Patents by Inventor William A. Dai

William A. Dai 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).

  • Patent number: 10981000
    Abstract: An electrode lead comprises an elongated lead body, at least one lead connector terminal affixed to the proximal end of the lead body, and an electrically insulative cuff body affixed to the distal end of the lead body. The cuff body is configured for being circumferentially disposed around a nerve. The cuff body comprises cutouts, slits, a wrinkled portion, a thin stretchable portion, and/or a serpentine strap, which increases that increase the expandability of the cuff body when disposed around the nerve. The electrode lead further comprises at least one electrode contact affixed to the cuff body, and at least one electrical conductor extending through the lead body between the at least one lead connector terminal and the electrode contact(s). If the cuff body comprises cutouts or slits, the electrode lead can further comprise a thin stretchable film affixed to the cuff body over cutouts or slits.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: April 20, 2021
    Assignee: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: Boon Khai Ng, William Dai
  • Publication number: 20210052893
    Abstract: An electrode lead comprises an electrically insulative cuff body and at least three axially aligned electrode contacts circumferentially disposed along the inner surface of the cuff body when in the furled state. The electrode contacts may be circumferentially disposed around a nerve, and an electrical pulse train may be delivered to the electrode contacts thereby stimulating the nerve to treat obstructive sleep apnea. The electrical pulse train may be one that pre-conditions peripherally located nerve fascicles to not be stimulated, while stimulating centrally located nerve fascicles. A feedback mechanism can be used to titrate electrode contacts and electrical pulse train to the patient. A sensor that is affixed to the case of a neurostimulator can be used to measure physiological artifacts of respiration, and a motion detector can be used to sense tapping of the neurostimulator to toggle the neurostimulator between an ON position and an OFF position.
    Type: Application
    Filed: November 6, 2020
    Publication date: February 25, 2021
    Applicant: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: Harshit Suri, Joseph L. Cakleron, Gregory Frederick Moinar, George S. Goding, JR., Alanie Atyabi, Siegmar Schmidt, William Dai, Brian Dearden, Desmond B. Keenan
  • Publication number: 20210038889
    Abstract: An electrode lead comprises an electrically insulative cuff body and at least three axially aligned electrode contacts circumferentially disposed along the inner surface of the cuff body when in the furled state. The electrode contacts may be circumferentially disposed around a nerve, and an electrical pulse train may be delivered to the electrode contacts thereby stimulating the nerve to treat obstructive sleep apnea. The electrical pulse train may be one that pre-conditions peripherally located nerve fascicles to not be stimulated, while stimulating centrally located nerve fascicles. A feedback mechanism can be used to titrate electrode contacts and electrical pulse train to the patient. A sensor that is affixed to the case of a neurostimulator can be used to measure physiological artifacts of respiration, and a motion detector can be used to sense tapping of the neurostimulator to toggle the neurostimulator between an ON position and an OFF position.
    Type: Application
    Filed: October 29, 2020
    Publication date: February 11, 2021
    Applicant: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: Harshit Suri, Joseph L. Calderon, Gregory Frederick Molnar, George S. Goding, JR., Alanie Atyabi, Siegmar Schmidt, William Dai, Brian Dearden, Desmond B. Keenan
  • Publication number: 20200368526
    Abstract: An electrode lead comprises an electrically insulative cuff body and at least three axially aligned electrode contacts circumferentially disposed along the inner surface of the cuff body when in the furled state. The electrode contacts may be circumferentially disposed around a nerve, and an electrical pulse train may be delivered to the electrode contacts thereby stimulating the nerve to treat obstructive sleep apnea. The electrical pulse train may be one that pre-conditions peripherally located nerve fascicles to not be stimulated, while stimulating centrally located nerve fascicles. A feedback mechanism can be used to titrate electrode contacts and electrical pulse train to the patient. A sensor that is affixed to the case of a neurostimulator can be used to measure physiological artifacts of respiration, and a motion detector can be used to sense tapping of the neurostimulator to toggle the neurostimulator between an ON position and an OFF position.
    Type: Application
    Filed: August 13, 2020
    Publication date: November 26, 2020
    Applicant: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: Harshit Suri, Joseph L. Calderon, Gregory Frederick Molnar, George S. Goding, JR., Alanie Atyabi, Siegmar Schmidt, William Dai, Brian Dearden, Desmond B. Keenan
  • Publication number: 20200355567
    Abstract: Pressure sensors having ring-tensioned membranes are disclosed. A tensioning ring is bonded to a membrane in a manner that results in the tensioning ring applying a tensile force to the membrane, flattening the membrane and reducing or eliminating defects that may have occurred during production. The membrane is bonded to the sensor housing at a point outside the tensioning ring, preventing the process of bonding the membrane to the housing from introducing defects into the tensioned portion of the membrane. A dielectric may be introduced into the gap between the membrane and the counter electrode in a capacitive pressure sensor, resulting in an improved dynamic range.
    Type: Application
    Filed: July 28, 2020
    Publication date: November 12, 2020
    Inventors: Siegmar SCHMIDT, William A. DAI, Boon Khai NG
  • Patent number: 10739218
    Abstract: Pressure sensors having ring-tensioned membranes are disclosed. A tensioning ring is bonded to a membrane in a manner that results in the tensioning ring applying a tensile force to the membrane, flattening the membrane and reducing or eliminating defects that may have occurred during production. The membrane is bonded to the sensor housing at a point outside the tensioning ring, preventing the process of bonding the membrane to the housing from introducing defects into the tensioned portion of the membrane. A dielectric may be introduced into the gap between the membrane and the counter electrode in a capacitive pressure sensor, resulting in an improved dynamic range.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: August 11, 2020
    Assignee: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: Siegmar Schmidt, William A. Dai, Boon Khai Ng
  • Publication number: 20200206501
    Abstract: An electrode lead comprises an electrically insulative cuff body and at least three axially aligned electrode contacts circumferentially disposed along the inner surface of the cuff body when in the furled state. The electrode contacts may be circumferentially disposed around a nerve, and an electrical pulse train may be delivered to the electrode contacts thereby stimulating the nerve to treat obstructive sleep apnea. The electrical pulse train may be one that pre-conditions peripherally located nerve fascicles to not be stimulated, while stimulating centrally located nerve fascicles. A feedback mechanism can be used to titrate electrode contacts and electrical pulse train to the patient. A sensor that is affixed to the case of a neurostimulator can be used to measure physiological artifacts of respiration, and a motion detector can be used to sense tapping of the neurostimulator to toggle the neurostimulator between an ON position and an OFF position.
    Type: Application
    Filed: March 9, 2020
    Publication date: July 2, 2020
    Applicant: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: Harshit Suri, Joseph L Calderon, Gregory Frederick Molnar, George S. Goding, JR., Alanie Atyabi, Siegmar Schmidt, William Dai, Brian Dearden, Desmond B. Keenan
  • Publication number: 20190143110
    Abstract: An electrode lead comprises an electrically insulative cuff body and at least three axially aligned electrode contacts circumferentially disposed along the inner surface of the cuff body when in the furled state. The electrode contacts may be circumferentially disposed around a nerve, and an electrical pulse train may be delivered to the electrode contacts thereby stimulating the nerve to treat obstructive sleep apnea. The electrical pulse train may be one that pre-conditions peripherally located nerve fascicles to not be stimulated, while stimulating centrally located nerve fascicles. A feedback mechanism can be used to titrate electrode contacts and electrical pulse train to the patient. A sensor that is affixed to the case of a neurostimulator can be used to measure physiological artifacts of respiration, and a motion detector can be used to sense tapping of the neurostimulator to toggle the neurostimulator between an ON position and an OFF position.
    Type: Application
    Filed: January 11, 2019
    Publication date: May 16, 2019
    Applicant: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: Harshit Suri, Joseph L. Calderon, Gregory Frederick Molnar, George S. Goding, JR., Alanie Atyabi, Siegmar Schmidt, William Dai, Brian Dearden, Desmond B. Keenan
  • Publication number: 20180318578
    Abstract: An electrode lead comprises an elongated lead body, at least one lead connector terminal affixed to the proximal end of the lead body, and an electrically insulative cuff body affixed to the distal end of the lead body. The cuff body is configured for being circumferentially disposed around a nerve. The cuff body comprises cutouts, slits, a wrinkled portion, a thin stretchable portion, and/or a serpentine strap, which increases that increase the expandability of the cuff body when disposed around the nerve. The electrode lead further comprises at least one electrode contact affixed to the cuff body, and at least one electrical conductor extending through the lead body between the at least one lead connector terminal and the electrode contact(s). If the cuff body comprises cutouts or slits, the electrode lead can further comprise a thin stretchable film affixed to the cuff body over cutouts or slits.
    Type: Application
    Filed: April 30, 2018
    Publication date: November 8, 2018
    Applicant: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: Boon Khai Ng, William Dai
  • Publication number: 20180221660
    Abstract: An electrode lead comprises an electrically insulative cuff body and at least three axially aligned electrode contacts circumferentially disposed along the inner surface of the cuff body when in the furled state. The electrode contacts may be circumferentially disposed around a nerve, and an electrical pulse train may be delivered to the electrode contacts thereby stimulating the nerve to treat obstructive sleep apnea. The electrical pulse train may be one that pre-conditions peripherally located nerve fascicles to not be stimulated, while stimulating centrally located nerve fascicles. A feedback mechanism can be used to titrate electrode contacts and electrical pulse train to the patient. A sensor that is affixed to the case of a neurostimulator can be used to measure physiological artifacts of respiration, and a motion detector can be used to sense tapping of the neurostimulator to toggle the neurostimulator between an ON position and an OFF position.
    Type: Application
    Filed: January 31, 2018
    Publication date: August 9, 2018
    Applicant: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: Harshit Suri, Joseph L. Calderon, Gregory Frederick Molnar, George S. Goding, Jr., Alanie Atyabi, Siegmar Schmidt, William Dai, Brian Dearden, Desmond B. Keenan
  • Publication number: 20170292887
    Abstract: Pressure sensors having ring-tensioned membranes are disclosed. A tensioning ring is bonded to a membrane in a manner that results in the tensioning ring applying a tensile force to the membrane, flattening the membrane and reducing or eliminating defects that may have occurred during production. The membrane is bonded to the sensor housing at a point outside the tensioning ring, preventing the process of bonding the membrane to the housing from introducing defects into the tensioned portion of the membrane. A dielectric may be introduced into the gap between the membrane and the counter electrode in a capacitive pressure sensor, resulting in an improved dynamic range.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 12, 2017
    Inventors: Siegmar Schmidt, William A. Dai, Boon Khai NG
  • Publication number: 20170202513
    Abstract: An implantable pressure sensor device and devices incorporating an implantable pressure sensor are disclosed. The implantable pressure sensor may include a housing with a deflectable wall, and may be incorporated into a housing of an implantable medical device such as an implantable pulse generator. The pressure sensor may monitor respiration by measuring the deflection of the deflectable wall caused by expansion of the thoracic wall or ribcage.
    Type: Application
    Filed: December 9, 2016
    Publication date: July 20, 2017
    Applicant: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: Siegmar Schmidt, William A. Dai
  • Publication number: 20160354602
    Abstract: An upper airway stimulator for treating obstructive sleep apnea is described. In some embodiments, the upper airway stimulator monitors the phase difference between ribcage expansion and abdomen expansion to detect apneic events and stimulates to alleviate those events. In some embodiments, the upper airway stimulator applies primary stimulation when an apneic event is not detected and secondary stimulation when an apneic event is detected. In some embodiments, the upper airway stimulator applies primary stimulation when the patient is not in an apneic position and secondary stimulation when the patient is in an apneic position.
    Type: Application
    Filed: April 7, 2016
    Publication date: December 8, 2016
    Applicant: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: DESMOND B. KEENAN, MORTEN HANSEN, BRIAN R. DEARDEN, SIEGMAR SCHMIDT, WILLIAM A. DAI
  • Publication number: 20160354603
    Abstract: An upper airway stimulator for treating obstructive sleep apnea is described. In some embodiments, the upper airway stimulator monitors the phase difference between ribcage expansion and abdomen expansion to detect apneic events and stimulates to alleviate those events. In some embodiments, the upper airway stimulator applies primary stimulation when an apneic event is not detected and secondary stimulation when an apneic event is detected. In some embodiments, the upper airway stimulator applies primary stimulation when the patient is not in an apneic position and secondary stimulation when the patient is in an apneic position.
    Type: Application
    Filed: April 7, 2016
    Publication date: December 8, 2016
    Applicant: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: DESMOND B. KEENAN, MORTEN HANSEN, BRIAN R. DEARDEN, SIEGMAR SCHMIDT, WILLIAM A. DAI
  • Publication number: 20160354608
    Abstract: An upper airway stimulator for treating obstructive sleep apnea is described. In some embodiments, the upper airway stimulator monitors the phase difference between ribcage expansion and abdomen expansion to detect apneic events and stimulates to alleviate those events. In some embodiments, the upper airway stimulator applies primary stimulation when an apneic event is not detected and secondary stimulation when an apneic event is detected. In some embodiments, the upper airway stimulator applies primary stimulation when the patient is not in an apneic position and secondary stimulation when the patient is in an apneic position.
    Type: Application
    Filed: April 7, 2016
    Publication date: December 8, 2016
    Applicant: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: DESMOND B. KEENAN, MORTEN HANSEN, BRIAN R. DEARDEN, SIEGMAR SCHMIDT, WILLIAM A. DAI
  • Publication number: 20140012314
    Abstract: Cupped forceps are provided. Methods of using a cupped forceps are provided.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 9, 2014
    Applicant: InVivo Therapeutics Corporation
    Inventors: Haining William Dai, Brian Hess, Francis M. Reynolds, David Kosh, Fioleda Prifti
  • Patent number: 8591239
    Abstract: A connector system for Behind-The-Ear (BTE) hearing devices provides a means to detachably connect a variety of accessories to a sound processor, including batteries, earhooks, telecoils, auxiliary microphones, FM receivers, and input jacks for miscellaneous devices. The present invention provides an efficient and economical sealing connection, eliminating the introduction of sweat, body fluid and other contaminants into the connection area, which otherwise would result in corrosion and eventually disable the connected device. A wiping contact formed by a configuration of cam contacts and a flex circuit with a configuration of corresponding contacts is combined with a rotational engagement mechanism to create a vibration-resistant high contact density connector that is moisture proof when engaged.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: November 26, 2013
    Assignee: Advanced Bionics AG
    Inventors: William A. Dai, George Tziviskos
  • Patent number: 8451730
    Abstract: A network device for implementing a high speed transmission protocol. The network device includes a plurality of high speed modules which are connected by a plurality of high speed links. Each of the plurality of high speed modules implements the high speed transmission protocol and each of the plurality of high speed modules being implemented in an Ethernet ring topology. A medium access control layer in each of the plurality of high speed modules is modified in a manner that is transparent to a switching entity in each of the plurality of high speed modules. The high speed transmission protocol comprises a plurality of aspects including an in-banding messaging mechanism for efficient and responsive traffic management and network operation.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: May 28, 2013
    Assignee: Broadcom Corporation
    Inventor: William Dai
  • Patent number: 8411574
    Abstract: A shared memory packet switching device includes: a shared memory providing a shared memory space; an input logic unit associated with at least one receive port, and being operative to determine whether the associated receive port is saturated by determining whether a number of packets received via the associated receive port and currently stored in the shared memory exceeds a drop threshold value; a packet routing control unit operative to determine a destination one of the transmit ports for each of the received data packets; and an output logic unit associated with at least one of the transmit ports, the output logic unit being communicatively coupled with the packet routing control unit, and being operative to determine whether the associated transmit port is congested by determining whether a number of packets currently stored in the shared memory that are to be transmitted via the associated transit port exceeds a congestion threshold value, and also being operative to generate an associated output full
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: April 2, 2013
    Assignee: Broadcom Corporation
    Inventors: Yao-Ching Liu, William Dai, Jason Chao
  • Patent number: 8218539
    Abstract: Various embodiments are disclosed relating to the processing of a flexible field packet. A technique may include determining a format of a packet, the packet including one or more variable fields and determining an offset value related to a location of at least one of the variable fields in the packet, wherein the offset value is variable and associated with the format of the packet.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: July 10, 2012
    Assignee: Broadcom Corporation
    Inventor: William Dai