Vascular hole closure device

A device for closing an aperture in a vessel wall, the aperture having an external opening in an external region of the vessel wall and an internal opening in an internal region of the vessel wall, the device comprising:

• a covering member positionable inside the vessel against the internal opening of the aperture, the covering member having a dimension to prevent egress of fluid through the aperture and defining a first axis along a longitudinal length of the covering member, the covering member having a first opening, a second opening, a third opening, a fourth opening, a proximal surface and a distal surface, the distal surface having a concave surface and the proximal surface having a raised surface generally aligned with the concave surface, the first, second, third and fourth openings formed in the raised surface, each of the first, second, third and fourth openings on the raised surface has a length measured from a proximal to a distal end greater than a thickness of a first and second outer edge of the covering member, the thickness measured from the proximal surface to the distal surface of the covering member, wherein the concave surface is spaced inwardly from a first and second outer edge of the covering member to leave a non-concave area on each side of the concave surface such that the non-concave surface area is positioned outwardly of the concave surface along the first axis, wherein the concave surface defines a first length and a first width, and the raised surface defines a second length and a second width, wherein the first length exceeds the second length, and the first width exceeds the second width;
• a first retainer positionable external of the vessel configured to retain the covering member in a blocking position;
• a first flexible connecting member operatively connecting the covering member and the first retainer, the first flexible connecting member advancing the first retainer toward the covering member, the first opening of the covering member configured to restrict movement of the first flexible connecting member;
• a second retainer positionable external of the vessel configured to retain the covering member in a blocking position;
• a second flexible connecting member operatively connecting the covering member and the second retainer, the second flexible connecting member independent of the first connecting member and advancing the second retainer toward the covering member, the third opening of the covering member configured to restrict movement of the second flexible connecting member, wherein the first opening and the third opening each include angled internal walls at opposite ends thereof to facilitate movement of the first flexible connecting member and the second flexible connecting member in relation to the covering member;
• and
• wherein the first and second retainers each have an outer circumference and the vessel wall is configured to be interposed between the outer circumference of the first and second retainers and the covering member.