公开(公告)号：US3712133A

公开(公告)日：1973-01-23

申请号：US3712133D

申请日：1970-07-24

Applicant: STATHAM INSTRUMENT INC

Inventor： WESTERSTEN A

IPC: A61B5/0265 ,  G01F1/58 ,  G01P5/08

CPC classification number: A61B5/0265 ,  G01F1/58

Abstract: An insulative hollow cylinder, whose internal bore is slightly larger than the external dimensions of the blood vessel on which it is to be mounted, has a longitudinal portion removed to form an access opening. A first magnetizing coil is formed about the exterior of the insulative cylinder and is looped to extend circumferentially about the cylinder at substantially 180* thereof. At each side of the first magnetizing coil there is provided at least one auxiliary winding whose field axis is directed through the blood vessel. The resultant magnetic field from the first magnetizing coil and auxiliary windings is highly uniform throughout the entire cross section of the blood vessel on which the probe is mounted.

Abstract translation: 一个绝缘的中空圆筒，其内孔略大于要安装在其上的血管的外部尺寸，具有除去纵向部分以形成进入口。 第一磁化线圈围绕绝缘圆筒的外部形成，并围绕圆柱体在其大致180°处周向延伸。 在第一磁化线圈的每一侧设有至少一个辅助绕组，其磁场轴线通过血管。 来自第一磁化线圈和辅助绕组的合成磁场在其上安装探针的血管的整个横截面上是高度均匀的。