Catheterization Tray Layout for Aseptic Urine Sampling

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Solution Overview

Problem

Existing catheterization procedures lead to increased risks of catheter-associated urinary tract infections (CAUTIs) due to variations in urine sampling techniques, resulting in false-positive diagnoses and inappropriate antibiotic treatments.

Innovation Solution

A catheterization package and method that includes a tray with compartments for a urinary catheter, urine-drainage bag, sampling-port access device, and other components, designed to facilitate aseptic urine sampling and reduce contamination risks, featuring compartments for swabs, lubricant, and step-by-step instructions for sterile procedures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional catheterization procedures are used with manual sampling techniques, then operational flexibility is maintained, but the risk of contamination and false-positive CAUTI diagnoses increases

Engineering Contradiction:

Improvediagnostic accuracyVSAvoidcontamination risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent employs disposable sterile sampling devices and single-use components within the catheterization package. These disposable elements eliminate cross-contamination risks between patients and ensure each sampling procedure starts with a guaranteed sterile state, directly addressing the contamination risk without compromising diagnostic accuracy

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent introduces a sterile barrier or intermediary mechanism between the sampling port and the external environment. This intermediary protects the urine sample from contamination during collection and transfer, ensuring that the diagnostic results reflect true patient status rather than environmental contaminants

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If comprehensive catheterization supplies are provided in a packaged tray, then aseptic procedure standardization is improved, but device complexity increases

Engineering Contradiction:

Improveprocedure standardizationVSAvoidpackage structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent combines multiple catheterization supplies (catheters, sampling devices, lubricants, gloves, and instructional materials) into a single integrated packaged tray. This merging ensures all necessary components are available together, standardizes the procedure by providing everything needed in one unit, and simplifies the overall process despite the increased number of individual components

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The packaged tray is divided into distinct compartments or sections, each dedicated to a specific component or function (e.g., catheter storage, sampling device storage, lubricant application area). This segmentation organizes the complexity into manageable sections, making the package easier to use while maintaining comprehensive supply availability

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250359959A1Catheterization Packages and Methods Thereof

Publication Date: 2025.11.27 CR BARD INC

AI summary

An intermittent catheter package includes a lubricant container including a lubricant disposed therein, a urinary catheter coupled to a urine-drainage bag, and a catheterization tray including surface instructions for performing a catheterization procedure. The catheterization tray includes a first compartment containing the lubricant container and a second compartment containing the urinary catheter. The second compartment can surround the first compartment. The catheterization tray further includes a third compartment containing the urine-drainage bag. The third compartment can be connected to the second compartment.