Pulmonary occlusal stent delivery catheter, loading system and methods of use
First Claim
1. A delivery system for delivering an occlusal stent to a target lung passageway comprising:
- a placement instrument configured for endobronchial advancement into a lung passageway leading to the target lung passageway, the instrument having a proximal end, a distal end, a working lumen extending therethrough;
a delivery catheter having a proximal end, a distal end and a receptacle formable within its distal end for loading the occlusal stent therein, the delivery catheter configured to be advanced through the working lumen of the placement instrument so that its distal end extends beyond the distal end of the placement instrument, and wherein its distal end is retractable so that retraction of its distal end releases the occlusal stent to the target lung passageway; and
a clamp connector attachable to the working lumen and having a passageway that allows passage of the delivery catheter through the passageway and into the working lumen of the placement instrument.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods, systems and devices are provided for performing lung volume reduction in patients suffering from chronic obstructive pulmonary disease or other conditions where isolation of a lung segment or reduction of lung volume is desired. The methods are minimally invasive with instruments being introduced through the mouth (endotracheally) and rely on isolating the target lung tissue segment from other regions of the lung and occluding various lung passageways with the use of occlusal stents. The occlusal stents are delivered with the use of an occlusal stent delivery system which is loaded with the occlusal stent with the use of an occlusal stent loading system.
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Citations
66 Claims
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1. A delivery system for delivering an occlusal stent to a target lung passageway comprising:
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a placement instrument configured for endobronchial advancement into a lung passageway leading to the target lung passageway, the instrument having a proximal end, a distal end, a working lumen extending therethrough;
a delivery catheter having a proximal end, a distal end and a receptacle formable within its distal end for loading the occlusal stent therein, the delivery catheter configured to be advanced through the working lumen of the placement instrument so that its distal end extends beyond the distal end of the placement instrument, and wherein its distal end is retractable so that retraction of its distal end releases the occlusal stent to the target lung passageway; and
a clamp connector attachable to the working lumen and having a passageway that allows passage of the delivery catheter through the passageway and into the working lumen of the placement instrument. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A loading system comprising:
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an occlusal stent that is transitionable between an expanded configuration and a contracted configuration;
a loading body having a wide-mouthed end and a narrow-mouthed end, wherein the wide-mouthed end is configured to receive the occlusal stent in the expanded configuration and the narrow-mouthed end is configured to hold the occlusal stent in the contracted configuration; and
a loading mandrel having a proximal end, a distal end, and an attachment device disposed near its distal end that is removably attachable to the occlusal stent, wherein the mandrel is configured to load the removably attached occlusal stent into the wide-mouthed end and move the occlusal stent to the narrow-mouthed end. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method of delivering an occlusal stent to a lung passageway within a lung of a patient comprising:
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providing a visualization instrument, wherein the instrument has a proximal end, distal end, a working lumen therethrough, means for visualization near the distal end, and an occlusive member disposed near its distal end which is configured to be expandable to occlude the lung passageway;
advancing the visualization instrument through a trachea of the patient to a first location within the lung passageway;
occluding the lung passageway at the first location with the occlusive member;
evacuating the lung passageway;
providing a delivery catheter having a proximal end, a distal end, and an occlusal stent loaded within a receptacle in its distal end;
advancing the delivery catheter through the working lumen of the visualization instrument so that the distal end of the delivery catheter extends beyond the distal end of the bronchoscope to a second location within the lung passageway; and
retracting the distal end of the delivery catheter which releases the occlusal stent from the receptacle at the second location within the evacuated lung passageway. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A method comprising:
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providing a loading mandrel having a proximal end, a distal end and an occlusal stent removably attached to its distal end, wherein the occlusal stent is transitionable between an expanded configuration and a contracted configuration;
providing a loading body having a wide-mouthed end and a narrow-mouthed end, wherein the wide-mouthed end is configured to receive the occlusal stent in the expanded configuration and the narrow-mouthed end is configured to hold the occlusal stent in the contracted configuration;
positioning the loading mandrel within the loading body so that the occlusal stent is near the wide-mouthed end; and
manipulating the loading mandrel to load the occlusal stent into the wide-mouthed end and move the occlusal stent to the narrow-mouthed end within the loading body. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49)
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50. A clamp connector comprising:
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a connector body having a first end, a second end and a passageway therethrough, the passageway configured to receive at least a portion of a catheter; and
a fitting on the first end for attaching the connector body to a handle of a visualization instrument, the visualization instrument having a proximal end, a distal end, a working lumen extending therethrough, means for visualization near the distal end and the handle disposed near its proximal end so that attachment of the connector body to the handle joins the passageway with the working lumen to allow advancement of the catheter from the passageway into the working lumen. - View Dependent Claims (51, 52, 53, 54, 55, 56)
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57. A clamp connector comprising:
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a connector body having a passageway therethrough; and
means for connecting the connector body to a visualization instrument having a working lumen so that insertion of an instrument through the passageway of the connector body inserts the instrument into the working lumen of the visualization instrument. - View Dependent Claims (58, 59, 60, 61, 62)
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63. A delivery system for delivering an implant to a target location within a body comprising:
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an access instrument configured for advancement to the target location, the instrument having a proximal end, a distal end, a working lumen extending therethrough and an access port communicating with the working lumen;
a delivery catheter comprising a shaft having a proximal end, a distal end and a receptacle within its distal end for holding the implant, the delivery catheter configured to be advanced into the working lumen of the access instrument, the catheter further comprising an inner core axially movable relative to the shaft; and
a positioning mechanism attachable to the proximal end of the access instrument and further attachable to the inner core of the catheter. - View Dependent Claims (64, 65, 66)
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Specification