Occlusion-crossing devices
First Claim
1. A catheter device for crossing occlusions, the device comprising:
- an elongate catheter shaft;
a rotatable tip configured to rotate relative to the elongate catheter shaft, wherein the rotatable tip includes a housing coupled with the elongate catheter shaft and cutting wedges extendable from the housing;
a drive shaft extending within the elongate catheter shaft, coupled with the wedges, and configured to rotate the rotatable tip; and
an OCT imaging sensor comprising an optical fiber coupled with the rotatable tip and configured to rotate therewith;
wherein the elongate catheter shaft is configured to move axially over the drive shaft to extend and retract the wedges from the housing while maintaining a fixed position of the imaging sensor relative to the cutting wedges.
2 Assignments
0 Petitions
Accused Products
Abstract
A catheter device for crossing occlusions includes an elongate catheter shaft, a rotatable tip configured to rotate relative to the elongate catheter shaft, a drive shaft, and an OCT imaging sensor. The rotatable tip includes a housing coupled with the elongate catheter shaft and cutting wedges extendable from the housing. The drive shaft has a central lumen extending therethrough and extends within the elongate catheter shaft. The drive shaft is coupled with the wedges and is configured to rotate the rotatable tip. The OCT sensor includes an optical fiber coupled with the rotatable tip and configured to rotate therewith. The elongate catheter shaft is configured to move axially over the drive shaft to extend and retract the wedges from the housing while maintaining a fixed position of the imaging sensor relative to the cutting wedges.
-
Citations
19 Claims
-
1. A catheter device for crossing occlusions, the device comprising:
-
an elongate catheter shaft; a rotatable tip configured to rotate relative to the elongate catheter shaft, wherein the rotatable tip includes a housing coupled with the elongate catheter shaft and cutting wedges extendable from the housing; a drive shaft extending within the elongate catheter shaft, coupled with the wedges, and configured to rotate the rotatable tip; and an OCT imaging sensor comprising an optical fiber coupled with the rotatable tip and configured to rotate therewith; wherein the elongate catheter shaft is configured to move axially over the drive shaft to extend and retract the wedges from the housing while maintaining a fixed position of the imaging sensor relative to the cutting wedges. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method of crossing an occlusion, the method comprising:
-
inserting a catheter into a lumen, the catheter including an elongate catheter shaft and a rotatable tip; extending cutting wedges from a housing of the rotatable tip by pulling the elongate catheter shaft proximally; rotating the housing and the cutting wedges by rotating a drive shaft attached to the cutting wedges to cut through tissue within the lumen; and imaging the lumen with an OCT sensor attached to the rotatable tip. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
-
Specification