Wearable Heart Sound Sensor Layout for Non-Invasive Failure Detection

The patent uses the rib cage as an intermediary medium to transmit heart sounds from the heart to the external microphone. Instead of directly contacting the heart (invasive), the device places the microphone on the rib cage surface, allowing sound waves to pass through the bone to reach the sensor, thus achieving non-invasive monitoring while maintaining signal reliability

The patent replaces the mechanical/CardioMEMS-based direct pressure monitoring system with an acoustic field-based system. Instead of using mechanical sensors to directly measure pulmonary artery pressure, the device uses a microphone to detect heart sounds transmitted through the rib cage, substituting a non-invasive acoustic measurement approach for an invasive mechanical measurement system

The patent employs a disposable, low-cost disposable sensor unit that can be easily manufactured and discarded after use. This replaces expensive, reusable medical monitoring devices with an inexpensive single-use solution, significantly reducing the cost burden on patients and the healthcare system while maintaining adequate monitoring capability

The patent creates a simplified copy or adaptation of the monitoring function using readily available components (microphone, rib cage contact surface) instead of expensive specialized medical devices. By copying the essential monitoring function through alternative, cheaper means, the device achieves cost reduction while preserving the core capability to detect heart sounds