Marieke Klee,Jacob Roger Haartsen,Judith Margreet Rensen
申请号：
US13321207
公开号：
US09155481B2
申请日:
2010.05.26
申请国别(地区):
US
年份:
2015
代理人:
摘要：
An apparatus for monitoring whether or not a distal end of a tube is positioned inside a blood vessel includes a heating element configured to heat the tube distal end, and a sensor arrangement configured to generate a measurement signal indicative for heat transferred by exterior of the distal end. The apparatus further includes a comparator configured to compare the measurement signal with a reference level. The reference level equals a value attained by the measurement signal in response to a minimum flow velocity in the blood vessel. Further, a system is configured to exchange a liquid with a mammal via a blood vessel. The system includes the apparatus having the tube.
