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Drilling feeler, in particular for positioning and securing a medullary nail

  • US 4,943,291 A
  • Filed: 12/19/1988
  • Issued: 07/24/1990
  • Est. Priority Date: 12/18/1987
  • Status: Expired due to Fees
First Claim
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1. Drilling feeler, in particular for positioning and fixing a medullary nail in which, through external gripping means, is introduced into the medullary nail and is placed in alignment with the axis of an inlet pin or screw hole of the wall of this nail, a drilling tool integral with a sliding block bearing means for positioning and blocking the said nail, this tool being mounted at the distal end of a driving rotating spindle, at least partially flexible, wherein the distal end of the spindle carrying the tool is housed in a bore of a sleeve protruding from a drilling head, said head being movable around an axle carried by the block sliding between a disengagement position allowing the sliding of the said head in the nail and an engagement position in which the sleeve is engaged in the inlet pin or screw hole, the feeler furthermore comprising a blocking wedge hinged to the end of a rod connected to the gripping means, this wedge being adapted to move closer to or away from the drilling head, in order to respectively maintain it in engagement position or allow its tilting towards disengagement position.

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