DEVICES AND METHODS FOR TREATING MAXILLARY SINUS DISEASE
First Claim
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1. A method for treating a disorder of a maxillary sinus in a human or animal subject, the method comprising:
- forming an opening into the maxillary sinus;
advancing a sinus spacer device at least partway through the opening;
deploying at least one retention member of the spacer device to retain at least part of the spacer device within the maxillary sinus;
introducing a substance into the spacer device to expand the device from a collapsed to an expanded configuration; and
leaving the spacer device in the subject for a period of between 1 day and 60 days to allow the introduced substance to exit the spacer device and treat the disorder.
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Abstract
Devices and methods are described for improving drainage and/or aeration of maxillary sinuses and for treating maxillary sinus disease. Spacer devices are implanted through natural or man-made openings in the maxillary sinus. In some embodiments, the spacer device is loaded with a therapeutic substance which then exits the device over a desired time period to treat maxillary sinus disease.
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Citations
42 Claims
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1. A method for treating a disorder of a maxillary sinus in a human or animal subject, the method comprising:
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forming an opening into the maxillary sinus; advancing a sinus spacer device at least partway through the opening; deploying at least one retention member of the spacer device to retain at least part of the spacer device within the maxillary sinus; introducing a substance into the spacer device to expand the device from a collapsed to an expanded configuration; and leaving the spacer device in the subject for a period of between 1 day and 60 days to allow the introduced substance to exit the spacer device and treat the disorder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for treating a disorder of a maxillary sinus in a human or animal subject, the method comprising:
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dilating a maxillary sinus ostium; advancing a sinus spacer device at least partway through the maxillary sinus ostium; deploying at least one retention member of the spacer device to retain at least part of the spacer device within the maxillary sinus; introducing a substance into the spacer device to expand the device from a collapsed to an expanded configuration; and leaving the spacer device in the subject for a period of between 1 day and 60 days to allow the introduced substance to exit the spacer device and treat the disorder. - View Dependent Claims (27, 28, 29)
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30. A system useable for treating a disorder of a maxillary sinus, the system comprising:
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a sinus spacer device that comprises; an elongate shaft having a lumen, a proximal end and a distal end; an expandable reservoir attached to the distal end of the elongate shaft such that a substance may be introduced through the lumen of the elongate shaft into the expandable reservoir, thereby causing the reservoir to expand to a diameter of from about 3 mm to about 8 mm and a length of from about 1 mm to about 100 mm; and retention projections located proximal to the expandable reservoir, said retention projections being initially disposable in a collapsed configuration and subsequently transitionable to an expanded configuration wherein the retention projections span a diameter of from about 14 mm to about 20 mm; and a stylet having a proximal end, a distal end and an outer diameter sized to allow insertion of the stylet into the lumen of the elongate shaft. - View Dependent Claims (31, 32, 35)
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34. A system according to claim 33 wherein the curve in the stylet is approximately 90 degrees to approximately 110 degrees.
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36. A system for treating a disorder of a maxillary sinus, the system comprising:
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a sinus spacer device, comprising; an elongate shaft having a lumen, a proximal end and a distal end; an expandable reservoir attached to the distal end of the elongate shaft such that a substance may be introduced through the lumen of the elongate shaft into the expandable reservoir, thereby causing the reservoir to expand to a diameter of from about 3 mm to about 8 mm and a length of from about 1 mm to about 100 mm; and retention projections located proximal to the expandable reservoir, said retention projections being initially disposable in a collapsed configuration and subsequently transitionable to an expanded configuration wherein the retention projections span a diameter of from about 14 mm to about 20 mm; and a tubular delivery guide having a lumen through which the spacer device is insertable. - View Dependent Claims (37, 38, 39, 40, 41, 42)
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Specification