Implantable drug delivery device
First Claim
1. An implantable device for controlled delivery of a drug comprising:
- a substrate;
at least two reservoirs in the substrate, each reservoir having an opening;
at least one therapeutic agent in each of the reservoirs;
a reservoir cap sealing each opening;
a mechanical rupturing mechanism which comprises a structure which moves, at the time selected for rupture of a reservoir cap, from a non-contacting position outside of the reservoir into contact with and ruptures the reservoir cap to permit release of the therapeutic agent from the reservoir through the opening; and
a mixing chamber adjacent the reservoirs, wherein upon release of the therapeutic agent from at least one of the reservoirs, the therapeutic agent is combined with a carrier fluid in the mixing chamber and then transported to a delivery site in a human or animal.
2 Assignments
0 Petitions
Accused Products
Abstract
Implantable devices for controlled delivery of a drug are provided which include a substrate; at least two reservoirs in the substrate, each reservoir having an opening; at least one therapeutic agent in each of the reservoirs; a reservoir cap sealing each opening; a mechanical rupturing mechanism which moves into contact with and ruptures the reservoir cap to permit release the therapeutic agent from the reservoir through the opening; and a mixing chamber adjacent the reservoirs, wherein upon release of the therapeutic agent from at least one of the reservoirs, the therapeutic agent is combined with a carrier fluid in the mixing chamber and then transported to a delivery site in a human or animal.
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Citations
14 Claims
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1. An implantable device for controlled delivery of a drug comprising:
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a substrate; at least two reservoirs in the substrate, each reservoir having an opening; at least one therapeutic agent in each of the reservoirs; a reservoir cap sealing each opening; a mechanical rupturing mechanism which comprises a structure which moves, at the time selected for rupture of a reservoir cap, from a non-contacting position outside of the reservoir into contact with and ruptures the reservoir cap to permit release of the therapeutic agent from the reservoir through the opening; and a mixing chamber adjacent the reservoirs, wherein upon release of the therapeutic agent from at least one of the reservoirs, the therapeutic agent is combined with a carrier fluid in the mixing chamber and then transported to a delivery site in a human or animal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of delivering a drug to a human or animal patient in need thereof comprising:
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implanting in the patient a device which comprises a substrate, at least two reservoirs in the substrate, each reservoir having an opening, at least one therapeutic agent in each of the reservoirs, a reservoir cap sealing each opening, and a mixing chamber adjacent the reservoirs; and activating a mechanical rupturing mechanism which comprises a structure which moves from a non-contacting position outside of the reservoir into contact with the reservoir cap, rupturing the reservoir cap to permit release of the therapeutic agent from the reservoir through the opening such that the therapeutic agent combines with a carrier fluid in the mixing chamber and then is transported to a delivery site in the patient. - View Dependent Claims (12, 13, 14)
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Specification