Prosthesis having a sleeve valve

• US 6,746,489 B2
• Filed: 06/07/2001
• Issued: 06/08/2004
• Est. Priority Date: 08/31/1998
• Status: Expired due to Term

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Wilson-Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Moore, Scott T., Dua, Kulwinder S., Karpiel, John A.
• Primary Examiner(s): McDermott, Corrine
• Assistant Examiner(s): Matthews, William H.
• Application Number:
  US09/876,520
• Publication Number:
  US 20020032487A1
• Time in Patent Office: 1,097 Days
• Field of Search: 623/1.24, 623/1.25, 623/11.11, 623/23.64, 623/23.65, 623/23.66, 623/23.67, 623/23.68, 623/23.69, 623/23.7, 604/8, 604/9, 606/108, 606/191, 606/194
• US Class Current: 623/23.68
• CPC Class Codes: A61F 2/04 Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts A61F2/18, A61F2/20 take precedence; devices, other than stent-grafts, providing patency to, or preventing collapsing of, tubular structures of the body other than stent-grafts, e.g. stents A61F2/82; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95
• CPC Class Codes: A61F 2/86 Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2002/044 Oesophagi or esophagi or gullets

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.

Claims

1. A prosthesis for placement in a bile duct, a pancreatic duct, or a urethra of 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 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;

wherein the tubular drainage stent comprises a non-expanding stent.

2. A prosthesis for placement in a bile duct, a pancreatic duct, or a urethra of 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 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 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;

wherein the tubular drainage stent comprises a closed tubular conduit.

3. A prosthesis for placement in a bile duct, a pancreatic duct, or a urethra of 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 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 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;

wherein the tubular drainage stent comprises a closed tubular conduit.

4. 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;

wherein the tubular drainage stent comprises a non-expandable tubular drainage stent.

5. 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,

wherein the passage comprises an elongate, closed tubular conduit.