Patents by Inventor Nikolaos V. Tsekos
Nikolaos V. Tsekos 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: 10136955Abstract: Provided herein are actuation transmission lines used for robotic systems, for example, MRI guided robots, for image-guided robot-assisted surgical and medical intervention procedures. This actuation transmission lines may include any of the following: one or more sections of a flexible channel; one or more sections of a rigid channel in a connecting relationship with the one or more sections of a flexible channel; solid media disposed inside the channel; one or more mechanical links in contact with the solid media inside the channel electronically or mechanically linked to a power source; a fine-tuning module disposed in the flexible channel; and one or more media motion sensors.Type: GrantFiled: January 9, 2017Date of Patent: November 27, 2018Assignee: University of Houston SystemInventors: Nikolaos V. Tsekos, Michael Heffernan
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Patent number: 9855103Abstract: Provided herein are systems, modules and methods of using the same for in-situ real time imaging guidance of a robot during a surgical procedure. The systems comprise a plurality of modules that intraoperatively link an imaging modality, particularly a magnetic resonance imaging modality, a medical robot and an operator thereof via a plurality of interfaces. The modules are configured to operate in at least one computer having a memory, a processor and a network connection to enable instructions to generally control the imaging modality, track the robot, track a tissue of interest in an area of procedure, process data acquire from imaging modality and the robot and visualize the area and robot. Also provided are non-transitory computer-readable data storage medium storing computer-executable instructions comprising the modules and a computer program produce tangibly embodied in the storage medium.Type: GrantFiled: August 27, 2013Date of Patent: January 2, 2018Assignee: UNIVERSITY OF HOUSTON SYSTEMInventors: Nikolaos v. Tsekos, Nikhil V. Navkar
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Publication number: 20170135772Abstract: Provided herein are actuation transmission lines used for robotic systems, for example, MRI guided robots, for image-guided robot-assisted surgical and medical intervention procedures. This actuation transmission lines may include any of the following: one or more sections of a flexible channel; one or more sections of a rigid channel in a connecting relationship with the one or more sections of a flexible channel; solid media disposed inside the channel; one or more mechanical links in contact with the solid media inside the channel electronically or mechanically linked to a power source; a fine-tuning module disposed in the flexible channel; and one or more media motion sensors.Type: ApplicationFiled: January 9, 2017Publication date: May 18, 2017Inventors: Nikolaos V. Tsekos, Michael Heffernan
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Patent number: 9539058Abstract: Provided herein are robotic systems, for example, MRI guided robots, for image-guided robot-assisted surgical procedures and methods for using the same to perform such surgical procedures on a patient. The robotic systems comprise a robotic manipulator device or global positioner, means for actuating the robotic manipulator or global positioner that is mechanically linked thereto and a computer having a memory, a processor and at least one network connection in electronic communication with the robotic system. The actuating means comprises at least one transmission line having a flexible component comprising a displaceable medium, a rigid component comprising rigid pistons or a combination through which actuation is transmitted to the robotic manipulator or global positioner. The computer tangibly stores in memory software modules comprising processor-executable instructions to provide interfaces between the robotic system, an imaging system and an operator and to control operation thereof.Type: GrantFiled: August 26, 2013Date of Patent: January 10, 2017Inventors: Nikolaos V. Tsekos, Nicholas C. von Sternberg
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Publication number: 20140058406Abstract: Provided herein are robotic systems, for example, MRI guided robots, for image-guided robot-assisted surgical procedures and methods for using the same to perform such surgical procedures on a patient. The robotic systems comprise a robotic manipulator device or global positioner, means for actuating the robotic manipulator or global positioner that is mechanically linked thereto and a computer having a memory, a processor and at least one network connection in electronic communication with the robotic system. The actuating means comprises at least one transmission line having a flexible component comprising a displaceable medium, a rigid component comprising rigid pistons or a combination through which actuation is transmitted to the robotic manipulator or global positioner. The computer tangibly stores in memory software modules comprising processor-executable instructions to provide interfaces between the robotic system, an imaging system and an operator and to control operation thereof.Type: ApplicationFiled: August 26, 2013Publication date: February 27, 2014Inventor: Nikolaos V. Tsekos
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Publication number: 20140058407Abstract: Provided herein are systems, modules and methods of using the same for in-situ real time imaging guidance of a robot during a surgical procedure. The systems comprise a plurality of modules that intraoperatively link an imaging modality, particularly a magnetic resonance imaging modality, a medical robot and an operator thereof via a plurality of interfaces. The modules are configured to operate in at least one computer having a memory, a processor and a network connection to enable instructions to generally control the imaging modality, track the robot, track a tissue of interest in an area of procedure, process data acquire from imaging modality and the robot and visualize the area and robot. Also provided are non-transitory computer-readable data storage medium storing computer-executable instructions comprising the modules and a computer program produce tangibly embodied in the storage medium.Type: ApplicationFiled: August 27, 2013Publication date: February 27, 2014Inventors: Nikolaos V. Tsekos, Nikhil V. Navkar
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Publication number: 20120095322Abstract: Provided herein are robotic or automated multimodal tissue scanning or imaging systems and methods. The systems comprise a robotic delivery device configured to mechanically scan one or more zones of a tissue by co-registering at least two modalities, i.e., one or more of each of a sensor modality and an imaging modality and acquiring sensor modality data at one or more positions in the zone(s) as the sensor modality is dimensionally translated along the device axes. The system also comprises a computational core of a plurality of interlinked modules for planning, processing, tissue-sampling, visualization, fusion, and control of the delivery device and the system. The methods provided herein utilize the automated systems to produce spatial maps based on the analyzed sensor modality data.Type: ApplicationFiled: September 8, 2011Publication date: April 19, 2012Inventors: Nikolaos V. Tsekos, Ahmet E. Sonmez
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Patent number: 6904305Abstract: The combination of contrast enhanced magnetic resonance imaging (MRI) and MR-guided subcutaneous core biopsy can be used as a robust approach for the diagnosis and treatment of breast cancer. MRI provides the means to accurately position and monitor interventional procedures such as biopsy, removal of tissue or other transcanular procedures. MRI may also be used in this invention to position and monitor the progress of breast conserving therapies (BCT), such as laser photo-ablation, cryoablation and localized hyperthermia. The general practice of this invention is to provide a remotely controlled apparatus for MR-guided interventional procedures in the breast. The apparatus allows the practice of a method that provides flexibility in conditioning the breast, i.e. orientation and degree of compression, and in setting the trajectory of the intervention.Type: GrantFiled: December 20, 2001Date of Patent: June 7, 2005Assignee: Regents of the University of MinnesotaInventor: Nikolaos V. Tsekos
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Patent number: 6675037Abstract: The combination of contrast enhanced magnetic resonance imaging (MRI) and MR-guided subcutaneous core biopsy can be used as a robust approach for the diagnosis and treatment of breast cancer. MRI provides the means to accurately position and monitor interventional procedures such as biopsy, removal of tissue or other transcanular procedures. MRI may also be used in this invention to position and monitor the progress of breast conserving therapies (BCT), such as laser photo-ablation, cryoablation and localized hyperthermia. The general practice of this invention is to provide a remotely controlled apparatus for MR-guided interventional procedures in the breast. The apparatus allows the practice of a method that provides flexibility in conditioning the breast, i.e. orientation and degree of compression, and in setting the trajectory of the intervention.Type: GrantFiled: September 29, 1999Date of Patent: January 6, 2004Assignee: Regents of the University of MinnesotaInventor: Nikolaos V. Tsekos
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Publication number: 20020156365Abstract: The combination of contrast enhanced magnetic resonance imaging (MRI) and MR-guided subcutaneous core biopsy can be used as a robust approach for the diagnosis and treatment of breast cancer. MRI provides the means to accurately position and monitor interventional procedures such as biopsy, removal of tissue or other transcanular procedures. MRI may also be used in this invention to position and monitor the progress of breast conserving therapies (BCT), such as laser photo-ablation, cryoablation and localized hyperthermia. The general practice of this invention is to provide a remotely controlled apparatus for MR-guided interventional procedures in the breast. The apparatus allows the practice of a method that provides flexibility in conditioning the breast, i.e. orientation and degree of compression, and in setting the trajectory of the intervention.Type: ApplicationFiled: December 20, 2001Publication date: October 24, 2002Applicant: Regents of the University of MinnesotaInventor: Nikolaos V. Tsekos
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Fast MRI for assessment of myocardial perfusion with arrythmia insensitive magnetization preparation
Patent number: 5908386Abstract: Contrast preparation based on Modified Driven Equilibrium Fourier Transfer generates T1 weighted images for assessment of the myocardial perfusion with contrast agent first-pass kinetics. The preparation scheme produces T1 contrast with insensitivity to arrhythmias in prospectively triggered sequential imaging thereby eliminating one of the major sources of problems in potential patient studies with previously employed contrast preparations schemes.Type: GrantFiled: December 13, 1996Date of Patent: June 1, 1999Assignee: Regents of the Universotiy of MinnesotaInventors: Kamil Ugurbil, Nikolaos V. Tsekos, Michael G. Garwood