CA2701666A1 - Magnetic stent removal - Google Patents

Magnetic stent removal Download PDF

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Publication number
CA2701666A1
CA2701666A1 CA2701666A CA2701666A CA2701666A1 CA 2701666 A1 CA2701666 A1 CA 2701666A1 CA 2701666 A CA2701666 A CA 2701666A CA 2701666 A CA2701666 A CA 2701666A CA 2701666 A1 CA2701666 A1 CA 2701666A1
Authority
CA
Canada
Prior art keywords
retrieval device
stent
magnetic member
tail
magnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2701666A
Other languages
French (fr)
Other versions
CA2701666C (en
Inventor
Richard W. Ducharme
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cook Medical Technologies LLC
Original Assignee
Wilson-Cook Medical Inc.
Richard W. Ducharme
Cook Medical Technologies Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wilson-Cook Medical Inc., Richard W. Ducharme, Cook Medical Technologies Llc filed Critical Wilson-Cook Medical Inc.
Publication of CA2701666A1 publication Critical patent/CA2701666A1/en
Application granted granted Critical
Publication of CA2701666C publication Critical patent/CA2701666C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00876—Material properties magnetic
    • 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
    • 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
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2002/9528—Instruments specially adapted for placement or removal of stents or stent-grafts for retrieval of stents
    • 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
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/009—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof magnetic

Abstract

A medical device and method for its use in the digestive system of a mammalian patient is provided. The medical device includes a stent (22) and a retrieval device (24). The stent has a magnetic element (30) connected to an end of the stent.
The retrieval device includes a magnetic member (34), and the retrieval device is sized to be ingested by the patient. The magnetic member is capable of being magnetically coupled to the magnetic element of the stent for removal of the stent through the natural forces of the digestive system.

Claims (17)

1. A retrieval device for retrieving a stent placed with a body lumen of the digestive system of a mammalian patient, the stent having a magnetic element connected to an end of the stent, the retrieval device comprising:
a magnetic member having a size suitable for being ingested by the mammalian patient;
the magnetic member capable of being magnetically coupled to the magnetic element of the stent and sized for removal of the stent from the body lumen through natural forces of the digestive system; and a tail connected to the magnetic member, the tail constructed of a flexible material, the magnetic member and tail sized to be wholly ingested together by the mammalian patient.
2. The retrieval device of claim 1, the stent being disposed within the pancreatic or biliary duct of the mammalian patient; and wherein the magnetic member and tail are configured to be advanced downstream by peristaltic contractions of the duodenum.
3. The retrieval device of claim 2, wherein the force of attraction between the magnetic element and magnetic member is between about 4 Newtons to about 10 Newtons.
4. The retrieval device of claim 1, further comprising the retrieval device having a length less than 7.62 cm.
5. The retrieval device of claim 1, wherein the tail is elongated and has a length greater than a length of the magnetic member.
6. The retrieval device of claim 1, wherein the tail is tubular.
7. The retrieval device of claim 6, wherein the tubular tail increases in diameter as the tubular tail projects away from the magnetic member.
8. The retrieval device of claim 1, wherein the tail is formed by a plurality of strips.
9. The retrieval device of claim 1, wherein the tail is a sheet connected to the magnetic member by one or more tethers.
10. The retrieval device of claim 9, wherein the sheet and tethers are structured to form a parachute.
11. A medical system employing the retrieval device of claim 1, the medical system further comprising:
a stent having a magnetic element connected to an end of the stent; and a retrieval device having a magnetic member, the retrieval device sized to be ingested in its entirety by the mammalian patient;
at least one of the magnetic element and magnetic member having a magnet, the magnetic member capable of being magnetically coupled to the magnetic element of the stent for removal of the stent.
12. The medical system of claim 11, wherein the stent is disposed within a body lumen of the digestive system of the mammalian patient, and wherein coupling of the magnetic element and the magnetic member permits removal of the stent from the body lumen through natural forces of the digestive system acting on the retrieval device.
13. The retrieval device of claim 1, wherein the magnetic member has a coating encapsulating the magnetic member, and wherein the tail is unitarily and integrally formed with the coating.
14. The retrieval device of claim 1, wherein the tail is elongated and has a length greater than a length of the magnetic member.
15. The retrieval device of claim 1, wherein the plurality of strips have free ends projecting away from the magnetic member.
16. Use of a retrieval device according to any one of claims 1 to 10 for retrieving a disposed stent.
17. Use of a retrieval device according to any one of claims 13 to 15 for retrieving a disposed stent.
CA2701666A 2007-10-03 2008-08-13 Magnetic stent removal Active CA2701666C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/866,824 2007-10-03
US11/866,824 US8066715B2 (en) 2007-10-03 2007-10-03 Magnetic stent removal
PCT/US2008/073081 WO2009045644A1 (en) 2007-10-03 2008-08-13 Magnetic stent removal

Publications (2)

Publication Number Publication Date
CA2701666A1 true CA2701666A1 (en) 2009-04-09
CA2701666C CA2701666C (en) 2013-01-15

Family

ID=39823853

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2701666A Active CA2701666C (en) 2007-10-03 2008-08-13 Magnetic stent removal

Country Status (6)

Country Link
US (1) US8066715B2 (en)
EP (1) EP2217182B1 (en)
JP (1) JP5175936B2 (en)
AU (1) AU2008307388B2 (en)
CA (1) CA2701666C (en)
WO (1) WO2009045644A1 (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8425549B2 (en) 2002-07-23 2013-04-23 Reverse Medical Corporation Systems and methods for removing obstructive matter from body lumens and treating vascular defects
US9220522B2 (en) 2007-10-17 2015-12-29 Covidien Lp Embolus removal systems with baskets
US8926680B2 (en) 2007-11-12 2015-01-06 Covidien Lp Aneurysm neck bridging processes with revascularization systems methods and products thereby
US9198687B2 (en) 2007-10-17 2015-12-01 Covidien Lp Acute stroke revascularization/recanalization systems processes and products thereby
US8585713B2 (en) 2007-10-17 2013-11-19 Covidien Lp Expandable tip assembly for thrombus management
US8088140B2 (en) 2008-05-19 2012-01-03 Mindframe, Inc. Blood flow restorative and embolus removal methods
US20100022951A1 (en) * 2008-05-19 2010-01-28 Luce, Forward, Hamilton 7 Scripps, Llp Detachable hub/luer device and processes
US8066757B2 (en) 2007-10-17 2011-11-29 Mindframe, Inc. Blood flow restoration and thrombus management methods
US11337714B2 (en) 2007-10-17 2022-05-24 Covidien Lp Restoring blood flow and clot removal during acute ischemic stroke
US10123803B2 (en) 2007-10-17 2018-11-13 Covidien Lp Methods of managing neurovascular obstructions
AU2008329676B2 (en) 2007-11-26 2015-03-05 Attractive Surgical, Llc Magnaretractor system and method
KR101819554B1 (en) 2008-02-22 2018-01-17 마이크로 테라퓨틱스 인코포레이티드 Methods and apparatus for flow restoration
CN101977650A (en) 2008-04-11 2011-02-16 曼德弗雷姆公司 Monorail neuro-microcatheter for delivery of medical devices to treat stroke, processes and products thereby
CL2009000279A1 (en) 2009-02-06 2009-08-14 Biotech Innovations Ltda Remote guidance and traction system for mini-invasive surgery, comprising: at least one surgical and removable endopinza with hooking means and a portion of ferro-magnaetic material, a cylindrical introduction guide, a detachment mechanism, and at least a means of remote traction with magnet.
AU2010232612A1 (en) * 2009-04-02 2011-09-08 Cook Medical Technologies Llc System and method for maintaining patency of a stent using a magnet
EP2451409A2 (en) * 2009-07-08 2012-05-16 Beacon Endoscopic Corporation Magnetic stent and method of use
US20110087252A1 (en) 2009-10-08 2011-04-14 Wilson-Cook Medical Inc. Biliary decompression and anastomosis stent
US8632582B2 (en) 2010-03-25 2014-01-21 Mayo Foundation For Medical Education And Research Removable and/or retrievable stents and kits
US20120109148A1 (en) * 2010-10-29 2012-05-03 Medtronic, Inc. System and method for retrieval of an implantable medical device
US9504820B2 (en) * 2010-10-29 2016-11-29 Medtronic, Inc. System and method for implantation of an implantable medical device
US8764769B1 (en) 2013-03-12 2014-07-01 Levita Magnetics International Corp. Grasper with magnetically-controlled positioning
US10010370B2 (en) 2013-03-14 2018-07-03 Levita Magnetics International Corp. Magnetic control assemblies and systems therefor
EP3096673A4 (en) 2014-01-21 2017-10-25 Levita Magnetics International Corp. Laparoscopic graspers and systems therefor
EP3282954B1 (en) 2015-04-13 2021-07-28 Levita Magnetics International Corp. Grasper with magnetically-controlled positioning
WO2016168377A1 (en) 2015-04-13 2016-10-20 Levita Magnetics International Corp. Retractor systems, devices, and methods for use
US9943314B2 (en) * 2015-04-14 2018-04-17 Teleflex Innovations S.À.R.L. Magnetically-driven delivery assembly and method
US11020137B2 (en) 2017-03-20 2021-06-01 Levita Magnetics International Corp. Directable traction systems and methods
KR101806081B1 (en) 2017-07-25 2017-12-07 한양대학교 산학협력단 Stent delivery apparatus
CN108403268B (en) * 2018-03-22 2024-02-20 镇江市第三人民医院 Magnetic collapsible tracheal stent

Family Cites Families (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005458A (en) * 1958-12-29 1961-10-24 Fargo Corp Therapeutic magnet
GB1035205A (en) * 1962-11-30 1966-07-06 Yeda Res & Dev Improvements in the remote controlled propulsion of a body
US3683890A (en) * 1970-10-02 1972-08-15 Charles B Beal Carrier system for delivery of an end of an elongated member to the upper gastrointestinal tract
US3908646A (en) 1972-07-20 1975-09-30 Amir H Ansari Concentric loop intrauterine device
JPS5310216B2 (en) * 1972-12-18 1978-04-12
US4315509A (en) * 1977-01-10 1982-02-16 Smit Julie A Insertion and removal catheters and intestinal tubes for restricting absorption
US4657020A (en) * 1985-07-10 1987-04-14 Jayco Pharmaceuticals Method of using a foreign object protector hood
US4790809A (en) * 1985-08-29 1988-12-13 Medical Engineering Corporation Ureteral stent
US4865030A (en) * 1987-01-21 1989-09-12 American Medical Systems, Inc. Apparatus for removal of objects from body passages
US4925446A (en) * 1988-07-06 1990-05-15 Transpharm Group Inc. Removable inflatable intragastrointestinal device for delivering beneficial agents
US4957479A (en) * 1988-10-17 1990-09-18 Vance Products Incorporated Indwelling ureteral stent placement apparatus
JPH02134408A (en) * 1988-11-15 1990-05-23 Taamo:Kk Magnetic attracter
JP2500701Y2 (en) * 1990-02-07 1996-06-12 日立金属株式会社 Foreign body attraction magnet
US4992768A (en) * 1990-05-15 1991-02-12 Power Magnets, U.S.A. Cow magnet
DE69108465T2 (en) * 1990-07-09 1995-08-10 Wilson Cook Medical Inc Device for pulling out recanalization pipes.
US5176626A (en) * 1992-01-15 1993-01-05 Wilson-Cook Medical, Inc. Indwelling stent
US5353807A (en) * 1992-12-07 1994-10-11 Demarco Thomas J Magnetically guidable intubation device
EP0666065A1 (en) * 1994-02-02 1995-08-09 Katsushi Mori Stent for biliary, urinary or vascular system
US5514176A (en) * 1995-01-20 1996-05-07 Vance Products Inc. Pull apart coil stent
US5647843A (en) * 1996-05-24 1997-07-15 Vance Products Incorporated Anti-reflux ureteral stent
BR9702352A (en) * 1996-07-09 1999-12-28 Europ Economic Community Rumination cylinders for electronic identification of a ruminant
US5663701A (en) * 1996-08-15 1997-09-02 Kaura; Kamaljit S. Stomach debris collecting magnet
US5800517A (en) * 1996-08-19 1998-09-01 Scimed Life Systems, Inc. Stent delivery system with storage sleeve
US5906618A (en) * 1997-03-20 1999-05-25 Vanderbilt University Microcatheter with auxiliary parachute guide structure
US5876450A (en) * 1997-05-09 1999-03-02 Johlin, Jr.; Frederick C. Stent for draining the pancreatic and biliary ducts and instrumentation for the placement thereof
US6258098B1 (en) * 1998-05-08 2001-07-10 William N. Taylor Stent placement and removal system
US6652569B1 (en) * 1998-05-08 2003-11-25 Biu Biomedical Innovations (Urology) Inc. Stent placement and removal
US7118600B2 (en) * 1998-08-31 2006-10-10 Wilson-Cook Medical, Inc. Prosthesis having a sleeve valve
US7011094B2 (en) * 2001-03-02 2006-03-14 Emphasys Medical, Inc. Bronchial flow control devices and methods of use
US7097665B2 (en) * 2003-01-16 2006-08-29 Synecor, Llc Positioning tools and methods for implanting medical devices
JP4643089B2 (en) * 2001-09-27 2011-03-02 オリンパス株式会社 Capsule medical device
US20030216622A1 (en) * 2002-04-25 2003-11-20 Gavriel Meron Device and method for orienting a device in vivo
US6676694B1 (en) * 2002-06-06 2004-01-13 Mitchell Weiss Method for installing a stent graft
US7289839B2 (en) * 2002-12-30 2007-10-30 Calypso Medical Technologies, Inc. Implantable marker with a leadless signal transmitter compatible for use in magnetic resonance devices
US7618435B2 (en) * 2003-03-04 2009-11-17 Nmt Medical, Inc. Magnetic attachment systems
ATE367132T1 (en) 2004-05-25 2007-08-15 Cook William Europ STENT AND STENT REMOVING DEVICE
US20050288555A1 (en) * 2004-06-28 2005-12-29 Binmoeller Kenneth E Methods and devices for illuminating, vievwing and monitoring a body cavity
US8220466B2 (en) * 2005-02-08 2012-07-17 Koninklijke Philips Electronics N.V. System and method for percutaneous palate remodeling
US7850708B2 (en) * 2005-06-20 2010-12-14 Cook Incorporated Embolic protection device having a reticulated body with staggered struts
US20070016131A1 (en) * 2005-07-12 2007-01-18 Munger Gareth T Flexible magnets for navigable medical devices
WO2007035798A2 (en) * 2005-09-19 2007-03-29 Calypso Medical Technologies, Inc. Apparatus and methods for implanting objects, such as bronchoscopically implanting markers in the lung of patients
US8932348B2 (en) * 2006-05-18 2015-01-13 Edwards Lifesciences Corporation Device and method for improving heart valve function
US7934506B2 (en) * 2006-06-21 2011-05-03 Koninklijke Philips Electronics N.V. System and method for temporary tongue suspension
US7819836B2 (en) * 2006-06-23 2010-10-26 Gi Dynamics, Inc. Resistive anti-obesity devices
US8109895B2 (en) * 2006-09-02 2012-02-07 Barosense, Inc. Intestinal sleeves and associated deployment systems and methods
US20080236500A1 (en) * 2007-02-20 2008-10-02 Hodges Terry E Apparatus, system, and method for animal monitor
CN104260726B (en) * 2007-04-13 2018-08-10 泰克尼恩研究和发展基金有限公司 Vibrating robotic crawler

Also Published As

Publication number Publication date
AU2008307388B2 (en) 2013-05-30
EP2217182B1 (en) 2016-03-16
WO2009045644A1 (en) 2009-04-09
AU2008307388A1 (en) 2009-04-09
CA2701666C (en) 2013-01-15
JP2010540170A (en) 2010-12-24
US20090093822A1 (en) 2009-04-09
JP5175936B2 (en) 2013-04-03
EP2217182A1 (en) 2010-08-18
US8066715B2 (en) 2011-11-29

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