Heinz-Michael Hein;Stephan Korner;Irio Giuseppe Calasso;Rainer Jaeggi;Emad Sarofim;Patrick Griss;Reto Abt
发明人:
Heinz-Michael Hein,Reto Abt,Stephan Korner,Irio Giuseppe Calasso,Emad Sarofim,Patrick Griss,Rainer Jaeggi
申请号：
US12901290
公开号：
US08636675B2
申请日:
2010.10.08
申请国别(地区):
US
年份:
2014
代理人:
摘要：
The present invention provides a method and a device for piercing a body part and determining whether a sufficient volume of blood has been withdrawn. A lancing element is rapidly inserted into a body part in a forward phase and retracted quickly to a lesser puncturing depth. Subsequently, the lancing element is retracted slower than during the first retraction movement and the distance retracted during the second retraction is shorter than the first retraction movement. During the second retraction movement, body fluid is collected in a collection phase by a capillary structure of the lancing element. Contact between the lancing element and the body fluid is detected after the forward phase at the beginning and the end of a waiting period.
