Apparatus and methods for facilitating repeated vascular access
First Claim
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1. A method for providing repeated access to a body fluid in an anatomical, native vessel, comprising:
- providing an occludable access tube having an anastomosis end;
anastomosing the access tube at its anastomosis end to the sidewall of the anatomical vessel, without sutures, for fluid communication between the anatomical, native vessel and the access tube;
occluding the access tube with an occluder at its anastomosis end to prevent the body fluid in the anatomical, native vessel from entering the access tube;
opening the access tube by selectively moving the occluder so that the occludable access tube is no longer occluded to provide fluid communication between the anatomical, native vessel and the access tube;
enabling fluid communication between the access tube and a device; and
re-occluding the access tube.
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Abstract
The invention provides vascular access methods, systems and devices facilitating long-term, repeated access to any of a patient'"'"'s anatomical vessels and the body fluid therein, such as a patient'"'"'s bloodstream. This is provided by an access tube apparatus adapted for anastomosis to a target anatomical vessel. The access tube has an occluder that fits within the conduit of the access tube when vascular access is not needed. The occluder can be selectively moved or removed to allow for access to the body fluid in the anatomical vessel by way of the access tube.
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Citations
31 Claims
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1. A method for providing repeated access to a body fluid in an anatomical, native vessel, comprising:
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providing an occludable access tube having an anastomosis end; anastomosing the access tube at its anastomosis end to the sidewall of the anatomical vessel, without sutures, for fluid communication between the anatomical, native vessel and the access tube; occluding the access tube with an occluder at its anastomosis end to prevent the body fluid in the anatomical, native vessel from entering the access tube; opening the access tube by selectively moving the occluder so that the occludable access tube is no longer occluded to provide fluid communication between the anatomical, native vessel and the access tube; enabling fluid communication between the access tube and a device; and re-occluding the access tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An apparatus for facilitating repeated access to a body fluid in an anatomical, native vessel, comprising:
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an access tube having an anastomosis end, wherein the anastomosis end is configured for sutureless attachment of the anastomosis end of the access tube to the sidewall of an anatomical, native vessel to enable fluid communication between the anatomical, native vessel and the access tube; and an occluder configured to fit within the access tube at the anastomosis end of the access tube to block fluid communication between the anatomical, native vessel and the access tube, wherein the occluder can be selectively moved to allow for fluid communication between the anatomical, native vessel and the access tube to be re-established. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. An apparatus for facilitating repeated access to a body fluid in an anatomical, native vessel, comprising:
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access tube means for accessing an anastomosed vessel, wherein the access tube means has an anastomosis end configured for sutureless attachment of the anastomosis end of the access tube to the sidewall of an anatomical, native vessel to enable fluid communication between the anatomical, native vessel and the access tube means; and occluding means for selectively occluding an opening in an anatomical, native vessel, wherein the occluding means is configured to fit within the access tube means at the anastomosis end of the access tube to block fluid communication between the anatomical, native vessel and the access tube means, wherein the occluding means can be selectively moved to allow for fluid communication between the anatomical, natively vessel and the access tube means to be re-established.
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Specification