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Biopsy needle with flared tip

  • US 5,938,635 A
  • Filed: 12/30/1996
  • Issued: 08/17/1999
  • Est. Priority Date: 12/30/1996
  • Status: Expired due to Fees
First Claim
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1. A biopsy needle comprising:

  • (a) a needle shaft; and

    (b) a needle tip coupled to said needle shaft and flared with respect to said needle shaft, wherein said needle shaft has sufficient resistance to bending to transfer axial driving forces to said needle tip to allow said needle tip to initially penetrate the tissue, and said needle shaft is sufficiently flexible to allow said needle to travel in an arcing trajectory due to a deflection force imposed on said needle tip during advancement of said needle into the tissue.

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