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Design, Fabrication, and Efficacy of Customized Medical Masks
Design, Fabrication, and Efficacy of Customized Medical Masks
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211151338
- ISBN
- 9798382610801
- DDC
- 621
- 서명/저자
- Design, Fabrication, and Efficacy of Customized Medical Masks
- 발행사항
- [Sl] : Carnegie Mellon University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 194 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-11, Section: B.
- 주기사항
- Advisor: Shimada, Kenji.
- 학위논문주기
- Thesis (Ph.D.)--Carnegie Mellon University, 2024.
- 초록/해제
- 요약Masks are a widely used and important device worn on the face to provide breathing support such as oxygen or noninvasive ventilation (NIV), or to protect the wearer from particulates. Two key features that define masks are that they are worn for long periods of time, and they require a good fit to function properly; so, to be a successful mask, it must be comfortable and well-fitting. Medical masks typically come in generic sizes such as small, medium, and large, making it difficult for many people to find a mask that fulfills these key requirements. This thesis focuses on two masks: continuous positive airway pressure (CPAP) masks and N95 respirators. We propose that medical mask efficacy, fit, and comfort can be improved by creating custom-fit masks informed by the patient's individual facial features and properties.In this thesis, we propose a mask customization technique based on the subject's facial anatomy. We have created a method to design and fabricate custom-fit CPAP masks based on the subject's facial contour. We use photogrammetry to collect the patient's facial contour, then use our own software to generate a 3D file of a silicone interface layer based on the patient's 3D face shape. We can then use finite element analysis (FEA) to test the mask and potential leakage areas so we can make changes before fabrication. N95 respirators are typically single-use devices and are better suited to a rapid customization technique. We have developed a 3D printable mask that, when paired with N95 filter material can serve as an N95 respirator replacement. By exploiting the low melting temperature of PLA, these masks can be molded to the user's face with hot water, providing a good fit without having to try on several masks.We have tested our mask-making methodology based on facial contour on CPAP masks made in a five-person healthy subject study, where results suggest that the Custom-Fit mask is more comfortable than the off-the-shelf version. The 3D-printed moldable N95 masks have been quantitatively fit tested on 13 subjects with 77% of subjects passing the fit test with the molded mask. We have shown that using the proposed mask customization methodology produces comfortable and well-fitting CPAP and N95 masks. Finally, we tested the custom-fit CPAP mask on a clinical case study patient. This study provided many insights on how the mask performs on someone who uses CPAP. Applying these methods to CPAP and N95 respirators is only the beginning of what is possible, these methods could be applied to other masks and other custom devices.
- 일반주제명
- Mechanical engineering
- 일반주제명
- Biomedical engineering
- 일반주제명
- Medical imaging
- 일반주제명
- Biomechanics
- 키워드
- Medical devices
- 키워드
- Product design
- 키워드
- Fabrication
- 기타저자
- Carnegie Mellon University Mechanical Engineering
- 기본자료저록
- Dissertations Abstracts International. 85-11B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211151338
■006m o d
■007cr#unu||||||||
■020 ▼a9798382610801
■035 ▼a(MiAaPQ)AAI31242023
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a621
■1001 ▼aMartelly, Erica M.▼0(orcid)0000-0002-9020-0078
■24510▼aDesign, Fabrication, and Efficacy of Customized Medical Masks
■260 ▼a[Sl]▼bCarnegie Mellon University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a194 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-11, Section: B.
■500 ▼aAdvisor: Shimada, Kenji.
■5021 ▼aThesis (Ph.D.)--Carnegie Mellon University, 2024.
■520 ▼aMasks are a widely used and important device worn on the face to provide breathing support such as oxygen or noninvasive ventilation (NIV), or to protect the wearer from particulates. Two key features that define masks are that they are worn for long periods of time, and they require a good fit to function properly; so, to be a successful mask, it must be comfortable and well-fitting. Medical masks typically come in generic sizes such as small, medium, and large, making it difficult for many people to find a mask that fulfills these key requirements. This thesis focuses on two masks: continuous positive airway pressure (CPAP) masks and N95 respirators. We propose that medical mask efficacy, fit, and comfort can be improved by creating custom-fit masks informed by the patient's individual facial features and properties.In this thesis, we propose a mask customization technique based on the subject's facial anatomy. We have created a method to design and fabricate custom-fit CPAP masks based on the subject's facial contour. We use photogrammetry to collect the patient's facial contour, then use our own software to generate a 3D file of a silicone interface layer based on the patient's 3D face shape. We can then use finite element analysis (FEA) to test the mask and potential leakage areas so we can make changes before fabrication. N95 respirators are typically single-use devices and are better suited to a rapid customization technique. We have developed a 3D printable mask that, when paired with N95 filter material can serve as an N95 respirator replacement. By exploiting the low melting temperature of PLA, these masks can be molded to the user's face with hot water, providing a good fit without having to try on several masks.We have tested our mask-making methodology based on facial contour on CPAP masks made in a five-person healthy subject study, where results suggest that the Custom-Fit mask is more comfortable than the off-the-shelf version. The 3D-printed moldable N95 masks have been quantitatively fit tested on 13 subjects with 77% of subjects passing the fit test with the molded mask. We have shown that using the proposed mask customization methodology produces comfortable and well-fitting CPAP and N95 masks. Finally, we tested the custom-fit CPAP mask on a clinical case study patient. This study provided many insights on how the mask performs on someone who uses CPAP. Applying these methods to CPAP and N95 respirators is only the beginning of what is possible, these methods could be applied to other masks and other custom devices.
■590 ▼aSchool code: 0041.
■650 4▼aMechanical engineering
■650 4▼aBiomedical engineering
■650 4▼aMedical imaging
■650 4▼aBiomechanics
■653 ▼aContinuous positive airway pressure
■653 ▼aFinite element analysis
■653 ▼aMedical devices
■653 ▼aProduct design
■653 ▼aFabrication
■690 ▼a0548
■690 ▼a0541
■690 ▼a0574
■690 ▼a0648
■71020▼aCarnegie Mellon University▼bMechanical Engineering.
■7730 ▼tDissertations Abstracts International▼g85-11B.
■790 ▼a0041
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17161309▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
