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    • 41. 发明申请
    • A SYNTHETIC BONE GRAFT
    • 合成骨髓
    • WO2008104964A2
    • 2008-09-04
    • PCT/IE2008/000016
    • 2008-02-26
    • UNIVERSITY OF LIMERICKBOYD, DanielTOWLER, Mark, Robert
    • BOYD, DanielTOWLER, Mark, Robert
    • A61K6/083A61L24/12C03C3/04
    • A61L24/12A61L27/10A61L2430/02C03C3/062C03C4/0007
    • A particulate glass for a synthetic bone (including dental) graft includes ZnO, SrO, and may include NaO. The glass promotes cellular metabolism, and upon implantation in living bone tissue induces bone growth at their surface. The ZnO and SrO respectively degrade to provide Zn 2+ and Sr 2+ ions respectively. The ions released by the glass provide anti-bacterial effects; improved bone formation in place of diseased tissue; inhibition of bone resorption; and radiopacity. There is excellent synergy between the SrO, ZnO, and NaO. The Sr 2+ ions have better bone formation effects than the Zn 2+ ions, but an anti-bacterial effect which is not as good. Choice of relative proportions of ZnO and SrO combined with the choice of NaO concentration to set the resorption rate allow optimisation. NaO there is control of the degradation rate of the graft; a feature which is advantageous in tailoring the grafts to specific patients and applications. Additionally the sodium (Na) in the glass imparts water solubility, allowing glasses to degrade to their ionic components.
    • 用于合成骨(包括牙科)移植物的颗粒状玻璃包括ZnO,SrO,并且可以包括NaO。 玻璃促进细胞代谢,并且植入活体骨组织后,在其表面诱导骨生长。 ZnO和SrO分别降解以分别提供Zn 2+和Sr 2+ 2+。 由玻璃释放的离子提供抗菌作用; 改善骨形成代替病变组织; 抑制骨吸收; 和不透射线。 SrO,ZnO和NaO之间具有良好的协同作用。 Sr 2+离子具有比Zn 2+ 2+离子更好的骨形成效果,但是抗菌效果不如那么好。 选择ZnO和SrO的相对比例结合选择NaO浓度来设定吸收速率允许优化。 NaO有控制移植物的降解速率; 这有利于将移植物定制到特定患者和应用中。 此外,玻璃中的钠(Na)赋予水溶性,允许玻璃降解成其离子组分。
    • 44. 发明申请
    • A MEDICAL DEVICE AND ITS USE
    • 医疗设备及其使用
    • WO2006048499A1
    • 2006-05-11
    • PCT/FI2005/000468
    • 2005-11-02
    • VIVOXID OYJÄRVELÄINEN, HannuLAATO, MattiSALONEN, JukkaVEDEL, Erik
    • JÄRVELÄINEN, HannuLAATO, MattiSALONEN, JukkaVEDEL, Erik
    • C03C4/00C03C3/076A61L15/18A61L15/44A61K33/00A61P17/02
    • A61L15/18A61K9/0024A61K9/1611A61L27/10C03C3/078C03C4/0007C03C4/0014
    • The invention relates to a medical device comprising non-sintered bioactive glass particles or fibres having a diameter in the range 5 - 100 µm, bioactive glass comprising SiO 2 , Na 2 O, CaO, K 2 O, MgO, B 2 O 3 and P 2 O 5 , wherein the amount of SiO 2 is 50-65 wt-% of the final total weight, Na 2 O is 5-26 wt-% of the final total weight, CaO is 10-25 wt-% of the final total weight, K 2 O is 0-15 wt-% of the final total weight, MgO is 0-6 wt-% of the final total weight, B 2 O 3 is 0-4 wt-% of the final total weight, and P 2 O 5 is 0-4 wt-% of the final total weight, provided that the total amount of Na 2 O and K 2 O is 10-30 wt-% of the final total weight. The device is essentially drug free. The invention also relates to the use of said composition for treating lesions associated with compromised or poor vascularisation and for preventing avascular fibrosis.
    • 本发明涉及包含直径在5-100μm范围内的非烧结生物活性玻璃颗粒或纤维的医疗装置,包含SiO 2,Na 2 O 2的生物活性玻璃 ,CaO,K 2 O,MgO,B 2 O 3和P 2 O 5, / SUB>,其中SiO 2的量为最终总重量的50-65重量%,Na 2 O 2为最终总重量的5-26重量% 总重量,CaO为最终总重量的10-25重量%,K 2 O 2为最终总重量的0-15重量%,MgO为0-6重量% 最终总重量,B 2 O 3 O 3是最终总重量的0-4重量%,P 2 O 5 如果Na 2 O 2和K 2 O 2的总量为10-30重量%,则其最终总重量为0-4重量% 最终总重量的百分比。 该装置基本上是无毒的。 本发明还涉及所述组合物用于治疗与损伤或差的血管形成相关的损伤和用于预防无血管纤维化的用途。
    • 50. 发明申请
    • FOAMED SOL-GEL AND METHOD OF MANUFACTURING THE SAME
    • 泡沫溶胶凝胶及其制造方法
    • WO2002096391A1
    • 2002-12-05
    • PCT/US2002/016319
    • 2002-05-24
    • IMPERIAL COLLEGE INNOVATIONSSEPULVEDA, PilarHENCH, Larry, L.
    • SEPULVEDA, PilarHENCH, Larry, L.
    • A61K9/14
    • C03C11/00A61L27/10A61L27/52A61L27/56C03C1/006C03C3/06C03C3/078C03C3/097C03C4/0007C03C4/0035
    • A process for making foamed glasses and ceramics from sol-gels is disclosed. The method includes preparing a mixture of reactants capable of forming a sol-gel with addition of a catalyst to control the condensation stage followed by foaming using vigorous agitation in the presence of surfactants. The gelled bodies are aged, dried, and thermally stabilized to obtain a consolidated macroporous material. The resulting structure comprises a three-dimensional network of spherical open pores that are thoroughly interconnected. The process may involve sol-gel systems using a mixture of metal alkoxides, and may produce glasses in unary systems (SiO 2 ), binary systems (70% mol SiO 2 -30% mol CaO), and ternary systems (60% mol SiO 2 , 36% mol CaO, 4% mol P 2 O 5 ). The macroporous material has pores in the 10-500 µm range and has potential for use as matrix in tissue engineering, in bone repair, and in organ regeneration.
    • 公开了一种由溶胶凝胶制造泡沫玻璃和陶瓷的方法。 该方法包括制备能够形成溶胶 - 凝胶的反应物的混合物,加入催化剂以控制缩合阶段,然后在表面活性剂存在下,通过剧烈搅拌进行发泡。 凝胶体老化,干燥和热稳定以获得固结的大孔材料。 所得到的结构包括完全相互连接的球形开放孔的三维网络。 该方法可以包括使用金属醇盐的混合物的溶胶 - 凝胶体系,并且可以在一元系统(SiO 2),二元体系(70%摩尔SiO 2 -30%摩尔CaO)和三元体系(60%摩尔SiO 2,36 %mol CaO,4mol%P 2 O 5)。 大孔材料具有10-500μm范围内的孔隙,并且可用作组织工程,骨修复和器官再生中的基质。