Voice-Controlled Medical System for Sterile Field Operation

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Solution Overview

Problem

In medical systems, surgeons often cannot directly operate central control panels due to their location in unclean regions, requiring nurses to manage settings and parameters, which disrupts the surgical workflow.

Innovation Solution

A medical system with a control apparatus that discriminates between the presence and absence of an endoscopic image on a display apparatus, switching between operation instruction screens to allow voice-controlled operation of medical devices, enabling surgeons to manage apparatuses without leaving their sterile field.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the operation panel is placed on a rack or trolley in an unclean region, then the control apparatus can be positioned away from the sterile field, but the surgeon cannot directly operate the panel and must rely on nurses

Engineering Contradiction:
Improvesurgeon's ability to operate control panelVSAvoidworkflow complexity requiring nurse intervention
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

A camera positioned in the sterile field captures images of the surgical site and transmits them to a display in the unclean region where the control panel is located. This visual intermediary allows the surgeon to monitor the surgical field while the nurse operates the control panel, maintaining both sterility and operational capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system divides the operating space into sterile and unclean regions, with each region containing specialized equipment. The sterile field contains the surgical site and camera, while the unclean region contains the control panel and display. This spatial segmentation allows each team member to operate within their designated zone without compromising sterility.

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If the surgeon focuses on viewing the endoscopic image, then surgical precision is maintained, but the surgeon cannot simultaneously operate the control panel

Engineering Contradiction:
Improvesurgical precisionVSAvoidcontrol apparatus operation
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The camera acts as a visual intermediary, transmitting real-time images of the surgical field to the display. This allows the surgeon to maintain focus on the endoscopic view while the nurse, viewing the same images on the display, operates the control panel based on the surgeon's verbal instructions.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system replaces direct mechanical interaction between the surgeon and control panel with a visual communication system. The surgeon provides verbal commands, the nurse translates them to panel operations, and the camera-display system provides continuous visual feedback, eliminating the need for the surgeon to physically interact with the control panel.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If nurses operate the operation panel, then the control functions are performed, but the surgical workflow is disrupted

Engineering Contradiction:
Improvesurgical workflow efficiencyVSAvoidtime for nurse intervention
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The camera continuously captures images of the surgical field and provides real-time feedback to both the surgeon and the nurse through the display. This shared visual feedback allows the nurse to anticipate the surgeon's needs and prepare control adjustments in advance, reducing interruptions to the surgical workflow.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The nurse, viewing the surgical field through the camera display, can anticipate the surgeon's upcoming actions and pre-adjust control parameters before they are needed. This preliminary action reduces the need for reactive adjustments during critical surgical moments, improving workflow efficiency.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10130240B2Medical system
Publication Date: 2018.11.20 OLYMPUS CORPORATION(JP)
  • US10130240B2 patent drawing
  • US10130240B2 patent drawing
  • US10130240B2 patent drawing

AI summary

A medical system includes a light source apparatus, an operating field monitor, and a system controller. The system controller includes a discriminating section and a control section configured to perform control to display, when an endoscopic image is displayed on the operating field monitor, a voice operation main screen for instructing operation of a controlled apparatuses and the endoscopic image on the operating field monitor and display, when the endoscopic image is not displayed on the operating field monitor, a voice operation screen for performing a check of operation states of the controlled apparatuses and an operation instruction of the controlled apparatuses on the operating field monitor.