Dual-Chamber Pressure Stimulation for Hygienic Pulsed Clitoral Massage

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Solution Overview

Problem

Existing erogenous zone stimulation devices, particularly for the clitoris, suffer from complexity, hygiene issues, habituation effects, and potential skin drying due to continuous pressure application, with direct contact methods being sensitive to user preferences and indirect methods like vacuum pumps causing contamination and discomfort.

Innovation Solution

A stimulation device with a first and second chamber connected by a connecting element generates a time-varying pressure field using a drive unit, creating alternating overpressures and underpressures to mimic natural stimulation without direct contact, using a closed system to prevent contamination and simplify cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If vacuum pumps are used for indirect stimulation, then direct contact is avoided and hygiene is improved, but the device complexity increases and contamination of vacuum components occurs

Engineering Contradiction:
ImprovehygieneVSAvoiddevice complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The device is divided into a stimulation chamber that contacts the body and a pump chamber that remains separate. The stimulation chamber can be detached and removed for cleaning, while the pump chamber remains stationary. This segmentation allows the vacuum pump to maintain hygiene by preventing contamination of internal components while keeping the device relatively simple in overall structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The vacuum pump is extracted from direct contact with the stimulation area. Only the necessary minimal components (chamber and connecting elements) are positioned near the body, while the main pump mechanism remains separate. This extraction reduces the risk of contamination to essential components while maintaining the vacuum function.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If continuous negative pressure is applied, then stimulation effectiveness is maintained, but habituation effects occur that limit device effectiveness

Engineering Contradiction:
Improvestimulation effectivenessVSAvoidduration of action
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The device applies periodic pressure variations instead of continuous negative pressure. The pump cycles between creating negative pressure and releasing it, generating pulsating stimulation patterns. This periodic action prevents habituation by varying the stimulus over time while maintaining overall stimulation effectiveness through repeated cycles.

Inventive Principle:
Principle #19Periodic action

3Ease of operation

If vacuum pumps with airflow openings are used, then continuous airflow is created for stimulation, but vaginal lubrication is drawn out causing drying effect

Engineering Contradiction:
Improvecontinuous airflow stimulationVSAvoiddrying effect
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

Instead of continuous airflow, the device creates periodic pressure pulses that alternate between negative and positive pressure. This causes rhythmic expansion and contraction of the chamber, generating stimulation through pressure changes rather than continuous air flow. The periodic action eliminates the drying effect while maintaining ease of operation through automated pulsating patterns.

Inventive Principle:
Principle #19Periodic action

4Adaptability or versatility

If multiple valves and vacuum pump components are included, then vacuum level regulation is achieved, but hygiene problems increase due to difficult-to-clean components

Engineering Contradiction:
Improvevacuum level regulationVSAvoidcleanability
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The device separates cleanable components (stimulation chamber) from non-cleanable components (pump, valves). The stimulation chamber is designed as a detachable, simple geometry component that can be easily cleaned or replaced. The pump and valve mechanisms remain in a separate chamber that does not require user cleaning, thus maintaining vacuum regulation functionality while improving overall cleanability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The stimulation chamber is designed as a disposable or easily replaceable component. Instead of making the entire device cleanable, the part that contacts the body is made inexpensive and replaceable, eliminating hygiene concerns while maintaining sophisticated vacuum control in the permanent pump unit.

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

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 provides effective, hygienic, and non-habituating stimulation by mimicking natural sexual movements, enhancing sensitivity and blood flow while avoiding skin drying and complex mechanisms, with user-friendly operation and customizable patterns.

Implementation Method 1

A stimulation device with a first and second chamber connected by a connecting element generates a time-varying pressure field using a drive unit, creating alternating overpressures and underpressures

Methodology Applied
Scientific EffectPressure field generation through volume change: Pressure Gradient

Implementation Method 2

The negative pressure exerted on the clitoris with this type of device creates a negative pressure within the clitoris itself, which is usually lower than systolic blood pressure. This pressure difference leads to dilation of the clitoris and/or stimulates blood flow in the affected area.

Methodology Applied
Scientific EffectBlood flow stimulation through negative pressure: Pressure Gradient

Data Source

PatentEP3461468B1Stimulation device
Publication Date: 2026.03.04 NOVOLUTO GMBH
  • EP3461468B1 patent drawingFigure 1
  • EP3461468B1 patent drawingFigure 2
  • EP3461468B1 patent drawingFigure 3

AI summary

The invention relates to a stimulation device (1) for erogenous zones, in particular for the clitoris (12), which comprises at least a pressure field generation device (2) with at least a first chamber (3) and at least a second chamber (4) with at least one opening (42) for placement on a body part (11) and at least one connecting element (5) which connects the first chamber (3) to the second chamber (4) and with a drive unit (6) which changes the volume of the first chamber (3) in such a way that a pressure field is generated in the second chamber (4) via the connecting element (5) which serves for stimulation; and a control device (7) which controls the drive unit (6).