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US 2015/0087916 A1Published application
Devices and methods for percutaneous access, hemostasis, and closure
AssigneeNorthwestern University
InventorsPatrick M. McCarthy, Swaminadhan Gnanashanmugam, Usha Periyanayagam, Ingrid Lin, Leah Ralph, Christopher Lubeck
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Abstract
The present invention provides methods and devices for obtaining percutaneous access, maintaining hemostasis, and providing closure of openings in tissues of the body. In particular, the present invention provides methods and devices for maintaining hemostasis and providing closure surgical incisions of the left ventricular apex of the heart.
Claims11
-19. (canceled)
A method for occluding blood flow through an incision a coronary wall of a human heart comprising inserting into said incision a medical closure device comprising:
- a cylinder element;
- a proximal expanded element that extends circumferentially around the entire circumference of said cylinder element, wherein said proximal expanded element is configured to adopt a reduced profile configuration upon inserting said proximal expanded element into the confined space and to readopt a high profile configuration upon exit from said confined space;
- and
- a distal expanded element that extends circumferentially around the entire circumference of said cylinder element, wherein said distal expanded element is configured to adopt a reduced profile configuration upon inserting said distal expanded element into a confined space and to readopt a high profile configuration upon exit from said incision;
- and wherein when deployed through the incision in the coronary wall of a human heart said distal expanded element forms a seal against the inner surface of the coronary wall, said proximal expanded element forms a seal against the outer surface of the coronary wall, and said medical closure device occludes blood flow through the incision without the need for thrombus formation.
2 more elements
Dependencies are inferred from the claim text.