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Devices for obstructing passage of air or other contaminants into a portion of a lung and methods of use

  • US 9,681,938 B2
  • Filed: 03/28/2014
  • Issued: 06/20/2017
  • Est. Priority Date: 04/26/2013
  • Status: Active Grant
First Claim
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1. A device for selectively controlling air flow in a patient, the device comprising:

  • a member having a proximal end, a distal end, and a lumen extending therebetween;

    an inner member disposed about a portion of the lumen, wherein the inner member is configured to transition between a first configuration and a second configuration, wherein, in the first configuration, the portion of the lumen including the inner member defines a first diameter, and, in the second configuration, the portion of the lumen including the inner member defines a second diameter smaller than the first diameter;

    an actuation member for transitioning the inner member between the first configuration and the second configuration; and

    a controller configured to send an output to the actuation member, the controller being configured to;

    increase a rate at which the inner member transitions between the first configuration and the second configuration when a frequency of inhalation and exhalation of a lung of the patient increases; and

    decrease the rate at which the inner member transitions between the first configuration and the second configuration when the frequency of inhalation and exhalation in the lung decreases.

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