3D Printed Medical Isolation Goggles for Personalized Fit

Solution Overview

Problem

Existing medical isolation goggles produced by injection molding lack personalized fit, allowing pollutants to enter and causing discomfort due to poor facial adaptation.

Innovation Solution

A method involving 3D scanning and printing to create personalized medical isolation goggles, using 3D scanning data to design and print goggles that fit individual facial features, employing thermoplastic polyurethane and stereolithography technology for additive manufacturing, and incorporating features like air holes and filter cotton for enhanced breathability and protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If injection molding process is used to manufacture goggles frames, then manufacturing efficiency is improved, but personalized fit is lost and pollutants can enter easily

Engineering Contradiction:

Improvemanufacturing efficiencyVSAvoidprotection effectiveness

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent changes the manufacturing approach from mass production with fixed parameters (injection molding) to customized production with variable parameters (3D printing). Each goggle frame is manufactured with specific dimensional parameters tailored to individual user facial measurements, enabling both efficient production and personalized fit that prevents pollutant entry.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent performs preliminary 3D scanning and facial measurement data collection before manufacturing. This preliminary action captures the user's unique facial geometry, which is then used to generate customized 3D printing models that ensure proper fit and protection effectiveness before the actual manufacturing process begins.

Inventive Principle:

Principle #10Preliminary action

2Ease of manufacture

If standardized goggles are produced, then manufacturing cost is reduced, but comfort and protection are compromised due to poor facial adaptation

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidwearing comfort

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The system enables self-service customization where users provide their own facial measurement data (through 3D scanning or photographing), and the system automatically generates personalized goggle frame models. This eliminates the need for manual customization processes while ensuring each user receives a comfortably fitted product tailored to their unique facial structure.

Inventive Principle:

Principle #25Self-service

3Manufacturing precision

If 3D printing is used for personalized goggles, then personalized fit is achieved, but production time increases

Engineering Contradiction:

Improvepersonalized fit precisionVSAvoidproduction cycle time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent performs preliminary 3D scanning and facial measurement data collection before manufacturing. This preliminary action captures the user's unique facial geometry, which is then used to generate customized 3D printing models that ensure proper fit and protection effectiveness before the actual manufacturing process begins.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent changes the manufacturing approach from mass production with fixed parameters (injection molding) to customized production with variable parameters (3D printing). Each goggle frame is manufactured with specific dimensional parameters tailored to individual user facial measurements, enabling both efficient production and personalized fit that prevents pollutant entry.

Inventive Principle:

Principle #35Parameter changes

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

The method results in goggles that provide a high level of personal fit and breathability, reducing facial compression and improving comfort for users, enabling rapid production and addressing the shortage of medical protective equipment.

Implementation Method 1

performing 3D scanning on a basic tester to obtain point cloud data from front and side faces of the basic tester's face

Methodology Applied

Scientific EffectLight reflection: Reflection

Implementation Method 2

3D printing is performed by a thermoplastic polyurethane (TPU) material and a stereolithography appearance (SLA) technology

Methodology Applied

Scientific EffectPhotopolymerisation: Photopolymerisation

Data Source

PatentUS11534341B2Method for preparing personalized medical isolation goggles by three-dimensional (3D) printing

Publication Date: 2022.12.27 DONGGUAN SONGHU TECH

AI summary

A method for preparing a pair of personalized three-dimensional (3D) printing medical isolation goggles includes the steps of S1: establishing a medical isolation goggles matrix; S2: acquiring the facial data of a user; S3: establishing a personalized medical isolation goggles model; S4: performing additive manufacturing, wherein a pair of medical isolation goggles is provided with high personalized fitness and high breathability for patients with eye diseases such as conjunctivitis, virus-susceptible patients, front-line clinical medical workers and related workers, and the compression damage to the face caused by the wearing of the medical isolation goggles for a long time is reduced in terms of fitness and comfort, where the medical isolation goggles are manufactured in a mode of additive manufacturing, small-batch rapid production can be performed after data merging, and a large number of processes and costs are reduced in the production cycle.