Modular Auscultation Connector for Disposable Sensor Swapping

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Solution Overview

Problem

Conventional stethoscopes are limited by the integration of a single sound sensor type, which can compromise safety and sound quality when used with disposable stethoscopes in infectious environments, and attaching personal stethoscopes under personal protective equipment (PPE) is cumbersome.

Innovation Solution

A modular auscultation device with interchangeable sound sensors and connectors that allow easy attachment and detachment, enabling use of personal stethoscopes with disposable sensors while maintaining hygiene and safety by keeping the personal headset clean.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional stethoscope is designed with a single integrated sound sensor, then the device structure is simple, but the adaptability and versatility are limited

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

Solution Approach 1:

The stethoscope is divided into separate modular components: a reusable headset assembly and interchangeable sound sensor assemblies. The sound sensor assembly includes the chest piece, flexible tubing, and connector as separable components that can be detached and replaced independently from the headset, enabling users to switch between different sensor types without affecting the main device structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The headset assembly is designed with a universal connector interface that can accommodate multiple types of sound sensor assemblies (mechanical, electronic, disposable). The standardized coupling mechanism allows a single headset to work with various sensor configurations, making the device multi-functional and adaptable to different clinical needs and infection control requirements.

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

2Reliability

If a disposable stethoscope is used in infectious environments, then hygiene and safety are improved, but sound quality and fit are inferior

Engineering Contradiction:
ImprovehygieneVSAvoidsound quality
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The system separates the disposable sound sensor assembly from the reusable headset. The disposable assembly includes only the chest piece and associated tubing that contacts the patient, while the headset with the quality microphone and processing electronics is reused and sterilized between patients, maintaining both hygiene and sound quality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sound sensor assembly is designed as a disposable component that can be easily discarded after single use in infectious environments, eliminating the need to clean and sterilize the entire stethoscope. This disposable assembly includes the chest piece and flexible tubing that may have been contaminated, while the expensive headset with quality sensors is preserved for repeated use.

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

3Reliability

If a personal stethoscope is attached under PPE, then safety is improved, but ease of operation is reduced

Engineering Contradiction:
ImprovesafetyVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The stethoscope is segmented into a headset assembly that wears under PPE and a detachable sound sensor assembly that attaches to the external surface of the PPE. This allows the personal headset to be positioned under the protective equipment while the disposable sensor attaches to the outside, making it easy to put on and remove without compromising safety or ease of operation.

Inventive Principle:
Principle #1Segmentation

4Adaptability or versatility

If a personal stethoscope is used with disposable sensors, then adaptability is improved, but device complexity increases

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

Solution Approach 1:

The headset assembly incorporates a universal coupling interface that can connect to multiple types of sound sensor assemblies through a standardized mechanism. This universal interface simplifies the connection process and reduces the apparent complexity by providing a single, consistent interface for various sensor types, even though the system is highly versatile.

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

Data Source

PatentUS12582375B2Modular auscultation device
Publication Date: 2026.03.24 SOLVENTUM INTELLECTUAL PROPERTIES CO
  • US12582375B2 patent drawing
  • US12582375B2 patent drawing
  • US12582375B2 patent drawing

AI summary

An auscultation device having a headset, a chest piece, and tubing connecting the chest piece to the headset. At least one connector disposed in the tubing between the headset and the chest piece and the at least one connector comprising a first female connector portion and a second male connector portion. The first female connector portion having a receiving cavity and a collar which is slidable and used to lock the first and second portions together, and the second male connector portion having a through hole, a compressible O-ring, and a latching ring collar.