Patent ID: 8852119

Claim:
A bone marrow harvesting device comprising: a bone marrow needle including: a needle shaft that is elongate along a central axis, the needle shaft including a shaft body, the needle shaft defining an aspiration channel that extends through the shaft body along the central axis, wherein the shaft body includes a flexible portion defining a single continuous groove that extends into the shaft body, the single groove extending along a substantially helical path along a length of the shaft body, and the needle shaft defines a neck that is recessed with respect to the flexible portion and the neck that is recessed defining an intake port in fluid communication with the aspiration channel, such that the intake port extends through the recessed neck; a tip that extends distally from the needle shaft; and a non-elastomeric overcoat that extends over the flexible portion and covers at least a portion of the groove; and a trocar including a trocar handle and a cannulated trocar shaft that extends from the trocar handle, the cannulated shaft configured to slidingly receive at least a portion of the needle shaft.