and the external band. The band provides the primary sealing and coupling force, allowing the capsule members to be assembled and filled more easily without requiring extremely tight fits between components.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The band acts as an intermediary element that couples the two capsule members together and provides the sealing function. This mediator allows the capsule members to be joined reliably while maintaining ease of assembly, as the band can be applied externally to seal the contents.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

Enables timed or simultaneous release of different fill materials, allowing for extended pain management and increased shelf life by maintaining incompatible ingredients separate until release.

Implementation Method 1

The band includes one or more apertures therethrough radially oriented relative to a longitudinal axis of the capsule, thereby placing the internal chamber in fluid communication with the environment outside the capsule

Methodology Applied

Scientific EffectFluid penetration through apertures: Permeation

Data Source

PatentUS12564557B2Dual release dosage form capsule and methods, devices and systems for making same

Publication Date: 2026.03.03 GEL CAP TECHNOLOGIES LLC

AI summary

Capsule forming machines that form a dual dosage capsule have superimposed upper and lower plates that are each rotatable about an axis of rotation. Each of the upper and lower plates define a plurality of voids for receiving a shell body or a capsule member of a capsule that are positioned to define a plurality of stations. A first distribution device is operatively positioned at one of the plurality of stations of each of the upper and lower plates and an actuator is operatively connected to either of the upper or lower plates. The actuator moves the upper plate or the lower plate relative to the other plate and/or pivots the upper plate or the lower plate relative to the other plate transverse to the rotational axis to move a capsule assembly station thereof toward to the other plate and then away from the other plate at predetermined times.