Vascular closure device
First Claim
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1. A vascular closure device for treating a passage in a blood vessel wall by closing a passage through tissue proximate to the blood vessel wall, the vascular closure device comprising:
- an elongated housing having a proximal end, a distal end, and a distal section;
a plurality of engagement members which are each adapted to be secured to tissue upon deployment into tissue;
a plurality of deployment members adapted to extend from the distal section of the elongated housing in a distal and radially outward direction with distal most ends of the deployment members disposed in a distal and radially outward direction, each of the deployment members being adapted to deploy at least one of the engagement members into the tissue proximate to the blood vessel such that the engagement members are secured to the tissue proximate to the blood vessel and disposed at a distance from each other in engaged contact with said tissue, without engaging a portion of the blood vessel adjacent the tissue;
a plurality of elongate flexible tension elements, each tension element being secured to at least one engagement member;
a retraction member coupled in operative arrangement with the tension elements and adapted to apply axial tension to the tension elements and reduce the distance between the engagement members to a radially retracted state to close the passage in the tissue proximate to the blood vessel; and
a locking member adapted to secure the tension elements relative to each other with the tension elements in the retracted state thereby creating a tissue lock, the locking member comprising a preloaded self-retracting coil with an interior passage which is disposed about the tension elements, which is sized to allow free movement of the tension elements with the coil in an expanded state and which has an interior surface that is adapted to clench the tension elements when in a retracted state.
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Abstract
The present disclosure relates to a vascular closure device adapted for use in closing a puncture in a blood vessel after e.g. a percutaneous interventional procedure. The disclosure also relates to a method for vascular closure using such a vascular closure device.
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Citations
18 Claims
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1. A vascular closure device for treating a passage in a blood vessel wall by closing a passage through tissue proximate to the blood vessel wall, the vascular closure device comprising:
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an elongated housing having a proximal end, a distal end, and a distal section; a plurality of engagement members which are each adapted to be secured to tissue upon deployment into tissue; a plurality of deployment members adapted to extend from the distal section of the elongated housing in a distal and radially outward direction with distal most ends of the deployment members disposed in a distal and radially outward direction, each of the deployment members being adapted to deploy at least one of the engagement members into the tissue proximate to the blood vessel such that the engagement members are secured to the tissue proximate to the blood vessel and disposed at a distance from each other in engaged contact with said tissue, without engaging a portion of the blood vessel adjacent the tissue; a plurality of elongate flexible tension elements, each tension element being secured to at least one engagement member; a retraction member coupled in operative arrangement with the tension elements and adapted to apply axial tension to the tension elements and reduce the distance between the engagement members to a radially retracted state to close the passage in the tissue proximate to the blood vessel; and a locking member adapted to secure the tension elements relative to each other with the tension elements in the retracted state thereby creating a tissue lock, the locking member comprising a preloaded self-retracting coil with an interior passage which is disposed about the tension elements, which is sized to allow free movement of the tension elements with the coil in an expanded state and which has an interior surface that is adapted to clench the tension elements when in a retracted state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A vascular closure device for closing a passage through tissue proximate to a blood vessel, the vascular closure device comprising:
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an elongated housing having a proximal end and a distal end, the distal end adapted to be proximate the tissue; a first and a second engagement member releasably arranged with the elongated housing; a plurality of deployment members adapted to extend from the distal section of the elongated housing in a distal and radially outward direction with distal most ends of the deployment members disposed in a distal and radially outward direction, each of the deployment members being adapted to deploy at least one of the engagement members into the tissue proximate to the blood vessel such that the engagement members are secured to the tissue proximate to the blood vessel and disposed at a distance from each other in engaged contact with said tissue, without engaging a portion of the blood vessel adjacent the tissue; a retraction member arranged with the elongated housing and adapted to reduce the distance between the first and the second engagement member to close said passage through tissue proximate to the blood vessel; and a locking member adapted to secure tension elements relative to each other thereby creating a tissue lock with the tension elements being secured to the respective first and second engagement members and the locking member comprising a preloaded self-retracting coil with an interior passage which is disposed about the tension elements, which is sized to allow free movement of the tension elements with the coil in an expanded state and which has an interior surface that is adapted to clench the tension elements when in a retracted state. - View Dependent Claims (16, 17, 18)
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Specification