Software Cursor Control for Hygienic Medical Device Interfaces
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Solution Overview
Problem
Existing medical device user interfaces, particularly in healthcare settings, face challenges in integrating input devices like keyboards and mice with displays due to hygiene concerns and the need for cost-effective, efficient cursor control solutions that can be used across various medical settings from laboratories to bedside environments.
Innovation Solution
A software-based cursor control system that includes a main image subsystem, a cursor subsystem, a monitor, and graphics logic, using video memory to store and modify bit patterns representing graphics and cursor graphics, allowing for efficient integration and operation of user interfaces in medical devices, including touchpad-based navigation and gesture recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If hardware-based cursor control circuitry is used, then cursor control accuracy is improved, but device cost increases
Solution Approach 1:
The patent replaces hardware-based cursor control circuitry with a software-based cursor control system. The software cursor control subsystem uses general-purpose processors and video memory to achieve cursor control functionality, eliminating the need for specialized hardware circuits while maintaining cursor control accuracy.
Solution Approach 2:
The patent uses software routines to replicate the functionality of hardware cursor control circuitry. The cursor control subsystem uses software-based bit pattern manipulation in video memory to achieve the same cursor control effects as hardware circuits would provide, but at lower cost.
2Object-affected harmful factors
If touchpads and touch screens are used instead of keyboards and mice, then hygiene is improved, but ease of operation decreases
Solution Approach 1:
The patent implements a dynamic cursor control system that responds to touchpad gestures with smooth, continuous cursor movement. The software-based system provides adaptive cursor behavior that can be tuned for different user preferences and medical procedures, making the interface as easy to operate as traditional keyboards and mice while maintaining hygiene benefits.
Solution Approach 2:
The patent incorporates feedback mechanisms in the software cursor control system that provide real-time visual response to user input. The system monitors and responds to touchpad gestures with appropriate cursor movement and selection feedback, making the hygienic interface feel as responsive and intuitive as traditional input devices.
3Device complexity
If software-based cursor control is used, then device complexity is reduced, but speed of cursor response decreases
Solution Approach 1:
The patent implements preliminary action by pre-allocating video memory for cursor bit patterns and pre-loading cursor control routines into memory. The software cursor control system is initialized with all necessary data structures and bit patterns before operation, enabling rapid cursor response without the need for complex hardware circuitry.
Solution Approach 2:
The patent optimizes software cursor control performance by adjusting parameters such as video memory access patterns, bit pattern storage formats, and processor allocation. These parameter changes enable the software-based system to achieve cursor response speeds comparable to hardware-based systems while maintaining reduced device complexity.
Data Source
AI summary
A networked dialysis system includes a dialysis machine, a user interface, and a device that is located remotely from the dialysis machine and that exchanges information with the dialysis machine via a networked communications link. A digital data processor, which is coupled to the dialysis machine and to the remote device, facilitates execution of services on one or more remote digital data processing systems. The digital data processor is coupled to the remote device via the networked communications link and is coupled to the dialysis machine via a second communications link.