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Intraosseous needle

  • US 5,601,559 A
  • Filed: 02/04/1994
  • Issued: 02/11/1997
  • Est. Priority Date: 10/24/1988
  • Status: Expired due to Term
First Claim
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1. An intraosseous needle, comprising:

  • a threaded shaft having first and second opposing ends and a passageway extending from the first end toward the second end, said threaded shaft including a plurality of thread portions;

    boring means for initiating penetration of said shaft into bone, said boring means formed as part of said second end;

    wherein said shaft has at least one opening proximal to the second end and in communication with the passageway;

    wherein said boring means is generally conical with a pointed tip;

    wherein said boring means is solid and has at least two cutting edges;

    wherein said at least one opening is a side port located behind said boring means;

    wherein said boring means has a pair of concave indentations which define said at least two cutting edges; and

    wherein at least one thread portion proximal said first end has a greater major diameter than at least one thread portion proximal said second end.

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