Cochlear drug delivery system and method

Abstract

A drug administration system configured to administer a drug to a user's ear includes a housing, sized and shaped to substantially fit behind the user's ear, and configured to pump the drug in controlled amounts to the user's middle ear. A drug reservoir is disposed in the housing and includes a drug configured to treat an inner ear condition. A catheter is operatively coupled to the drug reservoir and is sized and shaped to extend from the drug administration unit into the user's middle ear.

Description

[0001] This continuation application claims the benefit of U.S. patent application Ser. No. 10 / 389,251 filed on Mar. 14, 2003, and also U.S. Provisional Patent Application No. 60 / 364,431, filed Mar. 15, 2002, each of which are incorporated by reference in their entirety herein.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates generally to treatment of target disease areas of the body, including inner ear disorders, such as Meniere's disease, tinnitus, and hearing loss. More particularly, the present invention relates to a method and apparatus for administering medication to the disease target area, such as the middle ear and / or inner ear (or cochlea). [0004] 2. Related Art [0005] Various situations or medical conditions of the inner ear require the administration of drugs or like medicines to the middle ear. Such medical conditions or inner ear disorders can include sudden neurosensory hearing loss, Meniere's disease, and tinnitus. The...

AI Technical Summary

Benefits of technology

"The present invention provides a drug administration system and method for treating inner and middle ear disorders, such as sudden neurosensory hearing loss, Meniere's disease, and tinnitus. The system is convenient, unobtrusive, and inexpensive. It can deliver drugs directly to the middle ear and cochlea, and can also be used to treat diseased target areas in the head and neck area. The system includes a housing, a drug reservoir, and a catheter that can be extended from the housing and into the user's body or the diseased target area for controlled drug delivery. The method involves placing the drug administration unit behind the user's ear and disposing the catheter inside or adjacent to the diseased target area for drug delivery. The technical effects of the invention include improved drug delivery to the inner and middle ear, reduced systemic drug exposure, and improved treatment outcomes."

Problems solved by technology

These conditions affect up to 40 million persons in the United States, and are the cause of significant loss of productivity and quality of life.

One disadvantage with medications is that they are often administered orally or intravenously, each of which results in a systemic administration of the medication.

Systemic administration of medication is problematic in some applications in that the medication is distributed throughout much of the patient's body.

However, it is often the case that systemic administration of medication is problematic in that the desired therapeutic level of medication is delivered to the diseased portion of the body that is being treated, but higher than therapeutic levels are delivered to other parts of the body.

This can lead to the serious and undesirable result of systemic toxicity.

One disadvantage with surgical treatment is the expense and invasiveness of surgery.

In addition, many of the surgical procedures used for treating these disorders are considered controversial.

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