Patents by Inventor Jiong Xia
Jiong Xia 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: 12334207Abstract: Methods and systems for establishing dental occlusion are described herein. These systems and methods can be used for 1-, 2-, or 3-piece maxillary orthognathic surgeries. An example computer-implemented method includes receiving a maxillary dental model and a mandibular dental model, identifying a plurality of dental landmarks in each of the maxillary and mandibular dental models, and extracting a plurality of points-of-interest from each of the maxillary and mandibular dental models. The dental landmarks include a plurality of maxillary dental landmarks and a plurality of mandibular dental landmarks. The method further includes aligning the maxillary and mandibular points-of-interest, and fine tuning the alignment of the maxillary and mandibular dental models to achieve maximum contact with a collision constraint.Type: GrantFiled: October 12, 2020Date of Patent: June 17, 2025Assignee: THE METHODIST HOSPITAL SYSTEMInventors: James Jiong Xia, Jaime Gateno, Peng Yuan, Han Deng
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Patent number: 11963832Abstract: Systems and methods for orthognathic surgical planning are described herein. An example computer-implemented method can include generating a composite three-dimensional (3D) model of a subject's skull, defining a primal reference frame for the composite 3D model, performing a cephalometric analysis on the composite 3D model to quantify at least one geometric property of the subject's skull, performing a virtual osteotomy to separate the composite 3D model into a plurality of segments, performing a surgical simulation using the osteotomized segments, and designing a surgical splint or template for the subject.Type: GrantFiled: December 12, 2022Date of Patent: April 23, 2024Assignee: The Methodist HospitalInventors: James Jiong Xia, Jaime Gateno, Peng Yuan
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Publication number: 20230111070Abstract: Systems and methods for orthognathic surgical planning are described herein. An example computer-implemented method can include generating a composite three-dimensional (3D) model of a subject's skull, defining a primal reference frame for the composite 3D model, performing a cephalometric analysis on the composite 3D model to quantify at least one geometric property of the subject's skull, performing a virtual osteotomy to separate the composite 3D model into a plurality of segments, performing a surgical simulation using the osteotomized segments, and designing a surgical splint or template for the subject.Type: ApplicationFiled: December 12, 2022Publication date: April 13, 2023Inventors: James Jiong Xia, Jaime Gateno, Peng Yuan
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Patent number: 11523886Abstract: Systems and methods for orthognathic surgical planning are described herein. An example computer-implemented method can include generating a composite three-dimensional (3D) model of a subject's skull, defining a global reference frame for the composite 3D model, performing a cephalometric analysis on the composite 3D model to quantify at least one geometric property of the subject's skull, performing a virtual osteotomy to separate the composite 3D model into a plurality of segments, performing a surgical simulation using the osteotomized segments, and designing a surgical splint or template for the subject.Type: GrantFiled: August 21, 2017Date of Patent: December 13, 2022Assignee: The Methodist HospitalInventors: James Jiong Xia, Jaime Gateno, Peng Yuan
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Publication number: 20220351829Abstract: Methods and systems for establishing dental occlusion are described herein. These systems and methods can be used for 1-, 2-, or 3-piece maxillary orthognathic surgeries. An example computer-implemented method includes receiving a maxillary dental model and a mandibular dental model, identifying a plurality of dental landmarks in each of the maxillary and mandibular dental models, and extracting a plurality of points-of-interest from each of the maxillary and mandibular dental models. The dental landmarks include a plurality of maxillary dental landmarks and a plurality of mandibular dental landmarks. The method further includes aligning the maxillary and mandibular points-of-interest, and fine tuning the alignment of the maxillary and mandibular dental models to achieve maximum contact with a collision constraint.Type: ApplicationFiled: October 12, 2020Publication date: November 3, 2022Inventors: James Jiong XIA, Jaime GATENO, Peng YUAN, Han DENG
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Patent number: 11474581Abstract: A hot-swap controller regulates the supply of power from an input node to a load coupled to an output node. The controller includes at least one limiting circuit configured to control a first switch connected between the input node and the load to limit an output current of the first switch for application to the load. A control logic circuit determines a state of the first switch and outputs a local state signal, and a communication circuit responsive to the local state signal establishes a voltage or current level corresponding to the local state at a communication circuit output. A communication terminal is also provided that is responsive to the communication output and that is adapted to connect to a second communication terminal of a second hot-swap controller to communicate the local state to the second hot-swap controller.Type: GrantFiled: August 9, 2019Date of Patent: October 18, 2022Assignee: Analog Devices International Unlimited CompanyInventors: Joshua John Simonson, Jiong Xia
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Publication number: 20220215625Abstract: Systems and methods for estimating a patient-specific reference bone shape model for a patient with craniomaxillofacial (CMF) defects are described herein. An example method includes receiving a twodimensional (ā2Dā) pre-trauma image of a subject, and generating a three-dimensional (ā3Dā) facial surface model for the subject from the 2D pre-trauma image. The method also includes providing a correlation model between 3D facial and bone surfaces, and estimating a reference bone model for the subject using the 3D facial surface model and the correlation model.Type: ApplicationFiled: April 2, 2020Publication date: July 7, 2022Inventors: James Jiong XIA, Jaime GATENO, Dinggang SHEN
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Publication number: 20210041930Abstract: A hot-swap controller regulates the supply of power from an input node to a load coupled to an output node. The controller includes at least one limiting circuit configured to control a first switch connected between the input node and the load to limit an output current of the first switch for application to the load. A control logic circuit determines a state of the first switch and outputs a local state signal, and a communication circuit responsive to the local state signal establishes a voltage or current level corresponding to the local state at a communication circuit output. A communication terminal is also provided that is responsive to the communication output and that is adapted to connect to a second communication terminal of a second hot-swap controller to communicate the local state to the second hot-swap controller.Type: ApplicationFiled: August 9, 2019Publication date: February 11, 2021Inventors: Joshua John Simonson, Jiong Xia
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Publication number: 20200197137Abstract: Systems and methods for orthognathic surgical planning are described herein. An example computer-implemented method can include generating a composite three-dimensional (3D) model of a subject's skull, defining a global reference frame for the composite 3D model, performing a cephalometric analysis on the composite 3D model to quantify at least one geometric property of the subject's skull, performing a virtual osteotomy to separate the composite 3D model into a plurality of segments, performing a surgical simulation using the osteotomized segments, and designing a surgical splint or template for the subject.Type: ApplicationFiled: August 21, 2017Publication date: June 25, 2020Inventors: James Jiong Xia, Jaime Gateno, Peng Yuan
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Patent number: 8306623Abstract: An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissues, current pulses or voltage pulses having the multi-phasic waveform provide increased specificity and sensitivity in probing tissue. The effects of the applied pulses are sensed as a corresponding waveform. The waveforms of the applied and sensed pulses can be integrated to obtain corresponding area values that represent the current and voltage across a spectrum of frequencies. These areas can be compared to obtain a reliable impedance value for the tissue. Frequency response, phase delay, and response to modulated pulse width can also be measured to determine a relative capacitance of the tissue, indicative of infarcted tissue, blood to tissue ratio, degree of edema, and other physiological parameters.Type: GrantFiled: May 31, 2011Date of Patent: November 6, 2012Assignee: Pacesetter, Inc.Inventors: Louis Wong, Cem Shaquer, Gene A. Bornzin, Euljoon Park, Andre Walker, Dorin Panescu, Jiong Xia, Shahrooz Shahparnia
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Publication number: 20120053470Abstract: An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissues, current pulses or voltage pulses having the multi-phasic waveform provide increased specificity and sensitivity in probing tissue. The effects of the applied pulses are sensed as a corresponding waveform. The waveforms of the applied and sensed pulses can be integrated to obtain corresponding area values that represent the current and voltage across a spectrum of frequencies. These areas can be compared to obtain a reliable impedance value for the tissue. Frequency response, phase delay, and response to modulated pulse width can also be measured to determine a relative capacitance of the tissue, indicative of infarcted tissue, blood to tissue ratio, degree of edema, and other physiological parameters.Type: ApplicationFiled: May 31, 2011Publication date: March 1, 2012Inventors: Louis Wong, Cem Shaquer, Gene A. Bornzin, Euljoon Park, Andre Walker, Dorin Panescu, Jiong Xia, Shahrooz Shahparnia
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Patent number: 8065005Abstract: An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissues, current pulses or voltage pulses having the multi-phasic waveform provide increased specificity and sensitivity in probing tissue. The effects of the applied pulses are sensed as a corresponding waveform. The waveforms of the applied and sensed pulses can be integrated to obtain corresponding area values that represent the current and voltage across a spectrum of frequencies. These areas can be compared to obtain a reliable impedance value for the tissue. Frequency response, phase delay, and response to modulated pulse width can also be measured to determine a relative capacitance of the tissue, indicative of infarcted tissue, blood to tissue ratio, degree of edema, and other physiological parameters.Type: GrantFiled: March 12, 2007Date of Patent: November 22, 2011Assignee: Pacesetter, Inc.Inventors: Louis Wong, Cem Shaquer, Gene A. Bornzin, Euljoon Park, Andre Walker, Dorin Panescu, Jiong Xia, Shahrooz Shahparnia
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Patent number: 8010196Abstract: An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissues, current pulses or voltage pulses having the multi-phasic waveform provide increased specificity and sensitivity in probing tissue. The effects of the applied pulses are sensed as a corresponding waveform. The waveforms of the applied and sensed pulses can be integrated to obtain corresponding area values that represent the current and voltage across a spectrum of frequencies. These areas can be compared to obtain a reliable impedance value for the tissue. Frequency response, phase delay, and response to modulated pulse width can also be measured to determine a relative capacitance of the tissue, indicative of infarcted tissue, blood to tissue ratio, degree of edema, and other physiological parameters.Type: GrantFiled: March 12, 2007Date of Patent: August 30, 2011Assignee: Pacesetter, Inc.Inventors: Louis Wong, Cem Shaquer, Gene A. Bornzin, Euljoon Park, Andre Walker, Dorin Panescu, Jiong Xia, Shahrooz Shahparnia
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Patent number: 7925349Abstract: An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissues, current pulses or voltage pulses having the multi-phasic waveform provide increased specificity and sensitivity in probing tissue. The effects of the applied pulses are sensed as a corresponding waveform. The waveforms of the applied and sensed pulses can be integrated to obtain corresponding area values that represent the current and voltage across a spectrum of frequencies. These areas can be compared to obtain a reliable impedance value for the tissue. Frequency response, phase delay, and response to modulated pulse width can also be measured to determine a relative capacitance of the tissue, indicative of infarcted tissue, blood to tissue ratio, degree of edema, and other physiological parameters.Type: GrantFiled: March 12, 2007Date of Patent: April 12, 2011Assignee: Pacesetter, Inc.Inventors: Louis Wong, Cem Shaquer, Gene A. Bornzin, Euljoon Park, Andre Walker, Dorin Panescu, Jiong Xia