Rectal Water-Jet Nozzle for Comfortable Bowel Emptying

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Solution Overview

Problem

Current methods for rectal cleansing, such as enemas, are painful and cumbersome, especially for individuals with hemorrhoids, and existing sanitary devices are not designed to efficiently rinse or empty the rectum effectively.

Innovation Solution

A method using an electronic sanitary appliance with a retractable nozzle head that sprays a linear water flow into the rectum to a depth of 5 cm to 10 cm, adjustable pressure, and a truncated conical nozzle shape to facilitate rectal cleansing and emptying without causing injury, suitable for individuals with constipation or hemorrhoids.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a tube is inserted into the patient's rectum for enema injection, then the rectum can be cleaned, but the patient experiences pain and discomfort, especially those with hemorrhoids

Engineering Contradiction:

Improverectal cleaning effectivenessVSAvoidpain and discomfort

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical insertion of a rigid tube with a water jet spraying system. The water jet device uses a nozzle to spray water into the rectum, eliminating the need for physical tube insertion that causes pain and discomfort, especially for patients with hemorrhoids.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent employs hydraulic principles by using pressurized water flow through a nozzle to deliver cleansing fluid into the rectum. The water jet mechanism uses fluid pressure and flow dynamics to achieve effective rectal cleaning without mechanical contact.

Inventive Principle:

Principle #29Pneumatics and hydraulics

2Reliability

If a tube is inserted into the rectum for enema injection, then the rectum can be cleaned, but the anal sphincter shrinks due to fear and tension, making insertion difficult

Engineering Contradiction:

Improverectal cleaning effectivenessVSAvoidtube insertion difficulty

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the mechanical tube insertion process with a water jet spraying system. The nozzle sprays water into the rectum without requiring physical insertion through the anal sphincter, thereby eliminating the problem of sphincter contraction and insertion difficulty.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If a traditional enema tube is used, then the rectum can be emptied, but the procedure is cumbersome requiring repeated insertion and extraction and lubrication

Engineering Contradiction:

Improverectal emptying efficiencyVSAvoidprocedure complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces the complex mechanical tube insertion and extraction process with a water jet spraying system. The nozzle remains stationary or is easily positioned, and water is sprayed into the rectum through the anus without requiring repeated insertion and extraction operations, significantly simplifying the procedure.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Adaptability or versatility

If existing water spraying devices are used for body cleaning, then exterior cleaning is achieved, but they cannot effectively rinse deeper parts like the rectum

Engineering Contradiction:

Improvecleaning area coverageVSAvoiddeep rectal rinsing capability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent designs a specialized nozzle structure with specific geometric features (such as a truncated cone shape with particular angles) that concentrates water flow into a directed jet capable of reaching deep into the rectum. This localized optimization of the nozzle geometry enables effective deep rectal rinsing while maintaining ease of operation.

Inventive Principle:

Principle #3Local quality

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 method efficiently softens and breaks down stool, reduces pain, and allows for easy defecation, avoiding anal rupture and promoting comfortable rectal emptying, suitable for daily use and improving overall health by preventing toxin reabsorption.

Implementation Method 1

a water pump (51) for supplying water to the nozzle head (11)

Methodology Applied

Scientific EffectFluid pressure and flow: Pressure Gradient

Implementation Method 2

the hole (12a) of the nozzle head (11) is in a truncated conical shape

Methodology Applied

Scientific EffectFluid flow concentration: Laminar Flow

Data Source

PatentUS9044533B2Method for emptying rectum

Publication Date: 2015.06.02 HANYU GRP CO LTD

AI summary

A method for emptying the rectum by using an electronic sanitary appliance arranged on a toilet, comprises: extending out a rectum flushing nozzle so that it locates underneath of the anus of a user who is seated on the toilet; spraying a first linear water flow to the anus from the rectum flushing nozzle, modifying the relative position between the rectum flushing nozzle and the user's anus so that the first linear water flow aims at the anus; spraying the anus with a second linear water flow from the rectum flushing nozzle to pass through the anus and into the rectum; spraying continuously the second linear water flow and stopping spray of the second linear water flow when the user has a desire to defecate, then the user discharges the substance in the rectum.