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Injector for implanting multiple pellet medicaments

  • US 4,846,793 A
  • Filed: 03/18/1987
  • Issued: 07/11/1989
  • Est. Priority Date: 03/18/1987
  • Status: Expired due to Fees
First Claim
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1. A device for inserting and positioning a plurality of elongate implants beneath the skin, comprising:

  • a long, hollow cannula adapted for insertion beneath the skin;

    a hub to which the cannula is attached so as to define a continuous bore sufficiently long to contain said plurality of implants in an end-to-end relationship;

    a hollow body within which said hub is slidably mounted so as to move between a proximal and a distal position along an axis parallel to the continuous bore;

    an obturator having distal and proximal ends and including first and second sections which are connected so as to allow the first section to move with respect to the second section;

    means for mounting the obturator first section to the hollow body so that the continuous bore slides over the obturator as the hub is moved between the distal and proximal positions;

    the hub and obturator further including means for the hub to engaqe the obturator second section when the hub is first moved from the distal position to the proximal position and for moving the obturator second section in a distal direction to an extended position as the hub is subsequently moved from the proximal position to the distal position; and

    means, operative after the hub has been moved from the proximal position to the distal position, for maintaining the obturator second section in said extended position as the hub is moved from the distal position towards the proximal position.

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