DELIVERY METHODS AND DEVICES FOR IMPLANTABLE BRONCHIAL ISOLATION DEVICES
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Accused Products
Abstract
Disclosed is a sizing device for sizing an inside diameter of a lung passageway. The device includes an elongate shaft configured for positioning in the lung passageway and a sizing element at the distal end of the shaft. The sizing element defines a range of transverse dimensions that correspond to a range of transverse dimensions suitable for use with a predetermined set of bronchial isolation devices. The device is used to determine the suitability of a bronchial isolation device for use in the lung passageway prior to using a separate delivery catheter to deliver the bronchial isolation device into the lung passageway.
100 Citations
10 Claims
- 1. (canceled)
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2. A method for delivering a bronchial isolation device into a pulmonary airway, the device comprising:
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advancing a delivery catheter through a bronchoscope so that a distal portion of the delivery catheter extends out of a distal opening in the bronchoscope and into the airway, wherein the bronchial isolation device is housed in the distal portion of the delivery catheter; positioning sizing elements extending radially outward from the distal portion of the delivery catheter at or near a target location in the airway for delivering the bronchial isolation device; visualizing with the bronchoscope whether a larger-diameter sizing element on the delivery catheter is contacting a wall of the airway in the target location and a smaller-diameter sizing element is not contacting the wall of the airway; and delivering the bronchial isolation device at the target location if the larger-diameter sizing element is contacting the wall of the airway and the smaller-diameter sizing element is not contacting the wall.
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9. A method for delivering a bronchial isolation device into a pulmonary airway, the device comprising:
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advancing a sizing catheter through a bronchoscope so that a distal portion of the sizing catheter extends out of a distal opening in the bronchoscope and into the airway; positioning sizing elements extending radially outward from the distal portion of the sizing catheter at or near a target location in the airway for delivering the bronchial isolation device; visualizing with the bronchoscope a larger-diameter sizing element on the sizing catheter contacting a wall of the airway in the target location and a smaller-diameter sizing element not contacting the wall of the airway; removing the sizing catheter from the bronchoscope; advancing a delivery catheter housing the bronchial isolation device sized according to diameters of the larger- and smaller-diameter sizing elements through the bronchoscope to the target location; and delivering the bronchial isolation device at the target location.
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10. A method as in claim 10, wherein advancing the delivery catheter comprises advancing the catheter until a distal tip of the catheter contacts a tip of a carina of a next more distal airway bifurcation, the method further comprising confirming that the bronchial isolation device has a desired length by visualizing a position of the sizing elements relative to the target location in the airway.
Specification