Apparatus and method to access bone marrow
Penetrator assemblies that include an outer penetrator and a removable inner trocar. In some of the penetrator assemblies, the removable inner trocar has a handle including a surface with a series of discs formed along a longitudinal axis, and the outer penetrator has a flange operable to engage an insertion site proximate the bone marrow. Some of the penetrator assemblies include a connector having a recess extending toward the cutting tip and through which a longitudinal axis of the outer penetrator extends, the recess configured to receive a portion of a shaft to enable rotation of the penetrator assembly by a powered apparatus or power drill.
1. A penetrator assembly operable to provide access to a bone marrow comprising:
an outer penetrator and a removable inner trocar including a cutting tip operable to penetrate the bone marrow;
a first connector operable to releasably attach the penetrator assembly to a powered apparatus;
the removable inner trocar having a handle;
the handle including a surface with a series of discs formed along a longitudinal axis of the removable inner trocar that allows a user to grasp and manipulate the removable inner trocar;
the outer penetrator having a second connector operable to releasably engage the removable inner trocar with the outer penetrator; and
the outer penetrator having a flange operable to engage an insertion site proximate the bone marrow.
2. The penetrator assembly of claim 1 wherein the second connector comprises a luer lock connector operable for attachment to an adapter.
3. The penetrator assembly of claim 1 wherein the second connector comprises a luer lock connector operable for attachment to a right angle connector.
4. The penetrator assembly of claim 1 wherein the second connector comprises a luer lock connector operable for attachment to an intravenous tubing.
5. The penetrator assembly of claim 1 wherein the second connector comprises a luer lock connector operable for attachment to a syringe.
6. The penetrator assembly of claim 1 wherein the flange comprises at least one circular groove operable to articulate with a needle cover.
7. The penetrator assembly of claim 1 wherein the powered apparatus comprises a powered drill.
8. The penetrator assembly of claim 1 further comprising:
a first connecting piece attached to the outer penetrator;
a second connecting piece attached to the removable inner trocar; and
the first connecting piece operable to releasably engage the second connecting piece when the inner trocar is disposed within the outer penetrator.
9. A penetrator assembly operable to provide access to bone marrow of a bone comprising:
an outer penetrator and a removable inner trocar including a cutting tip operable to penetrate the bone and the associated bone marrow; and
a first connector operable to releasably attach the penetrator assembly to a powered apparatus, a proximal end of the first connector having a recess extending toward the cutting tip and through which a longitudinal axis of the outer penetrator extends, the recess configured to receive a portion of a shaft to enable rotation of the penetrator assembly by the powered apparatus;
the first connector further comprising a magnetic disc configured to magnetically resist removal of the shaft from the recess.
10. A penetrator assembly operable to provide access to a bone marrow comprising:
an outer penetrator and a removable inner trocar including a cutting tip operable to penetrate the bone marrow;
the removable inner trocar having a handle operable to allow a user to grasp and manipulate the inner trocar;
the outer penetrator having a flange operable to engage an insertion site proximate the bone marrow; and
a first connector operable to releasably attach the penetrator assembly to a power drill, a proximal end of the first connector having a recess extending toward the cutting tip and through which a longitudinal axis of the outer penetrator extends, the recess configured to receive a portion of a shaft to enable rotation of the penetrator assembly by the power drill.
11. The penetrator assembly of claim 10 further comprising a second connector operable to releasably engage the removable inner trocar with the outer penetrator.
12. The penetrator assembly of claim 11 wherein the second connector further comprises a luer lock connector.
13. The penetrator assembly of claim 10 further comprising the outer penetrator operable to connect to a source of intravenous fluids or medication using a tubular connector.
14. The penetrator assembly of claim 10 further comprising a groove operable to receive a plastic cover therein.
15. The penetrator assembly of claim 10 further comprising a penetrator shield operable to prevent inadvertent engagement and to preserve sterility.