-
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.
-
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.
-
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。
-
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.
-
公开(公告)号：US20230098681A1
公开(公告)日：2023-03-30
申请号：US17956236
申请日：2022-09-29
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
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：US20230093592A1
公开(公告)日：2023-03-23
申请号：US17977345
申请日：2022-10-31
IPC分类号： B29C44/56 , C08J9/38 , A61L31/06 , A61L31/14 , C08G18/73 , B32B5/18 , B32B5/32 , C08G18/32 , 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：US20210393849A1
公开(公告)日：2021-12-23
申请号：US17306482
申请日：2021-05-03
摘要： Implant devices and structures that reduce inflammation and promote healing of the area of implant. Specifically, the use of shape memory open cell biocompatible polymer foams for implants that assist in and promote healing and especially in filling and sealing aneurisms.
-
公开(公告)号：US10548608B2
公开(公告)日：2020-02-04
申请号：US15579217
申请日：2016-06-07
摘要： An embodiment of the invention is a shape memory polymer (SMP) foam designed to recover its original shape through exposure to a solvent. Thermo-responsive SMPs are polymers designed to maintain a programmed secondary shape until heated above their transition temperature, upon which the polymer recovers its original, or primary, shape. The thermo-responsive SMP foam is programmed to its secondary shape prior to use, typically compression of the foam to a small volume, and remains in this programmed shape until exposed to a selected solvent such as dimethyl sulfoxide or ethyl alcohol. Upon exposure to the solvent, the transition temperature of the SMP foam decreases below the temperature of the environment and the SMP foam actuates to its primary shape. The SMP foam is tailored to actuate upon exposure to specific solvents while minimizing or preventing actuation when exposed to water or other solvents. This selective solvent actuation can be used to increase working time of a SMP foam device, that is, the time allowed for use of a device without undesired actuation, while maintaining functional SMP actuation. Solvent actuated SMP foams can be used in various applications including, but not limited to, treatment of aneurysms and arterio-venous malformations, tissue engineering, and wound healing.
-
9.发明申请公开(公告)号：US20180177508A1
公开(公告)日：2018-06-28
申请号：US15579217
申请日：2016-06-07
CPC分类号： A61B17/12181 , A61B17/12031 , A61B17/12113 , A61B17/1219 , A61B2017/00871 , A61B2017/00938 , A61B2017/00964 , A61L31/06 , A61L31/14 , A61L31/146 , A61L2400/16 , A61L2430/36 , C08L75/04
摘要： An embodiment of the invention is a shape memory polymer (SMP) foam designed to recover its original shape through exposure to a solvent. Thermo-responsive SMPs are polymers designed to maintain a programmed secondary shape until heated above their transition temperature, upon which the polymer recovers its original, or primary, shape. The thermo-responsive SMP foam is programmed to its secondary shape prior to use, typically compression of the foam to a small volume, and remains in this programmed shape until exposed to a selected solvent such as dimethyl sulfoxide or ethyl alcohol. Upon exposure to the solvent, the transition temperature of the SMP foam decreases below the temperature of the environment and the SMP foam actuates to its primary shape. The SMP foam is tailored to actuate upon exposure to specific solvents while minimizing or preventing actuation when exposed to water or other solvents. This selective solvent actuation can be used to increase working time of a SMP foam device, that is, the time allowed for use of a device without undesired actuation, while maintaining functional SMP actuation. Solvent actuated SMP foams can be used in various applications including, but not limited to, treatment of aneurysms and arterio-venous malformations, tissue engineering, and wound healing.
-
10.发明授权公开(公告)号：US09840577B2
公开(公告)日：2017-12-12
申请号：US15269516
申请日：2016-09-19
IPC分类号： C08G18/10 , C08G18/32 , C08G71/04 , C08G18/66 , A61B17/00 , C08G63/00 , C08G63/685 , C08J9/00 , C08G18/08 , C08G18/16 , C08G18/73 , C08G101/00
CPC分类号： C08G18/6622 , A61B17/0057 , A61B2017/00592 , A61B2017/00606 , A61B2017/00623 , C08G18/10 , C08G18/14 , C08G18/165 , C08G18/73 , C08G63/00 , C08G63/6852 , C08G71/04 , C08G2101/005 , C08G2101/0083 , C08G2230/00 , C08G2280/00 , C08J9/00 , C08J2375/06
摘要： Compositions and/or structures of degradable shape memory polymers (SMPs) ranging in form from neat/unfoamed to ultra low density materials of down to 0.005 g/cc density. These materials show controllable degradation rate, actuation temperature and breadth of transitions along with high modulus and excellent shape memory behavior. A method of m ly low density foams (up to 0.005 g/cc) via use of combined chemical and physical aking extreme blowing agents, where the physical blowing agents may be a single compound or mixtures of two or more compounds, and other related methods, including of using multiple co-blowing agents of successively higher boiling points in order to achieve a large range of densities for a fixed net chemical composition. Methods of optimization of the physical properties of the foams such as porosity, cell size and distribution, cell openness etc. of these materials, to further expand their uses and improve their performance.
-
-
-
-
-
-
-
-
-
搜索结果
104 条记录 (耗时 0.041 秒)
