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PPE Use in Healthcare Settings I: Donning01:22

PPE Use in Healthcare Settings I: Donning

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Donning PPE must be completed before contact with the patient. This process protects from infectious agents. The sequence and action included in each donning are critical, and the steps must be systematic to avoid exposure to pathogens. The institutional policy also needs to be followed while donning PPE. The pre-donning preparations are gathering equipment, inspecting the PPE equipment for tears, holes, or damage, removing jewelry, removing any garments below the elbows, and tying the hair...
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Updated: Mar 26, 2026

Design and Fabrication of an Elastomeric Unit for Soft Modular Robots in Minimally Invasive Surgery
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Morphing Compression Garments for Space Medicine and Extravehicular Activity Using Active Materials.

Bradley T Holschuh1, Dava J Newman

  • 1Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA, USA.

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|January 24, 2016
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This summary is machine-generated.

This study introduces novel shape-changing compression garments using shape memory alloy (SMA) actuators. These "smart" garments offer controllable constriction, addressing challenges in donning and doffing for space and terrestrial applications.

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Area of Science:

  • Materials Science
  • Biomedical Engineering
  • Space Medicine

Background:

  • Traditional compression garments are difficult to don/doff due to their constrictive nature.
  • This challenge is particularly pronounced for garments used in space medicine and extravehicular activity (EVA).

Purpose of the Study:

  • To develop an innovative solution for easier-to-don compression garments.
  • To integrate shape-changing materials into compression garments for on-command constriction.

Main Methods:

  • Developed a parameterized, 2-spring analytic counterpressure model for garment design.
  • Created a methodology for producing shape memory alloy (SMA) coil actuator cartridges.
  • Manufactured and tested five active compression sleeve prototypes, measuring counterpressure before, during, and after voltage application.

Main Results:

  • Achieved controllable active counterpressures up to 34.3 kPa, exceeding EVA life support requirements (29.6 kPa).
  • Prototypes with linear fabrics showed good agreement with the analytic model (4.1%/-10.5% error).
  • Observed pressure non-uniformities due to friction and cartridge structure, with nonlinear fabrics deviating significantly from model predictions.

Conclusions:

  • This research presents the first demonstration of controllable compression technology using active materials in garments.
  • The developed technology offers a novel approach to compression garment design.
  • Potential for easy-to-don compression garments with broad applications in space and on Earth.