Device, Kit And Method For Closure Of A Body Lumen Puncture
A medical device and method for closure of a puncture in a body lumen are disclosed. The device has an aggregate ( 10 ) of a support structure ( 20 ) and a substantially fluid tight patch member ( 30 ) attached thereto at an attachment unit ( 40 ). The aggregate has a first, temporary delivery shape, for delivery to an interior of said body lumen and to be subsequently subjected to a change of shape to a second shape, which is a tubular shape. When delivered in said body lumen, the patch member is arranged radially outside of said tubular support structure and arranged towards an inner tissue wall of the body lumen. The aggregate is the detached from a delivery device and said puncture is intraluminally closed in a leakage tight manner, advantageously supported by a physiological pressure of a body fluid in said body lumen. The device may biodegrade over time.
1 . A medical device for closing a puncture in a body lumen from the inside thereof, such as a vessel, in a patient, said device comprising
an elongate delivery unit having a distal end; and an aggregate of
a support structure having a first shape, which is a temporary delivery shape, for delivery to an interior of said body lumen through said puncture and to be subsequently controllably subjected to a change of shape to a second shape, which is a tubular shape, when delivered in said body lumen, and
a patch member attached to said support structure at an intermediate portion between two opposite ends thereof; wherein
said distal end of said elongate delivery unit is radially releasably attached to said aggregate at an attachment position intermediate between ends of said patch member and detachable therefrom upon deployment of said aggregate in said body lumen;
wherein said patch member is sized and shaped for arranging it towards an inner tissue wall of said body lumen at a site of said puncture of said body lumen and extending over a puncture opening, and
wherein said delivery unit extends in a direction radially from said aggregate through said opening, such that said puncture is controllably sealed off by said patch when drawing said delivery device in a direction out of said puncture and tightening said patch over said opening before said change of shape of said support structure.