Pessary Protuberance Anchor for Withdrawal Member

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Solution Overview

Problem

Current pessary devices for female urinary incontinence lack an effective and easy-to-use mechanism for secure attachment and removal of withdrawal members, which complicates their use and comfort during insertion and withdrawal.

Innovation Solution

The pessary device incorporates one or more protuberances within a hollow region to anchor a withdrawal member, allowing for secure attachment and ease of removal, with the protuberances being either integral or non-integral to the inner wall and capable of interlocking to form an enclosed space for the withdrawal member.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a withdrawal member is attached to the pessary device to ease removal, then ease of removal is improved, but the attachment mechanism increases device complexity

Engineering Contradiction:
Improveease of removalVSAvoidattachment mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The pessary device is divided into distinct functional components: the main body and the withdrawal member. The withdrawal member is a separate element that can be attached to or removed from the pessary body, allowing independent optimization of each component's function while simplifying the overall attachment mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The withdrawal member is designed to be received within a cavity or recess of the pessary device body. This nested configuration allows the withdrawal member to be securely positioned while maintaining a compact overall structure and simplifying the attachment interface.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If the withdrawal member is securely attached to the pessary device, then reliability of attachment is improved, but ease of removal deteriorates

Engineering Contradiction:
Improveattachment securityVSAvoidease of removal
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The attachment mechanism is designed with dynamic characteristics that allow it to provide strong holding force during normal use (reliability) while enabling easy release when needed (ease of removal). The withdrawal member can be readily extracted by applying simple pulling force, indicating a dynamic attachment that adapts between secure holding and easy release states.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

An intermediate structure or interface is provided between the withdrawal member and the pessary body that facilitates both secure attachment and easy removal. This intermediate mechanism acts as a mediator that allows the two seemingly contradictory requirements to coexist.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If the pessary device is made compact for comfort, then ease of operation is improved, but resistance to force deteriorates

Engineering Contradiction:
Improvecomfort during useVSAvoidresistance to force
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The pessary device utilizes flexible material construction that allows the device to maintain a compact size for comfort while deriving strength from the flexibility and elasticity of the material. The flexible nature allows the device to deform and return to shape, providing resistance to force without requiring a large rigid structure.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The pessary device is constructed from composite materials that combine properties of different materials to achieve both compactness and strength. The material composition provides sufficient mechanical strength to resist forces while maintaining a compact form factor for comfort during use.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentEP2906156B1Pessary device
Publication Date: 2020.02.26 PROCTER & GAMBLE CO
  • EP2906156B1 patent drawingFigure 1A~1B
  • EP2906156B1 patent drawingFigure 2
  • EP2906156B1 patent drawingFigure 3~4

AI summary

A pessary device having a top, a base, a length, a longitudinal axis, and a hollow interior. The pessary device has a hollow interior containing a protuberance.