Constant-Torque Intraosseous Access Devices and Methods Thereof

Abstract: an intraosseous access device can include a constant-torque spring assembly disposed in a housing, a drive shaft extending from the housing, and an intraosseous needle coupled to the drive shaft configured to provide intraosseous access to a medullary cavity of a patient. a method of using an intraosseous access device can include inserting a distal end of the intraosseous needle through skin at an insertion site of a patient and applying a contacting force to a bone beneath the insertion site with the distal end of the intraosseous needle. the contacting force can initiate a winding of a ribbon of the constant-torque spring assembly from an output spool onto a storage spool, thereby initiating drilling rotation of the intraosseous needle. the method can further include drilling through the bone until the intraosseous needle enters a medullary cavity of the patient.

Inventor(s): Daniel Pett, Daniel B. Blanchard, Eric W. Lindekugel, Joe Spataro, Ralph Sonderegger

CPC Classification: A61B17/3472 ({for bones, e.g. intraosseus injections})

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