Prosthesis having a sleeve valve
First Claim
1. A prosthesis for placement in a patient for controlling fluid flow through a passageway, the prosthesis comprising:
- a tubular stent having a proximal portion, a distal portion, and a passage extending longitudinally therethrough, the distal portion comprising a first opening through a sidewall thereof; and
a sleeve extending from the distal portion of the tubular stent, the sleeve having a lumen extending longitudinally therethrough and communicating with the passage of the tubular stent, the, sleeve permitting the passage of a fluid through the lumen in a first direction in response to the fluid applying a first pressure to the sleeve in the first direction, the sleeve being collapsible so as to substantially close the lumen in response to a fluid applying a second pressure to the sleeve in a second direction;
wherein at least a portion of a proximal portion of the sleeve extends over an outer surface of the stent and is affixed thereto at a sleeve connection position and the first opening is distal to the sleeve connection position; and
wherein the sleeve is normally closed in the absence of fluid applying the first pressure to the sleeve in the first direction.
3 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a pressure sensitive prosthesis that includes a tubular member having a passageway extending therethrough and a sleeve attached about one end of the tubular member. The sleeve functions as a one-way valve to permit fluid flowing through the sleeve lumen in a first, distal direction and under a first pressure, while collapsing in response to fluid flowing in a second direction when the pressure thereof exceeds that of the first direction or pressure. One aspect of the invention includes a first opening and a second opening configured for allowing fluid flow from the passage to the lumen in the first direction.
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Citations
19 Claims
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1. A prosthesis for placement in a patient for controlling fluid flow through a passageway, the prosthesis comprising:
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a tubular stent having a proximal portion, a distal portion, and a passage extending longitudinally therethrough, the distal portion comprising a first opening through a sidewall thereof; and a sleeve extending from the distal portion of the tubular stent, the sleeve having a lumen extending longitudinally therethrough and communicating with the passage of the tubular stent, the, sleeve permitting the passage of a fluid through the lumen in a first direction in response to the fluid applying a first pressure to the sleeve in the first direction, the sleeve being collapsible so as to substantially close the lumen in response to a fluid applying a second pressure to the sleeve in a second direction; wherein at least a portion of a proximal portion of the sleeve extends over an outer surface of the stent and is affixed thereto at a sleeve connection position and the first opening is distal to the sleeve connection position; and wherein the sleeve is normally closed in the absence of fluid applying the first pressure to the sleeve in the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A prosthesis for placement in a patient comprising:
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a tubular stent having a passage extending longitudinally therethrough, a side wall opening and a distal end opening connected to the passage; and a sleeve extending from a distal end portion of the tubular stent and having a lumen extending longitudinally therethrough and communicating with the passage of the tubular stent, the sleeve permitting the passage of a fluid through the lumen in a first direction in response to the fluid applying a first pressure to the sleeve in the first direction, the sleeve being collapsible so as to substantially close the lumen in response to a fluid applying a second pressure to the sleeve in a second direction; wherein the side wall opening comprises a first flow axis extending through the side wall opening and the distal end opening comprises a second flow axis extending through the second opening. - View Dependent Claims (17, 18)
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19. A prosthesis for placement in a patient for controlling fluid flow through a passageway, the prosthesis comprising:
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a tubular stent having a proximal end, a distal portion, and a passage extending longitudinally therethrough, the distal portion having a first opening and a second opening; and a sleeve extending from the distal portion of the tubular stent, the sleeve having a lumen extending longitudinally therethrough and communicating with the passage of the tubular stent, the sleeve permitting the passage of a fluid through the lumen in a first direction in response to the fluid applying a first pressure to the sleeve in the first direction, the sleeve being collapsible so as to substantially close the lumen in response to a fluid applying a second pressure to the sleeve in a second direction; wherein the passage comprises a closed tubular conduit between the proximal end and the first opening.
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Specification