发明授权
- 专利标题: Transducer apparatus for intravascular blood flow measurement
- 专利标题(中): 用于血管内血流测量的传感器装置
-
申请号: US12384412申请日: 2009-04-03
-
公开(公告)号: US07902722B2公开(公告)日: 2011-03-08
- 发明人: David Vilkomerson
- 申请人: David Vilkomerson
- 申请人地址: US NJ Princeton
- 专利权人: DVX, LLC
- 当前专利权人: DVX, LLC
- 当前专利权人地址: US NJ Princeton
- 代理机构: Plevy & Keene LLP
- 主分类号: H04R17/00
- IPC分类号: H04R17/00 ; H01L41/08 ; A61B8/14
摘要:
A dual spiral transducer and method of manufacture of same is disclosed. In one aspect, the transducer comprises a central rod, a first spiral piezoelectric electrode wrapped around a circumference of the rod, the electrode being advanced around the rod at a determined angle determined based on a length of a single complete turn around the rod and a diameter of the rod and a second spiral piezoelectric electrode wrapped around the circumference of the rod, the second spiral electrode being electrically isolated, and offset, from the first spiral electrode by a known distance. A second set of spiral electrodes can be integrated into the structure so that both transmission and reception of signals is feasible.
公开/授权文献
信息查询