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This patent was reissued on Apr. 30, 1985 as patent
USRE31873
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 Title: |
US4072146:
Venous catheter device
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Howes, Randolph M.; Baltimore, MD 21205
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| Assignee: |
None
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| Published / Filed: |
1978-02-07
/ 1976-09-08
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| Application Number: |
US1976000721215
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| IPC Code: |
Advanced:
A61B 5/0215;
A61M 25/00;
A61M 25/01;
IPC-7:
A61B 5/02;
A61M 25/00;
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| ECLA Code: |
A61M25/01C2; A61B5/0215B; K61M25/00R1M6; K61M25/00R1M10; K61M25/00R1M20;
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| U.S. Class: |
Current:
600/487;
600/581;
604/158;
Original:
128/002.05D;
128/002.05F;
128/214.4;
128/348;
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| Field of Search: |
128/2 M,2.05 R,2.05 D,2.05 F,214.4,348-351
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| Priority Number: |
| 1976-09-08 |
US1976000721215 |
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| 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.
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| Attorney, Agent or Firm: |
Finnegan, Henderson, Farabow & Garrett ;
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| Primary / Asst. Examiners: |
Truluck, Dalton L.;
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Family: |
Show 14 known family members
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First Claim:
Show all 10 claims |
What is claimed is:
1. 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 extending 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, said fluid passages being defined at least in part by elongated flexible lumens extending from the proximate end of said catheter, 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 patent without becoming mixed before infusion, and whereby blood samples may be withdrawn and venous pressure measurements performed simultaneously with fluid infusion.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 120 U.S. patent(s) that reference this one
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