Coronary artery by-pass method and associated catheter
First Claim
Patent Images
1. A surgical method comprising the steps of:
- providing a collapsible stent made of a biocompatible material and having an inherent spring bias tending to form the stent into a substantially tubular opened configuration; and
disposing said stent in a wall of a patient'"'"'s heart so that said stent extends between the left ventricle of the heart and a coronary artery, whereupon the stent opens and allows blood to flow from said left ventricle into the coronary artery during diastole and is closed by heart contraction during systole, said stent being essentially coextensive with said wall upon disposition of said stent in said wall, said stent adapted to extend only within said wall and not extend into the left ventricle or the coronary artery.
0 Assignments
0 Petitions
Accused Products
Abstract
A coronary-bypass method uses a collapsible stent made of a biocompatible material and having an inherent spring bias tending to form the stent into a substantially tubular opened configuration. The stent is disposed in a wall of a patient'"'"'s heart so that the stent extends between the left ventricle of the heart and a coronary artery. Upon placement, the stent opens and allows blood to flow from the left ventricle into the coronary artery during diastole and is closed by heart contraction during systole.
-
Citations
17 Claims
-
1. A surgical method comprising the steps of:
-
providing a collapsible stent made of a biocompatible material and having an inherent spring bias tending to form the stent into a substantially tubular opened configuration; and disposing said stent in a wall of a patient'"'"'s heart so that said stent extends between the left ventricle of the heart and a coronary artery, whereupon the stent opens and allows blood to flow from said left ventricle into the coronary artery during diastole and is closed by heart contraction during systole, said stent being essentially coextensive with said wall upon disposition of said stent in said wall, said stent adapted to extend only within said wall and not extend into the left ventricle or the coronary artery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13)
-
-
12. A method for supplying blood to the heart, comprising the steps of:
-
during diastole, expanding a stent in a wall of the heart between the left ventricle of the heart and a coronary artery to thereby form an opening directly from said left ventricle into said coronary artery through said wall and allowing blood to flow from said left ventricle into said coronary artery through said wall; and during systole, collapsing said stent and thereby closing said opening to block direct communication from said left ventricle into said coronary artery through said wall.
-
-
14. An angioplastic surgical method comprising the steps of:
-
providing an intravascular measurement device; inserting said device into a vascular system of a patient; moving said device through the patient'"'"'s vascular system to the patient'"'"'s heart; operating said device to measure a thickness of a wall of the patient'"'"'s heart; upon determining the wall thickness, providing a collapsible stent having a length at least approximately equal to said thickness; inserting said stent into the patient'"'"'s vascular system; moving said stent through the patient'"'"'s vascular system to the patient'"'"'s heart; and disposing said stent in the wall of patient'"'"'s heart so that said stent is essentially coextensive with said wall. - View Dependent Claims (15, 16, 17)
-
Specification