Stent Delivery System and Device

Abstract

The invention provides a stent delivery system and a stent device. The stent delivery system includes a catheter, a balloon operably attached to the catheter, and a stent disposed on the balloon. The stent includes at least one coating applied by dipping a portion of the stent into a coating liquid while simultaneously rotating the stent. The stent device includes a body and at least one coating rotationally applied to a portion of the body, while the body is at least partially immersed in a coating liquid.

1 . A stent delivery system comprising: 
 a catheter;    a balloon operably attached to the catheter; and    a stent disposed on the balloon, the stent including at least one coating, the coating applied onto the stent by dipping a portion of the stent into a coating liquid while simultaneously rotating the stent.    
   
   
       2 . The system of  claim 1  wherein the coating includes a therapeutic agent.  
   
   
       3 . The system of  claim 1  wherein the coating is substantially on an outer surface of the stent.  
   
   
       4 . The system of  claim 1  wherein the coating comprises a thickness of about 1 to 150 microns.  
   
   
       5 . The system of  claim 1  wherein the stent is dipped at a rate of about 0.1 to 25.0 millimeters per second.  
   
   
       6 . The system of  claim 1  wherein the stent is dipped for a time period of about 5 seconds to 10 minutes.  
   
   
       7 . The system of  claim 1  wherein the stent is rotated at a rate of about 100 to 25,000 rotations per minute.  
   
   
       8 . The system of  claim 1  further comprising: 
 a control sequence; and    a programmable logic chip wherein the logic chip controls at least one of the dipping and rotation of the stent based on the control sequence.    
   
   
       9 . A stent device comprising: 
 a body; and    at least one coating rotationally applied to a portion of the body, while the body is at least partially immersed in a coating liquid.    
   
   
       10 . The device of  claim 9  wherein the coating includes a therapeutic agent.  
   
   
       11 . The device of  claim 9  wherein the coating is substantially on an outer surface of the body.  
   
   
       12 . The device of  claim 9  wherein the coating comprises a thickness of about 1 to 150 microns.  
   
   
       13 . The device of  claim 9  wherein the rotational application of the coating comprises dipping the body at a rate of about 0.1 to 25.0 millimeters per second.  
   
   
       14 . The device of  claim 9  wherein the rotational application of the coating comprises immersing the body for a time period of about 5 seconds to 10 minutes.  
   
   
       15 . The device of  claim 9  wherein the body is rotated at a rate of about 100 to 25,000 rotations per minute.  
   
   
       16 . The device of  claim 9  further comprising: 
 a control sequence; and    a programmable logic chip wherein the logic chip controls the rotational application based on the control sequence.    
   
   
       17 - 30 . (canceled)