Patents by Inventor Koon-wah Leong

Koon-wah Leong 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: 8187658
    Abstract: A method of manufacturing an analyte test strip includes positioning a patterned spacer layer between a first insulating layer and a second insulating layer such that the second insulating is disposed above the first insulating layer and a channel is defined between the first and second insulating layers. Moreover, the channel thus defined has a sample-receiving chamber therein, a first port, and a second port. The method also includes coupling a third insulating layer to the first insulating layer such that the third insulating layer is disposed at least partially below the first insulating layer. In the coupling step, the third insulating layer includes a platform portion that extends beyond the first insulating layer and the second insulating layer and the platform portion has an upper surface.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: May 29, 2012
    Assignee: LifeScan, Inc.
    Inventors: John Mahoney, Caroline Chu, Herb Perasso, Susan Tannenbaum, Janice Jones, Koon-Wah Leong, John Christopher Davis
  • Patent number: 8178313
    Abstract: A method for determining (e.g., detecting and/or measuring the concentration of) an analyte in a bodily fluid sample includes obtaining a bodily fluid sample, applying the bodily fluid sample to an analyte test strip, transferring the applied bodily fluid sample to a sample-receiving chamber of the analyte test strip, and determining an analyte in the bodily fluid sample. The analyte test strip employed in the method includes a first port in fluidic communication with the sample-receiving chamber and proximate a platform portion of the analyte test strip. Moreover, the platform portion is configured to receive a first (relatively large) bodily fluid sample of at least 5 micro-liters and transfer at least a portion of the first bodily fluid sample to the sample-receiving chamber via the first port.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: May 15, 2012
    Assignee: LifeScan, Inc.
    Inventors: John Mahoney, Caroline Chu, Herb Perasso, Susan Tannenbaum, Janice Jones, Koon-Wah Leong, John Christopher Davis
  • Patent number: 8173008
    Abstract: A method for determining an analyte in a bodily fluid sample includes inserting the analyte test strip into a test meter. The insertion is such that an electrical connector pin of the test meter travels along an electrical contact pad of the analyte test strip, and across a meter identification feature disposed on the electrical contact pad, during the insertion. Moreover, during the insertion, a signal processing module of the test meter measures an electrical characteristic via the electrical connector pin as the electrical connector pin travels along the electrical contact pad and across the meter identification feature. The method also includes identifying the analyte test strip, using the signal processing module, based on the electrical characteristic measured as the analyte test strip is inserted into the test meter and, thereafter, applying the bodily fluid sample to the analyte test strip upon notification by the test meter that the identification indicates that such applying is appropriate.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: May 8, 2012
    Assignee: LifeScan, Inc.
    Inventor: Koon-wah Leong
  • Patent number: 8001825
    Abstract: Methods of auto-calibrating a meter are disclosed. In one aspect, the method can include determining a set of calibration information applicable to a sensor and storing the calibration information onto a tag element associated with a sensor dispenser. The tag element can be placed into communication with a reader element that is associated with a meter and which is configured to receive the calibration information so as to allow the meter to use the calibration information in a calibration procedure. Various aspects of a system for auto-calibrating a meter are also disclosed.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: August 23, 2011
    Assignee: LifeScan, Inc.
    Inventors: Jerry T. Pugh, Koon-wah Leong, Arjuna Karunaratne
  • Patent number: 7943022
    Abstract: An analyte, system, strip and method are described. In one example, an analyte test strip is provided that includes a substrate, electrically conductive material and an isolated portion of the electrically conductive material. The substrate has a generally planar surface that extends from a first end to a second end. The electrically conductive material is disposed on the generally planar surface to define a plurality of electrodes spaced apart from each other. The isolated portion of the electrically conductive material is disposed between at least two electrodes so that the isolated portion is not in electrical communication with the plurality of electrodes.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: May 17, 2011
    Assignee: Lifescan, Inc.
    Inventors: Maria Teodorczyk, Remedios Dato, Koon-wah Leong
  • Patent number: 7922985
    Abstract: An analyte test strip for accepting diverse bodily fluid sample volumes includes a first insulating layer, a second insulating layer disposed above the first insulating layer, and a third insulating layer disposed below the first insulating layer. The third insulating layer has a platform portion that extends beyond the first and second insulating layers and an upper surface. The analyte test strip also has a patterned spacer layer positioned between the first and second layers. The patterned spacer layer defines a channel between the first and second insulating layers that has a sample-receiving chamber, a first port proximate the platform portion and a second port at an outer edge of the analyte test strip. Moreover, the first port and the second port are in fluidic communication with the sample-receiving chamber.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: April 12, 2011
    Assignee: Lifescan, Inc.
    Inventors: John Mahoney, Caroline Chu, Herb Perasso, Susan Tannenbaum, Janice Jones, Koon-Wah Leong, John Christopher Davis
  • Publication number: 20100326846
    Abstract: A method for determining an analyte in a bodily fluid sample includes inserting the analyte test strip into a test meter. The insertion is such that an electrical connector pin of the test meter travels along an electrical contact pad of the analyte test strip, and across a meter identification feature disposed on the electrical contact pad, during the insertion. Moreover, during the insertion, a signal processing module of the test meter measures an electrical characteristic via the electrical connector pin as the electrical connector pin travels along the electrical contact pad and across the meter identification feature. The method also includes identifying the analyte test strip, using the signal processing module, based on the electrical characteristic measured as the analyte test strip is inserted into the test meter and, thereafter, applying the bodily fluid sample to the analyte test strip upon notification by the test meter that the identification indicates that such applying is appropriate.
    Type: Application
    Filed: June 24, 2009
    Publication date: December 30, 2010
    Applicant: LifeScan, Inc.
    Inventor: Koon-wah Leong
  • Publication number: 20100326824
    Abstract: An analyte test strip (e.g., an electrochemical-based analyte test strip for determining glucose in a bodily fluid sample) for use with a test meter includes a first insulating layer and a electrically conductive layer disposed on the first insulating layer. The electrically conductive layer includes at least one electrode portion and at least one electrical contact pad configured for an electrical connector pin of a test meter to travel therealong during insertion of the analyte test strip into the test meter. In addition, the electrical contact pad is in electrical communication with the electrode portion. The analyte test strip also includes at least one meter identification feature (such as stripes of visually transparent material) disposed on the electrical contact pad such that the electrical connector pin of the test meter travels across the meter identification feature during insertion of the analyte test strip into the test meter.
    Type: Application
    Filed: June 24, 2009
    Publication date: December 30, 2010
    Applicant: LifeScan, Inc.
    Inventor: Koon-wah LEONG
  • Publication number: 20090317297
    Abstract: An analyte test strip for accepting diverse bodily fluid sample volumes includes a first insulating layer, a second insulating layer disposed above the first insulating layer, and a third insulating layer disposed below the first insulating layer. The third insulating layer has a platform portion that extends beyond the first and second insulating layers and an upper surface. The analyte test strip also has a patterned spacer layer positioned between the first and second layers. The patterned spacer layer defines a channel between the first and second insulating layers that has a sample-receiving chamber, a first port proximate the platform portion and a second port at an outer edge of the analyte test strip. Moreover, the first port and the second port are in fluidic communication with the sample-receiving chamber.
    Type: Application
    Filed: June 24, 2008
    Publication date: December 24, 2009
    Inventors: John Mahoney, Caroline Chu, Herb Perasso, Susan Tannenbaum, Janice Jones, Koon-Wah Leong, John Christopher Davis
  • Publication number: 20090317847
    Abstract: A method for determining (e.g., detecting and/or measuring the concentration of) an analyte in a bodily fluid sample includes obtaining a bodily fluid sample, applying the bodily fluid sample to an analyte test strip, transferring the applied bodily fluid sample to a sample-receiving chamber of the analyte test strip, and determining an analyte in the bodily fluid sample. The analyte test strip employed in the method includes a first port in fluidic communication with the sample-receiving chamber and proximate a platform portion of the analyte test strip. Moreover, the platform portion is configured to receive a first (relatively large) bodily fluid sample of at least 5 micro-liters and transfer at least a portion of the first bodily fluid sample to the sample-receiving chamber via the first port.
    Type: Application
    Filed: June 24, 2008
    Publication date: December 24, 2009
    Inventors: John Mahoney, Caroline Chu, Herb Perasso, Susan Tannenbaum, Janice Jones, Koon-Wah Leong, John Christopher Davis
  • Publication number: 20090314425
    Abstract: A method of manufacturing an analyte test strip includes positioning a patterned spacer layer between a first insulating layer and a second insulating layer such that the second insulating is disposed above the first insulating layer and a channel is defined between the first and second insulating layers. Moreover, the channel thus defined has a sample-receiving chamber therein, a first port, and a second port. The method also includes coupling a third insulating layer to the first insulating layer such that the third insulating layer is disposed at least partially below the first insulating layer. In the coupling step, the third insulating layer includes a platform portion that extends beyond the first insulating layer and the second insulating layer and the platform portion has an upper surface.
    Type: Application
    Filed: June 24, 2008
    Publication date: December 24, 2009
    Inventors: John Mahoney, Caroline Chu, Herb Perasso, Susan Tannenbaum, Janice Jones, Koon-Wah Leong, John Christopher Davis
  • Publication number: 20090139300
    Abstract: A method of auto-calibrating a meter is provided herein. The method can include disposing a sensor within a sensor dispenser associated with a tag element wherein the tag element is configured to store a plurality of sensor-specific information as well as communicate the information to a meter. Next, the method can include placing the sensor dispenser into communication with a meter which is configured to receive and retain a sensor from the sensor dispenser, and also configured to receive the sensor-specific information from the tag element thereby allowing the meter to perform an auto-calibration procedure which is at least partially dependent upon the sensor-specific information. Similarly, a system for auto-calibrating a meter is also provided herein. Additionally, various embodiments of a meter and various embodiments a sensor dispenser are also provided herein.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Applicant: LIFESCAN, INC.
    Inventors: Jerry T. Pugh, Koon-wah Leong, Arjuna Karunaratne
  • Publication number: 20090105664
    Abstract: The present invention includes syringes for dispensing liquids. The devices of the invention increase ease of volume control and hence application thereof while minimizing any spillage or fluid migration up the side of the syringe tip.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 23, 2009
    Inventors: Remedios Dato, Koon-wah Leong, Steven Neuenfeldt
  • Publication number: 20090101681
    Abstract: The present invention includes devices for containing and dispensing liquid solutions. The devices of the invention increase ease of sample volume control and, hence, application thereof while minimizing any sample spillage or fluid migration up the side of the dispensing tip. Furthermore, the devices provide ensure adequate sample volume.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 23, 2009
    Inventors: Remedios Dato, Koon-wah Leong
  • Publication number: 20090057146
    Abstract: An analyte, system, strip and method are described. In one example, an analyte test strip is provided that includes a substrate, electrically conductive material and an isolated portion of the electrically conductive material. The substrate has a generally planar surface that extends from a first end to a second end. The electrically conductive material is disposed on the generally planar surface to define a plurality of electrodes spaced apart from each other. The isolated portion of the electrically conductive material is disposed between at least two electrodes so that the isolated portion is not in electrical communication with the plurality of electrodes.
    Type: Application
    Filed: September 4, 2007
    Publication date: March 5, 2009
    Applicant: LifeScan, Inc.
    Inventors: Maria Teodorczyk, Remedios Dato, Koon-wah Leong
  • Patent number: 7361307
    Abstract: A device for accessing biological fluid, sampling biological fluid constituents and determining the concentration of at least one target constituent within the accessed biological fluid is provided. The device has at least one micro-piercing member used to penetrate the skin to a selected depth and to access biological fluid, a constituent sampling means and a constituent measuring means. The constituent sampling means comprises a constituent transfer medium, such as a hydrophilic gel material, by which sampled constituents are transferred from the micro-piercing member to the measuring means. The measuring means includes an electrochemical cell having at least one porous electrode through which at least one sampled constituent is caused to enter into the electrochemical cell. Methods of sampling constituents within the skin and measuring the sampled constituents, as well as kits for practicing the invention are provided.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: April 22, 2008
    Assignee: LifeScan, Inc.
    Inventors: Robert Shartle, Koon-wah Leong, Ernest J. Kiser
  • Patent number: 7144495
    Abstract: Methods and devices for electrochemically detecting a change in the viscosity of a fluid are provided. In the subject methods, a fluid sample (e.g., a whole blood sample) is introduced into an electrochemical test strip's electrochemical cell using a micro-needle integrated into one of oppositely spaced apart working and reference electrodes. An electric potential is applied to the electrochemical cell to first achieve a steady state cell current. A decrease in the steady state cell current is then detected and related to a change in viscosity of the sample. In many embodiments, the sample is blood and the change in viscosity is related to the onset of coagulation in the blood sample, and often the PT of the blood sample. An electrochemical test strip includes an electrochemical cell and an integrated micro-needle. The electrochemical cell includes oppositely spaced apart working and reference electrodes and a reagent mixture (e.g., a redox couple and a coagulation catalyzing agent).
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: December 5, 2006
    Assignee: Lifescan, Inc.
    Inventors: Maria Teodorczyk, Ernest J. Kiser, Lorin P. Olson, Devin McAllister, Vadim V. Yuzhakov, Koon-wah Leong
  • Patent number: 7060192
    Abstract: Methods of fabricating devices for collecting a sample of physiological and for measuring a characteristic, e.g., an analyte concentration, of the sampled physiological sample. The devices are in the form of a test strip which include a biosensor and at least one skin-piercing element which is a planar extension of a portion of the biosensor. The fabrication methods provide various or forming the test strip and the skin-piercing element.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: June 13, 2006
    Assignee: LifeScan, Inc.
    Inventors: Vadim V Yuzhakov, Devin V. McAllister, Lorin Olson, Koon-wah Leong, Maria Teodorczyk, Ernest Kiser
  • Publication number: 20060100656
    Abstract: A compact lancing includes a housing, a moveable lancet holder disposed within the housing and configured to hold a lancet, a launching mechanism disposed within the housing, and arming and trigger mechanisms disposed at least partially within the housing. In addition, the launching mechanism includes a launch spring and a retraction spring. The lancet holder, launching mechanism, arming mechanism and trigger mechanism are operatively connected to lance a target site with a lancet held by the moveable lancet holder. In addition, the retraction spring is configured in an essentially concentric arrangement with the launch spring, thereby providing for compactness in design.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 11, 2006
    Inventors: Lorin Olson, Koon-Wah Leong
  • Publication number: 20060100655
    Abstract: A combined lancing and auxiliary device includes a lancing device with a lancing auxiliary device attached thereto. The lancing auxiliary device can be, for example, a compartment for securely and removably containing items associated or unassociated with lancing, a timer or personal digital assistant device for assisting in documentation, or an illumination device for illuminating a target site. The lancing auxiliary device can be permanently or removably attached to the lancing device.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 11, 2006
    Inventors: Koon-Wah Leong, Priya Talreja, Lorin Olson