A New Paradigm of fluid dynamics for an Innovative Bidet that gives intimate hygiene and comfort in 60” sec., but also MEMS Spectrometry for Analysis

Following years of rigorous in-vivo testing, Verxalus presents a system that definitively redefines the bidet seat industry. 
The technological core of our project lies in overcoming the severe hygiene criticalities that plague current state-of-the-art devices. 
Existing products rely on an orthogonal (bottom-up) water micro-jet, an architecture intrinsically prone to bacterial splash-back and nozzle contamination.
Verxalus neutralizes this risk at the root by introducing a horizontal, tangential washing architecture. 
This unprecedented method is based on the biomechanics of the perineal region: the calibrated water pressure generates a temporary, elastic micro-deformation of the skin that acts as a natural deflector. 
Following the cleaning impact, the flow exhausts its horizontal kinetic energy and is diverted vertically by gravity. 
Fluids and bio-waste drop safely and directly into the toilet bowl, ensuring an absolute absence of contaminating backflow. 
Verxalus is not just an innovative device; it is a highly scalable, patented platform designed to transform the toilet from a basic sanitary fixture into a proactive health and wellness hub.

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Advanced Female Care & Modular Scalability

B2B Licensing & Joint Development

A major limitation of conventional bidet seats is their rigid design, which fails to fully address female intimate hygiene and specific medical treatments. 
Verxalus introduces a revolutionary ergonomic advantage: our patented mechanism is highly effective whether the user adopts a standard seating position or a reversed (front-facing) seating position on the toilet.
This dual-position capability, entirely absent in competitors' models, allows for unparalleled precision in both posterior and targeted anterior cleaning. 
Furthermore, the Verxalus platform offers an exclusive fluid-mixing option. 
This allows the direct infusion of specific intimate detergents, soothing agents, or liquid medical treatments into the water stream.
From a manufacturing perspective, our single-axis kinematics enables a radically simplified, electronics-free baseline model. 
This manual version offers intuitive, showerhead-like control, drastically reducing production costs (CAPEX) and eliminating post-sales maintenance. 
It represents the perfect, highly accessible solution for massive emerging markets, while serving as the robust mechanical foundation for our premium, heated, and automated models.

The strengths of OUR system VERSUS the weaknesses of OTHERS

This is the trajectory of our micro-water jet, which removes fecal matter and flows into water in the toilet bowl. This system prevents the formation of micro-droplets produced by current bidets with a perpendicular jet, which allow fecal bacteria to infiltrate the nozzles

A fully mechanical, centralized core managing a dual degree of freedom (lateral oscillation and vertical translation). Highly reliable and immune to the humid, hostile environment of the toilet bowl, ensuring zero Total Cost of Ownership (TCO) and absolute durability.

In natural WHITE, with a raised seat section to define the user's position and allow micro jets to pass underneath

Instantaneous micro-heater, which is activated simply by the flow of water, capable of reaching a temperature of 30 °C, equipped with a PTC/NTC thermistor and a bimetallic safety sensor

Prototype showing the internal mechanism of the container and the slot beneath the raised seat (cutaway view)

The interior of the nozzles in electronic bidets currently on the market retains water, preventing it from draining away, where colonies of coliform bacteria, including Escherichia coli, develop

Bacterial contamination is more severe in the female nozzle, but in a multi-user device, contamination is widespread. Research by Japanese doctors, as reported on this website, shows that bacteria multiply in the water trapped inside the nozzles tube, yet the advertising does not inform users of the risks they face

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The following report details a study conducted at a Japanese University Hospital to test for the presence of fecal bacteria in the nozzles of all 292 electronic bidets located within that facility.

Conclusion: Warm-water nozzles of bidet toilets are contaminated with a wide range of bacteria, making them a potential vehicle for cross-infection. In the hospital setting, shared use of bidet toilets must consider the clinical background of patients. Based on these findings, these devices must be part of the risk management programme, and steps should be included for monitoring and disinfection.

Public health and healthcare-associated risk of electric, warm-water bidet toilets
A Kanayama Katsuse 1, H Takahashi 1, S Yoshizawa 2, Kazuhiro Tateda 3, Y Nakanishi 4, A Kaneko 4, I Kobayashi 5
Affiliations Collapse
Affiliations
1Department of Infection Control and Prevention, Toho University Faculty of Nursing, Tokyo, Japan.
2Clinical Research Centre, Toho University School of Medicine, Tokyo, Japan; Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan.
3Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan.
4Department of Oral and Maxillofacial Surgery, Tokai University School of Medicine, Kanagawa, Japan.
5Department of Infection Control and Prevention, Toho University Faculty of Nursing, Tokyo, Japan. Electronic address: kobatora@med.toho-u.ac.jp.
PMID: 28756169
DOI: 10.1016/j.jhin.2017.07.021
Abstract
Background: In recent years, installation of bidet toilets within hospitals in Japan has raised concerns regarding potential for cross-contamination by antimicrobial-resistant bacteria from patients who are hospitalized over an extended period.
Aim: To investigate the distribution of antimicrobial-resistant bacteria recovered from bidet toilets at a university-affiliated hospital in Japan.
Methods: All 292 electric bidet toilets at a university hospital were sampled for contamination. Swabs for culture were used to sample water-jet nozzles and toilet seats.
Findings: Of the 292 toilet seats sampled, warm-water nozzles of 254 (86.9%) were found to be contaminated by one or more of the following organisms: Staphylococcus aureus, Streptococcus spp., Enterococcus spp., Enterobacteriaceae and non-Enterobacteriaceae Gram-negative bacteria. S. aureus was recovered from one water-jet nozzle and nine toilet seats; of these, meticillin-resistant S. aureus was recovered from the water-jet nozzle and from one toilet seat. Both the water-jet nozzle and seat of the same toilet were contaminated with a CTX-M-9 group extended-spectrum β-lactamase-producing Escherichia coli. Of the Gram-negative isolates recovered from samples, the organism with the highest frequency of isolation was Stenotrophomonas maltophilia, which was recovered from 39 bidet toilets.
Conclusion: Warm-water nozzles of bidet toilets are contaminated with a wide range of bacteria, making them a potential vehicle for cross-infection. In the hospital setting, shared use of bidet toilets must consider the clinical background of patients. Based on these findings, these devices must be part of the risk management programme, and steps should be included for monitoring and disinfection.

The Future of Preventative Health: Integrating AI and MEMS Spectrometry Safely

As the market shifts towards proactive Digital Health, the toilet is becoming the ultimate non-invasive diagnostic tool. Verxalus is engineered to house advanced MEMS (Micro-Electromechanical Systems) spectrometry sensors for real-time analysis of bio-waste (urine and stool) to monitor hydration, gut health, and early disease markers. However, integrating delicate optical and electronic sensors into sanitaryware presents severe environmental challenges. Current industry proposals—such as placing third-party sensors (like the Throne Science camera) directly on the toilet bowl rim—are fundamentally flawed. The bowl rim is highly exposed to aggressive chemical cleaners, acidic environments, and direct splash-back, guaranteeing rapid sensor degradation and compromised clinical data. The Verxalus architecture solves this critical engineering hurdle. Our proprietary design allows for a shielded, integrated housing for high-tech third-party sensors and cameras, completely isolating them from the hostile environment of the bowl while maintaining a perfect optical vantage point. This structural superiority makes Verxalus the ideal, secure hardware platform for tech companies looking to deploy clinical-grade spectrometry and biometric analysis in the smart-home and healthcare sectors.

Empirical Validation: From Robotic Targeting to Analog Simplicity

The engineering maturity of Verxalus is the result of a rigorous development process. As demonstrated in the accompanying video of our early working prototype, the project initially envisioned a high-end, robotic targeting system. This version integrated micro-cameras, LED lighting, and AI-driven computer vision to identify fecal matter and automatically pilot the micro-actuators, directing the tangential jet with surgical precision.
While this phase successfully validated the technical feasibility of our two-axis kinematics, it also prompted a strategic pivot based on global market demands. We realized that the true disruptive value of our innovation lies in the intrinsic cleanliness of the horizontal jet. By stripping away the complex software loops and motorized nozzles required by competitors, we adapted our robust mechanism to a manual, analog control system.
This versatility is our greatest commercial asset. It allows us to approach the mass-market B2C sector with ultra-reliable, mechanical versions, while simultaneously offering high-budget B2B healthcare markets the automated, sensor-rich diagnostic hubs.
We are offering a protected, multi-tiered technological ecosystem. We welcome inquiries from industrial partners, investors, and digital health pioneers interested in licensing or joint development opportunities to scale a product that disrupts both traditional sanitaryware and preventative healthcare.

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