Methods and apparatus to deliver therapeutic, non-ultraviolet electromagnetic radiation versatilely via a catheter residing in a body cavity
Inventors
Barneck, Mitchell D. • Rhodes, Nathaniel L. R. • Allen, James P. • Long, Curtis D.
Assignees
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Publication Number
US-11229808-B2
Publication Date
2022-01-25
Expiration Date
Abstract
Methods and apparatus provide therapeutic electromagnetic radiation (EMR) for inactivating infectious agents in, on or around a catheter residing in a patient's body cavity and/or for enhancing healthy cell growth. Transmitting non-ultraviolet therapeutic EMR substantially axially along an optical element in a lumen of the catheter body and/or the catheter body. Through delivery of the therapeutic EMR to particular infected areas and/or areas requiring tissue healing. The inactivation of the major sources of infection in, on, and around catheters and/or enhance healthy cell growth around catheters is accomplished by utilizing controlled relative intensity and/or treatment region specific dosing of the therapeutic EMR emitted radially from the optical element. Specific embodiments of urinary catheters and peritoneal dialysis catheters are also disclosed.
Core Innovation
The disclosed invention is a medical device assembly for insertion into a catheter that includes an electromagnetic radiation (EMR) source providing non-ultraviolet sterilizing EMR. The assembly includes an EMR conduction system with an optical element comprising a fiber optic disposed within an internal lumen of the catheter, and the fiber optic axially propagates sterilizing EMR within the catheter.
The optical element further includes at least one radial emission portion disposed between a coupling end and a distal end of the fiber body. The radial emission portion emits sterilizing EMR radially into the internal lumen of the catheter, enabling emission through the catheter for therapeutic effect in, on, or around the external segment portion and/or the indwelling portion, with controlled relative intensity of sterilizing EMR to produce a desired therapeutic effect.
The invention also provides non-ultraviolet therapeutic EMR for producing therapeutic effect including inactivating one or more infectious agents and enhancing healthy cell growth. The at least one radial emission portion is disposed at a position such that radially emitted therapeutic EMR is directed to a location along the elongate catheter body for treatment region specific dosing, and the invention is also implemented in a peritoneal dialysis catheter assembly.
Claims Coverage
The independent claims are clm-00001, clm-00010, and clm-00012. Across these claims, the inventive coverage centers on an EMR conduction system using a fiber optic with at least one radial emission portion, delivering non-ultraviolet sterilizing or therapeutic EMR through a catheter with treatment-region-specific radial emission and controlled relative intensity.
Non-ultraviolet sterilizing EMR delivered via a catheter with axial fiber propagation and radial emission
A medical device assembly for insertion into a catheter including an EMR source for providing non-ultraviolet, sterilizing EMR; an EMR conduction system with an optical element comprising a fiber optic disposed within the catheter internal lumen to axially propagate sterilizing EMR; and at least one radial emission portion that emits sterilizing EMR radially into the internal lumen of the catheter.
Controlled relative intensity for desired therapeutic effect in, on, or around catheter portions
The assembly delivers through the at least one radial emission portion controlled relative intensity of sterilizing EMR to produce a desired therapeutic effect in, on, or around the external segment portion, the indwelling portion, or the external segment portion and the indwelling portion of the catheter.
Non-ultraviolet therapeutic EMR with treatment region specific radial emission along the catheter body
A medical device assembly including an EMR source for providing non-ultraviolet, therapeutic EMR; an EMR conduction system with an optical element comprising a fiber optic disposed within the catheter internal lumen to axially propagate therapeutic EMR; and at least one radial emission portion allowing radially emitted therapeutic EMR into the internal lumen, wherein at least one radial emission portion is positioned so emission is directed to a location along the elongate catheter body for treatment region specific dosing of the therapeutic EMR.
Peritoneal dialysis catheter system delivering sterilizing EMR with axial catheter-directed flow and treatment region specific dosing
A medical device assembly for insertion into a peritoneal cavity including an EMR source providing non-ultraviolet, sterilizing EMR; a peritoneal dialysis catheter that directs both dialysis solution and the sterilizing EMR axially relative to the catheter body; an EMR conduction system with an optical element comprising a fiber optic disposed within the catheter internal lumen to axially propagate sterilizing EMR; and at least one radial emission portion allowing sterilizing EMR to be emitted radially into the internal lumen, wherein the radial emission portion is positioned so emission is directed to a location along the catheter body for treatment region specific dosing of the therapeutic sterilizing EMR.
Across the independent claims, the core claim coverage includes a non-ultraviolet EMR source coupled to a fiber-optic EMR conduction system in a catheter, where axial propagation and a radial emission portion enable radially emitted sterilizing or therapeutic EMR to be delivered with controlled relative intensity and positioned for treatment region specific dosing along catheter body portions.
Stated Advantages
Inactivating one or more infectious agents.
Enhancing healthy cell growth.
Producing a desired therapeutic effect in, on, or around catheter portions.
Providing treatment region specific dosing of therapeutic EMR or therapeutic sterilizing EMR.
Documented Applications
A catheter-based medical device assembly for insertion into a catheter to facilitate delivery of a fluid to and/or retrieval of fluid from a patient's body while delivering sterilizing EMR.
A peritoneal cavity medical device assembly using a peritoneal dialysis catheter for delivery of dialysis solution to and/or retrieval of waste dialysis solution, combined with delivery of sterilizing EMR to inactivate infectious agents.
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