Sterile Microscope Control via Hand Tracking

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Solution Overview

Problem

Current optical observation devices, such as microscopes, require manual adjustment or complex control systems, limiting user control and sterility during medical procedures, and often restrict personnel from making adjustments as desired.

Innovation Solution

An optical observation device with a motorized support structure and control unit that tracks a hand-held device within its field of view, allowing intuitive control of the device's position and properties through motion, without physical interaction, using signals from cameras and motors to adjust the microscope or camera position and settings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual adjustment is used, then device complexity is reduced, but ease of operation deteriorates

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical adjustment with an automated optical tracking system. Cameras capture images of a trackable object, the control unit processes these images to determine position, and motors automatically adjust the observation device position, eliminating the need for manual mechanical manipulation.

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

Solution Approach 2:

The system enables self-adjustment by automatically tracking the trackable object and positioning the observation device accordingly. The control unit continuously monitors the object's position and autonomously adjusts the device without requiring manual intervention, making the system self-regulating.

Inventive Principle:
Principle #25Self-service

2Ease of operation

If remote controls or foot pedals are used, then ease of operation improves, but sterility is compromised

Engineering Contradiction:
Improveease of operationVSAvoidsterility
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a trackable object as an intermediary between the user and the observation device. The user manipulates the trackable object rather than directly controlling the device, and the system translates the object's position into device positioning, enabling contactless control that maintains sterility.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system replaces physical remote controls or foot pedals with an optical tracking mechanism. Cameras detect the position of the trackable object, and the control unit converts this visual information into motor commands, eliminating the need for physical contact controls that could compromise sterility.

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

3Ease of operation

If fully automatic controls are used, then ease of operation improves, but adaptability deteriorates

Engineering Contradiction:
Improveease of operationVSAvoidadaptability
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent implements a dynamic control system that adapts to user needs. The tracking of the trackable object provides continuous, real-time control capability, allowing users to adjust the observation device position and orientation on demand rather than relying on pre-programmed automatic sequences, thus maintaining adaptability while achieving ease of operation.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3664742B1Video based microscope adjustment
Publication Date: 2024.09.04 BRAINLAB AG
  • EP3664742B1 patent drawingFigure 1

AI summary

The present invention relates to anoptical observation device which is controlled in a sterility preserving manner, and to a corresponding controlling program and/or program storage medium.