System and method for removing blood containing contrast dye

Abstract

The system for removing blood containing contrast dye includes an inner catheter having a fixed proximal end and a distal free end, and an outer catheter coaxially disposed around a portion of the inner catheter, defining an inner channel and an annular outer channel. The fixed end of the inner catheter is coincident with the proximal end of the outer catheter, and the distal end of the inner catheter extends outward from the outer catheter. An annular suction orifice is defined between the distal end of the outer catheter and the inner catheter. First and second balloons are mounted adjacent the distal ends of the outer and inner catheters. The distal free end of the inner catheter extends beyond the second balloon. In use, the first and second balloons are inflated in the coronary sinus and blood containing contrast dye is then removed from between the first and second balloons.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to coronary angioplasty devices and procedures, and particularly to a system and method for removing blood containing contrast media, or dye, that provides for the removal of the contrast media used during angioplasty procedures from the coronary sinus of a patient's heart before the blood containing the media enters the right atrium and circulates through the bloodstream to the kidneys, potentially causing contrast-induced nephropathy (CIN).[0003]2. Description of the Related Art[0004]Percutaneous transluminal coronary angioplasty is frequently used in treating coronary atherosclerosis, which produces areas of blockage within a coronary artery. However, prior to performing percutaneous transluminal coronary angioplasty, and during the procedure itself, iodine containing dye or other contrast material is injected into a patient's coronary arteries through a catheter. This iodine solution is...

AI Technical Summary

Benefits of technology

The patent describes a medical procedure for accessing the coronary sinus in the heart to perform a procedure. The method involves inserting a catheter system into the coronary sinus through the patient's vein. The catheter system has a curved shape that makes it easier to place in the coronary sinus. Balloons are inflated to anchor the catheter in place and remove blood containing contrast solution. The catheter system is designed to prevent damage to the inner wall of the coronary sinus vein and can be easily positioned in place. The technical effect is to provide a safe and reliable method for accessing the coronary sinus for medical procedures.

Problems solved by technology

The system and method for removing blood containing radiographic contrast media used for angioplasty procedures relates to the removal of blood containing contrast dye solution from the coronary sinus of the patient's heart before the blood containing the dye enters the right atrium and circulates through the bloodstream to the kidneys, potentially causing contrast-induced nephropathy (CIN).