Septal Closure Device with Integrated Differential Pressure Sensing
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Solution Overview
Problem
Existing medical technologies lack effective methods for direct cardiac pressure monitoring, particularly in the left atrium, which is crucial for early detection of congestive heart failure, leading to unreliable symptom-based treatments and high hospital readmissions.
Innovation Solution
Implantable septal closure devices with integrated pressure sensors, such as those with occluding membranes and tissue anchors, allow for direct monitoring of cardiac pressures, including differential pressure between atria, enabling early detection of fluid buildup and guiding proactive medication adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If direct cardiac pressure monitoring is implemented, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent combines pressure sensing functionality with existing cardiac implant devices (occluders, spacers, repair devices) by integrating pressure sensor elements directly into these devices. This merging approach allows direct cardiac pressure monitoring to be implemented without adding separate monitoring devices, thereby improving measurement precision while minimizing the increase in overall device complexity.
2Measurement precision
If pressure sensor device is attached to occluding membrane, then measurement precision is improved, but ease of manufacture deteriorates
Solution Approach 1:
The pressure sensor device is pre-attached to the occluding membrane during the manufacturing process before final implantation. This preliminary action ensures that the sensor is correctly positioned and secured to the membrane, improving measurement precision while allowing the assembly to be completed in a controlled manufacturing environment, thereby mitigating the impact on ease of manufacture.
3Measurement precision
If multiple pressure sensor elements are used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The pressure monitoring function is segmented into multiple sensor elements (first pressure sensor element on one side of the membrane, second pressure sensor element on the other side) that can be independently positioned and function. This segmentation enables differential pressure measurement across the membrane, improving measurement precision while allowing each sensor element to be relatively simple in structure, thereby managing overall device complexity.
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
Facilitates early detection of congestive heart failure, reducing hospital readmissions and morbidity by providing accurate pressure monitoring and enabling timely intervention.
Implementation Method 1
a pressure sensor device attached to the occluding membrane. The pressure sensor device comprises a first portion disposed on a first side of the occluding membrane and a second portion disposed on a second side of the occluding membrane
Data Source
AI summary
A septal closure device includes a frame comprising one or more tissue anchor features, an occluding membrane, and a pressure sensor device attached to the occluding membrane.