Lay Flat Tubing

• US 20120191050A1
• Filed: 01/27/2012
• Published: 07/26/2012
• Est. Priority Date: 03/17/2005
• Status: Active Grant

• Current Assignee: Durward Faries Jr
• Original Assignee: Durward Faries Jr
• Inventors: Faries, Durward I. Jr.
• Granted Patent: US 8,734,405 B2
• Time in Patent Office: Days
• US Class Current: 604/264
• CPC Class Codes: A61M 2027/004 with at least a part of the circuit outside the body
• CPC Class Codes: A61M 27/00 Drainage appliance for wounds or the like , i.e. wound drains, implanted drains negative pressure wound therapy devices A61M1/90; implements for holding wound open A61B17/02 ; middle ear drainage A61F11/202
• CPC Class Codes: B29C 48/00 Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor extrusion blow-moulding B29C49/04
• CPC Class Codes: B29C 48/0017 combined with blow-moulding or thermoforming
• CPC Class Codes: B29C 48/0019 combined with shaping by flattening, folding or bending
• CPC Class Codes: B29C 48/0022 combined with cutting
• CPC Class Codes: B29C 48/10 flexible, e.g. blown foils
• CPC Class Codes: B29C 48/12 Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
• CPC Class Codes: B29L 2023/007 Medical tubes other than catheters catheters B29L2031/7542
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 428/139 Open-ended, self-supporting conduit, cylinder, or tube-type article

Abstract

Lay flat tubing is used as a fluid conductor for transferring fluid to and from the body of a patient. The lay flat tubing lies flat or collapsed when not in use, utilizing minimal space during transportation and storage, but which expands to form a passage when used to conduct fluid. A plurality of lumens may be formed in the lay flat tubing. At least one lumen transports infused fluid end-to-end from a source to an entry site on a patient, or in the alternative from an entry site on or in a patient. All lumens are isolated with respect to each other in order to prevent crossover of fluid from one lumen to the other.

Claims

1-50. -50. (canceled)

51. A conduit, comprising:

a tubular member including first and second conduit walls having parallel longitudinally extending, transversely spaced edges joined together in fluid-sealing relation; and

a seam line defined in said tubular member to form first and second lumens within said tubular member that are attached to each other along a side edge of said lumens, each lumen having interior and exterior surfaces and longitudinally spaced first and second open terminal ends but is otherwise fluid sealed along its length, and said seam line extending within said tubular member between said attached first and second lumens from said first open terminal end of said attached lumens to said second open terminal end of said attached lumens;

wherein said interior surfaces, in the absence of applied pressure therebetween, are normally disposed substantially flush against one another, each of said first and second lumens being responsive to pressure applied between interior surfaces such that said interior surfaces expand away from one another;

wherein said first lumen is configured to conduct fluid from a fluid source to a desired location and said first open terminal end of said first lumen serves as an inlet and is configured to attach to said fluid source to receive fluid therefrom and said second open terminal end of said first lumen serves as an outlet and is configured to deliver said fluid to said desired location; and

wherein said conduit further comprises at least one electrical conductor extending longitudinally through said second lumen.

52. A conduit, comprising:

a tubular member including first and second conduit walls having parallel longitudinally extending, transversely spaced edges joined together in fluid-sealing relation;

a seam line defined in said tubular member to form first and second lumens within said tubular member that are attached to each other along a side edge of said lumens, each lumen having interior and exterior surfaces and longitudinally spaced first and second open terminal ends but is otherwise fluid sealed along its length, and said seam line extending within said tubular member between said attached first and second lumens from said first open terminal end of said attached lumens to said second open terminal end of said attached lumens; and

at least one fiber optic cable extending longitudinally through said second lumen to transmit optical signals through said second lumen;

wherein said interior surfaces, in the absence of applied pressure therebetween, are normally disposed substantially flush against one another, each of said first and second lumens being responsive to pressure applied between interior surfaces such that said interior surfaces expand away from one another; and

wherein said first lumen is configured to conduct fluid from a fluid source to a desired location and said first open terminal end of said first lumen serves as an inlet and is configured to attach to said fluid source to receive fluid therefrom and said second open terminal end of said first lumen serves as an outlet and is configured to deliver said fluid to said desired location.

53. A method for constructing a conduit, the method comprising the steps of:

providing first and second conduit walls having parallel longitudinally extending, transversely spaced edges;

joining respective said transversely spaced edges of said first and second conduit walls together in fluid-sealing relation to form a tubular member;

defining a seam line in said tubular member to form first and second lumens within said tubular member that are attached to each other along a side edge of said lumens, each lumen having interior and exterior surfaces and longitudinally spaced first and second open terminal ends but is otherwise fluid sealed along its length, and said seam line extending within said tubular member between said attached first and second lumens from said first open terminal end of said attached lumens to said second open terminal end of said attached lumens; and

extending at least one electrical conductor longitudinally through said second lumen;

wherein said interior surfaces, in the absence of applied pressure therebetween, are normally disposed substantially flush against one another, each of said first and second lumens being responsive to pressure applied between interior surfaces such that said interior surfaces expand away from one another;

wherein said first lumen is configured to conduct fluid from a fluid source to a desired location and said first open terminal end of said first lumen serves as an inlet and is configured to attach to said fluid source to receive fluid therefrom and said second open terminal end of said first lumen serves as an outlet and is configured to deliver said fluid to said desired location.

54. A method for constructing a conduit, the method comprising the steps of:

providing first and second conduit walls having parallel longitudinally extending, transversely spaced edges;

joining respective said transversely spaced edges of said first and second conduit walls together in fluid-sealing relation to form a tubular member;

defining a seam line in said tubular member to form first and second lumens within said tubular member that are attached to each other along a side edge of said lumens, each lumen having interior and exterior surfaces and longitudinally spaced first and second open terminal ends but is otherwise fluid sealed along its length, and said seam line extending within said tubular member between said attached first and second lumens from said first open terminal end of said attached lumens to said second open terminal end of said attached lumens; and

extending at least one fiber optic cable longitudinally through said second lumen to transmit optical signals through said second lumen;

wherein said interior surfaces, in the absence of applied pressure therebetween, are normally disposed substantially flush against one another, each of said first and second lumens being responsive to pressure applied between interior surfaces such that said interior surfaces expand away from one another;

wherein said first lumen is configured to conduct fluid from a fluid source to a desired location and said first open terminal end of said first lumen serves as an inlet and is configured to attach to said fluid source to receive fluid therefrom and said second open terminal end of said first lumen serves as an outlet and is configured to deliver said fluid to said desired location.