Reservoir device for intraocular drug delivery
First Claim
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1. A medical device kit, comprising a sustained release delivery device, the delivery device comprising:
- a refillable reservoir sized and shaped for implantation into the vitreal cavity of an eye, the reservoir comprising a wall formed of a non-distensible material, the reservoir configured to adopt a collapsed configuration having a first cross-sectional dimension and an expanded configuration having a second, larger cross-sectional dimension after insertion into the eye;
an inlet port in fluid communication with, and at a proximal end of, the reservoir, the inlet port configured for injection of an agent into the reservoir after insertion of the reservoir into the eye, wherein the inlet port is adapted to remain external to the sclera after insertion of the reservoir into the vitreal cavity;
an inner support around which the reservoir is configured to adopt a collapsed configuration that provides sufficient rigidity for insertion of the device through the scleral wall and into the vitreal cavity, the inner support comprises a proximal end and a distal end each extending external to the reservoir; and
a delivery mechanism for controlled, sustained delivery of the agent to the patient, the delivery mechanism in communication with the reservoir such that the agent releases out of the reservoir through the delivery mechanism to a treatment site at a desired rate.
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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.
197 Citations
23 Claims
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1. A medical device kit, comprising a sustained release delivery device, the delivery device comprising:
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a refillable reservoir sized and shaped for implantation into the vitreal cavity of an eye, the reservoir comprising a wall formed of a non-distensible material, the reservoir configured to adopt a collapsed configuration having a first cross-sectional dimension and an expanded configuration having a second, larger cross-sectional dimension after insertion into the eye; an inlet port in fluid communication with, and at a proximal end of, the reservoir, the inlet port configured for injection of an agent into the reservoir after insertion of the reservoir into the eye, wherein the inlet port is adapted to remain external to the sclera after insertion of the reservoir into the vitreal cavity; an inner support around which the reservoir is configured to adopt a collapsed configuration that provides sufficient rigidity for insertion of the device through the scleral wall and into the vitreal cavity, the inner support comprises a proximal end and a distal end each extending external to the reservoir; and a delivery mechanism for controlled, sustained delivery of the agent to the patient, the delivery mechanism in communication with the reservoir such that the agent releases out of the reservoir through the delivery mechanism to a treatment site at a desired rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for sustained delivery of a therapeutic agent, the method comprising:
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providing a delivery device comprising; (a) a refillable reservoir sized and shaped for implantation into the vitreal cavity of an eye, the reservoir comprising a wall formed of a non-distensible material, the reservoir configured to adopt a collapsed configuration having a first cross-sectional dimension and an expanded configuration having a second, larger cross-sectional dimension after insertion into the eye; (b) an inlet port in fluid communication with, and at a proximal end of, the reservoir, the inlet port configured for injection of an agent into the reservoir after insertion of the reservoir into the eye, wherein the inlet port is adapted to remain external to the eye after insertion of the reservoir into the vitreal cavity; (c) an inner support around which the reservoir is configured to adopt a collapsed configuration that provides sufficient rigidity for insertion of the device through the scleral wall and into the vitreal cavity, the inner support comprises a proximal end and a distal end each extending external to the reservoir; and (d) a delivery mechanism for controlled, sustained delivery of the agent to the patient, the delivery mechanism in communication with the reservoir such that the agent releases out of the reservoir through the delivery mechanism to a treatment site at a desired rate; inserting the refillable reservoir of the delivery device into the vitreal cavity of an eye through an incision while the inlet port remains external to the sclera after insertion of the reservoir into the vitreal cavity; injecting the therapeutic agent into the device through the inlet port; and flowing the therapeutic agent from the reservoir through the delivery mechanism so as to deliver the therapeutic agent to a treatment site at a desired rate. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification