Apparatus and methods to harvest bone and bone marrow
First Claim
1. An intraosseous device comprising:
- an outer penetrator having a first end and a second end with a respective longitudinal bore extending between the first end and the second end of the outer penetrator, the first end of the outer penetrator operable to penetrate bone and associated bone marrow, the longitudinal bore of the outer penetrator including an enlarged inside diameter portion disposed adjacent to and extending from the first end of the outer penetrator, a reduced inside diameter portion extending from the second end of the outer penetrator towards the first end of the outer penetrator and spaced therefrom, and where a diameter of the enlarged inside diameter portion is greater than a diameter of the reduced inside diameter portion;
a trocar having a first end and a second end with a respective longitudinal bore extending from the first end of the trocar, the first end of the trocar operable to penetrate bone and associated bone marrow;
the trocar slidably disposed within the longitudinal bore of the outer penetrator;
the trocar split into a first segment and a second segment extending from the first end of the trocar;
the first segment and the second segment of the trocar operable to move between an open position and a closed position depending on a location of the trocar relative to the outer penetrator;
the first segment and the second segment of the trocar operable to grasp a sample of bone marrow therebetween;
respective tips formed on extreme ends of the first segment and the second segment;
a respective first, curved jaw extending from a tip of the first segment;
a respective second, curved jaw extending from a tip of the second segment; and
the first jaw and the second jaw cooperating with each other to securely grasp a sample of bone marrow therebetween when the trocar has moved the first segment and the second segment to the closed position.
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Accused Products
Abstract
An apparatus and method for harvesting bone and bone marrow are provided. The apparatus may include a driver operable to be releasably engaged with an intraosseous device. The intraosseous device may include a cannula having a first end operable to penetrate bone and bone marrow and to allow retrieval of portions of bone and/or bone marrow. The cannula may have a second end operable to be releasably engaged with bone marrow sampling equipment. The apparatus may include a removable trocar. The removable trocar may have an inner channel operable to convey portions of bone and/or bone marrow. The removable trocar may have an inner channel and a side port communicating with the inner channel. The removable trocar may have a first end operable to penetrate bone and bone marrow.
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Citations
20 Claims
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1. An intraosseous device comprising:
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an outer penetrator having a first end and a second end with a respective longitudinal bore extending between the first end and the second end of the outer penetrator, the first end of the outer penetrator operable to penetrate bone and associated bone marrow, the longitudinal bore of the outer penetrator including an enlarged inside diameter portion disposed adjacent to and extending from the first end of the outer penetrator, a reduced inside diameter portion extending from the second end of the outer penetrator towards the first end of the outer penetrator and spaced therefrom, and where a diameter of the enlarged inside diameter portion is greater than a diameter of the reduced inside diameter portion; a trocar having a first end and a second end with a respective longitudinal bore extending from the first end of the trocar, the first end of the trocar operable to penetrate bone and associated bone marrow; the trocar slidably disposed within the longitudinal bore of the outer penetrator;
the trocar split into a first segment and a second segment extending from the first end of the trocar;the first segment and the second segment of the trocar operable to move between an open position and a closed position depending on a location of the trocar relative to the outer penetrator; the first segment and the second segment of the trocar operable to grasp a sample of bone marrow therebetween; respective tips formed on extreme ends of the first segment and the second segment; a respective first, curved jaw extending from a tip of the first segment; a respective second, curved jaw extending from a tip of the second segment; and the first jaw and the second jaw cooperating with each other to securely grasp a sample of bone marrow therebetween when the trocar has moved the first segment and the second segment to the closed position. - View Dependent Claims (2)
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3. An intraosseous device comprising:
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an outer penetrator having a first end and a second end with a respective longitudinal bore extending between the first end and the second end of the outer penetrator, the first end of the outer penetrator operable to penetrate bone and associated bone marrow; a trocar slidably disposed within the longitudinal bore of the outer penetrator, the trocar having a first end and a second end with a respective longitudinal bore extending from the first end of the trocar and defining a specimen cavity, the first end of the trocar operable to penetrate bone and associated bone marrow, and the trocar including split ends defined in part by a first segment extending from the first end of the trocar and a second segment extending from the first end of the trocar; the longitudinal bore of the outer penetrator including an enlarged inside diameter portion disposed adjacent to and extending from the first end of the outer penetrator, a reduced inside diameter portion extending from the second end of the outer penetrator towards the first end of the outer penetrator, and a transition portion extending between the enlarged inside diameter portion and the reduced inside diameter portion, the first segment and the second segment of the trocar operable to move between an open position and a closed position depending on a location of the trocar relative to the outer penetrator; the first segment and the second segment of the trocar operable to grasp a sample of bone marrow therebetween. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An intraosseous device comprising:
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an outer penetrator having a first end and a second end with a respective longitudinal bore extending between the first end and the second end of the outer penetrator, the first end of the outer penetrator operable to penetrate bone and associated bone marrow, the longitudinal bore of the outer penetrator including an enlarged inside diameter portion and a reduced inside diameter portion, the enlarged inside diameter portion disposed adjacent to and extending from the first end of the outer penetrator, and the reduced inside diameter portion extending from the second end of the outer penetrator towards the first end of the outer penetrator; and a trocar slidably disposed within the longitudinal bore of the outer penetrator, the trocar having a first end and a second end, the first end of the trocar operable to penetrate bone and associated bone marrow, the trocar including a first segment and a second segment extending from the first end of the trocar, the first and second segments of the trocar operable to move between an open position and a closed position depending on a location of the trocar relative to the outer penetrator, and the first and second segments of the trocar operable to grasp a sample of bone marrow therebetween. - View Dependent Claims (18, 19, 20)
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Specification