Infusion Pump Drop Detection Mechanism
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Solution Overview
Problem
Infusion pump systems face challenges in accurately delivering medicine due to potential damage from physical impacts, which can lead to over-dosage or under-dosage of medication, and existing solutions do not adequately address the need for real-time detection and initiation of safety measures to prevent such errors.
Innovation Solution
The infusion pump system is equipped with a drop detection mechanism that senses impacts above a threshold level, enabling the initiation of patient safety countermeasures, such as disabling medicine delivery and alerting the user, by mechanically mounting a drop detector to the pump housing and electrically communicating with control circuitry to prevent misuse of a potentially damaged system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the infusion pump device is made portable and wearable, then patient convenience and mobility are improved, but the risk of physical impact and damage to the drive system increases
Solution Approach 1:
The drop detection mechanism is activated before the infusion pump is used to detect potential damage from physical impact. The system performs preliminary detection of impact events and disables the drive system proactively before damage can occur, rather than waiting for damage to manifest during operation.
Solution Approach 2:
The system continuously monitors for impact events through the drop detection mechanism and provides feedback to the control circuitry. When an impact exceeding the threshold is detected, the system immediately disables the drive system, creating a closed-loop safety mechanism that responds to environmental conditions affecting pump integrity.
2Reliability
If the pump system continuously monitors for impacts, then patient safety is improved, but the device complexity and power consumption increase
Solution Approach 1:
The drop detection mechanism is implemented as a separate, dedicated component mechanically mounted to the pump housing but electrically connected to the control circuitry. This extraction of the detection function into a standalone mechanism simplifies the overall system architecture while maintaining continuous monitoring capability.
Solution Approach 2:
The system replaces complex continuous electronic monitoring with a mechanical drop detection mechanism that passively detects impact events through physical movement or deformation. This mechanical approach reduces computational complexity and power consumption while maintaining effective impact detection.
3Measurement precision
If the pump device includes integrated drop detection, then the ability to detect damage prior to use is improved, but the manufacturing cost and device complexity increase
Solution Approach 1:
The drop detection mechanism is mechanically integrated with the pump housing structure, combining the detection function with the existing mechanical framework of the device. This merging approach allows impact detection capability to be added without requiring separate mounting structures or complex assembly procedures.
Solution Approach 2:
The pump housing structure serves dual purposes: it provides structural support for the portable device and simultaneously acts as the mounting structure for the drop detection mechanism. This multi-functionality reduces the number of separate components needed and simplifies the manufacturing process.
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
The system effectively detects and responds to impacts, preventing potential over-dosage or under-dosage by disabling the pump and alerting the user, thus ensuring patient safety and maintaining accurate medication delivery.
Implementation Method 1
a drop detector mechanism mounted to the pump housing that can detect an impact applied to the pump housing that is greater than or equal to an impact threshold level
Data Source
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AI summary
Some embodiments of an infusion pump system may be configured to detect when at least one component of the pump system is exposed to an impact above a threshold level. In particular embodiments, the infusion pump system can be equipped with an impact detection system that can sense when an impact above the threshold level has occurred to the pump device, which thereby enables the infusion pump system to initiate appropriate patient safety countermeasures.