Sensor Implant Stabilizing Tether Anchoring
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Solution Overview
Problem
Current medical implant devices lack effective methods for monitoring physiological parameters, such as fluid pressure, in the heart's chambers and vessels, particularly the left atrium, which is crucial for diagnosing and managing conditions like congestive heart failure.
Innovation Solution
The development of a sensor implant device with a sensor body, anchors for tissue anchoring, a detachable tip, and a shape-set tether to direct the tip away from the sensor body, facilitating monitoring of physiological parameters in the heart's chambers and vessels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensor implant device is designed to monitor physiological parameters in the heart, then measurement precision is improved, but device complexity increases due to the need for anchors, tethers, and detachable tips
Solution Approach 1:
The device is divided into distinct functional segments: a sensor body for measurement, a tether for positioning and stabilization, and a detachable tip for delivery and tissue engagement. This segmentation allows each component to be optimized independently while simplifying the overall implantation process.
Solution Approach 2:
The detachable tip is extracted as a separate component that can be removed after implantation. This extraction principle reduces the permanent device complexity by eliminating the need for a complex permanent tip structure, while still providing the necessary functions during delivery and initial anchoring.
2Stability of the object's composition
If anchors are added to anchor the sensor body within tissue wall, then stability of the object's composition is improved, but device complexity increases
Solution Approach 1:
The anchors are merged with the tether structure, forming an integrated stabilization system. The tether itself serves as an anchoring mechanism by engaging with the tissue wall, eliminating the need for separate complex anchor structures while maintaining stable positioning of the sensor body.
3Ease of operation
If a tether is used to direct the detachable tip away from the sensor body, then ease of operation is improved during delivery, but device complexity increases
Solution Approach 1:
The tether is designed with self-directed properties that automatically guide the detachable tip away from the sensor body during delivery without requiring external manipulation. The tether's inherent flexibility and configuration enable it to self-position and stabilize the device during implantation, reducing the complexity of control mechanisms.
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
This solution enables precise monitoring of physiological parameters, allowing for early detection of conditions like congestive heart failure, reducing hospital readmissions, and improving patient health outcomes by guiding appropriate medication titration.
Implementation Method 1
The tether may be shape set to direct the detachable tip away from the sensor body. The tether may be composed a shape memory alloy.
Data Source
AI summary
A sensor implant device comprising a sensor body comprising at least a first sensor component, one or more anchors coupled to the sensor body and configured to anchor the sensor body within a tissue wall, a detachable tip, and a tether connecting the detachable tip to the sensor body.