-
公开(公告)号:US06713083B1
公开(公告)日:2004-03-30
申请号:US09142814
申请日:1999-05-21
申请人: James McGregor , Paul W. Watt
发明人: James McGregor , Paul W. Watt
IPC分类号: A61K970
CPC分类号: A61L26/0033 , A61K9/1652 , A61K9/1694 , A61K9/5031 , A61L15/64 , A61L26/009 , A61L27/44 , Y10T428/30
摘要: The invention provides a material for use in a wound dressing or wound implant, the material comprising a plurality of beads, wherein each bead comprises a porous core of a first bioabsorbable material and a substantially non-porous layer of a second bioabsorbable material around the core. The porous core is preferably a sponge formed by freeze-drying a liquid suspension of the first bioabsorbable material. The preferred diameter of the beads is 0.1-4.0 mm, and the beads are preferably dispersed in a liquid or solid matrix. The invention also provides a method of making beads for use in the materials of the invention.
摘要翻译: 本发明提供了用于伤口敷料或伤口植入物的材料,该材料包括多个珠粒,其中每个珠粒包含第一生物可吸收材料的多孔芯和围绕该芯的第二生物可吸收材料的基本上无孔的层 。 多孔芯优选是通过冷冻干燥第一生物可吸收材料的液体悬浮液形成的海绵。 珠的优选直径为0.1-4.0mm,并且珠优选分散在液体或固体基质中。 本发明还提供了制备用于本发明的材料的珠粒的方法。
-
公开(公告)号:US5869080A
公开(公告)日:1999-02-09
申请号:US653890
申请日:1996-05-28
申请人: James McGregor , Paul W. Watt , Nicholas D. Light , Wilson Harvey
发明人: James McGregor , Paul W. Watt , Nicholas D. Light , Wilson Harvey
CPC分类号: A61L27/58 , A61L15/425 , A61L15/64 , A61L27/56
摘要: Absorbable implant materials having controlled porosity are formed by a method comprising the steps of: providing a dispersion of a bioabsorbable polymer, such as collagen, in a first solvent, such as water; adding particles of a second material, e.g. frozen water droplets or ice particles to the dispersion; followed by freezing the dispersion to form a frozen dispersion having the particles embedded therein, and removing both the first solvent and the second material from the frozen dispersion by freeze-drying or solvent extraction to leave the porous implant material. The invention also encompasses the use of such implant materials for wound healing applications.
摘要翻译: 具有受控孔隙率的可吸收植入材料通过包括以下步骤的方法形成:将生物可吸收聚合物如胶原的分散体提供在第一溶剂如水中; 添加第二材料的颗粒,例如。 将冷冻水滴或冰粒分散; 然后冷冻分散体以形成其中嵌入有颗粒的冷冻分散体,并且通过冷冻干燥或溶剂萃取从冷冻分散体中除去第一溶剂和第二材料以留下多孔植入材料。 本发明还包括这种植入材料用于伤口愈合应用的用途。
-
公开(公告)号:US5660857A
公开(公告)日:1997-08-26
申请号:US437905
申请日:1995-05-10
申请人: Carla A. Haynes , Wilson Harvey , Paul W. Watt
发明人: Carla A. Haynes , Wilson Harvey , Paul W. Watt
IPC分类号: A61K8/02 , A61K8/04 , A61K8/65 , A61K8/92 , A61K9/16 , A61K9/70 , A61L27/48 , A61Q11/00 , A61Q19/00 , A61K9/48 , A61F2/02
CPC分类号: A61Q19/00 , A61K8/0208 , A61K8/65 , A61K8/92 , A61K8/922 , A61K9/1658 , A61K9/7007 , A61L27/48
摘要: A process for preparing a composite comprising an insoluble protein matrix and an oleaginous material, which is useful as a material for surgical dressings and biomedical implants, and as a cosmetic material for application to the skin. The process comprises the steps of mixing a protein, the oleaginous material and water to form an emulsion of the oleaginous material in an aqueous dispersion of the protein, and subsequently drying or freeze-drying the emulsion to form a film or a sponge.
摘要翻译: 一种制备包含不溶性蛋白质基质和油性材料的复合材料的方法,其可用作外科敷料和生物医学植入物的材料,以及用作施用于皮肤的化妆品材料。 该方法包括以下步骤:将蛋白质,含油材料和水混合以形成含油材料在蛋白质的水分散体中的乳液,然后干燥或冷冻干燥乳液以形成膜或海绵。
-
4.
公开(公告)号:US5595621A
公开(公告)日:1997-01-21
申请号:US485244
申请日:1995-06-07
申请人: Nicholas D. Light , James McGregor , Wilson Harvey , Paul W. Watt
发明人: Nicholas D. Light , James McGregor , Wilson Harvey , Paul W. Watt
CPC分类号: A61L27/58 , A61B17/1146 , A61F2/08 , A61L27/48 , A61B2017/00004 , A61F2002/30062 , A61F2002/30064 , A61F2002/30224 , A61F2002/30291 , A61F2002/30293 , A61F2002/30971 , A61F2210/0004 , A61F2230/0069 , A61F2230/0091 , A61F2240/001 , Y10S623/901
摘要: A fully absorbable prosthesis (1) for the repair of damaged ligaments and/or tendons in the form of a multilayer spiral roll comprising the following spiral layers: a foraminous layer (2) of a synthetic bioabsorbable material; a bioabsorbable film (3); and a layer (4) of a bioabsorbable biopolymer sponge. The invention also provides a method of making such a prosthesis, comprising the steps of: providing a laminate of a foraminous layer of bioabsorbable material and a bioabsorbable film; coating the laminate with a layer of an aqueous gel comprising a bioabsorbable polymer; rolling up the laminate and the gel layer into a spiral roll, followed by drying the gel to form a layer of bioabsorbable sponge. The foraminous layer (2) preferably comprises a synthetic bioabsorbable polymer having high tensile strength. The bioabsorbable film (3) and sponge layer (4) preferably comprise a chemotactic biopolymer such as collagen.
摘要翻译: 一种完全可吸收的假体(1),用于修复包括以下螺旋层的多层螺旋卷形式的受损韧带和/或腱:一种合成的生物可吸收材料的多孔层(2) 生物可吸收膜(3); 和生物可吸收生物聚合物海绵的层(4)。 本发明还提供了一种制造这种假体的方法,包括以下步骤:提供生物可吸收材料的多孔层和生物可吸收膜的层压体; 用包含生物可吸收聚合物的水性凝胶层涂覆层压体; 将层压体和凝胶层卷起成螺旋卷,然后干燥凝胶以形成生物可吸收海绵层。 多孔层(2)优选包含具有高拉伸强度的合成的生物可吸收聚合物。 生物可吸收膜(3)和海绵层(4)优选包含趋化性生物聚合物如胶原蛋白。
-
公开(公告)号:US5700477A
公开(公告)日:1997-12-23
申请号:US416238
申请日:1995-04-04
IPC分类号: A61F2/00 , A61F13/00 , A61F13/15 , A61L15/22 , A61L15/42 , A61L15/54 , A61L27/48 , A61L27/54 , A61L27/56 , A61L27/58 , A61F2/02 , A61F13/20 , A61K47/42
CPC分类号: A61L27/58 , A61F13/00991 , A61F13/15 , A61L15/225 , A61L15/425 , A61L15/54 , A61L15/64 , A61L27/48 , A61L27/54 , A61L27/56 , A61F2013/00093 , A61F2013/00221 , A61F2013/00255 , A61F2013/00863 , A61F2310/00365 , A61L2300/412
摘要: Heteromorphic sponges are described which have matrix structures with oriented substructures added to facilitate cellular invasion. A sponge may be used as a wound implant by cutting it to the shape of a wound bed and placing therein. The matrix structure provides conduits which assist invasion of the sponge by cells which degrade the sponge and lay down new tissue to replace it. The incorporation of active agents in the matrix and/or substructures enhances wound healing.
摘要翻译: 描述了具有添加了定向亚结构的矩阵结构以促进细胞侵入的异形海绵。 通过将海绵切割成伤口床的形状并放置在其中,可以将海绵用作伤口植入物。 基质结构提供了一些导管,其帮助海绵细胞侵入海绵并降解海绵并放置新组织来代替海绵。 活性剂在基质和/或亚结构中的掺入增强伤口愈合。
-
公开(公告)号:US5565210A
公开(公告)日:1996-10-15
申请号:US417184
申请日:1995-04-05
IPC分类号: A61F2/00 , A61F13/00 , A61F13/15 , A61L15/22 , A61L15/32 , A61L15/42 , A61L15/54 , A61L15/64 , A61L27/24 , A61L27/48 , A61L27/56 , A61L27/58 , A61F2/02 , A61K47/36 , A61K47/38 , A61K47/42
CPC分类号: A61L27/58 , A61F13/15 , A61L15/225 , A61L15/325 , A61L15/425 , A61L15/54 , A61L15/64 , A61L27/24 , A61L27/48 , A61L27/56 , A61F2013/00221 , A61F2310/00365 , Y10S514/953
摘要: Heteromorphic sponges are described which have matrix structures with oriented substructures added to facilitate cellular invasion. A sponge may be used as a wound implant by cutting it to the shape of a wound bed and placing therein. The matrix structure provides conduits which assist invasion of the sponge by cells which degrade the sponge and lay down new tissue to replace it. The incorporation of active agents in the matrix and/or substructures enhances wound healing.
摘要翻译: 描述了具有添加了定向亚结构的矩阵结构以促进细胞侵入的异形海绵。 通过将海绵切割成伤口床的形状并放置在其中,可以将海绵用作伤口植入物。 基质结构提供了一些导管,其帮助海绵细胞侵入海绵并降解海绵并放置新组织来代替海绵。 活性剂在基质和/或亚结构中的掺入增强伤口愈合。
-
公开(公告)号:US06835336B2
公开(公告)日:2004-12-28
申请号:US09887742
申请日:2001-06-22
申请人: Paul W. Watt
发明人: Paul W. Watt
IPC分类号: B29C3936
CPC分类号: A61L31/044 , A61B17/07292 , A61L31/042 , A61L31/045 , A61L31/047 , Y10T29/49947
摘要: The invention provides biopolymer sponge tubes closed at one end for use in surgery. The preferred biopolymer iscollagen. The biopolymer sponge tubes are prepared by forming an aqueous dispersion of the biopolymer, introducing the dispersion into tube-shaped moulds, freezing the dispersion in the moulds to form a shaped, aqueous dispersion, followed by freeze-drying the frozen aqueous dispersion. The tubes are fitted over endoscopic surgical staplers to provide improved sealing of stapled tissues, especially for air-tight sealing in lung resections.
摘要翻译: 本发明提供在一端封闭以用于手术的生物聚合物海绵管。 优选的生物聚合物是胶原。 生物聚合物海绵管通过形成生物聚合物的水性分散体制备,将分散体引入管状模具中,将模具中的分散体冷冻以形成成型的水分散体,然后冷冻干燥冷冻的水分散体。 这些管装配在内窥镜外科缝合器上,以提供缝合组织的改进的密封,特别是用于肺切除术中的气密密封。
-
公开(公告)号:US5514181A
公开(公告)日:1996-05-07
申请号:US314986
申请日:1994-09-29
CPC分类号: A61L27/58 , A61B17/1146 , A61F2/08 , A61L27/48 , A61B2017/00004 , A61F2002/30062 , A61F2002/30064 , A61F2002/30224 , A61F2002/30291 , A61F2002/30293 , A61F2002/30971 , A61F2210/0004 , A61F2230/0069 , A61F2230/0091 , A61F2240/001 , Y10S623/901
摘要: A fully absorbable prosthesis (1) for the repair of damaged ligaments and/or tendons in the form of a multilayer spiral roll comprising the following spiral layers: a foraminous layer (2) of a synthetic bioabsorbable material; a bioabsorbable film (3); and a layer (4) of a bioabsorbable biopolymer sponge. The invention also provides a method of making such a prosthesis, comprising the steps of: providing a laminate of a foraminous layer of bioabsorbable material and a bioabsorbable film; coating the laminate with a layer of an aqueous gel comprising a bioabsorbable polymer; rolling up the laminate and the gel layer into a spiral roll, followed by drying the gel to form a layer of bioabsorbable sponge. The foraminous layer (2) preferably comprises a synthetic bioabsorbable polymer having high tensile strength. The bioabsorbable film (3) and sponge layer (4) preferably comprise a chemotactic biopolymer such as collagen.
摘要翻译: 一种完全可吸收的假体(1),用于修复包括以下螺旋层的多层螺旋卷形式的受损韧带和/或腱:一种合成的生物可吸收材料的多孔层(2) 生物可吸收膜(3); 和生物可吸收生物聚合物海绵的层(4)。 本发明还提供了一种制造这种假体的方法,包括以下步骤:提供生物可吸收材料的多孔层和生物可吸收膜的层压体; 用包含生物可吸收聚合物的水性凝胶层涂覆层压体; 将层压体和凝胶层卷起成螺旋卷,然后干燥凝胶以形成生物可吸收海绵层。 多孔层(2)优选包含具有高拉伸强度的合成的生物可吸收聚合物。 生物可吸收膜(3)和海绵层(4)优选包含趋化性生物聚合物如胶原蛋白。
-
-
-
-
-
-
-