Active Implantable Device Probe Recognition Circuit
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Solution Overview
Problem
Active implantable medical devices that deliver both cardiac and peripheral therapies face a high risk of probe connection errors, which can lead to incorrect targeting of therapies, posing serious risks to patients, as they often use identical connectors for different probes without ensuring compatibility.
Innovation Solution
The device implements a system to verify and automatically configure the connection of probes before therapy initiation, using signal analysis to distinguish between cardiac and peripheral probes, ensuring correct coupling and inhibiting therapies if compatibility is not met, thereby preventing incorrect application of treatments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If identical connectors are used for both cardiac and peripheral probes, then device complexity and production costs are reduced, but the risk of probe connection errors increases
Solution Approach 1:
The system performs preliminary detection of probe type (cardiac or peripheral) during the connection phase, before therapy delivery begins. This preliminary identification allows the system to automatically configure the correct coupling between probes and therapy circuits, preventing connection errors while maintaining identical connectors for both probe types.
Solution Approach 2:
The system incorporates feedback mechanisms that continuously monitor and verify probe connections. By detecting probe characteristics and providing feedback to the control unit, the system can automatically adjust the coupling configuration to ensure correct therapy delivery, thereby maintaining reliability despite using identical connectors.
2Reliability
If manual verification of probe connections is performed, then connection accuracy is improved, but the implantation procedure time and complexity increase
Solution Approach 1:
The system performs self-verification of probe connections through automatic detection and identification of probe types. The control unit autonomously determines the correct coupling configuration without requiring manual verification by the practitioner, thereby maintaining connection accuracy while significantly reducing implantation procedure time.
Solution Approach 2:
The patent replaces manual mechanical verification with electronic detection systems. By using electrical signal analysis and impedance measurement to identify probe types and verify connections, the system eliminates time-consuming manual checks while maintaining or improving connection accuracy.
3Productivity
If probe connection errors occur, then therapy delivery continues, but patient safety is compromised due to incorrect therapy targeting
Solution Approach 1:
The system takes preliminary anti-action by detecting and preventing probe connection errors before therapy delivery begins. Through automatic probe identification and verification, the system prevents incorrect therapy targeting, thereby eliminating the harmful effects that would result from delivering cardiac therapy to peripheral organs or vice versa.
Solution Approach 2:
The system uses feedback mechanisms to continuously monitor probe connections and therapy delivery parameters. When a connection error is detected, the feedback loop triggers an alarm and prevents therapy delivery, thereby protecting the patient from adverse effects while maintaining therapy delivery continuity under correct conditions.
Data Source
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AI summary
The device comprises a cardiac therapy circuit with a first terminal and a peripheral therapy circuit with a second terminal. These terminals can accept either a cardiac sensing/stimulation lead or a peripheral organ sensing/stimulation lead. Means (30) for lead recognition and automatic terminal configuration include discriminating means for identifying the terminal on which a cardiac signal is detected, and switching means for coupling the cardiac therapy circuit to the latter terminal and the peripheral therapy circuit to the other terminal.