Patents by Inventor Tieming Ruan

Tieming Ruan 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).

  • Publication number: 20170086946
    Abstract: An orthodontic bracket (10) of the type to be bonded to a patient's tooth has a base (22) and a side proximal (20) to a patient's tooth when positioned thereon. Proximal side (20) is provided with flow path regulating structures (30) that define a prescribed flow path for bonding material (32) when the bracket (10) is pressed to a tooth. Areas (40, 50) are provided as catchments for excess bonding material to thereby reduce the occurrence of flash.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 30, 2017
    Inventors: Tieming RUAN, Sivaramakrishnan KRISHNAMOORTHY, Andrew Murray LICHKUS
  • Publication number: 20170014208
    Abstract: The present invention employs a self-ligating orthodontic bracket comprising a body having a pair of laterally spaced gingival tie wings and a pair of laterally spaced occlusal tie wings, the gingival and occlusal tie wings projecting from a labial surface of the body; an arch wire slot extending mesially-distally across the body and between the gingival and occlusal tie wings to accommodate an arch wire; a free-sliding, controlled-locking, or pivoting clip wherein the clip allows placement and removal of the arch wire when in the open position and prevents the displacement of the arch wire from the bracket member when in the closed position.
    Type: Application
    Filed: September 29, 2016
    Publication date: January 19, 2017
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Matthew James Falcone, Neil Verma, Sivaramakrishnan Krishnamoorthy, Tieming Ruan, Calvin Ng, David Zdurne
  • Patent number: 9498579
    Abstract: A safety needle assembly is provided herein having a hub; a needle fixed to the hub; a shield; a tab; a spring disposed between the shield and the hub configured to bias the shield distally; and, a clip disposed between the hub and the shield, the clip having a notch formed thereon shaped to permit passage therethrough of the tab. The clip and the tab releasably retain the shield in a first locked state against the biasing force of the spring thereby limiting distal movement of the shield relative to the hub; yet, in the first locked state, the shield is movable proximally relative to the hub. In the first locked state, the notch is spaced from the tab. The clip and the tab are relatively displaceable so as to align the notch with the tab and release the shield from the first locked state thereby allowing the shield to move distally, relative to the hub, to a second shielded state. In the second shielded state, the distal end of the needle is covered by the shield.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: November 22, 2016
    Assignee: Becton, Dickinson and Company
    Inventor: Tieming Ruan
  • Patent number: 9480541
    Abstract: The present invention employs a self-ligating orthodontic bracket comprising a body having a pair of laterally spaced gingival tie wings and a pair of laterally spaced occlusal tie wings, the gingival and occlusal tie wings projecting from a labial surface of the body; an arch wire slot extending mesially-distally across the body and between the gingival and occlusal tie wings to accommodate an arch wire; a free-sliding, controlled-locking, or pivoting clip wherein the clip allows placement and removal of the arch wire when in the open position and prevents the displacement of the arch wire from the bracket member when in the closed position.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: November 1, 2016
    Assignee: DENTSPLY International Inc.
    Inventors: Matthew James Falcone, Neil Verma, Sivaramakrishnan Krishnamoorthy, Tieming Ruan, Calvin Ng, David A. Zdurne
  • Patent number: 9375175
    Abstract: A lancing mechanism is adapted to move between a resting, cocking and a puncture position. The lancing mechanism comprises a lancet holder adapted to receive a lancet, a shaft attached to the lancet holder, at least one drive spring and at least one damping spring. The drive spring surrounds at least a portion of the shaft and drives the lancing mechanism from the cocking position to the puncture position. The damping spring moves the lancing mechanism from the puncture position to the resting position. The drive spring is located at least partially within the damping spring.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: June 28, 2016
    Assignee: Ascensia Diabetes Care Holdings AG
    Inventors: Tieming Ruan, Scott Hoover
  • Publication number: 20160101241
    Abstract: A pen needle hub and cover for a pen needle assembly that provides tactile and/or audible indicia of proper attachment between the hub of the pen needle and the pen is provided. Such indicia substantially prevent under- and over-torquing of the pen needle. The tactile indicia may include a user sensing a wave of a torque of peak value followed by a torque of lesser value.
    Type: Application
    Filed: December 17, 2015
    Publication date: April 14, 2016
    Inventors: Tieming Ruan, Abhijitsinh S. Raj, Joshua D. Horvath, Adam Gold
  • Patent number: 9233216
    Abstract: A pen needle hub and cover for a pen needle assembly that provides tactile and/or audible indicia of proper attachment between the hub of the pen needle and the pen is provided. Such indicia substantially prevent under- and over-torquing of the pen needle. The tactile indicia may include a user sensing a wave of a torque of peak value followed by a torque of lesser value.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: January 12, 2016
    Assignee: Becton, Dickinson and Company
    Inventors: Tieming Ruan, Abhijitsinh S. Raj, Joshua D. Horvath, Adam Gold
  • Patent number: 9162030
    Abstract: A safety pen needle assembly is provided herein which includes a hub and a needle fixed to the hub. Further, a first shield is provided, along with a second shield which has a biasing element disposed to urge the second shield proximally towards a proximal end of the needle. The assembly further includes a releasable retaining assembly for releasably retaining the second shield in an initial position against the force of the biasing element. A predetermined extent of movement of the first shield causes the retaining assembly to release the second shield. With the second shield being released, the second shield is urged proximally by the biasing element to a second position where the second shield covers the proximal end of the needle. Advantageously, an assembly is provided which allows for passive activation of a shield on a non-patient end of a pen needle assembly by a patient-end shield.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: October 20, 2015
    Assignee: Becton, Dickinson and Company
    Inventors: Tieming Ruan, Stephen Richards, Eliot Zaiken, Craig Newman, Vadim Goykhman, Joseph Alu, Michael Vincent Quinn
  • Patent number: 8998032
    Abstract: A dispensing mechanism is adapted to eject a test sensor from a cartridge opening formed in a cartridge containing test sensors. The dispensing mechanism comprises a gear rack, a gear, and a wheel. The gear rack includes a first portion and a second portion located generally parallel to one another. The second portion of the gear rack includes a first plurality of teeth. The gear includes a second plurality of teeth that are adapted to be engaged by the first plurality of teeth upon movement of the gear rack. The wheel is operatively engaged by the gear and is adapted to dispense the test sensor from the cartridge opening and to seal the cartridge opening. The movement of the gear rack in a first direction causes the gear to rotate causing the wheel to rotate. The rotation of the wheel dispenses the test sensor through the cartridge opening.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: April 7, 2015
    Assignee: Bayer Healthcare LLC
    Inventors: Rex J. Kuriger, Tieming Ruan
  • Patent number: 8940006
    Abstract: A lancing mechanism is adapted to move between resting, cocking and puncture positions and comprises a lancet holder, a shaft, at least one spring and a mass. The shaft is attached to the lancet holder and has an enlarged end opposite the lancet holder. The spring surrounds at least a portion of the shaft and has first and second portions. The second portion of the spring is attached to the lancet holder. The spring drives the lancing mechanism between the cocking and puncture positions. The mass is located along the spring with the first and second portions of the spring extending on opposite sides of the mass. The mass is distinct from the lancet holder. The first portion dampens the lancing mechanism when moving from the puncture position to the resting position.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: January 27, 2015
    Assignee: Bayer HealthCare LLC
    Inventors: Mohammad A. Kheiri, Weiping Zhong, Tieming Ruan
  • Patent number: 8864783
    Abstract: A lancing mechanism is adapted to move between a resting, cocking and a puncture position. The lancing mechanism comprises a lancet holder adapted to receive a lancet, a shaft attached to the lancet holder, at least one drive spring and at least one damping spring. The drive spring surrounds at least a portion of the shaft and drives the lancing mechanism from the cocking position to the puncture position. The damping spring moves the lancing mechanism from the puncture position to the resting position. The drive spring is located at least partially within the damping spring.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: October 21, 2014
    Assignee: Bayer HealthCare LLC
    Inventors: Tieming Ruan, Scott Hoover
  • Publication number: 20140303661
    Abstract: A lancet-release mechanism is adapted to be incorporated into a lancing device. The lancing device is adapted to receive a lancet assembly therein. The lancing device is adapted to move the lancet assembly between a resting position, a cocking position, and a puncture position. The lancet-release mechanism comprises a lancet holder and a cantilever beam. The lancet holder forms a central aperture. The central aperture is adapted to receive the lancet assembly therein. The lancet holder further forms a plurality of protuberances thereon. The cantilever beam has a projection extending therefrom. The projection is adapted to engage the plurality of protuberances located on the lancet holder. The projection is adapted to separate the plurality of protuberances from each other so as to enlarge the central aperture.
    Type: Application
    Filed: June 20, 2014
    Publication date: October 9, 2014
    Inventors: Weiping Zhong, Tieming Ruan, Derek Lok
  • Patent number: 8840590
    Abstract: A safety pen needle assembly is provided herein which includes a tubular carrier (12) having a distal end, a proximal end and a transverse engagement wall (30) located between the proximal and distal ends. The engagement wall includes an aperture (32). A needle (16) is further provided having a distal end, for injection into a patient, and a proximal end, along with a needle hub (14). The needle is fixed to the needle hub so as to move therewith, and the needle hub is disposed in the carrier distally of the engagement wall. The assembly also includes a shield (18) for selectively covering the distal end of the needle. A first biasing element (20) is provided for urging the needle hub from a first hub position where the needle extends through the aperture of the engagement wall to a second hub position where the proximal end of the needle is located distally of a proximally-facing outer surface of the engagement wall.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: September 23, 2014
    Assignee: Becton Dickinson and Company
    Inventors: Stephen Lynn Richards, Tieming Ruan
  • Publication number: 20140212828
    Abstract: The present invention employs a self-ligating orthodontic bracket comprising a body having a pair of laterally spaced gingival tie wings and a pair of laterally spaced occlusal tie wings, the gingival and occlusal tie wings projecting from a labial surface of the body; an arch wire slot extending mesially-distally across the body and between the gingival and occlusal tie wings to accommodate an arch wire; a free-sliding, controlled-locking, or pivoting clip wherein the clip allows placement and removal of the arch wire when in the open position and prevents the displacement of the arch wire from the bracket member when in the closed position.
    Type: Application
    Filed: October 9, 2013
    Publication date: July 31, 2014
    Applicant: DENTSPLY INTERNATIONAL INC.
    Inventors: Matthew James Falcone, Neil Verma, Sivaramakrishnan Krishnamoorthy, Tieming Ruan, Calvin NG, David A. Zdurne
  • Patent number: 8784444
    Abstract: A lancet-release mechanism is adapted to be incorporated into a lancing device. The lancing device is adapted to receive a lancet assembly therein. The lancing device is adapted to move the lancet assembly between a resting position, a cocking position, and a puncture position. The lancet-release mechanism comprises a lancet holder and a cantilever beam. The lancet holder forms a central aperture. The central aperture is adapted to receive the lancet assembly therein. The lancet holder further forms a plurality of protuberances thereon. The cantilever beam has a projection extending therefrom. The projection is adapted to engage the plurality of protuberances located on the lancet holder. The projection is adapted to separate the plurality of protuberances from each other so as to enlarge the central aperture.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: July 22, 2014
    Assignee: Bayer Healthcare LLC
    Inventors: Weiping Zhong, Tieming Ruan, Derek Lok
  • Patent number: 8764706
    Abstract: A pen needle (521) for a drug delivery device (100) includes a hub (511) and a needle (502) fixedly connected to the hub (511). An outer cover (501) removably receives the hub (511) and the needle (502). A locking member (505) locks the hub (511) and the needle (502) in the outer cover (501). The hub (625) may have a colored portion (629) visible to the user to indicate that the needle (623) has been used.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: July 1, 2014
    Assignee: Becton, Dickinson and Company
    Inventor: Tieming Ruan
  • Publication number: 20140171904
    Abstract: A pen needle (521) for a drug delivery device (100) includes a hub (511) and a needle (502) fixedly connected to the hub (511). An outer cover (501) removably receives the hub (511) and the needle (502). A locking member (505) locks the hub (511) and the needle (502) in the outer cover (501). The hub (625) may have a colored portion (629) visible to the user to indicate that the needle (623) has been used.
    Type: Application
    Filed: February 21, 2014
    Publication date: June 19, 2014
    Applicant: Becton, Dickinson and Company
    Inventor: Tieming RUAN
  • Publication number: 20140135696
    Abstract: A pen needle hub and cover for a pen needle assembly that provides tactile and/or audible indicia of proper attachment between the hub of the pen needle and the pen is provided. Such indicia substantially prevent under- and over-torquing of the pen needle. The tactile indicia may include a user sensing a wave of a torque of peak value followed by a torque of lesser value.
    Type: Application
    Filed: January 23, 2014
    Publication date: May 15, 2014
    Applicant: Becton, Dickinson and Company
    Inventors: Tieming Ruan, Abhijitsinh S. Raj, Joshua D. Horvath, Adam Gold
  • Publication number: 20140107689
    Abstract: A lancing mechanism is adapted to move between a resting, cocking and a puncture position. The lancing mechanism comprises a lancet holder adapted to receive a lancet, a shaft attached to the lancet holder, at least one drive spring and at least one damping spring. The drive spring surrounds at least a portion of the shaft and drives the lancing mechanism from the cocking position to the puncture position. The damping spring moves the lancing mechanism from the puncture position to the resting position. The drive spring is located at least partially within the damping spring.
    Type: Application
    Filed: December 17, 2013
    Publication date: April 17, 2014
    Applicant: Bayer HealthCare LLC
    Inventors: Tieming Ruan, Scott Hoover
  • Publication number: 20140107586
    Abstract: A safety pen needle assembly is provided herein which includes a hub and a needle fixed to the hub. Further, a first shield is provided, along with a second shield which has a biasing element disposed to urge the second shield proximally towards a proximal end of the needle. The assembly further includes a releasable retaining assembly for releasably retaining the second shield in an initial position against the force of the biasing element. A predetermined extent of movement of the first shield causes the retaining assembly to release the second shield. With the second shield being released, the second shield is urged proximally by the biasing element to a second position where the second shield covers the proximal end of the needle. Advantageously, an assembly is provided which allows for passive activation of a shield on a non-patient end of a pen needle assembly by a patient-end shield.
    Type: Application
    Filed: December 19, 2013
    Publication date: April 17, 2014
    Applicant: BECTON, DICKINSON AND COMPANY
    Inventors: TIEMING RUAN, STEPHEN RICHARDS, ELIOT ZAIKEN, CRAIG NEWMAN, VADIM GOYKHMAN, JOSEPH ALU, MICHAEL VINCENT QUINN