WO1995020986A1 - Winged biliary stent - Google Patents
Winged biliary stent Download PDFInfo
- Publication number
- WO1995020986A1 WO1995020986A1 PCT/US1995/000970 US9500970W WO9520986A1 WO 1995020986 A1 WO1995020986 A1 WO 1995020986A1 US 9500970 W US9500970 W US 9500970W WO 9520986 A1 WO9520986 A1 WO 9520986A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stent
- main body
- body member
- wing
- wing elements
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/94—Stents retaining their form, i.e. not being deformable, after placement in the predetermined place
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2002/041—Bile ducts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/005—Rosette-shaped, e.g. star-shaped
Definitions
- the present invention relates to a stent that can be used to maintain flow in ducts in the body and, more particularly, to a stent for biliary drainage in patients whose biliary channels are obstructed for example due to cancer or benign disease.
- Metal stents overcome this problem by providing a greater initial lumen but also tend to clog, in their case with tumor ingrowth. Also, metal stents are extremely expensive, about 20 times more expensive than plastic stents. Even further, the metal stents are technically more difficult to insert and once in place, can not be removed.
- the present inventors have overcome the foregoing problems and have invented a stent that uses flow along surfaces and not flow within a center lumen to maintain fluid flow in biliary ducts or any other duct in a body.
- a stent according to the proposed invention does not require lumenal flow through an obstructed center lumen, as in prior art devices. Instead, the invention relies on flow along a plurality of surfaces.
- a stent comprising an elongated main body or core member having a guide wire or wire stylet and a plurality of wing elements extending outwardly from the core member.
- the wing elements may be uniformly distributed about the circumference of the core member.
- Each wing has a length at least about as great as a length of the core member and a width that is preferably substantially greater than a cross-sectional dimension of the core member. If a guideline or wire stylet is used to place the stent, the core member may have a small lumen defined centrally for placement of the guideline.
- each wing has a plurality of grooves defined on each surface thereof for laminar fluid flow therealong.
- the core itself may be helically twisted.
- FIGURE 1 is an enlarged schematic, partial perspective view of a stent provided in accordance with the invention
- FIGURE 2 is a view similar to FIGURE 1, but of an alternative stent configuration in accordance with the invention.
- a stent 10 is provided that includes an elongated core or main body 12 and a plurality of wings or fins 14 which extend generally radially from the core 12.
- eight uniformly distributed fins 14 are provided. It is to be appreciated, however, that fewer or more fins may be found to be advantageous, depending upon the body passage or duct into which the stent 10 is adapted to be placed and the disposition of the fins 14 on the core 12.
- the wings or fins 14 each extend substantially continuously along the entire length of the core or main body 12.
- each fin or wing 14 is parallel to and extends longitudinally of the core 12. It is to be appreciated, however, that the invention is not necessarily limited to the illustrated configuration. The only requirement is that there are a plurality of surfaces that encourage flow along those surfaces.
- each of the wings 14 is grooved or corrugated on each side and/or the wings 14 are undulated, to define numerous small grooves 16 on each side for providing a capillary flow effect along the length thereof.
- the core 12' of the stent 10 ' may itself be twisted in a helical fashion or the wings 14' otherwise formed to describe a helix, as illustrated in FIGURE 2.
- the grooves 16 provide more surface area, and, the greater the surface area the more fluid tension pulling fluid along. Thus, grooves 16 along the winged surface enhance flow by providing capillary like flow. Thus, by eliminating a large central lumen for flow, the turbulence in flow that inevitably results in biofilm formation has also been avoided.
- the foregoing was a major problem with conventional plastic stents.
- the stent core 12 and wings 14 are preferably integrally formed from a plastic material such as polyethylene coated with a hydrophilic substance such as Hydromer so as to further reduce biofilm build-up.
- Tumor ingrowth is not expected to impair the function of the herein disclosed stent because the unique configuration of the stent will require that, to fully block flow, the tumor must physically grow into each of the channels 16, in each of the wings 14. Such ingrowth is extremely unlikely to occur during the expected lifetime of the patient.
- Other substances may also be incorporated into the surface coating the stent such as antibiotics (to inhibit bacterial growth) , tumoricidal drugs or agents or other therapeutic substance.
- the stent of the invention can be inserted endoscopically, percutaneously or surgically.
- a guide wire (not shown) is first threaded through the obstructing lesion and beyond. Thereafter, the stent is threaded over the guide wire through stylet lumen 18. The stent is then pushed through the obstructing lesion with a pusher tube (not shown) which is placed in surrounding relation to the guide wire as well, in the usual fashion. The pusher tube and guide wire are then removed. While the invention as been disclosed in particular with reference to bile duct obstruction, it is to be appreciated that the stent of the invention may useful in the event of pancreatic lesions or indeed a variety of ductal obstructions in other sites of the body such as in the urethra, fallopian tubes or other body passages.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95910881A EP0743864B1 (en) | 1994-02-02 | 1995-01-31 | Winged biliary stent |
DE69533029T DE69533029T2 (en) | 1994-02-02 | 1995-01-31 | STENT WITH WINGS FOR THE GALLENGANG |
CA002182588A CA2182588C (en) | 1994-02-02 | 1995-01-31 | Winged biliary stent |
JP7520641A JPH09508541A (en) | 1994-02-02 | 1995-01-31 | Biliary stent with wings |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/190,465 US5486191A (en) | 1994-02-02 | 1994-02-02 | Winged biliary stent |
US08/190,465 | 1994-02-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995020986A1 true WO1995020986A1 (en) | 1995-08-10 |
Family
ID=22701456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1995/000970 WO1995020986A1 (en) | 1994-02-02 | 1995-01-31 | Winged biliary stent |
Country Status (6)
Country | Link |
---|---|
US (2) | US5486191A (en) |
EP (1) | EP0743864B1 (en) |
JP (1) | JPH09508541A (en) |
CA (1) | CA2182588C (en) |
DE (1) | DE69533029T2 (en) |
WO (1) | WO1995020986A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005077305A1 (en) * | 2004-02-06 | 2005-08-25 | Tayside Flow Technologies Ltd | A drug delivery device |
EP1254645B1 (en) * | 1998-12-29 | 2007-04-25 | Tayside Flow Technologies Limited | Intravascular stent |
WO2013004262A1 (en) * | 2011-07-01 | 2013-01-10 | Ethicon Endo-Surgery, Inc. | A catheter, particularly for directing biliopancreatic secretions |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
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US5843089A (en) * | 1990-12-28 | 1998-12-01 | Boston Scientific Corporation | Stent lining |
US6616675B1 (en) | 1996-02-02 | 2003-09-09 | Transvascular, Inc. | Methods and apparatus for connecting openings formed in adjacent blood vessels or other anatomical structures |
DE69638011D1 (en) | 1995-10-13 | 2009-10-08 | Medtronic Vascular Inc | NGRIFF |
US5964732A (en) * | 1997-02-07 | 1999-10-12 | Abbeymoor Medical, Inc. | Urethral apparatus with position indicator and methods of use thereof |
US5971967A (en) | 1997-08-19 | 1999-10-26 | Abbeymoor Medical, Inc. | Urethral device with anchoring system |
US6709465B2 (en) | 1999-03-18 | 2004-03-23 | Fossa Medical, Inc. | Radially expanding ureteral device |
FR2794360B1 (en) * | 1999-06-03 | 2001-08-24 | Bourhane Eddine Benelouezzane | BILIARY DERIVATION PROSTHESIS |
EP1214005A1 (en) | 1999-09-24 | 2002-06-19 | Cook Urological Inc. | Embryo transfer catheter |
AU2001229631A1 (en) | 2000-01-19 | 2001-07-31 | Johns Hopkins University | Method and apparatus for coating an endoprosthesis |
US6514284B1 (en) | 2000-04-20 | 2003-02-04 | Advanced Cardiovascular Systems, Inc. | Stent having inner flow channels |
US6475184B1 (en) * | 2000-06-14 | 2002-11-05 | Scimed Life Systems, Inc. | Catheter shaft |
US6506408B1 (en) * | 2000-07-13 | 2003-01-14 | Scimed Life Systems, Inc. | Implantable or insertable therapeutic agent delivery device |
US20030215564A1 (en) * | 2001-01-18 | 2003-11-20 | Heller Phillip F. | Method and apparatus for coating an endoprosthesis |
US6752829B2 (en) | 2001-01-30 | 2004-06-22 | Scimed Life Systems, Inc. | Stent with channel(s) for containing and delivering a biologically active material and method for manufacturing the same |
CA2458828A1 (en) * | 2001-09-24 | 2003-05-01 | James J. Barry | Optimized dosing for drug coated stents |
GB2384189A (en) * | 2001-11-21 | 2003-07-23 | Tayside Flow Technologies Ltd | Helix shaped insert for flow moification in a duct or stent |
US7338530B2 (en) | 2003-11-24 | 2008-03-04 | Checkmed Systems, Inc. | Stent |
US7637904B2 (en) * | 2003-12-19 | 2009-12-29 | Vance Products Incorporated | Catheter with snap on feature |
US8267917B2 (en) * | 2004-07-27 | 2012-09-18 | University Of Southern California | Percutaneously retrievable stent assembly with fluid draining capability |
US8021355B2 (en) | 2005-08-12 | 2011-09-20 | Board Of Regents The University Of Texas System | System, kit, and method of transgastric removal of visceral fat and other related methods |
US20070106338A1 (en) * | 2005-11-10 | 2007-05-10 | Electrocore, Inc. | Direct and Indirect Control of Muscle for the Treatment of Pathologies |
US20080051911A1 (en) * | 2006-08-23 | 2008-02-28 | Wilson-Cook Medical Inc. | Stent with antimicrobial drainage lumen surface |
AU2007349205B2 (en) * | 2006-10-16 | 2013-05-23 | Cook Medical Technologies Llc | Nonexpandable stent |
US7967770B2 (en) * | 2007-01-26 | 2011-06-28 | Cook Medical Technologies Llc | Implantable drainage device with planar dual curved portion |
US8241316B2 (en) * | 2008-04-25 | 2012-08-14 | Paul Oberle | Inflatable nasopharyngeal stent |
US20100256731A1 (en) * | 2009-04-02 | 2010-10-07 | Mangiardi Eric K | Stent |
US10245165B2 (en) * | 2009-04-02 | 2019-04-02 | Q3 Medical Devices Limited | Stent |
US8398705B2 (en) * | 2008-06-11 | 2013-03-19 | Eric Mangiardi | Stent |
US10117760B2 (en) * | 2009-04-02 | 2018-11-06 | Q3 Medical Devices Limited | Stent |
US11207199B2 (en) | 2008-06-11 | 2021-12-28 | Q3 Medical Devices Limited | Stent with anti-migration devices |
WO2010033592A1 (en) * | 2008-09-16 | 2010-03-25 | C.R. Bard, Inc. | Stent |
US20100100170A1 (en) * | 2008-10-22 | 2010-04-22 | Boston Scientific Scimed, Inc. | Shape memory tubular stent with grooves |
DE102008052666A1 (en) | 2008-10-22 | 2010-05-20 | GWP Gesellschaft für Werkstoffprüfung GmbH | Protrusion for catheter that is inserted into e.g. human vessel, has macroscopic structured cross-section at catheter, and outer end including upper surface formed as part of ring or ellipse |
US9463107B2 (en) | 2010-10-18 | 2016-10-11 | Apollo Endosurgery, Inc. | Variable size intragastric implant devices |
US8870966B2 (en) | 2010-10-18 | 2014-10-28 | Apollo Endosurgery, Inc. | Intragastric balloon for treating obesity |
WO2012054519A2 (en) | 2010-10-18 | 2012-04-26 | Allergan, Inc. | Reactive intragastric implant devices |
EP2629714B1 (en) | 2010-10-18 | 2015-12-30 | Apollo Endosurgery, Inc. | Intragastric implants with duodenal anchors |
ES2593753T3 (en) | 2010-10-19 | 2016-12-13 | Apollo Endosurgery, Inc. | Duodenal sleeve with anchor without perforation |
US9198790B2 (en) * | 2010-10-19 | 2015-12-01 | Apollo Endosurgery, Inc. | Upper stomach gastric implants |
US8864840B2 (en) | 2010-10-19 | 2014-10-21 | Apollo Endosurgery, Inc. | Intragastric implants with collapsible frames |
US9398969B2 (en) | 2010-10-19 | 2016-07-26 | Apollo Endosurgery, Inc. | Upper stomach gastric implants |
US9498365B2 (en) | 2010-10-19 | 2016-11-22 | Apollo Endosurgery, Inc. | Intragastric implants with multiple fluid chambers |
US8920447B2 (en) | 2010-10-19 | 2014-12-30 | Apollo Endosurgery, Inc. | Articulated gastric implant clip |
US20120289994A1 (en) * | 2011-05-12 | 2012-11-15 | Boston Scientific Scimed, Inc. | Occlusion Devices and Related Methods of Use |
CN102670337B (en) * | 2012-05-29 | 2015-03-04 | 朱晓义 | Siphunculus of human body and channel of human body |
CN109125893A (en) * | 2013-02-28 | 2019-01-04 | 波士顿科学国际有限公司 | The medical device used along biliary tract and/or ductus pancreaticus |
DE102013112437A1 (en) * | 2013-11-13 | 2015-05-13 | Universität Rostock | Biliary and pancreatic duct drainage |
KR101628711B1 (en) * | 2014-06-26 | 2016-06-09 | 주식회사 에스앤지바이오텍 | Stent With External Flow Path |
WO2018129455A1 (en) | 2017-01-09 | 2018-07-12 | Boston Scientific Scimed, Inc. | Guidewire with tactile feel |
US11382776B2 (en) | 2018-07-29 | 2022-07-12 | Bvw Holding Ag | Biliary stent |
KR102242357B1 (en) * | 2019-02-19 | 2021-04-20 | 서울대학교병원 | Stent for both biliary drainage and biopsy of biliary cancer using dual edge groove |
KR20210012834A (en) * | 2019-07-26 | 2021-02-03 | 주식회사 비씨엠 | Method for manufacturing plastic stent using plasma surface modification |
Citations (6)
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GB189127A (en) * | 1921-11-14 | 1923-05-03 | Manuel Herante Hantcher | Improvements in surgical drainage appliances |
US3821956A (en) * | 1973-08-14 | 1974-07-02 | D Gordhamer | Bovine teat dilator and medicament dispenser |
US4459318A (en) * | 1981-11-09 | 1984-07-10 | American Hospital Supply Corporation | Method for forming a self-lubricating fill tube |
US4677143A (en) * | 1984-10-01 | 1987-06-30 | Baxter Travenol Laboratories, Inc. | Antimicrobial compositions |
US4795439A (en) * | 1986-06-06 | 1989-01-03 | Edward Weck Incorporated | Spiral multi-lumen catheter |
SU1641356A1 (en) * | 1987-09-15 | 1991-04-15 | Куйбышевская Городская Больница N1 Им.Н.И.Пирогова | Drainage appliance |
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-
1994
- 1994-02-02 US US08/190,465 patent/US5486191A/en not_active Expired - Lifetime
-
1995
- 1995-01-31 WO PCT/US1995/000970 patent/WO1995020986A1/en active IP Right Grant
- 1995-01-31 EP EP95910881A patent/EP0743864B1/en not_active Expired - Lifetime
- 1995-01-31 JP JP7520641A patent/JPH09508541A/en active Pending
- 1995-01-31 CA CA002182588A patent/CA2182588C/en not_active Expired - Lifetime
- 1995-01-31 DE DE69533029T patent/DE69533029T2/en not_active Expired - Fee Related
- 1995-05-18 US US08/443,755 patent/US5776160A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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GB189127A (en) * | 1921-11-14 | 1923-05-03 | Manuel Herante Hantcher | Improvements in surgical drainage appliances |
US3821956A (en) * | 1973-08-14 | 1974-07-02 | D Gordhamer | Bovine teat dilator and medicament dispenser |
US4459318A (en) * | 1981-11-09 | 1984-07-10 | American Hospital Supply Corporation | Method for forming a self-lubricating fill tube |
US4677143A (en) * | 1984-10-01 | 1987-06-30 | Baxter Travenol Laboratories, Inc. | Antimicrobial compositions |
US4795439A (en) * | 1986-06-06 | 1989-01-03 | Edward Weck Incorporated | Spiral multi-lumen catheter |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7682673B2 (en) | 1998-12-28 | 2010-03-23 | Tayside Flow Technologies Limited | Blood-flow tubing |
US9737421B2 (en) | 1998-12-28 | 2017-08-22 | Vascular Flow Technologies Limited | Blood-flow tubing |
EP1254645B1 (en) * | 1998-12-29 | 2007-04-25 | Tayside Flow Technologies Limited | Intravascular stent |
US8110267B2 (en) | 1998-12-29 | 2012-02-07 | Tayside Flow Technologies Limited | Blood-flow tubing |
US10188532B2 (en) | 1998-12-29 | 2019-01-29 | Vascular Flow Technologies Limited | Blood-flow tubing |
WO2005077305A1 (en) * | 2004-02-06 | 2005-08-25 | Tayside Flow Technologies Ltd | A drug delivery device |
WO2013004262A1 (en) * | 2011-07-01 | 2013-01-10 | Ethicon Endo-Surgery, Inc. | A catheter, particularly for directing biliopancreatic secretions |
Also Published As
Publication number | Publication date |
---|---|
DE69533029T2 (en) | 2005-04-28 |
CA2182588A1 (en) | 1995-08-10 |
CA2182588C (en) | 2006-04-18 |
DE69533029D1 (en) | 2004-06-17 |
JPH09508541A (en) | 1997-09-02 |
EP0743864A1 (en) | 1996-11-27 |
EP0743864B1 (en) | 2004-05-12 |
US5776160A (en) | 1998-07-07 |
EP0743864A4 (en) | 1999-03-24 |
US5486191A (en) | 1996-01-23 |
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