Patents Assigned to VASCULAR ARCHITECTS, INC., a Delaware corporation
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Publication number: 20070068274Abstract: Apparatus tests the durability of a peripheral artery medical device based upon anatomical loading conditions. A peripheral artery medical device is mounted to a support element, typically a hollow tube, having first and second end portions. End holding elements are mounted to a base and are secured to the first and second end portions. The apparatus further comprises means for applying a plurality of cycles of at least one of the following loading conditions to the medical device support element at the location of the peripheral artery medical device: torsion, tension/compression, bending and pinching. In some embodiments the apparatus comprises an environmental chamber housing at least the support element so to mimic the service temperature environment of the medical device. A method for testing the durability of a peripheral artery medical device based upon anatomical loading conditions is also disclosed.Type: ApplicationFiled: February 28, 2006Publication date: March 29, 2007Applicant: VASCULAR ARCHITECTS, INC., a Delaware CorporationInventors: Jonathan Olson, Peter Rosario, Donald Cabaluna, Guruswami Ravichandran, George Hermann, Marshall Tsuruda
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Publication number: 20060246210Abstract: A stent, having openings, is mounted onto a mandrel. An agent-containing film is applied onto the stent and the two are pressed against one another so that at least a portion of the film is pressed at least partially into the openings. The film is adhered to the stent. Any excess film is removed to create a stent/film combination which is removed from the mandrel and enclosed within a sleeve of porous material to create a covered agent-eluting stent.Type: ApplicationFiled: April 29, 2005Publication date: November 2, 2006Applicant: VASCULAR ARCHITECTS INC., a Delaware CorporationInventors: Kobi Iki, Marshall Tsuruda, Teodoro Tecson, Angelica Alvarado, Jasbir Badesha
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Publication number: 20060235449Abstract: A vascular lining removal assembly comprises a plurality of slats, each having inner and outer surfaces, configured to pass along a vascular cleavage plane to removingly engage a length of vascular lining. In some embodiments the assembly may also include means for engaging the length of vascular lining to aid removal of the length of vascular lining. The inner surface of at least one of the slats may comprise an inwardly opening passageway to permit direct access to the length of vascular lining by a tool.Type: ApplicationFiled: April 19, 2005Publication date: October 19, 2006Applicant: Vascular Architects, Inc., a Delaware CorporationInventors: Peter Schubart, Gordon Stokes, D. Modesitt, Ted Thorson
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Publication number: 20060173481Abstract: A ring stripper comprises a shaft and a tissue separator ring joined to the distal end of the shaft at a junction. A tissue dissecting element extends from the junction and has a leading surface with at least a portion of the leading surface being located distally of the ring. The tissue dissecting element may, and preferably does, extend along the shaft axis. The ring stripper may also include means for enhancing tissue dissection of the tissue dissecting element, such as by mechanically vibrating or reciprocating or otherwise moving at least the leading surface of the dissecting element or by heating the tissue to be dissected, or a combination thereof.Type: ApplicationFiled: February 3, 2005Publication date: August 3, 2006Applicant: VASCULAR ARCHITECTS, INC., a Delaware CorporationInventor: Ted Thorson
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Publication number: 20060136035Abstract: A coiled endoluminal prosthesis system may include means for rotating a delivery catheter while axially releasing a coiled endoluminal prosthesis from the delivery catheter. A release element may be retracted simultaneously with rotation of the delivery catheter. The coiled endoluminal prosthesis may have a first direction of spiral in a first rotational direction. The delivery catheter may be rotated in a second rotational direction while axially releasing the coiled endoluminal prosthesis from the delivery catheter. The endoluminal prosthesis may be configured to reduce or eliminate any difference between the length of the endoluminal prosthesis when in the reduced diameter state and when in the expanded diameter state.Type: ApplicationFiled: July 5, 2005Publication date: June 22, 2006Applicant: VASCULAR ARCHITECTS, INC. a Delaware CorporationInventors: George Hermann, Jonathan Olson, Marshall Tsuruda, D. Modesitt, Peter Rosario, Donald Cabaluna, Guruswami Ravichandran
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Publication number: 20060058870Abstract: A covered stent includes a generally tubular stent body having inner and outer stent body surfaces. A sleeve of porous material encloses the stent body and has inner and outer portions opposed to the inner and outer stent body surfaces. A therapeutic agent is located along the stent body, the agent being diffusible through the material. A diffusion barrier is located between the inner material portion and the agent along the stent. The diffusion barrier prevents passage of at least a significant amount the agent through the inner portion of the sleeve of porous material. A diffusion restrictor is located between the outer portion of the sleeve of porous material and the agent along the stent. The diffusion restrictor permits passage of the agent through the inner material portion at a therapeutic level.Type: ApplicationFiled: September 14, 2004Publication date: March 16, 2006Applicant: VASCULAR ARCHITECTS, INC., a Delaware CorporationInventors: Kobi Iki, Marshall Tsuruda
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Publication number: 20060058869Abstract: A coiled ladder stent comprises first and second rails and rungs connecting the rails. At least one rung has lower strength portion or is an enhanced flexibility rung, or both. The lower strength portion is positioned at a reduced strength fracture location along the rung so to promote any fracture of the ladder stent at the fracture location along the rung to help prevent fracture of a rail. One way to make the lower strength portion is to make the cross-sectional area of the lower strength portion less than the average cross-sectional area of the rung. The enhanced flexibility aspect helps to accommodate relative movement between the first and second rails. Doing so helps to prevent fracture of the rails and rungs. In some embodiments of the invention the enhanced flexibility rung comprises one or more nonlinear, such as generally S-shaped or generally U-shaped, portions.Type: ApplicationFiled: September 14, 2004Publication date: March 16, 2006Applicant: VASCULAR ARCHITECTS, INC., a Delaware CorporationInventors: Jonathan Olson, Peter Rosario, Guruswami Ravichandran, Marshall Tsuruda
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Publication number: 20040153142Abstract: A coiled stent (196) has a coiled stent body with a main body portion (106) and end portions (108). The end portions may be substantially less stiff than the body portion to help prevent tissue trauma. A graft material (124) may be used to cover at least the main body portion to create a coiled stent graft (122) in which adjacent turns (128) have gaps defined therebetween to create a generally helical gap (130). The coiled stent may have side elements (10) separated by connector elements (112) and be placeable in a contracted, reduced diameter state and in a relaxed, expanded diameter state. The connector elements are preferably generally parallel to the stent axis when placed in the contracted, reduced-diameter state, typically tightly wrapped around a placement catheter (136).Type: ApplicationFiled: December 9, 2003Publication date: August 5, 2004Applicant: VASCULAR ARCHITECTS, INC., A Delaware corporationInventors: Katherine J. Klumb, Thomas J. Fogarty, Kirti P. Kamdar, Bradley B. Hill
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Publication number: 20030225444Abstract: An endoluminal prosthesis includes a coiled body and a graft material covering at least part of the coiled body to create a coiled stent graft. The average stent graft diameter to turns width ratio may be about 0.8 to 1 to about 2.4 to 1 when expanded.Type: ApplicationFiled: December 3, 2002Publication date: December 4, 2003Applicant: VASCULAR ARCHITECTS, INC., a Delaware corporationInventors: Katherine J. Klumb, Thomas J. Fogarty, Kirti P. Kamdar, Bradley B. Hill