Cholangiography catheter apparatus and method
First Claim
1. A catheter apparatus for laparoscopic cholangiography comprising:
- a catheter having a distal end and a proximal end, said distal end being suitable for incremental insertion into the cystic duct of a patient, said catheter comprising a preselected length sufficient to pass through the abdominal wall of said patient to said cystic duct from a position external of said patient, said catheter comprising a set of indicia at said distal end and a radiopaque line along said preselected length;
an introducer for introducing said catheter through said abdominal wall;
a connector mounted to said proximal end of said catheter, said connector comprising a first interconnect for introducing saline solution into said catheter and a second interconnect for introducing dye into said catheter;
a first tubing connected at a distal end to said first interconnect;
a first check valve mounted to a proximal end of said first tubing;
a first syringe removably mountable to said first check valve, said first syringe containing saline for introducing said saline into said catheter;
a second tubing connected at a distal end to said second interconnect;
a second check valve mounted to a proximal end of said second tubing; and
a second syringe removably mountable to said second check valve;
said second syringe containing dye for introducing said dye into said catheter.
1 Assignment
0 Petitions
Accused Products
Abstract
A cholangiography catheter for injecting dye into a cystic duct during laparoscopic cholangiography. The catheter includes a bifurcated connector having a length of tubing and a check valve mounted to each arm of the connector. A saline syringe is coupled to one check valve and a dye syringe is coupled to the other check valve. The check valves and respective syringes are color coordinated to preclude inadvertently using the wrong syringe. The catheter is fabricated from a medical grade polymer having a preselected degree of compliant memory and includes indicia for providing a visual indication of the depth of penetration of the tip of the catheter into the cystic duct.
102 Citations
19 Claims
-
1. A catheter apparatus for laparoscopic cholangiography comprising:
-
a catheter having a distal end and a proximal end, said distal end being suitable for incremental insertion into the cystic duct of a patient, said catheter comprising a preselected length sufficient to pass through the abdominal wall of said patient to said cystic duct from a position external of said patient, said catheter comprising a set of indicia at said distal end and a radiopaque line along said preselected length; an introducer for introducing said catheter through said abdominal wall; a connector mounted to said proximal end of said catheter, said connector comprising a first interconnect for introducing saline solution into said catheter and a second interconnect for introducing dye into said catheter; a first tubing connected at a distal end to said first interconnect; a first check valve mounted to a proximal end of said first tubing; a first syringe removably mountable to said first check valve, said first syringe containing saline for introducing said saline into said catheter; a second tubing connected at a distal end to said second interconnect; a second check valve mounted to a proximal end of said second tubing; and a second syringe removably mountable to said second check valve;
said second syringe containing dye for introducing said dye into said catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A cholangiography catheter for use during laparoscopic surgery comprising:
-
a catheter comprising a radiolucent, medical grade plastic, said plastic comprising a compliant memory, said catheter comprising a distal end and a proximal end, said distal end comprising indicia to provide a visual indication of the depth of insertion of said distal end; a connector coupled in fluid communication to said proximal end of said catheter, said connector comprising a saline arm and a dye arm; a saline tubing having a distal end and a proximal end and coupled in fluid communication to said saline arm at said distal end; a dye tubing having a distal end and a proximal end and coupled in fluid communication to said dye arm at said distal end; a saline check valve mounted in fluid communication to said proximal end of said saline tubing; a dye check valve mounted in fluid communication to said proximal end of said dye tubing; a saline syringe releasably mountable to said saline check valve; and a dye syringe releasably mountable to said dye check valve. - View Dependent Claims (9, 10, 11, 12)
-
-
13. A method for introducing a contrast medium to a cystic duct during laparoscopic cholangiography comprising:
-
obtaining a catheter having a proximal end and a distal end, said catheter comprising a medical grade polymer having a preselected degree of compliant memory; mounting a connector in fluid communication to said proximal end of said catheter, said connector comprising a saline arm and a dye arm, said saline arm connected in fluid communication to a saline check valve through a saline tubing, said dye arm connected in fluid communication to a dye check valve through a dye tubing; filling a dye syringe with dye and attaching said dye syringe to said dye check valve and flushing said dye tubing and said dye arm; filling a saline syringe with saline and attaching said saline syringe to said saline check valve and flushing said saline tubing and said catheter with said saline; and inserting said distal end of said catheter into said cystic duct and injecting said dye from said dye syringe into said cystic duct. - View Dependent Claims (14, 15, 16, 17, 18, 19)
-
Specification