Expandable myocardial implant
First Claim
Patent Images
1. An apparatus for use in a coronary artery bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall, the apparatus comprising;
- a hollow blood flow conduit having a first end sized to be inserted into and retained within the heart wall of a heart chamber containing oxygenated blood with an opening of the first end in blood-flow communication with blood contained within the chamber, said first end having sufficient radial rigidity to resist collapse of said first end in response to contraction of said heart;
the conduit having a second end sized to be connected to the coronary vessel with an opening of the second end in blood flow communication with a lumen of the coronary vessel, said second end being radially expandable within said vessel; and
the conduit defining a blood flow path between the openings of the first and second ends.
3 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for performing coronary artery bypass surgery establishes a channel leading directly from a chamber of a heart into a coronary artery. The coronary artery bypass procedure may be performed with or without cardiopulmonary bypass.
-
Citations
28 Claims
-
1. An apparatus for use in a coronary artery bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall, the apparatus comprising;
-
a hollow blood flow conduit having a first end sized to be inserted into and retained within the heart wall of a heart chamber containing oxygenated blood with an opening of the first end in blood-flow communication with blood contained within the chamber, said first end having sufficient radial rigidity to resist collapse of said first end in response to contraction of said heart;
the conduit having a second end sized to be connected to the coronary vessel with an opening of the second end in blood flow communication with a lumen of the coronary vessel, said second end being radially expandable within said vessel; and
the conduit defining a blood flow path between the openings of the first and second ends. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. An apparatus for use in a coronary artery bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall, the apparatus comprising;
-
a hollow blood flow conduit having a first end sized to be inserted into and retained within the heart wall of a heart chamber containing oxygenated blood with an opening of the first end in blood-flow communication with blood contained within the chamber, said first end having sufficient radial rigidity to resist collapse of said first end in response to contraction of said heart;
the conduit having a second end sized to be connected to the coronary vessel with an opening of the second end in blood flow communication with a lumen of the coronary vessel, said second end being radially expandable within said vessel; and
the conduit defining a blood flow path between the openings of the first and second ends, wherein the conduit includes a reservoir for accumulating blood from the conduit during periods of high blood pressure and for discharging accumulated blood into the conduit during periods of low blood pressure. - View Dependent Claims (10)
-
-
11. A method for performing a coronary bypass procedure at a coronary vessel disposed lying on an exterior of a heart wall of a heart having a heart chamber, the method comprising:
-
A. selecting a hollow blood flow conduit having;
a. a first end sized for being inserted into and retained within the heart wall of a heart chamber containing oxygenated blood with an opening of the first end in blood-flow communication with blood contained within the chamber;
b. the conduit having a second end sized for being inserted into the coronary vessel with an opening of the second end in blood flow communication with a lumen of the coronary vessel, said second end being radially expandable within said vessel; and
c. the conduit defining a blood flow path between the openings of the first and second ends;
B. inserting the first end of the conduit through the heart wall with the first end in blood flow communication with the heart chamber;
C. placing the second end of the conduit into the vessel and radially expanding the second end within the vessel. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. An apparatus for use in a coronary artery bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall, the apparatus comprising;
-
a hollow blood flow conduit having a first end sized for being inserted into and retained within the heart wall of a heart chamber containing oxygenated blood with an opening of the first end in blood-flow communication with blood contained within the chamber, said first end having a solid wall construction within said heart wall and sufficient radial rigidity to resist collapse of said first end in response to contraction of said heart;
the conduit having a second end sized to be connected to the coronary vessel with an opening of the second end in blood flow communication with a lumen of the coronary vessel, said second being radially expandable within said vessel; and
the conduit defining a blood flow path between the openings of the first and second ends. - View Dependent Claims (23)
-
-
24. A method for performing a coronary bypass procedure at a coronary vessel disposed lying on an exterior of a heart wall of a heart having a heart chamber, the method comprising:
-
A. selecting a hollow blood flow conduit having;
a. a first end sized to be inserted into and retained within the heart wall of a heart chamber containing oxygenated blood with an opening of the first end in blood-flow communication with blood contained within the chamber, said first end having sufficient radial rigidity to resist collapse of said first end in response to contraction of said heart, said first end remaining open during both systole and diastole;
b. the conduit having a second end sized to be inserted into the coronary vessel with an opening of the second end in blood flow communication with a lumen of the coronary vessel, said second end being radially expandable within said vessel; and
c. the conduit defining a blood flow path between the openings of the first and second ends;
B. inserting the first end of the conduit through the heart wall with the first end in blood flow communication with the heart chamber;
C. placing the second end of the conduit into the vessel and radially expanding the second end within the vessel. - View Dependent Claims (25, 26, 27, 28)
-
Specification