Surgical Face Guard with Polarization Shield for 3D Viewing

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Solution Overview

Problem

Medical workers wearing face shields over polarized glasses experience shifted polarization, preventing them from recognizing normal three-dimensional images during medical procedures.

Innovation Solution

A surgical face guard with a frame and polarization shield designed to be worn on the head, featuring distinct fitting holes for correct attachment and polarization properties to maintain clear three-dimensional image viewing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a face shield is worn on top of polarized glasses to protect the face, then protection from blood and body fluids is improved, but polarization is shifted making three-dimensional viewing impossible

Engineering Contradiction:
Improveprotection from blood and body fluidsVSAvoidthree-dimensional viewing capability
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent combines the protective face shield function and the polarized viewing function into a single integrated device. The face shield incorporates polarized filtering layers that maintain the polarization properties needed for three-dimensional viewing while providing protection from blood and body fluids. This eliminates the need to wear separate polarized glasses under the face shield, preventing polarization shift issues.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The face shield is designed to serve multiple functions simultaneously: it provides physical protection from bodily fluids while also serving as a polarized optical filter for three-dimensional image viewing. The shield integrates both protective and optical filtering functions into one universal device that can be worn during surgical procedures.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Illumination intensity

If a transparent face shield is used to maintain field of view, then visibility is preserved, but polarization shift occurs preventing normal three-dimensional image recognition

Engineering Contradiction:
Improvevisibility and field of viewVSAvoidthree-dimensional image recognition
Core Design Contradiction:
Illumination intensityVSReliability

Solution Approach 1:

The patent merges the transparent protective shield with integrated polarized filtering layers. The shield maintains transparency for visibility while incorporating polarization layers that correctly filter light for three-dimensional viewing, eliminating the polarization shift problem that occurs with conventional transparent face shields.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The face shield utilizes composite material structure combining transparent protective material with polarized filtering layers. This composite construction allows the shield to simultaneously provide transparency for visibility and polarization filtering for accurate three-dimensional image recognition without the polarization shift issues of single-material shields.

Inventive Principle:
Principle #40Composite materials

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables safe and effective use of three-dimensional images during medical treatments by preventing polarization shift and providing protection from bodily fluids, while allowing correct viewing of three-dimensional images.

Implementation Method 1

a polarization shield configured to cover at least an in-front-of-eyes part and a part of a side-of-face surface of the medical worker, and have a predetermined polarization property with respect to a three-dimensional image

Methodology Applied
Scientific EffectPolarization: Polarisation

Data Source

PatentUS10702345B2Surgical face guard, surgical frame, surgical polarization shield, and surgery system
Publication Date: 2020.07.07 SONY GROUP CORP
  • US10702345B2 patent drawing
  • US10702345B2 patent drawing
  • US10702345B2 patent drawing

AI summary

[Object] To provide a novel and improved surgical face guard with which a three-dimensional image can be used safely during medical treatment.[Solution] Provided is a surgical face guard, including a frame configured to be worn on a head of a medical worker, and a polarization shield configured to cover at least an in-front-of-eyes part and a part of a side-of-face surface of the medical worker, and have a predetermined polarization property with respect to a three-dimensional image.