Patents by Inventor Siddharth Vad
Siddharth Vad 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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Patent number: 9855129Abstract: The present embodiments provide stent-grafts. In one embodiment, a stent has proximal and distal ends, a plurality of strut segments disposed between the proximal and distal ends that enable expansion of the stent from a compressed state to a deployed state, and a series of distal apices disposed at the distal end of the stent. At least a portion of a first distal apex overlaps with graft material. First and second sutures are each coupled between a portion of the first distal apex and the graft material. The first and second sutures are positioned at different longitudinal zones that lack an axial overlap with one another.Type: GrantFiled: October 24, 2013Date of Patent: January 2, 2018Assignee: COOK MEDICAL TECHNOLOGIES LLCInventors: Michael P. DeBruyne, Siddharth Vad
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Patent number: 9827121Abstract: A deployment handle for an expandable medical device, a handle having a proximal end, a distal end, and a lumen/passageway extending between the proximal and distal ends; an inner cannula; and a tension mechanism located inside the handle and secured to the inner cannula so that the inner cannula rotates when the tension mechanism is actuated.Type: GrantFiled: March 12, 2014Date of Patent: November 28, 2017Assignee: Cook Medical Technologies LLCInventor: Siddharth Vad
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Publication number: 20170252193Abstract: The present embodiments provide systems and methods for deploying at least a portion of a stent, comprising a retaining member having a main body. At least one slot is formed into the main body. The at least one slot comprises a circumferentially enclosed segment and an axial opening. A portion of a stent is restrained from moving radially outward when disposed within the circumferentially enclosed segment, and the portion of the stent is self-expandable radially outward when aligned with the axial opening.Type: ApplicationFiled: May 22, 2017Publication date: September 7, 2017Applicant: COOK MEDICAL TECHNOLOGIES LLCInventor: Siddharth Vad
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Publication number: 20170216067Abstract: The present embodiments provide systems and methods for deploying at least a portion of a stent. In one embodiment, the system comprises a cannula having an outer surface, and an auger having a plurality of turns coupled to the outer surface of the cannula. A stent has a portion dimensioned to be disposed within a valley of the auger. Rotation of the cannula and the auger advances the portion of the stent in a predetermined longitudinal direction.Type: ApplicationFiled: April 14, 2017Publication date: August 3, 2017Applicant: COOK MEDICAL TECHNOLOGIES LLCInventors: Johnny LeBlanc, William J. Havel, Siddharth Vad
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Patent number: 9687373Abstract: The present embodiments provide systems and methods for deploying at least a portion of a stent, comprising a retaining member having a main body. At least one slot is formed into the main body. The at least one slot comprises a circumferentially enclosed segment and an axial opening. A portion of a stent is restrained from moving radially outward when disposed within the circumferentially enclosed segment, and the portion of the stent is self-expandable radially outward when aligned with the axial opening.Type: GrantFiled: December 13, 2013Date of Patent: June 27, 2017Assignee: COOK MEDICAL TECHNOLOGIES LLCInventor: Siddharth Vad
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Patent number: 9675481Abstract: A hybrid prosthesis for deployment in a body vessel includes a tubular stent body comprising a wire comprising a shape memory alloy, where the tubular stent body has a self-expanding portion comprising a distal portion of the wire and a balloon-expandable portion comprising a proximal portion of the wire. The shape memory alloy comprises an Af of less than 37° C. in the self-expanding portion and an As of greater than 37° C. in the balloon-expandable portion.Type: GrantFiled: October 22, 2014Date of Patent: June 13, 2017Assignee: Cook Medical Technologies LLCInventor: Siddharth Vad
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Patent number: 9655756Abstract: The present embodiments provide systems and methods for deploying at least a portion of a stent. In one embodiment, the system comprises a cannula having an outer surface, and an auger having a plurality of turns coupled to the outer surface of the cannula. A stent has a portion dimensioned to be disposed within a valley of the auger. Rotation of the cannula and the auger advances the portion of the stent in a predetermined longitudinal direction.Type: GrantFiled: December 13, 2013Date of Patent: May 23, 2017Assignee: COOK MEDICAL TECHNOLOGIES LLCInventors: Johnny LeBlanc, William J. Havel, Siddharth Vad
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Patent number: 9629733Abstract: The present embodiments provide a method for delivering a stent comprising providing a stent in a delivery state, where the stent comprises a plurality of interconnected strut segments that enable expansion of the stent from a delivery state to a deployed state. Stacking a frontal surface of a first strut segment at least partially behind a rear surface of a second strut segment in the delivery state. Aligning a sharpened tip of a first barb at least partially circumferentially behind at least one strut segment in the delivery state such that the sharpened tip is not radially exposed. Expanding the stent from the delivery state to a deployed state, wherein the first barb is exposed to a patient in the deployed state.Type: GrantFiled: December 15, 2015Date of Patent: April 25, 2017Assignee: Cook Medical Technologies LLCInventors: Blayne A. Roeder, Siddharth Vad
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Patent number: 9585773Abstract: The present embodiments provide a method for delivering a stent comprising providing a stent in a delivery state, where the stent comprises a plurality of interconnected strut segments that enable expansion of the stent from a delivery state to a deployed state. Stacking a frontal surface of a first strut segment at least partially behind a rear surface of a second strut segment in the delivery state. Aligning a sharpened tip of a first barb at least partially circumferentially behind at least one strut segment in the delivery state such that the sharpened tip is not radially exposed. Expanding the stent from the delivery state to a deployed state, wherein the first barb is exposed to a patient in the deployed state.Type: GrantFiled: December 15, 2015Date of Patent: March 7, 2017Assignee: Cook Medical Technologies LLCInventors: Blayne A. Roeder, Siddharth Vad
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Publication number: 20170056166Abstract: A valve prosthesis can be configured to be deployed within a native heart valve and prevent axial flow of fluid around an exterior of the prosthesis. The prosthesis can include an expandable frame configured to radially expand and contract for deployment within the native heart valve, a flap assembly positioned around an exterior of the expandable frame, a proximal end of the flap assembly being positioned at or proximate a proximal end of the expandable frame. In some embodiments, the flap assembly can extend outward from the frame and have an expanded configuration configured to create a barrier to fluid flow exterior to the frame when deployed within the native heart valve.Type: ApplicationFiled: August 25, 2016Publication date: March 2, 2017Applicant: Edwards Lifesciences CardiAQ LLCInventors: J. Brent Ratz, Luca Pesce, Siddharth Vad, Garrett Dallas Johnson
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Publication number: 20160338864Abstract: A delivery system for delivering an endovascular prosthesis is disclosed. A prosthesis is releasably coupled to a proximal end of the system. A handle assembly is disposed at the distal end of the delivery system. The handle assembly comprises a main handle and a second handle disposed at least partially on the main handle and longitudinally moveable relative to the main handle. A trigger wire release mechanism is disposed in the interior or the main handle. A sheath is operatively connected to the second handle and longitudinal movement of the second handle relative to the main handle retracts the sheath in a distal direction. Movement of the trigger wire release mechanism from a first position to a second deployed position is prevented when the sheath is in the first position. Methods for accessing the common and internal iliac arteries and delivering and deploying an endovascular graft therein using the delivery system and handle assembly are also disclosed.Type: ApplicationFiled: May 17, 2016Publication date: November 24, 2016Applicant: COOK MEDICAL TECHNOLOGIES LLCInventors: Siddharth Vad, James A. Teague
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Publication number: 20160317301Abstract: Devices, systems and methods are described herein a prosthesis for implantation within a lumen or body cavity and delivery systems for delivering the prosthesis to a location for implantation. A delivery system can include a plurality of components, including a flexible nose cone, multi-layer sheath, and pre-compressed shaft, which can be moveable relative to each other.Type: ApplicationFiled: April 28, 2016Publication date: November 3, 2016Applicant: Edwards Lifesciences CardiAQ LLCInventors: Arshad Quadri, J. Brent Ratz, Yen Liao, Julio Cesar Sanchez, Alexander H. Cooper, Glen T. Rabito, Siddharth Vad, Luca Pesce, Kevin M. Stewart, David Robert Landon
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Publication number: 20160262919Abstract: A delivery device and methods for deploying an endovascular prosthesis within the common and internal iliac arteries are described. The device comprises a pusher catheter having a proximal end and a pusher extension extending proximally therefrom. A tubular prosthesis having a side branch is releasably coupled to the pusher extension. An extension dilator extends proximally from the proximal end of the pusher catheter, extends at least partially along an external surface of the main tubular body, into a distal end of the side branch and exits a proximal end of the tubular prosthesis. The extension dilator can be tracked over a guide wire which serves to both position the device within a vessel and also to facilitate cannulation of an internal iliac artery.Type: ApplicationFiled: February 16, 2016Publication date: September 15, 2016Applicant: COOK MEDICAL TECHNOLOGIES LLCInventors: Joel Ondersma, Blayne A. Roeder, Edwin E. Macatangay, Siddharth Vad, Davorin K. Skender
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Publication number: 20160184117Abstract: The present invention relates to a prosthesis delivery device and to a handle assembly at the distal end of the delivery device. The handle assembly comprises a main handle and a nut disposed on the main handle. The nut comprises a first configuration in which the nut is engaged with the outer surface of the main handle and a second configuration in which the nut is disengaged from the outer surface of the main handle. Disengaging the nut from the main handle facilitates quick sheath retraction and deployment of at least the distal end of the prosthesis as well as recapturing the proximal end of the device within the sheath.Type: ApplicationFiled: December 17, 2015Publication date: June 30, 2016Applicant: COOK MEDICAL TECHNOLOGIES LLCInventors: Siddharth Vad, Edwin Macatangay
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Publication number: 20160175132Abstract: A pre-loaded stent graft delivery device having a guide wire catheter and a handle including a multi-port manifold with access ports, where an access sheath extends from each access port. A sheath is disposed coaxially around the guide wire catheter and includes two splits that enable the retraction of the sheath while the access sheaths are disposed within the respective access port of the manifold.Type: ApplicationFiled: December 14, 2015Publication date: June 23, 2016Inventors: Kevin Wilger, Jarin Kratzberg, Rick Hadley, Siddharth Vad, Brandon Davis, Ryan Bradway
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Publication number: 20160175131Abstract: The present embodiments provide system and methods for deploying an endoluminal prosthesis. In one example, the system comprises a sheath, and a stent-graft disposed within the sheath in a delivery state. A pusher having proximal and distal sections is disposed at least partially within the sheath in the delivery state. An orientation marker is disposed on the pusher. The orientation marker extends less than 360 degrees around a circumference of the pusher.Type: ApplicationFiled: December 10, 2015Publication date: June 23, 2016Applicant: COOK MEDICAL TECHNOLOGIES LLCInventor: Siddharth Vad
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Publication number: 20160175128Abstract: An introducer for an endoluminal prosthesis and a methods for delivering a prosthesis within a body vessel are described. The introducer comprises pusher catheter having a lumen extending therethrough, the lumen being in communication with an opening formed in the sidewall of the pusher. A sheath is disposed over the pusher catheter and also has an opening formed in its sidewall. The sheath is longitudinally movable relative to the pusher catheter between a prosthesis delivery position and a prosthesis deployment position. When the sheath is in the deployment position, the opening formed in the sidewall of the pusher catheter is at least partially longitudinally aligned with the opening formed in the sidewall of the sheath. A wire may extend though the opening in the sheath, the opening in the pusher, through the lumen of the pusher and through a fenestration in a prosthesis to cannulate a branch vessel.Type: ApplicationFiled: December 22, 2015Publication date: June 23, 2016Inventors: Nuno Diaz, Blayne A. Roeder, Siddharth Vad, Stephan Haulon
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Patent number: 9364355Abstract: The present embodiments provide systems and methods for deploying at least a portion of a stent. In one embodiment, the system comprises a cannula having an outer surface, and a coiled member having proximal and distal ends and a plurality of turns disposed therebetween. At least a portion of the coiled member is secured to the outer surface of the cannula. A stent is releasably secured to a portion of the coiled member. A protective cage may encircle the coiled member.Type: GrantFiled: March 12, 2013Date of Patent: June 14, 2016Assignee: COOK MEDICAL TECHNOLOGIES LLCInventors: Tony C. Hopkins, Siddharth Vad, Michael P. DeBruyne, Zachary Wagner, Blayne A. Roeder, William J. Havel, Jarin Kratzberg, Rick Hadley
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Publication number: 20160158050Abstract: A prosthesis delivery device and method of using the same is described. The delivery device comprises a rotatable inner cannula extending from a proximal end to a distal end with a prosthesis releasably coupled to the proximal end. A delivery handle assembly is disposed at the distal end of the delivery device. The handle comprises a first handle disposed about the inner cannula, a rotary dial rotatably disposed about a distal end of the first handle and a second handle disposed about at least a portion of the distal end of the first handle. The second handle is longitudinally moveable relative to the first handle between a first position wherein the sheath is coaxially disposed about the prosthesis and rotation of the rotary dial is prevented, and a second position wherein the sheath is retracted distally to expose at least a portion of the prosthesis and rotation of the dial is permitted.Type: ApplicationFiled: December 3, 2015Publication date: June 9, 2016Applicant: Cook Medical Technologies LLCInventors: Eugene E. Skelton, Anthony Wright, Blayne A. Roeder, Edwin E. Macatangay, Michael P. DeBruyne, Siddharth Vad, Natalie Jones, Wen Hong Neoh, Erik Hughes
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Patent number: 9351860Abstract: The present embodiments provide systems and methods for loading a stent or stent graft onto an introducer for intraluminal deployment. In one example, a system includes an endoluminal prosthesis introducer comprising a stent retaining member engageable with a stent end. The system may also include a loading tool for engaging the stent end on the stent retaining member. The loading tool may include a loading body having a passage extending from a first end to a second end and a slot that extends through the tubular loading body from the passage to an outer surface of the tubular loading body, and the slot may further extend from the second end toward the first end. The stent retaining member may be disposed at least partially within the passage of the loading body, and the slot of the loading body may be rotatable around the stent retaining member.Type: GrantFiled: March 14, 2013Date of Patent: May 31, 2016Assignee: Cook Medical Technologies LLCInventors: Siddharth Vad, Rick Hadley