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    • 2. 发明公开
    • 인공 혈관
    • 人造血管
    • KR1020000057397A
    • 2000-09-15
    • KR1019997004956
    • 1997-12-02
    • 시미즈, 야스히꼬가부시끼가이샤 타픽
    • 시미즈,야스히꼬
    • A61F2/06A61L27/24
    • A61L27/58A61F2/06A61F2210/0004A61L27/24A61L27/507A61L2430/36
    • PURPOSE: An artificial blood vessel is provided which is advantageous in that the material therefor is easily available, that the application to a living body causes no significant rejection, that a suture can be held after implantation for a long period of time, and that, after a given period of time, it can be entirely or partially absorbed into the living body and decomposed. CONSTITUTION: A artificial blood vessel comprises a tube made of a supporting skeletal material and a collagen layer(2) of ultrafine fibers provided at least outside the tube, and a process for preparing the same. This vessel is produced by (1) impregnating a tube composed of a supporting framework material with collagen and drying; (2) freezing a collagen acidic solution at least on the outside of this tube followed by freeze-drying to form a collagen layer composed of ultra-fine fibers; (3) compressing the collagen-coated tube obtained in this manner; (4) additionally impregnating the tube obtained in step (3) with collagen and drying; (5) thermal crosslinking the tube obtained in step (4); and (6) coating the lumen of the tube with a matrix gel.
    • 目的:提供一种人造血管,其优点在于其材料易于获得,对生物体的应用不会引起明显的排斥,可以在植入后长时间保持缝合线, 在一段时间后,可以完全或部分地吸收到生物体内并分解。 构成:人造血管包括由支撑骨架材料制成的管和至少在管外部提供的超细纤维的胶原层(2)及其制备方法。 该容器通过以下步骤制造:(1)用胶原蛋白浸渍由支撑骨架材料构成的管并干燥; (2)至少在该管的外侧冷冻胶原酸性溶液,然后冷冻干燥以形成由超细纤维组成的胶原层; (3)压缩以这种方式获得的胶原涂层管; (4)用胶原和干燥另外浸渍步骤(3)中获得的管; (5)在步骤(4)中获得的管的热交联; 和(6)用基质凝胶涂覆管的内腔。
    • 3. 发明公开
    • 인공 식도
    • 人造ESOPHAGUS
    • KR1020000057130A
    • 2000-09-15
    • KR1019997004397
    • 1997-11-19
    • 시미즈, 야스히꼬가부시끼가이샤 타픽
    • 시미즈,야스히꼬
    • A61L27/00
    • A61F2/04A61L27/34C08L89/06
    • PURPOSE: An artificial esophagus is provided which comprises a tube having a layer of microfibrillar collagen on its outer side. CONSTITUTION: It is capable of retaining over a certain period the effect characteristic of collagen such that esophageal epithelium regeneration is accelerated in a defective region of the esophagus to thereby effect esophageal neogenesis. It is decomposed and absorbed by the body in accordance with the neogenesis and thus leaves no foreign substance. It does not require an operator to use a complicated suturing technique. It is free from bleeding or air leakage from the suture, and facilitates stent removal after esophageal reconstruction.
    • 目的:提供人造食管,其包括在其外侧具有一层微原纤维胶原的管。 构成:能够在一定时间内保留胶原蛋白的效果特征,使食管上皮再生在食道的缺陷区域加速,从而进行食管新生。 它根据新生物被身体分解和吸收,因此不会留下异物。 不需要操作者使用复杂的缝合技术。 缝合线无出血或漏气,便于食管重建后支架移除。