Patent ID: 7699850

Claim:
An apparatus for penetrating a bone marrow comprising: a housing defined in part by a handle sized and contoured to fit the hand of an operator; a penetrator assembly, comprising an inner trocar releasably engaged with an outer penetrator, operable to drill into a bone and to penetrate the associated bone marrow; the outer penetrator comprising a cannula; the inner trocar comprising a stylet wherein the stylet is operable to be inserted into the cannula of the outer penetrator; the outer penetrator further comprising a flange operable to stabilize the penetrator assembly against the skin at an insertion site; a flange groove, disposed on the flange, operable to engage a penetrator cover; a portion of a drill shaft extending from the housing; a connector receptacle and a connector operable to releasably attach the penetrator assembly to the portion of the drill shaft extending from the housing; a magnetic disc included with the connector, the magnetic disc operable to releasably attach the connector receptacle and the connector with each other; the drill shaft connected to a reduction gear assembly disposed within the housing; the reduction gear assembly operable to engage and rotate the drill shaft; a motor operable to engage the reduction gear assembly and drive the penetrator assembly into the bone marrow by rotation of the drill shaft; and a power supply and associated circuitry operable to power the motor.