Patent ID: 8050742

Claim:
A biopsy device comprising: a marker deployer having an axially extending internal lumen; and at least one marker disposed within the internal lumen of the deployer, wherein the marker comprises: a marker body having an axial length LT, and wherein the marker body comprises: a first marker portion having a length L 1 and a width D 1 , a second marker portion having a length L 2 and width D 2 , and a third marker portion, wherein D 2 is greater than D 1 , and wherein LT/L 2 is at least about 1.5, wherein the first marker portion and the second marker portion together define a T shape, wherein the second marker portion is disposed between the first and third marker portions, wherein the first and third marker portions are configured to be substantially free of engagement with the internal lumen of the deployer while the marker is within the internal lumen.