Patents by Inventor Li-Hsin Han
Li-Hsin Han 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: 20240033401Abstract: The present invention provides an injectable scaffold comprising a plurality of unclad microfibers, and a diluent solution.Type: ApplicationFiled: December 17, 2021Publication date: February 1, 2024Inventors: Li-Hsin Han, Mingkun Wang, Chunxiao Cui, John Todd Lawrence, Maurizio Pacifici
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Patent number: 11384456Abstract: In one embodiment, the present invention is a method for producing microfibers comprising the steps of: (a) providing a base material; (b) forming the base material in a ring; (c) gripping opposing ends of the ring; (d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion; (e) folding the upper portion onto the lower portion; (f) stretching the folded upper and lower portions; and (g) repeating steps (d)-(f) as desired.Type: GrantFiled: October 30, 2020Date of Patent: July 12, 2022Assignee: Drexel UniversityInventors: Li-Hsin Han, Mingkun Wang, Chunxiao Cui, Alisa Morss Clyne, Momtaz Alhindi, Jeffrey Krystek, Victor Micucci, Evan Ostrow, Sabah Shafi, Lin Han, Lanziye He
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Publication number: 20210047758Abstract: In one embodiment, the present invention is a method for producing microfibers comprising the steps of: (a) providing a base material; (b) forming the base material in a ring; (c) gripping opposing ends of the ring; (d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion; (e) folding the upper portion onto the lower portion; (f) stretching the folded upper and lower portions; and (g) repeating steps (d)-(f) as desired.Type: ApplicationFiled: October 30, 2020Publication date: February 18, 2021Inventors: Li-Hsin Han, Mingkun Wang, Chunxiao Cui, Alisa Morss Clyne, Momtaz Alhindi, Jeffrey Krystek, Victor Micucci, Evan Ostrow, Sabah Shafi, Lin Han, Lanziye He
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Patent number: 10837131Abstract: A method for producing microfibers includes the steps of (a) providing a base material; (b) forming the base material in a ring; (c) gripping opposing ends of the ring; (d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion; (e) folding the upper portion onto the lower portion; (f) stretching the folded upper and lower portions; and repeating steps (d)-(f) as desired. Different apparatuses for performing the method are also provided.Type: GrantFiled: November 17, 2017Date of Patent: November 17, 2020Assignee: Drexel UniversityInventors: Li-Hsin Han, Mingkun Wang, Chunxiao Cui, Alisa Morss Clyne, Momtaz Alhindi, Jeffrey Krystek, Victor Micucci, Evan Ostrow, Sabah Shafi, Lin Han, Lanziye He
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Patent number: 10004587Abstract: Macroporous 3-D tissue engineering scaffold comprising elastomeric cross-linked polymer units and interconnected macropores containing living cells are produced by step of: in a mixture of the cells and elastomeric polymer units comprising activatable crosslinking groups, activating the crosslinking groups to form the scaffold.Type: GrantFiled: July 29, 2016Date of Patent: June 26, 2018Assignee: The Board of Trustees for the Leland Stanford Junior UniversityInventors: Fan Yang, Li-Hsin Han, Xinming Tong
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Publication number: 20180171513Abstract: A method for producing microfibers includes the steps of (a) providing a base material; (b) forming the base material in a ring; (c) gripping opposing ends of the ring; (d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion; (e) folding the upper portion onto the lower portion; (f) stretching the folded upper and lower portions; and repeating steps (d)-(f) as desired. Different apparatuses for performing the method are also provided.Type: ApplicationFiled: November 17, 2017Publication date: June 21, 2018Inventors: Li-Hsin Han, Mingkun Wang, Chunxiao Cui, Alisa Morss Clyne, Momtaz Alhindi, Jeffrey Krystek, Victor Micucci, Evan Ostrow, Sabah Shafi, Lin Han, Lanziye He
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Patent number: 9526425Abstract: The embodiments disclosed herein is a system for optical coherence tomographic imaging of turbid (i.e., scattering) materials utilizing multiple channels of information. The multiple channels of information may encompass spatial, angle, spectral and polarization domains. More specifically, the embodiments disclosed herein is related to methods and apparatus for utilizing optical sources, systems or receivers capable of providing (source), processing (system) or recording (receiver) a multiplicity of channels of spectral information for optical coherence tomographic imaging of turbid materials. In these methods and apparatus the multiplicity of channels of spectral information that can be provided by the source, processed by the system, or recorded by the receiver are used to convey simultaneously spatial, spectral or polarimetric information relating to the turbid material being imaged tomographically.Type: GrantFiled: May 29, 2013Date of Patent: December 27, 2016Assignee: Board of Regents, the University of Texas SystemInventors: Marc D. Feldman, Thomas E. Milner, Jung-Hwan Oh, Eunha Kim, Karathik Kumar, Jonathan C. Condit, Robert Grant, Nathaniel J. Kemp, Jihoon Kim, Shaochen Chen, Li-Hsin Han
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Publication number: 20160331508Abstract: Macroporous 3-D tissue engineering scaffold comprising elastomeric cross-linked polymer units and interconnected macropores containing living cells are produced by step of: in a mixture of the cells and elastomeric polymer units comprising activatable crosslinking groups, activating the crosslinking groups to form the scaffold.Type: ApplicationFiled: July 29, 2016Publication date: November 17, 2016Inventors: Fan Yang, Li-Hsin Han, Xinming Tong
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Patent number: 9415138Abstract: Macroporous 3-D tissue engineering scaffold are manufactured by contacting an article comprising multiple distinct macroparticulate porogens distributed within a polymer scaffold, wherein the porogens are selectively and sequentially dissolvable by corresponding biocompatible stimuli.Type: GrantFiled: August 19, 2013Date of Patent: August 16, 2016Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Fan Yang, Li-Hsin Han, Xinming Tong
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Patent number: 9402710Abstract: Macroporous 3-D tissue engineering scaffold comprising elastomeric cross-linked polymer units and interconnected macropores containing living cells are produced by step of: in a mixture of the cells and elastomeric polymer units comprising activatable crosslinking groups, activating the crosslinking groups to form the scaffold.Type: GrantFiled: July 16, 2013Date of Patent: August 2, 2016Assignee: THE BOARD OF TRUSTEES FOR THE LELAND STANFORD JUNIOR UNIVERSITYInventors: Fan Yang, Li-Hsin Han, Xinming Tong
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Publication number: 20150265152Abstract: A catheter imaging probe for a patient. The probe includes a conduit through with energy is transmitted. The probe includes a first portion through which the conduit extends. The probe includes a second portion which rotates relative to the conduit to redirect the energy from the conduit. A method for imaging a patient. The method includes the steps of inserting a catheter into the patient. There is the step of rotating a second portion of the catheter relative to a conduit extending through a first portion of the catheter, which redirects the energy transmitted through the conduit to the patient and receives the energy reflected back to the second portion from the patient and redirects the reflected energy to the conduit.Type: ApplicationFiled: March 30, 2015Publication date: September 24, 2015Inventors: Marc D. Feldman, Thomas E. MILNER, Shaochen CHEN, Jihoon KIM, Li-Hsin HAN, Jung Hwan OH, Ho LEE
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Patent number: 8996099Abstract: A catheter imaging probe for a patient. The probe includes a conduit through with energy is transmitted. The probe includes a first portion through which the conduit extends. The probe includes a second portion which rotates relative to the conduit to redirect the energy from the conduit. A method for imaging a patient. The method includes the steps of inserting a catheter into the patient. There is the step of rotating a second portion of the catheter relative to a conduit extending through a first portion of the catheter, which redirects the energy transmitted through the conduit to the patient and receives the energy reflected back to the second portion from the patient and redirects the reflected energy to the conduit.Type: GrantFiled: December 15, 2009Date of Patent: March 31, 2015Assignee: Board of Regents, The University of Texas SystemInventors: Marc D. Feldman, Thomas E. Milner, Shaochen Chen, Jihoon Kim, Li-Hsin Han, Jung-hwan Oh, Lee Ho
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Publication number: 20140161843Abstract: Macroporous 3-D tissue engineering scaffold are manufactured by contacting an article comprising multiple distinct macroparticulate porogens distributed within a polymer scaffold, wherein the porogens are selectively and sequentially dissolvable by corresponding biocompatible stimuli.Type: ApplicationFiled: August 19, 2013Publication date: June 12, 2014Applicant: Board of Trustees of the Leland Stanford Junior UniversityInventors: Fan Yang, Li-Hsin Han, Xinming Tong
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Publication number: 20140017284Abstract: Macroporous 3-D tissue engineering scaffold comprising elastomeric cross-linked polymer units and interconnected macropores containing living cells are produced by step of: in a mixture of the cells and elastomeric polymer units comprising activatable crosslinking groups, activating the crosslinking groups to form the scaffold.Type: ApplicationFiled: July 16, 2013Publication date: January 16, 2014Inventors: Fan Yang, Li-Hsin Han, Xinming Tong
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Publication number: 20130338495Abstract: The embodiments disclosed herein is related to a system for optical coherence tomographic imaging of turbid (i.e., scattering) materials utilizing multiple channels of information. The multiple channels of information may be comprised and encompass spatial, angle, spectral and polarization domains. More specifically, the embodiments disclosed herein is related to methods and apparatus for utilizing optical sources, systems or receivers capable of providing (source), processing (system) or recording (receiver) a multiplicity of channels of spectral information for optical coherence tomographic imaging of turbid materials. In these methods and apparatus the multiplicity of channels of spectral information that can be provided by the source, processed by the system, or recorded by the receiver are used to convey simultaneously spatial, spectral or polarimetric information relating to the turbid material being imaged tomographically.Type: ApplicationFiled: May 29, 2013Publication date: December 19, 2013Applicant: Board of Regents, The University of Texas SystemInventors: Marc D. Feldman, Thomas E. Milner, Jung-Hwan Oh, Eunha Kim, Karathik Kumar, Jonathan C. Condit, Robert Grant, Nathaniel J. Kemp, Jihoon Kim, Shaochen Chen, Li-Hsin Han
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Patent number: 8540627Abstract: The embodiments disclosed herein is related to a system for optical coherence tomographic imaging of turbid (i.e., scattering) materials utilizing multiple channels of information. The multiple channels of information may be comprised and encompass spatial, angle, spectral and polarization domains. More specifically, the embodiments disclosed herein is related to methods and apparatus for utilizing optical sources, systems or receivers capable of providing (source), processing (system) or recording (receiver) a multiplicity of channels of spectral information for optical coherence tomographic imaging of turbid materials. In these methods and apparatus the multiplicity of channels of spectral information that can be provided by the source, processed by the system, or recorded by the receiver are used to convey simultaneously spatial, spectral or polarimetric information relating to the turbid material being imaged tomographically.Type: GrantFiled: July 7, 2010Date of Patent: September 24, 2013Assignee: Board of Regents, The University of Texas SystemInventors: Marc D. Feldman, Thomas E. Milner, Jung Hwan Oh, Eunha Kim, Karthik Kumar, Chris Condit, Robert Grant, Nate Kemp, Jeehyun Kim, Shaochen Chen, Li-Hsin Han
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Publication number: 20110275947Abstract: Aspects according to the present invention provide a method and implant suitable for implantation inside a human body that includes a power consuming means responsive to a physiological requirement of the human body, a power source and a power storage device. The power source comprises a piezoelectric assembly that is configured to generate an electrical current when flexed by the tissue of the body and communicate the generated current to the power storage device, which is electrically coupled to the power source and to the power consuming means.Type: ApplicationFiled: March 7, 2011Publication date: November 10, 2011Applicant: Board of Regents, The University of Texas SystemInventors: Marc D. Feldman, Shaochen Chen, Li-Hsin Han, Carlos A. Aguilar, Arturo A. Ayon, C. Mauli A Grawal, David M. Lighthart, Devang N. Patel, Steven R. Bailey, Brian A. Korgel, Doh C. Lee, Tushar Sharma, Christopher J. Ellison, Xiaojing Zhang
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Publication number: 20110009701Abstract: The embodiments disclosed herein is related to a system for optical coherence tomographic imaging of turbid (i.e., scattering) materials utilizing multiple channels of information. The multiple channels of information may be comprised and encompass spatial, angle, spectral and polarization domains. More specifically, the embodiments disclosed herein is related to methods and apparatus for utilizing optical sources, systems or receivers capable of providing (source), processing (system) or recording (receiver) a multiplicity of channels of spectral information for optical coherence tomographic imaging of turbid materials. In these methods and apparatus the multiplicity of channels of spectral information that can be provided by the source, processed by the system, or recorded by the receiver are used to convey simultaneously spatial, spectral or polarimetric information relating to the turbid material being imaged tomographically.Type: ApplicationFiled: July 7, 2010Publication date: January 13, 2011Applicant: Board of Regents, The University of Texas SystemInventors: Marc D. Feldman, Thomas E. Milner, Jung Hwan Oh, Eunha Kim, Karthik Kumar, Chris Condit, Robert Grant, Nate Kemp, Jeehyun Kim, Shaochen Chen, Li-Hsin Han
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Patent number: 7783337Abstract: An apparatus is disclosed for studying an object based on at least one of polarization, space, position or angle of light that has reflected from the object. An optical tomographic instrumentation of the apparatus includes a light source coupled to a source path, a sample path, a reference path, and a detection path, wherein the light source generates a spectrally resolved bandwidth. The spectrally resolved bandwidth includes a plurality of spectrally resolved cells and a detector in the detection path for analyzing light reflected from an object in the sample path and the light reflected in the reference path based upon at least one of the polarization, spatial relationship, position or angle domains.Type: GrantFiled: June 5, 2006Date of Patent: August 24, 2010Assignee: Board of Regents, The University of Texas SystemInventors: Marc D. Feldman, Thomas E. Milner, Jung Hwan Oh, Eunha Kim, Karthik Kumar, Chris Condit, Robert Grant, Nate Kemp, Jeehyun Kim, Shaochen Chen, Li-Hsin Han
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Publication number: 20100168587Abstract: A catheter imaging probe for a patient. The probe includes a conduit through with energy is transmitted. The probe includes a first portion through which the conduit extends. The probe includes a second portion which rotates relative to the conduit to redirect the energy from the conduit. A method for imaging a patient. The method includes the steps of inserting a catheter into the patient. There is the step of rotating a second portion of the catheter relative to a conduit extending through a first portion of the catheter, which redirects the energy transmitted through the conduit to the patient and receives the energy reflected back to the second portion from the patient and redirects the reflected energy to the conduit.Type: ApplicationFiled: December 15, 2009Publication date: July 1, 2010Applicant: Board of Regents, the University of Texas SystemInventors: Marc D. Feldman, Thomas E. Milner, Shaochen Chen, Jeehyun Kim, Li-Hsin Han, Jung-Hwan Oh, Ho Lee