Drug-coated balloon
First Claim
1. A system for delivering treatment to a nasal, otic, or throat tissue site, comprising:
- an expandable device having a low-profile configuration and an expanded configuration, and having a drug coating on an external surface thereof;
a delivery device having a sheath, the expandable device disposed within the sheath in the low-profile configuration until deployment at one or more target tissue sites; and
an inflation source in fluid communication with the expandable device, configured to expand the expandable device one or more times, where expansion of the expandable device transfers a portion of the drug coating from the external surface of the expandable device to the one or more target tissue sites, and where transfer of the drug coating maintains a therapeutic level of local drug delivery.
1 Assignment
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Accused Products
Abstract
Described here are devices, systems, and methods for treating conditions or diseases of the nose, ear, or throat with an expandable device having a drug coating. The expandable devices may be delivered to a body cavity in a low-profile configuration and expanded to contact surrounding tissue. The expandable devices may deliver or release the drug coating to the tissue. Multiple expansions of a single device may be employed during treatment. Various coating excipients and manufacturing parameters for the expandable devices may also be adjusted to enhance or slow transfer of the drug coating and/or release of the drug to the target tissue site. The drug transferred to the tissue may act as an in situ depot that enables maintenance of a therapeutic level of locally delivered drug for a desired time period after removal of the expandable devices.
47 Citations
30 Claims
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1. A system for delivering treatment to a nasal, otic, or throat tissue site, comprising:
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an expandable device having a low-profile configuration and an expanded configuration, and having a drug coating on an external surface thereof; a delivery device having a sheath, the expandable device disposed within the sheath in the low-profile configuration until deployment at one or more target tissue sites; and an inflation source in fluid communication with the expandable device, configured to expand the expandable device one or more times, where expansion of the expandable device transfers a portion of the drug coating from the external surface of the expandable device to the one or more target tissue sites, and where transfer of the drug coating maintains a therapeutic level of local drug delivery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of treating a nasal, otic, or throat condition, comprising:
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providing an expandable device comprising a drug coating on an external surface thereof and having a low-profile configuration and an expanded configuration; delivering the expandable device in the low-profile configuration to a target tissue site; transferring a portion of the drug coating from the external surface to the target tissue site by at least one expansion of the expandable device; removing the expandable member from the target tissue site; and maintaining a therapeutic level of local drug delivery at the target tissue site from the transferred drug coating for a time period effective to treat the target tissue site. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification