Systems and methods for sinus access
First Claim
Patent Images
1. A system for accessing and dilating one or more target tissue sites associated with a paranasal sinus, comprising:
- a delivery device, comprising;
an applicator, the applicator having a proximal end, a deflectable distal end, a distal tip, a device lumen, and a pullwire lumen;
a handle, mechanically coupled to the applicator proximal end and having a first fluid connection port;
an expandable member configured to move through the device lumen to a position at or adjacent to the deflectable distal end, and having an interior volume in fluid communication with the first fluid connection port;
an adjustment knob rotatably coupled to, and concentrically disposed about, the applicator proximal end; and
a pullwire having a proximal end and a distal end, extending through the pullwire lumen, where the pullwire distal end is attached to the applicator distal tip and the pullwire proximal end is coupled to the adjustment knob; and
an inflation and deflation device, comprising;
a syringe barrel, having a second fluid connection port, the second fluid connection port configured to be in fluid communication with the first fluid connection port;
a plunger arranged to reversibly move a length within the syringe; and
a locking mechanism configured to limit the length the plunger can depress within the syringe.
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0 Petitions
Accused Products
Abstract
This application is generally related to systems and methods for accessing the paranasal sinuses and other passages of the nose, ear, and throat. The systems and methods generally employ devices capable of maintaining a fixed handle orientation with respect to the patient while generating the appropriate applicator deflection angle required to rotationally align or orient the applicator tip to the intended target tissue/anatomy for treatment. Methods are also described for deploying drug delivery devices within these body structures using the systems to treat medical conditions associated therewith.
47 Citations
28 Claims
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1. A system for accessing and dilating one or more target tissue sites associated with a paranasal sinus, comprising:
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a delivery device, comprising; an applicator, the applicator having a proximal end, a deflectable distal end, a distal tip, a device lumen, and a pullwire lumen; a handle, mechanically coupled to the applicator proximal end and having a first fluid connection port; an expandable member configured to move through the device lumen to a position at or adjacent to the deflectable distal end, and having an interior volume in fluid communication with the first fluid connection port; an adjustment knob rotatably coupled to, and concentrically disposed about, the applicator proximal end; and a pullwire having a proximal end and a distal end, extending through the pullwire lumen, where the pullwire distal end is attached to the applicator distal tip and the pullwire proximal end is coupled to the adjustment knob; and an inflation and deflation device, comprising; a syringe barrel, having a second fluid connection port, the second fluid connection port configured to be in fluid communication with the first fluid connection port; a plunger arranged to reversibly move a length within the syringe; and a locking mechanism configured to limit the length the plunger can depress within the syringe. - View Dependent Claims (2, 3, 4)
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5. A system for accessing one or more target tissue sites associated with a paranasal sinus, comprising:
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an applicator, the applicator having a proximal end, a deflectable distal end, a distal tip, a device lumen, and a pullwire lumen; a handle mechanically coupled to the applicator proximal end; an adjustment knob rotatably coupled to, and concentrically disposed about, the applicator proximal end; and a pullwire having a proximal end and a distal end, extending through the pullwire lumen, where the pullwire distal end is attached to the applicator distal tip and the pullwire proximal end is coupled to the adjustment knob. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for accessing one or more target tissue sites associated with a paranasal sinus, comprising:
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advancing a system to the target tissue site, wherein the system comprises; an applicator comprising a proximal end, a distal end, a device lumen, a pullwire lumen, and an expandable device; a handle fixedly attached to the applicator proximal end; a single pullwire attached to the applicator distal tip and extending proximally through the pullwire lumen; a guidewire; and an adjustment knob concentrically disposed about the applicator proximal end; deflecting the distal end of the applicator to a deflection angle by retracting the single pullwire; accessing the target tissue site with the applicator at the deflection angle; advancing the expandable device within the device lumen and over the guidewire; and expanding the device to contact the target tissue site of the paranasal sinus. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification