Patent ID: 8696598
Filing Date: 2014-04-15
Classification: A61B,A61M,G01K

Abstract:
1. A phlebotomy device comprising: a needle having a proximal end, a sharp distal end opposite the proximal end, and a lumen extending between the proximal end and the distal end; and an elongate sensor positioned at least partially in the lumen and connected to the needle, the sensor having a proximal end free from direct connection to the proximal end of the needle, a distal end opposite the proximal end, a first length measured between the proximal end and the distal end when the sensor is at a first temperature, and a second length longer than said first length when the sensor is at a second temperature higher than said first temperature so that the proximal end of the sensor moves to a more proximal position when subjected to said second temperature than when subjected to said first temperature.