Wireless MEMS Left Atrial Pressure Sensor Without Leads
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing devices for monitoring left atrial pressure (LAP) in heart failure patients face challenges such as lead-related reliability issues, invasive procedures, and inaccurate surrogate measurements, particularly in patients with pulmonary hypertension or other pulmonary conditions, necessitating a need for improved, safe, and accurate LAP measurement techniques.
Innovation Solution
A wireless and leadless left atrial pressure sensor is delivered through the atrial septum using minimally invasive methods, employing anchoring elements and inductive telemetry for secure implantation and power supply, eliminating the need for invasive leads and providing accurate hemodynamic data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lead-based pressure sensors are used for LAP measurement, then measurement capability is provided, but lead-related reliability issues and invasive procedures are introduced
Solution Approach 1:
The patent extracts and eliminates the lead component from the pressure sensor system. The wireless pressure sensor is designed to be implanted directly in the left atrium without requiring leads for power or signal transmission, thereby removing lead-related reliability issues while maintaining measurement capability.
Solution Approach 2:
The patent replaces the mechanical lead-based power and signal transmission system with a wireless electromagnetic coupling system. The sensor communicates and receives power wirelessly through the atrial wall, eliminating the need for physical leads to penetrate the heart structure.
2Reliability
If silicone lead-based sensors are used for LAP measurement, then measurement capability is provided, but device-pocket infections and thrombus formation risks are introduced
Solution Approach 1:
The patent removes the silicone lead component that caused harmful effects. By eliminating the lead structure entirely and using a wireless implantable pressure sensor, the device avoids creating foreign body interfaces that could lead to infections or thrombus formation.
Solution Approach 2:
The wireless sensor is designed to be self-contained with integrated power and communication capabilities, eliminating the need for external lead connections that would create additional interfaces for harmful factors like infection and thrombus formation.
3Productivity
If surrogate measurements are used for LAP assessment, then measurement capability is provided, but measurement accuracy deteriorates in patients with pulmonary hypertension
Solution Approach 1:
The patent segments the measurement function by placing the pressure sensor directly in the left atrium rather than using surrogate measurements from other locations. This direct placement ensures accurate LAP measurement regardless of pulmonary conditions, while maintaining monitoring efficiency through wireless operation.
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 wireless sensor ensures safe and accurate LAP monitoring, reducing device-related complications and enabling timely interventions for heart failure management, enhancing treatment efficacy.
Implementation Method 1
employing anchoring elements and inductive telemetry for secure implantation and power supply
Data Source
AI summary
Systems for monitoring left atrial pressure using implantable cardiac monitoring devices and, more specifically, to a left atrial pressure sensor implanted through a septal wall are presented herein.