Vascular access device
AssigneeAccess for Life Inc.
InventorsRoger A. Mason, Philip Libman
Life of this patent
Estimating the term…
Abstract
A system and method are provided for vascular access, enabling repetitive vascular access while preventing damage to the blood vessel wall, reducing hematomas, improving flow in a vessel, preventing back-wall perforation, and enabling improved fistula maturation and care. The system includes an implanted conduit that is incorporated into surrounding fibrous tissue that can guide a needle and/or catheter from a puncture site on the skin to a vessel wall, which may be used to provide repetitive vascular access for persons requiring hemodialysis or chemotherapy.
Claims26
A vascular access device for accessing a blood vessel, adapted to couple to an outer wall of the blood vessel and a dermal layer of a skin, comprising:
- a body;
- a lumen passing through the body, from a first end of the body to a second end of the body opposite said first end;
- a first opening through said first end of said body to said lumen;
- a second opening through said second end of said body to said lumen, wherein said lumen is sized and shaped to direct a tip of a dialysis needle entering said body through said first opening to exit said body through said second opening;
- a vessel interface surrounding the second opening at said second end, adapted for attachment to the outer wall of the blood vessel;
- and
- a skin interface surrounding the first opening at said first end, sized and shaped for direct attachment of said first end of said body to the dermal layer of the skin underneath the dermal layer of the skin;
- and wherein said vessel interface and said skin interface are on opposite ends of said body.
A method of providing access to a blood vessel utilizing an under skin access device including a body and a lumen passing through the body from a first opening at a first end of the body to a second opening at a second end of the body opposite said first end, the first end of the body including a skin interface surrounding the first opening and the second end of the body including a vessel interface surrounding the second opening, comprising:
- attaching the vessel interface to an outer wall of the blood vessel;
- and
- directly attaching the skin interface to a dermal layer of a skin underneath the dermal layer of the skin of a subject.
Dependencies are inferred from the claim text.