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SYSTEMS, DEVICES AND METHODS HAVING AN OVERTUBE FOR ACCESSING A BODILY OPENING

  • US 20090093675A1
  • Filed: 10/08/2008
  • Published: 04/09/2009
  • Est. Priority Date: 10/09/2007
  • Status: Abandoned Application
First Claim
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1. A medical system for accessing a bodily opening defined by tissue, the medical system comprising:

  • a medical instrument; and

    an overtube defining an overtube lumen sized to receive the medical instrument, the overtube and the overtube lumen defining a longitudinal axis, the overtube including a distal end having a tapered portion and a plurality of longitudinally extending slits defining a plurality of flaps;

    the tapered portion of the overtube sized relative to the medical instrument such that distal translation of the medical instrument through the distal end of the overtube forces the plurality of flaps to move radially between an introduction configuration to an operative configuration,the plurality of flaps engaging each other at a distal tip of the overtube to substantially close the overtube lumen in the introduction configuration, the plurality of flaps moved radially outwardly in the operative configuration.

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