Pumpless thrombectomy system

Abstract

A thrombectomy catheter system can include a catheter configured for insertion into vasculature of a patient. The system includes a pressure chamber configured to isolate an internal volume from a surrounding environment. The system can include an infusion container including an infusion fluid therein. The pressure chamber can receive the infusion container. A drive unit can pressurize a working fluid in the pressure chamber with the infusion container received in the pressure chamber. In an example, pressurizing of the working fluid correspondingly compresses the infusion container to pressurize the infusion fluid and transfer the infusion fluid to the catheter. In an example, the infusion fluid is isolated from the working fluid by the infusion container when the working fluid is pressurized in the pressure chamber.

The claimed invention is: 
     
         1 . A thrombectomy catheter system, comprising:
 a catheter configured for insertion into vasculature of a patient;   a pressure chamber configured to isolate an internal volume from a surrounding environment;   an infusion container including an infusion fluid, wherein the infusion container is configured for reception in the pressure chamber;   a drive unit configured to pressurize a working fluid in the pressure chamber with the infusion container received in the pressure chamber, wherein the pressurizing of the working fluid correspondingly compresses the infusion container to pressurize the infusion fluid and transfer the infusion fluid to the catheter; and   wherein the infusion fluid is isolated from the working fluid by the infusion container when the working fluid is pressurized in the pressure chamber.   
     
     
         2 . The thrombectomy catheter system of  claim 1 , further comprising a working fluid contained configured to supply the working fluid. 
     
     
         3 . The thrombectomy catheter system of  claim 1 , further comprising a spike configured to pierce the infusion container, wherein the infusion spike facilitates fluidic communication between the infusion container and the catheter. 
     
     
         4 . A thrombectomy catheter configured to remove thrombus from vasculature of a patient, the thrombectomy catheter comprising:
 a catheter body configured for insertion into the vasculature of the patient;   a suction lumen configured to provide a vacuum at a suction port;   an infusion lumen configured to provide an infusion fluid, wherein the suction lumen is isolated from the infusion lumen;   an infusion port configured to discharge the infusion fluid from the infusion body; and   wherein the catheter is configured to draw the infusion fluid discharged from the infusion body into the suction port.   
     
     
         5 . The thrombectomy catheter of  claim 4 , further comprising an expandable balloon configured to engage with the vasculature and contain the thrombus and enhance drawing the thrombus into the suction port.