A device for magnetizing a tissue-penetrating medical device is disclosedincluding a housing having a proximal portionand a distal portion； a magnetic field generator contained within the distalportion of the housing and a tissue penetrating subassemblyincluding a hub and a tissue penetrating medical device having a proximal endand a distal end. The hub is detachably connected tothe distal portion of the housing and the proximal end of tissue penetratingmedical device extends proximally from the hub such thatthe proximal end of the tissue penetrating medical device is exposed to themagnetic field to magnetize the distal end of the tissuepenetrating medical device. Methods of magnetizing tissue-penetrating medicaldevices are also disclosed.
