Total system for contrast delivery

• US 6,442,418 B1
• Filed: 03/12/1999
• Issued: 08/27/2002
• Est. Priority Date: 10/28/1993
• Status: Expired due to Fees

• Current Assignee: Bayer Medical Care Inc. (Bayer AG)
• Original Assignee: Medrad Incorporated (Bayer AG)
• Inventors: Uber, Arthur E. III, Evans, Russell Morrison III
• Primary Examiner(s): Smith, Ruth S.
• Application Number:
  US09/266,727
• Time in Patent Office: 1,264 Days
• Field of Search: 600/431, 600/432, 128/DIG.1, 128/DIG.12, 128/DIG.13, 604/65-67, 604/82, 604/131, 604/151, 604/246, 604/247
• US Class Current: 600/431
• CPC Class Codes: A61M 2205/6072 Bar codes
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: Y10S 128/12 Pressure infusion
• CPC Class Codes: Y10S 128/13 Infusion monitoring

Abstract

A disposable unit for delivering fluid medium to one of a plurality of patients includes a sterile patient supply tube, and structure for receiving pressurized fluid medium into the patient supply tube. One or more devices is provided for precluding backflow of material from the patient to the fluid medium receiving structure, for preventing contamination of the fluid medium receiving structure and/or for preventing cross-contamination between patients.

Claims

1. A disposable unit for delivering fluid medium from a supply source to a plurality of patients, the disposable unit comprising:

a sterile patient supply tube for a patient of said plurality of patients;

means for receiving pressurized fluid medium into the patient supply tube; and

contamination prevention means configured and arranged to be positioned between the supply source and the patient, for precluding backflow of material from the patient to the fluid medium receiving means, for preventing contamination of the fluid medium receiving means, and for preventing cross-contamination between said plurality of patients.

2. A disposable unit according to claim 1, wherein the contamination prevention means comprises unidirectional flow means for allowing passage of fluid medium from the fluid medium receiving means to the patient but not in a reverse direction.

3. A disposable unit according to claim 2, wherein the unidirectional flow means comprises a valve.

4. A disposable unit according to claim 2, wherein the contamination prevention means comprises a sterilizing filter.

5. A disposable unit according to claim 4, wherein the contamination prevention means further comprises a backflow prevention valve.

6. A disposable unit according to claim 1, wherein the patient supply tube comprises a flexible connector tube for transporting the fluid to the patient.

7. A disposable unit according to claim 6, wherein the flexible connector tube is connected to a stopcock for allowing fluid to flow to the patient.

8. A disposable unit according to claim 1, comprising a first disposable patient supply tube for connecting to a first patient and a second disposable patient supply tube for connecting to a second patient.

9. A disposable unit for delivering fluid medium to a patient, comprising:

a sterile patient supply tube for receiving the fluid medium; and

a contamination prevention unit connected to the sterile patient supply tube, wherein the contamination prevention unit precludes backflow of material from the patient upstream of the sterile patient supply tube, prevents contamination of the fluid medium upstream of the sterile patient supply tube, and prevents cross-contamination between patients, and wherein the disposable unit further comprises a first disposable fluid path for connecting to a first patient and a second disposable fluid path for connecting to a second patient.

10. A unit for delivering a pressurized fluid medium from a supply source to a plurality of patients, the unit comprising:

a sterile patient supply tube for a patient of said plurality of patients;

a connector that connects the patient supply tube to the pressurized fluid medium;

a filter configured and arranged to be positioned between the connector and the patient, the filter preventing contamination of the connector; and

a valve, in communication with the filter, that precludes backflow of material from the patient to the connector, the valve, in conjunction with the filter, preventing cross-contamination between said plurality of patients.

11. A disposable unit for delivering pressurized fluid medium from a supply source for providing said pressurized fluid to a plurality of patients, comprising:

a patient supply tube for a patient of said plurality of patients;

a connector that connects the patient supply tube to the pressurized fluid medium; and

a contamination prevention unit structured and configured to be located between the connector and the patient, the contamination prevention unit

     1) preventing contamination of the connector,

     2) precluding upstream flow of at least one of the pressurized fluid medium and bacteria from the patient to the connector, and

     3) preventing cross-contamination between said plurality of patients.

12. A disposable unit according to claim 11, wherein the contamination prevention unit comprises a one-way valve.

13. A disposable unit according to claim 12, wherein the contamination prevention unit further comprises a filter.

14. A disposable unit according to claim 11, wherein the contamination prevention unit comprises a filter.

15. A fluid path apparatus for delivering fluid medium along a fluid path, the fluid path apparatus comprising:

a reusable portion of the fluid path, the reusable portion including at least a supply source that provides the fluid medium to a plurality of patients;

a disposable portion of the fluid path, the disposable portion being connectable to the reusable portion, and including at least a sterile patient supply tube for a patient of said plurality of patients, the patient being adapted to be connected to the reusable portion via the disposable portion of the fluid path; and

a contamination prevention unit positioned along the fluid path and configured and arranged to be positioned between the supply source and the patient, the contamination prevention unit preventing cross-contamination between said plurality of patients.

16. An apparatus according to claim 15, wherein the contamination prevention unit comprises a portion of the disposable portion.

17. An apparatus according to claim 15, wherein the contamination prevention unit comprises a portion of the reusable portion.

18. An apparatus according to claim 15, wherein the contamination prevention unit comprises a sterile filter.

19. An apparatus according to claim 18, wherein the sterile filter comprises a portion of the disposable portion.

20. An apparatus according to claim 15, wherein the contamination prevention unit comprises a one-way valve.

21. An apparatus according to claim 20, wherein the one-way valve comprises a portion of the disposable portion.

22. An apparatus according to claim 20, wherein the one-way valve comprises a portion of the reusable portion.

23. A fluid apparatus for delivering fluid medium along a fluid path, the fluid path apparatus comprising:

a reusable portion of the fluid path including at least a supply source that provides the fluid medium to a plurality of patients;

a disposable portion of the fluid path, the disposable portion being connectable to the reusable portion, and including at least a sterile patient supply tube for a patient of said plurality of patients, the patient being adapted to be connected to the reusable portion via the disposable portion of the fluid path; and

a backflow prevention unit positioned along the fluid path and configured and arranged to be positioned between the supply source and the patient, the backflow prevention unit precluding backflow of material from the patient to the reusable portion to thereby prevent contamination of the reusable portion.

24. An apparatus according to claim 23, wherein the backflow prevention unit comprises a portion of the disposable portion.

25. An apparatus according to claim 23, wherein the backflow prevention unit comprises a portion of the reusable portion.

26. An apparatus according to claim 23, wherein the backflow prevention unit comprises a sterile filter.

27. An apparatus according to claim 26, wherein the sterile filter comprises a portion of the disposable portion.

28. An apparatus according to claim 23, wherein the backflow prevention unit comprises a one-way valve.

29. An apparatus according to claim 28, wherein the one-way valve comprises a portion of the disposable portion.

30. An apparatus according to claim 28, wherein the one-way valve comprises a portion of the reusable portion.

31. A fluid path apparatus for delivering fluid medium along a fluid path, the fluid path apparatus comprising:

a reusable portion of the fluid path including at least a supply source that provides the fluid medium to a plurality of patients;

a disposable portion of the fluid path, the disposable portion being connectable to the reusable portion, and including at least a sterile patient supply tube for a patient of said plurality of patients, the patient being adapted to be connected to the reusable portion via the disposable portion of the fluid path;

a backflow prevention unit positioned along the fluid path and configured and arranged to be positioned between the supply source and the patient, the backflow prevention unit precluding backflow of material from the patient to the reusable portion to thereby prevent contamination of the reusable portion; and

a contamination prevention unit positioned along the fluid path and configured and arranged to be positioned between the supply source and the patient, the contamination prevention unit preventing cross-contamination between said plurality of patients.

32. An apparatus according to claim 31, wherein the contamination prevention unit comprises a portion of the disposable portion.

33. An apparatus according to claim 31, wherein the contamination prevention unit comprises a portion of the reusable portion.

34. An apparatus according to claim 31, wherein the contamination prevention unit comprises a sterile filter.

35. An apparatus according to claim 34, wherein the sterile filter comprises a portion of the disposable portion.

36. An apparatus according to claim 31, wherein the contamination prevention unit comprises a one-way valve.

37. An apparatus according to claim 36, wherein the one-way valve comprises a portion of the disposable portion.

38. An apparatus according to claim 36, wherein the one-way valve comprises a portion of the reusable portion.

39. An apparatus according to claim 31, wherein the backflow prevention unit comprises a portion of the disposable portion.

40. An apparatus according to claim 31, wherein the backflow prevention unit comprises a portion of the reusable portion.

41. An apparatus according to claim 31, wherein the backflow prevention unit comprises a sterile filter.

42. An apparatus according to claim 41, wherein the sterile filter comprises a portion of the disposable portion.

43. An apparatus according to claim 31, wherein the backflow prevention unit comprises a one-way valve.

44. An apparatus according to claim 43, wherein the one-way valve comprises a portion of the disposable portion.

45. An apparatus according to claim 43, wherein the one-way valve comprises a portion of the reusable portion.

46. An apparatus according to claim 31, wherein the contamination prevention unit and the backflow prevention unit comprise a portion of the disposable portion.

47. An apparatus according to claim 31, wherein the contamination prevention unit and the backflow prevention unit comprise a portion of the reusable portion.

48. An apparatus according to claim 31, wherein at least one of the contamination prevention unit and the backflow prevention unit comprises a sterile filter.

49. An apparatus according to claim 48, wherein the sterile filter comprises a portion of the disposable portion.

50. An apparatus according to claim 31, wherein at least one of the contamination prevention unit and the backflow prevention unit comprises a one-way valve.

51. An apparatus according to claim 50, wherein the one-way valve comprises a portion of the disposable portion.

52. An apparatus according to claim 50, wherein the one-way valve comprises a portion of the reusable portion.

53. An apparatus according to claim 31, wherein at least one of the backflow prevention unit and the contamination prevention unit comprises a portion of the disposable portion, and another of the contamination prevention unit and the backflow prevention unit comprises a portion of the reusable portion.