Direction reversing vascular treatment device

Abstract

An apparatus for performing a vascular treatment includes an intraluminal member that is controllingly moved during the vascular treatment. The intraluminal member of the vascular treatment device can be connected to a motor. The rotation direction of the intraluminal member can be reversed to reduce the incidence and duration of vein entanglement during a vascular ablation procedure. Reversal of direction could occur automatically, or in response to a sensor such as a load sensor provided as part of the motorized drive system.

1 - 32 . (canceled) 
     
     
         33 . A method of treating a vein, comprising:
 advancing an elongated intraluminal member from an access site and into a vein;   rotating the intraluminal member or portion thereof in a first direction with a motorized drive system coupled to the intraluminal member or portion thereof, the motorized drive system comprising a motor drive circuit and a motor;   detecting entanglement of the intraluminal member or portion thereof with vein tissue; and   changing the direction of rotation of the intraluminal member or portion thereof.   
     
     
         34 . The method of  claim 33 , wherein changing the direction of rotation of the intraluminal member or portion thereof comprises changing the direction of rotation of the motorized drive system. 
     
     
         35 . The method of  claim 33 , wherein the motor comprises a reversible, motor. 
     
     
         36 . The method of  claim 33 , wherein the drive system comprises a kinematic chain. 
     
     
         37 . The method of  claim 33 , wherein the drive system comprises a gearbox. 
     
     
         38 . The method of  claim 33 , further comprising periodically reversing the direction of rotation of the intraluminal member or portion thereof. 
     
     
         39 . The method of  claim 38 , further comprising programming a motor control and the motor drive circuit to perform the periodic reversal of the direction of rotation. 
     
     
         40 . The method of  claim 33 , further comprising injecting sclerosant into the vein. 
     
     
         41 . The method of  claim 33 , wherein a distal end of the intraluminal member comprises a vein wall disruptor, 
     
     
         42 . The method of  claim 33 , wherein the motorized drive system is configured to change the direction of rotation when a load threshold is reached or exceeded. 
     
     
         43 . A method of treating a vein, comprising:
 advancing an elongated intraluminal member from an access site and into a vein;   rotating the intraluminal member or portion thereof in a first direction with a motorized drive system coupled to the intraluminal member or portion thereof, the motorized drive system comprising a motor drive circuit and a motor;   detecting one or more of entanglement or over penetration of the intraluminal member or portion thereof with vein tissue; and   changing the direction of rotation of the intraluminal member or portion thereof.   
     
     
         44 . The method of  claim 43 , wherein changing the direction of rotation of the intraluminal member or portion thereof comprises changing the direction of rotation of the motorized drive system. 
     
     
         45 . The method of  claim 43 , wherein the motor comprises a reversible motor. 
     
     
         46 . The method of dam  43 , wherein the drive system comprises a kinematic chain, 
     
     
         47 . The method of  claim 43 , wherein the drive system comprises a gearbox. 
     
     
         48 . The method of  claim 43 , further comprising periodically reversing the direction of rotation of the intraluminal member or portion thereof. 
     
     
         49 . The method of  claim 48 , further comprising programming a motor control and the motor drive circuit to perform the periodic reversal of the direction of rotation. 
     
     
         50 . The method of  claim 43 , further comprising injecting sclerosant into the vein. 
     
     
         51 . The method of  claim 43 , wherein a distal end of the intraluminal member comprises a vein wall disruptor. 
     
     
         52 . A method of treating a vein, comprising:
 advancing an elongated intraluminal member from an access site and into a vein, wherein a distal end of the intraluminal member comprises a vein wall disruptor;   injecting sclerosant into the vein;   rotating the intraluminal member or portion thereof in a first direction with a motorized drive system coupled to the intraluminal member or portion thereof, the motorized drive system comprising a motor drive circuit and a motor; and   changing the direction of rotation of the intraluminal member or portion thereof.