Method and apparatus to deliver therapeutic, non-ultraviolet electromagnetic radiation in a dialysis system

A medical device assembly for use in a dialysis system, at least a portion of the medical device assembly being insertable into a patient's body and being for delivery of a fluid to and/or retrieval of fluid from the patient's body, comprising:

• an electromagnetic radiation (EMR) source for providing non-ultraviolet, therapeutic EMR having an intensity comprising a radiant exposure of at least 0.1 J/cm2 and up to 1.0 kJ/cm2 and power of at least 0.005 mW and up to 1 Watt, such intensity being sufficient to produce a therapeutic effect of at least one of inactivating one or more infectious agents and enhancing healthy cell growth;
• a dialysis access having an elongate body with at least one internal lumen, a coupling end and a distal end, the distal end being insertable into the patient's body, wherein the elongate body directs both the fluid and the therapeutic EMR axially relative to the dialysis access, axial flow of the fluid within the dialysis access facilitates at least one of delivery of fluid into the patient's body and retrieval of fluid from the patient's body, the dialysis access being selected from a group consisting of a central venous catheter, an arteriovenous fistula, an arteriovenous graft, a hemodialysis catheter, and a peritoneal catheter;
• an optical element conducive to the axial propagation of the therapeutic EMR relative to the elongate body of the dialysis access, the optical element having a position with respect to the dialysis access of being within at least one internal lumen of the dialysis access, at least a portion of the optical element comprises a fiber optic for disposition within the at least one internal lumen, the fiber optic comprises a fiber body having an exterior surface, a coupling end, a distal end, and a core, the fiber optic being conducive to the axial propagation of therapeutic EMR within the core, the fiber optic further comprises at least one radial emission portion disposed between the coupling end of the fiber body and the distal end of the fiber body, the radial emission portion allowing the emission of therapeutic EMR radially from the fiber body into the internal lumen of the dialysis access;
• at least one coupling to connect the EMR source to the optical element;
• and
• wherein at least one radial emission portion of the fiber body is disposed at a position such that the emission of the therapeutic EMR radially from the fiber body is directed to a location for treatment region specific dosing of the therapeutic EMR.

A medical device assembly for insertion into a peritoneal cavity of a patient's body and for delivery of a fluid to and/or retrieval of fluid from the patient's body, comprising:

• an electromagnetic radiation (EMR) source for providing non-ultraviolet, therapeutic EMR having an intensity comprising a radiant exposure of at least 0.1 J/cm2 and up to 1.0 kJ/cm2 and power of at least 0.005 mW and up to 1 Watt, such intensity being sufficient to produce a therapeutic effect of inactivating one or more infectious agents;
• a peritoneal dialysis catheter having an elongate catheter body with at least one internal lumen, a coupling end and a distal end, the distal end being insertable into the peritoneal cavity of the patient's body, wherein the catheter body directs both the fluid and the therapeutic EMR axially relative to the catheter body, axial flow of the fluid within the catheter body facilitates delivery of fluid into the patient's body and retrieval of fluid from the patient's body;
• at least one fluid extension line external to the patient's body and having at least one fluid lumen;
• an optical element conducive to the axial propagation of the therapeutic EMR relative to the peritoneal dialysis catheter body, the optical element having a position with respect to the peritoneal dialysis catheter body of being within at least one internal lumen of the peritoneal dialysis catheter body, at least a portion of the optical element comprises a fiber optic for disposition within the at least one internal lumen, the fiber optic comprises a fiber body having an exterior surface, a coupling end, a distal end, and a core, the fiber optic being conducive to the axial propagation of therapeutic EMR within the core, the fiber optic further comprises at least one radial emission portion disposed between the coupling end of the fiber body and the distal end of the fiber body, the radial emission portion allowing the emission of therapeutic EMR radially from the fiber body into the internal lumen of the peritoneal dialysis catheter;
• at least one coupling to connect the EMR source to the optical element;
• and
• wherein at least one radial emission portion of the fiber body is disposed at a position such that the emission of the therapeutic EMR radially from the fiber body is directed to a location for treatment region specific dosing of the therapeutic EMR.