Fiber optic catheter with twistable tip

Details Fiber optic catheter with twistable tip Fiber optic catheter with twistable tip

1994-11-03

1995-07-04

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

600182, A61M 3700, A61B 100

Patent

active

054296048

ABSTRACT:
The present invention is a catheter with a twistable tip. The catheter having a flexible wall for use in complex twisting anatomy contains a torque wire or a torquable guide wire lumen. The torque wire or torquable guide wire lumen extends through the length of the catheter and is attached to the catheter at or near the distal end thereof. The distal face of the catheter is angled to self align the catheter with an obstruction upon insertion. The proximal end of the torque wire protrudes from the proximal end of the catheter and is attached to a turn limiter. Rotation of the turn limiter imparts a torque to the torque wire or torquable guide wire lumen which is transmitted through the catheter to the distal end of the catheter where the applied torque twists the distal tip to manually align the tip with an obstruction. The twisting response at the tip of the catheter is determined by the torque applied to the torque element, the material and dimensional profile of the torque element, the attachment point of the torque element to the catheter and the material and dimensional profile of the catheter.

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