USRE39200EExpiredUtility

Apparatus for treating a blood vessel

Assignee: BOSTON SCIENT SCIMED INCPriority: May 12, 1989Filed: Jan 17, 1997Granted: Jul 18, 2006
Est. expiryMay 12, 2009(expired)· nominal 20-yr term from priority
Inventors:Quinghua Qian
A61M 16/0481A61B 2018/00065A61B 2018/00488A61M 25/10G02B 5/12A61B 2018/00494A61B 2017/00292A61B 2018/00196A61B 2018/0022A61B 2018/00214A61B 18/1492
25
PatentIndex Score
0
Cited by
42
References
20
Claims

Abstract

Method of employing a balloon tube for creating a thrombosis of vessels located directly under the surface of a body cavity which is difficult to reach, through the initiation of an electric current between the balloon which is deflated as introduced into the body cavity and which is inflated by introducing a fluid on the spot and an outside electrode. The fluid which is used to inflate the balloon is electrically conductive and the balloon wall is semi-permeable for the fluid.

Claims

exact text as granted — not AI-modified
1. Method for creating a thrombosis in a blood vessel located directly under the surface of a body cavity which is difficult to reach comprising
 inserting a deflated balloon containing a cylindrical tube into the body cavity, the tube having openings to the balloon,    inflating the balloon by introducing an electrically conductive fluid into the tube, the balloon having an exterior wall semi-permeable to the fluid, contacting a conductive wire to the conductive fluid to provide a connection to an electrode outside the body and initiating an electric current between the balloon and the electrode located outside the body cavity.    
     
     
       2. The method according to  claim 1  wherein a wire is inserted through the cylindrical tube and is connected to the electrode located outside the body cavity. 
     
     
       3. The method according to  claim 2  wherein the wire inserted is made of platinum. 
     
     
       4. The method according to  claim 3  wherein the fluid introduced is normal saline solution. 
     
     
       5. The method according to  claim 2  wherein the fluid introduced is normal saline solution. 
     
     
       6. The method according to  claim 1  wherein the fluid introduced is normal saline solution. 
     
     
       7. The method according to  claim 6 , the method further comprising a step of adding a medicament to the fluid. 
     
     
       8. The method according to  claim 1 , the method further comprising a step of adding a medicament to the fluid. 
     
     
       9. An apparatus for inducing thrombosis in hard to reach blood vessels within a living body comprising
 a cylindrical tube having multiple lateral passage-ways,    an electrically conductive fluid located within the tube,    a balloon having a membrane wall semipermeable to the fluid surrounding a portion of the cylindrical tube containing the passageways,    a counter electrode adapted to be located outside the body and    an electrically conductive wire electrically connecting the fluid and the electrode.    
     
     
       10. An apparatus according to  claim 9  wherein the fluid is normal saline solution. 
     
     
       11. An apparatus according to  claim 9  wherein the wire is made of platinum and the fluid is normal saline solution. 
     
     
       12. An apparatus according to  claim 11  wherein a medicament is present in the fluid. 
     
     
       13. An apparatus according to  claim 9  wherein a medicament is present in the fluid. 
     
     
       14. An apparatus for treating a blood vessel comprising:
   a tube including an inlet and outlet, the tube adapted to receive a conductive fluid;        a balloon in communication with a portion of the tube, the balloon including a membrane adapted to allow the conductive fluid to pass through the membrane;        an electrode adapted to be located outside the blood vessel; and        an electronically conductive wire adapted to connect the electrode to the conductive fluid.     
     
     
       15. The apparatus of  claim 14  wherein the electrode is adapted to be located outside the body. 
     
     
       16. The apparatus of  claim 14  wherein the balloon is semi-permeable. 
     
     
       17. The apparatus of  claim 14  wherein the conductive wire extends through the tube. 
     
     
       18. The apparatus of  claim 14  wherein the wire is platinum. 
     
     
       19. The apparatus of  claim 14  wherein the balloon is made of a material which offers no significant electrical resistance. 
     
     
       20. The apparatus of  claim 14  wherein the tube is made of a material which offers significant electric resistance.

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