Venous catheter device

Claim 2

valves for controlling flow of fluid in the individual lumens..]. .[.5. A venous catheter device including an elongated, integral flexible catheter tube provided with a distal end portion generally circular in cross-section and having a uniform outer diameter constructed for insertion into and capable of being fed longitudinally of a vein, a plurality of independent lumens extending through said catheter tube, each of said lumens having a distal terminus adjacent the distal terminus of the catheter tube and defining an opening to the outside of said catheter tube, the distal terminus of said lumens being spaced from each other and all of said lumen termini being within no more than about twelve centimeters from the distal terminus of the catheter tube, the proximate ends of the lumens extending beyond the proximate end of said catheter tube and being fitted with a lumen adapter for connection to independent fluid devices..]. .[.6. A venous catheter device including an elongated, flexible catheter provided with a distal end portion generally circular in cross-section and having a uniform outer diameter constructed for insertion into and capable of being fed longitudinally of a vein, a plurality of fluid passages extending longitudinally of said catheter and each having a terimus at the distal end portion of said catheter and defining an opening to the outside of said catheter, the terminus of each of said passages being spaced from one another by a distance of at least about one centimeter, said fluid passages being defined at least in part by elongated flexible lumens extending from the proximate end of said catheter, remote from said terminus, at least one of said passages providing means for infusing fluids into the blood stream, and each of said lumens being adapted for attachment to a separate fluid conveying device, whereby fluids may be separately infused into the vein of a patient without becoming mixed before infusion, and whereby blood samples may be withdrawn and venous pressure measurements performed simultaneously

Claim 3

with fluid infusion..]. 7. A venous catheter device including an elongated, flexible catheter tube provided with a distal end portion generally circular in cross-section and having a uniform outer diameter constructed for insertion into and capable of being fed longitudinally of a vein, a plurality of independent lumens extending freely through said catheter tube, each of said lumens having a distal terminus adjacent the distal terminus of the catheter tube and spaced from each other, one of said lumens having its distal end substantially coextensive with the distal end of said tube, the other of said lumens exiting at lateral openings in said tube and being joined thereto, at least one of said lumens providing means for infusing fluids into the blood stream, the proximate ends of the lumens extending beyond the proximate end of said catheter tube and being fitted with a lumen adapter for connection to independent fluid devices. .[.8. A venous catheter device including an elongated, integral flexible catheter tube provided with a distal end portion generally circular in cross-section and having a uniform outer diameter constructed for insertion into and capable of being fed longitudinally of a vein, a plurality of lumens formed as passages in said tube and extending through said catheter tube, each of said lumens having a distal terminus at the distal end portion of the catheter tube and defining an opening to the outside of said catheter tube and being spaced from each other, the proximate ends of the lumens extending beyond the proximate end of said catheter tube and being fitted with a lumen adapter for connection to independent fluid devices, at least one of said lumens providing means for infusing fluids into the blood stream..]. .[.9. A venipuncture device including a hollow needle having a generally circular cross-section, an elongated, flexible catheter provided with a distal end portion generally circular in cross-section and having a uniform outer diameter slidably extended through said needle and capable of being fed longitudinally into a vein, a plurality of fluid passages extending longitudinally of said catheter and each having a terminus at the distal end portion of said catheter and defining an opening to the outside of said catheter, the terminus of each of said passages being spaced from one another by a distance of at least about one centimeter, each of said passages being adapted for attachment to a separate fluid conveying device, whereby fluids may be separately infused into the vein of a patient without becoming mixed before infusion, and whereby blood samples may be withdrawn and venous pressure measurements performed simultaneously with fluid infusion..]. .[.10. A venous catheter device including an elongated flexible catheter provided with a distal end portion generally circular in cross-section and having a uniform outer diameter constructed for insertion into or capable of being fed longitudinally into a vein, a plurality of fluid passages extending longitudinally of said catheter and defining an opening to the outside of said catheter, the terminus of each of said passages being spaced from one another by a disance of at least about one centimeter, each of the passages providing means for selectively infusing fluids into the blood stream, withdrawing blood samples, and measuring venous pressure, each of said passages being adapted for attachment to a separate fluid conveying device, whereby fluids may be separately infused into a vein of a patient without becoming mixed before infusion, and whereby blood samples may be withdrawn and venous pressure

Claim 4

measurements performed simultaneously with fluid infusion..]. .Iadd.11. A venous catheter device including an elongated, flexible catheter tube provided with a distal end portion generally circular in cross-section and having a uniform outer diameter constructed for insertion into and capable of being fed longitudinally of a vein, a plurality of independent lumens extending freely through said catheter tube, each of said lumens having a distal terminus adjacent the distal terminus of the catheter tube and spaced from each other, one of said lumens having its distal end substantially coextensive with the distal end of said tube, the others of said lumens exiting at lateral openings in said tube and being joined thereto, at least two of said lumens providing means for infusing fluids into the blood stream, the proximate ends of the lumens extending beyond the proximate end of said catheter tube and being fitted with a lumen adapter for connection to independent fluid devices. .Iaddend. .Iadd.12. A venous catheter device including an elongated, flexible catheter tube provided with a distal end portion generally circular in cross-section and having a uniform outer diameter constructed for insertion into and capable of being fed longitudinally of a vein, a plurality of independent lumens extending freely through said catheter tube, each of said lumens having a distal terminus adjacent the distal terminus of the catheter tube and spaced from each other, one of said lumens having its distal end substantially coextensive with the distal end of said tube, the others of said lumens exiting at lateral openings in said tube and being joined thereto, a first of said lateral openings being spaced about one to three centimeters from the distal end of said catheter tube and a second of said lateral openings being spaced about one to three centimeters from said first lateral opening, at least one of said lumens providing means for infusing fluids into the blood stream, the proximate ends of the lumens extending beyond the proximate end of said catheter tube and being fitted with a lumen adapter for connection to independent fluid devices. .Iaddend. .Iadd.13. A venous catheter device including an elongated, flexible catheter tube provided with a distal end portion generally circular in cross-section and having a uniform outer diameter constructed for insertion into and capable of being fed longitudinally of a vein, a plurality of independent lumens extending freely through said catheter tube, each of said lumens having a distal terminus adjacent the distal terminus of the catheter tube and spaced from each other, one of said lumens having its distal end substantially coextensive with the distal end of said tube, the others of said lumens exiting at two lateral openings in said tube and being joined thereto, said lateral openings being spaced apart from one another by about one to three centimeters, at least one of said lumens providing means for infusing fluids into the blood stream, the proximate ends of the lumens extending beyond the proximate end of said catheter tube and being fitted with a lumen adapter for connection to independent fluid devices. .Iaddend. .Iadd.14. A venous catheter device including an elongated, flexible catheter tube provided with a distal end portion generally circular in cross-section and having a uniform outer diameter constructed for insertion into and capable of being fed longitudinally of a vein, a plurality of independent lumens extending freely through said catheter tube, each of said lumens having a distal terminus adjacent the distal terminus of the catheter tube and spaced from each other, one of said lumens having its distal end substantially coextensive with the distal end of said tube, the others of said lumens exiting at lateral openings in said tube and being joined thereto, a first of said lateral openings being spaced about one to three centimeters from the distal end of said catheter tube, at least one of said lumens providing means for infusing fluids into the blood stream, the proximate ends of the lumens extending beyond the proximate end of said catheter tube and being fitted with a lumen adapter for connection to independent fluid devices. .Iaddend.