SYSTEMS, METHODS AND DEVICES FOR ABLATION, CROSSING, AND CUTTING OF OCCLUSIONS
First Claim
Patent Images
1. A crossing device, comprising, in combination:
- a body coupled to a microcatheter at a proximal end of the microcatheter;
a handle coupled to a blade at a proximal end of the blade, the blade disposed within a lumen of the microcatheter; and
a spring configured to compress as the handle is advanced relative to the body;
wherein a sharpened tip of the blade is configured to advance from a natural position within the lumen of the microcatheter to an extended position beyond a distal end of the microcatheter as the handle is advanced relative to the body;
wherein the spring is configured to expand and retract the blade relative to the microcatheter as the handle is released.
2 Assignments
0 Petitions
Accused Products
Abstract
Ablation, crossing, and cutting systems, devices and associated methods, including a crossing device, comprising, in combination: a spring-enhanced handle and body configured to controllably extend and retract a blade within a microcatheter for addressing an occlusion within a vessel of a patient to provide improved access for supplemental treatment and reperfusion.
-
Citations
20 Claims
-
1. A crossing device, comprising, in combination:
-
a body coupled to a microcatheter at a proximal end of the microcatheter; a handle coupled to a blade at a proximal end of the blade, the blade disposed within a lumen of the microcatheter; and a spring configured to compress as the handle is advanced relative to the body; wherein a sharpened tip of the blade is configured to advance from a natural position within the lumen of the microcatheter to an extended position beyond a distal end of the microcatheter as the handle is advanced relative to the body; wherein the spring is configured to expand and retract the blade relative to the microcatheter as the handle is released. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16)
-
-
11. An improved surgical method for addressing blockage within a vessel, comprising, in combination:
-
delivering an apparatus including at least a microcatheter to a desired treatment situs; positioning the microcatheter having at least a blade proximate to a surface of an occlusion, wherein the microcatheter is attached to a body and comprises a lumen; providing the blade within the lumen of the microcatheter to the surface of the occlusion, wherein the blade is attached to a handle; advancing the blade to an extended position by manipulation of the handle relative to the body; and retracting the blade to a natural position by releasing the handle.
-
-
17. A kit, which comprises:
-
a crossing device further comprising;
a body coupled to a microcatheter at a proximal end of the microcatheter;
a handle coupled to a blade at a proximal end of the blade, the blade disposed within a lumen of the microcatheter;
wherein a sharpened tip of the blade is configured to advance from a natural position within the lumen of the microcatheter to an extended position beyond a distal end of the microcatheter as the handle is advanced relative to the body; anddirections for use. - View Dependent Claims (18, 19, 20)
-
Specification