Prosthesis having a sleeve valve
First Claim
1. A prosthesis for placement in a patient comprising:
- a tubular drainage stent having a passage extending longitudinally therethrough; and
a sleeve extending from an end of the tubular drainage stent and having a lumen extending longitudinally therethrough and communicating with the passage of the tubular drainage stent, the sleeve in response to a fluid applying a first pressure in a first direction passing the fluid through the lumen thereof, the sleeve collapsible to at least substantially close the lumen in response to a fluid applying a second pressure in a second direction.
0 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a pressure sensitive prosthesis (10) that includes a tubular member (11) having a passageway (12) extending therethrough and a sleeve (13) attached about one end of the tubular member. The sleeve functions as a one-way valve to permit fluid flowing through the sleeve lumen (15) in a first direction (17) and under a first pressure, while collapsing in response to fluid flowing in a second direction 18 where the pressure that exceeds that of the first direction or pressure. One aspect of the invention includes an esophageal anti-reflux expandable prosthesis wherein the sleeve is adapted to invert back through the tubular stent frame to permit belching or vomiting (fluid or materials under a third, significantly higher pressure). Another aspect of the invention includes a tubular drainage stent (60), such as a biliary or urethral stent in which the sleeve opens to permit passage of fluids, then collapses to prevent retrograde flow.
148 Citations
37 Claims
-
1. A prosthesis for placement in a patient comprising:
-
a tubular drainage stent having a passage extending longitudinally therethrough; and
a sleeve extending from an end of the tubular drainage stent and having a lumen extending longitudinally therethrough and communicating with the passage of the tubular drainage stent, the sleeve in response to a fluid applying a first pressure in a first direction passing the fluid through the lumen thereof, the sleeve collapsible to at least substantially close the lumen in response to a fluid applying a second pressure in a second direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20)
-
-
16. A prosthesis for placement in a patient comprising:
-
a tubular drainage stent sized and configured for placement in the biliary system, the tubular drainage stent having a passage extending longitudinally therethrough; and
a sleeve comprising a polymeric material, the sleeve extending from an end of the tubular drainage stent and having a lumen extending longitudinally therethrough and communicating with the passage of the tubular drainage stent, the sleeve in response to a fluid applying a first pressure in a first direction passing the fluid through the lumen thereof, the sleeve collapsible to at least substantially close the lumen in response to a fluid applying a second pressure in a second direction. - View Dependent Claims (17, 18, 19)
-
-
21. A prosthesis for placement in a patient comprising:
-
a tubular drainage stent sized and configured for placement in a bodily passageway, the tubular drainage stent having a passage extending longitudinally therethrough, and a sleeve comprising a thin, flexible polymeric material, the sleeve attached about the tubular drainage stent and having a lumen extending longitudinally therethrough and communicating with the passage of the tubular drainage stent, the sleeve in response to a fluid applying a first pressure in a first direction passing the fluid through the lumen thereof, the sleeve collapsible to at least substantially close the lumen in response to either a fluid applying a second pressure in a second direction or the absence of the fluid applying a first pressure in a first direction. - View Dependent Claims (22, 23, 24)
-
-
25. (Cancelled)
-
26. (Cancelled)
-
27. (Cancelled)
-
28. A prosthesis for placement in a patient comprising:
-
a tubular drainage stent having a passage extending longitudinally there through configured to pass only bodily matter;
a retention structure extending from an outer surface of the passage and comprising a flexible material configured to hold the tubular drainage stent within a vessel that conveys fluid without enlarging a diameter of the passage; and
a sleeve extending from an end of the tubular drainage stent and having a lumen extending longitudinally there through and communicating with the passage of the tubular drainage stent, the sleeve in response to a fluid applying a first pressure in a first direction passing the fluid through the lumen thereof, the sleeve collapsible to at least substantially close the lumen in response to a fluid applying a second pressure in a second direction. - View Dependent Claims (29, 30, 31)
-
-
32. (Cancelled)
-
33. (Cancelled)
-
34. A prosthesis for placement in a patient comprising:
-
a tubular drainage stent having a passage sized and configured for placement within a pancreatic duct;
a retention structure extending from an outer surface of the passage comprising a flexible material configured to expand without enlarging a diameter of the passage; and
a sleeve extending from an end of the tubular drainage stent and having a lumen extending longitudinally there through and communicating with the passage of the tubular drainage stent, the sleeve in response to a fluid applying a first pressure in a first direction passing the fluid through the lumen thereof, the sleeve collapsible to at least substantially close the lumen in response to a fluid applying a second pressure in a second direction.
-
-
35. A prosthesis for placement in a patient comprising:
-
a tubular drainage stent having a passage sized and configured for placement within a urethra;
a retention structure extending from an outer surface of the passage comprising a flexible material configured to expand without enlarging a diameter of the passage; and
a sleeve extending from an end of the tubular drainage stent and having a lumen extending longitudinally there through and communicating with the passage of the tubular drainage stent, the sleeve in response to a fluid applying a first pressure in a first direction passing the fluid through the lumen thereof, the sleeve collapsible to at least substantially close the lumen in response to a fluid applying a second pressure in a second direction.
-
-
36. A prosthesis for placement in a patient comprising:
-
a tubular drainage stent having a passage sized and configured for conveying a glandular secretion;
a retention structure extending from an outer surface of the passage comprising a flexible material configured to expand without enlarging a diameter of the passage; and
a sleeve extending from an end of the tubular drainage stent and having a lumen extending longitudinally there through and communicating with the passage of the tubular drainage stent, the sleeve in response to a fluid applying a first pressure in a first direction passing the fluid through the lumen thereof, the sleeve collapsible to at least substantially close the lumen in response to a fluid applying a second pressure in a second direction.
-
-
37. A prosthesis for placement in a patient comprising:
-
a non-expanding tubular drainage stent sized and configured for placement in a bodily passageway, the tubular drainage stent having a passage extending longitudinally there through, and a sleeve comprising a thin, flexible polymeric material, the sleeve attached about the tubular drainage stent and having a lumen extending longitudinally there through and communicating with the passage of the tubular drainage stent, the sleeve in response to a fluid applying a first pressure in a first direction passing the fluid through the lumen thereof, the sleeve collapsible to at least substantially close the lumen in response to either a fluid applying a second pressure in a second direction or the absence of the fluid applying a first pressure in a first direction.
-
Specification