Multi-Port Catheter System with Medium Control and Measurement Systems for Therapy and Diagnosis Delivery

• US 20090048577A1
• Filed: 01/09/2007
• Published: 02/19/2009
• Est. Priority Date: 01/09/2006
• Status: Abandoned Application

• Current Assignee: University of Virginia
• Original Assignee: Regents of the University of California (University of California), University of Virginia Patent Foundation (University of Virginia)
• Inventors: Latchaw, Richard E., Gillies, George T.
• Application Number:
  US12/160,378
• Publication Number:
  US 20090048577A1
• Time in Patent Office: Days
• US Class Current: 604/510
• CPC Class Codes: A61B 5/0084 for introduction into the body, e.g. by catheters A61B5/1459 takes precedence
• CPC Class Codes: A61B 5/064 using markers A61B5/062 takes precedence
• CPC Class Codes: A61B 5/6852 Catheters
• CPC Class Codes: A61B 6/00 Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment instruments measuring radiation intensity for application in the field of nuclear medicine, e.g. in vivo counting, G01T1/161; apparatus for taking X-ray photographs G03B42/02
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked

Abstract

A series of embodiments of multi-lumen, multisegmented (or variable diameter) catheters and associated multi-channel flow control and measurement systems and methods for simultaneous delivery of a medium to a plurality of locations is described. The need for precise, stable reliable, and repeatable flow control in therapy delivery catheters is crucial to the efficacious treatment of the clinical manifestations of peripheral vascular disease (PVD) and other such maladies. Such treatments may involve the placement of multi-lumen catheters into peripheral arterial trees, with the subsequent need to govern the flow dynamics within each individual lumen of the multi-lumen device in such a way that an optimum distribution of the agent is achieved intra-arterially. Combinations of pumps, flow monitors, pressure monitors, feedback loops and related hardware and software collectively capable of achieving this goal are described. In other embodiments, this device and method could be used for infusions into tissues and solid organs, and microcoil systems can be added to the various components of the catheter systems to improve the imaging quality during MR-guided procedures.

Claims

1. A catheter system for transferring at least one medium into a plurality of locations within a body of a patient, said system comprising:

an outer tube having a distal end and a proximal end, and having a wall extending longitudinally there between;

at least one inner tube disposed within said outer tube, said at least one inner tube having a distal end and a proximal end, and having a wall extending longitudinally there between;

said at least one inner tube being adapted to move longitudinally and/or circumferentially relative to said outer tube to move along the body to allow transference of the medium between said inner tube and said plurality of locations within the body;

an imaging system to provide imaging data; and

a medium control system to control the medium.

2. The system of claim 1, said medium control system comprising:

a regulator system to regulate the pressures and/or flows of medium to the plurality of locations.

3. The system of claim 2, said medium control system further comprising:

a computer processor and a feedback system.

4. The system of claim 1 wherein said transfer of the medium to the plurality of locations within the body is accomplished simultaneously.

5. The system of claim 1 wherein said transfer of the medium is accomplished in a scheduled combination of transfers that is clinically desirable.

6. The system of claim 1 wherein said medium control system is a regulator system and/or a feedback system.

7. The system of claim 1, further comprising;

at least one outer tube aperture disposed on said outer tube wall; and

at least one inner tube aperture disposed on said inner tube wall.

8. The system of claim 7, wherein said at least one inner tube being adapted to move longitudinally and/or circumferentially relative to said outer tube to provide for said at least one inner tube aperture to be in communication with said at least one outer tube aperture.

9. The system of claim 7, wherein said at least one inner tube aperture and/or said at least one outer tube aperture may be a recess, port, duct, trough, bore, inlet, hole, perforation, channel, passage, slot, orifice, porthole, conduit, or semi-permeable structure.

10. The system of claim 1, wherein at least a portion of said outer tube wall is a semipermeable membrane.

11. The system of claim 1, wherein at least a portion of said inner tube wall is a semipermeable membrane.

12. The system of claim 1, wherein said medium control system comprises:

at least one pump device,

at least one pressure monitoring device; and

at least one flow-rate measurement device, said flow-rate measurement device adapted to measure amounts of the medium traveling in said one or more inner tubes.

13. The system of claim 1, wherein said patient comprises a human or any animal.

14. The system of claim 1, wherein said outer tube comprises a variable diameter along its axial length.

15. The system of claim 14, wherein said variable diameter outer tube comprises a multi-segment tube.

16. The system of claim 14, wherein said variable diameter outer tube has a diameter that increases and/or decreases.

17. The system of claim 1, wherein said outer tube comprises a fixed diameter.

18. The system of claim 1, wherein said inner tube comprises a variable diameter along its axial length.

19. The system of claim 18, wherein said variable diameter inner tube comprises a multi-segment tube.

20. The system of claim 18, wherein said variable diameter inner tube has a diameter that increases and/or decreases.

21. The system of claim 1, wherein said inner tube comprises a fixed diameter.

22. The system of claim 1, wherein two or more of said at least one inner tube comprise non-communicating channels for the transfer of one or more mediums to the plurality of locations.

23. The system of claim 1, wherein the transference of one or more mediums to the plurality of locations is effected by said medium control system that independently selects pressures and/or flow rates under the guidance of the clinician operating it.

24. The system of claim 1, wherein the transferring of the medium comprises delivering the medium from said inner tube to the body.

25. The system of claim 24, wherein said delivered medium comprises at least one of thrombolytic agents, chemotherapies, cell slurries, gene therapy vectors, growth factors, angiogenesis factors, radionuclide slurries, anti-infection agents, anti-tumor compounds, apoptosis-inducing agents, receptor-bound agents, brachytherapeutic agents, antiproliferative agents, cleansing or ravaging agents, and/or other types of drugs, therapies, or agents.

26. The system of claim 24, wherein said delivered medium comprises at least one of contrast agents, diagnostic agents, cleansing or ravaging agents, and/or therapeutic agents.

27. The system of claim 1, wherein the body comprises an organ.

28. The system of claim 27, wherein said organ comprises hollow organs, parenchymal tissue, stromal tissue, and/or ducts.

29. The system of claim 1, wherein said body comprises a tubular structure.

30. The system of claim 29, wherein said tubular structure comprises a blood vessel.

31. The system of claim 1, wherein the transferring of the medium comprises withdrawing the medium from the body to said inner tube.

32. The system of claim 31, wherein said withdrawn medium comprises at least one of edematous fluids, blood, cerebrospinal fluid, interstitial fluid, infected materials, neoplastic fluids and tissues, thrombolysis byproducts including clot fragments and the like, metabolic byproducts, excess drugs and agents, and other such substances.

33. The system of claim 1, wherein the longitudinal and/or circumferential movement of the inner tube determines the location of transfer of the medium to the plurality of locations.

34. The system of claim 1, wherein the longitudinal and/or circumferential movement of the inner tube determines the aperture size and therefore, at least in part, the transfer rate.

35. The system of claim 1, wherein said inner tube further comprises an endport at said distal end of said inner tube, wherein said end port is adapted for said medium to transfer through to the plurality of locations.

36. The system of claim 1, wherein said at least one inner tube at least partially extends out from the distal end of said outer tube during the transferring.

37. The system of claim 1, wherein said at least one inner tube does not extend out from the distal end of said outer tube during transferring.

38. The system of claim 1, further comprising at least one microcoil system in communication with said catheter system for imaging.

39. The system of claim 38, wherein said at least one microcoil system is disposed on said inner tube and/or said outer tube.

40. The system of claim 1, wherein said imaging system comprises at least one of:

magnetic resonance imaging, magnetic resonance angiography, functional magnetic resonance imaging (MRI), interventional magnetic resonance imaging, biplanar fluoroscopy, CT, nuclear medicine cameras, standard x-ray imaging, Position Emission Tomography (PET scans), and other such imaging systems.

41. The system of claim 1, wherein the plurality of locations comprises:

a thrombotic lesion or other type of occlusive lesion or plurality of such lesions.

42. The system of claim 1, wherein said medium control system provides flow rate and pressure data from said one or more inner tubes.

43. The system of claim 1, further comprising imaging contrast enhancement agents that are provided at the plurality of target locations.

44. The system of claim 1, wherein the plurality of locations are located at an elongated section of the body, wherein said outer tube remains at least substantially fixed in position during the transferring of the at least one medium to the elongated section.

45. The system of claim 44, wherein said body comprises a blood vessel and said elongated section of the blood vessel is at least about 0.1 mm to about 1 cm.

46. The system of claim 44, wherein said body comprises a blood vessel and said elongated section of the blood vessel is at least about 1 cm to about 10 cm.

47. The system of claim 44, wherein said body comprises a blood vessel and said elongated section of the blood vessel is greater than about 10 cm.

48. The system of claim 44, wherein said body comprises a tubular structure and said elongated section of the tubular structure is at least about 0.1 mm to about 1 cm.

49. The system of claim 44, wherein said body comprises a tubular structure and said elongated section of the tubular structure is at least about 1 cm to about 10 cm.

50. The system of claim 44, wherein said body comprises a tubular structure and said elongated section of the tubular structure is greater than about 10 cm.

51. The system of claim 44, wherein said body comprises an organ and said elongated section of the organ is at least about 0.1 mm to about 1 cm.

52. The system of claim 44, wherein said body comprises an organ and said elongated section of the organ is at least about 1 cm to about 10 cm.

53. The system of claim 44, wherein said body comprises an organ and said elongated section of the organ is at greater than about 10 cm.

54. The system of claim 1 further comprising a guidewire.

55. The system of claim 54, wherein said guidewire is used for guiding said at least one inner tube.

56. The system of claim 1, wherein the transfer of the medium comprises transferring a therapeutic agent and/or a diagnostic agent separately to two or more different said pluralities of locations in the body.

57. The system of claim 1, further comprising at least one flow-control compartment that at least partially surrounds said inner tube and/or said outer tube.

102. The method of claim 10, wherein said body comprises a blood vessel and said elongated section of the blood vessel is at least about 0.1 mm to about 1 cm.

105. The method of claim 10, wherein said body comprises a tubular structure and said elongated section of the tubular structure is at least about 0.1 mm to about 1 cm.

58. A method for transferring at least one medium into a plurality of locations within a body of a patient using a catheter system, said method comprising:

inserting an outer tube into the body, said outer tube having a distal end and a proximal end, and having a wall extending longitudinally there between;

inserting at least one inner tube disposed within said outer tube, said at least one inner tube having a distal end and a proximal end, and having a wall extending longitudinally there between;

said at least one inner tube being adapted to move longitudinally and/or circumferentially relative to said outer tube to move along the body to allow transference of the medium between said inner tube and said plurality of locations within the body;

imaging data using an imaging system; and

controlling the medium.

59. The method of claim 58, said controlling of the medium comprises:

regulating the pressures and/or flows of medium to the plurality of locations.

60. The method of claim 59, said medium of controlling the medium further comprising:

providing a computer processor and a feedback system.

61. The method of claim 58 wherein said transferring of the medium to the plurality of locations within the body is accomplished simultaneously.

62. The method of claim 58 wherein said transferring of the medium is accomplished in a scheduled combination of transfers that is clinically desirable.

63. The M of claim 58 wherein said controlling the medium is accomplished using a medium control system, wherein said medium control system is a regulator system and/or a feedback system.

64. The method of claim 58, further comprising:

at least one outer tube aperture disposed on said outer tube wall; and

at least one inner tube aperture disposed on said inner tube wall.

65. The method of claim 64, wherein said at least one inner tube being adapted to move longitudinally and/or circumferentially relative to said outer tube to provide for said at least one inner tube aperture to be in communication with said at least one outer tube aperture.

66. The method of claim 64, wherein said at least one inner tube aperture and/or said at least one outer tube aperture may be a recess, port, duct, trough, bore, inlet, hole, perforation, channel, passage, slot, orifice, porthole, conduit, or semi-permeable structure.

67. The method of claim 58, wherein at least a portion of said outer tube wall is a semipermeable membrane.

68. The method of claim 58, wherein at least a portion of said inner tube wall is a semipermeable membrane.

69. The method of claim 58, wherein said controlling the medium is accomplished with a medium control system, said medium control system comprises:

at least one pump device,

at least one pressure monitoring device; and

at least one flow-rate measurement device, said flow-rate measurement device adapted to measure amounts of the medium traveling in said one or more inner tubes.

70. The method of claim 58, wherein said patient comprises a human or any animal.

71. The method of claim 58, wherein said outer tube comprises a variable diameter along its axial length.

72. The method of claim 71, wherein said variable diameter outer tube comprises a multi-segment tube.

73. The method of claim 71, wherein said variable diameter outer tube has a diameter that increases and/or decreases.

74. The method of claim 58, wherein said outer tube comprises a fixed diameter.

75. The method of claim 58, wherein said inner tube comprises a variable diameter along its axial length.

76. The method of claim 75, wherein said variable diameter inner tube comprises a multi-segment tube.

77. The method of claim 75, wherein said variable diameter inner tube has a diameter that increases and/or decreases.

78. The method of claim 58, wherein said inner tube comprises a fixed diameter.

79. The method of claim 58, wherein two or more of said at least one inner tube comprise non-communicating channels for the transferring of one or more mediums to the plurality of locations.

80. The method of claim 58, wherein the transferring of one or more mediums to the plurality of locations is effected by said controlling the medium comprises:

independently selecting pressures and/or flow rates under the guidance of the clinician operating it.

81. The method of claim 58, wherein the transferring of the medium comprises delivering the medium from said inner tube to the body.

82. The method of claim 81, wherein said delivered medium comprises at least one of thrombolytic agents, chemotherapies, cell slurries, gene therapy vectors, growth factors, angiogenesis factors, radionuclide slurries, anti-infection agents, anti-tumor compounds, apoptosis-inducing agents, receptor-bound agents, brachytherapeutic agents, antiproliferative agents, cleansing or ravaging agents, and/or other types of drugs, therapies, or agents.

83. The method of claim 81, wherein said delivered medium comprises at least one of contrast agents, diagnostic agents, cleansing or lavaging agents, and/or therapeutic agents.

84. The method of claim 58, wherein the body comprises an organ.

85. The method of claim 84, wherein said organ comprises hollow organs, parenchymal tissue, stromal tissue, and/or ducts.

86. The method of claim 58, wherein said body comprises a tubular structure.

87. The method of claim 86, wherein said tubular structure comprises a blood vessel.

88. The method of claim 58, wherein the transferring of the medium comprises withdrawing the medium from the body to said inner tube.

89. The method of claim 88, wherein said withdrawn medium comprises at least one of edematous fluids, blood, cerebrospinal fluid, interstitial fluid, infected materials, neoplastic fluids and tissues, thrombolysis byproducts including clot fragments and the like, metabolic byproducts, excess drugs and agents, and other such substances.

90. The method of claim 58, wherein the longitudinal and/or circumferential movement of the inner tube determines the location of transfer of the medium to the plurality of locations.

91. The method of claim 58, wherein the longitudinal and/or circumferential movement of the inner tube determines the aperture size and therefore, at least in part, the transfer rate.

92. The method of claim 58, wherein said inner tube further comprises an endport at said distal end of said inner tube, wherein said end port is adapted for said medium to transfer through to the plurality of locations.

93. The method of claim 58, wherein said at least one inner tube at least partially extends out from the distal end of said outer tube during the transferring.

94. The method of claim 58, wherein said at least one inner tube does not extend out from the distal end of said outer tube during transferring.

95. The method of claim 58, further comprising providing at least one microcoil system in communication with said catheter system for imaging.

96. The method of claim 95, wherein said at least one microcoil system is disposed on said inner tube and/or said outer tube.

97. The method of claim 58, wherein said imaging comprises an imaging system comprising at least one of:

magnetic resonance imaging, magnetic resonance angiography, functional magnetic resonance imaging (MRI), interventional magnetic resonance imaging, biplanar fluoroscopy, CT, nuclear medicine cameras, standard x-ray imaging, Position Emission Tomography (PET scans), and other such imaging systems.

98. The method of claim 58, wherein the plurality of locations comprises:

a thrombotic lesion or other type of occlusive lesion or plurality of such lesions.

99. The method of claim 58, wherein said controlling the medium is accomplished with a medium control system, said medium control system provides flow rate and pressure data from said one or more inner tubes.

100. The method of claim 58, further comprising providing imaging contrast enhancement agents that are provided at the plurality of target locations.

101. The method of claim 58, wherein the plurality of locations are located at an elongated section of the body, wherein said outer tube remains at least substantially fixed in position during the transferring of the at least one medium to the elongated section.

103. The method of claim 101, wherein said body comprises a blood vessel and said elongated section of the blood vessel is at least about 1 cm to about 10 cm.

104. The method of claim 101, wherein said body comprises a blood vessel and said elongated section of the blood vessel is greater than about 10 cm.

106. The method of claim 101, wherein said body comprises a tubular structure and said elongated section of the tubular structure is at least about 1 cm to about 10 cm.

107. The method of claim 101, wherein said body comprises a tubular structure and said elongated section of the tubular structure is greater than about 10 cm.

108. The method of claim 101, wherein said body comprises an organ and said elongated section of the organ is at least about 0.1 mm to about 1 cm.

109. The method of claim 101, wherein said body comprises an organ and said elongated section of the organ is at least about 1 cm to about 10 cm.

110. The method of claim 101, wherein said body comprises an organ and said elongated section of the organ is at greater than about 10 cm.

111. The method of claim 58, further comprising:

guiding said inner tube and/or outer tube using one or more guidewires.

112. The method of claim 111, wherein said guidewire is used for guiding said at least one inner tube.

113. The method of claim 58, wherein the transferring of the medium comprises transferring a therapeutic agent and/or a diagnostic agent separately to two or more different said pluralities of locations in the body.

114. The method of claim 58, further comprising controlling the flow of blood, fluid or material outside said inner tube and/or said outer tube.