Patents by Inventor Joao Lima
Joao Lima 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: 9301705Abstract: A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures includes an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic resonance signals and diagnostic electrodes for receiving electrical potentials. The combined electrophysiology and imaging antenna catheter is used in combination with a magnetic resonance imaging scanner to guide and provide visualization during electrophysiologic diagnostic or therapeutic procedures, such as ablation of cardiac arrhythmias. The combined electrophysiology and imaging antenna catheter may further include an ablation tip, and be used as an intracardiac device to deliver energy to selected areas of tissue and visualize the resulting ablation lesions.Type: GrantFiled: December 30, 2011Date of Patent: April 5, 2016Assignee: Johns Hopkins University School of MedicineInventors: Henry R. Halperin, Ronald D. Berger, Ergin Atalar, Elliott R. McVeigh, Albert Lardo, Hugh Caikins, Joao Lima
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Publication number: 20120101364Abstract: A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures includes an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic resonance signals and diagnostic electrodes for receiving electrical potentials. The combined electrophysiology and imaging antenna catheter is used in combination with a magnetic resonance imaging scanner to guide and provide visualization during electrophysiologic diagnostic or therapeutic procedures, such as ablation of cardiac arrhythmias. The combined electrophysiology and imaging antenna catheter may further include an ablation tip, and be used as an intracardiac device to deliver energy to selected areas of tissue and visualize the resulting ablation lesions.Type: ApplicationFiled: December 30, 2011Publication date: April 26, 2012Applicant: SURGI-VISION, INC.Inventors: Henry R. HALPERIN, Ronald D. Berger, Ergin ATALAR, Elliott R. McVeigh, Albert LARDO, Hugh CAIKINS, Joao LIMA
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Patent number: 8099151Abstract: A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures includes an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic resonance signals and diagnostic electrodes for receiving electrical potentials. The combined electrophysiology and imaging antenna catheter is used in combination with a magnetic resonance imaging scanner to guide and provide visualization during electrophysiologic diagnostic or therapeutic procedures, such as ablation of cardiac arrhythmias. The combined electrophysiology and imaging antenna catheter may further include an ablation tip, and be used as an intracardiac device to deliver energy to selected areas of tissue and visualize the resulting ablation lesions. The antenna utilized in the combined electrophysiology and imaging catheter for receiving MR signals is preferably of the coaxial or “loopless” type.Type: GrantFiled: December 22, 2005Date of Patent: January 17, 2012Assignee: Johns Hopkins University School of MedicineInventors: Henry R Halperin, Ronald D. Berger, Ergin Atalar, Elliot R McVeigh, Albert Lardo, Hugh Calkins, Joao Lima
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Patent number: 7822460Abstract: A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures is disclosed. The system in its preferred embodiment provides an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic resonance signals and diagnostic electrodes for receiving electrical potentials. The combined electrophysiology and imaging antenna catheter is used in combination with a magnetic resonance imaging scanner to guide and provide visualization during electrophysiologic diagnostic or therapeutic procedures. The invention further provides a system for eliminating the pickup of RF energy in which intracardiac wires are detuned by filtering so that they become very inefficient antennas. An RF filtering system is provided for suppressing the MR imaging signal while not attenuating the RF ablative current. Steering means may be provided for steering the invasive catheter under MR guidance.Type: GrantFiled: October 26, 2007Date of Patent: October 26, 2010Assignee: Surgi-Vision, Inc.Inventors: Henry R. Halperin, Ronald D. Berger, Ergin Atalar, Elliot R. McVeigh, Albert Lardo, Hugh Calkins, Joao Lima
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Patent number: 7412276Abstract: A method of performing brain therapy may include placing a subject in a main magnetic field, introducing into the subject's brain a combination imaging and therapeutic probe, the probe including a magnetic resonance imaging antenna and an electrical energy application element, acquiring a first magnetic resonance image from the antenna of the combination probe, acquiring a second magnetic resonance image from a surface coil, combining the first and second magnetic resonance images to produce a composite image, positioning the combination probe within the brain with guidance from at least one of the images, and delivering electrical energy to the brain from the electrical energy application element of the combination probe thus positioned.Type: GrantFiled: March 2, 2004Date of Patent: August 12, 2008Assignee: Johns Hopkins University School of MedicineInventors: Henry R. Halperin, Ronald D. Berger, Ergin Atalar, Elliot R. McVeigh, Albert C. Lardo, Hugh Calkins, Joao Lima
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Publication number: 20080058635Abstract: A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures is disclosed. The system in its preferred embodiment provides an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic resonance signals and diagnostic electrodes for receiving electrical potentials. The combined electrophysiology and imaging antenna catheter is used in combination with a magnetic resonance imaging scanner to guide and provide visualization during electrophysiologic diagnostic or therapeutic procedures. The invention is particularly applicable to catheter ablation, e.g., ablation of atrial fibrillation.Type: ApplicationFiled: October 26, 2007Publication date: March 6, 2008Inventors: Henry Halperin, Ronald Berger, Ergin Atalar, Elliot McVeigh, Albert Lardo, Hugh Calkins, Joao Lima
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Patent number: 7155271Abstract: A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures is disclosed. The system in its preferred embodiment provides an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic resonance signals and diagnostic electrodes for receiving electrical potentials. The combined electrophysiology and imaging antenna catheter is used in combination with a magnetic resonance imaging scanner to guide and provide visualization during electrophysiologic diagnostic or therapeutic procedures. The invention is particularly applicable to catheter ablation, e.g., ablation of atrial fibrillation.Type: GrantFiled: April 28, 2003Date of Patent: December 26, 2006Assignee: Johns Hopkins University School of MedicineInventors: Henry R. Halperin, Ronald D. Berger, Ergin Atalar, Elliot R. McVeigh, Albert Lardo, Hugh Calkins, Joao Lima
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Publication number: 20060241402Abstract: An X-ray CT apparatus 1 comprises a blood-flow information acquisition unit, a correction value calculating unit and a blood-flow image generating unit 24e. The blood-flow information acquisition unit obtains information of a relative blood flow rate in the myocardium of the subject P based on the CT image. The correction value calculating unit obtains a correction value based on the CT image in a concentration transition period defined to be a period from immediately after starting of a continuously injection of a contrast medium into the subject P until the contrast medium injected reaches to the myocardium, increases, and will be in a state where it can be considered that the contrast medium is saturated in a constant value. The blood-flow image generating unit 24e generating a blood flow value image in the myocardium by correcting the information of the relative blood flow rate with the correction value.Type: ApplicationFiled: March 10, 2005Publication date: October 26, 2006Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, THE JOHNS HOPKINS UNIVERSITYInventors: Takashi Ichihara, Toshihiro Rifu, Joao Lima
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Publication number: 20060100506Abstract: A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures includes an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic resonance signals and diagnostic electrodes for receiving electrical potentials. The combined electrophysiology and imaging antenna catheter is used in combination with a magnetic resonance imaging scanner to guide and provide visualization during electrophysiologic diagnostic or therapeutic procedures, such as ablation of cardiac arrhythmias. The combined electrophysiology and imaging antenna catheter may further include an ablation tip, and be used as an intracardiac device to deliver energy to selected areas of tissue and visualize the resulting ablation lesions. The antenna utilized in the combined electrophysiology and imaging catheter for receiving MR signals is preferably of the coaxial or “loopless” type.Type: ApplicationFiled: December 22, 2005Publication date: May 11, 2006Applicant: Johns Hopkins University School of MedicineInventors: Henry Halperin, Ronald Berger, Ergin Atalar, Elliot McVeigh, Albert Lardo, Hugh Calkins, Joao Lima
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Publication number: 20040167392Abstract: A method of performing brain therapy may include placing a subject in a main magnetic field, introducing into the subject's brain a combination imaging and therapeutic probe, the probe including a magnetic resonance imaging antenna and an electrical energy application element, acquiring a first magnetic resonance image from the antenna of the combination probe, acquiring a second magnetic resonance image from a surface coil, combining the first and second magnetic resonance images to produce a composite image, positioning the combination probe within the brain with guidance from at least one of the images, and delivering electrical energy to the brain from the electrical energy application element of the combination probe thus positioned.Type: ApplicationFiled: March 2, 2004Publication date: August 26, 2004Inventors: Henry R. Halperin, Ronald D. Berger, Ergin Atalar, Elliot R. McVeigh, Albert Lardo, Hugh Calkins, Joao Lima
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Patent number: 6701176Abstract: A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures is disclosed. The system in its preferred embodiment provides an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic resonance signals and diagnostic electrodes for receiving electrical potentials. The combined electrophysiology and imaging antenna catheter is used in combination with a magnetic resonance imaging scanner to guide and provide visualization during electrophysiologic diagnostic or therapeutic procedures. The invention is particularly applicable to catheter ablation, e.g., ablation of atrial fibrillation.Type: GrantFiled: October 29, 1999Date of Patent: March 2, 2004Assignee: Johns Hopkins University School of MedicineInventors: Henry R. Halperin, Ronald D. Berger, Ergin Atalar, Elliot R. McVeigh, Albert Lardo, Hugh Calkins, Joao Lima
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Publication number: 20030199755Abstract: A system and method for using magnetic resonance imaging to increase the accuracy of electrophysiologic procedures is disclosed. The system in its preferred embodiment provides an invasive combined electrophysiology and imaging antenna catheter which includes an RF antenna for receiving magnetic resonance signals and diagnostic electrodes for receiving electrical potentials. The combined electrophysiology and imaging antenna catheter is used in combination with a magnetic resonance imaging scanner to guide and provide visualization during electrophysiologic diagnostic or therapeutic procedures. The invention is particularly applicable to catheter ablation, e.g., ablation of atrial fibrillation.Type: ApplicationFiled: April 28, 2003Publication date: October 23, 2003Applicant: Johns Hopkins University School Of MedicineInventors: Henry R. Halperin, Ronald D. Berger, Ergin Atalar, Elliot R. McVeigh, Albert Lardo, Hugh Calkins, Joao Lima