Drainage system

• US 20060271019A1
• Filed: 10/14/2005
• Published: 11/30/2006
• Est. Priority Date: 10/15/2004
• Status: Abandoned Application

• Current Assignee: Regents of the University of California (University of California)
• Original Assignee: Regents of the University of California (University of California)
• Inventors: Garcia, Maurice, Stoller, Marshall L.
• Application Number:
  US11/251,560
• Publication Number:
  US 20060271019A1
• Time in Patent Office: Days
• US Class Current: 604/544
• CPC Class Codes: A61F 5/44 Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aidsabsorbent pads, e.g. sanitary towels, A61F13/15; drainage appliances for wounds A61M27/00; emptying devices for urine bags B65B69/0016; Colostomy devices adhesives for colostomy devices A61L24/00; materials for colostomy devices A61L28/00
• CPC Class Codes: A61F 5/4404 Details or parts
• CPC Class Codes: A61M 1/83 Tube strippers, i.e. for clearing the contents of the tubes
• CPC Class Codes: A61M 25/0017 specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
• CPC Class Codes: A61M 27/002 Implant devices for drainage of body fluids from one part of the body to another intraocular A61F9/00781; middle ear A61F11/202
• CPC Class Codes: A61M 27/008 pre-shaped, for use in the urethral or ureteral tract

Abstract

This invention provides improved medical drainage devices. In certain embodiments this invention provides a system for improved drainage from a bladder in a patient where the system comprises: a fluid collection apparatus; a drainage receptacle; and a connecting tube comprising a means for reducing or eliminating airlocks in the connecting tube and thereby providing sufficiently low backpressure such that a patient having a urinary bladder drained with said system maintains an average residual bladder urine volume of less than about 50 cubic centimeters over a period of at least four hours after initial drainage without manipulation of components of said system.

Claims

1. A system for improved drainage from a bladder in a patient, said system comprising:

a fluid collection apparatus;

a drainage receptacle; and

a connecting tube comprising a means for reducing or eliminating airlocks in said connecting tube and thereby providing sufficiently low backpressure such that a patient having a urinary bladder drained with said system maintains an average residual bladder urine volume of less than about 50 cubic centimeters over a period of at least four hours after initial drainage without manipulation of components of said system.

2. The system of claim 1, wherein said means provides sufficiently low backpressure such that a patient having a urinary bladder drained with said system maintains an average residual bladder urine volume of less than about 25 cubic centimeters over a period of at least eight hours after initial drainage without manipulation of components of said system.

3. The system of claim 1, wherein said collection apparatus comprises a Foley catheter.

4. The system of claim 1, wherein said drainage receptacle comprises a urine collection bag.

5. The system of claim 1, wherein said drainage receptacle comprises a vented urine collection bag.

6. The system of claim 1, wherein said means for reducing or eliminating airlocks comprises a means for producing a downward spiral shape in said connecting tube.

7. The system of claim 6, wherein said means for reducing or eliminating airlocks comprises an external semi-rigid coil through which said connecting tube is threaded.

8. The system of claim 6, wherein said means for reducing or eliminating airlocks comprises an external semi-rigid coil to which said connecting tube is attached.

9. The system of claim 6, wherein said means for reducing or eliminating airlocks comprises a semi-rigid coil formed from all or a part of said connecting tube.

10. The system of claim 1, wherein said means for reducing or eliminating airlocks comprises a tensioner attached to said connecting tube.

11. The system of claim 10, wherein said tensioner comprises a spring or elastic strap attached to said connecting tube.

12. The system of claim 11, wherein said tensioner is removably attached to said connecting tube.

13. The system of claim 11, wherein said tensioner comprises a clip for attachment to bedding, a bedside, or an iv stand.

14. The system of claim 1, wherein said means for reducing or eliminating airlocks comprises an elastic or elasticized bellows tubing.

15. The system of claim 1, wherein said means for reducing or eliminating airlocks comprises a form for wrapping excess collection tubing.

16. The system of claim 15, wherein said form holds excess collection tubing in a downward spiral shape.

17. The system of claim 1, wherein said means for reducing or eliminating airlocks comprises a tubing auto-winder.

18. A medical drainage device or system comprising a connecting tube, said connecting tube comprising a means for reducing or eliminating airlocks in said connecting tube and thereby providing sufficiently low backpressure such that when a patient is equipped with said device or system to drain a bladder, said patient maintains an average residual bladder urine volume of less than about 50 cubic centimeters over a period of at least four hours after initial drainage without manipulation of components of said system.

19. The drainage device or system of claim 18, wherein said means for reducing or eliminating airlocks comprises a means for producing a downward spiral shape in said connecting tube.

20. The drainage device or system of claim 19, wherein said means for reducing or eliminating airlocks comprises an external semi-rigid coil through which said connecting tube is threaded.

21. The drainage device or system of claim 19, wherein said means for reducing or eliminating airlocks comprises an external semi-rigid coil to which said connecting tube is attached.

22. The drainage device or system of claim 19, wherein said means for reducing or eliminating airlocks comprises a semi-rigid coil formed from all or a part of said connecting tube.

23. The drainage device or system of claim 18, wherein said means for reducing or eliminating airlocks comprises a tensioner attached to said connecting tube.

24. The drainage device or system of claim 23, wherein said tensioner comprises a spring or elastic strap attached to said connecting tube.

25. The drainage device or system of claim 24, wherein said tensioner is removably attached to said connecting tube.

26. The drainage device or system of claim 24, wherein said tensioner comprises a clip for attachment to bedding, a bedside, or an iv stand.

27. The drainage device or system of claim 18, wherein said means for reducing or eliminating airlocks comprises an elastic or elasticized bellows tubing.

28. The drainage device or system of claim 18, wherein said means for reducing or eliminating airlocks comprises a form for wrapping excess collection tubing.

29. The drainage device or system of claim 28, wherein said form holds excess collection tubing in a downward spiral shape.

30. The drainage device or system of claim 19, wherein said device or system further comprises a drainage device selected from the group consisting of a urinary catheter, a chest tube, a mediastinal tube, and a nasogastric tube.

31. The drainage device or system of claim 19, wherein said device or system further comprises a urinary leg bag.

32. The drainage device or system of claim 31, wherein said device or system further comprises a urinary leg bag, said leg bag comprising a venting tube.

33. A urinary catheter comprising a connecting tube, wherein said connecting tube comprises a downward spiral shape.

34. A urinary leg bag comprising a connecting tube and a venting system, wherein said connecting tube comprises a downward spiral shape and said venting system comprises a venting tube.

35. A collecting tube for use in a medical drainage device, wherein said collecting tube comprises a means for reducing or eliminating airlocks in said tube.

36. The collecting tube of claim 35, wherein said means for reducing airlocks comprises a means of producing a downward spiral shape in said collecting tube.

37. The collecting tube of claim 36, wherein said tube comprises means for attachment to a catheter.

38. The collecting tube of claim 36, wherein said tube comprises means for attachment to a Foley catheter.

39. The collecting tube of claim 36, wherein said tube comprises means for attachment to a waste receptacle for biological fluids.

40. The collecting tube of claim 36, wherein said means for a means for producing a downward spiral shape comprises an external semi-rigid coil through which said connecting tube is threaded.

41. The collecting tube of claim 36, wherein said means for a means for producing a downward spiral shape comprises an external semi-rigid coil to which said connecting tube is attached.

42. The collecting tube of claim 36, wherein said means for a means for producing a downward spiral shape comprises a semi-rigid coil formed from all or a part of said connecting tube.

43. The collecting tube of claim 35, wherein said means for reducing airlocks comprises a tensioner attached to said connecting tube.

44. The collecting tube of claim 43, wherein said tensioner comprises a spring or elastic strap attached to said connecting tube.

45. The collecting tube of claim 44, wherein said tensioner is removably attached to said connecting tube.

46. The collecting tube of claim 44, wherein said tensioner comprises a clip for attachment to bedding, a bedside, or an iv stand.

47. The collecting tube of claim 35, wherein said means for reducing or eliminating airlocks comprises an elastic or elasticized bellows tubing.

48. The collecting tube of claim 35, wherein said means for reducing or eliminating airlocks comprises a form for wrapping excess collection tubing.

49. The collecting tube of claim 48, wherein said form holds excess collection tubing in a downward spiral shape.

50. A method of reducing urinary tract infection in a subject bearing a urinary catheter, said method comprising:

providing a connecting tube coupled to said catheter where said a connecting tube comprises a means for reducing or eliminating airlocks in said connecting tube and thereby providing sufficiently low backpressure such that a patient having a urinary bladder drained with said system maintains an average residual bladder urine volume of less than about 50 cubic centimeters over a period of at least four hours after initial drainage without manipulation of components of said system.

51. The method of claim 50, wherein said means provides sufficiently low backpressure such that a patient having a urinary bladder drained with said system maintains an average residual bladder urine volume of less than about 25 cubic centimeters over a period of at least eight hours after initial drainage without manipulation of components of said system.

52. The method of claim 50, wherein said catheter is a Foley catheter.

53. The method of claim 50, wherein said means for reducing or eliminating airlocks comprises a means for producing a downward spiral shape in said connecting tube.

54. The method of claim 53, wherein said means for reducing or eliminating airlocks comprises an external semi-rigid coil through which said connecting tube is threaded.

55. The method of claim 53, wherein said means for reducing or eliminating airlocks comprises an external semi-rigid coil to which said connecting tube is attached.

56. The method of claim 53, wherein said means for reducing or eliminating airlocks comprises a semi-rigid coil formed from all or a part of said connecting tube.

57. The method of claim 50, wherein said means for reducing or eliminating airlocks comprises a tensioner attached to said connecting tube.

58. The method of claim 57, wherein said tensioner comprises a spring or elastic strap attached to said connecting tube.

59. The method of claim 58, wherein said tensioner is removably attached to said connecting tube.

60. The method of claim 58, wherein said tensioner comprises a clip for attachment to bedding, a bedside, or an iv stand.

61. The method of claim 50, wherein said means for reducing or eliminating airlocks comprises an elastic or elasticized bellows tubing.

62. The method of claim 50, wherein said means for reducing or eliminating airlocks comprises a form for wrapping excess collection tubing.

63. The method of claim 62, wherein said form holds excess collection tubing in a downward spiral shape.

64. The method of claim 50, wherein said means for reducing or eliminating airlocks comprises a tubing auto-winder.

65. A kit for draining a biological fluid from a site in a subject, said kit comprising:

a collecting means for application to said site; and

a connecting tube comprising a means for reducing or eliminating airlocks in said connecting tube and thereby providing sufficiently low backpressure such that a patient having a urinary bladder drained with said connecting tube maintains an average residual bladder urine volume of less than about 50 cubic centimeters over a period of at least four hours after initial drainage without manipulation of components of said system.

66. The kit of claim 65, further comprising a waste receptacle for receiving biological fluid drained from said site.

67. The kit of claim 65, wherein said collecting means is a Foley catheter.

68. The kit of claim 65, wherein said collecting means is selected from the group consisting of a Foley catheter, a Jackson Pratt tube, and a nasogastric tube.

69. The kit of claim 65, wherein said kit further comprises instructional materials teaching the use of said drainage device with said collecting tube.

70. An iv stand, said iv stand comprising a container or support for containing or holding a waste receptacle for biological fluids.

71. The iv stand of claim 70, wherein said iv stand is on wheels.