Force sense notification device and force sense notification method
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Solution Overview
Problem
In surgical environments with noise from medical devices, there is a risk of false recognition of auditory information derived from force feedback, which can distract the surgeon and reduce concentration.
Innovation Solution
A force sense notification device and method using a control device to generate notification sounds based on the magnitude of the acting force, employing distinct first and second notification sounds with varying pitches to distinguish from other environmental noises.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If auditory notification is used to convey force feedback, then information transmission is improved, but false recognition risk increases due to environmental noise
Solution Approach 1:
The notification sound is segmented into multiple frequency components (first frequency component around 1-2 kHz, second frequency component around 3-4 kHz) that are consonant with each other. This segmentation creates a distinctive auditory pattern that can be easily differentiated from random environmental noise, thereby improving recognition accuracy while maintaining effective force feedback information transmission
Solution Approach 2:
The patent applies the principle of color changes by modifying the spectral characteristics of the notification sound. Specifically, it uses sounds with specific frequency compositions (first and second frequency components) that are consonant with each other, creating a unique auditory 'color' or signature that distinguishes the force feedback notification from other environmental sounds in the surgical setting
2Loss of information
If force feedback notification is provided, then surgical awareness is improved, but surgeon concentration may be disrupted by distracting sounds
Solution Approach 1:
By using consonant frequency components that create a harmonious and predictable auditory pattern, the notification sound becomes less disruptive and more easily integrated into the surgeon's auditory environment. This reduces the distracting effect while maintaining effective communication of force feedback information
Solution Approach 2:
The system provides force feedback notification that gives the surgeon awareness of forces acting on surgical instruments without creating disruptive interruptions. The consonant frequency composition allows the feedback to be perceived as informative rather than distracting, maintaining surgical flow and concentration
Data Source
AI summary
A force sense notification device includes a speaker and a control device that receives a measurement signal indicating a magnitude of a force exerted on a surgical instrument, generates sound information based on the magnitude of the force, and outputs the sound information through the speaker.