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Marker delivery device with releasable plug

  • US 9,861,294 B2
  • Filed: 01/29/2015
  • Issued: 01/09/2018
  • Est. Priority Date: 02/02/1999
  • Status: Expired due to Fees
First Claim
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1. A marker delivery device for use in marking an intracorporeal tissue site, comprising:

  • an elongated delivery cannula which has a distal end section, an inner lumen, and a discharge opening in the distal end section in communication with the inner lumen;

    a plunger slidably disposed within the inner lumen of the elongated delivery cannula, the plunger having a distal end;

    at least one elongated fibrous marker body having a plurality of layers of fibrous material that is pre-formed prior to being inserted into the inner lumen of the elongated delivery cannula, the at least one elongated fibrous marker body being slidably disposed within the inner lumen of the elongated delivery cannula at a location distal to the distal end of the plunger, the pre-formed at least one elongated fibrous marker body being compressed and impregnated with a binding agent and freeze dried in the compressed condition; and

    a releasable plug disposed within a distal portion of the inner lumen and distal to the at least one elongated fibrous marker body.

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