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

Patent metadata

Field	Value
Publication number	US-11534341-B2
Application number	US-202017039174-A
Country	US
Kind code	B2
Filing date	Sep 30, 2020
Priority date	Feb 26, 2020
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

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.

First claim

What is claimed is:

1. A method for preparing personalized medical isolation goggles by three-dimensional (3D) printing, comprising the following steps:
S1: establishing a medical isolation goggles matrix model by performing 3D scanning on a basic tester to obtain point cloud data from front and side faces of the face of the basic tester, and performing 3D design on the obtained data to obtain the medical isolation goggles matrix model;
S2: acquiring facial data of a user destined to wear the personalized medical isolation goggles by photographing the user or performing 3D scanning on the user to obtain point cloud data from front and side faces of the user;
S3: establishing a personalized medical isolation goggles model by importing the point cloud data of the medical isolation goggles matrix model in said S1 and the point cloud data of the user in said S2 into 3D software for Boolean operations, and forming, by merging and cutting, a personalized medical isolation goggles model conforming to the face of the user; and
S4: performing additive manufacturing by importing the personalized medical isolation goggles model into slice software matched with a 3D printer to perform 3D model slicing, generating a print format file which can be identified by the 3D printer, and inputting the print format file into the 3D printer to print the personalized medical isolation goggles model to obtain a pair of personalized medical isolation goggles.

2. The method for preparing personalized medical isolation goggles by 3D printing according to claim 1 , wherein during 3D scanning, the basic tester sits down naturally with eyes closed, high-precision 3D data of the face of the basic tester is quickly acquired via a hand-held 3D scanner, and the point cloud data of the face of the basic tester is converted into triangular mesh surface data in software of the 3D scanner.

3. The method for preparing personalized medical isolation goggles by 3D printing according to claim 1 , wherein the 3D software is Solid Works or Autodesk Maya.

4. The method for preparing personalized medical isolation goggles by 3D printing according to claim 1 , wherein Boolean operations are performed in accordance with the nose, brow ridge and forehead in the scanning data of the user and the medical isolation goggles matrix model.

5. The method for preparing personalized medical isolation goggles by 3D printing according to claim 1 , wherein the personalized medical isolation goggles model is saved in “Standard Triangle Language” or “Standard Tessellation Language” (STL) format.

6. The method for preparing personalized medical isolation goggles by 3D printing according to claim 1 , wherein 3D printing is performed by a thermoplastic polyurethane (TPU) material and a stereolithography appearance (SLA) technology.

7. The method for preparing personalized medical isolation goggles by 3D printing according to claim 1 , further comprising:
S5 post-processing assembly specifically as follows: the pair of personalized medical isolation goggles is cleaned and ground to remove unnecessary supports and post-cured and sterilized, a layer of sponge pad is stuck to a curved nose bracket of the pair of personalized medical isolation goggles, medical isolation goggles laces penetrate into medical isolation goggles lace openings at rear ends of both sides of the pair of personalized medical isolation goggles, high transmittance lenses are embedded in a goggles frame at a front end of the pair of personalized medical isolation goggles, both sides of a medical isolation goggles frame body of the pair of personalized medical isolation goggles are provided with several air holes, filter cotton is placed in a filter cotton placement bracket at the periphery of the air holes, and finally the pair of finished personalized medical isolation goggles is obtained.

8. The method for preparing personalized medical isolation goggles by 3D printing according to claim 7 , wherein the medical isolation goggles lace is an elastic band, and a buckle is arranged at a joint of the elastic band.

Assignees

• Univ Dongguan Technology
• Dongguan Songhu Tech Co Ltd
• Institute Of Science & Technology Innovation Dongguan Univ Of Technology
• Dongguan Keheng Hand Model Co Ltd

Inventors

• Li Nan
• Zhou Zirong
• Chen Shenggui
• Wen Binghua

Classifications

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title

• A61F2240/004

  Using a positive or negative model, e.g. moulds · CPC title

• B29K2075/00

  Use of {PU, i.e.} polyureas or polyurethanes {or derivatives thereof}, as moulding material · CPC title

• A61F9/026

  Paddings; Cushions; Fittings to the face · CPC title