BLE Programmer Instruction Classes for Inductive and RF Link Control
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Solution Overview
Problem
Existing ambulatory medical devices lack secure and efficient methods for distinguishing between different classes of instructions based on communication links, particularly for high-risk changes that require clinical oversight, leading to potential safety risks.
Innovation Solution
Implementing a control circuit that decodes instructions using both inductive and RF communication links, requiring high-risk instructions to be initiated through the inductive link for enhanced security and clinical oversight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-risk instructions are restricted to inductive link initiation only, then patient safety and security are improved, but communication flexibility and ease of operation deteriorate
Solution Approach 1:
The instruction set is segmented into different classes (high-risk and standard instructions), each with different communication link requirements. High-risk instructions are restricted to inductive link initiation, while standard instructions can use either inductive or RF links, providing both security and flexibility
Solution Approach 2:
Different security policies are applied to different instruction types. Rather than uniformly restricting all instructions to inductive link only, the system applies enhanced security (inductive link requirement) locally to high-risk instructions while allowing RF link initiation for standard instructions
2Adaptability or versatility
If dual communication links (inductive and RF) are implemented, then communication versatility is improved, but device complexity increases
Solution Approach 1:
The AMD is designed with universal communication capability supporting both inductive and RF links. The control circuit can initiate and manage communication sessions on either link type, making the device adaptable to different communication scenarios while maintaining a unified instruction processing framework
3Reliability
If instruction class differentiation is implemented, then security control precision is improved, but processing complexity increases
Solution Approach 1:
Instructions are pre-classified into different classes (high-risk and standard) with predetermined security requirements. The control circuit performs preliminary classification of received instructions and automatically applies the appropriate communication link requirements, eliminating the need for complex real-time security decisions
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
Ensures secure and efficient communication by ensuring high-risk instructions are initiated through the inductive link, minimizing patient safety risks and maintaining device operation efficacy.
Implementation Method 1
an inductive link including a coil antenna configured to receive a near field communication signal using mutual inductance
Implementation Method 2
a radio frequency (RF) link including an RF antenna configured to receive an RF communication signal during a communication session
Data Source
AI summary
Systems and methods are disclosed to an ambulatory medical device including an inductive link, a radio frequency (RF) link, and a control circuit. The inductive link includes a coil antenna configured to receive a near field communication signal using mutual inductance. The RF link includes an RF antenna configured to receive an RF communication signal during a communication session. The control circuit is configured to decode an instruction received in the RF communication signal, wherein a class of the instruction requires the communication session to be started using the inductive link when performing the instruction; perform the instruction when the communication session is started using the inductive link and reject the instruction when the communication session is started using the RF link.