Urethral Contraceptive Device with Inflatable Seals

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing male contraceptives do not effectively provide a reliable and comfortable method for preventing semen release during sexual intercourse.

Innovation Solution

A contraceptive device for a penis featuring an elongate body with a closed end, an inflation end, and deformable walls that form seals with the penis when deformed, utilizing air pressure to secure the device within the urethra.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing male contraceptives are used, then contraception function is provided, but reliability and comfort are insufficient

Engineering Contradiction:
Improvereliability of semen preventionVSAvoidcomfort during use
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The contraceptive device utilizes a flexible elongate body made of deformable material that can be inserted in a compressed state and then expanded within the urethra to form effective seals, combining ease of insertion with reliable contraception

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The device employs an inflatable structure where air or fluid is pumped through an air valve into the elongate body to expand deformable walls and form seals against the urethra, ensuring reliable semen containment while maintaining comfort

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Reliability

If the elongate body is inflated to form seals, then semen prevention reliability is improved, but device complexity increases

Engineering Contradiction:
Improveseal formation effectivenessVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The device is divided into functional segments including the elongate body, air valve, deformable walls, and inflation chamber, allowing each component to perform its specific function while maintaining overall system reliability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The device transitions from a deflated compact state for insertion to an inflated expanded state for sealing, with deformable walls that dynamically adapt to the urethra's shape and size to ensure effective semen containment

Inventive Principle:
Principle #15Dynamics

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 device effectively prevents semen release by forming multiple seals within the urethra, providing a reliable and comfortable method for contraception.

Implementation Method 1

An interior within the elongate body may be configured to hold an air pressure... The deformable wall(s) form one or more seals with the penis when deformed

Methodology Applied
Scientific EffectPressure differential: Pressure Gradient

Implementation Method 2

The elongate body may be made of at least one of: a rubber, a latex, and a flexible plastic... The deformable wall(s) form one or more seals with the penis when deformed

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS20250161102A1Contraceptive device and method
Publication Date: 2025.05.22 FOX AARON L J
  • US20250161102A1 patent drawing
  • US20250161102A1 patent drawing
  • US20250161102A1 patent drawing

AI summary

A contraceptive device for a penis having an elongate body with a closed end, an inflation end, and at least one deformable wall therebetween. An interior within the elongate body is configured to hold an air pressure. An air valve extends from an exterior of the elongate body to the interior. The use of the contraceptive device comprises: inserting the elongate body into a urethra of the penis by the closed end; inserting a nozzle of a pump into the air valve; pumping air through the air valve thereby increasing the air pressure within the interior of the elongate body thereby deforming the deformable walls and forming one or more seals; and removing the nozzle from the air valve thereby sealing the interior of the elongate body.