Implantable Fluid Delivery Device Backup Infusion Schedule
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Solution Overview
Problem
Implantable fluid delivery devices face challenges in reliably delivering therapeutic agents due to memory corruption, power surges, and other errors, which can lead to disruption of treatment and patient symptoms returning.
Innovation Solution
Incorporating a default infusion schedule stored on a backup memory within the device, allowing it to continue delivering a therapeutic agent according to a predefined schedule even if an error condition occurs, ensuring continuous treatment until the device can be reprogrammed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a programmable therapy program is used to deliver therapeutic agents, then treatment precision and effectiveness are improved, but device reliability deteriorates due to memory corruption and power surges
Solution Approach 1:
The patent applies preliminary action by pre-storing a default infusion schedule in backup memory before any error conditions occur. This default schedule is prepared in advance and can be immediately activated when memory corruption or power surges are detected, eliminating the need for complex error handling algorithms and ensuring continuous therapy delivery without interruption.
Solution Approach 2:
The patent implements copying by maintaining a duplicate default infusion schedule in backup memory separate from the primary programmable therapy program. This copy serves as a fail-safe mechanism that can be activated when the primary program becomes corrupted, ensuring treatment continuity without requiring external intervention or complex recovery procedures.
2Reliability
If error detection and switching mechanisms are added to ensure continuous therapy, then device reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies the taking out principle by extracting the error handling and schedule switching logic from the main programmable therapy delivery system. The default infusion schedule operates independently in backup memory with simple corruption detection mechanisms, separating the critical continuous therapy function from the complex programmable therapy features that are prone to corruption.
Solution Approach 2:
The patent implements self-service through automatic error detection and switching mechanisms that operate without external intervention. The system continuously monitors for memory corruption and power surge conditions, automatically switching between the programmable therapy program and the default infusion schedule based on detected error conditions, eliminating the need for manual intervention or complex external control systems.
Data Source
AI summary
A fluid delivery system comprises a pump configured to deliver a therapeutic agent to a patient, a memory storing a therapy program defining the delivery of the therapeutic agent to the patient by the pump and a default infusion schedule based on the therapy program, and a processor configured to control the pump to deliver the therapeutic agent to the patient according to the therapy program, to determine an error condition that prevents the pump from continuing to deliver therapy according to the therapy program, and, upon determination of the error condition, to control the pump to deliver the therapeutic agent to the patient according to the default infusion schedule.