Orthopedic and dental implant devices providing controlled drug delivery
First Claim
1. An implantable prosthetic device for controlled drug delivery comprising:
- a prosthetic device body having at least one outer surface area;
two or more discrete reservoirs located in spaced apart positions across at least a portion of the outer surface area, the reservoirs formed with an opening at the surface of the device body and extending into the device body; and
a release system disposed in the reservoirs which comprises at least one therapeutic or prophylactic agent, wherein following implantation into a patient the therapeutic or prophylactic agent is released in a controlled manner from the reservoirs.
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Accused Products
Abstract
Implantable prosthetic devices are provided for controlled drug delivery, for orthopedic and dental applications. The device may include a prosthetic device body having at least one outer surface area; two or more discrete reservoirs located in spaced apart positions across at least a portion of the outer surface area, the reservoirs formed with an opening at the surface of the device body and extending into the device body; and a release system disposed in the reservoirs which comprises at least one therapeutic or prophylactic agent, wherein following implantation into a patient the therapeutic or prophylactic agent is released in a controlled manner from the reservoirs. The prosthetic device body preferably is a joint prosthesis or part thereof, such as a hip prosthesis, a knee prosthesis, a vertebral or spinal disc prosthesis, or part thereof. Optional reservoir caps may further control release kinetics.
319 Citations
56 Claims
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1. An implantable prosthetic device for controlled drug delivery comprising:
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a prosthetic device body having at least one outer surface area;
two or more discrete reservoirs located in spaced apart positions across at least a portion of the outer surface area, the reservoirs formed with an opening at the surface of the device body and extending into the device body; and
a release system disposed in the reservoirs which comprises at least one therapeutic or prophylactic agent, wherein following implantation into a patient the therapeutic or prophylactic agent is released in a controlled manner from the reservoirs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 55, 56)
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45. An implantable prosthetic device for controlled drug delivery comprising:
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a prosthetic device body having at least one outer surface area;
two or more discrete microreservoirs located in spaced apart positions across at least a portion of the outer surface area, the microreservoirs formed with an opening at the surface of the device body and extending into the device body;
a release system disposed in the microreservoirs which comprises at least one therapeutic or prophylactic agent; and
a plurality of discrete, non-porous reservoir caps located over the release system in the microreservoirs, wherein release of the therapeutic or prophylactic agent following implantation of the device into a patient is controlled by the reservoir caps. - View Dependent Claims (46)
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47. An implantable prosthetic device for controlled drug delivery comprising:
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a prosthetic device body having at least one outer surface area;
two or more discrete microreservoirs located in spaced apart positions across at least a portion of the outer surface area, the microreservoirs formed with an opening at the surface of the device body and extending into the device body; and
a release system disposed in the reservoirs which comprises at least one therapeutic or prophylactic agent and a biodegradable or bioerodible matrix material;
wherein release of the therapeutic or prophylactic agent in vivo following implantation of the device into a patient is controlled by the matrix material. - View Dependent Claims (48, 49, 50, 51, 52)
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53. A method for in vivo local delivery of a therapeutic or prophylactic agent in the treatment of orthopedic tissues comprising:
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implanting at a orthopedic tissue site a tip portion of a tube which comprises a first end and a distal second end, wherein the tip portion has located therein a plurality of discrete reservoirs containing a therapeutic or prophylactic agent, the reservoirs having openings sealed by a plurality of discrete reservoir caps; and
actively and selectively disintegrating the reservoir caps to initiate release of the therapeutic or prophylactic agent at the tissue site. - View Dependent Claims (54)
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Specification