Reservoir device for intraocular drug delivery
First Claim
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1. A sustained release delivery device, the delivery device comprising:
- an elongate body having a proximal end and a distal end;
an elastomeric wall disposed around at least a portion of the elongate body forming a reservoir having a reservoir volume;
an inlet portion configured to be penetrated for injection of an amount of therapeutic agent into the reservoir after implantation in an eye; and
at least one outlet from the reservoir,wherein the distal end of the elongate body is positioned away from the inlet and extends external to the reservoir,wherein the elastomeric wall is configured to adopt a collapsed configuration having a first cross-sectional dimension and an expanded configuration having a second cross-sectional dimension larger than the first cross-sectional dimension after injection of the amount of therapeutic agent into the reservoir, andwherein pressure of the elastomeric wall on the reservoir volume provides a driving force for delivery of the therapeutic agent from the reservoir through the at least one outlet into the vitreal cavity.
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Abstract
A delivery device that allows for the sustained release of an agent, particularly useful for the sustained release of a therapeutic agent to limited access regions, such as the posterior chamber of the eye and inner ear. The delivery device is minimally invasive, refillable and may be easily fixed to the treatment area. The delivery device includes a hollow body with an inlet port at its proximal end for insertion of the agent, a reservoir for holding the agent and a delivery mechanism for the sustained delivery of the agent from the reservoir to the patient.
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Citations
17 Claims
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1. A sustained release delivery device, the delivery device comprising:
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an elongate body having a proximal end and a distal end; an elastomeric wall disposed around at least a portion of the elongate body forming a reservoir having a reservoir volume; an inlet portion configured to be penetrated for injection of an amount of therapeutic agent into the reservoir after implantation in an eye; and at least one outlet from the reservoir, wherein the distal end of the elongate body is positioned away from the inlet and extends external to the reservoir, wherein the elastomeric wall is configured to adopt a collapsed configuration having a first cross-sectional dimension and an expanded configuration having a second cross-sectional dimension larger than the first cross-sectional dimension after injection of the amount of therapeutic agent into the reservoir, and wherein pressure of the elastomeric wall on the reservoir volume provides a driving force for delivery of the therapeutic agent from the reservoir through the at least one outlet into the vitreal cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification