Vascular catheter, system, and method
First Claim
1. A catheter, comprising:
- an elongate body having a first lumen extending between a proximal end and a distal end of the elongate body;
a first cutting head having a blade and an elongate pulling member, the first cutting head positioned proximal the distal end of the elongate body with the elongate pulling member extending through the first lumen, wherein the elongate pulling member slides within the first lumen to move the first cutting head relative the distal end of the elongate body; and
a second cutting head having a blade, the second cutting head positioned adjacent the distal end of the elongate body between the distal end and the first cutting head, where the blade of the first cutting head moves relative the blade of the second cutting head to provide a shearing action for cardiac tissue.
1 Assignment
0 Petitions
Accused Products
Abstract
A catheter including an elongate body, a first cutting head and a second cutting head both having a blade, where the blades moves relative each other to provide a shearing action for cardiac tissue. The catheter can further include a stent positioned over an inflatable balloon, where the inflatable balloon can deploy the expandable stent over sheared cardiac tissue. The catheter can further be included in a system having a sheath, where at least a part of the catheter resides in the lumen of the sheath. The sheath further includes a cardiac valve and an expandable filter. The sheath can move relative the cardiac valve and the expandable filter to deploy the cardiac valve and at least a portion of the expandable filter proximal the inflatable balloon and the expandable stent.
-
Citations
31 Claims
-
1. A catheter, comprising:
-
an elongate body having a first lumen extending between a proximal end and a distal end of the elongate body;
a first cutting head having a blade and an elongate pulling member, the first cutting head positioned proximal the distal end of the elongate body with the elongate pulling member extending through the first lumen, wherein the elongate pulling member slides within the first lumen to move the first cutting head relative the distal end of the elongate body; and
a second cutting head having a blade, the second cutting head positioned adjacent the distal end of the elongate body between the distal end and the first cutting head, where the blade of the first cutting head moves relative the blade of the second cutting head to provide a shearing action for cardiac tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An system, comprising:
-
an elongate catheter body having a first lumen and a second lumen extending between a proximal end and a distal end of the elongate body;
a first cutting head having a blade and an elongate pulling member, the first cutting head positioned proximal the distal end of the elongate body with the elongate pulling member extending through the first lumen, wherein the elongate pulling member slides within the first lumen to move the first cutting head relative the distal end of the elongate body;
a second cutting head having a blade, the second cutting head positioned adjacent the distal end of the elongate body between the distal end and the first cutting head;
an inflatable balloon positioned adjacent the distal end of the elongate body and proximal to the second cutting head, the expandable balloon member in fluid tight communication with the second lumen;
an expandable stent positioned over at least a portion of the inflatable balloon, where the blade of the first cutting head moves relative the blade of the second cutting head to provide a shearing action for cardiac tissue and the inflatable balloon deploys the expandable stent over sheared cardiac tissue;
a sheath having a lumen, wherein at least part of the elongate body resides in the lumen of the sheath;
a cardiac valve including a support frame having an outer surface, an inner surface defining a lumen and a cover over at least the outer surface of the support frame, the cover includes surfaces defining a reversibly sealable opening for unidirectional flow of a liquid through the lumen of the cardiac valve, wherein the cardiac valve releasably positioned within the lumen of the sheath and has the elongate body of the catheter extending through the lumen and the reversibly sealable opening; and
an expandable filter positioned within the lumen of the sheath adjacent the elongate body and proximal the cardiac valve, wherein the sheath moves relative the cardiac valve and the expandable filter to deploy the cardiac valve and at least a portion of the expandable filter proximal the inflatable balloon and the expandable stent. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
-
-
19. A method, comprising:
-
positioning at least part of a catheter having a first cutting head with a blade and a second cutting head with a blade at a predetermined location; and
moving the blade of the first cutting head relative the blade of the second cutting head to shear cardiac tissue at the predetermined location. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
-
-
27. A method, comprising:
-
providing an elongate body having a first lumen and a second lumen extending between a proximal end and a distal end of the elongate body;
positioning a first cutting head having a blade proximal the distal end of the elongate body;
positioning a second cutting head having a blade adjacent the distal end of the elongate body between the distal end and the first cutting head;
positioning an inflatable balloon adjacent the distal end of the elongate body and proximal to the second cutting head, the expandable balloon member in fluid tight communication with the second lumen; and
positioning an expandable stent over at least a portion of the inflatable balloon, where the blade of the first cutting head moves relative the blade of the second cutting head to provide a shearing action. - View Dependent Claims (28, 29, 30, 31)
-
Specification