发明名称 |
ELECTROCARDIOGRAM NOISE REDUCTION |
摘要 |
PROBLEM TO BE SOLVED: To provide a catheterization system that includes an electrophysiologic (EP) catheter which has a lumen receiving an electrically conductive fluid delivered by a hydraulic line that is acted upon by a peristaltic pump.SOLUTION: The system advantageously avoids noise in intracardiac ECG signal recordings by using an electrical connection to short triboelectric charge carried by the conductive fluid in the hydraulic line to an existing analog ground in the system. In one embodiment, the electrical connection includes an electrically conductive wire housed in a control handle and configured to provide electrical connection between the fluid and a pin on a printed circuit board housed in the control handle that is electrically connected to the analog ground. In another embodiment, the electrical connection shorts the electrically conductive fluid proximal to the control handle of the catheter.SELECTED DRAWING: Figure 1 |
申请公布号 |
JP2016123869(A) |
申请公布日期 |
2016.07.11 |
申请号 |
JP20150255796 |
申请日期 |
2015.12.28 |
申请人 |
BIOSENSE WEBSTER (ISRAEL) LTD |
发明人 |
KRUTI SHAH;ALEXANDER LIFSHITZ;FANG ITZHAK |
分类号 |
A61B5/0492;A61B5/0408;A61B5/0428;A61B5/0478 |
主分类号 |
A61B5/0492 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|