Subcutaneous vascular access ports and related systems and methods
First Claim
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1. A method of creating a buttonhole in an anatomical vessel that carries a fluid flow, the method comprising:
- determining a position of a subcutaneous vascular access port that comprises a guidance passageway and is attached to a wall of the anatomical vessel such that an opening of the guidance passageway faces a portion of the wall of the anatomical vessel,wherein the guidance passageway is devoid of any closure apparatus;
wherein the wall of the anatomical vessel to which the vascular access port is attached defines a lumen through which the anatomical vessel carries the fluid flow,wherein a longitudinal axis of the anatomical vessel extends through the lumen such that the longitudinal axis of the anatomical vessel does not pass through the portion of the wall of the anatomical vessel that the opening of the vascular access port faces, andwherein the guidance passageway extends through the vascular access port and defines a central axis that is oriented at an angle relative to the longitudinal axis of the anatomical vessel;
advancing a first needle through the skin of the patient and then into the guidance passageway of the vascular access port;
passing the first needle through the guidance passageway toward the opening along a path that is constrained by the guidance passageway;
advancing the first needle through the opening of the guidance passageway; and
passing the first needle through the wall of the anatomical vessel at an insertion site of the anatomical vessel.
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Abstract
Ports for accessing a vessels within a patient include passageways that can guide needles or other access devices directly into the vessels. The ports can be implanted subcutaneously within a patient. Some ports may be used in the creation and use of vascular access buttonholes.
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Citations
26 Claims
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1. A method of creating a buttonhole in an anatomical vessel that carries a fluid flow, the method comprising:
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determining a position of a subcutaneous vascular access port that comprises a guidance passageway and is attached to a wall of the anatomical vessel such that an opening of the guidance passageway faces a portion of the wall of the anatomical vessel, wherein the guidance passageway is devoid of any closure apparatus; wherein the wall of the anatomical vessel to which the vascular access port is attached defines a lumen through which the anatomical vessel carries the fluid flow, wherein a longitudinal axis of the anatomical vessel extends through the lumen such that the longitudinal axis of the anatomical vessel does not pass through the portion of the wall of the anatomical vessel that the opening of the vascular access port faces, and wherein the guidance passageway extends through the vascular access port and defines a central axis that is oriented at an angle relative to the longitudinal axis of the anatomical vessel; advancing a first needle through the skin of the patient and then into the guidance passageway of the vascular access port; passing the first needle through the guidance passageway toward the opening along a path that is constrained by the guidance passageway; advancing the first needle through the opening of the guidance passageway; and passing the first needle through the wall of the anatomical vessel at an insertion site of the anatomical vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of creating a buttonhole in an anatomical vessel that carries a fluid flow, the method comprising:
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advancing a first needle through the skin of the patient and then into a guidance passageway of a subcutaneous vascular access port that is attached to a wall of the anatomical vessel such that an opening of the guidance passageway faces the wall of the anatomical vessel, wherein the guidance passageway is devoid of any closure apparatus, wherein the wall of the anatomical vessel to which the vascular access port is attached defines a lumen through which a longitudinal axis of the anatomical vessel extends and through which the anatomical vessel carries the fluid flow, and wherein the vascular access port comprises a guidance passageway that extends through the vascular access port and defines a central axis that is oriented at an acute angle relative to the longitudinal axis of the anatomical vessel; passing the first needle through the guidance passageway toward the opening of the guidance passageway; advancing the first needle through the opening of the guidance passageway; and passing the first needle through the wall of the anatomical vessel at an insertion site of the anatomical vessel. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of creating a buttonhole in an anatomical vessel that carries a fluid flow, the method comprising:
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advancing a first needle through the skin of the patient and then into a guidance passageway of a subcutaneous vascular access port that is attached to a wall of the anatomical vessel such that an opening of the guidance passageway faces the wall of the anatomical vessel, wherein the guidance passageway is devoid of any closure apparatus, wherein the wall of the anatomical vessel to which the vascular access port is attached defines a lumen through which a longitudinal axis of the anatomical vessel extends and through which the anatomical vessel carries the fluid flow, and wherein the vascular access port comprises a guidance passageway that extends through the vascular access port and defines a central axis that is oriented at an acute angle relative to the longitudinal axis of the anatomical vessel; advancing the first needle through the opening of the guidance passageway to pass through the wall of the anatomical vessel at an insertion site; removing the first needle from the vascular access port and from the patient; advancing a second needle through the skin of the patient and into the guidance passageway of the vascular access port; and advancing the second needle through the opening of the guidance passageway to pass through the wall of the anatomical vessel at the insertion site. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification