Hemodialysis system and method
First Claim
1. An AV-fistula treatment system, comprising:
- a hemodialysis needle;
at least one treatment assembly comprising an adjustable member that is deliverable in a first configuration with a first outer diameter through the hemodialysis needle and into an AV-fistula, and the adjustable member in the first configuration also being positionable at a location along the AV-fistula;
wherein the adjustable member at the location is adjustable from the first configuration to a second configuration with a second outer diameter that is greater than the first outer diameter;
wherein the adjustable member in the second configuration at the location is actuatable so as to couple energy between the adjustable member and an area adjacent to adjustable member at the location; and
wherein the coupled energy is sufficient to provide a therapeutic affect at least in the area.
2 Assignments
0 Petitions
Accused Products
Abstract
A treatment assembly is positioned along an AV-fistula and couples therapeutic energy to an adjacent area due to a material response to an applied energy field from a remotely located energy source. The treatment assembly may be delivered into the fistula through a hemodialysis needle, or may be secured to the fistula graft itself and implanted therewith within a patient. A cover provides a shield between an anastomosis area and blood flow. Another AV-fistula includes a valved reservoir that receives a fluid agent from a hemodialysis needle while moving the needle into or from the fistula; the agent leaks from the reservoir into the fistula lumen. Another valved fistula is adjustable between an open condition and closed conditions during and between hemodialysis treatments, respectively. Another AV-fistula has a bladder reservoir coupled to a second refillable fluid reservoir and is adapted to locally deliver a therapeutic agent into the fistula lumen.
76 Citations
66 Claims
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1. An AV-fistula treatment system, comprising:
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a hemodialysis needle; at least one treatment assembly comprising an adjustable member that is deliverable in a first configuration with a first outer diameter through the hemodialysis needle and into an AV-fistula, and the adjustable member in the first configuration also being positionable at a location along the AV-fistula; wherein the adjustable member at the location is adjustable from the first configuration to a second configuration with a second outer diameter that is greater than the first outer diameter; wherein the adjustable member in the second configuration at the location is actuatable so as to couple energy between the adjustable member and an area adjacent to adjustable member at the location; and wherein the coupled energy is sufficient to provide a therapeutic affect at least in the area. - 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, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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61. An AV-fistula graft treatment system, comprising:
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a treatment device with a delivery member having an elongate body with a first end portion and a second end portion, and also having a treatment assembly positioned along the first end portion; wherein the treatment assembly is positionable with the first end portion at a location within a lumen of an AV-fistula graft through a hemodialysis needle; and wherein the treatment assembly is actuatable so as to actively cool an area adjacent to the treatment assembly sufficient to cause a therapeutic affect at the location when the AV-fistula graft is implanted within a patient and extending between first and second anastomoses between the first and second end portions, respectively, and first and second blood vessels, also respectively. - View Dependent Claims (62)
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63. A system for treating a condition associated with an AV-fistula graft implanted within a patient and extending between first and second anastomoses between the AV-fistula graft and first and second blood vessels, respectively, wherein the system includes a treatment assembly that is positionable at a location within a lumen of the AV-fistula graft and is actuatable so as to couple energy between the treatment assembly and an area corresponding to the AV-fistula graft and adjacent to the treatment assembly that is sufficient to cause a therapeutic affect to the patient, and wherein:
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the system further comprises a hemodialysis needle; the treatment assembly comprises an adjustable member that is adjustable between a first configuration with a first outer diameter and a second configuration with a second larger outer diameter; the treatment assembly with the adjustable member in the first configuration is deliverable into the lumen of the fistula and to the location through the hemodialysis needle; and the adjustable member is adjustable to the second configuration with the second larger outer diameter in the lumen of the fistula. - View Dependent Claims (64, 65, 66)
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Specification