SYSTEM FOR CONTROLLED DELIVERY OF MEDICAL FLUIDS

• US 20170368254A1
• Filed: 08/09/2017
• Published: 12/28/2017
• Est. Priority Date: 05/19/2010
• Status: Active Application

• Current Assignee: Frank Levy, Kimberley Levy
• Original Assignee: Frank Levy, Kimberley Levy
• Inventors: Levy, Kimberley, Levy, Frank
• Application Number:
  US15/672,691
• Publication Number:
  US 20170368254A1
• Time in Patent Office: Days
• CPC Class Codes: A61M 2005/006 for gases, e.g. CO2
• CPC Class Codes: A61M 2005/1787 Syringes for sequential delivery of fluids, e.g. first medicament and then flushing liquid
• CPC Class Codes: A61M 2039/0009 Assemblies therefor designed for particular applications, e.g. contrast or saline injection, suction or irrigation
• CPC Class Codes: A61M 2039/0027 for mixing several substances from different containers
• CPC Class Codes: A61M 2202/0225 Carbon oxides, e.g. Carbon dioxide
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 39/24 Check- or non-return valves
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/19 having more than one chamber , e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly surgical glue applicators A61B17/00491
• CPC Class Codes: F04C 2270/0421 Controlled or regulated

Abstract

A system for controlled delivery of medical fluids to a patient includes an inlet conduit attached to a source of a medical fluid and an outlet conduit connected to the patient. The inlet and outlet conduits are interconnected by a multiple stage control valve assembly and a pair of syringes. The control valve assembly is alternated between a first state wherein the inlet conduit communicates with a first syringe for transmitting fluid from the source to the first syringe, a second state wherein the first syringe communicates with a second syringe and is isolated from the inlet conduit and the outlet for transmitting fluid from the first syringe to the second syringe, and a third state wherein the second syringe communicates with the outlet and is isolated from the inlet and the first syringe for transmitting fluid from the second syringe to the patient through the outlet.

Claims

1-18. -18. (canceled)

19. A system for controlled delivery of a medical fluid from a source of such fluid to a patient, said system comprising:

an inlet conduit for being communicably joined to a source of the medical fluid;

an outlet conduit for being communicably joined to the patient;

first and second syringes intermediate said inlet and outlet conduits; and

a control valve assembly interconnecting said inlet conduit, said outlet conduit, said first syringe and said second syringe, said control valve assembly being alternatable between various states consisting of a first state wherein said inlet conduit communicates with said first syringe for transmitting fluid from the source to only said first syringe, a second state wherein said first syringe communicates only with said second syringe and is isolated from said inlet and outlet conduits for transmitting fluid from said first syringe to only said second syringe, and a third state wherein said second syringe communicates only with said outlet conduit and is isolated from said inlet conduit and said first syringe for transmitting fluid from said second syringe to only said outlet conduit;

said control valve assembly includes a valve body having aligned inlet and outlet ports, said inlet port being communicably connectable to said inlet conduit and said outlet port being communicably connectable to said outlet conduit, said valve body further including a first intermediate port to which said first syringe is selectively connected and a second intermediate port to which said second syringe is selectively connected, said control valve assembly further including a stopcock element mounted rotatably within said body and including a channel consisting only of a first channel segment and a second channel segment, said first and second channel segments being selectively alignable with said inlet port and said first intermediate port to allow for communication between said inlet conduit and said first syringe, said first intermediate port and said second intermediate port to allow for communication between said first syringe and said second syringe, and said second intermediate port and said outlet port to allow for communication between said second syringe and said outlet conduit.

20. The system according to claim 19, wherein said first channel segment and said second channel segment are at an acute angle to one another.

21. The system according to claim 20, wherein in said first state, said first channel segment and said second channel segment communicably interconnect said inlet port and said first intermediate port whereby fluid introduced in said inlet conduit is transmitted through said inlet port, said channel and said first intermediate port to said first syringe.

22. The system according to claim 20, wherein in said second state, said stopcock element aligns said first channel segment and said second channel segment with said first and second intermediate ports respectively to isolate fluid in said first syringe from both said inlet and outlet conduits and for directing fluid from said first syringe through said first intermediate port, said channel and said second intermediate port into said second syringe.

23. The system according to claim 20, wherein in said third state, said stopcock element aligns said first channel segment and said second channel segment with said second intermediate port and said outlet port, respectively to isolate the fluid in said second syringe from said source, said inlet port and said first intermediate port and for transmitting the fluid through said second intermediate port, said channel and said outlet port to said outlet conduit.

24. The system according to claim 19, wherein said inlet and outlet ports include respective longitudinal axes that are aligned.

25. The system according to claim 19, wherein said first and second intermediate ports include respective longitudinal axes that form an angle of substantially 60 degrees with one another.

26. The system according to claim 19, wherein said first intermediate port forms an axial angle of substantially 60 degrees with the longitudinal axis of said inlet port and wherein the longitudinal axis of said second intermediate port forms an angle of substantially 60 degrees with the longitudinal axis of said outlet port.

27. The system according to claim 20, wherein said first channel segment and said second channel segment have respective longitudinal axes that form an angle of substantially 60 degrees.

28. The system according to claim 19, further including a first one-way valve at said inlet port for restricting fluid flow to a single direction from the source of fluid to said control valve assembly and a second one-way valve at said outlet port for restricting the flow of fluid in a single direction from the control valve assembly through the outlet conduit to the patient.

29. The system according to claim 19, further including a downstream valve connected to said outlet conduit for at least one of bleeding fluid from said system and administering an additive fluid to the medical fluid transmitted through said outlet conduit.

30. The system according to claim 19, wherein said stopcock element is rotated by an attached lever having a pair of diverging handles that are alignable with respective ports of said valve body to indicate that said respective ports are communicatively connected by said channel of said stopcock element.

31. The system according to claim 19, wherein said first and second intermediate ports include respective longitudinal axes that form an angle with one another, said first intermediate port forms an angle with the longitudinal axis of said inlet port that is equivalent to the angle formed by said longitudinal axes of said first and second intermediate ports, said longitudinal axis of said second intermediate port forms an angle with the longitudinal axis of said outlet port that is equivalent to the angle formed by said longitudinal axes of said first and second intermediate ports, and said first channel segment and said second channel segment have respective longitudinal axes that form an angle equivalent to the angle formed by said longitudinal axes of said first and second intermediate ports.