Patents by Inventor Yong-Lae Park
Yong-Lae Park 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: 20230310249Abstract: Disclosed is a robotic orthosis for a lower extremity for gait rehabilitation training, comprising a knee stretching member which is provided to be installable on the knee so as to enable the knee joint to be stretched in a swing phase and enable a state in which the knee is stretched to be maintained in a stance phase. The knee stretching member comprises: a knee sleeve surrounding the knee joint; and a knee supporting chamber which is mounted so as to be connected to the knee sleeve, and which, when air is introduced therein and is inflated in the swing phase, enables the knee to be stretched by supporting the knee joint, and enables the state in which the knee is stretched to be maintained in the stance phase.Type: ApplicationFiled: March 31, 2021Publication date: October 5, 2023Inventors: Nam-Jong Paik, Jihong Park, Yong-Lae Park, Junghan Kwon
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Publication number: 20230069562Abstract: A bi-stable soft electromagnetic actuator includes a housing including a frame portion formed of a stretchable elastic body, a stretchable coil portion generating an electromagnetic field by applied power, located in the housing, and having a first surface and a second surface facing in mutually opposite directions, and at least a pair of permanent magnet portions respectively facing the first surface and the second surface of the stretchable coil portion and arranged to maintain a distance by the frame portion.Type: ApplicationFiled: August 26, 2022Publication date: March 2, 2023Inventors: Yong Lae PARK, Gyo Wook SHIN, Yeongjin CHOI, Byung Jun JEON, Inrak CHOI
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Publication number: 20220387208Abstract: A non-fixed shoulder brace is provided comprising: an affected shoulder support which is supported on an affected shoulder of a wearer; a waist support coupled to the wearer's waist; an affected arm mounting part in which the wearer's affected arm is inserted and which is supported by means of an affected shoulder strap member from the affected shoulder support; and an affected upper limb exercise assistance apparatus coupled to both ends of the waist support and disposed between the wearer's waist and the affected arm mounting part.Type: ApplicationFiled: June 26, 2020Publication date: December 8, 2022Inventors: Nam-Jong PAIK, Jihong PARK, Jae-Young LIM, Won-Seok KIM, Yong-Lae PARK, Junghan KWON
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Patent number: 11471135Abstract: A biopsy needle has a central axis and includes one or more sensing regions, each sensing region formed by a plurality of sensing optical fibers located over a particular extent of said central axis and inside the outer shell of the needle. The sensing optical fibers are coupled to a wavelength interrogator. A steerable catheter has a central axis and outer shell, the outer shell coupled to a plurality of optical fibers in sensing regions and actuation regions, the sensing regions formed over particular extents of the central axis by bonding gratings to the inner surface of the outer shell, and the actuation regions formed by coupling optical energy into shape memory alloys bonded to the outer shell.Type: GrantFiled: February 11, 2019Date of Patent: October 18, 2022Assignee: Intelligent Fiber Optic Systems, Inc.Inventors: Yong-Lae Park, Richard James Black, Behzad Moslehi, Mark R. Cutkosky, Santhi Elayaperumal, Bruce Daniel, Alan Yeung, Vahid Sotoudeh
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Publication number: 20200360223Abstract: Disclosed is a pneumatic inflatable rehabilitation device including a first fixing band mounted on an upper part of a forearm, a second fixing band mounted on a lower part of the forearm, and at least one rehabilitation band having one side and the other side mounted between the first fixing band and the second fixing band and wound around the forearm at least once.Type: ApplicationFiled: April 13, 2020Publication date: November 19, 2020Inventors: Yong-lae PARK, Se-hun PARK, Dong-wook KIM, Jae-hyun YI
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Patent number: 10562260Abstract: A pneumatic artificial muscle (PAM) actuator body can be formed from an elastic material that includes an inflatable chamber and a restraining component, such as flexible, but inextensible fibers, that causes the actuator to contract when the chamber is inflated with fluid (e.g., air or water). The actuator body can be cylindrical or flat. The actuator body can include a sensor layer formed of an elastic material including a microchannel filled with a conductive fluid to sense the expansion of the actuator body. The sensor layer can be configured to expand when the actuator body is inflated causing the electrical resistance of the conductive fluid to change. A sensor layer between the actuator body and restraining component can be used to measure changes in the contraction force of the actuator and a sensor layer outside of the restraining component can be used to measure changes in the length of the actuator.Type: GrantFiled: January 21, 2014Date of Patent: February 18, 2020Assignee: President and Fellows of Harvard CollegeInventors: Yong-Lae Park, Robert J. Wood, Jobim Jose Robinsantos, Eugene C. Goldfield
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Patent number: 10527507Abstract: An elastic strain sensor can be incorporated into an artificial skin that can sense flexing by the underlying support structure of the skin to detect and track motion of the support structure. The unidirectional elastic strain sensor can be formed by filling two or more channels in an elastic substrate material with a conductive liquid. At the ends of the channels, a loop port connects the channels to form a serpentine channel. The channels extend along the direction of strain and the loop portions have sufficiently large cross-sectional area in the direction transverse to the direction of strain that the sensor is unidirectional. The resistance is measured at the ends of the serpentine channel and can be used to determine the strain on the sensor. Additional channels can be added to increase the sensitivity of the sensor. The sensors can be stacked on top of each other to increase the sensitivity of the sensor.Type: GrantFiled: November 27, 2017Date of Patent: January 7, 2020Assignee: President and Fellows of Harvard CollegeInventors: Robert J. Wood, Yong-Lae Park, Carmel S. Majidi, Bor-rong Chen, Leia Stirling, Conor James Walsh, Radhika Nagpal, Diana Young, Yigit Menguc
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Publication number: 20190192124Abstract: A biopsy needle has a central axis and includes one or more sensing regions, each sensing region formed by a plurality of sensing optical fibers located over a particular extent of said central axis and inside the outer shell of the needle. The sensing optical fibers are coupled to a wavelength interrogator. A steerable catheter has a central axis and outer shell, the outer shell coupled to a plurality of optical fibers in sensing regions and actuation regions, the sensing regions formed over particular extents of the central axis by bonding gratings to the inner surface of the outer shell, and the actuation regions formed by coupling optical energy into shape memory alloys bonded to the outer shell.Type: ApplicationFiled: February 11, 2019Publication date: June 27, 2019Applicant: Intelligent Fiber Optic Systems, Inc.Inventors: Yong-Lae PARK, Richard James BLACK, Behzad MOSLEHI, Mark R. CUTKOSKY, Santhi ELAYAPERUMAL, Bruce DANIEL, Alan YEUNG, Vahid SOTOUDEH
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Patent number: 10238370Abstract: A biopsy needle has a central axis and includes one or more sensing regions, each sensing region formed by a plurality of sensing optical fibers located over a particular extent of said central axis and inside the outer shell of the needle. The sensing optical fibers are coupled to a wavelength interrogator. A steerable catheter has a central axis and outer shell, the outer shell coupled to a plurality of optical fibers in sensing regions and actuation regions, the sensing regions formed over particular extents of the central axis by bonding gratings to the inner surface of the outer shell, and the actuation regions formed by coupling optical energy into shape memory alloys bonded to the outer shell.Type: GrantFiled: January 3, 2014Date of Patent: March 26, 2019Assignee: INTELLIGENT FIBER OPTIC SYSTEMS, INC.Inventors: Yong-Lae Park, Richard James Black, Behzad Moslehi, Mark R. Cutkosky, Santhi Elayaperumal, Bruce Daniel, Alan Yeung, Vahid Sotoudeh
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Publication number: 20180188125Abstract: A stretchable optical sensor that can detect multiple modes of deformation and contact, including pressure, strain, and bending. The method of operation involves a waveguide and a flexible housing, in one embodiment made of silicone rubber. The interface between the two is a reflective layer that encapsulates light propagating through the channel. As the sensor is stretched, compressed, or bent, cracks within the reflective layer form and allow light to escape, resulting in a linear changes to the signal response.Type: ApplicationFiled: July 22, 2016Publication date: July 5, 2018Inventors: Yong-Lae Park, Celeste To
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Publication number: 20180143091Abstract: An elastic strain sensor can be incorporated into an artificial skin that can sense flexing by the underlying support structure of the skin to detect and track motion of the support structure. The unidirectional elastic strain sensor can be formed by filling two or more channels in an elastic substrate material with a conductive liquid. At the ends of the channels, a loop port connects the channels to form a serpentine channel. The channels extend along the direction of strain and the loop portions have sufficiently large cross-sectional area in the direction transverse to the direction of strain that the sensor is unidirectional. The resistance is measured at the ends of the serpentine channel and can be used to determine the strain on the sensor. Additional channels can be added to increase the sensitivity of the sensor. The sensors can be stacked on top of each other to increase the sensitivity of the sensor.Type: ApplicationFiled: November 27, 2017Publication date: May 24, 2018Applicant: President and Fellows of Harvard CollegeInventors: Robert J. Wood, Yong-Lae Park, Carmel S. Majidi, Bor-rong Chen, Leia Stirling, Conor James Walsh, Radhika Nagpal, Diana Young, Yigit Menguc
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Patent number: 9841331Abstract: An elastic strain sensor can be incorporated into an artificial skin that can sense flexing by the underlying support structure of the skin to detect and track motion of the support structure. The uni-directional elastic strain sensor can be formed by filling two or more channels in an elastic substrate material with a conductive liquid. At the ends of the channels, a loop port connects the channels to form a serpentine channel. The channels extend along the direction of strain and the loop portions have sufficiently large cross-sectional area in the direction transverse to the direction of strain that the sensor is unidirectional. The resistance is measured at the ends of the serpentine channel and can be used to determine the strain on the sensor. Additional channels can be added to increase the sensitivity of the sensor. The sensors can be stacked on top of each other to increase the sensitivity of the sensor.Type: GrantFiled: September 24, 2012Date of Patent: December 12, 2017Assignee: President and Fellows of Harvard CollegeInventors: Robert J. Wood, Yong-Lae Park, Carmel S. Majidi, Bor-rong Chen, Leia Stirling, Conor James Walsh, Radhika Nagpal, Diana Young, Yigit Menguc
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Patent number: 9797791Abstract: A sensor including a layer having viscoelastic properties, the layer comprising a void, the void filled with a fluid; and optionally, a more rigid sensing element embedded within the layer. When a force is applied to a surface of the sensor, the shape of the void changes, causing the electrical resistance of the fluid in the void to change. When included, the more rigid sensing element can bear upon the void to cause the electrical resistance of the fluid in the void to change. A direction and intensity of the force can be determined by measuring the change of the electrical resistance of different voids positioned about the sensing element. The layer can be an elastomer, preferably silicone rubber. The fluid can be a conductive liquid, preferably Eutectic Gallium Indium. The sensing element can be plastic and can have a “Joystick” shape. The voids can take the form of channels or microchannels having a predefined pattern and/or shape.Type: GrantFiled: October 22, 2013Date of Patent: October 24, 2017Assignee: President and Fellows of Harvard CollegeInventors: Daniel Vogt, Yong-Lae Park, Robert J. Wood
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Publication number: 20150337874Abstract: A pneumatic artificial muscle (PAM) actuator body can be formed from an elastic material that includes an inflatable chamber and a restraining component, such as flexible, but inextensible fibers, that causes the actuator to contract when the chamber is inflated with fluid (e.g., air or water). The actuator body can be cylindrical or flat. The actuator body can include a sensor layer formed of an elastic material including a microchannel filled with a conductive fluid to sense the expansion of the actuator body. The sensor layer can be configured to expand when the actuator body is inflated causing the electrical resistance of the conductive fluid to change. A sensor layer between the actuator body and restraining component can be used to measure changes in the contraction force of the actuator and a sensor layer outside of the restraining component can be used to measure changes in the length of the actuator.Type: ApplicationFiled: January 21, 2014Publication date: November 26, 2015Inventors: Yong-Lae PARK, Robert J. WOOD, Jobim SANTOS, Eugene C. GOLDFIELD
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Publication number: 20150292968Abstract: A sensor including a layer having viscoelastic properties, the layer comprising a void, the void filled with a fluid; and optionally, a more rigid sensing element embedded within the layer. When a force is applied to a surface of the sensor, the shape of the void changes, causing the electrical resistance of the fluid in the void to change. When included, the more rigid sensing element can bear upon the void to cause the electrical resistance of the fluid in the void to change. A direction and intensity of the force can be determined by measuring the change of the electrical resistance of different voids positioned about the sensing element. The layer can be an elastomer, preferably silicone rubber. The fluid can be a conductive liquid, preferably Eutectic Gallium Indium. The sensing element can be plastic and can have a “Joystick” shape. The voids can take the form of channels or microchannels having a predefined pattern and/or shape.Type: ApplicationFiled: October 22, 2013Publication date: October 15, 2015Inventors: Daniel Vogt, Yong-Lae Park, Robert J. Wood
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Publication number: 20150190123Abstract: A biopsy needle has a central axis and includes one or more sensing regions, each sensing region formed by a plurality of sensing optical fibers located over a particular extent of said central axis and inside the outer shell of the needle. The sensing optical fibers are coupled to a wavelength interrogator. A steerable catheter has a central axis and outer shell, the outer shell coupled to a plurality of optical fibers in sensing regions and actuation regions, the sensing regions formed over particular extents of the central axis by bonding gratings to the inner surface of the outer shell, and the actuation regions formed by coupling optical energy into shape memory alloys bonded to the outer shell.Type: ApplicationFiled: January 3, 2014Publication date: July 9, 2015Applicant: INTELLIGENT FIBER OPTIC SYSTEMS, INC.Inventors: Yong-Lae PARK, Richard James BLACK, Behzad MOSLEHI, Mark R. CUTCOSKY, Santhi Elayaperumal, Bruce DANIEL, Alan YEUNG, Vahid SOTOUDEH
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Publication number: 20150088043Abstract: A flexible orthotic device includes two or more active components embedded in a sheet material. Each active component can include a controller and one or more actuation elements controlled by the controller. The two or more active components can communicate with each other and cause the active components to contract and dynamically change the structural characteristics of the orthotic device. By coordinating the motion of two or more active components, the flexible orthotic device can be programmed to assist or resist the motion of a subject wearing the device. The orthotic device can be effectively employed to provide locomotion assistance, gait rehabilitation, and gait training. Similarly, the orthotic device may be applied to the wrist, elbow, torso, or any other body part. The active components may be actuated to effectively transmit force to a body part, such as a limb, to assist with movement when desired.Type: ApplicationFiled: September 1, 2012Publication date: March 26, 2015Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGEInventors: Eugene C. Goldfield, Yong-lae Park, Bor-rong Chen, Carmel Majidi, Robert J. Wood, Radhika Nagpal
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Publication number: 20140257091Abstract: Aspects of the present disclosure are directed to master-slave apparatuses as well as methods of making and implementing the same. As consistent with one or more embodiments, an apparatus includes a master platform having a manipulation section, and a slave platform mechanically coupled to the master platform and having an interventional-delivery section that secures an interventional tool. The slave platform moves in accordance to three-dimensional movement of the master platform, via supports having a portion thereof fixed relative to the other supports. Each support operates with a respective one of the master and slave platforms for effecting three-dimensional movement of the slave platform, in response to and while tracking (e.g., transmitting) the movement of the master platform, thereby providing control over the interventional tool via the manipulation section of the master platform.Type: ApplicationFiled: March 11, 2014Publication date: September 11, 2014Inventors: Mark R. Cutkosky, Bruce L. Daniel, Santhi Elayaperumal, Pierre Renaud, Yong-Lae Park
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Publication number: 20140238153Abstract: An elastic strain sensor can be incorporated into an artificial skin that can sense flexing by the underlying support structure of the skin to detect and track motion of the support structure. The unidirectional elastic strain sensor can be formed by filling two or more channels in an elastic substrate material with a conductive liquid. At the ends of the channels, a loop port connects the channels to form a serpentine channel. The channels extend along the direction of strain and the loop portions have sufficiently large cross-sectional area in the direction transverse to the direction of strain that the sensor is unidirectional. The resistance is measured at the ends of the serpentine channel and can be used to determine the strain on the sensor. Additional channels can be added to increase the sensitivity of the sensor. The sensors can be stacked on top of each other to increase the sensitivity of the sensor.Type: ApplicationFiled: September 24, 2012Publication date: August 28, 2014Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGEInventors: Robert J. Wood, Yong-Lae Park, Carmel S. Majidi, Bor-rong Chen, Leia Stirling, Connor James Walsh, Radhika Nagpal, Diana Young, Yigit Menguc
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Patent number: 8649847Abstract: A biopsy needle has a central axis and includes one or more sensing regions, each sensing region formed by a plurality of sensing optical fibers located over a particular extent of said central axis and inside the outer shell of the needle. The sensing optical fibers are coupled to a wavelength interrogator. A steerable catheter has a central axis and outer shell, the outer shell coupled to a plurality of optical fibers in sensing regions and actuation regions, the sensing regions formed over particular extents of the central axis by bonding gratings to the inner surface of the outer shell, and the actuation regions formed by coupling optical energy into shape memory alloys bonded to the outer shell.Type: GrantFiled: September 18, 2009Date of Patent: February 11, 2014Assignee: Intelligent Fiber Optic Systems, Inc.Inventors: Yong-Lae Park, Richard James Black, Behzad Moslehi, Mark R. Cutkosky, Santhi Elayaperumal, Bruce Daniel, Alan Yeung, Vahid Sotoudeh