Disposable Roller Stethoscope Disinfection Device

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Solution Overview

Problem

Current methods for disinfecting stethoscopes are cumbersome, inconvenient, and often not practiced regularly by healthcare workers, leading to the transmission of hospital-acquired infections due to the lack of effective and easy-to-use disinfection tools.

Innovation Solution

A portable cleaning device with a disposable, non-liquid cartridge system that uses rollers and cleaning wipes to facilitate mechanical and chemical disinfection of stethoscopes, ensuring each wipe is used once and then disposed of, minimizing accidental contamination and requiring minimal user interaction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional disinfection methods (alcohol wipes, manual cleaning) are used, then disinfection can be performed, but the process is cumbersome and inconvenient leading to poor compliance

Engineering Contradiction:
Improveease of disinfectionVSAvoiddisinfection compliance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent employs disposable sterile wipes in a portable device that can be discarded after single use. This eliminates the need for healthcare workers to clean and sterilize reusable wiping materials, making the disinfection process as simple as using and discarding a wipe, similar to using disposable gloves or masks. This directly addresses the compliance issue by removing the burden of maintaining cleaning equipment.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The device is designed to be self-contained and portable, allowing healthcare workers to independently disinfect stethoscopes without needing access to centralized sterilization equipment or facilities. The device includes its own sterile wipes and mechanism, enabling the user to perform complete disinfection autonomously at the point of care.

Inventive Principle:
Principle #25Self-service

2Loss of substance

If reusable cleaning materials are used, then cost is reduced, but contamination risk increases due to improper cleaning or reuse

Engineering Contradiction:
Improvewaste of cleaning materialsVSAvoidcontamination risk
Core Design Contradiction:
Loss of substanceVSObject-affected harmful factors

Solution Approach 1:

The device uses disposable sterile wipes that are discarded after single use, eliminating the contamination risk associated with reusing cleaning materials. The low cost of these disposable wipes compared to the potential cost of infections makes this economically viable. Each wipe is packaged sterile and used once, then discarded, ensuring no cross-contamination.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Reliability

If complex disinfection protocols are implemented, then disinfection effectiveness improves, but user compliance decreases due to complexity

Engineering Contradiction:
Improvedisinfection effectivenessVSAvoiduser compliance
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The device combines multiple disinfection functions into a single integrated unit: sterile wiping, mechanical cleaning through rollers, and chemical disinfection. This consolidation simplifies the protocol to a single action of using the device, eliminating the need for separate steps and improving compliance while maintaining effectiveness.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The device serves as an intermediary tool that bridges the gap between simple user action and complex disinfection requirements. It encapsulates the complex chemistry and mechanics of effective disinfection within a simple-to-use device, allowing users to achieve proper disinfection through minimal effort.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Reliability

If liquid disinfectants are used, then disinfection capability is strong, but spill risk and handling complexity increase

Engineering Contradiction:
Improvedisinfection capabilityVSAvoidhandling complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The device uses pre-moistened disposable wipes containing disinfectant chemicals in controlled amounts. This eliminates the need for liquid reservoirs, pumps, or complex delivery systems. The disinfectant is already applied to the wipe in the correct concentration, ready for immediate use, and the wipe is discarded after use.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The disinfectant is applied to flexible wipe materials that conform to the stethoscope surface. These thin film wipes provide adequate chemical contact for disinfection without the bulk and handling complexity of liquid containers, while maintaining the necessary disinfection capability.

Inventive Principle:
Principle #30Flexible shells and thin films

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 device effectively reduces bacterial contamination on stethoscopes, enhancing patient safety by providing a convenient and efficient means for regular disinfection, potentially reducing hospital-acquired infections and improving compliance with disinfection practices.

Implementation Method 1

A portable cleaning device with a disposable, non-liquid cartridge system that uses rollers and cleaning wipes to facilitate mechanical and chemical disinfection

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

A portable cleaning device with a disposable, non-liquid cartridge system that uses rollers and cleaning wipes to facilitate mechanical and chemical disinfection of stethoscopes

Methodology Applied
Scientific EffectChemical disinfection:

Data Source

PatentUS10654075B2Apparatus and methods for treating a medical device and hand disinfection
Publication Date: 2020.05.19 LESIC ZORAN
  • US10654075B2 patent drawing
  • US10654075B2 patent drawing
  • US10654075B2 patent drawing

AI summary

A cleaning device and methods for cleaning medical devices, in particular, stethoscopes, is provided. In one aspect, the cleaning device includes a housing defining an interior chamber and configured to mount a wipe device, the housing including an aperture configured to receive a medical device, and a wipe device mounted within the interior chamber and including at least two rollers.