Apparatus and methods for occluding an access tube anastomosed to sidewall of an anatomical vessel
First Claim
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1. A method for percutaneously and repeatedly accessing a body fluid such as blood in an anatomical vessel, comprising:
- obtaining an access tube having an access end and an anastomosis end with a conduit extending from the access end to the anastomosis end;
anastomosing the anastomosis end of the access tube to the sidewall of an anatomical vessel, wherein the access tube has sufficient length so that the access tube extends percutaneously with the access end being extracorporeally positioned;
occluding the conduit of the access tube with an occluder at the anastomosis end;
removing the occluder to provide fluid communication between the lumen of the anatomical vessel and the conduit of the access tube;
re-occluding the conduit of the access tube; and
flushing the conduit with a flushing fluid after the conduit of the access tube has been re-occluded.
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Accused Products
Abstract
The invention provides vascular access methods, systems and devices facilitating long-term, repeated, percutaneous access to a patient'"'"'s blood stream. This is provided by an access tube apparatus adapted for anastomosis to the sidewall of a target anatomical vessel. The access tube has a replaceable occluder that fits within the conduit of the access tube in between blood treatments or when vascular access is otherwise not needed. When such access is desired, the percutaneously accessible occluder is simply removed from the access tube.
109 Citations
47 Claims
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1. A method for percutaneously and repeatedly accessing a body fluid such as blood in an anatomical vessel, comprising:
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obtaining an access tube having an access end and an anastomosis end with a conduit extending from the access end to the anastomosis end; anastomosing the anastomosis end of the access tube to the sidewall of an anatomical vessel, wherein the access tube has sufficient length so that the access tube extends percutaneously with the access end being extracorporeally positioned; occluding the conduit of the access tube with an occluder at the anastomosis end; removing the occluder to provide fluid communication between the lumen of the anatomical vessel and the conduit of the access tube; re-occluding the conduit of the access tube; and flushing the conduit with a flushing fluid after the conduit of the access tube has been re-occluded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for percutaneously and repeatedly accessing a body fluid such as blood in an anatomical vessel, comprising:
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obtaining an access tube having an access end and an anastomosis end with a conduit extending from the access end to the anastomosis end; anastomosing the anastomosis end of the access tube to the sidewall of an anatomical vessel, wherein the access tube has sufficient length so that the access tube extends percutaneously with the access end being extracorporeally positioned; occluding the conduit of the access tube at the anastomosis end with an occluder after the anastomosis end of the access tube has been anastomosed to the sidewall of the anatomical vessel; removing the occluder to provide fluid communication between the lumen of the anatomical vessel and the conduit of the access tube; providing fluid communication between the access end of the access tube and a device to enable a fluid to flow from the conduit of the access tube to the device; re-occluding the conduit of the access tube; and flushing the conduit with a flushing fluid after the conduit of the access tube has been re-occluded. - View Dependent Claims (18)
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19. An apparatus for facilitating repeated percutaneous access to a body fluid such as blood in an anatomical vessel, comprising:
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an access tube having an access end and an anastomosis end with a conduit extending from the access end to the anastomosis end, wherein the anastomosis end is configured to be attached to the sidewall of a vessel at an anastomosis opening, and wherein the access end is configured to extend percutaneously and be extracorporeally accessible; and an occluder configured to fit within the access tube conduit to control fluid flow between the anatomical vessel and the access tube, wherein the occluder is removable from the conduit while the access tube remains attached to the vessel; wherein the apparatus is configured to enable a flushing fluid to be delivered into the access tube after the access tube has been re-occluded by the occluder. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. An apparatus for facilitating repeated percutaneous access to a body fluid such as blood in an anatomical vessel, comprising:
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access tube means for accessing an anastomosed vessel, wherein the access tube means has an access end and an anastomosis end with a conduit extending from the access end to the anastomosis end, wherein the anastomosis end is configured to be attached to the sidewall of a vessel, and wherein the access end is configured to extend percutaneously and be extracorporeally accessible; and occluding means for blocking fluid communication between the vessel and the access tube, wherein the occluding means can be selectively removed from the access tube means to allow for fluid communication between the vessel and the access tube means; wherein the apparatus is configured to enable a flushing fluid to be delivered into the access tube means after the access tube means has been re-occluded by the occluding means. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification