Anti-occlusion catheter
First Claim
1. A method of performing a diagnostic or therapeutic procedure in a human or animal comprising the steps of:
- a) providing a catheter for the administration of fluid or pharmaceutical agents, or for hemodialysis comprising;
i) a proximal control end comprising a housing with a proximal end and a distal end;
ii) a distal delivery end;
iii) an elongated intermediate portion between the proximal control end and a distal delivery end;
iv) one or more than one delivery lumen within the intermediate portion extending from the proximal control end to the distal delivery end;
v) one or more than one inflation balloon in each delivery lumen; and
vi) one or more than one inflation lumen in the intermediate portion extending from the proximal control end to the one or more than one inflation balloon in the one or more than one delivery lumen, and connected to the one or more than one inflation balloon through one or more than one fenestration;
where the proximal control end further comprises a mechanism for aspiration and injection of fluids through the distal delivery end; and
where the proximal control end further comprises a mechanism for controlling inflation of the one or more than one inflation balloon;
b) placing the catheter subcutaneously into the human or animal with the distal end inserted into a target vessel;
c) injecting fluid into or aspirating fluid from the proximal control end of the catheter; and
d) allowing the fluid to flow through the distal delivery end;
where inflating the one or more than one inflation balloon in the distal delivery end is achieved by depressing a portion of the proximal control end through skin overlying the placed catheter.
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Accused Products
Abstract
A catheter for the administration of fluid or pharmaceutical agents, or for hemodialysis comprising a proximal control end comprising a housing with a proximal end and a distal end, a distal delivery end, an elongated intermediate portion between the proximal control end and a distal delivery end, one or more than one delivery lumen within the intermediate portion extending from the proximal control end to the distal delivery end; one or more than one inflation balloon in each delivery lumen, and one or more than one inflation lumen in the intermediate portion extending from the proximal control end to the one or more than one inflation balloon in the one or more than one delivery lumen, and connected to the one or more than one inflation balloon through one or more than one fenestration, where the proximal control end further comprises a mechanism for aspiration and injection of fluids through the distal delivery end, and where the proximal control end further comprises a mechanism for controlling inflation of the one or more than one inflation balloon.
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Citations
46 Claims
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1. A method of performing a diagnostic or therapeutic procedure in a human or animal comprising the steps of:
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a) providing a catheter for the administration of fluid or pharmaceutical agents, or for hemodialysis comprising;
i) a proximal control end comprising a housing with a proximal end and a distal end;
ii) a distal delivery end;
iii) an elongated intermediate portion between the proximal control end and a distal delivery end;
iv) one or more than one delivery lumen within the intermediate portion extending from the proximal control end to the distal delivery end;
v) one or more than one inflation balloon in each delivery lumen; and
vi) one or more than one inflation lumen in the intermediate portion extending from the proximal control end to the one or more than one inflation balloon in the one or more than one delivery lumen, and connected to the one or more than one inflation balloon through one or more than one fenestration;
where the proximal control end further comprises a mechanism for aspiration and injection of fluids through the distal delivery end; and
where the proximal control end further comprises a mechanism for controlling inflation of the one or more than one inflation balloon;
b) placing the catheter subcutaneously into the human or animal with the distal end inserted into a target vessel;
c) injecting fluid into or aspirating fluid from the proximal control end of the catheter; and
d) allowing the fluid to flow through the distal delivery end;
where inflating the one or more than one inflation balloon in the distal delivery end is achieved by depressing a portion of the proximal control end through skin overlying the placed catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 36, 37, 38, 39)
where the external surface or the intraluminal surface or both comprise at least one hydrophilic coating.
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21. The method of claim 1, where the intermediate portion of the provided catheter comprises an external surface and the one or more than one delivery lumen comprises an intraluminal surface;
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where the external surface or the intraluminal surface or both comprise heparin molecules bound to the external surface or to the intraluminal surface, or both, to reduce the accumulation of thrombus and fibrin on these surfaces.
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22. The method of claim 1, where the inflation lumen of the provided catheter has an internal diameter of between about 0.4 and about 0.7 mm.
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23. The method of claim 1, where the housing of the provided catheter comprises one or more than one anchoring device.
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36. The method of claim 21, further comprising preventing flow through the distal delivery end by inflating the one or more than one inflation balloon in the distal delivery end.
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37. The method of claim 36, where inflating the one or more than one inflation balloon in the distal delivery end is achieved by depressing a portion of the proximal control end through skin overlying the placed catheter.
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38. The method of claim 36, further comprising allowing flow through the distal delivery end to resume by deflating the one or more than one inflation balloon in the distal delivery end.
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39. The method of claim 21, further comprising anchoring the catheter to subcutaneous tissues of the human or animal.
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24. A method of performing a diagnostic or therapeutic procedure in a human or animal comprising the steps of:
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a) providing a catheter for the administration of fluid or pharmaceutical agents, or for hemodialysis comprising;
i) a proximal control end comprising a housing with a proximal end and a distal end;
ii) a distal delivery end;
iii) an elongated intermediate portion between the proximal control end and a distal delivery end;
iv) one or more than one delivery lumen within the intermediate portion extending from the proximal control end to the distal delivery end;
v) one or more than one inflation balloon in each delivery lumen; and
vi) one or more than one inflation lumen in the intermediate portion extending from the proximal control end to the one or more than one inflation balloon in the one or more than one delivery lumen, and connected to the one or more than one inflation balloon through one or more than one fenestration;
where the proximal control end further comprises a mechanism for aspiration and injection of fluids through the distal delivery end; and
where the proximal control end further comprises a mechanism for controlling inflation of the one or more than one inflation balloon;
where deflating the one or more than one inflation balloon in the distal delivery end is achieved by depressing a portion of the proximal control end through skin overlying the placed catheter;
b) placing the catheter subcutaneously into the human or animal with the distal end inserted into a target vessel;
c) injecting fluid into or aspirating fluid from the proximal control end of the catheter; and
d) allowing the fluid to flow through the distal delivery end;
where deflating the one or more than one inflation balloon in the distal delivery end is achieved by depressing a portion of the proximal control end through skin overlying the placed catheter. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 40, 41, 42, 43, 44, 45, 46)
where the external surface or the intraluminal surface or both comprise at least one hydrophilic coating.
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44. The method of claim 24, where the intermediate portion of the provided catheter comprises an external surface and the one or more than one delivery lumen comprises an intraluminal surface;
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where the external surface or the intraluminal surface or both comprise heparin molecules bound to the external surface or to the intraluminal surface, or both, to reduce the accumulation of thrombus and fibrin on these surfaces.
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45. The method of claim 24, where the inflation lumen of the provided catheter has an internal diameter of between about 0.4 and about 0.7 mm.
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46. The method of claim 24, where the housing of the provided catheter comprises one or more than one anchoring device.
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34. The method comprising 33, where the mechanism for aspiration and injection of fluids further comprises constricting means for constricting the aspiration and injection conduit.
Specification