Having Pleats Patents (Class 623/1.28)
  • Patent number: 11419712
    Abstract: An endoluminal valve (30) for controlling fluid flow during a surgical procedure is integrated into an access branch (24) of a tubular prosthetic device (10), the access branch (24) receiving a delivery system (100) including a shaft (110), a housing (112) with a depressible finger actuator (122) configured to contact a resilient wall surface (38) of inwardly tapering closure elements (40) of the integrated valve (30), and a fluid venting plug (133) on the shaft (110) which removably seats in an access opening (34) at the proximal end (32) of the endoluminal valve (30), wherein the proximal end (32) is secured within a lumen (26) of the access branch (24) and a distal end (36) of the endoluminal valve (30) located within the lumen (26) comprises self-sealing edges (42) coming together to form a flow-inhibiting seal.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: August 23, 2022
    Assignee: Vascutek Limited
    Inventor: Gary McDonald
  • Patent number: 11389288
    Abstract: An implantable tissue connector (1; 1a) adapted to be connected to a tubular part of living tissue (70; 80) within a patient's body (100) comprises a conduit (2) and at least one flexible sleeve (10) adapted to axially extend and closely fit around at least part of the outer surface (6) of the conduit. The conduit is inserted into the tubular part of living tissue and the flexible sleeve placed over the tubular part of living tissue. Various alternatives are described of how the living tissue may be prevented form slipping off of the conduit.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: July 19, 2022
    Inventor: Peter Forsell
  • Patent number: 10070977
    Abstract: An enhanced stent apparatus, comprising: a support element, wherein the support element is constructed to be positioned in a body lumen; and, a porous structure, the porous structure located on a surface of the support element, and wherein the porous structure is comprised of at least one fiber under 30 microns in diameter, has a coverage area of less than 30% and is provided with apertures.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: September 11, 2018
    Assignee: INSPIRE M.D. LTD
    Inventors: Zeev Asher Holzer, Ofir Paz, Eli Bar, Ilana Cohen
  • Patent number: 9439761
    Abstract: A stentless support structure capable of being at least partly assembled in situ. The support structure comprises a braided tube that is very flexible and, when elongated, becomes very long and very small in diameter, thereby being capable of placement within a small diameter catheter. The support structure is preferably constructed of one or more thin strands of a super-elastic or shape memory material such as Nitinol. When released from the catheter, the support structure folds itself into a longitudinally compact configuration. The support structure thus gains significant strength as the number of folds increase. This radial strength obviates the need for a support stent. The support structure may include attachment points for a prosthetic valve.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 13, 2016
    Assignee: HLT, Inc.
    Inventors: Gary A. Thill, Robert Foster Wilson, John P. Gainor, Christopher M. Banick
  • Patent number: 9034030
    Abstract: An arrangement for temporarily retaining a side arm (36) of a stent graft (30) in a selected position during loading thereof onto a deployment device, the side arm extending from an ostium (38) in the tubular body (32) and substantially helically around and along the tubular body to an open end (40). A first tie down wire (48) is stitched through the tubular body and through the side arm and then through the biocompatible graft material of the tubular body at the open end of the side arm. The stent graft can then be loaded into a sheath of a deployment device for the stent graft. There can be a second tie down wire (50) stitched through the biocompatible graft material of the tubular body and through the side arm and then through the biocompatible graft material of the tubular body at the ostium end of the side arm. The first and/or second tie down wires can be withdrawn after the stent graft is loaded into the sheath or left in place until delivery.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: May 19, 2015
    Assignee: Cook Medical Technologies LLC
    Inventor: Gwynne Hannay
  • Patent number: 9011516
    Abstract: Medical devices, such as endoprostheses, and methods of making the devices are described. In some embodiments, a medical device includes an elongated hollow body formed of a polymeric matrix containing one or more regions of a pre-determined weight percent of carbon nanotubes in general alignment in a pre-determined orientation. The medical device can have a compressed state with a first transverse dimension and an expanded state with a second relatively greater transverse dimension.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: April 21, 2015
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Jan Weber, Thomas J. Holman, Tracee Eidenschink
  • Patent number: 8968389
    Abstract: The present embodiments provide a stent graft having a tubular configuration defining a lumen therethrough, the stent graft having a proximal section and a distal section. A folded section is positioned between the proximal section and the distal section. The folded section includes a first fold directed toward the distal end and engaged with the proximal section and a second fold directed toward the proximal end and engaged with the distal section. A valve arrangement is positioned in at least one of the first and second folds providing access from an exterior of the graft to the interior of the stent graft for insertion of an additional device.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 3, 2015
    Assignee: The Cleveland Clinic Foundation
    Inventors: Roy K. Greenberg, Karl J. West, Stephen Benefit
  • Patent number: 8968390
    Abstract: The present invention relates to covered endoprosthetic devices. Covered endoprosthetic devices comprise an endoprosthesis and a sheath. The sheath comprises a central portion and outer portions, wherein the central portion preferentially restricts or causes a restriction of blood flow. Blood flow can be reduced by the central portion of the sheath by varying the permeability of the sheath or by having projections on the sheath that slow blood flow. Permeability may be provided by perforations or holes in the material of the sheath or by varying the polymer structure that makes up the sheath itself. The outer portions of the sheath do not substantially reduce blood flow. Methods of using sheath-covered endoprosthetic devices of the invention to treat aneurysms, especially aneurysms in proximity to small perforator vessels or arteries, are also encompassed.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: March 3, 2015
    Assignee: Medinol Ltd.
    Inventor: Jacob Richter
  • Patent number: 8905961
    Abstract: A cardiovascular conduit system may comprise a connector. The connector may comprise a proximal end adapted to attach to a cardiovascular organ. The proximal end may comprise a first plurality of expandable members, and each member in the first plurality of expandable members may be deployable from a delivery position to a deployed position. The first plurality of expandable members may be dimensioned to deploy inside the cardiovascular organ to secure the connector to the cardiovascular organ. The connector may comprise a distal end adapted to attach to a conduit and an opening extending through the connector. Connectors for cardiovascular conduit systems may also include expandable stents. Connectors may be rotatably secured to a conduit, and the conduit may be reinforced. Methods for forming and using cardiovascular conduit systems are also disclosed.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: December 9, 2014
    Assignee: St. Jude Medical, Inc.
    Inventors: Peter N. Braido, Yousef F. Alkhatib
  • Patent number: 8795221
    Abstract: A bypass device for influencing blood pressure, including an implant with a volumetric chamber, having a connector or connecting means for connecting the volumetric chamber to a natural cardiovascular system, and having an adaptor or adaptation means, by which a change in volume of a volume of the volumetric chamber is enabled or effected upon a pressure change in the cardiovascular system or in the volumetric chamber. According to this invention, a change in volume in a lower pressure range between 50 mmHg and a pressure threshold value amounting to at least 100 mmHg amounts to at most 10 cm3, and in an upper pressure range between the pressure threshold value and 150 mmHg amounts to at least 10 cm3. With the device according to this invention, high blood pressure can be reduced in a carefully directed way.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: August 5, 2014
    Assignee: E.S. Bio-Tech Limited
    Inventor: Mirko Doss
  • Patent number: 8579961
    Abstract: The present invention provides a sectional crimped graft that allows graft flexibility where required and limits the overall longitudinal extension. The present invention overcomes the disadvantage of fully crimped grafts by controlling the number of crimps per unit length, crimp height, crimp geometry and their location along the graft wall, dependent on the particular end-use application. In so doing, flexibility and elongation can be controllably tailored only in areas where significant anatomical angulation is present. It may also be useful in applications other than stent grafts such as surgical grafts for aortic and peripheral areas. Limiting the overall graft longitudinal extension also facilitates the deployment of the stent-graft into the blood vessel.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: November 12, 2013
    Assignee: Lifeshield Sciences LLC
    Inventors: Thomas V. Casey, II, Kristoff Nelson, Fergus Quigley
  • Patent number: 8491649
    Abstract: Embodiments of the present invention provide medical devices for treating a target site within the body and associated methods for fabricating and delivering medical devices. According to one embodiment, a medical device includes a tubular structure having proximal and distal ends and a side wall extending therebetween. At least a portion of the side wall can have a corrugated surface. The side wall further includes at least one layer of a metallic fabric configured to be compressed and heat set to define the corrugated surface. The tubular structure may comprise an expanded shape, and may be configured to be constrained to a smaller diameter than the expanded shape for delivery within a catheter to a target site and to assume the expanded shape upon release from the catheter.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: July 23, 2013
    Assignee: AGA Medical Corporation
    Inventor: Ryan Mach
  • Publication number: 20130131784
    Abstract: Implantable medical grafts fabricated of metallic or pseudometallic films of biocompatible materials having a plurality of microperforations passing through the film in a pattern that imparts fabric-like qualities to the graft or permits the geometric deformation of the graft. The implantable graft is preferably fabricated by vacuum deposition of metallic and/or pseudometallic materials into either single or multi-layered structures with the plurality of microperforations either being formed during deposition or after deposition by selective removal of sections of the deposited film. The implantable medical grafts are suitable for use as endoluminal or surgical grafts and may be used as vascular grafts, stent-grafts, skin grafts, shunts, bone grafts, surgical patches, non-vascular conduits, valvular leaflets, filters, occlusion membranes, artificial sphincters, tendons and ligaments.
    Type: Application
    Filed: November 9, 2012
    Publication date: May 23, 2013
    Applicant: Advanced Bio Prosthetic Surface, Ltd., a wholly owned subsidiary of Palmaz Scientific, Inc.
    Inventor: Advanced Bio Prosthetic Surfaces, Ltd., a wholly owned subsidiary of Palmaz Scientific, Inc.
  • Publication number: 20130096664
    Abstract: An implant, intended to be detachably fixed or crimped on a portion or an outer surface of a catheter for being delivered to an implantation site, includes a longitudinal axis, or an inner space or inner volume longitudinally extending within the implant, and a radial direction perpendicular to the longitudinal axis, space or volume. The implant includes a first structural element having a first portion, a second structural element having a second portion, and one or more interconnecting elements arranged between the first and the second structural elements. In the implant, the first portion and/or the second portion is/are located less radially as regards the longitudinal axis, inner space, or volume than a third portion of the one or more interconnecting elements.
    Type: Application
    Filed: February 16, 2011
    Publication date: April 18, 2013
    Applicant: Transcatheter Technologies GmbH
    Inventors: Wolfgang Goetz, Hou-Sen Lim
  • Patent number: 8313523
    Abstract: Implantable medical grafts fabricated of metallic or pseudometallic films of biocompatible materials having a plurality of microperforations passing through the film in a pattern that imparts fabric-like qualities to the graft or permits the geometric deformation of the graft. The implantable graft is preferably fabricated by vacuum deposition of metallic and/or pseudometallic materials into either single or multi-layered structures with the plurality of microperforations either being formed during deposition or after deposition by selective removal of sections of the deposited film. The implantable medical grafts are suitable for use as endoluminal or surgical grafts and may be used as vascular grafts, stent-grafts, skin grafts, shunts, bone grafts, surgical patches, non-vascular conduits, valvular leaflets, filters, occlusion membranes, artificial sphincters, tendons and ligaments.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: November 20, 2012
    Assignee: Advanced Bio Prosthetic Surfaces, Ltd.
    Inventors: Christopher E. Banas, Julio C. Palmaz
  • Publication number: 20120209370
    Abstract: A stentless support structure capable of being at least partly assembled in situ. The support structure comprises a braided tube that is very flexible and, when elongated, becomes very long and very small in diameter, thereby being capable of placement within a small diameter catheter. The support structure is preferably constructed of one or more thin strands of a super-elastic or shape memory material such as Nitinol. When released from the catheter, the support structure folds itself into a longitudinally compact configuration. The support structure thus gains significant strength as the number of folds increase. This radial strength obviates the need for a support stent. The support structure may include attachment points for a prosthetic valve.
    Type: Application
    Filed: April 27, 2012
    Publication date: August 16, 2012
    Inventors: Gary A. Thill, Robert Foster Wilson, John Gainor, Christopher M. Banick
  • Patent number: 8226708
    Abstract: A collapsible stent graft for aortic aneurysms includes a collapsible inner tubular member (26) and an outer layer (24) fused or adhered thereto such as to provide a spiral inflatable member (22) therebetween. The stent graft is inserted into an artery in the collapsed state and then expanded into position by introducing a liquid into the inflatable member and sealing the member. The graft is held in place by an expandable stent (40).
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: July 24, 2012
    Assignee: TriVascular, Inc.
    Inventor: Clifford Rowan Murch
  • Patent number: 8137395
    Abstract: The invention relates to a vessel prosthesis, particularly for the replacement of aorta segments near the heart, in the form of a pleated flexible tube with folds (3), the tube being configured as an arc, and the arc shape being fixed in an extension-resistant manner, in the non-implanted state, by means of extension limiters.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: March 20, 2012
    Assignee: Aesculap AG
    Inventors: Hans-Hinrich Sievers, Lisa Lippoth
  • Patent number: 8133277
    Abstract: A medical device which defines a lumen for flowing a bodily fluid from an upstream end of the device to a downstream end thereof is disclosed. The device has a luminal wall (14) that extends between the upstream and downstream ends and defines the lumen within which the fluid flows. The wall exhibits a succession of protuberances spaced from each other along the length of the device. Each protuberance has a flank facing upstream (54) and a flank facing downstream (64), the flank facing upstream extending into the fluid flow so that a radially outermost part of the flow of fluid from the upstream to the downstream end of the device impinges on the upstream flank and is thereby caused to reverse its flow, and flow upstream from the upstream flank to the downstream flank of the next adjacent protuberance upstream, creating micro-vortices between two adjacent protuberances.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: March 13, 2012
    Assignee: Bard Peripheral Vascular, Inc.
    Inventors: Hans Scholz, Karen Petzold, Ulf Kruger
  • Patent number: 8128683
    Abstract: The invention relates to a textile vascular prosthesis (1) with a circulatory pleating formed by folds (4), and with an arch-shaped longitudinal flexion (2) extending over at least a partial section and formed by asymmetric shortening gathering of the prosthesis wall by means of at least one longitudinal seam (7) extending along the partial section. The at least one longitudinal seam gathers the prosthesis wall while preserving the accordion-like structure (4) and the compacted state of the pleating (4) in the longitudinal direction.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: March 6, 2012
    Assignees: Aesculap & Co. KG
    Inventors: Lisa Lippoth, Christof Merckle, Helmut Goldmann, Jürgen Scherberich, Hans-Hinrich Sievers
  • Patent number: 7968036
    Abstract: There is disclosed a method for introducing a helical formation (11) into a flexible tubular material (12). The material (12) is supported together with a surrounding helical former (13) so as to deform the material (12) to have a helical indentation (11) corresponding to the shape of the former (13). The material (12) is then set in that configuration and the former (13) is removed.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: June 28, 2011
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
  • Patent number: 7918885
    Abstract: The invention relates to a vessel prosthesis, particularly for the replacement of aorta segments near the heart, in the form of a pleated flexible tube with folds (3), the tube being configured as an arc, and the arc shape being fixed in an extension-resistant manner, in the non-implanted state, by means of extension limiters.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: April 5, 2011
    Assignee: AESCULAP AG
    Inventors: Hans-Hinrich Sievers, Lisa Lippoth
  • Patent number: 7879085
    Abstract: The present invention provides an expanded tubular graft formed of expanded polytetrafluoroethylene (ePTFE). The graft has first and second open ends and a surface longitudinally extending between the ends. The graft also includes an inner and outer cylindrical walls, where the walls have crimps or corrugations located along the surface of the graft. Additionally, the graft is coated with biocompatible elastomer covering portions of the outer cylindrical walls of the PTFE graft. The resulting ePTFE crimped graft exhibits various enhanced properties, such as adjustable graft length, high kink resistance, improved suture retention and high crush resistance as compared to the same graft without the crimps.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: February 1, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Krzysztof Sowinski, Jamie S Henderson
  • Patent number: 7842098
    Abstract: A stent for maintaining an open passageway through a body lumen, such as the prostatic urethra of a male patient, includes an elongated segment including a flexible polymer material bridging a plurality of hoops. The elongated segment defines a lumen extending therethrough and has a distal end. A retention structure may be coupled to the distal end of the elongated segment to inhibit the distal end from migrating when the stent is placed within a body of a patient. The flexible polymer material is disposed between the plurality of hoops, thereby creating hinged members that allow for the spaces between the hoops to expand and contract longitudinally to accommodate prostatic swelling when the stent is placed within the prostatic urethra of the patient.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: November 30, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Robert Rioux, Ken Daignault
  • Publication number: 20100241218
    Abstract: A branch prosthesis configured for placement in a branch vessel includes an expandable tubular body portion, an expandable annular flange attached to a proximal end of the body portion, and a sealing sleeve proximally extending from the annular flange. The sealing sleeve is adapted to deform to a generally straight cylindrical hollow shape during implantation. When deployed, the sealing sleeve rolls up to a tightly-wound coil that bears against the annular flange. When used in conjunction with a main prosthesis having a side opening and deployed within in a main vessel, the annular flange of the branch prosthesis engages an outer surface of the main prosthesis around a perimeter of the side opening and the sealing sleeve engages an inner surface of the main prosthesis around the perimeter of the side opening to form a fluid-tight seal between the main prosthesis and the branch prosthesis.
    Type: Application
    Filed: March 23, 2009
    Publication date: September 23, 2010
    Applicant: Medtronic Vascular, Inc.
    Inventors: Walter Bruszewski, Masoumeh Mafi, Shahram Shamlou
  • Patent number: 7749262
    Abstract: An intraluminal stent, an intraluminal stent delivery system, and a method of treating a vascular condition. The stent includes a framework with a plurality of flap portions projecting substantially beyond a central core region. The flap portions are movable from a compressed position and an extended position when the stent is deployed. The system includes a catheter and the intraluminal stent. The method includes positioning an intraluminal stent within a vessel. A plurality of flap portions of the stent is extended from a compressed position into contact with the vessel.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: July 6, 2010
    Assignee: Medtronic Vascular, Inc.
    Inventors: Feridun Ozdil, Junghwa Jenn Cho, Joseph Berglund, Susan Rea
  • Patent number: 7655035
    Abstract: The vascular graft includes a conduit structure having outer and inner wall surfaces. The conduit structure includes a longitudinal central portion having a flexibility. The conduit structure further includes a pair of longitudinal intermediate portions each of which are integral with the central portion and located longitudinally such that the central portion is between the intermediate portions. The intermediate portions each have a flexibility which is less than the flexibility of the central portion.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: February 2, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Krzysztof Sowinski, Jamie Henderson
  • Publication number: 20090326643
    Abstract: A catheter assembly and related methods for preparing and assembling catheter assemblies. The catheter assembly includes main and side balloons. The main balloon includes side portions that are folded in opposite directions toward a bottom surface of the main balloon to place the main balloon in a folded state. The side balloon is typically positioned along a top surface of the main balloon. The folded balloons can be retained in a folded state with various retaining structures during further preparation and assembling of the catheter assembly.
    Type: Application
    Filed: June 27, 2008
    Publication date: December 31, 2009
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Rob Lucas, Mark Sagedahl, Adam Jennings
  • Patent number: 7575591
    Abstract: A prosthesis configured for establishing a fluid flow path through an artery or the like includes a generally cylindrical body portion formed from graft material. In accordance with a preferred aspect of the device, at least a portion of the graft material is profiled where the profile defines a geometric pattern, e.g. a series of Z pleats.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: August 18, 2009
    Assignee: Cordis Corporation
    Inventors: William L. Howat, Tara Schaneville
  • Patent number: 7510571
    Abstract: A composite multilayer implantable material having a first inner tubular layer formed of expanded polytetrafluoroethyene having a porous microstructure defined by nodes interconnected by fibrils, wherein said first layer has a plurality of pleated folds, a second tubular layer formed of textile material circumferentially disposed exteriorly to said first layer; and having an elastomeric bonding agent applied to one of said first layer or second layer and disposed within the pores of said microstructure for securing said first layer to said second layer.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: March 31, 2009
    Assignee: Boston Scientific, SCIMED, Inc.
    Inventors: John Spiridigliozzi, William R. Quinn, Ryan Cahill
  • Publication number: 20090012596
    Abstract: In at least one embodiment, the invention is directed to a stent having a tubular wall where at least a portion of the tubular wall comprises a bioabsorbable membrane. In the portion of the tubular wall containing the bioabsorbable membrane, the members (e.g. struts and connectors) of the stent are embedded in the bioabsorbable membrane. In at least one embodiment, the stent is also configured to elute a therapeutic agent.
    Type: Application
    Filed: July 6, 2007
    Publication date: January 8, 2009
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Gordon J. Kocur, John Blix, Thomas E. Broome, Adam Jennings
  • Publication number: 20080228262
    Abstract: The object of the invention is a nonwoven vascular prosthesis (1) with pleats (3) in the vessel wall (2). In a process for producing the pleated, nonwoven vascular prosthesis, the vessel wall is formed on a rod-shaped core (6) having a corrugated surface (7) corresponding to the pleats.
    Type: Application
    Filed: February 12, 2008
    Publication date: September 18, 2008
    Applicant: AESCULAP AG & CO.KG
    Inventors: Helmut Goldmann, Dennis Langanke, Dietmar Probst
  • Publication number: 20080140172
    Abstract: A multi-wall expandable device (40) that optionally can have at least one material (46) between, Outside, or inside m the walls (43, 44) of the device. The sheet of material can be solid, perforated, or strands. Alternatively, individual strand or strands (47) of material may be woven through structural segments of the multi-wall expandable device. The sheet or sheets of material, strand, or strands can be used as a reservoir for any substance to be delivered, such as a drug, a supplement, a mineral or biological materials such as stem cells or a combination thereof. Additionally, the device is designed with the length of the device capable of being opened and closed to facilitate placement surrounding the treated structure to form a splint to offer support, protection, facilitate healing and deliver drugs or biological materials to the treated structure. This capability of being openable and closable can be accomplished with the use of latches, hinges, or memory metals such as nitinol.
    Type: Application
    Filed: December 9, 2005
    Publication date: June 12, 2008
    Inventors: Robert Hunt Carpenter, Robert Owens Carpenter
  • Patent number: 7309461
    Abstract: A method of crimping a varied diameter graft is includes the steps of (i) providing a flat-woven tubular graft having an enlarged woven bulbous portion disposed between flat-woven tubular ends, wherein the flat-woven diameter of the bulbous section is greater than the flat woven diameters of the tubular ends; (ii) providing a mandrel shaped and sized to the woven bulbous section and having a curved crimping surface; and (iii) positioning the curved crimping surface within the bulbous woven section so that the bulbous woven section contours to the curved crimping surface.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: December 18, 2007
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Dennis Kujawski, Matthew Hain
  • Publication number: 20070156228
    Abstract: A prosthetic stent graft including a trunk with a vascular graft bifurcated into two flow channels. The flow channels have a first taper angle, decreasing area along its length between the bifurcation point and an outlet. A leg section of the stent graft includes a tubular vascular graft. An inlet of the leg section has a deployed diameter at least about the same size or larger than a deployed diameter of the outlet of the flow channels. The leg section has its own taper angle, preferably less than or about equal to, and more preferably about equal to the taper angle of the flow channel. The deployed diameter of the leg section inlet is preferably about the same size or larger than the deployed diameter of the flow channels adjacent the bifurcation point of the trunk section, and the deployed diameter of flow channel outlets are preferably about the same size or smaller than the deployed diameter of the leg section at an equal distance from the leg section inlet as the outlet is from bifurcation point.
    Type: Application
    Filed: January 3, 2006
    Publication date: July 5, 2007
    Inventors: David C. Majercak, Jin S. Park
  • Patent number: 7232461
    Abstract: An aneurysm neck covering device which is particularly useful for sealing the neck of an aneurysm located in the vicinity of a bifurcated blood vessel. The neck covering device includes a self-expanding stent for supporting and retaining a self-expanding neck cover which seals the neck of the aneurysm.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: June 19, 2007
    Assignee: Cordis Neurovascular, Inc.
    Inventor: Marc Ramer
  • Patent number: 7060092
    Abstract: A stent 1 comprising a sheet 2 of biocompatible material arranged as a tube and having a pattern of folds allowing the stent to be collapsed for deployment. The pattern of folds comprises a unit cell repeated over the sheet 2. A variety of different unit cells 3 are described. The pattern of folds may progress helically around the tube which assists in implantation by synchronising deployment. The stent 1 prevents restenosis because it is formed of a continuous sheet 2, and allows slippage to be minimised.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: June 13, 2006
    Assignee: ISIS Innovation Limited
    Inventors: Kaori Kuribayashi, Zhong You
  • Patent number: 6773457
    Abstract: An aorta graft device comprising a primary graft part having a proximal end and a first connecting portion at a distal opening, wherein the primary graft part has an anchoring area positioned between an ascending portion extending to said proximal end and a descending portion extending to said distal opening. Furthermore, the ascending portion is corrugated, and the descending portion is at least partially non-corrugated.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: August 10, 2004
    Assignees: William Cook Europe ApS, Cook Incorporated
    Inventors: Krasnodar Ivancev, Bansi Lal Koul
  • Patent number: 6773456
    Abstract: The present invention embodies an adjustable customized graft for placement within body lumens. The adjustable graft includes longitudinal and lateral pleats that can be individually released to thereby customize the length and lateral profile of the graft. A tubular jacket configured with access holes to the pleats is provided for delivering the adjustable graft within vasculature of the patient.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: August 10, 2004
    Assignee: Endovascular Technologies, Inc.
    Inventors: Andrew R. Gordon, Albert K. Chin, Steve G. Baker
  • Publication number: 20040049264
    Abstract: The present invention provides an expanded tubular graft formed of expanded polytetrafluoroethylene (ePTFE). The graft has first and second open ends and a surface longitudinally extending between the ends. The graft also includes an inner and outer cylindrical walls, where the walls have crimps located along the surface of the graft. Additionally, the graft is coated with biocompatible elastomer covering portions of the outer cylindrical walls of the PTFE graft. The resulting ePTFE crimped graft exhibits various enhanced properties, such as adjustable graft length, high kink resistance, improved suture retention and high crush resistance as compared to the same graft without the crimps.
    Type: Application
    Filed: September 6, 2002
    Publication date: March 11, 2004
    Applicant: SCIMED Life Systems, Inc.
    Inventors: Krzysztof Sowinski, Jamie S. Henderson
  • Publication number: 20040019375
    Abstract: The present invention provides a sectional crimped graft that allows graft flexibility where required and limits the overall longitudinal extension. The present invention overcomes the disadvantage of fully crimped grafts by controlling the number of crimps per unit length, crimp height, crimp geometry and their location along the graft wall, dependent on the particular end-use application. In so doing, flexibility and elongation can be controllably tailored only in areas where significant anatomical angulation is present. It may also be useful in applications other than stent grafts such as surgical grafts for aortic and peripheral areas. Limiting the overall graft longitudinal extension also facilitates the deployment of the stent-graft into the blood vessel.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 29, 2004
    Applicant: SCIMED Life Systems, Inc.
    Inventors: Thomas V. Casey, Kristoff Nelson, Fergus Quigley
  • Patent number: 6652577
    Abstract: A prosthetic stent with a tubular wall having local inwardly or outwardly formed elevations. Stents having such elevations have a higher mechanical stability if bend according to the curvature of the body vessels to be supported or repaired. Also a method for manufacturing a stent with such elevations is described.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: November 25, 2003
    Assignee: Boston Scientific SciMed, Inc.
    Inventor: Marc Gianotti
  • Patent number: 6626938
    Abstract: A stent-graft for insertion into a body vessel of a patient includes a hollow substantially cylindrical radially expandable stent having a body, two open ends and a longitudinal axis therebetween. The body of the stent is made from a plurality of interconnected struts. The stent-graft further includes a graft member attached to the body of the stent, wherein the graft member has a plurality of substantially longitudinally directed pleats disposed thereon. The graft further includes a plurality of radially oriented pleat interruptions disposed thereon.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: September 30, 2003
    Assignee: Cordis Corporation
    Inventors: Frank Butaric, Zevulen Fayngold, Durmus Koch, Marc Lewis Ramer
  • Publication number: 20030088305
    Abstract: A prosthetic device (1) adapted for the carriage of fluids therethrough within a human or animal body and to be placed in or replace a curved lumen. The prosthetic device has a control arrangement to control the length of one side with respect to the other side so that the device can be curved insitu to fit the curved lumen. The control arrangement can be an expansion restriction arrangement or a length reduction arrangement. The prosthesis can be stented or unstented and be formed from a tubular or corrugated material.
    Type: Application
    Filed: October 25, 2002
    Publication date: May 8, 2003
    Applicant: Cook Incorporated
    Inventors: Gregory Paul Van Schie, David Ernest Hartley
  • Patent number: 6358275
    Abstract: Vascular grafts, and methods for making the same, are provided. The vascular grafts comprise a graft tissue derived from a biological source that is enclosed within an external synthetic sleeve. The synthetic sleeve has an extended length that is greater than the length of the graft tissue. However, the sleeve is longitudinally compressed such that it has a resting length substantially similar to the length of the graft tissue.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: March 19, 2002
    Assignee: Sulzer Carbomedics Inc.
    Inventors: Brian K. Mcllroy, Tim Ashton, Roshan Maini, Richard E. Phillips
  • Patent number: 6352554
    Abstract: A prosthetic aortic conduit for replacing a root portion of an aorta is provided. The conduit comprises a first tubular portion and a second tubular portion which are connected together along a substantially common axis. The second tubular portion does not substantially deform in a longitudinal direction and has resilient means which allow said second portion to be expandable in a lateral direction. This second portion is able to deform laterally to mimic the function of the sinuses of Valsalva. The method of manufacturing such a conduit comprises the steps of: a) providing a first tubular conduit suitable for use in heart surgery and having a longitudinal axis and first resilient means allowing some expansion in the longitudinal direction only; b) securing to one of the ends of this first conduit a second tubular conduit suitable for use in heart surgery, this second conduit having second resilient means which allows some expansion in the lateral direction only.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: March 5, 2002
    Assignee: Sulzer Vascutek Limited
    Inventor: Ruggero De Paulis
  • Patent number: 6312462
    Abstract: The device of the present invention comprises a bifurcated graft fabricated from expanded PTFE (ePTFE). The inventive device is double walled so that following insertion into an aneurysm, fluid can be injected between the walls to expand the device thereby opening the inner tubular graft for receiving blood flow and locking the device into place in the aorta. The injected fluid may polymerize so that the device is permanently held in its expanded form. One embodiment of the device is fabricated with pockets or channels. After the device is delivered and expanded additional stiffening struts can be inserted into these pockets. In this way the basic device can be furled and tightly compressed for delivery (something not possible with a stent containing device). After the device is expanded, a stent-like structure can be inserted endovascularly giving the strength and resiliency of a stent-containing prosthesis.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: November 6, 2001
    Assignee: Impra, Inc.
    Inventors: John D. McDermott, David Renzi, Richard W. Layne, Christopher E. Banas
  • Patent number: 6287335
    Abstract: A bifurcated or straight intravascular folded tubular member is deliverable percutaneously or by small cutdown to the site of a vascular lesion. Its inserted state has a smaller nondeployed diameter and a shorter nondeployed length. The intravascular tubular member has a folded tubular section that is unfolded following insertion into the blood vessel. The length of the intravascular folded tubular member is sized in situ to the length of the vessel lesion without error associated with diagnostic estimation of lesion length. The folded tubular member is self-expandable or balloon-expandable to a larger deployed diameter following delivery to the lesion site. An attachment anchor can be positioned at the inlet or outlet ends of the intravascular folded tubular member to prevent leakage between the tubular member and the native vessel lumen and to prevent migration of the tubular member. The attachment anchor has a short axial length to provide a more focal line of attachment to the vessel wall.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: September 11, 2001
    Inventors: William J. Drasler, Joseph M. Thielen
  • Patent number: 6254630
    Abstract: The artificial blood vessel A comprises a front end wire ring 101, a rear end wire ring 102 arranged facing to the front end wire ring 101, a tubular cover 7 which connects the end wire rings 101, 102, and a plurality of intermediate wire rings 12 arranged spaced apart from each other between the front end wire ring 101 and the rear end wire ring 102. Each of the front end wire ring 101, the rear end wire ring 102 and the intermediate wire rings 12 are given flexibly foldable elasticity. The circumference of the front end wire ring 101 is equally divided into four by dividing points 411, 421, 431, 441. Hooking means 13 are formed for a front pull string to be passed through at the dividing points 411, 431.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: July 3, 2001
    Inventor: Kanji Inoue
  • Patent number: 6254629
    Abstract: The artificial blood vessel A comprises a front end wire ring 101, a rear end wire ring 102 arranged facing to the front end wire ring 101, a tubular cover 7 which connects the end wire rings 101, 102, and a plurality of intermediate wire rings 12 arranged spaced apart from each other between the front end wire ring 101 and the rear end wire ring 102. Each of the front end wire ring 101, the rear end wire ring 102 and the intermediate wire rings 12 are given flexibly foldable elasticity. The circumference of the front end wire ring 101 is equally divided into four by dividing points 411, 421, 431, 441. Hooking means 13 are formed for a front pull string to be passed through at the dividing points 411, 431.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: July 3, 2001
    Inventor: Kanji Inoue