Non-woven keratin cell scaffold
    3.
    发明授权
    Non-woven keratin cell scaffold 有权
    无纺布角蛋白细胞支架

    公开(公告)号:US06461628B1

    公开(公告)日:2002-10-08

    申请号:US09587157

    申请日:2000-06-05

    IPC分类号: A01N2534

    摘要: A hydratable, highly absorbent keratin solid fiber or powder capable of absorbing a large weight excess of water may be produced by partially oxidizing hair keratin disulfide bonds to sulfonic acid residues and reacting the sulfonic acid residues with a cation. The neutralized suspension can be filtered, washed, and dried, leaving keratin solid which can be shredded into fibers and further ground into powder. Addition of water to the solid produces a hydrogel. The powder or hydrogel may be useful as an absorbent material, as a therapeutic for skin, or as an excipient. The keratin materials can be incorporated into nonwoven films. The hydrogel may be used as biocompatible viscoelastic filler for implant applications. Both the hydrogel and nonwoven materials are also suitable for use as tissue engineering scaffolds.

    摘要翻译: 可以通过将毛发角蛋白二硫键部分氧化成磺酸残基并使磺酸残基与阳离子反应来制备能够吸收大量过量水的可水合的高吸收性角蛋白固体纤维或粉末。 中和的悬浮液可以过滤,洗涤和干燥,留下角蛋白固体,将其切成纤维并进一步研磨成粉末。 向固体中加入水产生水凝胶。 粉末或水凝胶可用作吸收材料,作为皮肤的治疗剂或赋形剂。 角蛋白材料可以并入无纺膜中。 水凝胶可用作植入物应用的生物相容性粘弹性填料。 水凝胶和非织造材料都适用于组织工程支架。

    Absorbent keratin wound dressing
    4.
    发明授权
    Absorbent keratin wound dressing 有权
    吸收性角蛋白伤口敷料

    公开(公告)号:US06270793B1

    公开(公告)日:2001-08-07

    申请号:US09528893

    申请日:2000-03-20

    IPC分类号: A61F1300

    摘要: A hydratable, highly absorbent keratin solid fiber or powder capable of absorbing a large weight excess of water may be produced by partially oxidizing hair keratin disulfide bonds to sulfonic acid residues and reacting the sulfonic acid residues with a cation. The neutralized suspension can be filtered, washed, and dried, leaving keratin solid which can be shredded into fibers and further ground into powder. Addition of water to the solid produces a hydrogel. The powder or hydrogel may be useful as an absorbent material, as a therapeutic for skin, or as an excipient. The keratin materials can be incorporated into nonwoven films. Another use for the hydrogel is as a biocompatible viscoelastic filler for implant applications.

    摘要翻译: 可以通过将毛发角蛋白二硫键部分氧化成磺酸残基并使磺酸残基与阳离子反应来制备能够吸收大量过量水分的可水合的高吸收性角蛋白固体纤维或粉末。 中和的悬浮液可以过滤,洗涤和干燥,留下角蛋白固体,将其切成纤维并进一步研磨成粉末。 向固体中加入水产生水凝胶。 粉末或水凝胶可用作吸收材料,作为皮肤的治疗剂或赋形剂。 角蛋白材料可以并入无纺膜中。 水凝胶的另一用途是用于植入物应用的生物相容性粘弹性填料。

    Implantable prosthetic or tissue expanding device
    6.
    发明授权
    Implantable prosthetic or tissue expanding device 有权
    植入假体或组织扩张装置

    公开(公告)号:US06371984B1

    公开(公告)日:2002-04-16

    申请号:US09394783

    申请日:1999-09-13

    IPC分类号: A61F202

    摘要: A keratin hydrogel-filled implantable prosthetic device. One device is a breast implant for augmenting or reconstructing a human breast including an envelope containing a keratin hydrogel. One keratin hydrogel is formed from a solid precursor which forms a keratin hydrogel upon addition of water. One source of keratin is human hair. In one method, an envelope suitable for implantation and a solid keratin hydrogel precursor are provided. The solid can be in fibrous or powder form. The solid precursor can be inserted into the envelope interior. A small incision near the breast can be made and the envelope inserted into the incision. After insertion, water can be injected into the envelope interior, preferably through the incision and through a self-sealing port in the envelope. In one method, the implant is provided as a kit, with the envelope and keratin hydrogel provided. The hydrogel can be injected into the envelope either before or after insertion into the breast area. One kit has a powdered, keratin hydrogel precursor disposed within the envelope interior, awaiting the addition of water, preferably after insertion of the implant into the body.

    摘要翻译: 角蛋白水凝胶填充的可植入假体装置。 一种装置是用于增强或重建人乳房的乳房植入物,其包括含有角蛋白水凝胶的包膜。 一种角蛋白水凝胶由固体前体形成,其在加入水时形成角蛋白水凝胶。 角蛋白的一个来源是人的头发。 在一种方法中,提供适于植入的包膜和固体角蛋白水凝胶前体。 固体可以是纤维或粉末形式。 固体前体可以插入信封内部。 乳房附近有一个小切口,信封插入切口。 插入后,水可以注入信封内部,优选通过切口并通过信封中的自密封端口注入。 在一种方法中,植入物作为试剂盒提供,其中提供了包膜和角蛋白水凝胶。 在插入乳房区域之前或之后,可以将水凝胶注入到信封中。 一个试剂盒具有设置在信封内部的粉末状角蛋白水凝胶前体,等待加入水,优选在将植入物插入体内之后。

    Keratinous protein material for wound healing applications and method
    10.
    发明授权
    Keratinous protein material for wound healing applications and method 失效
    角质蛋白材料用于伤口愈合的应用和方法

    公开(公告)号:US06274163B1

    公开(公告)日:2001-08-14

    申请号:US09057161

    申请日:1998-04-08

    IPC分类号: A61F1300

    摘要: A keratinous wound healing material, preferably derived from the hair of the patient or a compatible donor. Keratin powder can be derived from hair using processing steps including cleaning, suspending in a liquid carrier, homogenizing and removing the liquid. The keratinous material may be applied to the wound in powder form. The keratin can also be applied in sheet form. The keratinous material can be bound with polymeric binder and formed into a sheet by pouring the polymer/binder solution into a mold and flashing off the solvent.

    摘要翻译: 角质创伤愈合材料,优选衍生自患者的头发或相容的供体。 可以使用包括清洗,悬浮在液体载体中,均化和除去液体的处理步骤从头发衍生角蛋白粉末。 角质材料可以以粉末形式施用于伤口。 角蛋白也可以以片状形式使用。 角质材料可以与聚合物粘合剂结合并通过将聚合物/粘合剂溶液倒入模具中并从溶剂中闪蒸而形成片材。