Patents by Inventor David A. Rezac
David A. Rezac 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: 20190105478Abstract: Systems and methods for implanting an endovascular shunt in a patient is disclosed. The system having an expandable anchor configured for being deployed in a dural venous sinus of a patient at a location distal to a curved portion of a wall of an inferior petrosal sinus (IPS) of the patient; an elongate guide member coupled to, and extending proximally from, the anchor; a shunt delivery catheter having a first lumen configured to receive the guide member, and a second lumen extending between respective proximal and distal openings in the shunt delivery catheter, the shunt delivery catheter further having a penetrating element coupled to a distal end of the catheter; and the system further having a guard at least partially disposed over, and movable relative to, the penetrating element.Type: ApplicationFiled: December 6, 2018Publication date: April 11, 2019Applicant: CereVasc, LLCInventors: Adel M. Malek, Carl Heilman, David A. Rezac, Jack B. Sattell, Anthony Maiorano
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Publication number: 20190083750Abstract: A catheter steering assembly for steering a sheath catheter of an intravascular catheter system includes a first pull wire, a steering member, a first drive member, and a first pulley gear. The first pull wire is connected to the sheath catheter. The steering member rotates about an axis. The first drive member has a first drive member proximal end and a first drive member distal end. The first drive member distal end engages the steering member so that rotation of the steering member rotates the first drive member. The first pulley gear is coupled to the first pull wire. The first pulley gear engages the first drive member proximal end so that rotation of the first drive member rotates the first pulley gear and moves the first pull wire in a direction that is substantially parallel to the axis to articulate the sheath catheter.Type: ApplicationFiled: August 14, 2018Publication date: March 21, 2019Inventor: David A. Rezac
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Publication number: 20190021750Abstract: This disclosure relates to systems, devices, and methods for removing clots, e.g., calcified clots, from a blood vessel and/or for removing a calcified clot from a blood vessel wall. The devices include an elongated tubular body including a wall surrounding a central lumen and having proximal and distal ends. The tubular body includes at least one set of two, three, or more elongated cuts through the wall to form a clot engaging member having two, three, or more ribs between the cuts, wherein a first set of elongated cuts is arranged adjacent to the distal end of the body, and wherein the clot engaging member is made of an elastic material configured to cause the ribs to self-expand radially outwardly from the tubular body when the body is in a non-constrained, deployed configuration.Type: ApplicationFiled: December 29, 2016Publication date: January 24, 2019Applicant: Cerevasc, LLCInventors: Carl Heilman, Adel M. Malek, David A. Rezac
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Publication number: 20180289466Abstract: A system for applying a fiber matrix on a tubular member is provided. A mandrel, configured for atraumatic placement within the tubular member, is included. Methods for atraumatic placement of a mandrel into a tubular member are also provided.Type: ApplicationFiled: December 15, 2017Publication date: October 11, 2018Inventors: Lorenzo SOLETTI, Mohammed S. EL-Kurdi, Jon Mcgrath, J. Christopher Flaherty, Liem Vu, Jerry Brightbill, Stephen Evans, Joseph Ting, David Rezac, Timothy Robinson
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Publication number: 20180264240Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.Type: ApplicationFiled: May 16, 2018Publication date: September 20, 2018Applicant: CEREVASC, LLCInventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
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Publication number: 20180256866Abstract: Systems and methods for implanting an endovascular shunt in a patient is disclosed. The system having an expandable anchor configured for being deployed in a dural venous sinus of a patient at a location distal to a curved portion of a wall of an inferior petrosal sinus (IPS) of the patient; an elongate guide member coupled to, and extending proximally from, the anchor; a shunt delivery catheter having a first lumen configured to receive the guide member, and a second lumen extending between respective proximal and distal openings in the shunt delivery catheter, the shunt delivery catheter further having a penetrating element coupled to a distal end of the catheter; and the system further having a guard at least partially disposed over, and movable relative to, the penetrating element.Type: ApplicationFiled: May 16, 2018Publication date: September 13, 2018Applicant: CereVasc, LLCInventors: Adel M. Malek, Carl Heilman, David A. Rezac, Jack B. Sattell, Anthony Maiorano
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Patent number: 10058686Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.Type: GrantFiled: January 4, 2018Date of Patent: August 28, 2018Assignee: CEREVASC, LLCInventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
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Publication number: 20180207412Abstract: Systems and methods for implanting an endovascular shunt in a patient is disclosed. The system having an expandable anchor configured for being deployed in a dural venous sinus of a patient at a location distal to a curved portion of a wall of an inferior petrosal sinus (IPS) of the patient; an elongate guide member coupled to, and extending proximally from, the anchor; a shunt delivery catheter having a first lumen configured to receive the guide member, and a second lumen extending between respective proximal and distal openings in the shunt delivery catheter, the shunt delivery catheter further having a penetrating element coupled to a distal end of the catheter; and the system further having a guard at least partially disposed over, and movable relative to, the penetrating element.Type: ApplicationFiled: October 28, 2016Publication date: July 26, 2018Applicant: CereVasc, LLCInventors: Adel M. Malek, Carl Heilman, David A. Rezac, Jack B. Sattell, Anthony Maiorano
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Publication number: 20180126132Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.Type: ApplicationFiled: January 4, 2018Publication date: May 10, 2018Applicant: CEREVASC, LLCInventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
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Publication number: 20180015267Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.Type: ApplicationFiled: August 3, 2017Publication date: January 18, 2018Applicant: CEREVASC, LLCInventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
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Patent number: 9867690Abstract: A system for applying a fiber matrix on a tubular member is provided. A mandrel, configured for atraumatic placement within the tubular member, is included. Methods for atraumatic placement of a mandrel into a tubular member are also provided.Type: GrantFiled: February 8, 2012Date of Patent: January 16, 2018Assignee: NEOGRAFT TECHNOLOGIES, INC.Inventors: Lorenzo Soletti, Mohammed S. El-Kurdi, Jon McGrath, J. Christopher Flaherty, Liem Vu, Jerry Brightbill, Stephen Evans, Joseph Ting, David Rezac, Timothy Robinson
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Patent number: 9750968Abstract: Provided is an articulating bench configured to support a user, comprising a longitudinally-extending frame structure pivotably supporting back-supporting and independently-pivotable leg supporting portions. Removable arm supporting portions may be provided that pivot about the back supporting portion. In various example embodiments the articulating bench structure may be foldable for compact storage. Various adjustment mechanisms and methods of use are disclosed.Type: GrantFiled: April 19, 2016Date of Patent: September 5, 2017Assignee: SDAYETPG LLCInventors: Andrew Heimann, David Rezac, Jeffrey Cerier, Amos Cruz, Jonathan O'Keefe, Nicholas Trepkowski
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Patent number: 9724501Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.Type: GrantFiled: February 14, 2017Date of Patent: August 8, 2017Assignee: CEREVASC, LLCInventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
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Publication number: 20170157375Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.Type: ApplicationFiled: February 14, 2017Publication date: June 8, 2017Inventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
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Patent number: 9669195Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.Type: GrantFiled: October 10, 2016Date of Patent: June 6, 2017Assignee: CereVasc, LLCInventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
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Patent number: 9662479Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.Type: GrantFiled: June 28, 2016Date of Patent: May 30, 2017Assignee: CereVasc, LLCInventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
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Publication number: 20170105746Abstract: Apparatus for performing a minimally-invasive procedure, the apparatus comprising: a tool comprising: a shaft having a distal end and a proximal end; a handle attached to the proximal end of the shaft; and an end effector attached to the distal end of the shaft; wherein the shaft comprises a flexible portion extending distally from the proximal end of the shaft, and an articulating portion extending proximally from the distal end of the shaft, and wherein the articulating portion comprises a flexible spine; wherein a plurality of articulation cables extend through the shaft from the handle to the flexible spine, such that when tension is applied to at least one of the plurality of articulation cables, the flexible spine bends; wherein a rotatable element extends through the shaft from the handle to the end effector, such that when the rotatable element is rotated, the end effector rotates; and wherein an actuation element extends through the shaft from the handle to the end effector, such that when the actuatType: ApplicationFiled: October 20, 2016Publication date: April 20, 2017Inventors: Jonathan O'Keefe, Jeffrey Cerier, Amos Cruz, David Rezac
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Publication number: 20170021146Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.Type: ApplicationFiled: October 10, 2016Publication date: January 26, 2017Inventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
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Patent number: 9545505Abstract: Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.Type: GrantFiled: June 28, 2016Date of Patent: January 17, 2017Assignee: CEREVASC, LLCInventors: Carl Heilman, Adel M. Malek, David A. Rezac, Timothy W. Robinson, Joseph Ting
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Patent number: D806244Type: GrantFiled: October 8, 2015Date of Patent: December 26, 2017Assignee: Nordson CorporationInventors: David A. Rezac, Keith D. Boudreau, Alan Fortunate, Glenn Horner