Systems and methods for clot disruption and retrieval
First Claim
Patent Images
1. A method for thrombus in a blood vessel, said method comprising:
- positioning a catheter within a region of thrombus in the blood vessel;
centering the catheter along an axis of the blood vessel within a positioning cage;
releasing a thrombolytic agent through the catheter to said region;
rotating a macerator to disrupt the clot; and
aspirating disrupted clot through a lumen in the catheter body while rotating a helical rotor in said lumen to assist in aspiration.
7 Assignments
0 Petitions
Accused Products
Abstract
Thrombectomy and other treatments are achieved using a catheter having a positioning cage and a macerator within the positioning cage. The catheter is introduced to a target body lumen, typically a blood vessel, and a positioning cage deployed at a treatment site. The macerator is then operated to disrupt thrombus, clot, or other occlusive materials at the treatment site, and the catheter is used to collect and remove the disruptive materials from the body lumen. In particular examples, the macerator may be radially expansible and optionally rotated and/or axially translated within the positioning cage to effect disruption of the occlusive material.
348 Citations
12 Claims
-
1. A method for thrombus in a blood vessel, said method comprising:
-
positioning a catheter within a region of thrombus in the blood vessel;
centering the catheter along an axis of the blood vessel within a positioning cage;
releasing a thrombolytic agent through the catheter to said region;
rotating a macerator to disrupt the clot; and
aspirating disrupted clot through a lumen in the catheter body while rotating a helical rotor in said lumen to assist in aspiration. - View Dependent Claims (2, 3)
-
-
4. A catheter for removing occlusive material from a body lumen, said catheter comprising:
-
a catheter body having a proximal end, a distal end, and a lumen therethrough;
a radially expansible positioning cage near the distal end of the catheter body;
a radially expansible macerator configured to break up occlusive material within the cage and draw the material into the catheter body lumen; and
a helical rotor within the lumen of the catheter body; and
a connection on the proximal end of the lumen for aspirating material disrupted by the macerator from within the cage. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12)
-
Specification