Variable Pressure Chamber Drive for Low-Vibration Intimate Stimulation

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Solution Overview

Problem

Existing stimulation devices for human erogenous zones lack the ability to provide a variable pressure field with improved operating characteristics, such as efficient energy use and reduced disruptive vibrations.

Innovation Solution

A device utilizing a linear drive mechanism with a movable chamber wall portion and a stationary magnetic field to generate a variable pressure field, sealed from the ambient environment, using a coil device within the magnetic field to move the chamber wall, allowing for efficient generation of positive and negative pressures without significant structural vibrations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a rotating electric motor with eccentric shaft and piston is used, then the device can generate vibrations, but the structure becomes complex and the stroke is fixed and not modifiable

Engineering Contradiction:

Improvemodifiability of strokeVSAvoidcomplexity of drivetrain structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces the rotating electric motor with electromagnetic actuators (voice coil actuators or linear piezoelectric actuators) that directly generate linear motion. This substitution eliminates the need for eccentric shafts, connection rods, and pistons, thereby simplifying the drivetrain structure while enabling modifiable stroke through electrical control of the actuators.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If an electric linear motor with multiple coils is used, then higher diversity of vibrations is achieved, but the structure remains complex with multiple coil elements

Engineering Contradiction:

Improvediversity of vibrationsVSAvoidcomplexity of coil structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent extracts the vibration generation function from a complex multi-coil linear motor system and implements it using simpler electromagnetic actuators. The voice coil actuator or linear piezoelectric actuator achieves vibration diversity through electrical control parameters (frequency, amplitude, waveform) rather than requiring multiple physical coil elements, thereby reducing structural complexity.

Inventive Principle:

Principle #2Taking out (Extraction)

3Use of energy by moving object

If a sealed pressure chamber is used, then efficient energy use is achieved, but the device may generate disruptive vibrations and sound emissions

Engineering Contradiction:

Improveenergy efficiencyVSAvoiddisruptive vibrations and sound

Core Design Contradiction:

Use of energy by moving objectVSObject-generated harmful factors

Solution Approach 1:

The patent employs a flexible membrane as the movable chamber wall portion instead of rigid mechanical components. This flexible membrane, when actuated by electromagnetic actuators, generates pressure variations with minimal mechanical vibration and sound emission, as the membrane's compliance absorbs mechanical shocks and reduces noise transmission while maintaining energy efficiency in the sealed pressure chamber.

Inventive Principle:

Principle #30Flexible shells and thin films

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 achieves efficient energy use and reduced vibrations, enabling a variable pressure field for effective stimulation with minimal disruptive sound emissions, suitable for contactless application on erogenous zones like the clitoris.

Implementation Method 1

a coil device, through which an electric current flows during operation, is movably arranged in an assigned stationary permanent magnetic field and is coupled to the movable chamber wall portion in order to transmit the drive movement

Methodology Applied

Scientific EffectLorentz force: Lorentz Force

Implementation Method 2

the movable chamber wall portion can repeatedly move between different wall positions in response to the drive movement coupled thereto, as a result of which a chamber volume of the pressure chamber is repeatedly increased and decreased in order to generate the variable pressure field

Methodology Applied

Scientific EffectPressure field variation: Pressure Gradient

Data Source

PatentUS12576003B2Device for stimulating a human erogenous zone using a variable pressure field

Publication Date: 2026.03.17 NOVOLUTO GMBH

AI summary

A device for stimulating a human erogenous zone includes a housing; a drive device; a pressure chamber at least partially surrounded by a chamber wall; a chamber wall portion, the drive device to cause the chamber wall portion to repeatedly move between different wall positions to cause a volume of the pressure chamber to vary to cause pressure in the pressure chamber to modulate between positive pressures and negative pressures relative to an ambient pressure; a housing opening, the positive pressures and the negative pressures to be output via the housing opening; and a seal to seal the pressure chamber with respect to an ambient environment, the drive device including a coil through which an electrical current is to flow, the drive device disposed in a magnetic field and coupled to the chamber wall portion to transmit the drive movement to cause the chamber wall portion to move.