Patents by Inventor Shan Wan
Shan Wan 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: 20140107538Abstract: In one general aspect, various embodiments are directed to a surgical instrument that can supply mechanical energy and electrical energy to an end effector of the surgical instrument. The surgical instrument may be operated in a first operating mode in which a transducer of the surgical instrument produces mechanical energy, or vibrations, that are transmitted to the end effector and a second operating mode in which electrical energy, or current, can flow through the end effector to perform electrosurgery. In another general aspect, the surgical instrument may comprise a clamp, or jaw, which can be moved into a closed position to hold tissue against a waveguide, or blade, of the end effector. In the second operating mode of the surgical instrument, current can flow from a power source, through the waveguide, and return to the power source through a path comprising the jaw.Type: ApplicationFiled: December 20, 2013Publication date: April 17, 2014Applicant: Ethicon Endo-Surgery, Inc.Inventors: Eitan T. Wiener, Shan Wan, Daniel W. Price, David K. Norvell, James R. Giordano
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Patent number: 8679206Abstract: In an embodiment, an abrasive compact includes ultra-hard particles which are sintered, bonded, or otherwise consolidated into a solid body. The compact also includes various physical characteristics having a continuous gradient, a multiaxial gradient, or multiple independent gradients.Type: GrantFiled: January 30, 2012Date of Patent: March 25, 2014Assignee: Diamond Innovations, Inc.Inventor: Shan Wan
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Patent number: 8663220Abstract: In one general aspect, various embodiments are directed to a surgical instrument that can supply mechanical energy and electrical energy to an end effector of the surgical instrument. The surgical instrument may be operated in a first operating mode in which a transducer of the surgical instrument produces mechanical energy, or vibrations, that are transmitted to the end effector and a second operating mode in which electrical energy, or current, can flow through the end effector to perform electrosurgery. In another general aspect, the surgical instrument may comprise a clamp, or jaw, which can be moved into a closed position to hold tissue against a waveguide, or blade, of the end effector. In the second operating mode of the surgical instrument, current can flow from a power source, through the waveguide, and return to the power source through a path comprising the jaw.Type: GrantFiled: July 15, 2009Date of Patent: March 4, 2014Assignee: Ethicon Endo-Surgery, Inc.Inventors: Eitan T. Wiener, Shan Wan, Daniel W. Price, David K. Norvell, James R. Giordano
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Patent number: 8650728Abstract: In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce a standing wave of vibrations along a longitudinal axis having a node and an anti-node at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer. In one general aspect, various embodiments are directed to a method of assembling the transducer for the ultrasonic surgical instrument. In various embodiments, the method comprises selecting piezoelectric elements and arranging the piezoelectric elements relative to the node to minimize the difference in magnitude between the currents drawn by the piezoelectric elements.Type: GrantFiled: June 24, 2009Date of Patent: February 18, 2014Assignee: Ethicon Endo-Surgery, Inc.Inventors: Shan Wan, Scott A. Nield, Shawn D. Bialczak, Ashvani K. Madan
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Publication number: 20130274732Abstract: In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a handpiece housing that operably supports an electrical contact assembly therein that is in electrical communication with a signal source. An acoustic assembly is supported within the handpiece housing in rotatable contact with the electrical contact assembly. In various embodiments, the signal source produces at least one of an ultrasonic signal and a radio frequency signal.Type: ApplicationFiled: June 7, 2013Publication date: October 17, 2013Inventors: Eitan T. Wiener, Shan Wan, Daniel W. Price, David K. Norvell, James R. Giordano
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Patent number: 8546999Abstract: In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer.Type: GrantFiled: July 23, 2012Date of Patent: October 1, 2013Assignee: Ethicon Endo-Surgery, Inc.Inventors: Kevin L. Houser, Foster B. Stulen, Scott A. Nield, Shan Wan
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Patent number: 8461744Abstract: In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a handpiece housing that operably supports an electrical contact assembly therein that is in electrical communication with a signal source. An acoustic assembly is supported within the handpiece housing in rotatable contact with the electrical contact assembly. In various embodiments, the signal source produces at least one of an ultrasonic signal and a radio frequency signal.Type: GrantFiled: July 15, 2009Date of Patent: June 11, 2013Assignee: Ethicon Endo-Surgery, Inc.Inventors: Eitan T. Wiener, Shan Wan, Daniel W. Price, David K. Norvell, James R. Giordano
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Patent number: 8344596Abstract: In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer.Type: GrantFiled: June 24, 2009Date of Patent: January 1, 2013Assignee: Ethicon Endo-Surgery, Inc.Inventors: Scott A. Nield, Shan Wan, Ashvani K. Madan
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Patent number: 8334635Abstract: In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer.Type: GrantFiled: June 24, 2009Date of Patent: December 18, 2012Assignee: Ethicon Endo-Surgery, Inc.Inventors: Aaron C. Voegele, Scott A. Nield, Foster B. Stulen, Shan Wan
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Patent number: 8319400Abstract: In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer.Type: GrantFiled: June 24, 2009Date of Patent: November 27, 2012Assignee: Ethicon Endo-Surgery, Inc.Inventors: Kevin L. Houser, Foster B. Stulen, Scott A. Nield, Shan Wan
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Publication number: 20120289984Abstract: In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer.Type: ApplicationFiled: July 23, 2012Publication date: November 15, 2012Applicant: Ethicon Endo-Surgery, Inc.Inventors: Kevin L. Houser, Foster B. Stulen, Scott A. Nield, Shan Wan
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Publication number: 20120151846Abstract: In an embodiment, an abrasive compact includes ultra-hard particles which are sintered, bonded, or otherwise consolidated into a solid body. The compact also includes various physical characteristics having a continuous gradient, a multiaxial gradient, or multiple independent gradients.Type: ApplicationFiled: January 30, 2012Publication date: June 21, 2012Applicant: Diamond Innovations, IncInventor: Shan Wan
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Publication number: 20120059289Abstract: An ultrasonic surgical instrument that has a waveguide that protrudes distally from the handpiece and a surgical tool that is configured to be coupled to the waveguide upon application of thermal energy to the waveguide or the surgical tool.Type: ApplicationFiled: November 15, 2011Publication date: March 8, 2012Applicant: Ethicon Endo-Surgery, Inc.Inventors: Scott A. Nield, David T. Krumanaker, Aaron C. Voegele, Shan Wan
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Publication number: 20110015660Abstract: In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a handpiece housing that operably supports an electrical contact assembly therein that is in electrical communication with a signal source. An acoustic assembly is supported within the handpiece housing in rotatable contact with the electrical contact assembly. In various embodiments, the signal source produces at least one of an ultrasonic signal and a radio frequency signal.Type: ApplicationFiled: July 15, 2009Publication date: January 20, 2011Applicant: Ethicon Endo-Surgery, Inc.Inventors: Eitan T. Wiener, Shan Wan, Daniel W. Price, David K. Norvell, James R. Giordano
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Publication number: 20110015631Abstract: In one general aspect, various embodiments are directed to a surgical instrument that can supply mechanical energy and electrical energy to an end effector of the surgical instrument. The surgical instrument may be operated in a first operating mode in which a transducer of the surgical instrument produces mechanical energy, or vibrations, that are transmitted to the end effector and a second operating mode in which electrical energy, or current, can flow through the end effector to perform electrosurgery. In another general aspect, the surgical instrument may comprise a clamp, or jaw, which can be moved into a closed position to hold tissue against a waveguide, or blade, of the end effector. In the second operating mode of the surgical instrument, current can flow from a power source, through the waveguide, and return to the power source through a path comprising the jaw.Type: ApplicationFiled: July 15, 2009Publication date: January 20, 2011Applicant: Ethicon Endo-Surgery, Inc.Inventors: Eitan T. Wiener, Shan Wan, Daniel W. Price, David K. Norvell, James R. Giordano
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Publication number: 20100331872Abstract: In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer.Type: ApplicationFiled: June 24, 2009Publication date: December 30, 2010Applicant: Ethicon Endo-Surgery, Inc.Inventors: Kevin L. Houser, Foster B. Stulen, Scott A. Nield, Shan Wan
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Publication number: 20100331870Abstract: In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer.Type: ApplicationFiled: June 24, 2009Publication date: December 30, 2010Applicant: Ethicon Endo-Surgery, Inc.Inventors: Shan Wan, Scott A. Nield, Shawn D. Bialczak, Ashvani K. Madan
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Publication number: 20100331871Abstract: In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer.Type: ApplicationFiled: June 24, 2009Publication date: December 30, 2010Applicant: Ethicon Endo-Surgery, Inc.Inventors: Scott A. Nield, Shan Wan, Ashvani K. Madan
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Patent number: D690809Type: GrantFiled: May 31, 2012Date of Patent: October 1, 2013Assignee: Ethicon Endo-Surgery, Inc.Inventors: John V. Hunt, Siliang Chen, Peter B. Madson, Zhang Yang, Shan Wan
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Patent number: D693925Type: GrantFiled: June 1, 2012Date of Patent: November 19, 2013Assignee: Ethicon Endo-Surgery, Inc.Inventors: John V. Hunt, Siliang Chen, Peter B. Madson, Zhang Yang, Shan Wan