专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP4248626B2 No seal blood pump 失效
标题翻译：空值
公开(公告)号：JP4248626B2
公开(公告)日：2009-04-02
申请号：JP20598598
申请日：1998-07-22
申请人：ハートウェア・インコーポレーテッド
发明人：リチャード・ケイ・ワンプラー
IPC分类号： A61M1/10 , F04D29/046 , F04D13/06 , F04D29/048 , F04D29/08 , F16C39/06 , H02K5/128 , H02K7/09 , H02K7/14 , H02K41/03
CPC分类号： H02K5/1285 , A61M1/101 , A61M1/1012 , A61M1/1013 , A61M1/1015 , A61M1/1017 , A61M1/1031 , A61M1/122 , A61M1/125 , F16C17/08 , F16C39/063 , F16C2316/18 , H02K7/09 , H02K7/14 , H02K41/03 , Y10S415/90
摘要： An implantable rotary sealless blood pump (11) is provided. The pump (11) includes a housing (12) having an inlet tube (13) on one end and an impeller casing (14) on the other end. A rotor (17) is mounted for rotation within the housing (12), with the rotor (17) having an elongated shaft portion (18) and an impeller (19) attached to the shaft portion (18). The impeller (19) is located within the impeller casing (14). Radial magnetic bearings (28,29) are carried by the shaft portion (18) and radial magnetic bearings (23,24) are carried by the housing (12) for maintaining the shaft portion (18) of the rotor (17) within the inlet tube (13) of the housing (12). A rotor motor (53) includes a plurality of permanent magnets (54) carried by the impeller (19) and a motor stator (56) including an electrically conductive coil (57) located within the housing (12). A ring of back iron (58) is carried by the impeller casing (14) to aid in completing a flux return path for the permanent magnets (54). A plurality of hydrodynamic thrust bearings are located outside of the axis of rotation of the rotor (17). The impeller (19) uses large axially thick blade sectors (49) with narrow blood channels (51) extending through the impeller (19), to minimize hemolysis and to increase the working surface of the blades (49).
摘要翻译：提供可植入式旋转无密封血液泵（11）。泵（11）包括在一端具有入口管（13）并且在另一端具有叶轮壳体（14）的壳体（12）。转子（17）安装成用于在壳体（12）内旋转，其中转子（17）具有细长轴部分（18）和附接到轴部分（18）的叶轮（19）。叶轮（19）位于叶轮壳体（14）内。径向磁轴承（28,29）由轴部分（18）承载，径向磁轴承（23,24）由壳体（12）承载，用于将转子（17）的轴部分（18）保持在内壳体（12）的入口管（13）。转子电动机（53）包括由叶轮（19）承载的多个永磁体（54）和包括位于壳体（12）内的导电线圈（57）的电动机定子（56）。后轮（58）的环由所述叶轮壳体（14）承载，以帮助完成所述永磁体（54）的通量返回路径。多个流体动力推力轴承位于转子（17）的旋转轴线的外侧。叶轮（19）使用具有延伸穿过叶轮（19）的窄血液通道（51）的大的轴向厚度厚的叶片扇区（49），以最小化溶血并增加叶片（49）的工作表面。

IPRDB

热门服务

关于我们

友情链接

联系方式