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公开(公告)号：US11141164B2
公开(公告)日：2021-10-12
申请号：US15599133
申请日：2017-05-18
发明人： Jason M. Ortega , William J. Benett , Ward Small , Thomas S. Wilson , Duncan J. Maitland , Jonathan Hartman
摘要： A system for treating an aneurysm in a blood vessel or vein, wherein the aneurysm has a dome, an interior, and a neck. The system includes a shape memory polymer foam in the interior of the aneurysm between the dome and the neck. The shape memory polymer foam has pores that include a first multiplicity of pores having a first pore size and a second multiplicity of pores having a second pore size. The second pore size is larger than said first pore size. The first multiplicity of pores are located in the neck of the aneurysm. The second multiplicity of pores are located in the dome of the aneurysm.
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公开(公告)号：US20170252045A1
公开(公告)日：2017-09-07
申请号：US15599133
申请日：2017-05-18
发明人： Jason M. Ortega , William J. Benett , Ward Small , Thomas S. Wilson , Duncan J. Maitland , Jonathan Hartman
IPC分类号： A61B17/12
CPC分类号： A61B17/12113 , A61B17/12022 , A61B17/12031 , A61B17/12181 , A61B2017/0061 , A61B2017/00871 , A61B2017/12077
摘要： A system for treating an aneurysm in a blood vessel or vein, wherein the aneurysm has a dome, an interior, and a neck. The system includes a shape memory polymer foam in the interior of the aneurysm between the dome and the neck. The shape memory polymer foam has pores that include a first multiplicity of pores having a first pore size and a second multiplicity of pores having a second pore size. The second pore size is larger than said first pore size. The first multiplicity of pores are located in the neck of the aneurysm. The second multiplicity of pores are located in the dome of the aneurysm.
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公开(公告)号：US09662119B2
公开(公告)日：2017-05-30
申请号：US13798740
申请日：2013-03-13
发明人： Jason M. Ortega , William J. Benett , Ward Small , Thomas S. Wilson , Duncan J Maitland , Jonathan Hartman
CPC分类号： A61B17/12113 , A61B17/12022 , A61B17/12031 , A61B17/12181 , A61B2017/0061 , A61B2017/00871 , A61B2017/12077
摘要： A system for treating an aneurysm in a blood vessel or vein, wherein the aneurysm has a dome, an interior, and a neck. The system includes a shape memory polymer foam in the interior of the aneurysm between the dome and the neck. The shape memory polymer foam has pores that include a first multiplicity of pores having a first pore size and a second multiplicity of pores having a second pore size. The second pore size is larger than said first pore size. The first multiplicity of pores are located in the neck of the aneurysm. The second multiplicity of pores are located in the dome of the aneurysm.
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公开(公告)号：US20140277057A1
公开(公告)日：2014-09-18
申请号：US13798740
申请日：2013-03-13
发明人： Jason M. Ortega , William J. Benett , Ward Small , Thomas S. Wilson , Duncan J. Maitland , Jonathan Hartman
IPC分类号： A61M29/00
CPC分类号： A61B17/12113 , A61B17/12022 , A61B17/12031 , A61B17/12181 , A61B2017/0061 , A61B2017/00871 , A61B2017/12077
摘要： A system for treating an aneurysm in a blood vessel or vein, wherein the aneurysm has a dome, an interior, and a neck. The system includes a shape memory polymer foam in the interior of the aneurysm between the dome and the neck. The shape memory polymer foam has pores that include a first multiplicity of pores having a first pore size and a second multiplicity of pores having a second pore size. The second pore size is larger than said first pore size. The first multiplicity of pores are located in the neck of the aneurysm. The second multiplicity of pores are located in the dome of the aneurysm.
摘要翻译： 一种用于治疗血管或静脉中的动脉瘤的系统，其中所述动脉瘤具有圆顶，内部和颈部。 该系统包括在圆顶和颈部之间的动脉瘤内部的形状记忆聚合物泡沫。 形状记忆聚合物泡沫具有包括具有第一孔径的第一多个孔和具有第二孔径的第二多个孔的孔。 第二孔径大于所述第一孔径。 第一个多孔的孔位于动脉瘤的颈部。 孔的第二个多重性位于动脉瘤的圆顶。
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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.
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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.
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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.
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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.
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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.
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公开(公告)号：US11958220B2
公开(公告)日：2024-04-16
申请号：US17977345
申请日：2022-10-31
IPC分类号： B29C44/56 , A61L31/06 , A61L31/14 , B29C65/00 , B29K75/00 , B29K105/04 , B32B5/18 , B32B5/32 , C08G18/32 , C08G18/73 , C08G101/00 , C08J9/38 , C08L75/04
CPC分类号： B29C44/5663 , A61L31/06 , A61L31/146 , B29C66/02242 , B32B5/18 , B32B5/32 , C08G18/3228 , C08G18/3278 , C08G18/3284 , C08G18/73 , C08J9/38 , C08L75/04 , A61L2400/16 , B29C2793/0045 , B29K2075/00 , B29K2105/046 , B29K2995/0093 , B32B2266/0278 , B32B2266/08 , B32B2535/00 , C08G2101/00 , C08J2205/052 , C08J2207/10 , C08J2375/04 , C08L2201/12 , C08L2203/14 , A61L31/06 , 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.
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