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).
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Publication number: 20220387198Abstract: 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: ApplicationFiled: January 20, 2022Publication date: December 8, 2022Inventor: David MAJERCAK
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Publication number: 20200179144Abstract: 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: ApplicationFiled: March 31, 2016Publication date: June 11, 2020Applicant: Cardinal Health Switzerland 515 GmbhInventor: David Majercak
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Patent number: 10357275Abstract: 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: GrantFiled: June 26, 2015Date of Patent: July 23, 2019Assignee: CARDINAL HEALTH SWITZERLAND 515 GMBHInventors: David Majercak, Wendy Ann Young
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Patent number: 10130384Abstract: 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: GrantFiled: September 23, 2014Date of Patent: November 20, 2018Assignee: CARDINAL HEALTH SWITZERLAND 515 GMBHInventor: David Majercak
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Patent number: 9855155Abstract: 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: GrantFiled: June 26, 2014Date of Patent: January 2, 2018Assignee: CARDINAL HEALTH SWITZEERLAND 515 GMBHInventor: David Majercak
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Publication number: 20160374714Abstract: 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: ApplicationFiled: June 26, 2015Publication date: December 29, 2016Applicant: CORDIS CORPORATIONInventors: DAVID MAJERCAK, WENDY ANN YOUNG
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Publication number: 20160184077Abstract: 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: ApplicationFiled: December 31, 2014Publication date: June 30, 2016Applicant: Cordis CorporationInventors: Animesh CHOUBEY, David MAJERCAK
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Publication number: 20160184076Abstract: 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: ApplicationFiled: December 31, 2014Publication date: June 30, 2016Applicant: CORDIS CORPORATIONInventors: Animesh CHOUBEY, David MAJERCAK
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Publication number: 20160184078Abstract: 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: ApplicationFiled: December 31, 2014Publication date: June 30, 2016Applicant: CORDIS CORPORATIONInventors: Animesh CHOUBEY, David MAJERCAK
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Publication number: 20160081709Abstract: 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: ApplicationFiled: September 23, 2014Publication date: March 24, 2016Applicant: Cordis CorporationInventor: David MAJERCAK
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Publication number: 20150374517Abstract: 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: ApplicationFiled: June 26, 2014Publication date: December 31, 2015Applicant: Cordis CorporationInventor: David MAJERCAK
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Patent number: 8454673Abstract: 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: GrantFiled: October 18, 2010Date of Patent: June 4, 2013Assignee: Cordis CorporationInventors: Laila Al-Marashi, David Grewe, Stephen Griffin, Elaine Lim, David Majercak, Roger Stevens
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Publication number: 20110034989Abstract: 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: ApplicationFiled: October 18, 2010Publication date: February 10, 2011Applicant: Cordis CorporationInventors: Laila Al-Marashi, David Grewe, Stephen Griffin, Elaine Lim, David Majercak, Roger Stevens
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Patent number: 7815600Abstract: 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: GrantFiled: January 11, 2008Date of Patent: October 19, 2010Assignee: Cordis CorporationInventors: Laila Al-Marashi, David Grewe, Stephen Griffin, Elaine Lim, David Majercak, Roger Stevens
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Publication number: 20100094334Abstract: 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 āCā clip by the jaws of the plication device acting in conjunction with a retainer pusher.Type: ApplicationFiled: January 6, 2009Publication date: April 15, 2010Inventors: Matthew Krever, Rudolph Cedro, JR., Timothy Lash, David Majercak, Daniel H. Olsen
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Publication number: 20080147001Abstract: 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: ApplicationFiled: January 11, 2008Publication date: June 19, 2008Inventors: Laila Al-Marashi, David Grewe, Stephen Griffin, Elaine Lim, David Majercak, Roger Stevens
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Publication number: 20080036113Abstract: 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: ApplicationFiled: August 21, 2007Publication date: February 14, 2008Inventors: Iksoo Chun, Mark Roller, David Majercak
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Publication number: 20070265695Abstract: 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: ApplicationFiled: March 15, 2006Publication date: November 15, 2007Inventor: David Majercak
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Publication number: 20070255391Abstract: 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: ApplicationFiled: September 8, 2004Publication date: November 1, 2007Inventors: Hikmat Hojeibane, David Majercak, Volker Niermann
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Publication number: 20070156227Abstract: 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: ApplicationFiled: December 30, 2005Publication date: July 5, 2007Inventors: Isaac Khan, David Majercak, Jin Park, Diana Sanchez