Apparatus for vessel access closure
AssigneePromed, Inc.
InventorsRichard S. Ginn, Nicanor Domingo, Hans F. Valencia, Robert Elliot DeCou, Scott Yerby
Life of this patent
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Abstract
Embodiments are described for closing vascular access ports, such as arteriotomies, which involve placement and deployment of an expandable device configured to prevent blood flow across a subject arteriotomy while also keeping disturbance of intravascular flow to a minimum. Suitable prostheses may comprise one or more frames constructed from lengths of flexible materials, such as shape memory alloys or polymers. Such frames may be coupled to sheetlike or tube-like structures configured to spread loads, minimize thrombosis which may be related to intravascular flow, and maintain hemostasis.
Claims31
An apparatus for closing a hole formed in a wall of a blood vessel, comprising:
- a. a closure device having a longitudinal axis;
- and
- b. a deployment member having a proximal portion and a controllably movable distal portion;
- the proximal portion having a proximal portion longitudinal axis and the distal portion having a distal portion longitudinal axis and being removably coupled to the closure device;
- wherein in a first configuration the longitudinal axes of the closure device, deployment member proximal portion, and deployment member distal portion are oriented relative to each other in a manner selected to facilitate insertion of the closure device through the hole;
- and wherein after controllably moving the deployment member distal portion, a second configuration is formed that geometrically prevents the closure device from exiting the hole as the deployment member is controllably decoupled and withdrawn away from the closure device.
Dependencies are inferred from the claim text.