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Tracheobronchial implantable medical device and methods of use

  • US 9,833,342 B2
  • Filed: 10/06/2015
  • Issued: 12/05/2017
  • Est. Priority Date: 08/21/2006
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • delivering a bioabsorbable stent to a tracheobronchial region of a mammal, wherein a treatment agent is disposed on or within at least a portion of the stent, and the treatment agent (a) is subjected to controlled release and (b) treats at least one of granulation tissue formation, mucous plugging and inflammation; and

    positioning the stent in the tracheobronchial region by self-expanding the stent within a trachea or a bronchi of the mammal and anchoring a proximal end and a distal end of the stent to a wall of the trachea or the bronchi to prevent stent migration, wherein the proximal end and the distal end of the stent have a pitch of from 60 to 100 picks per inch, and the pitch of the proximal end and the distal end is greater than a pitch of a central portion of the stent such that a radial strength at the proximal end and the distal end is greater than the central portion and anchors the stent to the wall of the trachea or the bronchi.

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