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).
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Publication number: 20170086946Abstract: 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: ApplicationFiled: September 30, 2015Publication date: March 30, 2017Inventors: Tieming RUAN, Sivaramakrishnan KRISHNAMOORTHY, Andrew Murray LICHKUS
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Publication number: 20170014208Abstract: 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: ApplicationFiled: September 29, 2016Publication date: January 19, 2017Applicant: DENTSPLY SIRONA Inc.Inventors: Matthew James Falcone, Neil Verma, Sivaramakrishnan Krishnamoorthy, Tieming Ruan, Calvin Ng, David Zdurne
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Patent number: 9498579Abstract: 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: GrantFiled: May 26, 2010Date of Patent: November 22, 2016Assignee: Becton, Dickinson and CompanyInventor: Tieming Ruan
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Patent number: 9480541Abstract: 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: GrantFiled: October 9, 2013Date of Patent: November 1, 2016Assignee: DENTSPLY International Inc.Inventors: Matthew James Falcone, Neil Verma, Sivaramakrishnan Krishnamoorthy, Tieming Ruan, Calvin Ng, David A. Zdurne
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Patent number: 9375175Abstract: 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: GrantFiled: November 14, 2013Date of Patent: June 28, 2016Assignee: Ascensia Diabetes Care Holdings AGInventors: Tieming Ruan, Scott Hoover
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Publication number: 20160101241Abstract: 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: ApplicationFiled: December 17, 2015Publication date: April 14, 2016Inventors: Tieming Ruan, Abhijitsinh S. Raj, Joshua D. Horvath, Adam Gold
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Patent number: 9233216Abstract: 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: GrantFiled: January 23, 2014Date of Patent: January 12, 2016Assignee: Becton, Dickinson and CompanyInventors: Tieming Ruan, Abhijitsinh S. Raj, Joshua D. Horvath, Adam Gold
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Patent number: 9162030Abstract: 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: GrantFiled: December 19, 2013Date of Patent: October 20, 2015Assignee: Becton, Dickinson and CompanyInventors: Tieming Ruan, Stephen Richards, Eliot Zaiken, Craig Newman, Vadim Goykhman, Joseph Alu, Michael Vincent Quinn
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Patent number: 8998032Abstract: 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: GrantFiled: May 20, 2009Date of Patent: April 7, 2015Assignee: Bayer Healthcare LLCInventors: Rex J. Kuriger, Tieming Ruan
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Patent number: 8940006Abstract: 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: GrantFiled: May 13, 2013Date of Patent: January 27, 2015Assignee: Bayer HealthCare LLCInventors: Mohammad A. Kheiri, Weiping Zhong, Tieming Ruan
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Patent number: 8864783Abstract: 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: GrantFiled: December 17, 2013Date of Patent: October 21, 2014Assignee: Bayer HealthCare LLCInventors: Tieming Ruan, Scott Hoover
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Publication number: 20140303661Abstract: 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: ApplicationFiled: June 20, 2014Publication date: October 9, 2014Inventors: Weiping Zhong, Tieming Ruan, Derek Lok
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Patent number: 8840590Abstract: 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: GrantFiled: February 5, 2009Date of Patent: September 23, 2014Assignee: Becton Dickinson and CompanyInventors: Stephen Lynn Richards, Tieming Ruan
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Publication number: 20140212828Abstract: 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: ApplicationFiled: October 9, 2013Publication date: July 31, 2014Applicant: DENTSPLY INTERNATIONAL INC.Inventors: Matthew James Falcone, Neil Verma, Sivaramakrishnan Krishnamoorthy, Tieming Ruan, Calvin NG, David A. Zdurne
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Patent number: 8784444Abstract: 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: GrantFiled: March 3, 2006Date of Patent: July 22, 2014Assignee: Bayer Healthcare LLCInventors: Weiping Zhong, Tieming Ruan, Derek Lok
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Patent number: 8764706Abstract: 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: GrantFiled: February 4, 2010Date of Patent: July 1, 2014Assignee: Becton, Dickinson and CompanyInventor: Tieming Ruan
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Publication number: 20140171904Abstract: 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: ApplicationFiled: February 21, 2014Publication date: June 19, 2014Applicant: Becton, Dickinson and CompanyInventor: Tieming RUAN
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Publication number: 20140135696Abstract: 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: ApplicationFiled: January 23, 2014Publication date: May 15, 2014Applicant: Becton, Dickinson and CompanyInventors: Tieming Ruan, Abhijitsinh S. Raj, Joshua D. Horvath, Adam Gold
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Publication number: 20140107689Abstract: 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: ApplicationFiled: December 17, 2013Publication date: April 17, 2014Applicant: Bayer HealthCare LLCInventors: Tieming Ruan, Scott Hoover
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Publication number: 20140107586Abstract: 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: ApplicationFiled: December 19, 2013Publication date: April 17, 2014Applicant: BECTON, DICKINSON AND COMPANYInventors: TIEMING RUAN, STEPHEN RICHARDS, ELIOT ZAIKEN, CRAIG NEWMAN, VADIM GOYKHMAN, JOSEPH ALU, MICHAEL VINCENT QUINN