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US 9,433,400 B2Granted
Manual intraosseous device
AssigneeVidacare Corporation
InventorLarry J. Miller
Life of this patent
Estimating the term…
Abstract
An apparatus for penetrating the bone marrow of a bone is provided. The apparatus includes a handle having a drive shaft, a connector having a first end operable to connect to a drive shaft and a second end operable to connect to a penetrator hub and a penetrator hub having a penetrator that accesses the bone marrow.
Claims9
A method of accessing bone marrow of a bone comprising:
- inserting a penetrator, defined in part by an outer cannula and an inner trocar, into the bone and associated bone marrow by a handle rotating a drive shaft and an attached connector, the connector releasably attached to a hub that is attached to the outer cannula, the hub defining a flange with a maximum transverse dimension that is greater than a maximum transverse dimension of the connector, the flange configured to contact skin adjacent the bone when the penetrator is inserted into a patient's bone, wherein the hub is attached to the outer cannula at least at a point along the flange;
- detaching the handle and connector from the hub while the outer cannula is disposed in the bone and associated bone marrow;
- and
- removing the trocar from the cannula to allow access to the bone marrow through the cannula,
- wherein the flange is in fixed relation to a first end of the outer cannula, the first end of the outer cannula configured to be inserted into the bone and bone marrow,
- wherein the first end of the outer cannula has a first plurality of cutting surfaces,
- wherein an end of the inner trocar proximate to the first end of the outer cannula comprises a second plurality of cutting surfaces,
- wherein the first plurality of cutting surfaces and the second plurality of cutting surfaces are configured to fit together to form a single drilling unit.
5 more elements
A method of accessing bone marrow of a bone comprising:
- releasably attaching a connector, a hub, and a penetrator with a handle operable to rotate the connector, hub, and penetrator, the penetrator including an outer cannula attached to the hub, and the connector releasably coupled to the hub via a Luer fitting that includes male threads formed on the hub;
- rotating the handle to rotate the connector and the penetrator to insert the penetrator into the bone and associated bone marrow;
- detaching the handle and the connector from the outer cannula when one end of the outer cannula is located at a desired position within the bone marrow;
- and
- connecting a tubing with the outer cannula via the Luer fitting to communicate fluid between the tubing and the bone marrow,
- wherein the connector is attached to an inner trocar,
- wherein the Luer fitting is configured to position the inner trocar at a predetermined position relative to the outer cannula,
- wherein the end of the outer cannula configured to be located at the desired position within the bone marrow has a first plurality of cutting surfaces,
- wherein an end of the inner trocar proximate to the end of the outer cannula configured to be located at the desired position within the bone marrow comprises a second plurality of cutting surfaces,
- wherein the first plurality of cutting surfaces and the second plurality of cutting surfaces are configured to fit together to form a single drilling unit.
7 more elements
Dependencies are inferred from the claim text.