Patents by Inventor David Majercak

David Majercak has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220387198
    Abstract: Various embodiments for an endovascular implantable device (and variations thereof) that virtually eliminates the problem of stent foreshortening phenomena in which the length of a stent or prosthesis shortens as the prosthesis is expanded in the biological vessel.
    Type: Application
    Filed: January 20, 2022
    Publication date: December 8, 2022
    Inventor: David MAJERCAK
  • Publication number: 20200179144
    Abstract: Various embodiments for an endovascular implantable device (and variations thereof) that virtually eliminates the problem of stent foreshortening phenomena in which the length of a stent or prosthesis shortens as the prosthesis is expanded in the biological vessel.
    Type: Application
    Filed: March 31, 2016
    Publication date: June 11, 2020
    Applicant: Cardinal Health Switzerland 515 Gmbh
    Inventor: David Majercak
  • Patent number: 10357275
    Abstract: An system for treating arterial occlusive disease with rotating cutting baskets whose outer diameter can be infinitely adjusted to adjust by the operator for precise excision of plaque buildup in the body vessel.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: July 23, 2019
    Assignee: CARDINAL HEALTH SWITZERLAND 515 GMBH
    Inventors: David Majercak, Wendy Ann Young
  • Patent number: 10130384
    Abstract: A catheter system and corresponding methods are provided for accessing a blood vessel true lumen from a sub-intimal plane of the vessel. The catheter includes components that are symmetric about the longitudinal axis and allow for reentry without the need to ensure a correct orientation of the cannula.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: November 20, 2018
    Assignee: CARDINAL HEALTH SWITZERLAND 515 GMBH
    Inventor: David Majercak
  • Patent number: 9855155
    Abstract: An improved endoprosthesis with an embodiment that includes a generally cylindrical graft portion that extends along a longitudinal axis to define a flow passage and a plurality of stent hoops. The plurality of stent hoops are connected to the graft portion and disposed in a spaced apart relationship along the longitudinal axis. There is at least a first suture disposed along on the outer surface of the main body. The first suture connects at least two of the spaced apart stent hoops together. The first suture also includes unidirectional barbs (or multidirectional barbs) configured to reduce movement of the main body with respect to a direction of blood flow in an artery.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: January 2, 2018
    Assignee: CARDINAL HEALTH SWITZEERLAND 515 GMBH
    Inventor: David Majercak
  • Publication number: 20160374714
    Abstract: An system for treating arterial occlusive disease with rotating cutting baskets whose outer diameter can be infinitely adjusted to adjust by the operator for precise excision of plaque buildup in the body vessel.
    Type: Application
    Filed: June 26, 2015
    Publication date: December 29, 2016
    Applicant: CORDIS CORPORATION
    Inventors: DAVID MAJERCAK, WENDY ANN YOUNG
  • Publication number: 20160184077
    Abstract: Described are various embodiments of an improved endoprosthesis that includes at least one tubular graft section coupled to additional tubular graft sections which are then coupled to a tubular bifurcated main section. Various embodiments described and shown herein allow for a health care provider to design and select an appropriate AAA implant for AAA presentations other than an infrarenal AAA. The implants can also be utilized for other arterial aneurysms.
    Type: Application
    Filed: December 31, 2014
    Publication date: June 30, 2016
    Applicant: Cordis Corporation
    Inventors: Animesh CHOUBEY, David MAJERCAK
  • Publication number: 20160184076
    Abstract: Described are various embodiments of an improved endoprosthesis that includes at least one tubular graft section coupled to additional tubular graft sections which are then coupled to a tubular bifurcated main section. Various embodiments described and shown herein allow for a health care provider to design and select an appropriate AAA implant for AAA presentations other than an infrarenal AAA.
    Type: Application
    Filed: December 31, 2014
    Publication date: June 30, 2016
    Applicant: CORDIS CORPORATION
    Inventors: Animesh CHOUBEY, David MAJERCAK
  • Publication number: 20160184078
    Abstract: Described are various embodiments of an improved endoprosthesis that includes at least one tubular graft section coupled to additional tubular graft sections which are then coupled to a tubular bifurcated main section. Various embodiments described and shown herein allow for a health care provider to design and select an appropriate AAA implant for AAA presentations other than an infrarenal AAA. The endoprosthesis can also be utilized in other aortic aneurysm.
    Type: Application
    Filed: December 31, 2014
    Publication date: June 30, 2016
    Applicant: CORDIS CORPORATION
    Inventors: Animesh CHOUBEY, David MAJERCAK
  • Publication number: 20160081709
    Abstract: A catheter system and corresponding methods are provided for accessing a blood vessel true lumen from a sub-intimal plane of the vessel. The catheter includes components that are symmetric about the longitudinal axis and allow for reentry without the need to ensure a correct orientation of the cannula.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 24, 2016
    Applicant: Cordis Corporation
    Inventor: David MAJERCAK
  • Publication number: 20150374517
    Abstract: Described are various embodiments of an improved endoprosthesis that includes a generally cylindrical graft portion that extends along a longitudinal axis to define a flow passage and a plurality of stent hoops. The plurality of stent hoops are connected to the graft portion and disposed in a spaced apart relationship along the longitudinal axis. There is at least a first suture disposed along on the outer surface of the main body. The first suture connects at least two of the spaced apart stent hoops together. The first suture also includes unidirectional barbs (or multidirectional barbs) configured to reduce movement of the main body with respect to a direction of blood flow in an artery.
    Type: Application
    Filed: June 26, 2014
    Publication date: December 31, 2015
    Applicant: Cordis Corporation
    Inventor: David MAJERCAK
  • Patent number: 8454673
    Abstract: A balloon catheter or stent delivery system for medical treatment of a patient has a proximal hub, a balloon, and an improved shaft design. The catheter shaft has a rapid-exchange configuration, and a tubular outer body that includes a hypotube extending from the catheter proximal end to a position at or near a proximal leg of the balloon. An inner tubular body defines a guidewire lumen extending from a distal guidewire port at the catheter distal end to a proximal port located at a position between the balloon and the hub. A distal leg of the balloon is directly or indirectly affixed to the inner body, and a proximal leg of the balloon is affixed to the distal end of the outer body. The hypotube has an aperture for accepting the inner body proximal end, and a circumferential cut pattern. The cut pattern adds flexibility, and may extend from the hypotube distal end to a position proximal of the proximal guidewire port.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: June 4, 2013
    Assignee: Cordis Corporation
    Inventors: Laila Al-Marashi, David Grewe, Stephen Griffin, Elaine Lim, David Majercak, Roger Stevens
  • Publication number: 20110034989
    Abstract: A balloon catheter or stent delivery system for medical treatment of a patient has a proximal hub, a balloon, and an improved shaft design. The catheter shaft has a rapid-exchange configuration, and a tubular outer body that includes a hypotube extending from the catheter proximal end to a position at or near a proximal leg of the balloon. An inner tubular body defines a guidewire lumen extending from a distal guidewire port at the catheter distal end to a proximal port located at a position between the balloon and the hub. A distal leg of the balloon is directly or indirectly affixed to the inner body, and a proximal leg of the balloon is affixed to the distal end of the outer body. The hypotube has an aperture for accepting the inner body proximal end, and a circumferential cut pattern. The cut pattern adds flexibility, and may extend from the hypotube distal end to a position proximal of the proximal guidewire port.
    Type: Application
    Filed: October 18, 2010
    Publication date: February 10, 2011
    Applicant: Cordis Corporation
    Inventors: Laila Al-Marashi, David Grewe, Stephen Griffin, Elaine Lim, David Majercak, Roger Stevens
  • Patent number: 7815600
    Abstract: A rapid-exchange balloon catheter or stent delivery system, for medically treating a patient, has a proximal hub, a balloon, and an improved shaft design. The catheter shaft has a tubular outer body that includes a hypotube extending from the catheter proximal end to a position at or near the proximal leg of the balloon. An inner tubular body defines a guidewire lumen and extends from a distal guidewire port at the catheter distal end to proximal guidewire port located between the balloon and the proximal hub. The hypotube has an aperture for accepting the inner body proximal end and a circumferential cut pattern. The cut pattern adds flexibility and may have any desired shape, including a spiral, a helical undulating path, or an overlapping serpentine path with inflection points, for example. The proximal guidewire port may be positioned on or in between the individual portions of the cut pattern.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: October 19, 2010
    Assignee: Cordis Corporation
    Inventors: Laila Al-Marashi, David Grewe, Stephen Griffin, Elaine Lim, David Majercak, Roger Stevens
  • Publication number: 20100094334
    Abstract: A system for the treatment of mitral valve regurgitation by reshaping the mitral valve annulus using one or more plications of annular tissue each fixed by a retaining clip is described. The system includes four devices to achieve such percutaneous direct plication annuloplasty. The first is a prolapsable crossing catheter. Second, a deflecting guide catheter is used to provide a means for guiding the plication device into proper position at the subvalvular region of the mitral valve annulus. The plication device is then used to make plications in the subvalvular region of the mitral valve annulus. Fourth, a formable linear retainer clip is deployed by the plication device in order to retain the plicated tissue in the plicated form. The formable linear retainer is formed into a reverse ā€œCā€ clip by the jaws of the plication device acting in conjunction with a retainer pusher.
    Type: Application
    Filed: January 6, 2009
    Publication date: April 15, 2010
    Inventors: Matthew Krever, Rudolph Cedro, JR., Timothy Lash, David Majercak, Daniel H. Olsen
  • Publication number: 20080147001
    Abstract: A balloon catheter or stent delivery system for medical treatment of a patient has a proximal hub, a balloon, and an improved shaft design. The catheter shaft has a rapid-exchange configuration, and a tubular outer body that includes a hypotube extending from the catheter proximal end to a position at or near a proximal leg of the balloon. An inner tubular body defines a guidewire lumen extending from a distal guidewire port at the catheter distal end to a proximal port located at a position between the balloon and the hub. A distal leg of the balloon is directly or indirectly affixed to the inner body, and a proximal leg of the balloon is affixed to the distal end of the outer body. The hypotube has an aperture for accepting the inner body proximal end, and a circumferential cut pattern. The cut pattern adds flexibility, and may extend from the hypotube distal end to a position proximal of the proximal guidewire port.
    Type: Application
    Filed: January 11, 2008
    Publication date: June 19, 2008
    Inventors: Laila Al-Marashi, David Grewe, Stephen Griffin, Elaine Lim, David Majercak, Roger Stevens
  • Publication number: 20080036113
    Abstract: The present invention relates to a medical device and method of forming the medical device. In particular, the present invention relates to a medical device having a tubular membrane structure over a radially expandable structural frame, and to a method of forming the tubular membrane on the radially expandable structural frame. In one aspect, a structural frame is placed over a spinning mandrel and a fiber is electro-statically spun over at least a portion of the structural frame forming a membrane. A transfer sheath may be used between the mandrel and structural frame to prevent the electro-statically spun fiber from adhering to the mandrel. In another aspect, a first membrane is spun over the mandrel before the structural frame is placed over the mandrel. In this aspect, at least a portion of the structural frame is sandwiched between the membranes. The membrane or membranes and structural frame form a fiber spun frame assembly. The fiber spun frame assembly may be coated with an elastic polymer.
    Type: Application
    Filed: August 21, 2007
    Publication date: February 14, 2008
    Inventors: Iksoo Chun, Mark Roller, David Majercak
  • Publication number: 20070265695
    Abstract: A stent graft device for implanting in a body lumen, comprising a stent with non-staggered or staggered apexes, said stent comprising a plurality of stent sections, bendable connecting members forming said non-staggered or staggered apexes and connecting each of said stent sections to other stent sections to form a zigzag pattern, wherein said stent is staggerdly sutured to a graft by a plurality of suture knots, and wherein said suture knots and staggered apexes are staggered when said stent sections are crimped, and methods of use thereof.
    Type: Application
    Filed: March 15, 2006
    Publication date: November 15, 2007
    Inventor: David Majercak
  • Publication number: 20070255391
    Abstract: This invention relates generally to an expandable intraluminal medical device for use within a body passageway or duct, and more particularly to an optimized stent having flexible links that minimize foreshortening during stent deployment. In one embodiment of the present invention the intraluminal prosthetic device includes a first hoop section, a second hoop section, and one or more flex members attached between the first and the second hoop section. Each flex member comprises two generally longitudinally extending curved segments connected by a circumferentially undulating segment.
    Type: Application
    Filed: September 8, 2004
    Publication date: November 1, 2007
    Inventors: Hikmat Hojeibane, David Majercak, Volker Niermann
  • Publication number: 20070156227
    Abstract: A prosthetic stent graft for the treatment of AAA includes a plurality of graft legs, each secured in a deployed position by a sealing gasket within a stent segment of the sealing gasket and to one side of a framing bracket. The framing bracket traverses the diameter of the stent segment and extends axially away, dividing the first stent segment into two portions, each portion for receiving a graft leg of the stent graft. The sealing gasket can include a stabilizer having a second generally cylindrical stent segment, and an extension bracket traversing the diameter of the second stent segment and extending away from the second stent segment. The extension bracket and the first bracket are connected with one another at a mutual generally central position.
    Type: Application
    Filed: December 30, 2005
    Publication date: July 5, 2007
    Inventors: Isaac Khan, David Majercak, Jin Park, Diana Sanchez