Infusion Pump Touch Screen Locking via Door Position

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Solution Overview

Problem

Infusion pumps often experience accidental parameter changes due to user interaction with the touch screen when opening or closing the pump door, leading to inefficiencies and potential medical errors.

Innovation Solution

A screen control method that generates an information display interface based on the infusion pump's operating state, stopping processing of manipulation commands on the touch screen when the pump door is opened and resuming processing upon unlocking, preventing unintended changes to infusion parameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the touch screen is accessible during pump door operation, then ease of operation is improved, but reliability deteriorates due to accidental parameter changes

Engineering Contradiction:
Improvetouch screen accessibilityVSAvoidparameter stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The touch screen transitions between locked and unlocked states dynamically based on pump door position. When the door is opened during infusion, the screen automatically locks to prevent accidental parameter changes, then unlocks when the door is closed, adapting its accessibility to the operational context

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system continuously monitors pump door status and uses this feedback to control touch screen accessibility. The door position sensor provides real-time feedback to the controller, which adjusts the touch screen state accordingly, creating a closed-loop safety mechanism

Inventive Principle:
Principle #23Feedback

2Reliability

If the touch screen is locked during door operation, then reliability is improved by preventing parameter changes, but ease of operation deteriorates due to reduced accessibility

Engineering Contradiction:
Improveparameter stabilityVSAvoidtouch screen accessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The touch screen locking is applied selectively only during specific door operation states (when door is opened during infusion), rather than being permanently locked. This localized application maintains reliability when needed while preserving accessibility during normal operation

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The touch screen alternates between locked and unlocked states periodically based on door operation cycles. The screen locks when the door opens and unlocks when the door closes, creating a rhythmic pattern of accessibility that matches the operational workflow

Inventive Principle:
Principle #19Periodic action

3Reliability

If parameter reset is required after accidental changes, then reliability is restored, but productivity deteriorates due to time loss

Engineering Contradiction:
Improveparameter accuracyVSAvoidinfusion setup efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The touch screen is locked in advance before the user can accidentally change parameters during door operation. This preliminary protective action prevents the need for subsequent parameter resetting, eliminating time loss and maintaining workflow efficiency

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250001076A1Screen Control Method for Infusion Pump, Apparatus, Infusion Pump, Device and Medium
Publication Date: 2025.01.02 MEDCAPTAIN MEDICAL TECH
  • US20250001076A1 patent drawing
  • US20250001076A1 patent drawing
  • US20250001076A1 patent drawing

AI summary

This invention provides a screen-based method for controlling an infusion pump, an apparatus, an infusion pump, a device, and a medium. The method includes: generating an information display interface according to an operating state of the infusion pump; displaying the information display interface by a touch screen of the infusion pump; and stopping processing of a manipulation command received by the touch screen in response to an opening operation of the pump door of the infusion pump. The invention can solve the problem in the prior art that it is easy to mistakenly touch the display content on the touch screen of the infusion pump, which leads to low efficiency of the infusion operation and affects the effect of the infusion. The invention thereby improves the safety and reliability of the infusion pump.