WO2002041805A2 - System and method for accurately deploying a stent - Google Patents
System and method for accurately deploying a stent Download PDFInfo
- Publication number
- WO2002041805A2 WO2002041805A2 PCT/US2001/043939 US0143939W WO0241805A2 WO 2002041805 A2 WO2002041805 A2 WO 2002041805A2 US 0143939 W US0143939 W US 0143939W WO 0241805 A2 WO0241805 A2 WO 0241805A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- interventional
- distal
- elongated shaft
- interventional procedure
- procedure site
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 27
- 238000013152 interventional procedure Methods 0.000 claims abstract description 99
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 49
- 230000002411 adverse Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 11
- 208000037804 stenosis Diseases 0.000 description 11
- 230000036262 stenosis Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 230000003902 lesion Effects 0.000 description 7
- 210000001367 artery Anatomy 0.000 description 6
- 210000001715 carotid artery Anatomy 0.000 description 6
- 238000002399 angioplasty Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000001225 therapeutic effect Effects 0.000 description 3
- 210000005166 vasculature Anatomy 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 210000004351 coronary vessel Anatomy 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 208000037260 Atherosclerotic Plaque Diseases 0.000 description 1
- 229920001651 Cyanoacrylate Polymers 0.000 description 1
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical compound COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004830 Super Glue Substances 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004004 carotid artery internal Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007887 coronary angioplasty Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- FGBJXOREULPLGL-UHFFFAOYSA-N ethyl cyanoacrylate Chemical compound CCOC(=O)C(=C)C#N FGBJXOREULPLGL-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000013147 laser angioplasty Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 210000002254 renal artery Anatomy 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 208000037803 restenosis Diseases 0.000 description 1
- 210000003752 saphenous vein Anatomy 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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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
- 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
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
- A61F2002/9665—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod with additional retaining means
Definitions
- the present invention relates generally to a system which can be used when an interventional procedure is being performed in a stenosed or occluded region of a blood vessel to substantially retain the unexpanded axial dimension of an expandable interventional instrument upon expansion thereof.
- the system of the present invention is particularly useful when performing stenting procedures in critical vessels, such as the carotid arteries.
- a variety of non-surgical interventional procedures have been developed over the years for opening stenosed or occluded blood vessels in a patient caused by the build up of plaque or other substances on the walls of the blood vessel.
- Such procedures usually involve the percutaneous introduction of the interventional device into the lumen of the artery, usually through a catheter.
- One widely known and medically accepted procedure is balloon angioplasty in which an inflatable balloon is introduced within the stenosed region of the blood vessel to dilate the occluded vessel.
- the balloon catheter is initially inserted into the patient's arterial system and is advanced and manipulated into the area of stenosis in the artery.
- the balloon is inflated to compress the plaque and press the vessel wall radially outward to increase the diameter of the blood vessel.
- Atherectomy is yet another method of treating a stenosed blood vessel in which a cutting blade is rotated to shave the deposited plaque f om the arterial wall.
- a vacuum catheter is usually used to capture the shaved plaque or thrombus from the blood stream during this procedure.
- the stenosis can be treated by placing an expandable interventional instrument such as an expandable stent into the stenosed region to hold open and sometimes expand the segment of blood vessel or other arterial lumen.
- an expandable interventional instrument such as an expandable stent
- Stents are particularly useful in the treatment or repair of blood vessels after a stenosis has been compressed by percutaneous transluminal coronary angioplasty (PTCA), percutaneous transluminal angioplasty (PTA) or removal by atherectomy or other means.
- PTCA percutaneous transluminal coronary angioplasty
- PTA percutaneous transluminal angioplasty
- Stents are usually delivered in a compressed condition to the target site, and then are deployed at the target location into an expanded condition to support the vessel and help maintain it in an open position.
- Prior art stents typically fall into two general categories of construction.
- the first type of stent is expandable upon application of a controlled force, often through the inflation of an expandable member such as an expandable balloon in a dilatation catheter which, upon inflation of the balloon or other expansion means, expands the compressed stent to a larger diameter to be left in place within the artery at the target site.
- the second type of stent is a self-expanding stent formed from, for example, shape memory metals or super-elastic nickel-titanum (NiTi) alloys, which will automatically expand from a compressed state when the stent is advanced out of the distal end of the delivery catheter into the body lumen.
- NiTi super-elastic nickel-titanum
- Self-expanding stents are typically delivered to an interventional procedure site for deployment thereof mounted on a delivery system and constrained in the sheath, to prevent the elastic nature of the self-expanding stent from causing it to expand prematurely.
- the sheath Once in position at the interventional procedure site, the sheath is retracted, enabling the stent to expand and deploy.
- problems associated with the retraction of the sheath for enabling deployment of the self- expanding stent When the sheath is retracted during stent deployment, axial forces are generated in the stent when one end of the stent is fully open and the other end is still constrained. The stent is biased to slip out from under the sheath and finish deploying.
- the present invention provides a system and method for treating an entire affected area in a blood vessel during the performance of a therapeutic interventional procedure, such as a balloon angioplasty or stenting procedure, while preventing adverse effects to surrounding tissue.
- a therapeutic interventional procedure such as a balloon angioplasty or stenting procedure
- the present invention is particularly useful when performing an interventional procedure in vital arteries, such as the carotid arteries, including the main blood vessels leading to the brain or other vital organs.
- the present invention provides the physician with a higher degree of confidence that an entire lesion will be treated, and that healthy tissue will not be adversely affected by the stenting procedure.
- the present invention enables an interventional procedure to be performed in a blood vessel at the site of a lesion at an interventional procedure site, such that axial movement of a stent is prevented during retraction of a sheath extending thereabout, and the stent is accurately deployed at the interventional procedure site to treat the lesion.
- the system includes a catheter for positioning in a blood vessel at an interventional procedure site, an interventional device located at a distal end portion of the catheter for expanding and deploying in the blood vessel at the interventional procedure site, an extendable member adapted to be extendable about the interventional device and retractable relative thereto, and a movement preventing element for preventing axial movement of the interventional instrument during retraction of the extendable member.
- the system includes a catheter, including an elongated shaft having a distal end portion adapted to be positioned in a blood vessel at an interventional procedure site, and a support region proximate the distal end of the elongated shaft.
- An interventional instrument is adapted to move between a collapsed and expanded position in the blood vessel at the interventional procedure site, and to be supported on the support region of the elongated shaft.
- An extendable member is adapted to be extendable about the interventional instrument for delivery of the interventional instrument to the interventional procedure site, and to be retractable from extending about the interventional instrument for enabling the interventional instrument to expand at the interventional procedure site.
- a movement preventing element for preventing axial movement of the interventional instrument in the support region of the catheter elongated shaft, during retraction of the extendable member from extending about the interventional instrument, enables deployment of the interventional instrument.
- the system in another embodiment, includes a catheter, including an elongated shaft having a distal end portion adapted to be positioned in a blood vessel at an interventional procedure site, and a support region proximate the distal end of the elongated shaft.
- An interventional instrument is adapted to move between a collapsed and expanded position in the blood vessel at the interventional procedure site, and to be supported on the support region of the elongated shaft, which interventional instrument includes a distal portion and a proximal portion.
- a movement preventing element for preventing axial movement of the interventional instrument in the support region of the catheter elongated shaft, includes a distal element, adapted to be extendable about the distal portion of the interventional instrument, and a proximal element, adapted to be extendable about the proximal portion of the interventional instrument.
- the distal element and the proximal element are adapted to be extendable about the interventional instrument for delivery of the interventional instrument to the interventional procedure site, and to be retractable from extending about the interventional instrument for enabling the interventional instrument to expand at the interventional procedure site.
- the movement preventing element is further adapted to prevent axial movement of the interventional instrument during retraction of the distal element and the proximal element.
- FIGURE 1 is an elevational view, partially in section, depicting the system of the present invention disposed within the internal carotid artery of a patient, including a catheter, an extendable member in extended condition, an interventional instrument in unexpanded condition, and a first embodiment of a movement preventing element.
- FIG. 2 is an elevational view, partially in section, similar to that shown in FIG. 1, depicting the system of the present invention, wherein the extendable member is retracted, and the interventional instrument is in expanded condition.
- FIG. 3 is an elevational view, partially in section, depicting the system of the present invention, including a catheter, an extendable member in extended condition, an interventional instrument in unexpanded condition, and a second embodiment of a movement preventing element.
- FIG. 4 is an elevational view, partially in section, similar to that shown in FIG. 3, depicting the system of the present invention, wherein the extendable member is retracted, and the interventional instrument is in expanded condition.
- FIG. 5 is an elevational view, partially in section, depicting the system of the present invention, including a catheter, an interventional instrument in unexpanded condition, and a third embodiment of a movement preventing element including a pair of extendable members in unextended condition.
- FIG. 6 is an elevational view, partly in section, similar to that shown in FIG. 5, depicting the system of the present invention, wherein the pair of extendable members are in retracted condition, and the interventional instrument is in expanded condition.
- the present invention is directed to an improved system and method for efficiently and effectively enabling a therapeutic interventional procedure to be performed in a blood vessel at an interventional procedure site which is the site of a lesion. It is adapted to enable the delivery of a self-expandable interventional instrument to the interventional procedure site, and to enable expansion of the self- expandable interventional instrument at the interventional procedure site. It is further adapted to enable an extendable member to extend about the self-expandable interventional instrument for enabling delivery thereof to the interventional procedure site, and to enable retraction of the extendable member to enable the self-expandable interventional instrument to expand at the location of the stenosis at the interventional procedure site.
- a system 10 for enabling an interventional procedure to be performed in a blood vessel 12 at an area of treatment 14.
- the system 10 includes a catheter 16 adapted to enable the interventional procedure to be performed.
- the system 10 may be positioned on the catheter 16, and may be placed within the carotid artery 18 or other blood vessel of the patient on the catheter 16 and may be guided into position by a guide wire.
- the carotid artery 18 may have the area of treatment 14, which may comprise the interventional procedure site, wherein atherosclerotic plaque 20 may have built up against the inside wall 22, which decreases the diameter of the carotid artery 18. As a result, blood flow may be diminished through this area.
- the catheter 16 may include an elongated shaft 24 having a distal end 26 and a proximal end 28, and a support region 30 proximate the distal end 26 of the elongated shaft 24.
- the support region 30 includes a distal end 32 and a proximal end 34.
- the therapeutic interventional procedure may comprise implanting an interventional instrument 36 at the interventional procedure site 14, to compress the build-up of plaque 20 of the stenosis against the inside wall 22, to increase the diameter of the occluded area 14 of the artery 18, and to help restore sufficient flow of blood to the downstream vessels leading to the brain.
- the interventional instrument 36 not only helps increase the diameter of the occluded area, but may help prevent restenosis in the area of treatment 14.
- the interventional instrument 36 is adapted to be supported on the support region 30 of the catheter 16, and to be expanded and deployed at the interventional procedure site 14. It includes an unexpanded axial dimension constituting the unexpanded length thereof, and is adapted to be expandable in a direction generally transverse to the axial dimension thereof.
- the interventional instrument 36 may comprise for example a self-expandable stent, the elastic nature of which enables self-expansion thereof absent constraint.
- the self-expandable stent 36 includes a distal end 38 and a proximal end 40, and includes a plurality of struts 42, each of which includes a distal end 44 and a proximal end 46.
- An extendable member 48 is adapted to be extendable about the self- expandable stent 36 for delivery of the self-expandable stent 36 to the interventional procedure site 14. It is further adapted to be retractable from extending about the self- expandable stent 36 for enabling the self-expandable stent 36 to expand at the interventional procedure site 14.
- the extendable member 48 may comprise a sheath.
- a movement preventing element 50 is adapted to prevent axial movement of the self-expandable stent 36 in the support region 30 of the catheter elongated shaft 24, during retraction of the extendable member 48 from extending about the self- expandable stent 36, for enabling deployment of the self-expandable stent 36 at the location of the stenosis at the interventional procedure site 14.
- the movement preventing element 50 may be adapted to prevent distal axial movement of the self- expandable stent 36. In the embodiment of the invention illustrated in FIGS.
- the movement preventing element 50 comprises portions 52 projecting from the support region 30 of the elongated shaft 24, so as to project distal to the struts 42 of the self- expandable stent 36 and prevent distal axial movement thereof.
- the proj ecting portions 52 may comprise for example bumps, ridges, knobs or hooks.
- the movement preventing element 50 comprises a pair of spring anchors, each of which includes a proximal end 54 and a distal end 56 therein. Each spring anchor 50 is adapted to be secured to the proximal end 34 of the support region 30 of the elongated shaft 24.
- each spring anchor 50 includes a portion 58 projecting therefrom distal to a strut 42 of the self-expandable stent 36.
- the projecting portion 58 may comprise a bump or a hook.
- Each spring anchor 50 is adapted to expand with and restrain the strut 42 to prevent distal axial movement of the self-expandable stent 36 during deployment thereof.
- the sheath 48 is further adapted to be advanced over the support region 30 of the elongated shaft 24 to recover the spring anchors 50 after deployment of the self-expanding stent 36. In the embodiment of the invention seen in FIGS.
- the movement preventing element 50 comprises a distal sheath 60, adapted to be extendable about and retractable from extending about the distal end 38 of the self-expandable stent 36, and a proximal sheath 62, adapted to be extendable about and retractable from extending about the proximal end 40 of the self-expandable stent 36, so as to provide a mid-stent articulation point, and prevent axial movement of the self-expandable stent 36.
- the middle-outward deployment is adapted to reduce jumping of the stent 36, since axial forces generated would be equal and opposite, counteracting each other and reducing any tendency of the stent 36 to shift.
- the system 10 further includes an element 64 for enabling the distal sheath 60 to be retracted from extending about the distal end 38 of the self-expandable stent 36, and an element for enabling the proximal sheath 62 to be retracted from extending about the proximal end 40 of the self-expandable stent 36.
- the distal sheath retraction-enabling element 64 and the proximal sheath retraction- enabling element are preferably adapted to enable retracting movements at substantially equal rates of the distal sheath 60 and the proximal sheath 62.
- the self-expandable stent 36 further includes a medial portion 66.
- the distal sheath 60 includes a distal end 68, and the distal sheath retracting-enabling element 64 is adapted to be connected to the distal end 68 of the distal sheath 60, and to be controlled from the proximal end 28 of the elongated shaft 24.
- the distal sheath retraction-enabling element 64 may comprise for example a mandrel or hypotube, or a cylindrical or tubular member extending under the self-expandable stent 36 and connected to the distal end 68 of the distal sheath 60.
- the system 10 may be positioned in the patient's vasculature utilizing any one of a number of different methods.
- the catheter elongated shaft support region 30, the stent 36 supported thereon, and the sheath 48 extending thereabout may be placed in the blood vessel 12 by utilizing the catheter 16 and the sheath 48, which are inserted into the patient's vasculature and manipulated by the physician to the area of treatment 14 so as to cross the stenosis in the blood vessel 12.
- the sheath 48 may then be retracted from extending about the stent 36, so as to enable the stent 36 to expand at the interventional procedure site 14.
- the movement preventing element 50 in the catheter elongated shaft support portion 30 is adapted to prevent axial movement and expansion of the stent 36 during retraction of the sheath 48, so as to enable deployment of the stent 36 at the location of the stenosis at the interventional procedure site 14 upon retraction of the sheath 48.
- the projecting portions 52 in the catheter elongated shaft support region 30 prevent distal axial movement of the stent 36 during retraction of the sheath 48 in the proximal direction.
- the projecting portion 52 at the proximal end 54 of the spring 50 prevents a distal axial movement of the stent 36 during retraction of the sheath 48 in the proximal direction.
- the embodiment of the invention seen in FIGS. 3-4 prevents a distal axial movement of the stent 36 during retraction of the sheath 48 in the proximal direction.
- the particular embodiments of the movement preventing element 50 are capable of being positioned in the blood vessel 12.
- the movement preventing element 50 may further be comprised of other forms of material.
- the movement preventing element 50 is shown as in various shapes in the embodiments herein, it can be formed in any one of a number of different shapes depending upon the construction desired.
- the portions 52 of the movement preventing element 50 which project from the support region 30 of the catheter elongated shaft 24, as shown in FIGS.
- the spring anchor of the movement enabling element 50 may be comprised of a material sufficiently elastic to expand with the stent 36, and to be safely recoverable, such as steel, nitinol, or polymer.
- the portion 58 of the spring anchor 50 may be comprised for example of material different from the material of the spring anchor 50, and may be attached to the distal end 56 of the spring anchor 50.
- the distal sheath 60 and the proximal sheath 62 as seen in FIGS. 5-6, may each for example be comprised of a material different from the other, adapted to provide enhanced delivery properties, wherein the distal sheath 60 may be softer or may include an afraumatic tip.
- the various components may be joined by suitable adhesives such as acrylonifrile based adhesives or cyanoacrylate based adhesives. Heat shrinking or heat bonding may also be employed where appropriate.
- Plastic-to-plastic or plastic- to-metal joints can be effected by a suitable acrylonifrile or cyanoacrylate adhesive. Variations can be made in the composition of the materials to vary properties as needed.
- the system and method of the present invention enhances substantially the effectiveness of performing interventional procedures by preventing axial movement of the self-expandable stent during retraction of the extendable member, to enable the self-expandable stent to expand at the location of the stenosis at the interventional procedure site. Further modifications and improvements may additionally be made to the system and method disclosed herein without the departing from the scope of the invention. Accordingly, it is not intended that the invention be limited, except as by the appended claims.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002239327A AU2002239327A1 (en) | 2000-11-20 | 2001-11-13 | System and method for accurately deploying a stent |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/717,145 US6582460B1 (en) | 2000-11-20 | 2000-11-20 | System and method for accurately deploying a stent |
EP09/717,145 | 2000-11-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002041805A2 true WO2002041805A2 (en) | 2002-05-30 |
WO2002041805A3 WO2002041805A3 (en) | 2003-03-06 |
Family
ID=24880879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/US2001/043939 WO2002041805A2 (en) | 2000-11-20 | 2001-11-13 | System and method for accurately deploying a stent |
Country Status (3)
Country | Link |
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US (1) | US6582460B1 (en) |
AU (1) | AU2002239327A1 (en) |
WO (1) | WO2002041805A2 (en) |
Cited By (4)
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WO2004066877A1 (en) * | 2003-01-21 | 2004-08-12 | Boston Scientific Limited | Method and system for delivering and implanting a graft |
WO2004091450A2 (en) | 2003-04-11 | 2004-10-28 | Boston Scientific Limited | Stent delivery system with securement and deployment accuracy |
WO2006019551A1 (en) * | 2004-07-20 | 2006-02-23 | Medtronic Vascular, Inc. | Device and method for delivering an endovascular stent-graft having a longitudinally unsupported portion |
US9066826B2 (en) | 2004-04-09 | 2015-06-30 | Boston Scientific Scimed, Inc. | Medical device delivery systems |
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US6514261B1 (en) * | 1998-09-30 | 2003-02-04 | Impra, Inc. | Delivery mechanism for implantable stent |
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US9737427B2 (en) | 2004-04-09 | 2017-08-22 | Boston Scientific Scimed, Inc. | Medical device delivery systems |
WO2006019551A1 (en) * | 2004-07-20 | 2006-02-23 | Medtronic Vascular, Inc. | Device and method for delivering an endovascular stent-graft having a longitudinally unsupported portion |
JP2008507331A (en) * | 2004-07-20 | 2008-03-13 | メドトロニック ヴァスキュラー インコーポレイテッド | Device and method for delivering an intravascular stent-graft having a portion that is not longitudinally supported |
US7758626B2 (en) | 2004-07-20 | 2010-07-20 | Medtronic Vascular, Inc. | Device and method for delivering an endovascular stent-graft having a longitudinally unsupported portion |
Also Published As
Publication number | Publication date |
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WO2002041805A3 (en) | 2003-03-06 |
AU2002239327A1 (en) | 2002-06-03 |
US6582460B1 (en) | 2003-06-24 |
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