Implantable prosthetic devices containing timed release therapeutic agents
First Claim
1. An implantable prosthetic device comprising an implantable prosthesis and a drug delivery device installed in the prosthesis, the implantable prosthesis having an outer surface contour and the installed drug delivery device having a solid outer surface and an outer surface contour, the drug delivery device being installed within a recess in the outer surface contour of the implantable prosthesis whereby the outer surface contour of the installed drug delivery device generally follows the outer surface contour of the implantable prosthesis, the drug delivery device being operable for releasing a therapeutic agent into the body of an animal following implantation of the prosthetic device within the body of the animal, the drug delivery device comprising a biodegradable polymer and a therapeutic agent, the therapeutic agent being released into the body of the animal during biodegradation of the biodegradable polymer over a predefined dosing period.
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Accused Products
Abstract
Bioabsorbable drug delivery devices including modular drug delivery devices having shapes and sizes adapted to be inserted within a recess on the surface of an implantable prosthesis are disclosed. The devices may be attached to one another to create custom drug delivery devices having controllable drug release characteristics that depend on the composition of individual modules comprising the device. The modules may be cylinders, disks, tiles or tubes comprised of a bioabsorbable polymer and a therapeutic agent. The therapeutic agent(s) may be homogeneously distributed throughout the polymeric body of the device or contained within a cavity within a module comprising the device, or both. The device(s) may be threaded or attached to a prosthesis by a biodegradable adhesive. The modular devices may also be formed into tapered plugs for insertion into a mating receptacle. In another embodiment, the drug delivery device may be inserted within a mesh bag that may be attached to a soft tissue as, for example, by sutures, for localized controlled dispensation of a therapeutic agent.
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Citations
16 Claims
- 1. An implantable prosthetic device comprising an implantable prosthesis and a drug delivery device installed in the prosthesis, the implantable prosthesis having an outer surface contour and the installed drug delivery device having a solid outer surface and an outer surface contour, the drug delivery device being installed within a recess in the outer surface contour of the implantable prosthesis whereby the outer surface contour of the installed drug delivery device generally follows the outer surface contour of the implantable prosthesis, the drug delivery device being operable for releasing a therapeutic agent into the body of an animal following implantation of the prosthetic device within the body of the animal, the drug delivery device comprising a biodegradable polymer and a therapeutic agent, the therapeutic agent being released into the body of the animal during biodegradation of the biodegradable polymer over a predefined dosing period.
Specification