Patents by Inventor David BURKLAND
David BURKLAND 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: 11712559Abstract: Wireless treatment of arrhythmias. At least some of the example embodiments are methods including: charging a capacitor of a first microchip device abutting heart tissue, the charging by harvesting ambient energy; charging a capacitor of a second microchip device abutting the heart tissue, the charging of the capacitor of the second microchip device by harvesting ambient energy; sending a command wirelessly from a communication device outside the rib cage to the microchip devices; applying electrical energy to the heart tissue by the first microchip device responsive to the command, the electrical energy applied from the capacitor of the first microchip device; and applying electrical energy to the heart tissue by the second microchip device responsive to the command to the second microchip device, the electrical energy applied from the capacitor of the second microchip device.Type: GrantFiled: May 14, 2021Date of Patent: August 1, 2023Assignees: William Marsh Rice University, Texas Heart Institute, Baylor College of MedicineInventors: Yuxiang Sun, Aydin Babakhani, Mehdi Razavi, David Burkland, Brian Greet, Mathews John, Hongming Lyu
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Publication number: 20220125476Abstract: A surgical needle is configured to detect whether a distal tip of the surgical needle perforates or ends up in an undesirable location, or detect whether the distal tip of the surgical needle has accessed a desired location. The surgical needle includes a hub and a body connected to the hub. The body has a hollow core and includes a sharp-pointed tip at a distal end. A first electrode is formed by the sharp-pointed tip of the body. At least a second electrode is provided around the body. The first and second electrodes are connected to a wired connector that can be plugged into an external sensing system. The external sensing system can monitor impedance, electrical parameters, or other parameters.Type: ApplicationFiled: February 6, 2020Publication date: April 28, 2022Inventors: ANAND GANAPATHY, DAVID BURKLAND, ALLISON POST, BRIAN GREET, MEHDI RAZAVI, MATHEWS JOHN
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Publication number: 20210339017Abstract: Wireless treatment of arrhythmias. At least some of the example embodiments are methods including: charging a capacitor of a first microchip device abutting heart tissue, the charging by harvesting ambient energy; charging a capacitor of a second microchip device abutting the heart tissue, the charging of the capacitor of the second microchip device by harvesting ambient energy; sending a command wirelessly from a communication device outside the rib cage to the microchip devices; applying electrical energy to the heart tissue by the first microchip device responsive to the command, the electrical energy applied from the capacitor of the first microchip device; and applying electrical energy to the heart tissue by the second microchip device responsive to the command to the second microchip device, the electrical energy applied from the capacitor of the second microchip device.Type: ApplicationFiled: May 14, 2021Publication date: November 4, 2021Applicants: WILLIAM MARSH RICE UNIVERSITY, TEXAS HEART INSTITUTE, BAYLOR COLLEGE OF MEDICINEInventors: Yuxiang SUN, Aydin BABAKHANI, Mehdi RAZAVI, David BURKLAND, Brian GREET, Mathews JOHN, Hongming LYU
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Patent number: 11071857Abstract: Wireless treatment of arrhythmias. At least some of the example embodiments are methods including: charging a capacitor of a first microchip device abutting heart tissue, the charging by harvesting ambient energy; charging a capacitor of a second microchip device abutting the heart tissue, the charging of the capacitor of the second microchip device by harvesting ambient energy; sending a command wirelessly from a communication device outside the rib cage to the microchip devices; applying electrical energy to the heart tissue by the first microchip device responsive to the command, the electrical energy applied from the capacitor of the first microchip device; and applying electrical energy to the heart tissue by the second microchip device responsive to the command to the second microchip device, the electrical energy applied from the capacitor of the second microchip device.Type: GrantFiled: August 22, 2017Date of Patent: July 27, 2021Assignees: William Marsh Rice University, Baylor College of Medicine, Texas Heart InstituteInventors: Yuxiang Sun, Aydin Babakhani, Mehdi Razavi, David Burkland, Brian Greet, Mathews John, Hongming Lyu
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Publication number: 20200129086Abstract: A surgical instrument includes an impedance sensing system for monitoring the position of the tip of the surgical instrument relative to the pericardial space. The surgical instrument consists of a guidewire or needle including a conductive core terminating at a distal tip of the guidewire or needle. The distal tip has a conductive surface exposed to patient tissues and/or fluids. The impedance sensing system includes a first electrode formed by the exposed surface of the guidewire or needle, and at least a second electrode isolated from the conductive core of the guidewire or needle. The second electrode may be formed on an outer surface of the guidewire or needle, or may be a pad electrode applied to the patient skin. The impedance sensing system also includes an impedance analyzer for measuring impedance and phase using one or more frequencies.Type: ApplicationFiled: March 19, 2018Publication date: April 30, 2020Inventors: Anand GANAPATHY, David BURKLAND, Mathews JOHN, Brian GREET, Mehdi RAZAVI
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Publication number: 20190314077Abstract: Catheter ablation systems are used to isolate the Left Atrial Appendage (“LAA”), or portions of the LAA, by using balloons. The systems deliver an ablation fluid such as alcohol in order to destroy the LAA tissue isolated between the balloons, deliver saline to dilute the ablation fluid, and remove excess fluid and particulates by suction to prevent excess residual alcohol from remaining in the LAA.Type: ApplicationFiled: April 11, 2019Publication date: October 17, 2019Inventors: Mehdi Razavi, Elaine Chinn, Charlene Morrison, Ryan Oatman, Ashley Rook, Blake Smith, Anand Ganapathy, Mathews John, David Burkland, Brian Greet
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Publication number: 20190314607Abstract: A catheter system includes a head including ports, a tail including conduits, and a medical balloon located between the head and the tail. Each conduit is connected to one of the ports. The medical balloon comprises ridges located around a circumference of the medical balloon. One or more sensors are located in the conduits. The catheter system can be used for ablation of the left atrial appendage using an ablation agent. The catheter system is capable of sealing the left atrial appendage, administering the ablation agent, delivering rinsing fluid into the sealed cavity, and extracting liquid from the sealed cavity.Type: ApplicationFiled: April 11, 2019Publication date: October 17, 2019Inventors: Mehdi Razavi, Mathews John, Anand Ganapathy, Manuel Andres Gutierrez, Vincent Ngo, Loren Chane Sladek, Brian Greet, David Burkland
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Publication number: 20190224476Abstract: Wireless treatment of arrhythmias. At least some of the example embodiments are methods including: charging a capacitor of a first microchip device abutting heart tissue, the charging by harvesting ambient energy; charging a capacitor of a second microchip device abutting the heart tissue, the charging of the capacitor of the second microchip device by harvesting ambient energy; sending a command wirelessly from a communication device outside the rib cage to the microchip devices; applying electrical energy to the heart tissue by the first microchip device responsive to the command, the electrical energy applied from the capacitor of the first microchip device; and applying electrical energy to the heart tissue by the second microchip device responsive to the command to the second microchip device, the electrical energy applied from the capacitor of the second microchip device.Type: ApplicationFiled: August 22, 2017Publication date: July 25, 2019Applicants: WILLIAM MARSH RICE UNIVERSITY, TEXAS HEART INSTITUTE, BAYLOR COLLEGE OF MEDICINEInventors: Yuxiang SUN, Aydin BABAKHANI, Mehdi RAZAVI, David BURKLAND, Brian GREET, Mathews JOHN, Hongming LYU