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45 条记录 (耗时 0.026 秒)

    Artificial cornea
    32.
    发明授权
    Artificial cornea 失效
    人造角膜

    公开(公告)号：US06391055B1

    公开(公告)日：2002-05-21

    申请号：US09101279

    申请日：1998-12-03

    申请人： Yoshito Ikada ,  Junichi Ohashi ,  Naoki Kondo ,  Aoi Nishizawa ,  Ichiro Ando

    发明人： Yoshito Ikada ,  Junichi Ohashi ,  Naoki Kondo ,  Aoi Nishizawa ,  Ichiro Ando

    IPC分类号： A61F214

    CPC分类号： A61F2/142

    摘要： An artificial cornea comprising an optical element made of an optically transparent material, having a front surface and a posterior surface, and a skirt provided so as to support with surrounding at least a part of the optical element, characterized in that the skirt is provided with a flange on its side facing the interior of eyes during implantation of the artificial cornea and the flange radially protrudes outward from the skirt. The artificial cornea can be well compatible with ocular tissue, prevent leakage of intraocular aqueous humor and intraocular invasion of bacteria, reduce stimulation on palpebral conjunctiva and further, inhibit progression of the down growth, and which has no possibility of reduction in transparency of the optical element due to the down growth as well as detachment and extrusion from the implanted state.

    摘要翻译： 一种人造角膜，包括由具有前表面和后表面的光学透明材料制成的光学元件和裙部，所述裙部设置成围绕所述光学元件的至少一部分支撑，其特征在于，所述裙部设置有 在植入人造角膜期间在其面向眼睛内部的一侧的凸缘从裙部向外径向突出。 人造角膜可以很好地与眼组织相容，防止眼内房水的渗漏和细菌的眼内侵袭，减少对睑结膜的刺激，并进一步抑制下降生长的进展，并且不会降低光学透明度的可能性 因为下降的生长以及从注入状态的脱离和挤出。

    Biodegradable and resorbable surgical material and process for preparation of the same
    33.
    发明授权
    Biodegradable and resorbable surgical material and process for preparation of the same 失效
    可生物降解和可吸收的手术材料及其制备方法

    公开(公告)号：US5227412A

    公开(公告)日：1993-07-13

    申请号：US944019

    申请日：1992-09-14

    申请人： Suong-Hyu Hyon ,  Yoshito Ikada ,  Yasuo Shikinami ,  Kaoru Tsuta ,  Hidekazu Boutani

    发明人： Suong-Hyu Hyon ,  Yoshito Ikada ,  Yasuo Shikinami ,  Kaoru Tsuta ,  Hidekazu Boutani

    IPC分类号： A61L31/06 ,  A61L31/14

    CPC分类号： A61L31/148 ,  A61L31/06 ,  A61L31/14

    摘要： Biodegradable and resorbable surgical materials of molded articles of poly(lactic acid) or copolymers of lactic acid and glycolic acid, characterized in that the articles are molecular-orientated, and having a bending strength of 1.6.times.10.sup.33 to 2.5.times.10.sup.3 kg/cm.sup.2, a bending modulus of 5.5.times.10.sup.2 to 24.0.times.10.sup.2 kg/cm.sup.2, a crystallinity, determined by density measurement, of 10 to 60%, and a viscosity average molecular weight measured after melt processing of not less than 200,000, and in that at least 80% of initial strength of the articles is maintained after dipping in a saline at 37.degree. C. for three months.

    摘要翻译： 聚（乳酸）或乳酸和乙醇酸共聚物的可生物降解和可再吸收的外科材料，其特征在于制品是分子取向的，并且具有1.6×1033至2.5×10 3 kg / cm 2的弯曲强度， 5.5×102〜24.0×102kg / cm2的模量，通过密度测定确定的结晶度为10〜60％，熔融加工后测定的粘均分子量为20万以上，初始值为80％以上 在37℃的盐水中浸渍3个月后，保持制品的强度。

    Expanding-contracting hydrogel composite and process for preparation thereof
    34.
    发明授权
    Expanding-contracting hydrogel composite and process for preparation thereof 失效
    膨胀收缩水凝胶复合材料及其制备方法

    公开(公告)号：US5171775A

    公开(公告)日：1992-12-15

    申请号：US316611

    申请日：1989-05-19

    申请人： Daniel Graiver ,  Sho-kyu Gen ,  Yoshito Ikada

    发明人： Daniel Graiver ,  Sho-kyu Gen ,  Yoshito Ikada

    IPC分类号： C08J3/09 ,  C08L29/04 ,  C08L33/02

    CPC分类号： C08J3/097 ,  C08L29/04 ,  C08L33/02 ,  C08J2329/04

    摘要： A process is provided for the preparation of expanding-contracting hydrogel composites which process comprises the steps of adding solid particles of a polyelectrolyte to a polyvinyl alcohol solution and subjecting the mixture to a low temperature treatment to cause gelation of the polyvinyl alcohol with the polyelectrolyte dispersed as a heterogeneous phase (i.e. solid particles) within the polyvinyl alcohol gel. Hydrogel composites made by the process exhibit high strength and a capacity to expand and contract over a wide range with changes in environment.

    摘要翻译： 提供了一种制备膨胀收缩水凝胶复合材料的方法，该方法包括以下步骤：将聚电解质的固体颗粒加入到聚乙烯醇溶液中，并使混合物进行低温处理，使聚乙烯醇与聚电解质分散的凝胶化 作为聚乙烯醇凝胶内的非均相（即固体颗粒）。 由该方法制备的水凝胶复合材料具有高强度和在广泛范围内随环境变化而扩展和收缩的能力。

    Releasable balloon catheter
    36.
    发明授权
    Releasable balloon catheter 失效
    可释放球囊导管

    公开(公告)号：US4402319A

    公开(公告)日：1983-09-06

    申请号：US335814

    申请日：1981-12-30

    申请人： Hajime Handa ,  Yasuhiro Yonekawa ,  Sen Yamagata ,  Waro Taki ,  Yoshito Ikada ,  Hiroo Iwata

    发明人： Hajime Handa ,  Yasuhiro Yonekawa ,  Sen Yamagata ,  Waro Taki ,  Yoshito Ikada ,  Hiroo Iwata

    IPC分类号： A61B17/12 ,  A61M29/02

    CPC分类号： A61B17/12195 ,  A61B17/12109 ,  A61B17/12136

    摘要： This invention provides a releasable balloon catheter having a portion cuttable by torsion or a portion cuttable by heating at or near a joint part between the catheter body and the balloon. When the balloon catheter is inserted into a vessel and carried to the desired site by the blood stream and the balloon is inflated by introducing a fluid into the balloon and is fixed at the desired site face-to-face with the wall of the vessel, torsion or heating causes the balloon to be released from the catheter body. The balloon catheter is used to embolize vascular lesions.

    摘要翻译： 本发明提供了一种可释放的气囊导管，其具有可由扭转部分切割的部分或通过在导管主体和气囊之间的接合部处或附近加热而可切割的部分。 当气囊导管插入血管并通过血流携带到期望的位置时，通过将流体引入气囊并将气体与血管的壁面对面地固定在所需位置而使气囊膨胀， 扭转或加热导致气囊从导管主体释放。 气囊导管用于栓塞血管病变。

    BASE MATERIAL FOR REVASCULARIZATION
    38.
    发明申请
    BASE MATERIAL FOR REVASCULARIZATION 有权
    基础材料进行重新整形

    公开(公告)号：US20110172757A1

    公开(公告)日：2011-07-14

    申请号：US13056239

    申请日：2009-07-28

    申请人： Goki Matsumura ,  Yoshito Ikada ,  Yuki Sakamoto ,  Shojiro Matsuda

    发明人： Goki Matsumura ,  Yoshito Ikada ,  Yuki Sakamoto ,  Shojiro Matsuda

    IPC分类号： A61F2/82

    CPC分类号： A61L27/507 ,  A61L27/48 ,  A61L27/56 ,  A61L27/58 ,  C08L67/04

    摘要： The present invention aims to provide a material for revascularization which enables the regeneration of a blood vessel at an extremely high efficiency by being transplanted into a defect of the blood vessel.The present invention provides a tubular material for revascularization comprising a foamed body comprising a bioabsorbable material, a reinforcing member comprising a bioabsorbable material for reinforcing the foamed body, and a reinforcing yarn comprising a bioabsorbable material for reinforcing the foamed body, wherein the reinforcing yarn and the reinforcing member are located at the center or outer face of the foamed body, the inner face thereof is the foamed body, the reinforcing yarn is wound around in a spiral-shaped, ring-shaped or X-shaped manner, and the reinforcing yarn comprises a glycolide-ε-caprolactone copolymer.

    摘要翻译： 本发明的目的在于提供一种用于血运重建的材料，其能够通过移植到血管的缺陷中而以非常高的效率使血管再生。 本发明提供了一种用于血运重建的管状材料，其包括包含生物可吸收材料的发泡体，包括用于增强发泡体的生物可吸收材料的加强构件，以及包含用于增强发泡体的生物可吸收材料的增强纱线，其中， 加强构件位于发泡体的中心或外表面，其内表面是发泡体，增强纱线以螺旋形，环形或X形缠绕，并且增强纱线 包括乙交酯 - 己内酯共聚物。