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    • 4. 发明公开
    • 척추원판의 핵의 적어도 일부를 대체하기 위한 하이드로겔기재의 보철 장치
    • 用于替代脊髓核的一部分的基于水凝胶的前置装置
    • KR1020050092762A
    • 2005-09-22
    • KR1020057013169
    • 2003-01-16
    • 리플리케이션 메디칼, 인크
    • 스토이,블라디미르,에이.
    • A61F2/44
    • A61F2/442A61F2002/30014A61F2002/30016A61F2002/30075A61F2002/30125A61F2002/30324A61F2002/30448A61F2002/30563A61F2002/30971A61F2002/444A61F2002/4495A61F2210/0061A61F2220/005A61F2230/0008A61F2250/0018A61F2250/0019A61F2250/0036A61F2310/00365
    • The present invention is a prosthetic for replacement of at least a part of the nucleus of a intravertebral disc. The prosthetic device is composed of at least two substantially parallel soft layers (13, 15, 17, 19) of an elastically deformable hydrogel and at least one more rigid layer (21, 23, 25), the more rigid layer having less compressibility than the soft layers, being adjacent to the soft layers, and firmly attached to them. In some embodiments, the soft layers have the same thickness and composition. Typically, the prosthesis has more than one more rigid layer and these more rigid layers have the same thickness and composition. The number of soft layers is usually one more than the number of more rigid layers, with, e.g., at least three soft layers. The invention also includes a method of prosthesis production, which involves prefabricating soft and more rigid layers; stacking at least two prefabricated soft and at least one prefabricated more rigid layer in a substantially parallel fashion into their final form, and, permitting the layers to firmly connect to one another by mutual interaction. In this method, at least one type of the layers is prefabricated in the dehydrated state, which is done by dehydrating stretched foil in an apparatus preventing its contraction and thereby decreasing its area. There is at least partial dehydration of the prosthesis under pressure applied in a direction tangent to the planes of the layers. In preferred embodiments, while in the state of almost full dehydration, the implant is sterilized using ionizing radiation or a gaseous chemical agent, after which it is partially rehydrated within a sterile wrapper using water vapor.
    • 本发明是用于替代椎间盘的核的至少一部分的假体。 所述假体装置由至少两个基本平行的可弹性变形的水凝胶和至少一个更刚性层(21,23,25)的软层(13,15,17,19)组成,所述刚性层的压缩性比 软层,与软层相邻,并牢固地附着在它们上。 在一些实施例中,软层具有相同的厚度和组成。 通常,假体具有多于一个的刚性层,并且这些更刚性的层具有相同的厚度和组成。 软层的数量通常比更刚性层的数量多一个,例如至少三个软层。 本发明还包括假体生产方法,其涉及预制柔性和更刚性的层; 将至少两个预制的软的和至少一个预制的更刚性的层以基本上平行的方式堆叠成其最终形式,并且允许层通过相互作用彼此牢固地连接。 在这种方法中,至少一种类型的层是在脱水状态下预制的,其通过在防止其收缩的装置中脱水拉伸的箔并因此减小其面积来实现。 在与层的平面相切的方向上施加压力的假体至少部分脱水。 在优选的实施方案中,在几乎完全脱水的状态下,使用电离辐射或气体化学试剂对植入物进行灭菌,然后使用水蒸气在无菌包装内部分地再水合。
    • 8. 发明公开
    • 순수 점막하조직으로부터의 관상 이식편
    • 来自纯化子囊的管状植物
    • KR1020000057496A
    • 2000-09-15
    • KR1019997005175
    • 1997-12-10
    • 쿠크 바이오텍 인코포레이티드메드 인스티튜트, 인코포레이티드
    • 피얼노트닐이하일즈미첼시
    • A61F2/04A61F2/06A61L27/24
    • A61L27/3604A61F2/06A61F2310/00365A61L27/24A61L27/3629A61L27/3687
    • PURPOSE: An easy-to-produce and mechanically strong tube of an implantable submucosal tissue has been developed which is manufactured in any desired length, wall thickness, or diameter. The construct produced by the method of the invention may be used as grafts for arteries, veins, ureters, urethras, shunts, or in any application where a compliant, tissue-compatible tube is needed. CONSTITUTION: A manufacture of the submucosal tissue prosthesis generally involves wrapping a first sheet of submucosal tissue (60) and a second sheet of submucosal tissue (70) around a mandrel (50), wherein the first end (74) and the second opposite end (76) of the second sheet of submucosal tissue (70) are sutured together with sutures (78). The submucosal tissue is compressed and dried on the mandrel (50) before removing the construct by pulling on a first end (54) and a second end (56) of a water permeable tape to unwind the tape and thus release the construct for eventual use.
    • 目的:开发了一种易于生产和机械强度可植入粘膜下组织的管,其以任何所需长度,壁厚或直径制造。 通过本发明的方法生产的构造体可以用作动脉,静脉,输尿管,尿道,分流器的移植物,或者在需要顺应的组织相容管的任何应用中。 构成:粘膜下组织假体的制造通常包括围绕心轴(50)缠绕第一片粘膜下组织(60)和第二片粘膜下组织(70),其中第一端(74)和第二相对端 将第二片粘膜下组织(70)的第二片(76)与缝合线(78)缝合在一起。 在通过拉动透水性带的第一端(54)和第二端(56)去除构造物之前,在心轴(50)上压缩并干燥粘膜下组织以展开带,并因此释放构造物以最终使用 。