Apparatus and method to access bone marrow
AssigneeVidacare Corporation
InventorLarry J. Miller
Life of this patent
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Abstract
An apparatus and method for penetrating bone marrow is provided. The apparatus may include a housing such as a handheld body, a penetrator assembly, a connector that releasably attaches the penetrator assembly to a drill shaft, a gear mechanism, a motor and a power supply and associated circuitry operable to power the motor. The penetrator assembly may include a removable inner trocar and an outer penetrator or needle. It may also include a grooved trocar that allows bone chips to be expelled as the apparatus is inserted into bone marrow. Various connectors are provided to attach the penetrator assembly to the drill shaft.
Claims15
A penetrator assembly operable to provide access to a bone marrow comprising:
- an outer penetrator and a removable inner trocar including a tip operable to penetrate the bone marrow;
- the removable inner trocar comprising:
- a first connector operable to releasably attach the penetrator assembly to a powered apparatus;
- and a handle includes a surface with a series of discs formed along a longitudinal axis of the trocar that allows a user to grasp and manipulate the inner trocar;
- and the outer penetrator comprising:
- a second connector operable to releasably engage the outer penetrator with either (i) the removable inner trocar such that the outer penetrator and removable inner trocar can be rotated into a bone together as a unit, or (ii) a source of fluids such that fluid can be delivered to a cannula portion of the outer penetrator;
- and a flange operable to engage an insertion site proximate the bone marrow, wherein the flange comprises at least one circular groove operable to removably receive a needle cover.
A penetrator assembly operable to provide access to a bone marrow comprising:
- an outer penetrator and a removable inner trocar including a tip operable to penetrate the bone marrow;
- the inner trocar having a handle includes a surface with a series of discs formed along a longitudinal axis of the trocar that allows a user to grasp and manipulate the assembly;
- the outer penetrator having a flange operable to engage an insertion site proximate the bone marrow, wherein the flange comprises at least one circular groove operable to removably receive a needle cover;
- and a first connector operable to releasably attach the penetrator assembly to a power drill;
- the outer penetrator includes a cutting tip with a planar surface, the removable inner trocar includes a cutting tip with a planar surface, and the inner trocar is configured to be coupled to the outer penetrator such that the planar surface of the inner trocar is coplanar with the planar surface of the outer penetrator.
Dependencies are inferred from the claim text.