Deflectable tip guide in guide system
First Claim
1. A system for performing myocardial revascularization comprising:
- a first elongate tube having a distal region, a distal end, a proximal region, a first lumen therethrough, means for bending said distal region, and means for controlling said distal region bending from said proximal region; and
a therapeutic catheter having a distal end slidably disposed within said first tube lumen.
0 Assignments
0 Petitions
Accused Products
Abstract
Guide catheters which can be used in percutaneous myocardial revascularization (PMR) to deliver therapeutic catheters to difficult to reach heart chamber wall regions. Some guide catheters include distal regions which can be bent under control from the proximal region of the catheter. One steerable guide catheter has a flexible distal region, a more proximal, less flexible intermediate region, a first lumen for receiving a therapeutic catheter, and an elongate manipulation member slidably disposed in a second, blind lumen. The elongate manipulation member can be secured off-center near the distal end of the flexible distal region. The distal region can be bent by retracting the manipulation member and straightened by pushing the manipulation member. Controllably bendable guide catheters according to the present invention can be nested inside other, similar guide catheters. The invention also includes means for resisting free rotation of guide catheters relative to other adjacent catheters or tubes.
58 Citations
17 Claims
-
1. A system for performing myocardial revascularization comprising:
-
a first elongate tube having a distal region, a distal end, a proximal region, a first lumen therethrough, means for bending said distal region, and means for controlling said distal region bending from said proximal region; and
a therapeutic catheter having a distal end slidably disposed within said first tube lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A guiding catheter system for performing myocardial revascularization comprising:
-
a first guide tube having a proximal region and a first lumen therethrough, said first lumen having an inside surface;
a second guide tube having a proximal region and a second lumen therethrough, said second guide tube being disposed at least partially in said first tube first lumen and having an outer surface opposing said first tube inside surface; and
means for resisting free rotation between said first and second tubes. - View Dependent Claims (13, 14, 15)
-
-
16. A guide catheter for performing myocardial revascularization comprising:
-
an elongate tube having a distal region, a distal end, a proximal region, a first lumen therethrough, and a longitudinal center axis;
a second lumen extending from said proximal region to at least said distal region; and
an elongate manipulation member disposed in said second lumen, being accessible from said proximal region, and being operably secured to said tube distal region at a location off-center from said tube longitudinal center axis, such that said-tube distal region can be bent by proximally pulling on said manipulation member. - View Dependent Claims (17)
-
Specification