Composite surgical material
    3.
    发明授权
    Composite surgical material 失效
    复合手术材料

    公开(公告)号:US06001895A

    公开(公告)日:1999-12-14

    申请号:US994276

    申请日:1997-12-19

    摘要: A composite surgical material comprising a collagen matrix reinforced by a layer of a synthetic bioabsorbable material such as polylactide/polyglycolide or oxidized regenerated cellulose, and wherein oil droplets are dispersed in the collagen matrix. The oil droplets comprise 1% to 75% of the weight of the composite and result in improved leak-proofing of the composite. The composite, in the form of a sheet or a tube, is especially useful as a temporary, fully bioabsorbable prosthesis, for membranes or blood vessels where a highly leak-proof prosthesis is required. The invention also provides a method of making a composite surgical material comprising the steps of: providing a layer of a synthetic bioabsorbable material; providing a dispersion of collagen in an oil-in-water emulsion; coating at least one face of the layer of synthetic bioabsorbable material with the said dispersion; and drying the composite material thus obtained.

    摘要翻译: 一种复合手术材料,其包含由合成的生物可吸收材料层如聚丙交酯/聚乙交酯或氧化再生纤维素增强的胶原基质,并且其中油滴分散在胶原基质中。 油滴占复合材料重量的1%至75%,从而改善了复合材料的防漏性能。 以片或管的形式的复合材料作为需要高度防漏假体的膜或血管的临时的,完全生物可吸收的假体是特别有用的。 本发明还提供一种制备复合外科材料的方法,包括以下步骤:提供合成的生物可吸收材料的层; 提供胶原蛋白在水包油乳液中的分散体; 用所述分散体涂覆合成的生物可吸收材料层的至少一个面; 并干燥由此获得的复合材料。

    Composite surgical material
    5.
    发明授权
    Composite surgical material 失效
    复合手术材料

    公开(公告)号:US6015844A

    公开(公告)日:2000-01-18

    申请号:US995228

    申请日:1997-12-19

    摘要: A composite surgical material comprising a collagen matrix reinforced by a layer of a synthetic bioabsorbable material such as polylactide/polyglycolide or oxidised regenerated cellulose, and wherein oil droplets are dispersed in the collagen matrix. The oil droplets comprise 1% to 75% of the weight of the composite and result in improved leak-proofing of the composite. The composite, in the form of a sheet or a tube, is especially useful as a temporary, fully bioabsorbable prosthesis, for membranes or blood vessels where a highly leak-proof prosthesis is required. The invention also provides a method of making a composite surgical material comprising the steps of: providing a layer of a synthetic bioabsorbable material; providing a dispersion of collagen in an oil-in-water emulsion; coating at least one face of the layer of synthetic bioabsorbable material with the said dispersion; and drying the composite material thus obtained.

    摘要翻译: 一种复合手术材料,其包含由合成的生物可吸收材料层如聚丙交酯/聚乙交酯或氧化的再生纤维素增强的胶原基质,并且其中油滴分散在胶原基质中。 油滴占复合材料重量的1%至75%,从而改善了复合材料的防漏性能。 以片或管的形式的复合材料作为需要高度防漏假体的膜或血管的临时的,完全生物可吸收的假体是特别有用的。 本发明还提供一种制备复合外科材料的方法,包括以下步骤:提供合成的生物可吸收材料的层; 提供胶原蛋白在水包油乳液中的分散体; 用所述分散体涂覆合成的生物可吸收材料层的至少一个面; 并干燥由此获得的复合材料。

    Bioresorbable alginate derivatives
    8.
    发明授权
    Bioresorbable alginate derivatives 失效
    生物可再生藻酸衍生物

    公开(公告)号:US06440940B1

    公开(公告)日:2002-08-27

    申请号:US08993372

    申请日:1997-12-18

    IPC分类号: A61K31715

    摘要: The invention provides oxidized alginates that are bioresorbable. The oxidized alginates are prepared by controlled oxidation of alginates with nitrogen tetroxide or the like, The invention also provides pharmaceutical compositions, wound dressings, surgical implants and prostheses comprising the oxidized alginate derivatives.

    摘要翻译: 本发明提供了生物可再吸收的氧化藻酸盐。 氧化的藻酸盐通过用氮氧化物等控制氧化藻酸盐来制备。本发明还提供药物组合物,伤口敷料,外科植入物和包含氧化的藻酸盐衍生物的假体。

    Dentine protection
    9.
    发明授权
    Dentine protection 失效
    牙齿保护

    公开(公告)号:US5192362A

    公开(公告)日:1993-03-09

    申请号:US735752

    申请日:1991-07-29

    摘要: To combat the accumulation of plaque on dentures, a non self-supporting coating of a non-toxic, negatively charged polysaccharide is applied. The polysaccharide coating is gradually sacrificed or ablated during wear. Ablation appears to remove microorganisms along with coating material. The polysaccharide is further defined by an ability to reduce the adhesion of Streptococcus salivarius cells in a simple in vitro bacterial adhesion test by at least 25% over a control.

    摘要翻译: PCT No.PCT / GB89 / 00134 Sec。 371 1990年6月29日第 102(e)日期1990年6月29日PCT提交1989年2月10日PCT公布。 出版物WO89 / 07437 日期1989年8月24日。为了对抗假牙上斑块的积累,应用无毒,带负电荷的多糖的非自支撑涂层。 多糖涂层在磨损期间逐渐被牺牲或消融。 消融似乎与涂层材料一起除去微生物。 多糖还通过在简单的体外细菌粘附试验中将唾液链球菌细胞的粘附力降低至少25%以上的能力来定义。

    Absorbable structures for ligament and tendon repair
    10.
    发明授权
    Absorbable structures for ligament and tendon repair 失效
    用于韧带和肌腱修复的可吸收结构

    公开(公告)号:US5514181A

    公开(公告)日:1996-05-07

    申请号:US314986

    申请日:1994-09-29

    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。