Catheter Guide With Dual Conduit And Shield For Urethral Distension

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Solution Overview

Problem

Current urinary tract catheters face challenges in efficiently guiding the catheter into the urethra due to friction and tortuosity, and existing guides do not effectively facilitate the insertion process.

Innovation Solution

A catheter guide comprising a first conduit, a second conduit, and a shield member, where the second conduit is connected to the outer surface of the first conduit, allowing fluid from a syringe to be used for distending the urethra, and the shield member provides a secure interface with the penis, enabling easy catheter insertion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional catheter insertion method is used, then the catheter can be inserted into the urethra, but high friction and tortuosity make the insertion process difficult and inefficient

Engineering Contradiction:
Improvecatheter insertion easeVSAvoidfriction and tortuosity
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The catheter guide is inserted into the urethra before the catheter itself, and fluid is injected in advance to distend the urethra and create a fluid pathway. This preliminary preparation reduces friction and tortuosity before the actual catheter insertion, making the subsequent catheter placement easier and more efficient.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A fluid intermediary substance is introduced between the catheter and the urethra wall. This fluid coating reduces friction and creates a smoother pathway, allowing the catheter to slide through the urethra more easily without direct contact with the urethral tissue.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If fluid is used to distend the urethra, then friction is reduced and insertion is facilitated, but additional equipment (syringe, second conduit) is required

Engineering Contradiction:
Improvecatheter insertion easeVSAvoidguide structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The catheter guide combines multiple functions into a single integrated device: the first conduit serves as both the insertion pathway and the structural framework, while the second conduit is integrated onto the first conduit to provide fluid injection capability. This merging reduces the need for separate devices and simplifies the overall system.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The first conduit serves multiple purposes: it acts as the insertion guide, provides structural support, and serves as the pathway for both the catheter and the fluid intermediary. The shield member also provides both mechanical protection and a secure interface with the penis, reducing the need for additional components.

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

3Reliability

If the shield member provides a secure interface with the penis, then insertion stability is improved, but the device structure becomes more complex

Engineering Contradiction:
Improveinsertion stabilityVSAvoidguide structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The shield member is integrated with the first conduit to form a unified structure that provides both mechanical protection and a secure interface with the penis. This integration ensures that the shield member and conduit work together as a single system, improving insertion stability without requiring separate components.

Inventive Principle:
Principle #5Merging (Combining)

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 catheter guide effectively distends the urethra, reduces friction, and facilitates smooth catheter insertion by using fluid to coat the catheter and urethra, improving insertion efficiency and preventing iatrogenic urethral compression.

Implementation Method 1

allowing fluid from a syringe to be used for distending the urethra

Methodology Applied
Scientific EffectFluid distension:

Implementation Method 2

facilitates smooth catheter insertion by using fluid to coat the catheter and urethra, improving insertion efficiency

Methodology Applied
Scientific EffectFluid coating: Coatings

Data Source

PatentUS10137279B2Catheter guide and method for utilizing the same
Publication Date: 2018.11.27 WILLIAM BEAUMONT HOSPITAL
  • US10137279B2 patent drawing
  • US10137279B2 patent drawing
  • US10137279B2 patent drawing

AI summary

An apparatus is disclosed. The apparatus includes a catheter guide (10, 10′, 10″, 10′″, 10′″). The catheter guide (10, 10′, 10″, 10′″, 10″″) includes a first conduit (12, 12′, 12″, 12′″ 12″″) a second conduit (14 14′ 14″ 14′″ 14″″) and a shield member (16 16′ 16″, 16′″, 16″″). The second conduit (14, 14′, 14″, 14′″, 14″″) is connected to an outer surface (26, 26′, 26″, 26′″, 26″″) of the first conduit (12, 12′, 12″, 12′″, 12″″).