Balloon catheters and methods for treating paranasal sinuses
First Claim
1. A device for dilating a surgically prepared small, tight opening in a paranasal sinus, an obstructed or narrowed bony duct, opening or ostium between the paranasal sinus and nasal cavity, said device comprising:
- a tubular body having a proximal end, a proximal segment, a distal end, and a distal segment;
an inflatable member proximate to said distal segment;
said inflatable member being capable of dilating a surgically prepared small, tight opening in a paranasal sinus, an obstructed or narrowed bony duct, opening or ostium between the paranasal sinus and nasal cavity;
wherein said distal segment is at a preset angle of less than 180 degrees to said proximal segment;
wherein said tubular body is dimensioned and has sufficient stiffness and column strength to enable said inflatable member, when said inflatable member is deflated, to be inserted transnasally through a nasal cavity and pushed, without being supported and guided by a guide wire, snugly into a surgically prepared small, tight opening in a paranasal sinus, an obstructed or narrowed bony duct, opening or ostium between the paranasal sinus and nasal cavity.
1 Assignment
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Accused Products
Abstract
A set of sinus balloon catheters are provided for treating a patient'"'"'s paranasal sinus system, including dilating prepared openings, and natural ostia and ducts and excising sinus cavities. These include a balloon catheter with a bend placing a distal segment at 90° to a proximal segment and a balloon catheter which is substantially straight. The catheters have sufficient stiffness and column strength that the balloon carrying distal segment of the catheter can be pushed into the prepared opening, natural ostium or duct, or sinus to be excised. The catheters have appropriate inflated working diameters and appropriate outer diameters with the balloon deflated that will enable the catheter to be pushed into the respective prepared opening, natural ostium or duct, or sinus cavity to be excised. The methods use the balloon catheters to dilate prepared openings to selected parts of the sinus system, to dilate natural ostia and ducts of the sinus system, and/or to dilate sinus cavities to remove them.
903 Citations
20 Claims
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1. A device for dilating a surgically prepared small, tight opening in a paranasal sinus, an obstructed or narrowed bony duct, opening or ostium between the paranasal sinus and nasal cavity, said device comprising:
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a tubular body having a proximal end, a proximal segment, a distal end, and a distal segment; an inflatable member proximate to said distal segment; said inflatable member being capable of dilating a surgically prepared small, tight opening in a paranasal sinus, an obstructed or narrowed bony duct, opening or ostium between the paranasal sinus and nasal cavity; wherein said distal segment is at a preset angle of less than 180 degrees to said proximal segment;
wherein said tubular body is dimensioned and has sufficient stiffness and column strength to enable said inflatable member, when said inflatable member is deflated, to be inserted transnasally through a nasal cavity and pushed, without being supported and guided by a guide wire, snugly into a surgically prepared small, tight opening in a paranasal sinus, an obstructed or narrowed bony duct, opening or ostium between the paranasal sinus and nasal cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A device for dilating a surgically prepared small, tight opening in a paranasal sinus, an obstructed or narrowed bony duct, opening or ostium between the paranasal sinus and nasal cavity, said device comprising:
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a tubular body having a proximal end, a proximal segment, a distal end, and a distal segment; an inflatable member proximate to said distal segment; said inflatable member being capable of dilating a surgically prepared small, tight opening in a paranasal sinus, an obstructed or narrowed bony duct, opening or ostium between the paranasal sinus and nasal cavity; wherein said distal segment is at a preset angle of less than 180 degrees to said proximal segment; wherein said tubular body is dimensioned and has sufficient stiffness and column strength, in absence of a rigidizing member or guide wire, to enable said inflatable member, when said inflatable member is deflated, to be inserted transnasally through a nasal cavity and pushed snugly into a surgically prepared small, tight opening in a paranasal sinus, an obstructed or narrowed bony duct, opening or ostium between the paranasal sinus and nasal cavity. - View Dependent Claims (17, 18, 19, 20)
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Specification