Jon B. Newman,Robert N. Golden,Sarah L. Creasy,R. B. Hayes
申请号：
US15842685
公开号：
US20180116551A1
申请日:
2017.12.14
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A guidance system for assisting with the insertion of a needle into a patient body is disclosed. The guidance system utilizes ultrasound imaging or other suitable imaging technology. In one embodiment, the guidance system comprises an imaging device including a probe for producing an image of an internal body portion target, such as a vessel. One or more sensors are included with the probe. The sensors sense a detectable characteristic related to the needle, such as a magnetic field of a magnet included with the needle. The system includes a processor that uses data relating to the sensed characteristic to determine a 3-D position of the needle. The system includes a display for depicting the position of the needle. A needle assembly including a hub, cannula, and magnetic element is also disclosed, wherein the cannula is substantially non-magnetic so as to not distort the magnetic field of the magnetic element.
