Remotely Powered Sensor With Segmented Antenna
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Solution Overview
Problem
Existing implantable analyte sensor systems face challenges in simultaneously detecting analytes and maintaining a reasonable wireless transmission distance between the implanted sensor element and an external reader/transmitter, as they require an antenna for both power reception and sensing at the same location, which can conflict and limit their application.
Innovation Solution
The system physically and electrically partitions analyte-sensing and power/signal-transmitting components, connecting them with a wire or cable, allowing the analyte sensor module to be implanted for optimal sensing and the transmitter module to be located for optimal transmission, enabling data and power exchange within the body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the antenna is located at the same site as the sensing element for power reception and analyte detection, then the sensor can be compact and simple in structure, but the wireless transmission distance is limited and the application range is restricted
Solution Approach 1:
The sensor system is divided into two separate modules: a sensing element module for analyte detection and a transmitter module for wireless communication. This segmentation allows each module to be optimized for its specific function and implanted at different locations within the body, resolving the contradiction between structural simplicity and application versatility.
Solution Approach 2:
A cable connection serves as an intermediary between the sensing element module and the transmitter module, enabling power and data transmission while allowing the modules to be positioned at different locations. This intermediary solution maintains system integration while overcoming the limitation of co-located antenna and sensing element.
2Adaptability or versatility
If the antenna is positioned for optimal wireless transmission distance from the external reader, then the transmission range is improved, but the sensing element cannot be placed at the ideal locus for analyte detection
Solution Approach 1:
The system separates the sensing function from the transmission function into distinct modules, allowing the sensing element to be positioned at the optimal locus for analyte detection (such as interstitial fluid contact) while the transmitter module is positioned for optimal wireless communication with the external reader.
Solution Approach 2:
The cable connection acts as a mediator that transmits power and data signals between the sensing element module and the transmitter module, enabling the modules to be spatially separated while maintaining functional integration. This allows each module to be optimally positioned for its specific purpose.
3Ease of operation
If the sensing element and transmitter are integrated in a single implantable unit, then the device is simpler to implant and operate, but the location flexibility for optimal sensing and transmission is reduced
Solution Approach 1:
The implantable system is segmented into two modules connected by a cable, providing location flexibility for optimal sensing and transmission functions. Despite this segmentation, the system remains relatively simple to implant as both modules are introduced through minimally invasive procedures and the cable connection is established within the body.
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 configuration allows for effective analyte detection and wireless communication over a greater range, enhancing the system's versatility and application scope by separating the sensing and transmission functions while maintaining proximity to the analyte.
Implementation Method 1
The transmitter module may include an antenna configured for conveying radio frequency signals
Data Source
AI summary
A system and method for detecting the amount or concentration of an analyte in a medium in living organism. The system may include an analyte sensor module and a transmitter module, which may be separate and distinct components. The analyte sensor module and transmitter module may be at different locations but connected by one or more transmission elements. The analyte sensor may include indicator elements configured to exhibit a detectable property based on the amount or concentration of the analyte in proximity to the indicator elements. The analyte sensor may include sensor elements configured to generate a data signal based on the detectable property exhibited by the indicator elements. The transmission elements may be configured to convey data signals generated by the sensor elements from the analyte sensor module to the transmitter module. The transmitter module may include an antenna.