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    • 8. 发明申请
    • MEDICAL ELECTRICAL LEAD HAVING A CRUSH RESISTANT LEAD BODY
    • 具有耐冲击导体身体的医用电线
    • WO1997049449A1
    • 1997-12-31
    • PCT/US1997010548
    • 1997-06-16
    • MEDTRONIC, INC.
    • MEDTRONIC, INC.SWOYER, John, M.McINTYRE, Peter, B.UPTON, James, E.HEBZYNSKI, Annette, M.LESSAR, Joseph, F.
    • A61N01/05
    • A61N1/056
    • A medical lead which has a connector assembly coupled to an electrode by a lead body, the lead body is designed so as to have greater resistance to crush fatigue in the area which is located between the rib and clavicle when implanted. In particular the lead body of the present invention features an insulative sheath (109) covering a coiled conductor. The coiled conductor has three sections, viz., proximal (120), intermediate (122) and distal (121) sections. The intermediate section has a different pitch as compared to proximal section (120) and distal section (121). In the preferred embodiment, intermediate section has a pitch of approximately 0.100 while proximal section has a pitch of approximately 0.025 and distal section has a pitch of approximately 0.025. Moreover, intermediate section has a length of approximately 10.4 inches while proximal section has a length of approximately 5.1 inches and distal section has a length of approximately 7.2 inches. In such a manner the lead of the present invention presents a coiled conductor having a greater pitch in the area in which crush fatigue between the clavicle and rib is likely to occur.
    • 一种医用引线,其具有通过引线体与电极耦合的连接器组件,所述引线体被设计成在植入时位于肋和锁骨之间的区域中具有较大的抗挤压疲劳性。 特别地,本发明的引线体具有覆盖线圈导体的绝缘护套(109)。 线圈导体具有三个部分,即近端(120),中间(122)和远端(121)部分。 中间部分与近端部分(120)和远端部分(121)相比具有不同的间距。 在优选实施例中,中间部分具有大约0.100的间距,而近侧部分具有大约0.025的间距,并且远侧部分具有大约0.025的节距。 此外,中间部分具有大约10.4英寸的长度,而近端部分具有大约5.1英寸的长度,并且远端部分具有大约7.2英寸的长度。 以这种方式,本发明的引线呈现在可能发生锁骨和肋骨之间的挤压疲劳的区域中具有较大间距的螺旋导体。
    • 9. 发明申请
    • MEDICAL ELECTRICAL LEAD
    • 医用电线
    • WO1995024942A1
    • 1995-09-21
    • PCT/US1995002824
    • 1995-03-06
    • MEDTRONIC, INC.
    • MEDTRONIC, INC.BREYEN, Mark, D.ISTEPHANOUS, Naim, S.KRASKA, Robert, E.LESSAR, Joseph, F.MILLER, Jennifer, P.
    • A61N01/05
    • A61N1/056
    • A medical electrical lead of the type which includes an electrode at a distal end of the lead, a connector at a proximal end of the lead and an elongated electrical conductor extending between the electrode and the connector. The conductor is comprised of a wire wound in a coil configuration with the wire comprised of a duplex stainless steel having a composition of at least 22 % chromium, 3 % molybdenum and 5 % nickel. Material of such composition has been found to have suitable conductivity for use with implantable pulse generators and suitable fatigue strength when used in endocardial lead placement. Moreover, such material has been found to pass tests intended to detect metal ion oxidation (MIO) in polymeric materials.
    • 一种医用电引线,其包括在引线的远端处的电极,在引线的近端处的连接器和在电极和连接器之间延伸的细长电导体。 该导体由卷绕成线圈构造的线组成,线由具有至少22%铬,3%钼和5%镍组成的双相不锈钢组成。 已经发现,这种组合物的材料具有适合的导电性,用于可植入的脉冲发生器,并且当用于心内膜引导放置时具有合适的疲劳强度。 此外,已经发现这种材料通过用于检测聚合物材料中的金属离子氧化(MIO)的测试。