Vascular access closure system
First Claim
1. A sealing device for percutaneously sealing a puncture in a vessel wall, the puncture being at a distal end of a tissue tract that passes through intervening tissues between the puncture in the vessel wall and a corresponding puncture through a skin, the sealing device being insertable in the tissue tract via an introducer, the sealing device comprising:
- a delivery tube;
an elongate flexible stem loadable into the delivery tube and having a resilient transverse expansion portion that expands in an orientation generally transverse to a longitudinal axis of the stem when deployed distally beyond the delivery tube so as to create a frictional interface with an interior surface of the tissue tract that resists displacement of the flexible stem from a desired location in the tissue tract; and
a flange at a distal end of the flexible stem adapted to operably abut an interior of the puncture in the vessel wall to seal the puncture when the flexible stem is deployed.
5 Assignments
0 Petitions
Accused Products
Abstract
A sealing device for sealing punctures in blood vessel walls including a flange connected to a flexible stem having an expansion portion in it. The flexible stem is adapted to be accommodated inside a delivery tube. The delivery tube further includes a hand-hold for ease of handling. The sealing device may further include a loader and a cutter. The flange and flexible stem are preferably constructed of a biodegradable material that has a tensile strength, rigidity, memory and other physical qualities similar to medical grade silicone. The resilient transverse expansion portion expands when deployed beyond the delivery tube in the tissue tract to create a frictional interface with the interior surface of the tissue tract to resist displacement of the flexible stem from a desired location in the tissue tract. The flexible stem also includes a flange at the distal end of the flexible stem to seal the puncture when the flexible stem is deployed.
58 Citations
55 Claims
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1. A sealing device for percutaneously sealing a puncture in a vessel wall, the puncture being at a distal end of a tissue tract that passes through intervening tissues between the puncture in the vessel wall and a corresponding puncture through a skin, the sealing device being insertable in the tissue tract via an introducer, the sealing device comprising:
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a delivery tube;
an elongate flexible stem loadable into the delivery tube and having a resilient transverse expansion portion that expands in an orientation generally transverse to a longitudinal axis of the stem when deployed distally beyond the delivery tube so as to create a frictional interface with an interior surface of the tissue tract that resists displacement of the flexible stem from a desired location in the tissue tract; and
a flange at a distal end of the flexible stem adapted to operably abut an interior of the puncture in the vessel wall to seal the puncture when the flexible stem is deployed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for percutaneously sealing a puncture in a vessel wall, the puncture being at a distal end of a tissue tract that passes through intervening tissues between the puncture in the vessel wall and a corresponding puncture through a skin, the system comprising:
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a sealing device being insertable in the tissue tract, the sealing device comprising;
a delivery tube;
an elongate flexible stem having a resilient transverse expansion portion that expands in an orientation generally transverse to a longitudinal axis of the stem when deployed distally beyond the delivery tube so as to create a frictional interface with an interior surface of the tissue tract that resists displacement of the flexible stem from a desired location in the tissue tract; and
a flange at a distal end of the flexible stem adapted to operably abut an interior of the puncture in the vessel wall to seal the puncture; and
a cutter for severing the flexible stem at a desired location. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A sealing device for percutaneously sealing a puncture in a vessel wall, the puncture being at the termination of a tissue tract that passes through intervening tissues between the vessel wall puncture and a corresponding puncture through the skin, the sealing device being insertable through an introducer, the sealing device comprising:
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an elongate flexible stem pushable through the introducer; and
a flexible flange operably attached to a distal end of the flexible stem, the flange having a greatest dimension substantially larger than an outer dimension of the introducer, the flexible flange being asymmetrically foldable within the introducer when pushed through the introducer and being resiliently biased to return to a generally unfolded state upon deployment distally of the introducer. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A sealing device for percutaneously sealing a puncture in a blood vessel wall, the puncture being at the termination of a tissue tract that passes through intervening tissues between the vessel wall puncture and a corresponding puncture through the skin, the sealing device being insertable through an introducer, the sealing device comprising:
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a semirigid outer delivery tube;
a flexible stem coaxially located within the delivery tube, the flexible stem having a resilient transverse expansion portion tensionable axially and compressible laterally into a generally linear state and to resiliently contract axially and resiliently expand laterally upon deployment distally beyond the delivery tube and to resiliently frictionally interface with an interior surface of the tissue tract so as to resist the displacement of the flexible stem from a desired location in the tissue tract; and
a flange at a distal end of the flexible stem that operably abuts an interior of the puncture in the vessel wall to seal the puncture when the flexible stem is deployed distally beyond the introducer. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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32. A sealing device for percutaneously sealing a puncture in a blood vessel wall, the puncture being at the termination of a tissue tract that passes through intervening tissues between the vessel wall puncture and a corresponding puncture through the skin, the sealing device being insertable through an introducer, the sealing device comprising:
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a semirigid delivery tube;
a flexible stem being resiliently biased toward an undulating configuration, the undulating configuration being fully achieved when the stem is in an unrestrained state and the tendency of the stem toward an undulating configuration upon deployment beyond the introducer tending to resiliently grip the interior of the tissue tract so as to resist the displacement of the stem from a desired location in the tissue tract; and
a flange at a distal end of the flexible stem that operably abuts an interior of the puncture in the vessel wall to seal the puncture when the flexible stem is deployed distally beyond the introducer. - View Dependent Claims (33, 34, 35, 36, 37, 38)
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39. A sealing device for percutaneously sealing a puncture in a blood vessel wall, the puncture being at the termination of a tissue tract that passes through intervening tissues between the vessel wall puncture and a corresponding puncture through the skin, the sealing device being insertable through an introducer, the sealing device comprising:
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means for delivering the sealing device through the introducer;
flexible means for resiliently, transversely expansibly gripping the interior of the tissue tract so as to resist the displacement from a desired location in the tissue tract, the flexible, resilient gripping means being passable through the delivery means; and
means for occluding the vessel wall puncture. - View Dependent Claims (40, 41, 42, 43, 44, 45)
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46. A method for percutaneously sealing a puncture in a blood vessel wall, the puncture being at the termination of a tissue tract that passes through intervening tissues between the vessel wall puncture and a corresponding puncture through the skin, the method comprising the steps of:
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inserting a flexible stem into a delivery tube;
in the process of inserting the flexible stem into the delivery tube, tensioning the flexible stem so that the flexible stem alters from an transversely expanded state to a generally linear state within the delivery tube;
inserting the delivery tube including the joined flexible stem into an introducer already placed in the tissue tract, the flexible stem having a flange at a distal end thereof;
pushing the delivery tube through the introducer until the distal end of the flexible stem is within a lumen of the blood vessel;
withdrawing the delivery tube;
from the introducer;
withdrawing the flexible stem until the flange is flush with the blood vessel wall; and
withdrawing the introducer from the tissue tract until the flange is flush with the blood vessel wall; and
maintaining tension on the flexible stem. - View Dependent Claims (47, 48, 49, 50, 51)
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52. A sealing device for percutaneously sealing a puncture in a blood vessel wall, the puncture being at the termination of a tissue tract that passes through intervening tissues between the vessel wall puncture and a corresponding puncture through the skin, the sealing device comprising:
a sealing device being insertable through an introducer, the sealing device comprising;
means for delivering the sealing device through the introducer;
flexible means for resiliently, transversely, expansibly, gripping the interior of the tissue tract so as to resist the displacement from a desired location in the tissue tract, the flexible, resilient gripping means being pushable through the introducer; and
means for occluding the vessel wall puncture. - View Dependent Claims (53, 54, 55)
Specification