Chronic Hemodialysis Catheter with Balloon

Abstract

An indwelling catheter device and a method of treatment using the indwelling catheter device are provided. The indwelling catheter device includes an elongate shaft having a proximal portion, a distal portion, a first lumen extending longitudinally therethrough and an inflation lumen extending at least partially through the shaft. The distal portion of the shaft includes a first opening connected to the first lumen. The catheter device further includes a balloon operably connected to an outer surface of the shaft proximal to the first opening wherein the balloon at least partially surrounds the shaft. The inflation lumen is connected to the balloon for selective inflation and deflation of the balloon for disrupting migration of the occluding material and inhibiting the material from occluding the first opening when the catheter device is indwelling.

1 . An indwelling catheter device for fluid flow therethrough, the catheter device comprising:
 an elongate shaft having a proximal portion, a distal portion, a first lumen extending longitudinally therethrough and an inflation lumen extending at least partially through the shaft, the distal portion comprising a first opening connected to the first lumen;   a balloon operably connected to an outer surface of the shaft proximal to the first opening, the balloon at least partially surrounding the shaft and configured for inhibiting occluding material from occluding the first opening;   wherein the inflation lumen is connected to the balloon for selective inflation and deflation of the balloon for inhibiting occluding material from occluding the first opening when the catheter device is indwelling.   
   
   
       2 . The catheter device of  claim 1 , wherein the balloon circumferentially surrounds the shaft. 
   
   
       3 . The catheter device of  claim 1 , wherein the balloon extends longitudinally along the outer surface of the shaft between the proximal portion and the distal portion of the shaft. 
   
   
       4 . The catheter device of  claim 1 , wherein the balloon is operably connected to the distal portion of the shaft. 
   
   
       5 . The catheter device of  claim 1 , wherein the balloon is operably connected to the proximal portion of the shaft. 
   
   
       6 . The catheter device of  claim 1 , further comprising a second lumen extending longitudinally through at least a portion of the shaft, the second lumen having a second opening proximal to the first opening and distal to the balloon. 
   
   
       7 . The catheter device of  claim 6 , wherein the catheter device is a hemodialysis catheter and the first lumen comprises an infusion lumen and the second lumen comprises an aspiration lumen. 
   
   
       8 . The catheter device of  claim 1 , wherein the balloon is collapsible onto the shaft in a deflated configuration. 
   
   
       9 . The catheter device of  claim 1 , wherein the device further comprises a connector operably connected to the first lumen, the connector being configured to engage with a treatment instrument. 
   
   
       10 . The catheter device of  claim 9 , wherein the treatment instrument is a dialyzer. 
   
   
       11 . The catheter device of  claim 1 , wherein at least a portion of the device includes an antimicrobial coating. 
   
   
       12 . The catheter device of  claim 1 , further comprising a second lumen extending longitudinally through at least a portion of the shaft, wherein the first and second lumens are configured for the exchange of bodily fluid therethrough. 
   
   
       13 . A method for intraluminal treatment of a patient employing an indwelling catheter device, the method comprising:
 inserting at least a portion of a shaft of a catheter device into a vessel of the patient, the catheter device comprising:
 the shaft including a lumen extending longitudinally therethrough, the lumen having an opening at a distal portion of the shaft; and 
 a balloon operably connected to the shaft proximal to the opening; 
   providing a treatment through the lumen; and   inflating the balloon to disrupt a migration of occluding material distally on the shaft so as to inhibit the occluding material from occluding the opening in the distal portion of the shaft.   
   
   
       14 . The method of  claim 13 , further comprising the step of providing at least two inflation and deflation cycles. 
   
   
       15 . The method of  claim 13 , comprising the step of inflating the balloon during treatment. 
   
   
       16 . The method of  claim 13 , comprising the step of inflating the balloon before treatment. 
   
   
       17 . The method of  claim 13 , comprising the step of inflating the balloon after treatment. 
   
   
       18 . The method of  claim 13 , further comprising monitoring the occluding material and inflating the balloon. 
   
   
       19 . The method of  claim 13 , further comprising the step of providing a second treatment. 
   
   
       20 . The method of  claim 13 , further comprising the step of coating at least a portion of the indwelling catheter device with an antimicrobial agent. 
   
   
       21 . The method of  claim 13 , wherein the treatment comprises dialysis. 
   
   
       22 . A method for intraluminal treatment of a patient employing an indwelling catheter device, the method comprising:
 inserting a distal end of a shaft of a catheter device into a vessel of the patient, the catheter device comprising:
 the shaft having a first lumen extending longitudinally therethrough to a first opening and a second lumen extending longitudinally therethrough to a second opening; and 
 a balloon operably connected to the shaft proximal to the first and second openings, the balloon being connected to an inflation lumen; 
   withdrawing a bodily fluid to be treated from the vessel through the second lumen;   treating the fluid in a treatment instrument;   infusing the treated fluid through the first lumen into the vessel; and   selectively inflating the balloon to inhibit occluding material from occluding the first and second openings.