-
公开(公告)号：US11945151B2
公开(公告)日：2024-04-02
申请号：US17820144
申请日：2022-08-16
发明人： Jennifer Nicole Rodriguez , Eric B. Duoss , James Lewicki , Christopher Spadaccini , Thomas S. Wilson , Cheng Zhu
IPC分类号： B29C64/00 , B29C64/106 , B29C64/165 , B29C64/209 , B29C64/321 , B29C64/393 , B33Y70/10 , C08K3/04 , C08K7/04 , C08L63/00 , C08L91/00 , B29K63/00 , B29K105/12 , B29K507/04 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y80/00
CPC分类号： B29C64/106 , B29C64/165 , B29C64/209 , B29C64/321 , B29C64/393 , B33Y70/10 , C08K3/046 , C08K7/04 , C08L63/00 , C08L91/00 , B29K2063/00 , B29K2105/124 , B29K2507/04 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y80/00 , C08K2201/011
摘要： An additive manufacturing apparatus includes an additive manufacturing print head and a nozzle that receives a bio-based shape memory polymer material and a bio-based material. The nozzle extrudes the bio-based shape memory polymer material and the bio-based material onto a substrate to form a bio-based shape memory polymer part or product.
-
公开(公告)号：US20240008875A1
公开(公告)日：2024-01-11
申请号：US18469671
申请日：2023-09-19
发明人： Thomas S. Wilson , Ward Small, IV , William J. Benett , Jason M. Ortega , Duncan J. Maitland , Jonathan Hartman
IPC分类号： A61F2/06
CPC分类号： A61F2/06 , A61F2310/00071
摘要： 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 foam elements. Another embodiment includes an elongated length of expandable polymer foam coupled to a backbone. Another embodiment includes a system for endovascular delivery of an expandable implant (e.g., shape memory polymer) to embolize an aneurysm. The system may include a microcatheter, a lumen-reducing collar coupled to the distal tip of the microcatheter, a flexible pushing element detachably coupled to an expandable implant, and a flexible tubular sheath inside of which the compressed implant and pushing element are pre-loaded. Other embodiments are described herein.
-
公开(公告)号：US11725112B2
公开(公告)日：2023-08-15
申请号：US16805494
申请日：2020-02-28
发明人： Du Nguyen , Eric Duoss , Jeremy Lenhardt , Thomas S. Wilson
IPC分类号： C09D11/102 , C09D11/037 , B33Y70/10 , B29C64/118 , B29C64/379 , B33Y40/20 , B33Y70/00 , B33Y10/00 , B29K83/00 , B29C71/00
CPC分类号： C09D11/102 , B29C64/118 , B29C64/379 , B33Y10/00 , B33Y40/20 , B33Y70/00 , B33Y70/10 , C09D11/037 , B29C71/00 , B29C2071/0027 , B29K2083/00 , B29K2439/06
摘要： The silicone-based ink for additive manufacturing includes a siloxane macromer, and a porogen mixture comprising a water-soluble porogen and a surfactant. The product of additive manufacturing with a silicone-based ink includes a three-dimensional printed structure including a plurality of continuous filaments arranged in a predefined pattern and a plurality of inter-filament pores defined by the predefined pattern of the continuous filaments. In addition, each continuous filament of the three-dimensional printed structure includes a silicone matrix having an open cell structure with a plurality of intra-filament pores, and the intra-filament pores form continuous channels through the silicone matrix.
-
公开(公告)号：US11459439B2
公开(公告)日：2022-10-04
申请号：US16984370
申请日：2020-08-04
发明人： Landon D. Nash , Duncan J. Maitland , Nicole Docherty , Thomas S. Wilson , Ward Small, IV , Jason Ortega , Pooja Singhal
IPC分类号： C08J9/36 , B29C59/14 , B32B27/06 , B32B5/18 , A61L31/14 , A61L31/06 , A61L24/00 , A61L24/04 , B05D1/00 , B05D3/14 , B05D7/02 , B29K33/04 , B29C44/56 , B29K69/00 , B29K75/00 , B29K77/00
摘要： An embodiment includes a system comprising: a monolithic shape memory polymer (SMP) foam having first and second states; wherein the SMP foam includes: (a) polyurethane, (b) an inner half portion having inner reticulated cells defined by inner struts, (c) an outer half portion, having outer reticulated cells defined by outer struts, surrounding the inner portion in a plane that provides a cross-section of the SMP foam, (d) hydroxyl groups chemically bound to outer surfaces of both the inner and outer struts. Other embodiments are discussed herein.
-
公开(公告)号：US11453740B2
公开(公告)日：2022-09-27
申请号：US16725327
申请日：2019-12-23
IPC分类号： C08L75/04 , C08G18/32 , B82Y30/00 , C08G18/73 , C08J9/00 , C08G18/08 , C08G18/38 , C08L75/14 , C08L75/12 , A61B17/34 , A61B17/00 , A61B17/29
摘要： New shape memory polymer compositions, methods for synthesizing new shape memory polymers, and apparatus comprising an actuator and a shape memory polymer wherein the shape memory polymer comprises at least a portion of the actuator. A shape memory polymer comprising a polymer composition which physically forms a network structure wherein the polymer composition has shape-memory behavior and can be formed into a permanent primary shape, re-formed into a stable secondary shape, and controllably actuated to recover the permanent primary shape. Polymers have optimal aliphatic network structures due to minimization of dangling chains by using monomers that are symmetrical and that have matching amine and hydroxl groups providing polymers and polymer foams with clarity, tight (narrow temperature range) single transitions, and high shape recovery and recovery force that are especially useful for implanting in the human body.
-
公开(公告)号：US11345067B2
公开(公告)日：2022-05-31
申请号：US16870094
申请日：2020-05-08
IPC分类号： B29C44/56 , C08J9/38 , A61L31/06 , A61L31/14 , C08G18/73 , B32B5/18 , B32B5/32 , C08G18/32 , C08L75/04 , B29K75/00 , C08G101/00 , B29K105/04
摘要： 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 polymer-based closed cell foams by puncturing the membranes of these polymer-based closed cell foams.
-
公开(公告)号：US11020507B2
公开(公告)日：2021-06-01
申请号：US16353793
申请日：2019-03-14
发明人： Duncan J. Maitland , Todd Lawrence Landsman , Tyler Joseph Touchet , Elizabeth L. Cosgriff-Hernandez , Thomas S. Wilson
摘要： 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 composite, including the SMP foam and the HG, is configured to be located proximate a hemorrhagic tissue with the SMP foam in the first state; (b) in a second position the composite is configured to be expanded to the second state against the hemorrhagic tissue when the SMP foam is plasticized at 37° C. depressing a glass transition temperature (Tg) of the SMP foam to below 25° C. Other embodiments are described herein.
-
公开(公告)号：US20200325332A1
公开(公告)日：2020-10-15
申请号：US16870094
申请日：2020-05-08
IPC分类号： C08L75/04
摘要： 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 polymer-based closed cell foams by puncturing the membranes of these polymer-based closed cell foams.
-
公开(公告)号：US20190021838A1
公开(公告)日：2019-01-24
申请号：US16139365
申请日：2018-09-24
发明人： Thomas S. Wilson , Duncan J. Maitland , Ward Small, IV , Patrick R. Buckley , William J. Benett , Jonathan Hartman , David A. Saloner
CPC分类号： A61F2/06 , A61B17/12022 , A61B17/12031 , A61B17/12113 , A61B17/12118 , A61B17/1214 , A61B17/12181 , A61B2017/00867 , A61B2017/00871 , A61B2017/12054 , A61B2017/12072 , A61B2017/12077 , A61F2/82 , A61F2/95 , A61F2002/823
摘要： A stent for treating a physical anomaly. The stent includes a skeletal support structure for expanding in the physical anomaly and a shape memory material coupled to the skeletal support structure.
-
公开(公告)号：US10107270B2
公开(公告)日：2018-10-23
申请号：US15053293
申请日：2016-02-25
发明人： John E. Marion, III , Jane P. Bearinger , Thomas S. Wilson , Ward Small, IV , Duncan J. Maitland
IPC分类号： F03G6/06 , F03G7/06 , A61B17/3207 , F16K99/00 , F16K31/02 , H01H37/32 , H01H37/46 , A61B17/00 , A61B17/22
摘要： A resistively heated shape memory polymer device is operated using resistive heating to heat the shape memory polymer device. The resistively heated shape memory polymer device is made by providing a wire that includes a resistive medium. The wire is coated with a first shape memory polymer. The wire is exposed and electrical leads are attached to the wire. In one embodiment the shape memory polymer device is in the form of a clot destruction device. In another embodiment the shape memory polymer device is in the form of a microvalve. In another embodiment the shape memory polymer device is in the form of a micropump. In yet another embodiment the shape memory polymer device is in the form of a thermostat or relay switch.
-
-
-
-
-
-
-
-
-
搜索结果
96 条记录 (耗时 0.029 秒)
