Browsing by Author "Maitland, Duncan J."

Now showing items 1-20 of 28

    • Antimicrobial shape memory polymers 
      Monroe, Mary Beth; Maitland, Duncan J.; Weems, Andrew; Keller, Brandis; Fletcher, Grace (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2021-08-17)
      An embodiment includes a system comprising a thermoset polyurethane shape memory polymer (SMP) foam that includes at least one antimicrobial agent. The antimicrobial agent may include at least one phenolic acid that is a ...
    • Carbon Fillers for Actuation of Electroactive Thermoset Shape Memory Polyurethane Composites by Resistive Heating 
      Yu, Ya-Jen (2014-05-01)
      The shape memory polymer (SMP) is one type of smart material with shape memory effect. SMP’s recovery can be actuated by external energy, such as heat. However, traditional direct heating limits potential applications of ...
    • Characterization of Shape Memory Polymer Foam: Biocompatibility, Visualization and Hemodynamic Interactions 
      Rodriguez, Jennifer Nicole (2014-05-09)
      Cerebral aneurysms are unstable localized dilations of an artery wall located in the vasculature of the brain that are susceptible to rupture. Current treatments of aneurysms, both surgical and endovascular, involve isolation ...
    • Clot Kinetics in the Progression of Cerebral Vasospasm 
      Hackney, Erin Kathleen (2011-02-22)
      Cerebral vasospasm following subarachnoid hemorrhage has high morbidity and mortality. Mathematical modeling of the progression of the condition provides insight to improve clinical treatment of patients post subarachnoid ...
    • Development of Multilayer Vascular Grafts Based on Collagen-Mimetic Hydrogels 
      Browning, Mary Beth (2013-07-29)
      Current synthetic vascular grafts have high failure rates in small-diameter (<6 mm) applications due to inadequate cell-material interactions and poor matching of arterial biomechanical properties. To address this, we have ...
    • Device and method for treatment of openings in vascular and septal walls 
      Singhal, Pooja; Wilson, Thomas S.; Cosgriff-Hernandez, Elizabeth; Maitland, Duncan J. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2017-06-06)
      A device, system and method for treatment of an opening in vascular and/or septal walls including patent foramen ovale. The device has wings/stops on either end, an axis core covered in a shape memory foam and is deliverable ...
    • The Effect of Moisture Absorption on the Physical Properties of Polyurethane Shape Memory Polymer Foams 
      Yu, Ya-Jen (2012-07-16)
      The effect of moisture absorption on the glass transition temperature (Tg) and stress/strain behavior of network polyurethane shape memory polymer (SMP) foams has been investigated. With our ultimate goal of engineering ...
    • Expandable implant and implant system 
      Wilson, Thomas S.; Small, Ward IV; Benett, William J.; Ortega, Jason M.; Maitland, Duncan J.; Hartman, Jonathan (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2018-07-03)
      An embodiment of the invention includes an expandable implant to endovascularly embolize an anatomical void or malformation, such as an aneurysm. An embodiment is comprised of a chain or linked sequence of expandable polymer ...
    • Expandable implant and implant system 
      Wilson, Thomas S.; Small, Ward IV; Benett, William J.; Ortega, Jason M.; Maitland, Duncan J.; Hartman, Jonathan (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2021-01-26)
      An embodiment of the invention includes an expandable implant to endovascularly embolize an anatomical void or malformation, such as an aneurysm. An embodiment is comprised of a chain or linked sequence of expandable polymer ...
    • Flow and Temperature Fields Generated by a Thermally Activated Interventional Vascular Device 
      McCurrin, Casey (2012-10-19)
      Concern for the nonphysiologic energy required to actuate medical devices utilizing “smart material” properties of shape memory polymer (SMP) compels a rigorous investigation into the flow and temperature fields surrounding ...
    • Hemorrhage management system 
      Maitland, Duncan J.; Landsman, Todd Lawrence; Touchet, Tyler Joseph; Cosgriff-Hernandez, Elizabeth L.; Wilson, Thomas S. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2019-04-23)
      An embodiment includes a wound dressing comprising: a shape memory polymer (SMP) foam, including open cells, having first and second states; and a hydrogel (HG) included within the cells; wherein (a) in a first position a ...
    • Hemorrhage management system 
      Maitland, Duncan J.; Landsman, Todd Lawrence; Touchet, Tyler Joseph; Cosgriff-Hernandez, Elizabeth L.; Wilson, Thomas S. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2021-06-01)
      An embodiment includes a wound dressing comprising: a shape memory polymer (SMP) foam, including open cells, having first and second states; and a hydrogel (HG) included within the cells; wherein (a) in a first position a ...
    • Mechanical characterization, modeling, and examination of a muscular intracranial and elastic extracranial artery with an emphasis on microstructure, residual stress, and smooth muscle cell activation 
      Wagner, Hallie (2012-07-16)
      Cerebrovascular disease continues to be responsible for significant morbidity and mortality. There is a pressing need to better understand the biomechanics of both intracranial arteries and the extracranial arteries that ...
    • Mechanical reticulation of polymeric-based closed cell foams 
      Rodriguez, Jennifer N.; Maitland, Duncan J.; Wilson, Thomas S. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2020-05-12)
      Polymeric based closed cell foams, such as shape memory polymer foams, contain bubbles. Making these bubbles continuous is called reticulation. Disclosed are embodiments of a device and method to controllably reticulate ...
    • Medical devices coated with shape memory polymer foams 
      Muschalek, Rachael; Hearon, Keith; Nash, Landon D.; Maitland, Duncan J. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2020-02-18)
      An embodiment includes a system comprising: a substrate of a medical device; an un-foamed polyurethane coating directly contacting the substrate and fixedly attached to the substrate; a thermoset polyurethane shape memory ...
    • Medical Devices Coated With Shape Memory Polymer Foams 
      Muschalek, Rachael; Hearon, Keith; Nash, Landon D.; Maitland, Duncan J. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 6/28/2022)
      An embodiment includes a system comprising: a substrate of a medical device; an un-foamed polyurethane coating directly contacting the substrate and fixedly attached to the substrate; a thermoset polyurethane shape memory ...
    • Processable, tunable thio-ene crosslinked polyurethane shape memory polymers 
      Hearon, Keith; Nash, Landon D.; Wilson, Thomas; Maitland, Duncan J.; Wierzbicki, Mark A. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2020-08-04)
      An embodiment includes a platform shape memory polymer system. Such an embodiment exhibits a blend of tunable, high performance mechanical attributes in combination with advanced processing capabilities and good biocompatibility. ...
    • Shape memory polymer nonocomposites and uses thereof 
      Hasan, Sayyeda Marziya; Rodriguez, Jennifer Nicole; Singhal, Pooja; Wilson, Thomas Stephen; Maitland, Duncan J. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2020-08-25)
      The invention relates to radiopaque shape memory foam compositions and methods of using the compositions. In certain embodiments, the compositions are used in neurovascular occlusion applications.
    • Shape memory polymer vessel occlusion device 
      Maitland, Duncan J.; Landsman, Todd L.; Rodriguez, Jennifer N.; Boyle, Anthony J.; Glowczwski, Alan C.; Wierzbicki, Mark A. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2020-09-29)
      An embodiment includes a system comprising: an outer conduit; a shape memory polymer (SMP) foam; a metal backbone including: (a)(i) a first portion that extends from the SMP foam proximal end to the SMP foam distal end and ...
    • Shape Memory Polymer Vessel Occlusion Device 
      Maitland, Duncan J.; Landsman, Todd L.; Rodriguez, Jennifer N.; Boyle, Anthony J.; Glowczski, Alan C.; Wierzbicki, Mark A. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 6/28/2022)
      An embodiment includes a system comprising: an outer conduit; a shape memory polymer (SMP) foam; a metal backbone including: (a)(i) a first portion that extends from the SMP foam proximal end to the SMP foam distal end and ...