公开(公告)号：EP0446932A3

公开(公告)日：1992-03-04

申请号：EP91103970.9

申请日：1991-03-14

申请人： ADVANCED CARDIOVASCULAR SYSTEMS, INC.

发明人： Tacklind, Christopher A. ,  Sun, Vae E. ,  Au, Nelson S. ,  Karshmer, David L.

IPC分类号： A61M25/10

CPC分类号： A61M25/10181 ,  A61M25/10182 ,  A61M25/10185 ,  A61M25/10187

摘要： The present invention is a fluid injecting device (10). It is comprised of an elongated housing (12) having an inner bore (13) and a piston (16) slidably disposed therein. Attached to the piston (16) is an elongated piston rod (18) one end of which extends out of the housing (12). The rod (18) has a threaded intermediate section which engages a plurality of opposed threaded members. With this construction longitudinal movement of the piston (16) within the bore (13) is effected by rotating the piston rod (18). The invention also includes means to move the opposed threaded members to a second position spaced away from the piston rod (18) and disengaged therefrom. In this fashion longitudinal movement of the piston (16) within the bore (13) is effected by pushing or pulling on the piston rod (18).

公开(公告)号：EP0446932A2

公开(公告)日：1991-09-18

申请号：EP91103970.9

申请日：1991-03-14

申请人： ADVANCED CARDIOVASCULAR SYSTEMS, INC.

发明人： Tacklind, Christopher A. ,  Sun, Vae E. ,  Au, Nelson S. ,  Karshmer, David L.

IPC分类号： A61M25/10

CPC分类号： A61M25/10181 ,  A61M25/10182 ,  A61M25/10185 ,  A61M25/10187

摘要： The present invention is a fluid injecting device (10). It is comprised of an elongated housing (12) having an inner bore (13) and a piston (16) slidably disposed therein. Attached to the piston (16) is an elongated piston rod (18) one end of which extends out of the housing (12). The rod (18) has a threaded intermediate section which engages a plurality of opposed threaded members. With this construction longitudinal movement of the piston (16) within the bore (13) is effected by rotating the piston rod (18). The invention also includes means to move the opposed threaded members to a second position spaced away from the piston rod (18) and disengaged therefrom. In this fashion longitudinal movement of the piston (16) within the bore (13) is effected by pushing or pulling on the piston rod (18).

摘要翻译： 本发明是一种流体注入装置（10）。 它包括具有内孔（13）和可滑动地设置在其中的活塞（16）的细长壳体（12）。 连接到活塞（16）的是细长的活塞杆（18），其一端延伸出壳体（12）。 杆（18）具有接合多个相对的螺纹构件的螺纹中间部分。 通过旋转活塞杆（18）来实现活塞（16）在孔（13）内的这种构造纵向运动。 本发明还包括将相对的螺纹构件移动到与活塞杆（18）间隔开并与其分离的第二位置的装置。 在这种方式中，活塞（16）在孔（13）内的纵向运动通过推动或拉动活塞杆（18）来实现。