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A Mortise and Tenon Framework Composed of Costal Cartilage and Expanded Polytetrafluoroethylene in Rhinoplasty for Asians: Application Ⅱ of Dai Exogenous Extension Stent Concept.
J Craniofac Surg
November 2024
Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China.
Background: The septum is often underdeveloped in East Asian populations, and traditional endogenous extension stents may not adequately fulfill the requirements for rhinoplasty. Herein, we present an innovative exogenous extension framework featuring a mortise and tenon structure specifically designed for East Asians.
Methods: This framework comprises a mushroom-shaped rib cartilage component and a lancet-shaped expanded polytetrafluoroethylene (ePTFE) element, which are interconnected through a mortise and tenon design.
Long-Term Outcomes With Expanded Polytetrafluoroethylene Valved Conduits in Pediatric Patients.
Ann Thorac Surg Short Rep
December 2024
Institute for Integrated Life Skills, LLC, Bermuda Run, North Carolina.
Background: The expanded polytetrafluoroethylene (ePTFE) valved conduit (VC) has been reported for pulmonary valve replacement (PVR). The purpose of this study was to review long-term outcomes of our trileaflet ePTFE VC.
Methods: This multicenter study was performed with institutional review board approval from each institution.
Fabrication of Polytetrafluoroethylene-Reinforced Fluorocarbon Composite Coatings and Tribological Properties Under Multi-Environment Working Conditions.
Polymers (Basel)
December 2024
School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
Currently, few studies have been conducted on the use of fluorocarbon resin (FEVE) and polytetrafluoroethylene (PTFE) as adhesive substrates and lubricating and anti-corrosion fillers, respectively, for the fabrication of PTFE-reinforced fluorocarbon composite coatings. In this paper, the tribological properties of polytetrafluoroethylene-reinforced fluorocarbon composite coatings were investigated through orthogonal tests under various operating conditions. The optimal configuration for coating preparation under dry friction and aqueous lubrication was thus obtained: the optimal filler particle size, mass ratio of FEVE to PTFE, spraying pressure, and curing agent content were 50 μm, 3:4.
View Article and Find Full Text PDFCavo-Atrial Inferior Vena Cava (IVC) Restoration With Polytetrafluoroethylene Graft: Overcoming Lethal Injuries.
Cureus
November 2024
Hepato-Pancreato-Biliary Surgery and Liver Transplantation, London Bridge Hospital, London, GBR.
Injuries to the inferior vena cava (IVC) carry high risks and mortality rates. We present a case of suprahepatic IVC injury that was successfully treated with polytetrafluoroethylene (PTFE) graft insertion without cardiopulmonary bypass. A 46-year-old woman was transferred to our trauma centre after a high-speed motor vehicle collision.
View Article and Find Full Text PDFAbsorption photometry of patterned deposits on IMPROVE PTFE filters.
J Air Waste Manag Assoc
December 2024
Air Quality Research Center, University of California, Davis, California, USA.
The IMPROVE program (Interagency Monitoring of PROtected Visual Environments) tracks long-term trends in the composition and optics of regional haze aerosols in the United States. The absorptance of red (633-nm) light is monitored by filter photometry of 24 h-integrated samples of fine particulate matter (PM 2.5).
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