Patent ID: 11925769
Assignee: PROMEDICA HEALTH SYSTEM, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 14:
15. A method of treating a heart of a patient using a concentric two-tube catheter device including an inner tubular member and an outer tubular member, the method comprising:
advancing the catheter device through an artery to the heart of the patient;
extending a guide wire through a distal end of the inner tubular member across an aortic valve of the heart of the patient;
advancing the catheter device into a ventricle of the heart of the heart of the patient; and
retracting the outer tubular member relative to the inner tubular member to expose a distal end of the inner tubular member from a distal end of the outer tubular member, the distal end of the outer tubular member providing a first shape, the distal end of the inner tubular member providing a second shape upon exposure thereof, wherein the first shape and the second shape are different,
wherein the outer tubular member is attached to a control element and the inner tubular member is attached to a handle body of the catheter device, wherein the retracting of the outer tubular member relative to the inner tubular member to expose the distal end of the inner tubular member from the distal end of the outer tubular member includes the control element sliding relative to the handle body, wherein the catheter device defines a first flow path in fluid communication with the distal end of the inner tubular member and a second flow path in fluid communication with the distal end of the outer tubular member, wherein the first flow path includes an interior of the inner tubular member and the second flow path includes an opening extending through the control element from an outer surface thereof to an inner surface thereof and an annular space disposed between the inner tubular member and the outer tubular member, wherein the first flow path is fluidly separated from the second flow path following the retracting of the outer tubular member relative to the inner tubular member to expose the distal end of the inner tubular member from the distal end of the outer tubular member.