Stent with flaps
First Claim
Patent Images
1. A medical device with a tubular wall made of webs, which delimit closed cells, and with a flexible membrane, which forms at least one flap, the flap comprising:
- a first end connected to at least one first web of a cell, anda free second end arranged opposite the first end in the longitudinal direction of the flap,wherein the flap is configured to move betweena closed position, in which the flap extends along the tubular wall and at least partially closes the cell, andan open position, in which the flap is radially deflected relative to the wall in order to free the cell in the manner of a valve;
wherein the flap is configured to move between the closed position and the open position in response to a pressure gradient between a space inside the tubular wall and a space outside the tubular wall and wherein in the closed position, the free second end of the flap protrudes into the cell, in particular is arranged inside the cell, or overlaps the cell.
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Abstract
A medicinal device with a tubular wall made of webs which delimit the cells, and a flexible membrane which forms at least one flap which has a first end connected to at least one first web of a cell, and a free second end which is disposed opposite the first end in the longitudinal direction of the flap. The flap, in the closed position, extends along the tubular wall and at least partially closes the cells, and can be moved to an open position in which the flap is radially deviated in relation to the wall in order to open the cells in a valve-like manner.
47 Citations
19 Claims
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1. A medical device with a tubular wall made of webs, which delimit closed cells, and with a flexible membrane, which forms at least one flap, the flap comprising:
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a first end connected to at least one first web of a cell, and a free second end arranged opposite the first end in the longitudinal direction of the flap, wherein the flap is configured to move between a closed position, in which the flap extends along the tubular wall and at least partially closes the cell, and an open position, in which the flap is radially deflected relative to the wall in order to free the cell in the manner of a valve; wherein the flap is configured to move between the closed position and the open position in response to a pressure gradient between a space inside the tubular wall and a space outside the tubular wall and wherein in the closed position, the free second end of the flap protrudes into the cell, in particular is arranged inside the cell, or overlaps the cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A medical device, in particular a stent, with a tubular wall, which forms an axial hollow channel and has webs that delimit closed cells, wherein at least two flexible membranes are provided, which are arranged spaced apart from each other in the longitudinal direction of the axial hollow channel and each form a multiple flap, each multiple flap including at least two flaps arranged radially opposite in relation to a longitudinal axis of the axial hollow space and comprising:
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a first end connected to at least one first web of a cell, and a free second end arranged opposite the first end in the longitudinal direction of the flap, wherein the multiple flap is configured to move between an open position, in which the at least two flaps extend along the tubular wall, and a closed position, in which the at least two flaps are radially deflected relative to the wall and protrude into the axial hollow channel in order to close the axial hollow channel in the manner of a valve. - View Dependent Claims (19)
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Specification