Powered drivers, intraosseous devices and methods to access bone marrow

Abstract

An apparatus for penetrating bone and accessing bone marrow is provided. The apparatus may include a penetrator assembly and a powered drill to penetrate the bone into the bone marrow. The penetrator assembly may include a trocar having a stylet. The penetrator assembly may also include an outer penetrator having a hollow cannula and a luer lock attachment. The powered drill may include a housing enclosing a motor and a power supply and associated circuitry. The powered drill may also include a connector receptacle for receiving a penetrator assembly connector of the penetrator assembly. The connector receptacle may releasably lock the penetrator assembly connector into place with the powered drill. The power supply may include a rechargeable battery within the housing for supplying power to the motor. A battery indicator may be provided to indicate a level of the battery.

What is claimed is: 
     
         1 . An apparatus for penetrating bone and accessing bone marrow, the apparatus comprising:
 a penetrator assembly operable to penetrate bone and bone marrow, the penetrator assembly comprising:
 a trocar including a stylet and a first connector, the first connector forming a first connecting piece at a first end of the first connector, and a penetrator assembly connector at a second end of the first connector opposite to the first end of the first connector; and 
 an outer penetrator including a hollow cannula and a second connector, the second connector forming a second connecting piece complementary to the first connecting piece on the first connector of the trocar, the hollow cannula configured to receive the stylet of the trocar, and the first connecting piece of the trocar configured to engage the second connecting piece of the outer penetrator; and 
   a powered drill having a housing defining a handle, the housing enclosing a motor and a power supply and associated circuitry to power the motor, the powered drill further including a switch connected to the power supply and operable to activate the motor to rotate the penetrator assembly when said penetrator assembly is releasably attached to the powered drill;   the powered drill further comprising a third connector, the third connector configured to connect to the penetrator assembly connector of the penetrator assembly, and the third connector further configured to releasably lock the penetrator assembly connector into place with the powered drill;   wherein the second connector of the outer penetrator is configured to connect to an intravenous tubing;   wherein the power supply comprises a battery disposed within the housing and configured to supply power to the motor; and   the powered drill further including a battery indicator operable to indicate a level of the battery.   
     
     
         2 . The apparatus according to  claim 1 , wherein the battery is a rechargeable battery, and wherein the handle further comprises a charging contact and associated charging circuitry operable to charge the rechargeable battery. 
     
     
         3 . The apparatus according to  claim 2 , wherein the battery indicator further comprises a plurality of lights operable to indicate a status of the rechargeable battery. 
     
     
         4 . The apparatus according to  claim 1 , wherein the battery indicator further comprises a plurality of lights operable to indicate a status of the battery. 
     
     
         5 . The apparatus according to  claim 1 , wherein the hollow cannula comprises a cutting tip, and the cutting tip of the hollow cannula and a tip of the stylet are operable to penetrate bone marrow as a single drilling unit. 
     
     
         6 . The apparatus according to  claim 5 , further comprising a magnetic connection to releasably lock the penetrator assembly connector into place with the powered drill. 
     
     
         7 . The apparatus according to  claim 5 , wherein the outer penetrator and the stylet are ground together as one unit during a manufacturing process. 
     
     
         8 . The apparatus according to  claim 5 , wherein the battery is a rechargeable battery, and the handle further comprises a charging contact and associated charging circuitry operable to charge the rechargeable battery. 
     
     
         9 . The apparatus according to  claim 8 , wherein the battery indicator further comprises a plurality of lights operable to indicate a status of the rechargeable battery. 
     
     
         10 . The apparatus according to  claim 5 , wherein the battery indicator further comprises a plurality of lights operable to indicate a status of the battery. 
     
     
         11 . The apparatus according to  claim 1 , further comprising a magnetic connection to releasably lock the penetrator assembly connector into place with the powered drill. 
     
     
         12 . The apparatus according to  claim 11 , wherein the outer penetrator further comprises a flange operable to abut skin of a patient during an insertion procedure for stabilizing the penetrator assembly. 
     
     
         13 . The apparatus according to  claim 11 , wherein trocar includes a magnetic disc operable to allow the magnetic connection between the penetrator assembly connector and the powered drill. 
     
     
         14 . The apparatus according to  claim 11 , wherein trocar includes a metal disc operable to allow the magnetic connection between the penetrator assembly connector and the powered drill. 
     
     
         15 . The apparatus according to  claim 1 , wherein the outer penetrator further comprises a flange operable to abut skin of a patient during an insertion procedure for stabilizing the penetrator assembly. 
     
     
         16 . The apparatus according to  claim 1 , wherein the battery is a rechargeable battery, and the handle further comprises a charging contact and associated charging circuitry operable to charge the rechargeable battery,
 wherein the battery indicator further comprises a plurality of lights operable to indicate a status of the rechargeable battery,   wherein the hollow cannula comprises a cutting tip, and the cutting tip of the hollow cannula and a tip of the stylet are operable to penetrate bone marrow as a single drilling unit, and   wherein the outer penetrator further comprises a flange operable to abut skin of a patient during an insertion procedure for stabilizing the penetrator assembly.   
     
     
         17 . The apparatus according to  claim 1 , wherein the battery is a rechargeable battery, and the handle further comprises a charging contact and associated charging circuitry operable to charge the rechargeable battery,
 wherein the battery indicator further comprises a plurality of lights operable to indicate a status of the rechargeable battery,   wherein the hollow cannula comprises a cutting tip, and the cutting tip of the hollow cannula and a tip of the stylet are operable to penetrate bone marrow as a single drilling unit, and   further comprising a magnetic connection to releasably lock the penetrator assembly connector into place with the powered drill.   
     
     
         18 . The apparatus according to  claim 1 , wherein the second connecting piece comprises a connecting piece locking mechanism configured to lock into position on the first connecting piece. 
     
     
         19 . The apparatus according to  claim 1 , wherein the switch is disposed on an outer surface of the housing and proximate to a first end of the housing on which the third connector is provided. 
     
     
         20 . The apparatus according to  claim 1 , wherein the penetrator assembly further includes a penetrator shield configured to shield a tip of the stylet of the trocar.