Devices for creating collateral channels
First Claim
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1. A medical device for creating collateral channels in lung tissue comprising:
- an elongate body having a proximal end and a distal end, and a lumen extending therethrough;
a heating element adapted to use heat to create holes in the tissue and extending distally from said distal end, and having a heating surface located over a front surface of said heating element said heating surface adapted to minimize heat in a radial direction from said heating element; and
an insulating surface located adjacent to said heating surface and which prevents heating of tissue adjacent to said insulating surface.
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Abstract
The devices disclosed herein are directed to altering gaseous flow within a lung to improve the expiration cycle of, for instance, an individual having Chronic Obstructive Pulmonary Disease. More particularly, these devices produce collateral openings or channels through the airway wall so that oxygen depleted/carbon dioxide rich air is able to pass directly out of the lung tissue to facilitate both the exchange of oxygen ultimately into the blood and/or to decompress hyper-inflated lungs.
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Citations
29 Claims
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1. A medical device for creating collateral channels in lung tissue comprising:
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an elongate body having a proximal end and a distal end, and a lumen extending therethrough;
a heating element adapted to use heat to create holes in the tissue and extending distally from said distal end, and having a heating surface located over a front surface of said heating element said heating surface adapted to minimize heat in a radial direction from said heating element; and
an insulating surface located adjacent to said heating surface and which prevents heating of tissue adjacent to said insulating surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29)
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16. A medical device for creating collateral channels in lung tissue comprising:
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an elongate body having a proximal end and a distal end, and a lumen extending therethrough;
a heating element adapted to use heat to create holes in the tissue and extending distally from said distal end, and having a heating surface located over a front surface of said heating element said heating surface adapted to minimize heat in a radial direction from said heating element; and
a shoulder located on said elongate body proximate to said heating element, wherein said shoulder has a diameter greater than a diameter of said heating element to limit the depth of penetration of said heating element within the tissue.
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26. A medical device for creating collateral channels in lung tissue comprising:
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an elongate body having a proximal end and a distal end, and a lumen extending therethrough;
a heating element adapted to use heat to create holes in the tissue and extending distally from said distal end, and having a heating surface located over a front surface of said heating element said heating surface adapted to minimize heat in a radial direction from said heating element, said heating surface has a depth less being than less than a diameter of said heating surface.
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Specification