Catheter for endoluminal delivery of therapeutic agents that minimizes loss of therapeutic
AssigneeSciMed Life Systems, Inc.
InventorToby Freyman
Life of this patent
Estimating the term…
Abstract
The present invention relates to a device and method for endoluminal delivery of fluid, such as therapeutic fluid, into the vessel wall that minimizes loss of the fluid. In one embodiment, a catheter for delivering fluid or therapeutic into a vessel wall is provided, wherein the catheter has at least one injector for delivering fluid and a sealing mechanism for preventing or minimizing passage of fluid through an unengaged injector.
Claims28
A device for delivering fluid into a vessel wall comprising:
- a catheter having a first internal lumen and a second internal lumen;
- an inflatable balloon in fluid communication with the first internal lumen of the catheter and having an exterior surface;
- at least one fluid passageway in fluid communication with the second internal lumen of the catheter, having an exterior surface and mounted on the exterior surface of the inflatable balloon;
- at least one injector mounted on the exterior surface of the fluid passageway and in fluid communication with the fluid passageway and second internal lumen of the catheter;
- and
- a sealing unit for preventing passage of fluid through the injector.
A device for delivering fluid into a vessel wall comprising:
- a catheter having a single internal lumen;
- an inflatable balloon in fluid communication with the internal lumen of the catheter, and having an exterior surface;
- at least one injector mounted on the exterior surface of the inflatable balloon and in fluid communication with the internal lumen of the catheter and the inflatable balloon;
- and
- a sealing unit for preventing passage of fluid through the injector.
A method for delivering therapeutic into a vessel wall comprising:
- inserting a catheter into the vessel of a patient, the catheter having an inflatable balloon with a first internal lumen, a fluid passageway with a second internal lumen, and an injector in fluid communication with the second internal lumen;
- positioning the catheter at a diseased portion of the vessel within the patient;
- inflating the inflatable balloon by forcing fluid into the first internal lumen of the catheter to embed the injector into the vessel wall;
- infusing therapeutic into the vessel wall through the injector by forcing therapeutic fluid into the second internal lumen of the catheter and the fluid passageway;
- and
- selectively sealing an injector that does not embed into a vessel wall.
A method for delivering fluid into a vessel wall comprising:
- inserting a catheter into the vessel of a patient, the catheter having an inflatable balloon with an internal lumen, and an injector in fluid communication with the inflatable balloon;
- positioning the catheter at a diseased portion of the vessel within the patient;
- inflating the inflatable balloon by forcing fluid into the internal lumen of the catheter to embeded the injector into the vessel wall;
- infusing fluid into the wall through the injector;
- and
- selectively sealing an injector that does not embed into a vessel wall.
Dependencies are inferred from the claim text.