Patent ID: 8758383

Claim:
A depth controlled jamshidi needle comprising: an outer cannula assembly, said outer cannula assembly including a substantially rigid first tubular member having a first end and a second end, said first end including a threaded tubular portion positioned around and secured to said first tubular member, an inner cannula assembly, said inner cannula assembly including a substantially rigid second tubular member having a first end and a second end, a handle secured to said first end of said inner cannula assembly, a lower portion of said handle including a threaded member constructed and arranged to cooperate with said threaded tubular portion of said outer cannula assembly, said lower portion of said handle including a bearing, said threaded member secured to said bearing for rotation whereby rotation of said threaded member, without rotation of said handle, causes linear movement of said inner cannula assembly within said outer cannula assembly, an upper portion of said handle including a first portion of a fastener constructed and arranged for removable attachment to a needle member, a needle member including a first end and a second end, said first end including the second portion of said fastener for removably securing said needle member to said handle, whereby rotation of said handle causes linear movement of said inner cannula assembly within said outer cannula assembly.