Patents by Inventor Joshua Brenizer
Joshua Brenizer 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: 20230390552Abstract: Guidewires and methods for transmitting electrical stimuli to a heart and for guiding and supporting the delivery of elongate treatment devices within the heart are disclosed. A guidewire can comprise an elongate body, including first and second elongate conductors, and at least first and second electrodes. A distal end portion of the elongate body can include a preformed bias shape, such as a pigtail-shaped region, on which the first and second electrodes can be located. The preformed bias shape can optionally be non-coplanar relative to an intermediate portion of the elongate body. The first and second elongate conductors can be formed of a single structure or two or more electrically connected structures. The conductors can extend from proximal end portions to distal end portions that electrically connect to the first and second electrodes.Type: ApplicationFiled: August 10, 2023Publication date: December 7, 2023Applicants: Teleflex Life Sciences Limited, Cardiac Interventions and Aviation LLCInventors: David Daniels, Chad Kugler, John Bridgeman, Derek Stratton, Dean Peterson, Joshua Brenizer
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Patent number: 11752307Abstract: This patent document discloses accessory devices and associated methods for catheter and guidewire management in a surgical setting. Implementations can include an accessory device having a manually deformable body that includes proximal and distal surfaces. The body may further define at least first and second apertures, each aperture extending through the body. The first aperture can be engageable with a proximal end portion of a first elongate medical device, and the second aperture can be configured to receive a second elongate medical device. The body can be slidable along the proximal end portion of the first elongate medical device and/or the second elongate medical device, and the proximal surface of the body may include a funnel leading into the first aperture, the second aperture, or both. The body may be incorporated into, or attached to, a proximal side of a hemostasis valve utilized for a medical operation.Type: GrantFiled: January 21, 2021Date of Patent: September 12, 2023Assignee: Teleflex Life Sciences LimitedInventors: Christopher E. Buller, Joshua Brenizer
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Publication number: 20230270990Abstract: This patent document discloses devices and associated methods for catheter and guidewire management in a surgical setting. Implementations can include a hemostasis valve configured to prevent the backflow of blood during a medical procedure. The hemostasis valve can have a valve body defining an inner lumen extending from a proximal end of the body to a distal end of the body. The inner lumen can be configured to accommodate passage of one or more elongate interventional devices therethrough. An interventional device management component can be positioned at the proximal end of the valve body. The interventional device management component can comprise a body defining a first seal member lumen configured to receive a first elongate interventional device and a second seal member lumen configured to receive a second elongate interventional device. A narrow slit configured to receive a guidewire can connect the seal member lumens.Type: ApplicationFiled: December 19, 2022Publication date: August 31, 2023Applicant: Teleflex Life Sciences LimitedInventors: Christopher E. Buller, Joshua Brenizer
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Patent number: 11712544Abstract: Guide extension catheters and related methods are disclosed. A guide extension catheter can comprise an elongate tube member and a lumenless push member. The push member can be eccentrically coupled to the tube member for slidably positioning the tube member within and partially beyond a distal end of a guide catheter. At least a proximal end portion of the push member can include a cross-section defined by an arcuate first surface and an opposing second surface. The first surface can engage an inner wall surface of the guide catheter along an arc length, and the second surface can be spaced furthest from the first surface at its center point. The first surface can have the same or substantially the same radius of curvature as the guide catheter's inner wall surface, and the second surface can be flat or substantially flat. This configuration of the push member can provide an advantageous blend of stiffness and flexibility, as well as space conservation through the guide catheter.Type: GrantFiled: July 10, 2020Date of Patent: August 1, 2023Assignee: Teleflex Life Sciences LimitedInventors: Joshua Brenizer, Dean Peterson
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Publication number: 20230028504Abstract: This patent document discloses perfusion catheters and related methods for treating blood vessel lesions and abnormalities. A perfusion catheter can include an inflatable balloon, an elongate shaft operably attached to the balloon, and an optional containment structure surrounding at least a portion of the balloon. The balloon can be inflated until its outer surface contacts a wall of a blood vessel. When inflated, the balloon's inner surface defines a passage for blood to flow. The balloon can be configured to release one or more substances formulated to treat a tissue at or near the wall of a blood vessel. In an example, the balloon can include a bioactive layer, which comprises the one or more substances, overlaying an optional base layer. In an example, the balloon can include multiple filars, at least one of which is configured to elute the one or more substances through a perforation or hole in the filar.Type: ApplicationFiled: September 30, 2022Publication date: January 26, 2023Applicant: Teleflex Life Sciences LimitedInventors: John Bridgeman, Peter Jacobs, Dean Peterson, Joshua Brenizer, Loic Van Horne
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Patent number: 11524142Abstract: Guide extension catheters and related methods are disclosed. A guide extension catheter can comprise an elongate tube member, a push member, and an external manipulation member. The push member can be eccentrically coupled relative to the tube member and extend proximally therefrom for slidably positioning the tube member within and partially beyond a distal end of a guide catheter. The manipulation member can be coupled to a proximal end of the push member, where the manipulation member can be configured to secure the guide extension catheter in place during use by attaching to an external object such that the tube member and push member remain stationary without user engagement.Type: GrantFiled: October 30, 2019Date of Patent: December 13, 2022Assignee: Teleflex Life Sciences LimitedInventors: Christopher E. Buller, Joshua Brenizer, Dean Peterson, Loic Van Horne
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Patent number: 11511086Abstract: This patent document discloses perfusion catheters and related methods for treating blood vessel lesions and abnormalities. A perfusion catheter can include an inflatable balloon, an elongate shaft operably attached to the balloon, and an optional containment structure surrounding at least a portion of the balloon. The balloon can be inflated until its outer surface contacts a wall of a blood vessel. When inflated, the balloon's inner surface defines a passage for blood to flow. The balloon can be configured to release one or more substances formulated to treat a tissue at or near the wall of a blood vessel. In an example, the balloon can include a bioactive layer, which comprises the one or more substances, overlaying an optional base layer. In an example, the balloon can include multiple filars, at least one of which is configured to elute the one or more substances through a perforation or hole in the filar.Type: GrantFiled: August 14, 2019Date of Patent: November 29, 2022Assignee: Teleflex Life Sciences LimitedInventors: John Bridgeman, Peter Jacobs, Dean Peterson, Joshua Brenizer, Loic Van Horne
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Publication number: 20220339432Abstract: Guidewires and methods for transmitting electrical stimuli to a heart and for guiding and supporting the delivery of elongate treatment devices within the heart are disclosed. A guidewire can comprise an elongate body, including first and second elongate conductors, and at least first and second electrodes. A distal end portion of the elongate body can include a preformed bias shape, such as a pigtail-shaped region, on which the first and second electrodes can be located. The preformed bias shape can optionally be non-coplanar relative to an intermediate portion of the elongate body. The first and second elongate conductors can be formed of a single structure or two or more electrically connected structures. The conductors can extend from proximal end portions to distal end portions that electrically connect to the first and second electrodes.Type: ApplicationFiled: July 12, 2022Publication date: October 27, 2022Applicants: Teleflex Life Sciences Limited, Cardiac Interventions and Aviation LLCInventors: David Daniels, Chad Kugler, John Bridgeman, Derek Stratton, Dean Peterson, Joshua Brenizer
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Publication number: 20220313950Abstract: Guide extension catheters and related methods are disclosed. A guide extension catheter can comprise an elongate tube member, a push member, and a concave track. The elongate tube member can define a lumen and three distinct portions of different diameter. A distal portion can define a first diameter, a proximal portion can define a second diameter which is larger than the first diameter but smaller than a lumen of a guide catheter with which the guide extension catheter is used, and a tapered portion, positioned between the distal portion and the proximal portion, can have a variable diameter. The push member can be eccentrically coupled relative to the tube member and extends proximally therefrom for slidably positioning the tube member within and partially beyond a distal end of the guide catheter. The concave track forms a transition between the tube member and the push member, and defines a partially cylindrical opening leading into the tube member.Type: ApplicationFiled: June 17, 2022Publication date: October 6, 2022Applicant: Teleflex Life Sciences LimitedInventors: Joshua Brenizer, Dean Peterson, Mark Wendle
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Patent number: 11420046Abstract: Guidewires and methods for transmitting electrical stimuli to a heart and for guiding and supporting the delivery of elongate treatment devices within the heart are disclosed. A guidewire can comprise an elongate body, including first and second elongate conductors, and at least first and second electrodes. A distal end portion of the elongate body can include a preformed bias shape, such as a pigtail-shaped region, on which the first and second electrodes can be located. The preformed bias shape can optionally be non-coplanar relative to an intermediate portion of the elongate body. The first and second elongate conductors can be formed of a single structure or two or more electrically connected structures. The conductors can extend from proximal end portions to distal end portions that electrically connect to the first and second electrodes.Type: GrantFiled: July 23, 2020Date of Patent: August 23, 2022Assignees: Cardiac Interventions and Aviation LLC, Teleflex Life Sciences LimitedInventors: David Daniels, Chad Kugler, John Bridgeman, Derek Stratton, Dean Peterson, Joshua Brenizer
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Publication number: 20220257910Abstract: Split support catheters, loading tools, and methods of use are disclosed. A support catheter can include an elongate tubular member and a push member. The tubular member can comprise a longitudinal slit configured to accommodate the exchange of various interventional devices into and out of the lumen defined by the tubular member. A loading tool can comprise a body member, a rod member, or both and can facilitate loading of the support catheter onto one or more interventional devices during a medical procedure. The support catheters can provide intravascular support to various interventional devices and can advantageously be inserted and removed without first removing an interventional device having its distal end at or near a target site within a patient's vasculature.Type: ApplicationFiled: February 15, 2022Publication date: August 18, 2022Applicant: Teleflex Life Sciences LimitedInventors: Jason Galdonik, Mark W. I. Webster, Christopher E. Buller, Joshua Brenizer, Daniel Jindra
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Publication number: 20220151622Abstract: Wire assemblies and methods for blood vessel occlusion in vascular procedures. The wire assemblies comprise a shaft and an occlusion member. The shaft includes a proximal end portion, a distal end portion spaced from the proximal end portion, a lumen, and a cross-sectional dimension that is perpendicular to the longitudinal axis. The occlusion member is configured to transition between a collapsed configuration and an expanded configuration.Type: ApplicationFiled: November 11, 2021Publication date: May 19, 2022Applicant: Teleflex Life Sciences LimitedInventors: Christopher E. Buller, Joshua Brenizer, Joseph Todd Grintz
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Publication number: 20220096795Abstract: Guide extension catheters and related methods are disclosed. A guide extension catheter can comprise, among other things, an elongate tube member and a push member. The push member can be operably coupled to the tube member at an eccentric coupling position and can extend proximally therefrom for slidably positioning the elongate tube member over and partially beyond a distal end of the guide catheter. The inner diameter of the elongate tube member may be adjustable, such that it constricts when not bound along its inner surface by the guide catheter. The elongate tube member can, for example, include a longitudinal slit configured to expand and contract to accommodate insertion and removal of the guide catheter, respectively.Type: ApplicationFiled: December 12, 2019Publication date: March 31, 2022Applicant: Teleflex Life Sciences LimitedInventor: Joshua Brenizer
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Publication number: 20210308430Abstract: This patent document discloses accessory devices and associated methods for catheter and guidewire management in a surgical setting. Implementations can include an accessory device having a manually deformable body that includes proximal and distal surfaces. The body may further define at least first and second apertures, each aperture extending through the body. The first aperture can be engageable with a proximal end portion of a first elongate medical device, and the second aperture can be configured to receive a second elongate medical device. The body can be slidable along the proximal end portion of the first elongate medical device and/or the second elongate medical device, and the proximal surface of the body may include a funnel leading into the first aperture, the second aperture, or both. The body may be incorporated into, or attached to, a proximal side of a hemostasis valve utilized for a medical operation.Type: ApplicationFiled: January 21, 2021Publication date: October 7, 2021Applicant: Teleflex Life Sciences LimitedInventors: Christopher E. Buller, Joshua Brenizer
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Publication number: 20210196928Abstract: Percutaneous devices and methods for releasably engaging a guidewire against an inner surface of a tubular member are disclosed. A percutaneous device can include a tube member, a push member, and a fixation mechanism such as a fixation balloon. The tube member can define a lumen sized and shaped to receive one or more interventional medical devices therethrough and can have an outer diameter smaller than a lumen of a guide catheter. The push member can extend proximal of the tube member for slidably positioning a distal end portion of the tube member within and beyond a distal end of the guide catheter. The push member can include a lumen in fluid communication with an interior of the fixation balloon, for example, for delivering inflation fluid to, or removing fluid from, the balloon. The fixation balloon can be positioned can be positioned and configured to engage a guidewire against the inner surface of the guide catheter or of the tube member when inflated.Type: ApplicationFiled: March 15, 2021Publication date: July 1, 2021Applicant: Teleflex Life Sciences LimitedInventors: Christopher E. Buller, Chad Kugler, Dean Peterson, Joshua Brenizer, Danny M. Jester
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Patent number: 10974028Abstract: Percutaneous devices and methods for releasably engaging a guidewire against an inner surface of a tubular member are disclosed. A percutaneous device can include a tube member, a push member, and a fixation mechanism such as a fixation balloon. The tube member can define a lumen sized and shaped to receive one or more interventional medical devices therethrough and can have an outer diameter smaller than a lumen of a guide catheter. The push member can be attached at least to a proximal end portion of the tube member for slidably positioning a distal end portion of the tube member within and beyond a distal end of the guide catheter. The push member can include a lumen in fluid communication with an interior of the fixation balloon for delivering inflation fluid to, or removing fluid from, the balloon. The fixation balloon can be positioned on a portion of the push member and can be configured to engage a guidewire against the inner surface of the guide catheter or the tube member when inflated.Type: GrantFiled: May 24, 2016Date of Patent: April 13, 2021Assignee: Teleflex Life Sciences LimitedInventors: Christopher E. Buller, Chad Kugler, Dean Peterson, Joshua Brenizer, Danny M. Jester
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Patent number: 10953197Abstract: Guide extension catheters and related methods are disclosed. A guide extension catheter can comprise an elongate tube member, a push member, and a removable support member. The push member can be eccentrically coupled directly or indirectly to the elongate tube member and can extend proximally therefrom for slidably positioning the elongate tube member within and partially beyond a distal end of a guide catheter. The removable support member can comprise a structure that surrounds at least a portion of the push member. The removable support member alone, or when placed over the push member, can be more rigid along its longitudinal axis than the elongate tube member and can have a cross-sectional dimension that is greater than a maximal cross-sectional dimension of the push member.Type: GrantFiled: October 30, 2019Date of Patent: March 23, 2021Assignee: Teleflex Life Sciences LimitedInventors: Joshua Brenizer, Dean Peterson, Thomas Kouchoukos, Mark Wendle
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Patent number: 10946177Abstract: This patent document discloses guide extension catheters for use with a predefined length guide catheter and related methods for treating blood vessel lesions and abnormalities. A guide extension catheter can include a push member, an elongate tube member, and a balloon radially surrounding a portion of the elongate tube member. The balloon can include an inflatable tube coupled to an elongate shaft having a lumen for receiving inflation fluid, and the inflatable tube can be coiled in a helical manner around the elongate tube member. A bioactive layer can coat an outer surface portion of the balloon and, when the balloon is inflated, one or more drugs of the bioactive layer can be received by the blood vessel. Inflation of the balloon can engage the elongate tube member with an inner surface of the blood vessel and/or an inner surface of the guide catheter.Type: GrantFiled: October 30, 2019Date of Patent: March 16, 2021Assignee: Teleflex Life Sciences LimitedInventors: Dean Peterson, Joshua Brenizer
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Publication number: 20210069478Abstract: Perfusion catheters and related methods for treating complications related to CTO interventions or dilating a vessel occlusion while maintaining a passage through the treated vessel segment are disclosed. A perfusion catheter can include a balloon formed of an inflatable tube and an elongate shaft having a lumen for providing inflation fluid to, or withdrawing inflation fluid from, the balloon. The inflatable tube can be coiled in a helical manner around a central axis into a series of windings. Adjacent windings can be stacked against and bonded to each other, and an inner surface of the series of windings, when inflated, can define the passage. The elongate shaft can be eccentrically attached to the balloon and the shaft's lumen can be in fluid communication with the interior of the balloon, specifically the inflatable tube. The inflatable tube can include two different polymer tubes, one slightly smaller than the other.Type: ApplicationFiled: November 10, 2020Publication date: March 11, 2021Applicant: Teleflex Life Sciences LimitedInventors: Howard C. Root, Chad Kugler, Dean Peterson, Joshua Brenizer
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Publication number: 20210008355Abstract: This patent document discloses guide extension catheters for use with a predefined length guide catheter and related methods for treating blood vessel lesions and abnormalities. A guide extension catheter can include a push member, an elongate tube member, and a balloon radially surrounding a portion of the elongate tube member. The balloon can include an inflatable tube coupled to an elongate shaft having a lumen for receiving inflation fluid, and the inflatable tube can be coiled in a helical manner around the elongate tube member. A bioactive layer can coat an outer surface portion of the balloon and, when the balloon is inflated, one or more drugs of the bioactive layer can be received by the blood vessel. Inflation of the balloon can engage the elongate tube member with an inner surface of the blood vessel and/or an inner surface of the guide catheter.Type: ApplicationFiled: October 30, 2019Publication date: January 14, 2021Inventors: Dean Peterson, Joshua Brenizer