Implantable Sensor Bridge for Anti-Collision Data Transmission
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Solution Overview
Problem
Existing implantable sensors face challenges in efficiently transmitting medical diagnostic data, such as strain readings, to wireless readers without interference and data collisions, especially when multiple sensors are implanted in a patient.
Innovation Solution
The implementation of an implantable sensor apparatus with a bridge and housing that includes strain gauges and control circuitry, which uses a clamping apparatus to secure to spinal fusion rods and employs anti-collision communication schemes to minimize data transmission conflicts, allowing multiple sensors to transmit data effectively to a wireless reader.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple implantable sensors are used to monitor medical conditions, then measurement precision and monitoring capability are improved, but data transmission interference and collisions increase
Solution Approach 1:
The system performs preliminary actions by establishing a communication schedule before data transmission begins. Each sensor is assigned specific time slots or triggers for transmission, preventing collisions before they occur. The wireless reader and sensors negotiate communication parameters in advance, ensuring reliable data transfer from multiple sensors without interference.
Solution Approach 2:
The communication scheme is dynamic and adaptive, allowing sensors to adjust their transmission timing based on detected conditions. When multiple sensors are present, they dynamically coordinate their transmission moments based on detected signals from other sensors, enabling flexible collision avoidance while maintaining continuous monitoring capability.
2Productivity
If multiple sensors transmit data simultaneously, then productivity and data acquisition speed are improved, but data collisions and interference increase
Solution Approach 1:
The system implements periodic action by organizing sensor transmissions into structured time intervals or cycles. Each sensor transmits data at predetermined periodic intervals or in response to specific periodic trigger events, ensuring that multiple sensors can operate efficiently without overwhelming the communication channel. This periodic structure maintains high productivity while preventing data collisions.
3Reliability
If anti-collision communication schemes are implemented, then data transmission reliability is improved, but device complexity increases
Solution Approach 1:
The wireless reader acts as an intermediary that manages communication between multiple sensors. Rather than requiring complex peer-to-peer coordination protocols between sensors, the reader mediates all communications, assigning transmission opportunities and resolving conflicts centrally. This approach improves reliability while keeping individual sensor complexity low.
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 reliable and efficient transmission of medical diagnostic data from multiple implantable sensors, reducing the time required for data acquisition and minimizing interference, thereby improving the monitoring and analysis of spinal fusion processes and other medical conditions.
Implementation Method 1
a bridge and a separate housing mounted adjacent a surface of the bridge. The bridge may define one or more legs, and may house various circuitry configured, e.g., to obtain various types of medical diagnostic data, such as strain measured between legs of the bridge
Data Source
AI summary
Systems, methods, and apparatus are described herein for obtaining medical diagnostic measurements from implanted sensors. In various embodiments, a spinal implant-monitoring apparatus may include: a bridge defining a first hermetically-sealed interior and two or more legs; one or more strain gauges contained within the first hermetically-sealed interior of the bridge to provide a signal indicative of strain measured between the legs of the bridge; a housing defining a second hermetically-sealed interior, the housing mounted on a surface of the bridge; and control circuitry contained within the second hermetically-sealed interior. The control circuitry may be in communication with the one or more strain gauges and may be configured to convert the signal into digital data representative of the signal. Methods of using such apparatus are also disclosed.