Stethoscope Digitizer with Membrane Protection and Wireless Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing solutions fail to digitize the sound of traditional stethoscopes and send this data to electronic instruments, limiting the use of existing stethoscopes and not allowing for the preservation and protection of the stethoscope membrane during non-use.
Innovation Solution
A device with lateral slots and hooking lips for coupling with the stethoscope membrane and Y-shaped tube, incorporating pre-amplification, analog filtering, and digital signal processing to transmit sound via Bluetooth to electronic devices, maintaining the original sound quality and allowing easy storage and reuse of the stethoscope.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a digital stethoscope is used to digitize and transmit sound to electronic devices, then the functionality of sending sound data to electronic instruments is improved, but the device complexity and cost increase
Solution Approach 1:
The device is divided into separate functional modules: a digitalizer unit that connects to the stethoscope membrane, a processing unit with pre-amplification and filtering, and a wireless transmission module. This segmentation allows each component to perform its specific function efficiently while keeping the overall system manageable and adaptable to different stethoscope types.
Solution Approach 2:
The device is designed with universal compatibility to work with various stethoscope models and connect to multiple electronic instruments (smartphones, tablets, computers). The coupling mechanism accommodates different stethoscope membranes, and the wireless transmission supports various electronic devices, making the system highly versatile without requiring model-specific designs.
2Adaptability or versatility
If a battery-powered digital stethoscope is used, then the ability to send sound data electronically is improved, but the reliability decreases when batteries are discharged
Solution Approach 1:
The device incorporates pre-amplification and analog filtering stages before digital conversion, preparing the signal in advance to maximize the use of available power. This preliminary processing reduces the power requirements for subsequent digital processing and transmission, ensuring continuous operation even with limited battery power or during transitions between power sources.
Solution Approach 2:
The system can dynamically adjust transmission power, sampling rate, and processing intensity based on battery status and operational needs. When battery power is low or during emergencies, the device automatically reduces power consumption parameters while maintaining core functionality, ensuring reliable operation across different power conditions.
3Ease of operation
If the stethoscope membrane is exposed during non-use, then the ease of operation is improved, but the membrane protection deteriorates
Solution Approach 1:
The stethoscope membrane is stored within the housing of the digitalizer device when not in use. The membrane can be quickly inserted into and removed from the protective compartment, allowing the membrane to be nested within the device body for protection while remaining easily accessible for rapid deployment during examinations.
Solution Approach 2:
The device housing serves as an intermediary protective structure between the membrane and environmental hazards. The coupling mechanism includes protective features that shield the membrane during storage and transport, while allowing quick access when needed, thus mediating between protection requirements and ease of operation.
4Adaptability or versatility
If a modified stethoscope with integrated digitalization components is used, then the functionality of digitizing sound is improved, but the ease of manufacture deteriorates
Solution Approach 1:
Rather than modifying the entire stethoscope, the digitalization functionality is separated into an independent external device that connects to the stethoscope membrane. This segmentation allows traditional stethoscopes to remain unchanged and easily manufactured, while the digitalizer unit contains all the complex electronic components in a separate, modular package that can be produced and updated independently.
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
Enables the digitization and transmission of stethoscope sounds to electronic instruments, ensuring continuous functionality even without battery power, while protecting the stethoscope membrane and maintaining original sound quality, facilitating remote monitoring and pathology detection.
Implementation Method 1
a microphone transforming the acoustic waves into an electrical signal
Implementation Method 2
a pre-amplifier amplifying the electrical signal
Implementation Method 3
an analog filter processing the electrical signal
Implementation Method 4
an analog-to-digital converter transforming the processed electrical signal into digital data
Implementation Method 5
a Bluetooth transmitter transmitting the digital data to an electronic device
Data Source
Figure 1~1B
Figure 2
Figure 3~3B
AI summary
Device (1) for digitizing the sound of a stethoscope (10) and sending it to an electronic instrument, comprising a solid body (2) equipped with lateral slots (3a, 3b) able to house the ear tips (11) of the stethoscope (10) in an active measurement configuration, and with a hooking lip (4) and a hooking system (2a) for connecting the device (1) respectively to the membrane (13) and to the Y-shaped tube (14) of the stethoscope (10) in a passive rest configuration.