High speed chronic total occlusion crossing devices
First Claim
Patent Images
1. An occlusion crossing device comprising:
- an outer shaft;
an inner shaft extending within the outer shaft, the inner shaft including a drill tip at a distal end thereof;
an optical fiber extending within the inner shaft substantially along a central axis of the inner shaft, a distal tip of the optical fiber attached to the drill tip; and
a handle attached to the inner shaft and the outer shaft and configured rotate the inner shaft and drill tip at speeds of greater than 500 rotations per minute,wherein the inner shaft is removably coupled with the outer shaft such that the inner shaft moves longitudinally with respect to the outer shaft when a force is applied to the inner shaft in a longitudinal direction to allow the outer shaft to bend with respect to the central axis while coupled to the inner shaft.
1 Assignment
0 Petitions
Accused Products
Abstract
An occlusion crossing device includes an outer shaft, an inner shaft, an optical fiber, and a handle attached to the inner shaft and the outer shaft. The inner shaft extends within the outer shaft. The inner shaft includes a drill tip at a distal end thereof. The optical fiber extends within the inner shaft substantially along a central axis of the inner shaft. The distal tip of the optical fiber is attached to the drill tip. The handle is configured to rotate the inner shaft and drill tip at speeds of greater than 500 rpm.
-
Citations
31 Claims
-
1. An occlusion crossing device comprising:
-
an outer shaft; an inner shaft extending within the outer shaft, the inner shaft including a drill tip at a distal end thereof; an optical fiber extending within the inner shaft substantially along a central axis of the inner shaft, a distal tip of the optical fiber attached to the drill tip; and a handle attached to the inner shaft and the outer shaft and configured rotate the inner shaft and drill tip at speeds of greater than 500 rotations per minute, wherein the inner shaft is removably coupled with the outer shaft such that the inner shaft moves longitudinally with respect to the outer shaft when a force is applied to the inner shaft in a longitudinal direction to allow the outer shaft to bend with respect to the central axis while coupled to the inner shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A method of crossing an occlusion, comprising:
-
inserting a device into a vessel having an occlusion therein, the device having an inner shaft having an optical fiber coupled thereto and removably coupled to an outer shaft; causing a distal end of the device to bend with respect to a central axis of the device by applying a force to the inner shaft in a longitudinal direction while the inner shaft is coupled with the outer shaft; rotating the inner shaft relative to the outer shaft such that a drill tip on the inner shaft drills through the occlusion; and generating images with the optical fiber at a rate of greater than or equal to 8 frames per second while rotating the inner shaft. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
-
Specification