Intraosseous device and methods for accessing bone marrow in the sternum and other target areas
First Claim
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1. An apparatus for controlling the depth of penetration of an intraosseous device into a sternal bone and associated bone marrow comprising:
- an outer penetrator having a first end and a second end;
the second end of the outer penetrator operable to penetrate the sternal bone and associated bone marrow;
a hub having a first end and a second end;
a flange disposed at the second end of the hub, the flange extending radially outward from the hub and configured to be supported by a skin surface of a patient to stabilize the intraosseous device;
the first end of the outer penetrator disposed in the hub;
the second end of the outer penetrator extending from the flange;
a collar having an elongated and hollow configuration compatible with engaging the outside diameter of the outer penetrator;
the collar extending from the flange and disposed around a portion of the outer penetrator;
the collar having a first end disposed toward the hub and a second end extending at a selected distance from the flange; and
where the distance between the second end of the collar and the second end of the outer penetrator is non-adjustably fixed to control the depth of penetration of the intraosseous device into the sternal bone and associated bone marrow.
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Abstract
Apparatus and methods are provided to access bone marrow at various target areas. Such apparatus may include an intraosseous device operable to penetrate bone at a selected target area and a depth limiter operable to control depth of penetration of the intraosseous device into bone and associated bone marrow. A manual driver and a guide may be included to optimize optimum insertion of the intraosseous device at a selected insertion site on a sternum.
416 Citations
17 Claims
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1. An apparatus for controlling the depth of penetration of an intraosseous device into a sternal bone and associated bone marrow comprising:
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an outer penetrator having a first end and a second end; the second end of the outer penetrator operable to penetrate the sternal bone and associated bone marrow; a hub having a first end and a second end; a flange disposed at the second end of the hub, the flange extending radially outward from the hub and configured to be supported by a skin surface of a patient to stabilize the intraosseous device; the first end of the outer penetrator disposed in the hub; the second end of the outer penetrator extending from the flange; a collar having an elongated and hollow configuration compatible with engaging the outside diameter of the outer penetrator; the collar extending from the flange and disposed around a portion of the outer penetrator; the collar having a first end disposed toward the hub and a second end extending at a selected distance from the flange; and where the distance between the second end of the collar and the second end of the outer penetrator is non-adjustably fixed to control the depth of penetration of the intraosseous device into the sternal bone and associated bone marrow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17)
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12. An apparatus for controlling the depth of penetration of an intraosseous device into a sternal bone and associated bone marrow comprising:
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an outer penetrator having a first end and a second end; the second end of the outer penetrator operable to penetrate the sternal bone and associated bone marrow; a hub having a first end and a second end; a flange disposed at the second end of the hub, the flange extending radially outward from the hub and configured to be supported by a skin surface of a patient to stabilize the intraosseous device; the first end of the outer penetrator disposed in the hub; the second end of the outer penetrator extending from the flange; a collar having an elongated and hollow configuration compatible with engaging the outside diameter of the outer penetrator; the collar extending from the flange and disposed around a portion of the outer penetrator; the collar having a first end disposed toward the hub and a second end extending at a selected distance from the flange; and the distance between the second end of the collar and the second end of the outer penetrator controlling the depth of penetration of the intraosseous device into the sternal bone and associated bone marrow; and wherein the spacing between the second end of the hub and the second end of the collar is approximately the average thickness of skin, muscle and other soft tissue covering the sternal bone.
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14. An apparatus for controlling the depth of penetration of an intraosseous device into a sternal bone and associated bone marrow comprising:
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an outer penetrator having a first end and a second end; the second end of the outer penetrator operable to penetrate the sternal bone and associated bone marrow; a hub having a first end and a second end; a flange disposed at the second end of the hub, the flange extending radially outward from the hub and configured to be supported by a skin surface of a patient to stabilize the intraosseous device; the first end of the outer penetrator disposed in the hub; the second end of the outer penetrator extending from the flange; a collar having an elongated and hollow configuration compatible with engaging the outside diameter of the outer penetrator; the collar extending from the flange and disposed around a portion of the outer penetrator; the collar having a first end disposed toward the hub and a second end extending at a selected distance from the flange; and the distance between the second end of the collar and the second end of the outer penetrator controlling the depth of penetration of the intraosseous device into the sternal bone and associated bone marrow; wherein the spacing between the second end of the hub and the second end of the collar is variable; and wherein the hub further comprises; a first segment having a first thread and a second segment having a second thread; the first segment and the second segment operable to being rotated with respect to each other; and the first thread and the second thread having matching thread profiles operable to engage with one another upon rotation of the first segment with respect to the second segment whereby rotation of the first segment with respect to the second segment varies the spacing between the second end of the hub and the second end of the collar.
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16. An apparatus for controlling the depth of penetration of an intraosseous device into a sternal bone and associated bone marrow comprising:
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an outer penetrator having a first end and a second end; the second end of the outer penetrator operable to penetrate the sternal bone and associated bone marrow; a hub having a first end and a second end; a flange disposed at the second end of the hub, the flange extending radially outward from the hub and configured to be supported by a skin surface of a patient to stabilize the intraosseous device; the first end of the outer penetrator disposed in the hub; the second end of the outer penetrator extending from the flange; a collar having an elongated and hollow configuration compatible with engaging the outside diameter of the outer penetrator; the collar extending from the flange and disposed around a portion of the outer penetrator; the collar having a first end disposed toward the hub and a second end extending at a selected distance from the flange; and the distance between the second end of the collar and the second end of the outer penetrator controlling the depth of penetration of the intraosseous device into the sternal bone and associated bone marrow; and further comprising at least one blade disposed in at least one slot adjacent to the second end of the collar.
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Specification