TELESCOPING CATHETER DELIVERY SYSTEM FOR LEFT HEART ENDOCARDIAL DEVICE PLACEMENT
First Claim
1. A method of transseptal delivery of an instrument into a heart, comprising:
- employing an elongate first tubular member defining a first lumen extending between a proximal end and a distal end of the first tubular member, the first tubular member having an adjustable portion adjacent its distal end and an elongate second tubular member received within the first tubular member, the second tubular member defining a second lumen extending between a proximal end and a distal end of the second tubular member, the second lumen adapted to receive a puncturing tool and an instrument to be placed in the heart, the second tubular member having a curved portion adjacent its distal end in a relaxed state;
by;
a) advancing the first tubular member such that it extends through a superior entry point into a right atrium of the heart;
b) deflecting the adjustable portion of the first tubular member is toward an atrial septum of the heart;
c) guiding the puncturing tool through the second tubular member and creating a septal puncture;
d) inserting the second tubular member through the septal puncture into a left atrium of the heart;
e) with the first tubular member remaining in the right atrium and with the second tubular member extending through the septal puncture into the left atrium, orienting the curved portion of the second tubular member toward a left ventricle of the heart;
f) with the first tubular member remaining in the right atrium, advancing the second tubular member along the guide into the left ventricle; and
g) with the first tubular member remaining in the right atrium and the second tubular member extending into the left ventricle, advancing the instrument into the left ventricle.
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Accused Products
Abstract
A transseptal catheter delivery system includes an elongate first tubular member and an elongate second tubular member receivable within the first tubular member. The first tubular member includes an adjustable portion adjacent a distal end. The second tubular member is adapted to receive an instrument to be placed in the left ventricle, and includes a curved portion adjacent its distal end in a relaxed state. The adjustable portion is deflectable toward the atrial septum to guide a puncturing tool and/or guide insertion of the second tubular member through a septal puncture into the left atrium. Within the left atrium, the curved portion is oriented toward the left ventricle to guide insertion of a guide wire, and subsequently the second tubular member, into the left ventricle. Methods of transvenously accessing a left ventricle are also provided.
65 Citations
17 Claims
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1. A method of transseptal delivery of an instrument into a heart, comprising:
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employing an elongate first tubular member defining a first lumen extending between a proximal end and a distal end of the first tubular member, the first tubular member having an adjustable portion adjacent its distal end and an elongate second tubular member received within the first tubular member, the second tubular member defining a second lumen extending between a proximal end and a distal end of the second tubular member, the second lumen adapted to receive a puncturing tool and an instrument to be placed in the heart, the second tubular member having a curved portion adjacent its distal end in a relaxed state;
by;a) advancing the first tubular member such that it extends through a superior entry point into a right atrium of the heart; b) deflecting the adjustable portion of the first tubular member is toward an atrial septum of the heart; c) guiding the puncturing tool through the second tubular member and creating a septal puncture; d) inserting the second tubular member through the septal puncture into a left atrium of the heart; e) with the first tubular member remaining in the right atrium and with the second tubular member extending through the septal puncture into the left atrium, orienting the curved portion of the second tubular member toward a left ventricle of the heart; f) with the first tubular member remaining in the right atrium, advancing the second tubular member along the guide into the left ventricle; and g) with the first tubular member remaining in the right atrium and the second tubular member extending into the left ventricle, advancing the instrument into the left ventricle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification