Osmotic drug delivery monitoring system and method
First Claim
1. An osmotic delivery device for delivery of a beneficial agent to an animal comprising:
- an implantable reservoir having at least one opening for delivering a beneficial agent contained within an interior of the reservoir to an organ of an animal;
an osmotic engine adapted to cause the release of the beneficial agent contained within the reservoir to the animal; and
means for noninvasively measuring the release of the beneficial agent from the reservoir from outside of tissue in which the delivery device is implanted.
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Accused Products
Abstract
Performance of delivery systems for delivering beneficial agents to an animal are monitored to determine the delivery rate of the beneficial agent and the proper operation of the beneficial agent delivery device. Performance monitoring can be achieved by monitoring the physical configuration of the implanted osmotic delivery device from the exterior of the body to determine the amount of beneficial agent delivered and/or the delivery rate of the beneficial agent. The monitoring of the physical configuration of the implanted osmotic delivery device may be performed in different manners such as by X-ray or fluoroscopic monitoring of the implant structure or magnetic determination of a piston location within the implant. Performance monitoring can also be achieved by use of a performance marker within the beneficial agent to produce a specifically detectable response which can be measured noninvasively in body fluids or by-products.
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Citations
19 Claims
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1. An osmotic delivery device for delivery of a beneficial agent to an animal comprising:
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an implantable reservoir having at least one opening for delivering a beneficial agent contained within an interior of the reservoir to an organ of an animal;
an osmotic engine adapted to cause the release of the beneficial agent contained within the reservoir to the animal; and
means for noninvasively measuring the release of the beneficial agent from the reservoir from outside of tissue in which the delivery device is implanted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of monitoring performance of an osmotic drug delivery system comprising:
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implanting an osmotic drug delivery device having a movable piston in an animal; and
determining a position of the implanted movable piston within the osmotic drug delivery device from an exterior of the animal. - View Dependent Claims (17, 18, 19)
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Specification