Guiding catheter for the coronary sinus
First Claim
1. A guiding catheter for directing an intravascular device within a patient'"'"'s coronary sinus, comprising:
- a) an elongated shaft having a proximal end, a distal end, a port in a distal tip of the shaft, and an inner lumen extending to and in fluid communication with the port in the distal tip which is configured to slidably receive the intravascular device;
b) a relatively stiff proximal shaft section of the elongated shaft;
c) a relatively flexible distal shaft section of the elongated shaft having a length of about 2.5 to about 15 centimeters and having a proximal portion having a flexibility greater than that of the proximal shaft section, and a nontraumatic distal portion having a flexibility greater than that of the proximal portion, at least a section of the lumen in the distal portion being axially aligned with the port in the distal tip of the shaft, and at least one of the portions of the distal section being shaped with a bend to facilitate entry within the patient'"'"'s coronary sinus; and
d) an adapter on the proximal end of the elongated shaft to provide access to the inner lumen extending within the elongated shaft.
5 Assignments
0 Petitions
Accused Products
Abstract
A guiding catheter for delivery of intravascular devices to a patient'"'"'s coronary sinus. The guiding catheter has a relatively stiff proximal section and a relatively flexible distal section, the latter being about 1 to about 6 inches in length and being configured to subselect a branch cardiac vein leading to the coronary sinus. The distal shaft section preferably has a proximal portion which has a flexibility greater than that of the proximal shaft section, and a distal portion which has a flexibility greater than that of the proximal portion of the distal shaft section, and at least one of the distal portion and the proximal portion being shaped with a bend to facilitate entry within the patient'"'"'s coronary sinus. An inflatable balloon may be disposed on the distal shaft section. The guiding catheter is particularly suitable for delivering an intravascular device for sensing electrical activity into a cardiac vein to detect such activity from within the blood vessel.
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Citations
32 Claims
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1. A guiding catheter for directing an intravascular device within a patient'"'"'s coronary sinus, comprising:
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a) an elongated shaft having a proximal end, a distal end, a port in a distal tip of the shaft, and an inner lumen extending to and in fluid communication with the port in the distal tip which is configured to slidably receive the intravascular device; b) a relatively stiff proximal shaft section of the elongated shaft; c) a relatively flexible distal shaft section of the elongated shaft having a length of about 2.5 to about 15 centimeters and having a proximal portion having a flexibility greater than that of the proximal shaft section, and a nontraumatic distal portion having a flexibility greater than that of the proximal portion, at least a section of the lumen in the distal portion being axially aligned with the port in the distal tip of the shaft, and at least one of the portions of the distal section being shaped with a bend to facilitate entry within the patient'"'"'s coronary sinus; and d) an adapter on the proximal end of the elongated shaft to provide access to the inner lumen extending within the elongated shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An intravascular assembly including
a) a guiding catheter for directing an intravascular device within a patient'"'"'s coronary sinus, comprising: -
an elongated shaft having a proximal and distal ends, a port in the distal end and an inner lumen extending to and in fluid communication with the port in the distal end, a relatively stiff proximal shaft section of the elongated shaft, a relatively flexible distal shaft section of the elongated shaft having a length of about 2.5 to about 15 centimeters and having a proximal portion having a flexibility greater than that of the proximal shaft section, and a nontraumatic distal portion having a flexibility greater than that of the proximal portion, and at least one of the portions of the distal section being shaped with a bend to facilitate entry within the patient'"'"'s coronary sinus; and an adapter on the proximal end of the elongated shaft to provide access to the inner lumen extending within the elongated shaft; and b) slidably disposed within the inner lumen of the guiding catheter, an intravascular device for detecting electrical activity of a patient'"'"'s heart from within a cardiac vein thereof which includes an elongated shaft, a plurality of sensing electrodes on a distal extremity of the intravascular device and individual electrical conductors electrically connected to the sensing electrodes. - View Dependent Claims (22, 23, 24)
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25. A method of detecting electrical activity within a patient'"'"'s heart, comprising:
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a) providing a guiding catheter having an elongated shaft having a proximal and distal ends, a port in the distal end and an inner lumen extending to and in fluid communication with the port in the distal end, a relatively stiff proximal shaft section of the elongated shaft, a relatively flexible distal shaft section of the elongated shaft having a length of about 2.5 to about 15 centimeters and having a proximal portion having a flexibility greater than that of the proximal shaft section, and a nontraumatic distal portion having a flexibility greater than that of the proximal portion, and at least one of the portions of the distal section being shaped with a bend to facilitate entry within the patient'"'"'s coronary sinus; and an adapter on the proximal end of the elongated shaft to provide access to the inner lumen extending within the elongated shaft; b) advancing the guiding catheter through the patient'"'"'s peripheral venous system into a right atrium of the patient'"'"'s heart; c) guiding the distal end of the guiding catheter through the coronary sinus ostium into the coronary sinus; d) advancing an intravascular device having sensing electrodes on a distal portion thereof through the inner lumen of the guiding catheter until the distal portion of the intravascular device having sensing electrodes thereon extends out the port in the distal end of the guiding catheter; and e) detecting electrical activity by means of the sensing electrodes on the distal portion of the intravascular device. - View Dependent Claims (26, 27, 28, 29)
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30. A guiding catheter for directing an intravascular device within a patient'"'"'s coronary sinus, comprising:
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a) an elongated shaft having proximal and distal ends, a port in the distal end, a first inner lumen extending therein to a location proximal to a distal extremity of the shaft, and a second inner lumen extending to and in fluid communication with the port in the distal end; b) a proximal shaft section of the elongated shaft; c) a distal shaft section of the elongated shaft having a length of about 2.5 to about 15 centimeters and being shaped with a bend to facilitate entry within the patient'"'"'s coronary sinus; d) an expandable occluding member on the distal shaft section having an interior in fluid communication with the first inner lumen; and e) an adapter on the proximal end of the elongated shaft to provide access to the first and second inner lumens extending within the elongated shaft. - View Dependent Claims (31, 32)
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Specification