Venous catheter device

• US RE31,873 E
• Filed: 01/19/1983
• Issued: 04/30/1985
• Est. Priority Date: 09/08/1976
• Status: Expired due to Term

• Current Assignee: RMH Family Partners, Ltd.
• Original Assignee: Randolph M. Howes
• Inventors: Howes, Randolph M.
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US06/444,710
• Time in Patent Office: 832 Days
• Field of Search: 604/21, 604/43-45, 604/158-163, 604/280-283, 128/658, 128/674, 128/692, 128/742, 128/748
• US Class Current: 600/487
• CPC Class Codes: A61B 5/02152 specially adapted for venous pressure
• CPC Class Codes: A61M 2025/0034 characterized by elements which are assembled, connected or fused, e.g. splittable tubes, outer sheaths creating lumina or separate cores making of catheters A61M25/0009
• CPC Class Codes: A61M 2025/004 characterized by lumina being arranged circumferentially
• CPC Class Codes: A61M 25/003 characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves catheter tips A61M25/0067
• CPC Class Codes: A61M 25/0111 Aseptic insertion devices

Abstract

A venous catheter device including a plurality of independent and noncommunicating fluid conveying lumens housed within or formed in a single catheter. One end of each lumen is adapted to be connected to a different fluid source, such as an intravenous (IV) drug infusion or feeder device, a syringe, etc., or to a central venous pressure (CVP) measuring device. The other end of each lumen exits at or proximate to the catheter terminus which, in turn, is adapted to be positioned within a vein. A hollow needle slidably receives the catheter terminus and is adapted for vein penetration and catheter positioning within the penetrated vein. Alternatively, the catheter can be used without a needle in which case a vein is directly exposed and partially transected allowing direct insertion of the catheter.

Claims

1. of said catheter tube..]. .[.4. A venipuncture device including a hollow elongated needle having a generally circular cross-section, an elongated, flexibl catheter tube provided with a distal end portion generally circular in cross-section and having a uniform outer diameter slidably extending through said needle and capable of being fed longitudinally into a vein, a plurality of elongated, flexible lumens encased within said catheter tube and each having a distal terminus adjacent the distal end portion of said catheter, and a proximate end extending beyond the proximate end of said catheter, the distal terminus of one of said lumens being substantially coextensive with the distal terminus of the catheter tube and the distal termini of the other lumens each extending through a separate side opening in said catheter tube, all of said lumen termini being spaced from each of the other lumen termini by a distance of at least about one centimeter, a connector molded over the proximate end of said catheter tube and encasing a portion of the individual lumens extending beyond the proximate end of the catheter tube, each of said lumens having a lumen adapter fitted on its proximate end, whereby to facilitate connection of the individual lumens to separate fluid devices, said adapters being formed to receive flexible conduits and flow control

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

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

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.