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    • 5. 发明申请
    • IMPLANT MATERIAL
    • 植物材料
    • WO00010620A1
    • 2000-03-02
    • PCT/AU1999/000670
    • 1999-08-20
    • A61L27/38A61L27/50A61L27/00
    • A61L27/3804A61L27/507Y10S623/916
    • The present invention relates generally to tissue implant material for use in grafting procedures. More particularly, the present invention provides non-vascular tissue for use as vascular graft material. The present invention further contemplates a method of vascular grafting using non-vascular tissue. The tissue of the present invention is preferably autologous relative to the recipient of the graft and is conveniently prepared around or on a molding support inserted into a body cavity of the intended recipient of the graft. The tissues and methods of the present invention are particularly useful in the treatment or prophylaxis of diseased or damaged blood vessels such as in atherosclerosis.
    • 本发明一般涉及用于接枝过程的组织植入材料。 更具体地,本发明提供用作血管移植材料的非血管组织。 本发明还考虑使用非血管组织进行血管移植的方法。 本发明的组织优选相对于移植物的接受者是自体的,并且方便地在插入到移植物的预期受体的体腔内的模制支架上或周围制备。 本发明的组织和方法特别可用于治疗或预防动脉粥样硬化中患病或受损的血管。
    • 7. 发明申请
    • SYSTEM AND METHOD TO SIMULATE HEMODYNAMICS
    • 用于模拟血液动力学的系统和方法
    • WO0232224A9
    • 2006-11-09
    • PCT/US0142576
    • 2001-10-09
    • DANCU MICHAEL BTARBELL JOHN M
    • DANCU MICHAEL BTARBELL JOHN M
    • A01N1/00A61F2/04C12M1/36G01N15/00G09B23/28
    • G09B23/28Y10S623/916Y10S623/917Y10S623/921
    • A system for hemodynamic simulation comprises a vessel (12) having properties of a blood vessel, a reservoir (14) containing a quantity of fluid, tubing (24) connecting the vessel (12) and reservoir (14), and at least one pump (22) for circulating the fluid within the system. Fluid can be tissue culture medium or blood analog fluid, and the vessel (12) may include mammalian cells attached to its inside. A drive system (44), comprising two reciprocating drive shafts (50, 52) that are coupled by a cam (54), enables the uncoupling of pulsatile flow and pulsatile pressure to provide independent control over wall shear stress and cirumferential strain. The shaft drives two pumps that are 180 degrees out-of-phase and are connected upstream and downstream of the vessel, and effect this uncoupling.
    • 一种用于血液动力学模拟的系统包括具有血管特性的容器(12),容纳一定量流体的储存器(14),连接容器(12)和贮存器(14)的管道(24)以及至少一个泵 (22),用于使系统内的流体循环。 流体可以是组织培养基或血液类似物流体,血管(12)可以包括附着在其内部的哺乳动物细胞。 包括由凸轮(54)联接的两个往复运动驱动轴(50,52)的驱动系统(44)使脉冲流和脉动压力的解耦能够提供对壁剪切应力和推力应变的独立控制。 轴驱动两个相位相差180度的泵,并连接在容器的上游和下游,并实现了这种解耦。
    • 9. 发明申请
    • METHODS FOR MITIGATING CALCIFICATION AND IMPROVING DURABILITY IN GLUTARALDEHYDE-FIXED BIOPROSTHESES AND ARTICLES MANUFACTURED BY SUCH METHODS
    • 用于减少葡萄糖固定生物碱的计算和改善耐久性的方法和通过这些方法制备的制品
    • WO1998004299A1
    • 1998-02-05
    • PCT/US1997010712
    • 1997-06-19
    • BAXTER INTERNATIONAL INC.
    • BAXTER INTERNATIONAL INC.YANG, JunSHEN, Shih-Hwa
    • A61L27/00
    • A61L27/3687A61L27/3604A61L2400/02Y10S623/916Y10S623/918Y10S623/92Y10S623/921
    • Methods for treating glutaraldehyde-fixed collagenous tissues to mitigate their propensity for subsequent calcification and to improve durability. Collagenous tissues which have been harvested and cross-linked by glutaraldehyde are exposed to a carboxyl activating agent to convert the free carboxyl (COOH) groups of the collagen molecules to activated carboxyl moieties (e.g., o-acylisourea). Thereafter, the collagenous tissue is exposed to a compound capable of reacting with the activated carboxyl moieties (e.g., o-acylisourea) to form non-carboxyl side groups. Monofunctional and multi-functional amines are examples of compounds which may be utilized to react with the activated carboxyl moieties to form such non-carboxyl side groups. Thereafter, the collagenous tissue is again exposed to glutaraldehyde. If the non-carboxyl side groups have functional amino groups (NH2), such additional exposure to glutaraldehyde will result in additional glutaraldehyde cross-linking of the collagen molecules and resultant improvement of durability.
    • 用于治疗戊二醛固定的胶原组织以减轻其后续钙化倾向并改善耐久性的方法。 已经通过戊二醛收获和交联的胶原组织暴露于羧基活化剂,以将胶原分子的游离羧基(COOH)基团转化成活化的羧基部分(例如邻酰基异脲)。 此后,将胶原组织暴露于能够与活化的羧基部分反应的化合物(例如,O-酰基异脲)以形成非羧基侧基。 单官能和多官能胺是可用于与活化的羧基部分反应以形成这种非羧基侧基的化合物的实例。 此后,胶原组织再次暴露于戊二醛。 如果非羧基侧基具有官能氨基(NH 2),则另外暴露于戊二醛将导致胶原分子的另外的戊二醛交联,从而提高耐久性。