Medical implant drug delivery device
First Claim
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1. An implantable tissue stimulating device comprising:
- an electrode assembly comprising a lead and an elongate member having its proximal end contiguous with a distal end of the lead, and having one or more electrodes disposed on or in the elongate member; and
a slider means for delivery of a bioactive substance slidably mounted on the lead such the lead extends through the slider means, the slider means configured to receive a bioactive substance and deliver the bioactive substance to a target site in the recipient.
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Abstract
Devices for the delivery of a bioactive substance to a cochlea and methods of delivery thereof. The devices include means to allow the release of the bioactive substance within a cochlea.
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Citations
13 Claims
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1. An implantable tissue stimulating device comprising:
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an electrode assembly comprising a lead and an elongate member having its proximal end contiguous with a distal end of the lead, and having one or more electrodes disposed on or in the elongate member; and a slider means for delivery of a bioactive substance slidably mounted on the lead such the lead extends through the slider means, the slider means configured to receive a bioactive substance and deliver the bioactive substance to a target site in the recipient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A cochlear implant comprising:
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a stimulator unit configured to generate electrical stimulation signals; an electrode assembly comprising a lead extending from the stimulator unit, and a contiguous elongate member implantable in a recipient'"'"'s cochlea; one or more electrodes disposed on or in the elongate member each configured to deliver the electrical stimulation signals to the cochlea; and an annular collar slidably mounted around the lead such that the lead extends through a lumen in the collar, the collar having a non-porous cavity therein configured to receive a bioactive substance and an outlet located on an exterior face of the collar through which the bioactive substance can pass from the cavity to a target site in the recipient, wherein the outlet faces the electrode assembly and forms a boundary of the cavity.
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Specification