Importance

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Abstract

The disclosure is directed to apparatus and techniques that deliver an active agent, such as an antibiotic age nt or loosening agent to a patient by diffusion. An element of the medical device deployed proximate to the cells or host tissue includes a diffusible material, which comprises a lumen. An agent introduced into the lumen diffuses through the diffusible material to the cells or host tissue or tissues. The invention can be applied to medical devices that are placed partially inside a patient, as well as those that are fully implanted. Some embodiments support moving the internal element of a medical device proximate to targeted cells, such as a tumor, and administering an active agent to the targeted cells by diffusion. The disclosure also encompasses a testing system that helps test and develop apparatus and techniques for delivering an agent by diffusion.

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First Claim