US20110029065A1 - Reconstrainment Band with Reduced Removal Interference - Google Patents
Reconstrainment Band with Reduced Removal Interference Download PDFInfo
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- US20110029065A1 US20110029065A1 US12/845,243 US84524310A US2011029065A1 US 20110029065 A1 US20110029065 A1 US 20110029065A1 US 84524310 A US84524310 A US 84524310A US 2011029065 A1 US2011029065 A1 US 2011029065A1
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- Prior art keywords
- stent
- band
- reconstrainment
- delivery tube
- sheath
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- 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
-
- 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
- A61F2/9522—Means for mounting a stent or stent-graft onto or into a placement instrument
-
- 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
- A61F2002/9505—Instruments specially adapted for placement or removal of stents or stent-grafts having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
-
- 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
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- 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)
Abstract
The reconstrainment band includes a hollow generally tubular shaped band having proximal and distal ends and having an exterior surface for engaging a stent and an interior surface for engaging a delivery tube. The exterior surface has at least one fin projecting therefrom along the longitudinal axis of the band. The fin has at least one obtusely shaped surface relative to the longitudinal axis and facing one of the ends. The reconstrainment band is included in a delivery device for intraluminally positioning and deploying a radially distensible stent. Reconstrainment of a partially deployed stent is provided by the delivery device.
Description
- The present application claims priority to U.S. Patent Application No. 61/229,976, filed Jul. 30, 2009, the entire contents of which are incorporated herein by reference.
- The present invention relates generally to reconstrainment bands and, more specifically, to a reconstrainment band having reduced interference with a stent when removed therefrom.
- An endoprosthesis or intraluminal prosthesis is a medical device used in the treatment of diseased bodily lumens. One type of endoprosthesis used in the repair and/or treatment of diseases in various body vessels is a stent. A stent is a generally longitudinal tubular device formed of biocompatible material which is useful to open and support various lumens in the body. For example, stents may be used in the vascular system, urogenital tract, esophageal tract, tracheal/bronchial tubes and bile duct, as well as in a variety of other applications in the body. These devices are implanted within the vessel to open and/or reinforce collapsing or partially occluded sections of the lumen.
- Stents generally include an open flexible configuration. This configuration allows the stent to be inserted through curved vessels. Furthermore, this configuration allows the stent to be configured in a radially compressed state for intraluminal catheter implantation. Once properly positioned adjacent the damaged vessel, the stent is radially expanded so as to support and reinforce the vessel. Radial expansion of the stent may be accomplished by inflation of a balloon attached to the catheter or the stent may be of the self-expanding variety which will radially expand once deployed. Tubular shaped structures, which have been used as intraluminal vascular stents, have included helically wound coils which may have undulations or zig-zags therein, slotted stents, ring stents, braided stents and open mesh wire stents. Super-elastic materials and metallic shape memory materials have also been used to form stents.
- A stent may be delivered to a specific location within a body lumen by a delivery device. The delivery device includes a delivery tube on which a reconstrainment band is supported, typically in coaxial relation therewith. A tubular stent is supported on the reconstrainment band, typically in coaxial relation therewith. A tubular sheath covers the stent in coaxial relation therewith and with the delivery tube. The reconstrainment band is fixed to the delivery tube to prevent axial displacement of the reconstrainment band relative to the delivery tube. The reconstrainment band engages the stent to prevent axial displacement of the stent relative thereto. The retention of the stent by the reconstrainment band maintains the axial position of the stent relative to the reconstrainment band and delivery tube when the sheath is axially displaced relative to the delivery tube and reconstrainment band. Without the retention of the stent provided by the reconstrainment band, axial displacement of the sheath relative to the delivery tube may cause associated axial displacement of the stent as a result of frictional contact between the sheath and stent.
- The retention of the stent by the reconstrainment band is beneficial during deployment of the stent by providing for the longitudinal position of the stent within the bodily lumen to be maintained during relative axial displacement of the sheath. The longitudinal position of the stent within the bodily lumen is typically significant. The maintenance of the longitudinal position of the stent relative to the delivery tube may be particularly difficult during reconstrainment. The sheath may be longitudinally retracted relative to the delivery tube such that a distal axial portion of the stent is exposed by the sheath and a proximal axial portion of the stent remains covered by the sheath. Reconstrainment refers to the forward axial displacement of the sheath relative to the delivery tube such that the axial distal portion of the stent which was uncovered by the longitudinal retraction of the sheath is recovered partially or completely by the sheath. The forward axial displacement of the sheath may cause forward longitudinal displacement of the stent relative to the delivery tube and, typically, the bodily lumen as a result of contact between the sheath and stent. Consequently, the stent may be carried by the sheath. Limiting or completely preventing such forward displacement of the stent relative to the delivery tube and bodily lumen is typically advantageous.
- The partial or complete uncovering of the stent which results from the retraction of the sheath relative to the delivery tube typically results in the radial expansion of the stent in an outward direction away from the reconstrainment band. Subsequently, the delivery tube and reconstrainment band mounted thereon are retracted or longitudinally displaced in the distal direction relative to the stent for removal of the delivery tube and reconstrainment band from the stent. The radial expansion of the stent may be sufficiently limited such that the radial clearance between the interior surfaces of the stent is less than the maximum radial dimension of the fins. Consequently, the retraction or rearward longitudinal displacement of the reconstrainment band relative to the stent may result in catching of the stent by the fins. Catching of the stent by the fins may impede the removal of the reconstrainment band and the attached delivery tube from within the stent. Also, catching of the stent by the fins may cause the stent to be carried by the reconstrainment band.
- Also, the reconstrainment of the stent and the initial loading thereof in the delivery device typically entails radially compressing the stent in the inward direction between the sheath and delivery tube. During the inward radial compression of the stent, it is possible for one or more of the fins to not be aligned with any of the voids in the stent into which the fins typically extend. A fin which is not aligned with any void in the stent will normally contact the interior surface of the stent as a result of the inward radial compression of the stent in the vicinity of the fin. Contact between the fin and stent may result in catching of the stent by the fin. Catching of the stent on one or more of the fins can impede the inward radial displacement of the stent toward the band and the associated inward radial compression of the stent. Consequently, the longitudinal displacement of the sheath in the distal or forward direction relative to the delivery tube which typically provides the compression of the stent is impeded. Impeding the longitudinal displacement of the sheath in the distal or forward direction relative to the
delivery tube 14 interferes with the reconstrainment of the stent, and the initial loading thereof between the sheath and reconstrainment band in the delivery device. - The reconstrainment band of the present invention is used with a stent delivery device. The reconstrainment band includes a hollow generally tubular shaped band having proximal and distal ends and having an exterior surface for engaging a stent and an interior surface for engaging a delivery tube. The exterior surface has at least one fin projecting therefrom along the longitudinal axis of the band. The fin desirably has at least one obtusely shaped surface relative to the longitudinal axis and facing one of the ends. The reconstrainment band is used with the delivery device for intraluminally delivering a radially distensible stent. The delivery device includes the stent, a delivery tube around which the reconstrainment band is secured, and a sheath. The stent is located between the reconstrainment band and sheath. The delivery device is used for intraluminally positioning the stent according to a method which includes positioning the delivery device within a bodily lumen, and slidably retracting the sheath from the delivery tube to uncover a portion or all of the stent. Reconstrainment of the partially uncovered stent is provided by longitudinally displacing the sheath in a forward direction relative to the delivery tube to recover a portion or the entire uncovered portion of the stent.
- The fin engages the stent when the reconstrainment band is located within the stent. The engagement of the fin with the stent resists axial displacement of the stent relative to the reconstrainment band. Consequently, when the reconstrainment band is fixed to the delivery tube, axial displacement of the stent relative to the delivery tube is obstructed. The obstruction of the axial displacement of the stent retains the axial position of the stent relative to the delivery tube. The axial position of the stent is retained by the reconstrainment band when the stent is located within a sheath and the sheath is axially displaced relative to the delivery tube. Consequently, the reconstrainment band and the fixed connection thereof to the delivery tube maintain the longitudinal position of the stent within the bodily lumen during reconstrainment.
- The inclination of the obtusely shaped surface reduces the likelihood of contact between the fin and stent causing the stent to catch on the fin. Consequently, the likelihood of the catching impeding the longitudinal displacement of the reconstrainment band within the stent is reduced. As a result, removal of the reconstrainment band and the attached delivery tube from within the stent is facilitated. Also, the likelihood of the catching causing the stent to be carried by the reconstrainment band during the removal thereof from within the stent is reduced.
- Additionally, the inclination of the obtusely shaped surface reduces the likelihood of the inward radial compression and displacement of the stent toward the reconstrainment band causing the stent to catch on the fin. Consequently, the likelihood of the catching impeding the reconstrainment of the stent which typically entails the inward radial compression and displacement of the stent toward the reconstrainment band is reduced. Further, the likelihood of the catching impeding the initial loading of the stent between the sheath and reconstrainment band in the delivery device which also typically entails the inward radial compression and displacement of the stent toward the reconstrainment band is reduced.
- These and other features of the invention will be more fully understood from the following description of specific embodiments of the invention taken together with the accompanying drawings.
- In the drawings:
-
FIG. 1 is a longitudinal cross-sectional view of the reconstrainment band of the present invention showing the reconstrainment band located within a stent, the stent being shown as located within a sheath, the reconstrainment band being shown as fixed to a delivery tube located within the reconstrainment band; -
FIG. 1A is a longitudinal view of the reconstrainment band of the present invention showing the reconstrainment band located within a stent as fixed to an alternate delivery tube assembly; -
FIG. 2 is a perspective view of the reconstrainment band ofFIG. 1 ; -
FIG. 3 is a longitudinal cross-sectional view of the reconstrainment band ofFIG. 2 ; -
FIG. 4 is a left end elevational view of the reconstrainment band ofFIG. 3 ; -
FIG. 5 is a perspective view of an alternative embodiment of the reconstrainment band ofFIG. 1 ; -
FIG. 6 is a longitudinal cross-sectional view of the reconstrainment band ofFIG. 5 ; -
FIG. 7 is a left end elevational view of the reconstrainment band ofFIG. 6 ; -
FIG. 8 is a perspective view of a further alternative embodiment of the reconstrainment band ofFIG. 1 ; -
FIG. 9 is a longitudinal cross-sectional view of the reconstrainment band ofFIG. 8 ; -
FIG. 10 is a left end elevational view of the reconstrainment band ofFIG. 9 ; -
FIG. 11 is a perspective view of a further alternative embodiment of the reconstrainment band ofFIG. 1 ; -
FIG. 12 is a longitudinal cross-sectional view of the reconstrainment band ofFIG. 11 ; -
FIG. 13 is a left end elevational view of the reconstrainment band ofFIG. 12 ; -
FIG. 14 is a perspective view of a further alternative embodiment of the reconstrainment band ofFIG. 1 ; -
FIG. 15 is a longitudinal cross-sectional view of the reconstrainment band ofFIG. 14 ; -
FIG. 16 is a left end elevational view of the reconstrainment band ofFIG. 15 ; -
FIG. 17 is a perspective view of a further alternative embodiment of the reconstrainment band ofFIG. 1 ; -
FIG. 18 is a longitudinal cross-sectional view of the reconstrainment band ofFIG. 17 ; -
FIG. 19 is a left end elevational view of the reconstrainment band ofFIG. 17 ; -
FIG. 20 is a perspective view of a further alternative embodiment of the reconstrainment band ofFIG. 1 ; -
FIG. 21 is a longitudinal cross-sectional view of the reconstrainment band ofFIG. 20 ; -
FIG. 22 is a left end elevational view of the reconstrainment band ofFIG. 20 ; -
FIG. 23 is a left end elevational view of an alternate embodiment of a reconstrainment band; and -
FIG. 24 is a longitudinal cross-sectional view of the reconstrainment band ofFIG. 23 . - Corresponding reference characters indicate corresponding parts throughout the several views of the drawings.
- Referring to the drawings and more specifically to
FIGS. 1 and 1A , thereconstrainment band 10 is used with adelivery device 12. Thedelivery device 12 includes adelivery tube 14 on which thereconstrainment band 10 is mounted in coaxial relation therewith. The mounting of thereconstrainment band 10 on thedelivery tube 14 provides for the obstruction of axial displacement of the reconstrainment band relative to the delivery tube. The mounting of thereconstrainment band 10 on thedelivery tube 14 may further provide for the obstruction of transverse or rotational displacement of the reconstrainment band relative to the delivery tube. - A
stent 16 is located around thereconstrainment band 10 in coaxial relation therewith. Thestent 16 has aproximal end 18, adistal end 20, anexterior surface 22, and aninterior surface 24. - The
stent 16 is engaged byfins 26 extending radially outward from the outer surface of thereconstrainment band 10 such that axial displacement of thestent 16 relative to the reconstrainment band is obstructed. The engagement of thestent 16 by thefins 26 may further obstruct transverse or rotational displacement of the stent relative to the reconstrainment band. - The
delivery device 12 may include atubular sheath 28 which is located circumferentially around thestent 16 in coaxially relation therewith. Thesheath 28 has adistal end 30 and aninterior surface 32. - The
delivery device 12 provides for the deployment of thestent 16 to a location within a body lumen by positioning the stent around and in engagement with thereconstrainment band 10 such that axial displacement of the stent relative to the reconstrainment band is obstructed. - The
sheath 28 is located around thestent 16 in coaxial relation therewith such that the stent is at least partially covered in the axial direction by the sheath. Thesheath 28 may completely cover thestent 16, if desired. When thestent 16 andsheath 28 are apart from one another and substantially no transverse force is applied to either, the transverse dimension of theexterior surface 22 of the stent is larger than the transverse dimension of theinterior surface 32 of the sheath. Thesheath 28 resists outward radial expansion to a greater degree relative to the resistance of thestent 16 to inward radial compression. Consequently, thestent 16 is radially compressed in the inward direction when thesheath 28 is located around the stent. - As shown in
FIGS. 2 to 4 , thereconstrainment band 10 includes a hollow, generally tubular shapedband 34 having aproximal end 24 and adistal end 38. Theband 34 has anexterior surface 40 for engaging thestent 16. Theband 34 has aninterior surface 42 for engaging thedelivery tube 14. Theexterior surface 40 has a plurality offins 26 projecting radially outward therefrom along thelongitudinal axis 44 of theband 34. Thefins 26 are integrally connected to theband 34. - The
fins 26 each extend longitudinally in the same direction as thelongitudinal axis 44. Desirably, theband 34 includes an even number offins 26, such that the fins are included in pairs. Thefins 26 are desirably located relative to a transverse plane through theband 34 such that adjacent pairs of fins are separated by arcuate dimensions which are the same. For example, when twofins 26 are included, they are desirably separated by about 180°. - The
fins 26 each have an obtusely shapedsurface 46 relative to thelongitudinal axis 44. The obtusely shapedsurface 46 faces theproximal end 36. The obtusely shapedsurface 46 intersects theexterior surface 40 at a location which is longitudinally offset in the distal direction relative to theproximal end 36 of theband 34. - The
fins 26 each have an obtusely shapedsurface 48 relative to thelongitudinal axis 44. The obtusely shapedsurface 48 faces thedistal end 38. The obtusely shapedsurface 48 intersects theexterior surface 40 at a location near to thedistal end 38 of theband 34. Any number offins 26 may be included on theband 34. For example, theband 34 may include any number of fins from 1 to 10 fins. As depicted inFIGS. 23-24 , for example, the reconstrainment band may include ninefins 26 spaced around the exterior surface of theband 34. Desirably, eachfin 26 is spaced about 40° away from each other, such that each fin is separated by an equal distance around the periphery of theband 34. - The
fins 26 each have anexterior surface 50 which extends between the obtusely shapedsurfaces exterior surface 50 faces radially outward from theband 34. The obtusely shapedsurfaces surface 40 of thereconstrainment band 10. If desired, thefins 26 may have substantially rounded edges. The contour of theexterior surface 50 is preferably continuous. - The
reconstrainment band 10 and its components may be formed of expanded polytetrafluoroethylene (ePTFE) or polyurethane. Thereconstrainment band 10 may be formed of biocompatible materials, such as biocompatible polymers including those which are known. Such polymers may include fillers such as metals, carbon fibers, glass fibers or ceramics. Also, such polymers may include olefin polymers, polyethylene, polypropylene, polyvinyl chloride, polytetrafluoroethylene which is not expanded, fluorinated ethylene propylene copolymer, polyvinyl acetate, polystyrene, poly(ethylene terephthalate), naphthalene dicarboxylate derivatives, such as polyethylene naphthalate, polybutylene naphthalate, polytrimethylene naphthalate and trimethylenediol naphthalate, polyurethane, polyurea, silicone rubbers, polyamides, polycarbonates, polyaldehydes, natural rubbers, polyester copolymers, styrene-butadiene copolymers, polyethers, such as fully or partially halogenated polyethers, copolymers, and combinations thereof. Also, polyesters, including polyethylene terephthalate (PET) polyesters, polypropylenes, polyethylenes, polyurethanes, polyolefins, polyvinyls, polymethylacetates, polyamides, naphthalane dicarboxylene derivatives, and natural silk may be included in thereconstrainment band 10. In alternative embodiments, thereconstrainment band 10 may be formed from a polymer sleeve. - The
reconstrainment band 10 may optionally be formed of materials such as nitinol, Elgiloy, stainless steel, cobalt chromium, including M P 3 5N, cobalt-based alloy, tantalum, niobium, platinum, gold, titanium, combinations thereof and other biocompatible metals, polymers and materials. Additionally, thereconstrainment band 10 may include structural members which have an inner core formed of tantalum, gold, platinum, iridium, or a combination thereof, and an outer cladding of nitinol to provide composite members for improved radio-opacity or visibility. Examples of such composite members are disclosed in U.S. Patent Application Publication No. 2002/0035396 which is hereby incorporated by reference herein. - The reconstrainment band 10 maybe treated with anti-thrombogenic agents (such as heparin, heparin derivatives, urokinase, and PPack (dextrophenylalanine proline arginine chloroinethylketone)), anti-proliferative agents (such as enoxaprin, angiopeptin, or monoclonal antibodies capable of blocking smooth muscle cell proliferation, hirudin, and acetylsalicylic acid), anti-inflammatory agents (such as dexamethasone, prednisolone, corticosterone, budesonide, estrogen, sulfasalazine, and mesalamine), antineoplastic/antiproliferative/anti-miotic agents (such as paclitaxel, 5-fluorouracil, cisplatin, vinblastine, vincristine, epothilones, endostatin, angiostatin and thymidine kinase inhibitors), anesthetic agents (such as lidocaine, bupivacaine, and ropivacaine), anti-coagulants (such as D-Phe-Pro-Arg chloromethyl keton, an RGD peptide-containing compound, heparin, antithrombin compounds, platelet receptor antagonists, anti-thrombin antibodies, anti-platelet receptor antibodies, aspirin, prostaglandin inhibitors, platelet inhibitors and tick antiplatelet peptides), vascular cell growth promotors (such as growth factor inhibitors, growth factor receptor antagonists, transcriptional activators, and translational promotors), vascular cell growth inhibitors (such as growth factor inhibitors, growth factor receptor antagonists, transcriptional repressors, translational repressors, replication inhibitors, inhibitory antibodies, antibodies directed against growth factors, bifunctional molecules consisting of a growth factor and a cytotoxin, bifunctional molecules consisting of an antibody and a cytotoxin), cholesterol-lowering agents, vasodilating agents, and agents which interfere with endogenous vascoactive mechanisms.
- The
reconstrainment band 10 is preferably secured to thedelivery tube 14 of thedelivery device 12 such that the reconstrainment band is located around the delivery tube in coaxial relation therewith. Thereconstrainment band 10 may be removably secured to the delivery tube, if desired. The securing of thereconstrainment band 10 to thedelivery tube 14 obstructs axial displacement of the reconstrainment band relative to the delivery tube. The securing of thereconstrainment band 10 to thedelivery tube 14 may further provide for obstruction of transverse or rotational displacement of the reconstrainment band relative to the delivery tube. - The
stent 16 may be located around thereconstrainment band 10 in coaxial relation therewith. Thestent 16 has one or more voids in which thefins 26 extend to obstruct axial displacement of thestent 16 relative to thereconstrainment band 10. Consequently, axial displacement of thestent 16 relative to thedelivery tube 14 is obstructed. Thesheath 28 of thedelivery device 12 is located around thestent 16 in coaxial relation therewith. - During longitudinal displacement of the
sheath 28 relative to thedelivery tube 14, possible longitudinal displacement of thestent 16 associated with the sheath is resisted by thefins 26 which extend into the one or more voids in the stent. Consequently, the axial position of thestent 16 relative to thedelivery tube 14 is maintained such that longitudinal retraction of thesheath 28 relative to the delivery tube may provide for the uncovering of an axial portion or the entire outer surface of the stent which was previously covered by the sheath. Also, the maintenance of the axial position of thestent 16 relative to thedelivery tube 14 which is provided by the extension of thefins 26 into the one or more voids in the stent results in forward longitudinal displacement of thesheath 28 relative to the delivery tube enabling the sheath to cover an axial portion of the stent or the entire stent. The recovering of thestent 16 by thesheath 28 is referred to as reconstrainment of the stent. - Uncovering of the outer surface of the
stent 16 results in the radial expansion of the stent away from theband 34. Thesheath 28 may be sufficiently refracted relative to thestent 16 such that thedistal end 30 is located proximally relative to theproximal end 30. The proximal location of thedistal end 30 relative to theproximal end 18 results in the radial expansion of theentire stent 16 away from theband 34. - Alternatively, the
sheath 28 may be retracted from a position in which thedistal end 30 is located distally relative to theproximal end 18 to a position in which thedistal end 30 is closer to theproximal end 18 but still located distally thereof. Consequently, an axial portion of thestent 16 is uncovered by thesheath 28 resulting in the radial expansion of the uncovered portion of the stent. Thesheath 28 may be displaced distally relative to thedelivery tube 14 such that thedistal end 30 is moved closer to thedistal end 20 of thestent 16. Consequently, an axial portion of thestent 16 is recovered by thesheath 28 resulting in the inward radial compression of the recovered portion of the stent. The recovering of thestent 16 by thesheath 28 requires the axial position of thestent 16 relative to thedelivery tube 14 to be maintained during the distal or forward longitudinal displacement of thesheath 28 relative to the delivery tube. The axial position of thestent 16 relative to thedelivery tube 14 is maintained by the extension of thefins 26 into the voids in thestent 16. - The
stent 16 may be loaded in thedelivery device 12 by locating the stent around thereconstrainment band 10 in coaxial relation therewith. Thesheath 28 may then be located around thedelivery tube 14 in coaxial relation therewith such that thedistal end 30 has a proximal location relative to theproximal end 18. Thesheath 28 is then longitudinally displaced in the distal direction relative to thedelivery tube 14 such that thedistal end 30 engages theproximal end 18. Before the engagement between the proximal and distal ends 18, 30, theproximal end 18 is radially compressed in the inward direction sufficiently such that following the engagement of thedistal end 30 with theproximal end 18, theinterior surface 32 rides up on theexterior surface 22 such that continued distal or forward longitudinal displacement of thesheath 28 relative to thedelivery tube 14 results in the inward radial compression of the axial portion of thestent 16 which is within the sheath. The inward radial compression of thestent 16 by thesheath 28 results in thefins 26 extending in the radial direction into the voids in the stent. Typically, the distal or forward longitudinal displacement of thesheath 28 relative to thedelivery tube 14 is sufficient such that thedistal end 30 has a longitudinal position relative to the delivery tube which coincides with thedistal end 20 resulting in theentire stent 16 being located within the sheath. - The
delivery device 12, including thestent 16 located between thesheath 28 anddelivery tube 14, is inserted into and through a bodily lumen and displaced therein such that the stent is positioned at a desired location within the bodily lumen. When thedelivery device 12 has positioned thestent 16 at the desired location within the body lumen, the stent is released from thedelivery device 12 by maintaining the position of thedelivery tube 14 within the bodily lumen and retracting or proximally displacing thesheath 28 relative to the delivery tube to uncover the stent. Thesheath 28 is sufficiently retracted or rearwardly displaced relative to thedelivery tube 14 such that thedistal end 30 has a proximal or rearward location relative to theproximal end 18 of thestent 16. Consequently, theentire stent 16 radially expands away from theband 34 and engages the inner surface of the bodily lumen, typically, for implantation therein. During the retraction of thesheath 28, the axial position of thestent 16 relative to thedelivery tube 14 is maintained by the engagement of the stent by thefins 26 of thereconstrainment band 10. The engagement between thefins 26 and thestent 16 resists the stent from being carried by thesheath 28 in the direction of the retraction thereof. Thestent 16 is thereby deployed from thedelivery device 12 into the bodily lumen. - Following the radial expansion of the
entire stent 16, thedelivery tube 14 andreconstrainment band 10 mounted thereon are retracted or longitudinally displaced in the distal direction relative to the stent for removal of the delivery tube and reconstrainment band from the bodily lumen. The radial expansion of thestent 16 may be sufficiently limited such that the radial clearance between theinterior surface 24 is less than the maximum radial dimension of thefins 26. Consequently, the retraction or rearward longitudinal displacement of thereconstrainment band 10 relative to thestent 16 may result in contact between the obtusely shapedsurfaces 46 andstent 16. The inclination of the obtusely shapedsurfaces 46 reduces the likelihood of the contact between thefins 26 andstent 16 resulting in catching of the stent by the fins. Catching of thestent 16 by thefins 26 may impede the removal of thereconstrainment band 10 and the attacheddelivery tube 14 from the bodily lumen. Also, catching of thestent 16 by thefins 26 may dislodge the stent from the inner surface of the bodily lumen and displace the stent relative thereto. - Following the loading of the
stent 16 in thedelivery device 12, and the insertion and displacement thereof through a bodily lumen such that the stent is positioned at the desired location in the bodily lumen, thesheath 28 may be retracted or longitudinally displaced in the rearward direction relative to thedelivery tube 14 such that thedistal end 30 remains positioned distally relative to theproximal end 18. Consequently, retraction of thesheath 28 uncovers an axial portion of thestent 16 resulting in the radial expansion of the uncovered axial portion thereof. The radial expansion of thestent 16 results in the radial displacement of the sections thereof which are adjacent to thefins 26 toward the ends thereof. The radial displacement of thestent 16 may be sufficient such that the ends of thefins 26 are located adjacent to theinterior surface 24 of the stent. Subsequently, thesheath 28 may be displaced in the distal or longitudinally forward direction relative to thedelivery tube 14 such that a portion or the entire uncovered axial portion of thestent 16 is recovered by the sheath. During the recovering of thestent 16 or reconstrainment, the axial position of the stent relative to thereconstrainment band 10 anddelivery tube 14 is maintained by the engagement of the stent by thefins 26. The engagement between thefins 26 andstent 16 obstructs the stent from being carried by thesheath 28 in the distal or longitudinally forward direction relative to thedelivery tube 14. Reconstrainment may be required after determining that further displacement of thedelivery device 12 within the body lumen is necessary to position thestent 16 at a different location within the body lumen. The axial portion of thestent 16 which is recovered by thesheath 28 is radially compressed in the inward direction by the sheath. - The radial expansion of the
stent 16 and longitudinal displacement of thesheath 28 may cause one or more of thefins 26 to become displaced from alignment with the voids in the stent. Afin 26 which is not aligned with any void in thestent 16 will normally contact theinterior surface 24 as a result of the inward radial compression of the stent in the vicinity of the fin. The inclination of the obtusely shapedsurfaces fins 26 andinterior surface 24 causing thestent 16 to catch on thefins 26. Catching of thestent 16 on one or more of thefins 26 can impede the inward radial displacement of the stent toward theband 34 and the associated inward radial compression of the stent. Consequently, the longitudinal displacement of thesheath 28 in the distal or forward direction relative to thedelivery tube 14 is impeded. Impeding the longitudinal displacement of thesheath 28 in the distal or forward direction relative to thedelivery tube 14 interferes with the reconstrainment of thestent 16, and with the initial loading thereof between the sheath andreconstrainment band 10 in thedelivery device 12. - An alternative embodiment of the
reconstrainment band 10 a is shown inFIGS. 5 to 7 . Parts illustrated inFIGS. 5 to 7 which correspond to parts illustrated inFIGS. 1 to 4 have, inFIGS. 5 to 7 , the same reference numeral as inFIGS. 1 to 4 with the addition of a suffix “a”. In this alternative embodiment, thereconstrainment band 10 a has fourfins 26 a. Thefins 26 a extend longitudinally in the same direction as thelongitudinal axis 44 a. Thefins 26 a are located relative to a transverse plane through theband 34 a such that the adjacent pairs of fins are separated by arcuate dimensions which are the same. The obtusely shapedsurfaces 46 a intersect theexterior surface 40 a at theproximal end 36 a of theband 34 a. The obtusely shapedsurfaces 48 a intersect theexterior surface 40 a at thedistal end 38 a of theband 34 a. - The exterior surfaces 50 a each have a pair of
lateral regions 52 which intersect theexterior surface 40 a of theband 34 a on opposite sides of the correspondingfin 26 a, as shown inFIGS. 5 and 7 . Thelateral regions 52 extend longitudinally in a direction which is parallel to thelongitudinal axis 44 a. Thelateral regions 52 each have corresponding contours which differ from the contour of theexterior surface 40 a such that the intersections between the lateral regions and exterior surface define discontinuities. The exterior surfaces 50 a each have ashoulder region 54 which is located between the correspondinglateral regions 52, as shown inFIG. 5 . Theshoulder regions 54 each extend longitudinally in a direction which is parallel to thelongitudinal axis 44 a. Theshoulder regions 54 each have corresponding contours which differ from the contours of thelateral regions 52 such that the intersections between the shoulder and lateral regions define discontinuities. - An alternative embodiment of the
reconstrainment band 10 b is shown inFIGS. 8 to 10 . Parts illustrated inFIGS. 8 to 10 which correspond to parts illustrated inFIGS. 1 to 4 have, inFIGS. 8 to 10 , the same reference numeral as inFIGS. 1 to 4 with the addition of the suffix “b”. In this alternative embodiment, thereconstrainment band 10 b has a pair offins 26 b which project from diametrically opposed locations on theexterior surface 40 b. Thefins 26 b extend longitudinally in the same direction as thelongitudinal axis 44 b. The obtusely shapedsurfaces 46 b intersect theexterior surface 40 b at theproximal end 36 b of theband 34 b. The obtusely shapedsurfaces 48 b intersect theexterior surface 40 b at thedistal end 38 b of theband 34 b. - The exterior surfaces 50 b each have a pair of
lateral regions 56 which intersect theexterior surface 40 b of theband 34 b on opposite sides of the correspondingfin 26 b, as shown inFIGS. 8 and 10 . Thelateral regions 56 extend longitudinally in a direction which is parallel to thelongitudinal axis 44 b. Thelateral regions 56 each have corresponding contours which differ from the contour of theexterior surface 40 b such that the intersections between the lateral regions and exterior surface define discontinuities. The exterior surfaces 50 b each have ashoulder region 58 which is located between the correspondinglateral regions 56, as shown inFIG. 8 . Theshoulder regions 58 each extend longitudinally in a direction which is parallel to thelongitudinal axis 44 b. Theshoulder regions 58 each have corresponding contours which differ from the contours of thelateral regions 56 such that the intersections between the shoulder and lateral regions define discontinuities. - An alternative embodiment of the
reconstrainment band 10 c is shown inFIGS. 11 to 13 . Parts illustrated inFIGS. 11 to 13 which correspond to parts illustrated inFIGS. 1 to 4 have, inFIGS. 11 to 13 , the same reference numeral as inFIGS. 1 to 4 with the addition of a suffix “c”. - In this alternative embodiment, the
reconstrainment band 10 c has a pair offins 26 c which project from diametrically opposed locations on theexterior surface 40 c. Theband 34 c has a proximalintermediate end surface 60 which is circular and located between theproximal end 36 c andexterior surface 40 c. The proximalintermediate end surface 60 has a contour which is the same as the contour of the obtusely shapedsurface 46 c. Consequently, the intersection between theexterior surface 40 c and proximalintermediate end surface 60 defines a discontinuity. - The
band 34 c has a distalintermediate end surface 62 located between thedistal end 38 c andexterior surface 40 c. The distalintermediate end surface 62 is circular and has a contour which is the same as the obtusely shapedsurface 48 c. Consequently, the intersection between theexterior surface 40 c and distalintermediate end surface 64 defines a discontinuity. - The exterior surfaces 50 c each have a pair of
lateral regions 64 which intersect theexterior surface 40 c of theband 34 c on opposite sides of the correspondingfin 26 c, as shown inFIGS. 11 and 13 . Thelateral regions 64 each extend longitudinally in a direction which is parallel to the longitudinal axis 44 c. Thelateral regions 64 each have corresponding contours which differ from the contour of theexterior surface 40 c such that the intersections between thelateral regions 64 and exterior surface define discontinuities. The exterior surfaces 50 c each have a shoulder region 66 which is located between the correspondinglateral regions 64, as shown inFIG. 11 . The shoulder regions 66 each extend longitudinally in a direction which is parallel to the longitudinal axis 44 c. The shoulder regions 66 each have corresponding contours which differ from the contours of thelateral regions 64 such that the intersections between the shoulder and lateral regions define discontinuities. - An alternative embodiment of the
reconstrainment band 10 d is shown inFIGS. 14 to 16 . Parts illustrated inFIGS. 14 to 16 which correspond to parts illustrated inFIGS. 1 to 4 have, inFIGS. 14 to 16 , the same reference numerals as inFIGS. 1 to 4 with the addition of the suffix “d”. In this alternative embodiment, thereconstrainment band 10 d has a pair offins 26 d which project from diametrically opposed locations on theexterior surface 40 d. The obtusely shapedsurfaces 46 d intersect theexterior surface 40 d at a location which is longitudinally offset in the distal direction relative to theproximal end 36 d of theband 34 d. The obtusely shapedsurfaces 48 d intersect theexterior surface 40 d at thedistal end 38 d of theband 34 d. - The exterior surfaces 50 d each have a pair of base
lateral regions 68 which intersect theexterior surface 40 d of theband 34 d on opposite sides of the correspondingfin 26 d, as shown inFIGS. 14 and 16 . The baselateral regions 68 extend longitudinally in a direction which is parallel to thelongitudinal axis 44 d. The baselateral regions 68 each have corresponding contours which differ from the contour of theexterior surface 40 d such that the intersections between the base lateral regions and exterior surface define discontinuities. - The exterior surfaces 50 d each have a pair of intermediate
lateral regions 70 which intersect the respective baselateral regions 68 on opposite sides of the correspondingfin 26 d, as shown inFIGS. 14 to 16 . The intermediatelateral regions 70 extend longitudinally in a direction which is parallel to thelongitudinal axis 44 d. The intermediatelateral regions 70 each have corresponding contours which differ from the contours of the baselateral regions 68 such that the intersections between the intermediate and base lateral regions define discontinuities. The exterior surfaces 50 d each have ashoulder region 72 which is located between the corresponding intermediatelateral regions 70, as shown inFIG. 14 . Theshoulder regions 72 each extend longitudinally in a direction which is parallel to thelongitudinal axis 44 d. Theshoulder regions 72 each have corresponding contours which differ from the contours of the intermediatelateral regions 70 such that the intersections between the shoulder and intermediate lateral regions define discontinuities. - An alternative embodiment of the
reconstrainment band 10 e is shown inFIGS. 17 to 19 . Parts illustrated inFIGS. 17 to 19 which correspond to parts illustrated inFIGS. 1 to 4 have, inFIGS. 17 to 19 , the same reference numeral as inFIGS. 1 to 4 with the addition of the suffix “e”. In this alternative embodiment, thereconstrainment band 10 e has a pair offins 26 e which project from diametrically opposed locations on theexterior surface 40 e. - The
fins 26 e have respective base obtusely shapedsurfaces 73 located between the first corresponding obtusely shapedsurfaces 46 e and theexterior surface 40 e. The base obtusely shapedsurfaces 73 each have corresponding contours which differ from the contours of the respective first obtusely shapedsurfaces 46 e such that the intersections between the base obtusely shaped surfaces and respective obtusely shaped surfaces define discontinuities. The contours of the base obtusely shapedsurfaces 73 differ from the contour of theexterior surface 40 e such that the intersections between the base obtusely shaped surfaces and exterior surface define discontinuities. The base obtusely shapedsurfaces 73 intersect theexterior surface 40 e at a location which is longitudinally offset in the distal direction from theproximal end 36 e of theband 34 e. - The
fins 26 e have respective base obtusely shaped surfaces 74 located between the corresponding second obtusely shapedsurfaces 48 e and theexterior surface 40 e. The base obtusely shaped surfaces 74 each have corresponding contours which differ from the contours of the respective second obtusely shapedsurfaces 48 e such that the intersections between the base obtusely shaped surfaces and respective obtusely shaped surfaces define discontinuities. The contours of the base obtusely shaped surfaces 74 differ from the contour of theexterior surface 40 e such that the intersections between the base obtusely shaped surfaces and exterior surface define discontinuities. The base obtusely shaped surfaces 74 intersect theexterior surface 40 e at a location which is longitudinally offset in the proximal direction from thedistal end 38 e of theband 34 e. - The exterior surfaces 50 e each have a pair of base
lateral regions 75 which each intersect theexterior surface 40 e of theband 34 e on opposite sides of the correspondingfin 26 e, as shown inFIGS. 17 and 19 . The baselateral regions 75 extend longitudinally in a direction which is parallel to thelongitudinal axis 44 e. The baselateral regions 75 each have corresponding contours which differ from the contours of theexterior surface 40 e such that the intersections between the base lateral regions and exterior surface define discontinuities. - The exterior surfaces 50 e each have a pair of intermediate
lateral regions 76 which intersect the correspondingbase lateral region 75 on opposite sides of the correspondingfin 26 e, as shown inFIGS. 17 and 19 . The intermediatelateral regions 76 extend longitudinally in a direction which is parallel to thelongitudinal axis 44 e. The intermediatelateral regions 76 each have corresponding contours which differ from the contours of the baselateral regions 75 such that the intersections between the intermediate and base lateral regions define discontinuities. - The exterior surfaces 50 e each have a
shoulder region 78 which is located between the corresponding intermediatelateral regions 76, as shown inFIG. 17 . Theshoulder regions 78 each extend longitudinally in a direction which is parallel to thelongitudinal axis 44 e. Theshoulder regions 78 each have corresponding contours which differ from the contours of the intermediatelateral regions 76 such that the intersections between the shoulder and intermediate regions define discontinuities. - An alternative embodiment of the
reconstrainment band 10 f is shown inFIGS. 20 to 22 . Parts illustrated inFIGS. 20 to 22 which correspond to parts illustrated inFIGS. 1 to 4 , have, inFIGS. 20 to 22 , the same reference numeral as inFIGS. 1 to 4 with the addition of the suffix “f”. In this alternative embodiment, thereconstrainment band 10 f has a pair offins 26 f which project from diametrically opposed locations on theexterior surface 40 f. First obtusely shapedsurfaces 46 f intersect theexterior surface 40 f at theproximal end 36 f of theband 34 f. Second obtusely shapedsurfaces 48 f intersect theexterior surface 40 f at thedistal end 38 f of theband 34 f. - The exterior surfaces 50 f each have a pair of base
lateral regions 80 which each intersect theexterior surface 40 f of theband 34 f on opposite sides of the correspondingfin 26 f, as shown inFIGS. 20 and 22 . The baselateral regions 80 extend longitudinally in a direction which is parallel to thelongitudinal axis 44 f. The baselateral regions 80 each have corresponding contours which differ from the contour of theexterior surface 40 f such that the intersections between the base lateral regions and exterior surface define discontinuities. - The exterior surfaces 50 f each have a pair of intermediate
lateral regions 82 which intersect the correspondingbase lateral regions 80 on opposite sides of the correspondingfin 26 f, as shown inFIGS. 20 and 22 . The intermediatelateral regions 82 extend longitudinally in a direction which is parallel to thelongitudinal axis 44 f. The intermediatelateral regions 82 each have corresponding contours which differ from the contours of the baselateral regions 80 such that the intersections between the intermediate and base lateral regions define discontinuities. - The exterior surfaces 50 f each have a
shoulder region 84 which is located between the corresponding intermediatelateral regions 82, as shown inFIG. 20 . Theshoulder region 84 each extend longitudinally in a direction which is parallel to thelongitudinal axis 44 f. Theshoulder regions 84 each have corresponding contours which differ from the contours of the intermediatelateral regions 82 such that the intersections between the shoulder and intermediate lateral regions define continuities. - U.S. Pat. Nos. 5,833,632, 6,014,919, 6,260,458, and 6,428,489, 6,431,039 are hereby incorporated by reference herein. Applicant's co-pending U.S. Patent Publication No. 2008/0009934 is incorporated by reference in its entirety herein.
- While the invention has been described by reference to certain preferred embodiments, it should be understood that numerous changes could be made within the spirit and scope of the inventive concept described. Accordingly, it is intended that the invention not be limited to the disclosed embodiments, but that it have the full scope permitted by the language of the following claims.
Claims (12)
1. A reconstrainment band for use with a stent delivery device, said reconstrainment band comprising:
a hollow generally tubular shaped band having proximal and distal ends and having an exterior surface for engaging a stent and an interior surface for engaging a delivery tube,
said exterior surface having at least one fin projecting therefrom along the longitudinal axis of said band, said fin having at least one obtusely shaped surface relative to the longitudinal axis and facing one of said ends.
2. A reconstrainment band according to claim 1 , wherein said fin is coupled to said band.
3. A reconstrainment band according to claim 1 , wherein said fin is integral to said band.
4. A reconstrainment band according to claim 1 , wherein said fin comprises a plurality of fins.
5. A reconstrainment band according to claim 4 , wherein said plurality of fins comprises two opposed fins.
6. A reconstrainment band according to claim 5 , wherein a first fin and a second fin of said two fins are circumferentially disposed at about 180°.
7. A reconstrainment band according to claim 1 , wherein said band comprises a material selected from the group consisting of: a metal, a stainless steel, a polymer, and combinations thereof.
8. A reconstrainment band according to claim 1 , wherein said fin extends longitudinally outward from said band.
9. A delivery device for intraluminally delivering a radially distensible stent comprising:
a delivery tube;
a reconstrainment band having a hollow generally tubular shaped band having proximal and distal ends and having an exterior surface and interior surface, the interior surface engaging the delivery tube such that the band is secured thereto,
the exterior surface having at least one fin projecting therefrom along the longitudinal axis of the band, the fin having at least one obtusely shaped surface relative to the longitudinal axis and facing one of the ends;
a radially distensible generally tubular shaped stent located around the band such that the fin extends into a void in the stent; and
a hollow generally tubular sheath located around the stent in coaxial relation therewith, the sheath being longitudinally displaceable relative to the stent and delivery tube.
10. A method for intraluminally positioning a radially distensible stent comprising:
providing a delivery device according to claim 9 ;
positioning said delivery device within a body lumen; and
slidably retracting the sheath relative to the delivery tube to uncover a portion of the stent, such that the uncovered portion of the stent radially expands against a wall of bodily lumen.
11. A method according to claim 10 and further comprising slidably displacing the sheath relative to the delivery tube in a longitudinally forward direction to recover the uncovered portion of the stent,
said method further comprising repositioning the delivery device within the bodily lumen to a new position therein;
12. A method according to claim 11 , and further comprising slidably retracting the sheath from the delivery tube to completely uncover the stent for the releasing thereof from the delivery device.
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- 2010-07-28 JP JP2012522996A patent/JP5716025B2/en active Active
- 2010-07-28 CA CA2764453A patent/CA2764453C/en not_active Expired - Fee Related
- 2010-07-28 EP EP10742353.5A patent/EP2459128B1/en active Active
- 2010-07-28 US US12/845,243 patent/US20110029065A1/en not_active Abandoned
- 2010-07-28 AU AU2010279034A patent/AU2010279034B2/en not_active Ceased
- 2010-07-28 WO PCT/US2010/043521 patent/WO2011014550A1/en active Application Filing
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2016
- 2016-01-28 US US15/009,449 patent/US10265208B2/en active Active
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2019
- 2019-03-21 US US16/360,826 patent/US11065141B2/en active Active
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2021
- 2021-06-30 US US17/364,140 patent/US11931278B2/en active Active
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US10130470B2 (en) | 2010-08-17 | 2018-11-20 | St. Jude Medical, Llc | Sleeve for facilitating movement of a transfemoral catheter |
US9439795B2 (en) | 2010-09-17 | 2016-09-13 | St. Jude Medical, Cardiology Division, Inc. | Retainers for transcatheter heart valve delivery systems |
US10799351B2 (en) | 2010-09-17 | 2020-10-13 | St. Jude Medical, Cardiology Division, Inc. | Retainers for transcatheter heart valve delivery systems |
US10028830B2 (en) | 2011-07-28 | 2018-07-24 | St. Jude Medical, Llc | Expandable radiopaque marker for transcatheter aortic valve implantation |
US9370422B2 (en) | 2011-07-28 | 2016-06-21 | St. Jude Medical, Inc. | Expandable radiopaque marker for transcatheter aortic valve implantation |
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US9949853B2 (en) | 2012-04-23 | 2018-04-24 | Covidien Lp | Delivery system with hooks for resheathability |
US9078659B2 (en) | 2012-04-23 | 2015-07-14 | Covidien Lp | Delivery system with hooks for resheathability |
US10441418B2 (en) | 2012-06-26 | 2019-10-15 | St. Jude Medical, Cardiology Division, Inc. | Apparatus and method for aortic protection and tavi planar alignment |
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US11612483B2 (en) | 2012-06-29 | 2023-03-28 | St. Jude Medical, Cardiology Division, Ine. | System to assist in the release of a collapsible stent from a delivery device |
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US20180370805A1 (en) * | 2013-03-15 | 2018-12-27 | West Virginia University Research Corporation | Process for pure carbon production, compositions, and methods thereof |
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US10265207B2 (en) | 2013-08-27 | 2019-04-23 | Covidien Lp | Delivery of medical devices |
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US11103374B2 (en) | 2013-08-27 | 2021-08-31 | Covidien Lp | Delivery of medical devices |
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Also Published As
Publication number | Publication date |
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EP2459128A1 (en) | 2012-06-06 |
CA2764453C (en) | 2017-06-27 |
US11065141B2 (en) | 2021-07-20 |
WO2011014550A1 (en) | 2011-02-03 |
US20210322194A1 (en) | 2021-10-21 |
EP2459128B1 (en) | 2018-04-04 |
JP5716025B2 (en) | 2015-05-13 |
CA2764453A1 (en) | 2011-02-03 |
US20190216626A1 (en) | 2019-07-18 |
AU2010279034B2 (en) | 2014-09-18 |
JP2013500777A (en) | 2013-01-10 |
US10265208B2 (en) | 2019-04-23 |
AU2010279034A1 (en) | 2012-02-09 |
US20160143761A1 (en) | 2016-05-26 |
US11931278B2 (en) | 2024-03-19 |
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