Patents by Inventor Brian Shiu
Brian Shiu 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: 20140275756Abstract: Devices, systems and methods for compressing, cutting, incising, reconfiguring, remodeling, attaching, repositioning, supporting, dislocating or altering the composition of tissues or anatomical structures to alter their positional or force relationship to other tissues or anatomical structures. In some applications, the invention may be used to improve patency or fluid flow through a body lumen or cavity (e.g., to limit constriction of the urethra by an enlarged prostate gland).Type: ApplicationFiled: March 13, 2014Publication date: September 18, 2014Applicant: Neotract, Inc.Inventors: Theodore C Bender, Ling-Kang Tong, Joseph Catanese, III, Floria Cheng, Jolene Cutts, James Freitas, Robert George, Theodore C. Lamson, Daniel Merrick, Earl A. Bright, II, Arthur Ferdinand, Timothy A. Limon, Brian Shiu, Shuji Uemura, Zachary Warder-Gabaldon, Michael Gearhart, Matthew McLean, James Niederjohn, Brian Y. Tachibana, Ben Thompson, Andrew L. Johnston, John Stiggelbout
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Publication number: 20140257267Abstract: A microwave antenna assembly is disclosed. The antenna assembly includes an elongated member defining a longitudinal axis and having proximal and distal ends. The antenna assembly also includes an outer conductor and an inner conductor each disposed within the elongated member and extending along the longitudinal axis. A portion of the inner conductor is deployable relative to the outer conductor such that the antenna assembly may transition from a first configuration to a second configuration. The antenna assembly also includes an expandable sheath at least partially disposed about a distal portion of the inner conductor and defining at one or more lumens configured to couple to a supply of dielectric material used to regulate the expansion of the expandable sheath.Type: ApplicationFiled: May 19, 2014Publication date: September 11, 2014Applicant: COVIDIEN LPInventors: BRIAN SHIU, KENLYN S. BONN, MANI N. PRAKASH, TAO NGUYEN
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Patent number: 8808282Abstract: An electrosurgical energy generator apparatus includes a microwave generator configured to supply microwave energy and an RF generator configured to supply RF energy. A power supply is coupled to the microwave generator and the RF generator and is configured to supply power to each of the microwave and RF generators. A first output is coupled to the microwave generator and is configured to deliver microwave energy. A second output is coupled to the RF generator and is configured to deliver RF energy.Type: GrantFiled: March 5, 2007Date of Patent: August 19, 2014Assignee: Covidien LPInventors: Mani N. Prakash, Francesca Rossetto, Steven Kim, Brian Shiu, Thomas J. Fogarty, Sascha Zarins
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Publication number: 20140180269Abstract: A microwave ablation system is provided. The microwave ablation system includes a power source. A microwave antenna is adapted to connect to the power source via a coaxial cable feed including an inner conductor defining a portion of a radiating section of the microwave antenna, an outer conductor and dielectric shielding. The inner conductor loops back around and toward the outer conductor of the coaxial cable feed such that a distal end of the inner conductor is operably disposed adjacent the dielectric shielding. The inner conductor includes one or more reactive components disposed thereon forming a reactively-loaded loop configuration configured to maximize delivery of microwave energy from the power source to tissue such that a desired effect to tissue is achieved.Type: ApplicationFiled: February 25, 2014Publication date: June 26, 2014Applicant: COVIDIEN LPInventors: BRIAN SHIU, JOSEPH D. BRANNAN, MANI N. PRAKASH
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Patent number: 8740893Abstract: A microwave antenna assembly is disclosed. The antenna assembly includes an elongated member defining a longitudinal axis and having proximal and distal ends. The antenna assembly also includes an outer conductor and an inner conductor each disposed within the elongated member and extending along the longitudinal axis. A portion of the inner conductor is deployable relative to the outer conductor such that the antenna assembly may transition from a first configuration to a second configuration. The antenna assembly also includes an expandable sheath at least partially disposed about a distal portion of the inner conductor and defining at one or more lumens configured to couple to a supply of dielectric material used to regulate the expansion of the expandable sheath.Type: GrantFiled: June 30, 2010Date of Patent: June 3, 2014Assignee: Covidien LPInventors: Brian Shiu, Kenlyn S. Bonn, Mani N. Prakash, Tao Nguyen
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Publication number: 20140128862Abstract: A conduit assembly for transmitting energy between an electrosurgical energy generator and an energy delivering device comprises a first cable sub-assembly including a cable having a flexibility and an energy attenuation; a second cable sub-assembly including a cable having a flexibility and an energy attenuation; wherein the flexibility of the cable of the first cable sub-assembly is less than the flexibility of the cable of the second cable sub-assembly; and wherein the energy attenuation of the cable of the first cable sub-assembly is less than the energy attenuation of the cable of the second cable sub-assembly.Type: ApplicationFiled: January 14, 2014Publication date: May 8, 2014Applicant: COVIDIEN LPInventors: FRANCESCA ROSSETTO, MANI N. PRAKASH, BRIAN SHIU
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Patent number: 8672933Abstract: A microwave ablation system is provided. The microwave ablation system includes a power source. A microwave antenna is adapted to connect to the power source via a coaxial cable feed including an inner conductor defining a portion of a radiating section of the microwave antenna, an outer conductor and dielectric shielding. The inner conductor loops back around and toward the outer conductor of the coaxial cable feed such that a distal end of the inner conductor is operably disposed adjacent the dielectric shielding. The inner conductor includes one or more reactive components disposed thereon forming a reactively-loaded loop configuration configured to maximize delivery of microwave energy from the power source to tissue such that a desired effect to tissue is achieved.Type: GrantFiled: June 30, 2010Date of Patent: March 18, 2014Assignee: Covidien LPInventors: Brian Shiu, Joseph D. Brannan, Mani N. Prakash
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Patent number: 8628523Abstract: A conduit assembly for transmitting energy between an electrosurgical energy generator and an energy delivering device comprises a first cable sub-assembly including a cable having a flexibility and an energy attenuation; a second cable sub-assembly including a cable having a flexibility and an energy attenuation; wherein the flexibility of the cable of the first cable sub-assembly is less than the flexibility of the cable of the second cable sub-assembly; and wherein the energy attenuation of the cable of the first cable sub-assembly is less than the energy attenuation of the cable of the second cable sub-assembly.Type: GrantFiled: January 14, 2013Date of Patent: January 14, 2014Assignee: Covidien LPInventors: Francesca Rossetto, Mani N. Prakash, Brian Shiu
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Patent number: 8353901Abstract: A conduit assembly for transmitting energy between an electrosurgical energy generator and an energy delivering device comprises a first cable sub-assembly including a cable having a flexibility and an energy attenuation; a second cable sub-assembly including a cable having a flexibility and an energy attenuation; wherein the flexibility of the cable of the first cable sub-assembly is less than the flexibility of the cable of the second cable sub-assembly; and wherein the energy attenuation of the cable of the first cable sub-assembly is less than the energy attenuation of the cable of the second cable sub-assembly.Type: GrantFiled: May 22, 2007Date of Patent: January 15, 2013Assignee: Vivant Medical, Inc.Inventors: Francesca Rossetto, Mani N. Prakash, Brian Shiu
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Publication number: 20120041433Abstract: A microwave antenna assembly comprising an elongate shaft having proximal and distal ends and a lumen defined therebetween, a conductive member at least partially disposed within the inner lumen of elongate shaft, conductive member being selectively deployable relative to a distal end of elongate shaft from a first condition wherein a distal end of conductive member at least partially abuts the distal end of elongate shaft to a second condition wherein the distal end of conductive member is spaced relative to the distal end of elongate shaft and a first dielectric material disposed between elongate shaft and conductive member, wherein a portion of conductive member is distal to the distal end of elongate shaft and adapted to penetrate tissue.Type: ApplicationFiled: October 26, 2011Publication date: February 16, 2012Applicant: Vivant Medical, Inc.Inventors: Mani N. Prakash, Emilie Johnson, Tao Nguyen, Brian Shiu
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Publication number: 20120004650Abstract: A microwave antenna assembly is disclosed. The antenna assembly includes an elongated member defining a longitudinal axis and having proximal and distal ends. The antenna assembly also includes an outer conductor and an inner conductor each disposed within the elongated member and extending along the longitudinal axis. A portion of the inner conductor is deployable relative to the outer conductor such that the antenna assembly may transition from a first configuration to a second configuration. The antenna assembly also includes an expandable sheath at least partially disposed about a distal portion of the inner conductor and defining at one or more lumens configured to couple to a supply of dielectric material used to regulate the expansion of the expandable sheath.Type: ApplicationFiled: June 30, 2010Publication date: January 5, 2012Inventors: Brian Shiu, Kenlyn S. Bonn, Mani N. Prakash, Tao Nguyen
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Publication number: 20120004651Abstract: A microwave ablation system is provided. The microwave ablation system includes a power source. A microwave antenna is adapted to connect to the power source via a coaxial cable feed including an inner conductor defining a portion of a radiating section of the microwave antenna, an outer conductor and dielectric shielding. The inner conductor loops back around and toward the outer conductor of the coaxial cable feed such that a distal end of the inner conductor is operably disposed adjacent the dielectric shielding. The inner conductor includes one or more reactive components disposed thereon forming a reactively-loaded loop configuration configured to maximize delivery of microwave energy from the power source to tissue such that a desired effect to tissue is achieved.Type: ApplicationFiled: June 30, 2010Publication date: January 5, 2012Inventors: Brian Shiu, Joseph D. Brannan, Mani N. Prakash
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Patent number: 8068921Abstract: A microwave antenna assembly comprising an elongate shaft having proximal and distal ends and a lumen defined therebetween, a conductive member at least partially disposed within the inner lumen of elongate shaft, conductive member being selectively deployable relative to a distal end of elongate shaft from a first condition wherein a distal end of conductive member at least partially abuts the distal end of elongate shaft to a second condition wherein the distal end of conductive member is spaced relative to the distal end of elongate shaft and a first dielectric material disposed between elongate shaft and conductive member, wherein a portion of conductive member is distal to the distal end of elongate shaft and adapted to penetrate tissue.Type: GrantFiled: September 29, 2006Date of Patent: November 29, 2011Assignee: Vivant Medical, Inc.Inventors: Mani N. Prakash, Emilie Johnson, Tao Nguyen, Brian Shiu
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Publication number: 20110270240Abstract: A method of deploying an antenna of an ablation device includes the step of placing an introducing member relative to tissue. The introducing member is disposed on a distal end of a handle member. The method also includes the steps of advancing an antenna distally through the handle member and at least partially through the introducer and rotating the handle member about the longitudinal axis thereof relative to the antenna. The method also includes the step of moving the handle member proximally along the longitudinal axis thereof to retract the introducer proximally relative to the antenna such that the antenna is at least partially deployed relative to the introducer to treat tissue.Type: ApplicationFiled: May 3, 2010Publication date: November 3, 2011Inventors: Brian Shiu, Kyle R. Rick, Mani N. Prakash
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Publication number: 20080294162Abstract: A conduit assembly for transmitting energy between an electrosurgical energy generator and an energy delivering device comprises a first cable sub-assembly including a cable having a flexibility and an energy attenuation; a second cable sub-assembly including a cable having a flexibility and an energy attenuation; wherein the flexibility of the cable of the first cable sub-assembly is less than the flexibility of the cable of the second cable sub-assembly; and wherein the energy attenuation of the cable of the first cable sub-assembly is less than the energy attenuation of the cable of the second cable sub-assembly.Type: ApplicationFiled: May 22, 2007Publication date: November 27, 2008Inventors: Francesca Rossetto, Mani N. Prakash, Brian Shiu
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Publication number: 20080082093Abstract: A microwave antenna assembly comprising an elongate shaft having proximal and distal ends and a lumen defined therebetween, a conductive member at least partially disposed within the inner lumen of elongate shaft, conductive member being selectively deployable relative to a distal end of elongate shaft from a first condition wherein a distal end of conductive member at least partially abuts the distal end of elongate shaft to a second condition wherein the distal end of conductive member is spaced relative to the distal end of elongate shaft and a first dielectric material disposed between elongate shaft and conductive member, wherein a portion of conductive member is distal to the distal end of elongate shaft and adapted to penetrate tissue.Type: ApplicationFiled: September 29, 2006Publication date: April 3, 2008Inventors: Mani N. Prakash, Emilie Johnson, Tao Nguyen, Brian Shiu
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Publication number: 20080051823Abstract: Devices, methods for treatment of obesity, as well as instruments and tools used in placing, adjusting and maintaining devices for treatment of obesity. Various embodiments of devices that are implanted extra-gastrically are provided. Various embodiments of devices that are implanted intra-gastrically are provided. Methods include laparoscopic, percutaneous and/or trans-oral methods. Alternatively, devices describe can generally also be implanted by open surgical procedures.Type: ApplicationFiled: July 24, 2007Publication date: February 28, 2008Inventors: Joshua Makower, Steven Kim, Brian Shiu, Shuji Uemura, Pablo Acosta
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Publication number: 20070270892Abstract: Methods, devices, tools, instruments and systems for treating a patient to induce weight loss. In one method embodiment, a device, including an expandable member in a collapsed configuration, is passed through an opening in the skin of the patient, and into the abdominal cavity of the patient. At least a portion of the expandable member is anchored relative to at least one structure in the abdominal cavity, without piercing the stomach. The expandable member is expanded to an expanded configuration in a space in the abdominal cavity to perform at least one of: prevention of expansion of the stomach of the patient into the space; and compression of a portion of the stomach.Type: ApplicationFiled: June 18, 2007Publication date: November 22, 2007Inventors: Joshua Makower, Theodore Bender, Brian Shiu, Pablo Acosta, Shuji Uemura, Josef Friedmann, Crystine Lee
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Publication number: 20070250092Abstract: Methods, devices, tools and assemblies for treating a patient to effect weight loss. One method embodiment involves passing a device including an expandable member in a collapsed configuration and a buoyancy member through an opening in the skin of a patient and into the abdominal cavity of the patient, and anchoring at least a portion of the expandable member, relative to at least one structure in the abdominal cavity. Devices including at least one expandable member and at least one buoyancy member are provided.Type: ApplicationFiled: June 22, 2007Publication date: October 25, 2007Inventors: Joshua Makower, Theodore Bender, Brian Shiu, Pablo Acosta, Shuji Uemura, Josef Friedmann, Crystine Lee
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Publication number: 20070250095Abstract: Methods, devices, tools and assemblies for treating a patient to effect weight loss. One method embodiment involves passing a device including an expandable member in a collapsed configuration and a buoyancy member through an opening in the skin of a patient and into the abdominal cavity of the patient, and anchoring at least a portion of the expandable member, relative to at least one structure in the abdominal cavity. Devices including at least one expandable member and at least one buoyancy member are provided.Type: ApplicationFiled: June 22, 2007Publication date: October 25, 2007Inventors: Joshua Makower, Theodore Bender, Brian Shiu, Pablo Acosta, Shuji Uemura, Josef Friedmann, Crystine Lee