Full core biopsy device

A biopsy device comprising:

• an outer needle hub;
• an outer needle coupled at a proximal end to the outer needle hub, the outer needle defining an outer diameter and an inner diameter, and including:
• an outer needle tip at an opposite distal end;
• a tissue slicing feature defined at said tip configured for cutting tissue;
• an inner surface defining a lumen through said outer needle for receiving tissue therein, said inner surface including a countersink extending proximally from said tip to said inner diameter at a depth from said tip;
• and
• at least one opening defined in said outer needle between said countersink and said proximal end;
• an inner needle hub;
• and
• an inner needle coupled at a proximal end to said inner needle hub, the inner needle including an inner needle tip at an opposite distal end, said inner needle coaxially disposed within the outer needle,
• wherein said outer diameter has a dimension from 0.035-0.065 inches, said inner diameter has a dimension sized relative to the dimension of said outer diameter to provide a nominal wall thickness of 0.003-0.006 inches, and said depth of said countersink has a dimension of 0.08-0.10 inches.