Delivery catheter system for heart chamber
First Claim
1. A catheter system for the delivery of a therapeutic or diagnostic agent, comprising:
- a) a first elongated delivery catheter which has proximal and distal ends, a port in the distal end, an inner lumen extending therein to and in fluid communication with the port in the distal end, a relatively straight main shaft section and a shaped distal shaft section having at least one segment forming an angle with respect to a proximally adjacent portion of the main shaft section;
b) a second elongated delivery catheter which is slidably and rotatably disposed within the inner lumen of the first delivery catheter, which is longer than the first delivery catheter and which has proximal and distal ends, a port in the distal end, an inner lumen, an elongated main shaft section at least a portion of which is substantially alignable with a discharge axis of the first delivery catheter and a shaped distal shaft section at least a portion of which is substantially alignable with the discharge axis of the first delivery catheter and which is configured to have a discharge axis at an angle with respect to a portion of the main shaft section thereof aligned with the discharge axis of the first delivery catheter; and
c) a substance delivery member which is slidably disposed within the second delivery catheter, which has a distal extremity configured for intracorporeal delivery of a diagnostic or therapeutic substance into a patient'"'"'s tissue.
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Accused Products
Abstract
A delivery catheter system for delivering a substance delivery member into a patient'"'"'s left ventricle which includes a first delivery catheter with a shaped distal extremity configured to be aligned with or parallel to a longitudinal axis or long dimension of the patient'"'"'s left ventricle and a second delivery catheter slidably and rotatably disposed within an inner lumen of the first delivery catheter which has a shaped distal shaft section and an inner lumen configured to slidably receive a substance delivery member such as an elongated cannula slidably disposed within a polymer sheath. The shaped distal section of the first delivery catheter is shaped or is shapeable within the patient'"'"'s heart chamber. The second delivery catheter is advanced out of the inner lumen of the first delivery catheter until the distal end extends out of the port in the distal end of the first delivery catheter and provides a passageway for substance delivery member to engage the endocardial surface at a perpendicular or near perpendicular orientation.
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Citations
46 Claims
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1. A catheter system for the delivery of a therapeutic or diagnostic agent, comprising:
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a) a first elongated delivery catheter which has proximal and distal ends, a port in the distal end, an inner lumen extending therein to and in fluid communication with the port in the distal end, a relatively straight main shaft section and a shaped distal shaft section having at least one segment forming an angle with respect to a proximally adjacent portion of the main shaft section;
b) a second elongated delivery catheter which is slidably and rotatably disposed within the inner lumen of the first delivery catheter, which is longer than the first delivery catheter and which has proximal and distal ends, a port in the distal end, an inner lumen, an elongated main shaft section at least a portion of which is substantially alignable with a discharge axis of the first delivery catheter and a shaped distal shaft section at least a portion of which is substantially alignable with the discharge axis of the first delivery catheter and which is configured to have a discharge axis at an angle with respect to a portion of the main shaft section thereof aligned with the discharge axis of the first delivery catheter; and
c) a substance delivery member which is slidably disposed within the second delivery catheter, which has a distal extremity configured for intracorporeal delivery of a diagnostic or therapeutic substance into a patient'"'"'s tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method for performing a therapeutic or diagnostic procedure in a region of a wall of a patient'"'"'s heart defining a heart chamber, comprising:
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a) introducing into a peripheral artery of the patient a delivery catheter system which includes;
a first delivery catheter having an elongated shaft which has proximal and distal ends, a port in the distal end and an inner lumen extending therein to and in fluid communication with the port in the distal end, a relatively straight main shaft section and a shaped distal shaft section forming an angle with respect to a proximally adjacent portion of the main shaft section so that the distal section has a discharge axis which is generally aligned with or parallel to longitudinal axis of the patient'"'"'s left ventricle; and
a second elongated delivery catheter which is slidably and rotatably disposed within the inner lumen of the first delivery catheter, which is longer than the first delivery catheter and which has proximal and distal ends, a port in the distal end, an inner lumen extending to and in fluid communication with the port in the distal end, an elongated main shaft section and a shaped distal shaft section configured to have a discharge axis at an angle of about 80°
to about 135°
with respect to a portion of the main shaft section of the second delivery catheter which is substantially aligned with the discharge axis of the first delivery catheter so as to be normal to said region of the heart wall, anda substance delivery member having a distal extremity which is configured to extend beyond the distal end of the second delivery catheter configured to deliver a diagnostic or therapeutic substance to the wall of the patient'"'"'s heart;
b) advancing at least the first delivery catheter through the patient'"'"'s arterial system until the shaped distal shaft section of the first delivery catheter extends into the patient'"'"'s left ventricle substantially aligned with or parallel to the longitudinal axis of the left ventricle;
c) advancing the second delivery catheter within the first delivery catheter until at least a portion of the shaped distal shaft section of the second delivery catheter extends out the port in the distal end of the first delivery catheter; and
d) positioning the second delivery catheter within the left ventricle so that the shaped distal shaft section thereof is substantially normal to the region of the heart wall where the procedure is to be performed; and
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e) extending the distal extremity of the substance delivery member until the distal end thereof is in a position to deliver a diagnostic or therapeutic substance into the patient'"'"'s heart wall. - View Dependent Claims (39, 40, 41, 42)
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43. A method for developing neovasculogenesis within a region of a patient'"'"'s heart wall defining a heart chamber, comprising:
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a) advancing a first delivery catheter through the patient'"'"'s vasculature until a distal section of the first delivery catheter extends into the patient'"'"'s heart chamber and is substantially aligned with or parallel to a longitudinal axis of the heart chamber;
b) advancing a second delivery catheter through an inner lumen of the first delivery catheter until a shaped distal section of the second delivery catheter extends out of the distal end of the first delivery catheter;
c) adjusting the position of the second delivery catheter until a discharge axis of the second delivery catheter is substantially normal to the region of the heart wall in which the neovasculogenesis is to be developed;
d) advancing a substance delivery member from the distal end of the second delivery catheter until the distal end of the substance delivery member penetrates into the desired region of the patient'"'"'s heart wall; and
e) delivering an neovasculogenesis agent through the distal extremity of the substance delivery member within the heart wall to develop angiogenesis therein. - View Dependent Claims (44)
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45. A delivery catheter system for delivering a therapeutic substance in a desired region of a wall of a patient'"'"'s heart, comprising:
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a) a first delivery catheter which has proximal and distal ends, a port in the distal end, an inner lumen extending to and in communication with the port in the distal end, an elongated proximal section with a longitudinal axis and a distal section which is shorter than the proximal section, with the distal shaft section shaped so as to be directed toward the desired region of the heart wall and which includes a proximal portion having a longitudinal axis and extending at an angle of about 50°
to about 130°
from the longitudinal axis of the proximal section and a distal portion which is at an angle of about 50°
to about 130°
from the longitudinal axis of the proximal portion; and
b) a substance delivery member slidably disposed within the inner lumen of the first delivery catheter and configured to have a distal end which extends out of the port in the distal end of the first delivery catheter.
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46. A delivery catheter system for percutaneously delivering diagnostic or therapeutic substances into a patient'"'"'s heart comprising:
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a) a first delivery catheter which has proximal and distal ends, a port in the distal end, an inner lumen extending therein to and in communication with the port in the distal end, a main shaft portion and a distal shaft portion which is configured to extend at least into the patient'"'"'s ascending aorta and having a discharge axis; and
b) a second delivery catheter which is slidably disposed within the inner lumen of the first delivery catheter, which is longer than the first delivery catheter, and which has proximal and distal ends, a port in the distal end, an inner lumen extending therein to and in fluid communication with the port in the distal end of the second delivery catheter and a distal extremity having discharge axis at an angle of at least 30°
from the discharge axis of the first catheter; and
c) a substance delivery member which is slidably disposed within the inner lumen of the second delivery catheter and which is configured to extend out the port in the distal end of the second delivery catheter to engage a portion of a patient'"'"'s heart.
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Specification