Coronary vein navigator
First Claim
1. A guide catheter system, comprising:
- a guide catheter comprising a flexible shaft defining a longitudinal axis and having a proximal end, a distal end, and a main lumen;
a navigator catheter having a proximal end, a distal end, and a central lumen, the navigator catheter longitudinally displaceable within the main lumen of the guide catheter, the distal end of the navigator catheter dimensioned for passage into an angled vein distal to a patient'"'"'s coronary sinus ostium, the central lumen dimensioned to receive a longitudinally displaceable guide wire; and
a deflection arrangement provided at the distal end of the navigator catheter for directing the guide wire into the angled vein, the deflection arrangement imparting a bend at the distal end of the navigator catheter having an angle sufficient to facilitate passage of the distal end of the navigator catheter into the angled vein.
2 Assignments
0 Petitions
Accused Products
Abstract
A system and method for navigating coronary vasculature involves use of a guide catheter system which includes a guide catheter, a navigator catheter longitudinally displaceable within the guide catheter, and a deflection arrangement provided at a distal end of the navigator catheter. The guide catheter is advanced to at least a patient'"'"'s coronary sinus ostium, and the navigator catheter is extended from the guide catheter to a location proximate or within an angled vein distal to the coronary sinus ostium. Using the deflection arrangement, a guide wire passing through the navigation catheter is directed into the angled vein. A lead having an open lumen is advanced over the guide wire to direct the lead to an implant site within the angled vein.
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Citations
71 Claims
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1. A guide catheter system, comprising:
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a guide catheter comprising a flexible shaft defining a longitudinal axis and having a proximal end, a distal end, and a main lumen;
a navigator catheter having a proximal end, a distal end, and a central lumen, the navigator catheter longitudinally displaceable within the main lumen of the guide catheter, the distal end of the navigator catheter dimensioned for passage into an angled vein distal to a patient'"'"'s coronary sinus ostium, the central lumen dimensioned to receive a longitudinally displaceable guide wire; and
a deflection arrangement provided at the distal end of the navigator catheter for directing the guide wire into the angled vein, the deflection arrangement imparting a bend at the distal end of the navigator catheter having an angle sufficient to facilitate passage of the distal end of the navigator catheter into the angled vein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A guide catheter system, comprising:
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a guide catheter comprising a flexible shaft defining a longitudinal axis and having a proximal end, a distal end, and a main lumen;
a navigator member having a proximal end and a distal end, the navigator member longitudinally displaceable within the main lumen of the guide catheter, the distal end of the navigator member dimensioned for passage into an angled vein distal to a patient'"'"'s coronary sinus ostium; and
a deflection arrangement provided at the distal end of the navigator member, the deflection arrangement imparting a bend at the distal end of the navigator member having an angle sufficient to facilitate passage of the distal end of the navigator member into the angled vein. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A guide catheter system, comprising:
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a guide catheter comprising a flexible shaft and having a proximal end, a distal end, and a main lumen;
a navigator catheter having an outer wall including an aperture, a central lumen, a proximal end, and a distal end, the navigator catheter longitudinally displaceable within the main lumen of the guide catheter, the distal end of the navigator catheter dimensioned for passage into a cardiac vein distal to a patient'"'"'s coronary sinus ostium; and
a deflection member disposed within the central lumen of the navigator catheter proximate the aperture of the outer wall, the deflection member oriented at an angle relative to a longitudinal axis of the navigator catheter sufficient to deflect a guide wire passed within the central lumen through the aperture of the outer wall of the navigator catheter and into an angled vein branching from the cardiac vein. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A method of navigating coronary vasculature, comprising:
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providing a guide catheter system comprising a guide catheter, a navigator catheter longitudinally displaceable within the guide catheter, and a deflection arrangement provided at a distal end of the navigator catheter;
advancing the guide catheter to at least a patient'"'"'s coronary sinus ostium;
extending the navigator catheter from the guide catheter to a location proximate or within an angled vein distal to the coronary sinus ostium;
using the deflection arrangement to direct a guide wire passing through the navigation catheter into the angled vein; and
advancing a lead having an open lumen over the guide wire to direct the lead to an implant site within the angled vein. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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60. A method of navigating coronary vasculature, comprising:
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providing a guide catheter system comprising a guide catheter, a navigator catheter longitudinally displaceable within the guide catheter, and a deflection arrangement provided at a distal end of the navigator catheter;
advancing the guide catheter to at least a patient'"'"'s coronary sinus ostium;
extending the navigator catheter from the guide catheter to a location proximate an angled vein distal to the coronary sinus ostium;
seating the navigator catheter within the angled vein;
passing the guide catheter over the navigator catheter to advance the guide catheter into the angled vein;
retracting the navigator catheter from the guide catheter; and
advancing a lead through the guide catheter to an implant site within the angled vein. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71)
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Specification