Accelerometer Sensor Integration for Simpler SDB Implantation
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Solution Overview
Problem
Existing technologies for sensing physiologic information in the context of sleep disordered breathing (SDB) often require complex implantation procedures and multiple sensor types, which can complicate the process and reduce long-term stability.
Innovation Solution
The use of an accelerometer-based sensor integrated with an implantable pulse generator (IPG) assembly, either directly or through a header-connector, eliminates the need for separate leads and ensures proper orientation, simplifying implantation and enhancing sensor stability by maintaining a fixed orientation relative to the patient's body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate leads and multiple sensor types are used for sensing physiologic information, then measurement precision is improved, but device complexity increases and implantation becomes more difficult
Solution Approach 1:
The patent combines multiple sensor types (accelerometer, temperature sensor, humidity sensor) and signal processing circuits into a single integrated sensor assembly that connects to the IPG via a single lead. This merging approach maintains comprehensive physiologic monitoring capability while reducing the number of separate leads and components required, thereby resolving the contradiction between measurement precision and device complexity
Solution Approach 2:
The sensor assembly is designed as a multi-functional unit that can detect multiple physiologic parameters (respiratory effort, temperature, humidity) simultaneously through a single integration point. This universal design allows one lead to perform the functions previously requiring multiple separate leads, reducing system complexity while preserving comprehensive sensing accuracy
2Adaptability or versatility
If separate leads are used for sensor integration, then adaptability is improved, but ease of operation deteriorates due to complex implantation procedures
Solution Approach 1:
By merging the sensor assembly and its connection interface into a single integrated unit that attaches to the IPG housing, the patent eliminates the need for separate lead implantation procedures. This reduces the number of surgical steps and manipulation requirements, making the implantation process easier while maintaining adaptability through the integrated design
3Measurement precision
If multiple sensor types are integrated separately, then measurement precision is improved, but reliability decreases due to reduced long-term stability
Solution Approach 1:
The patent merges multiple sensor types into a single integrated assembly that is secured to the IPG housing as one unit. This integration improves reliability by reducing the number of separate connection points and potential failure sites, while maintaining measurement precision through the combined sensing capabilities of multiple sensor types within the unified assembly
4Adaptability or versatility
If complex implantation procedures are used, then adaptability is improved, but loss of time increases due to multiple surgical steps
Solution Approach 1:
By combining multiple sensors and their integration interface into a single assembly that attaches to the IPG housing in one step, the patent significantly reduces implantation time. The integrated design maintains adaptability through its unified interface while eliminating the need for multiple separate surgical steps that would otherwise be required to implant and connect individual sensors
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 approach simplifies the implantation process, reduces the number of surgical steps, and ensures accurate sensing of physiologic parameters, particularly respiratory activity, thereby improving the effectiveness of SDB therapy.
Implementation Method 1
at least one sensor includes an accelerometer-based sensor
Data Source
AI summary
A first sensing element including an accelerometer-based sensor for sleep disordered breathing (SDB) care.