Intraosseous access device and locator assembly
Inventors
Tierney, Morgan • Fominas, Aleksejus • TREXLER, Wade Kevin • HEINLY, Kurt Donald • ROWE, David Troy • HUHN, Stephan M.
Assignees
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Publication Number
US-12357324-B2
Publication Date
2025-07-15
Expiration Date
Abstract
An intraosseous access device for accessing an intraosseous space of a patient includes a manual driver and a sternal locator. The handle is connected to an inner penetrator hub, and an inner penetrator extends from the inner penetrator hub. An outer penetrator hub is releasably engaged to the inner penetrator hub. A protective cover is slidably coupled to the handle. The protective cover is operable to move from an extended position where the inner penetrator is covered, to a retracted position where the inner penetrator is exposed. The sternal locator includes a base; a collar extending from a first surface of the base for securing the intraosseous access device to restrict longitudinal separation of the intraosseous access device from the locator. The locator may be removed from the patient while the outer penetrator remains inserted in an intraosseous space of the patient.
Core Innovation
The disclosed invention relates to an apparatus for accessing an intraosseous space within a bone of a patient, including a penetrator assembly having a sharp penetrating end configured to penetrate the bone and associated bone marrow, and a manual driver coupled to the penetrator assembly to manually drive the penetrator assembly into the bone and associated bone marrow. The apparatus further includes a protective shield having a distal end and a proximal end that is slidably coupled to the handle and defines a longitudinal hollow passageway extending between the distal end and the proximal end.
The protective shield moves between an extended position and a retracted position. In the extended position, the sharp penetrating end is disposed within the longitudinal hollow passageway of the protective shield to provide sharps protection. In the retracted position, the sharp penetrating end is disposed outside the longitudinal hollow passageway of the protective shield to permit penetration of the penetrator assembly into the intraosseous space.
The penetrator assembly includes an outer penetrator defining a longitudinal hollow bore and an inner penetrator slidably receivable within the hollow bore of the outer penetrator. The described configuration is combined with a sternal locator having an alignment feature approximating the sternal notch, a collar with an annular through-hole for guiding the protective cover/penetrators, resilient locking tabs forming a depth stop against a skirt flange, and downward bone probes with pointed tips and grooves/notches that act as depth stops, with optional use of a stabilizer/adhesive dressing.
Claims Coverage
The independent claim covers the core apparatus for manual intraosseous access with a slidably moving protective shield that provides sharps protection in an extended position and permits penetration in a retracted position, and includes a penetrator assembly with an inner penetrator slidably receivable within an outer penetrator hollow bore. Dependent claims refine the protective shield structure/coupling and specify additional structural features of the penetrators and locator-related features described in the partial content.
Manual intraosseous access with slidably positioned sharps-protecting shield
An apparatus for accessing an intraosseous space within a bone of a patient including a manual driver operable to manually drive a penetrator assembly into bone and marrow, and a protective shield slidably coupled to the handle and defining a longitudinal hollow passageway, wherein the protective shield moves between an extended position providing sharps protection and a retracted position permitting penetration.
Outer and inner penetrators with inner slidably receivable within outer hollow bore
The penetrator assembly comprises an outer penetrator defining a longitudinal hollow bore and an inner penetrator slidably receivable within the hollow bore of the outer penetrator.
Protective shield positioned by resilient finger friction fit
At least two spaced-apart resilient fingers disposed along a circumference of the proximal end of the protective shield, wherein each resilient finger includes an outwardly protruding ridge configured to provide a friction fit within an internal recess of the driver to maintain the protective shield in a desired position.
Protective shield coupled to the driver with removability
The protective shield is removably coupled to the handle.
Protective shield distal end with blunt surface
A protective shield whose distal end includes a blunt surface operable to contact a patient's skin without cutting it.
Sternal locator with notch alignment and depth stops
A sternal locator comprising an alignment feature approximating the sternal notch, a collar with an annular through-hole, and resilient locking tabs forming a depth stop against a skirt flange, together with downward bone probes having pointed tips and circumferential grooves/notches that act as depth stops.
Overall, the claim set centers on a manual driver and penetrator assembly for intraosseous access combined with a protective shield that slides between extended sharps-protection and retracted penetration positions, with an outer penetrator hollow bore receiving an inner slidably received penetrator. Dependent refinements add protective-shield distal blunt skin-contact behavior, removable coupling to the handle, resilient-finger friction-fit positioning, and locator features for alignment and depth stopping via notch approximation and probe grooves/notches.
Stated Advantages
Documented Applications
No documented applications found
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