Bone marrow aspiration and trephine biopsy single needle assembly

A bone marrow aspiration and trephine biopsy needle assembly comprising:

• a hollow needle for obtaining a bone marrow aspiration and a solid trephine biopsy specimen, wherein the hollow needle having a proximal end and a distal end, a handle attached to the proximal end of the hollow needle;
• a distal cutting end of the hollow needle provides a frustoconical transition between the proximal end and the distal end of the hollow needle;
• that forms an internal shoulder configured to retain the solid trephine biopsy specimen, and wherein the hollow needle further comprises one or more side holes located proximally to the distal cutting end;
• wherein the distal cutting end has one or more external serrations and one or more sharp cutting facets circumferentially around the distal cutting end;
• a cannulated trocar having an internal lumen extending therethrough, the cannulated trocar being removably inserted into the hollow needle from the proximal end of the hollow needle, so that a distal end of the trocar projects from the distal end of the needle, and wherein the one or more side holes are configured to provide a fluid pathway for lateral aspiration from a bone marrow space into the internal lumen of the cannulated trocar;
• and a knob attached to a proximal end of the trocar;
• wherein the knob has a connector enabled to attach a luer lock cap;
• and wherein the bone marrow aspiration and solid trephine biopsy specimens are configured to be obtained with a single insertion of said biopsy needle assembly.