Access and drainage devices and methods of use thereof

Abstract

A medical device can be used to drain fluids from the body during a medical procedure that requires the insertion of a medical instrument into an anatomical lumen or cavity. The device generally allows the simultaneous introduction of the medical instrument into the body and drainage of fluid out of the body during a medical procedure.

1 . A medical device comprising: 
 a tubular access member for insertion into a urinary system comprising an insertion end, a proximal end, and a lumen, wherein the tubular access member is adapted to allow access for at least one medical instrument through the lumen; and,    a tubular drainage member for draining fluid from an organ of the urinary system comprising a first end, a proximal end, and a lumen.    
   
   
       2 . The medical device of  claim 1 , wherein the tubular access member and the tubular drainage member are substantially concentric.  
   
   
       3 . The medical device of  claim 1 , wherein the inner circumference of the tubular drainage member is greater than the outer circumference of the tubular access member.  
   
   
       4 . The medical device of  claim 1  wherein the tubular access member is slideably moveable relative to the tubular drainage member.  
   
   
       5 . The medical device of  claim 1 , wherein the tubular drainage member is slideably moveable relative to the tubular access member.  
   
   
       6 . The medical device of  claim 1 , wherein the first end of the tubular drainage member extends to form a coil.  
   
   
       7 . The medical device of  claim 1 , wherein the first end of the tubular drainage member extends to form a balloon.  
   
   
       8 . The medical device of  claim 1 , wherein at least one of the tubular access member and the tubular drainage member includes a plurality of apertures for migration of fluid.  
   
   
       9 . The medical device of  claim 8 , wherein at least one of the tubular access member and the tubular drainage member is sized such that the plurality of apertures extends from a location in the organ to the proximal end of at least one of the tubular access member and the tubular drainage member.  
   
   
       10 . The medical device of  claim 1 , wherein the tubular drainage member surrounds at least a portion of the tubular access member to define a space therebetween.  
   
   
       11 . The medical device of  claim 1 , wherein the tubular access member tapers inward at the insertion end.  
   
   
       12 . The medical device of  claim 1 , wherein the tubular drainage member is sized to extend from a location in the organ to a location beyond the urethra.  
   
   
       13 . The medical device of  claim 1 , wherein the ends of at least one of the tubular access member and the tubular drainage member are open.  
   
   
       14 . The medical device of  claim 1 , wherein the tubular drainage member and the tubular access member are the same.  
   
   
       15 . The medical device of  claim 1 , wherein the tubular drainage member further comprises a valve.  
   
   
       16 . A medical device comprising: 
 a tubular access member for insertion into a urinary system comprising an open insertion end, an open proximal end, and a lumen, wherein the tubular access member is adapted to allow access for at least one medical instrument through the lumen; and,    a tubular drainage member comprising a first end, a drainage end, and a lumen for draining fluid from the urinary system.    
   
   
       17 . The medical device of  claim 16 , wherein a portion of the tubular access member and a portion of the tubular drainage member are coupled.  
   
   
       18 . The medical device of  claim 16 , wherein the inner circumference of the tubular access member is greater than the inner circumference of the tubular drainage member.  
   
   
       19 . The medical device of  claim 16 , wherein the tubular access member is slideably moveable relative to the tubular drainage member.  
   
   
       20 . The medical device of  claim 16 , wherein the tubular drainage member is slideably moveable relative to the tubular access member.  
   
   
       21 . The medical device of  claim 16 , wherein the first end of the tubular drainage member extends to form a coil.  
   
   
       22 . The medical device of  claim 16 , wherein the first end of the tubular drainage member extends to form a balloon.  
   
   
       23 . The medical device of  claim 16 , wherein at least one of the tubular access member and the tubular drainage member includes a plurality of apertures for migration of fluid.  
   
   
       24 . The medical device of  claim 23 , wherein the tubular drainage member is sized such that the plurality of apertures extends from a location in the urinary system to the drainage end of the tubular drainage member.  
   
   
       25 . The medical device of  claim 16 , wherein the tubular drainage member extends substantially in parallel with a portion of the tubular access member.  
   
   
       26 . The medical device of  claim 16 , wherein the tubular access member tapers inward at the insertion end.  
   
   
       27 . The medical device of  claim 16 , wherein the tubular drainage member is sized to extend from a location in the urinary system to a location beyond the urethra.  
   
   
       28 . The medical device of  claim 16 , wherein the ends of the tubular drainage member are open.  
   
   
       29 . The medical device of  claim 16 , wherein the tubular drainage member further comprises a valve.  
   
   
       30 . A method of simultaneously draining fluid from the urinary system of a patient while maintaining access for a medical instrument in the urinary system, the method comprising the steps of: 
 extending a medical device through a urethra to a target organ of the urinary system, wherein the device comprises a tubular access member and a tubular drainage member; and    allowing drainage of fluid into a lumen of the tubular drainage member from an organ of the urinary system while allowing access for at least one medical instrument in a lumen of the tubular access member.    
   
   
       31 . The method of  claim 30 , wherein the medical instrument resides in the lumen of the tubular access member for a period of time.  
   
   
       32 . The method of  claim 31 , wherein the period of time is sufficient to perform more than a single medical procedure on a patient.  
   
   
       33 . The method of  claim 30 , further comprising the step of inserting a medical instrument into the lumen of the tubular access member.  
   
   
       34 . The method of  claim 33 , further comprising the step of removing the medical instrument from the lumen of the tubular access member.  
   
   
       35 . The method of  claim 34 , further comprising the step of re-inserting the medical instrument into the lumen of the tubular access member.