Perineal Spray Attachment With Integrated Nozzle and Venturi Control

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Solution Overview

Problem

Conventional bidet attachments for conventional toilets are often awkward to use, particularly for individuals who need to control the nozzle with their non-dominant hand, and lack a simple method to integrate cleansing or topical agents into the liquid flow.

Innovation Solution

A perineal cleansing attachment with a nozzle mounted on a curved conduit that can be pivoted using a fluid flow control valve handle, which also functions as a handle for moving the nozzle, and incorporates a venturi injector to entrain cleansing agents into the liquid stream without requiring complex valves or pumps, allowing for easy mounting on either side of the toilet seat.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a separate handle for moving the nozzle and a separate valve for controlling fluid flow are used, then the functions are clearly separated, but the device complexity increases and ease of operation decreases

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent combines the nozzle positioning handle and the fluid flow control valve into a single integrated control mechanism. The user operates one handle to simultaneously control both the position of the nozzle and the flow of fluid, eliminating the need for separate controls and simplifying the user interface.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single control handle serves multiple functions: it positions the nozzle and controls fluid flow. This multi-functional design reduces the number of components the user must interact with, improving ease of operation without significantly increasing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If the bidet attachment is mounted to one side of the toilet seat, then the structure is simplified, but adaptability decreases for left-handed or right-handed users

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent employs an asymmetric mounting design where the attachment can be installed on either the left or right side of the toilet seat according to user preference. This asymmetric flexibility allows left-handed and right-handed users to configure the device for their dominant hand, enhancing adaptability without requiring completely different device designs.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The attachment incorporates a flexible or adjustable mounting mechanism that allows dynamic reconfiguration between left and right side installations. This dynamic adaptability enables the same device structure to serve different user preferences and accessibility needs.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If conventional bidet attachments are used, then the basic cleaning function is provided, but the ability to introduce cleansing agents is lacking

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent integrates a cleansing agent dispensing system with the existing fluid flow path. The cleansing agents are introduced into the water stream through an integrated mechanism, combining the basic water spray function with enhanced cleansing capabilities in a unified system.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent uses an intermediary mechanism (such as a venturi injector or similar device) to introduce cleansing agents into the liquid flow without requiring complex pumps or separate delivery systems. The intermediary component leverages the existing water pressure to draw in and mix the cleansing agents, adding functionality while minimizing additional complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables easy and controlled perineal cleaning with the ability to simultaneously control liquid flow and introduce cleansing agents, accommodating both left- and right-handed users and healthcare providers without the need for additional equipment, enhancing user convenience and hygiene.

Implementation Method 1

a venturi feeder or injector which is designed to permit a supply container to be mounted thereto such that the contents of the supply container may be entrained into the liquid flow toward the nozzle

Methodology Applied
Scientific EffectVenturi effect: Venturi Effect

Data Source

PatentUS8904575B1Perineal spray attachment for toilets
Publication Date: 2014.12.09 LINDHEIMER THOMAS
  • US8904575B1 patent drawing
  • US8904575B1 patent drawing
  • US8904575B1 patent drawing

AI summary

A perineal spray attachment for use with a conventional toilet seat and which is specifically designed to be mounted to the underside of the seat for manipulation by either right or left hand. The attachment includes a discharge nozzle mounted at an end of an arcuately shaped conduit that is rigidly secured to a combination control valve and handle that is used to move the nozzle from a non-deployed position immediately beneath a portion of the toilet seat to a deployed position generally centrally of the opening in the toilet sear. The attachment also includes an inline venturi injector for entraining cleansing and other topical agents into the fluid flow through the discharge nozzle. The handle incorporates a valve for controlling liquid flow to the nozzle and which valve is actuated by an individual's thumb after the nozzle has been manipulated to the deployed position.