Patents by Inventor Handani Winarta

Handani Winarta 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: 20200015720
    Abstract: A continuous glucose monitoring system and method has an inserter assembly for inserting a sensor through the skin and into subcutaneous tissue where an inserter housing with the sensor remains on the skin after insertion, a sensor housing cover attachable to the sensor housing after insertion where the sensor housing cover has an electronic module and a battery, and an electronic device equipped with wireless communication for communicating with the electronic module of the sensor housing cover assembly, the electronic device configured for receiving input signals from the sensor, converting the input signals to analyte date, displaying the analyte data on a user interface of the electronic device, storing the data for recall, and creating and/or sending reports of the data.
    Type: Application
    Filed: December 22, 2016
    Publication date: January 16, 2020
    Applicant: Sanvita Medical, LLC
    Inventors: Thomas H. Peterson, Handani Winarta, Anthony Florindi
  • Patent number: 9039874
    Abstract: A disposable urea sensor has a laminated body having a fluid sample inlet end and an electrical contact end, a fluid sample inlet, a substantially flat sample chamber in communication between the fluid sample inlet and a vent opening, the sample chamber being adapted to collect a fluid sample through the fluid sample inlet, a working electrode and a reference electrode within the sample chamber, and a reagent matrix disposed on the working electrode wherein the reagent matrix contains urease.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: May 26, 2015
    Assignee: Nova Biomedical Corporation
    Inventors: Handani Winarta, Jianhong Pei, Mary Lauro, Chung Chang Young, Xiaohua Cai
  • Publication number: 20140069823
    Abstract: A disposable urea sensor has a laminated body having a fluid sample inlet end and an electrical contact end, a fluid sample inlet, a substantially flat sample chamber in communication between the fluid sample inlet and a vent opening, the sample chamber being adapted to collect a fluid sample through the fluid sample inlet, a working electrode and a reference electrode within the sample chamber, and a reagent matrix disposed on the working electrode wherein the reagent matrix contains urease.
    Type: Application
    Filed: November 12, 2013
    Publication date: March 13, 2014
    Applicant: NOVA BIOMEDICAL CORPORATION
    Inventors: Handani Winarta, Jianhong Pei, Mary Lauro, Chung Chang Young, Xiaohua Cai
  • Patent number: 8617366
    Abstract: A disposable urea sensor has a laminated body having a fluid sample inlet end and an electrical contact end, a fluid sample inlet, a substantially flat sample chamber in communication between the fluid sample inlet and a vent opening, the sample chamber being adapted to collect a fluid sample through the fluid sample inlet, a working electrode and a reference electrode within the sample chamber, and a reagent matrix disposed on the working electrode wherein the reagent matrix contains urease.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: December 31, 2013
    Assignee: Nova Biomedical Corporation
    Inventors: Handani Winarta, Jianhong Pei, Mary Lauro, Chung Chang Young, Xiaohua Cai
  • Publication number: 20090223834
    Abstract: A method of compensating for the presence of hematocrit in a blood sample when measuring a blood analyte using a disposable sensor strip. The method includes disposing a blood sample onto a working electrode and a reference electrode of the disposable sensor strip to obtain a concentration of an analyte in the blood sample, measuring a resistance value of the blood sample between the reference electrode and the working electrode, and calculating a corrected concentration of the analyte using the resistance value and a hematocrit equation to correct for the presence of hematocrit in the blood sample.
    Type: Application
    Filed: May 15, 2009
    Publication date: September 10, 2009
    Applicant: NOVA BIOMEDICAL CORPORATION
    Inventors: Xiaohua Cai, Handani Winarta, Chung Chang Young
  • Patent number: 7547383
    Abstract: An improved biosensor having at least a first working electrode and a first electrode material disposed on the first working electrode. The first electrode material is a mixture made by combining at least one enzyme where the at least one enzyme is a capable of reacting with the analyte to be measured, a redox mediator capable of reacting with a product of an enzymatic reaction or a series of enzymatic reactions involving the at least one enzyme, a peroxidase capable of catalyzing a reaction involving the redox mediator where the redox mediator is oxidized, a binder and a surfactant.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: June 16, 2009
    Assignee: Nova Biomedical Corporation
    Inventors: Xiaohua Cai, Handani Winarta, Chung Chang Young
  • Publication number: 20080006530
    Abstract: A sensor strip with capillary flow control has a base layer having a plurality of conductive paths delineated thereon, an electrode forming layer disposed on the base layer, the electrode forming layer having a first opening forming a working electrode, a second opening forming a reference electrode, and a flow-control mechanism, a spacer layer disposed on the electrode forming layer, and a cover layer with a vent opening disposed on the spacer layer and forming a substantially flat sample channel with walls formed by the electrode forming layer, the spacer layer and the cover layer, the substantially flat sample chamber having a sample inlet adjacent a proximal end and the vent opening adjacent a distal end where the substantially flat sample chamber contains the working electrode, the reference electrode and the flow-control mechanism.
    Type: Application
    Filed: June 19, 2006
    Publication date: January 10, 2008
    Inventors: Handani Winarta, Chung Chang Young, Andy Vo, Yu-Tao Chuang, Yu-Feng Chang
  • Publication number: 20070131548
    Abstract: A disposable urea sensor has a laminated body having a fluid sample inlet end and an electrical contact end, a fluid sample inlet, a substantially flat sample chamber in communication between the fluid sample inlet and a vent opening, the sample chamber being adapted to collect a fluid sample through the fluid sample inlet, a working electrode and a reference electrode within the sample chamber, and a reagent matrix disposed on the working electrode wherein the reagent matrix contains urease.
    Type: Application
    Filed: December 12, 2005
    Publication date: June 14, 2007
    Applicant: NOVA BIOMEDICAL CORPORATION
    Inventors: Handani Winarta, Jianhong Pei, Mary Lauro, Chung Young, Xiaohua Cai
  • Patent number: 6942770
    Abstract: A disposable electrode strip for testing a fluid sample including a laminated strip with a first and second end, a vent, an open path for receiving a fluid sample of less than one microliter beginning from the first end and connecting to the vent, a working electrode, a reference electrode and a pseudo-working electrode embedded in the laminated strip within the open path and proximate to the first end, a reagent matrix coextensive within the open path and covering the three electrodes, and conductive contacts located at the second end of the laminated strip.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: September 13, 2005
    Assignee: Nova Biomedical Corporation
    Inventors: Xiaohua Cai, Handani Winarta, Andy Vo, Chung Chang Young
  • Patent number: 6837976
    Abstract: A disposable biosensor for testing a fluid sample including a laminated strip with a first and second end, a reference electrode embedded in the laminated strip proximate to the first end, at least one working electrode embedded in the laminated strip proximate to the first end and the reference electrode, an open path for receiving a fluid sample beginning from the first end and connecting to a vent spaced from the first end, the open path being sufficiently long to expose the reference electrode and the working electrode to the fluid sample, and conductive contacts located at the second end of the laminated strip. The laminated strip has a base layer with a conductive coating, a reagent holding layer, a channel forming layer and a cover having an inlet notch at the first end. The working electrode contains a reagent having an enzyme.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: January 4, 2005
    Assignee: Nova Biomedical Corporation
    Inventors: Xiaohua Cai, Handani Winarta, Andy Vo, Chung Chang Young
  • Publication number: 20040224369
    Abstract: A disposable biosensor for testing a fluid sample including a laminated strip with a first and second end, a reference electrode embedded in the laminated strip proximate to the first end, at least one working electrode embedded in the laminated strip proximate to the first end and the reference electrode, an open path for receiving a fluid sample beginning from the first end and connecting to a vent spaced from the first end, the open path being sufficiently long to expose the reference electrode and the working electrode to the fluid sample, and conductive contacts located at the second end of the laminated strip. The laminated strip has a base layer with a conductive coating, a reagent holding layer, a channel forming layer and a cover having an inlet notch at the first end. The working electrode contains a reagent having an enzyme.
    Type: Application
    Filed: April 19, 2002
    Publication date: November 11, 2004
    Inventors: Xiaohua Cai, Handani Winarta, Andy Vo, Chung Chang Young
  • Publication number: 20040217019
    Abstract: An improved biosensor having at least a first working electrode and a first electrode material disposed on the first working electrode. The first electrode material is a mixture made by combining at least one enzyme where the at least one enzyme is a capable of reacting with the analyte to be measured, a redox mediator capable of reacting with a product of an enzymatic reaction or a series of enzymatic reactions involving the at least one enzyme, a peroxidase capable of catalyzing a reaction involving the redox mediator where the redox mediator is oxidized, a binder and a surfactant.
    Type: Application
    Filed: June 4, 2004
    Publication date: November 4, 2004
    Inventors: Xiaohua Cai, Handani Winarta, Chung Chang Young
  • Patent number: 6767441
    Abstract: An improved biosensor having at least a first working electrode and a first electrode material disposed on the first working electrode. The first electrode material is a mixture made by combining at least one enzyme where the at least one enzyme is a capable of reacting with the analyte to be measured, a redox mediator capable of reacting with a product of an enzymatic reaction or a series of enzymatic reactions involving the at least one enzyme, a peroxidase capable of catalyzing a reaction involving the redox mediator where the redox mediator is oxidized, a binder and a surfactant.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: July 27, 2004
    Assignee: Nova Biomedical Corporation
    Inventors: Xiaohua Cai, Handani Winarta, Chung Chang Young
  • Publication number: 20030196894
    Abstract: A disposable electrode strip for testing a fluid sample including a laminated strip with a first and second end, a vent, an open path for receiving a fluid sample of less than one microliter beginning from the first end and connecting to the vent, a working electrode, a reference electrode and a pseudo-working electrode embedded in the laminated strip within the open path and proximate to the first end, a reagent matrix coextensive within the open path and covering the three electrodes, and conductive contacts located at the second end of the laminated strip.
    Type: Application
    Filed: April 19, 2002
    Publication date: October 23, 2003
    Inventors: Xiaohua Cai, Handani Winarta, Andy Vo, Chung Chang Young
  • Patent number: 6287451
    Abstract: A disposable electrode strip for testing a fluid sample including a laminated strip with a first and second end, a reference electrode embedded in the laminated strip proximate to the first end, at least two working electrodes embedded in the laminated strip proximate to the first end and the reference electrode, an open path for receiving a fluid sample beginning from the first end and being sufficiently long to expose the reference electrode and the working electrodes to the fluid sample, and conductive contacts located at the second end of the laminated strip. The laminated strip has a base layer with a conductive coating, a reagent holding layer, a channel forming layer and a cover. One of the working electrodes contains a reagent substantially similar to the reagent of the reference electrode and a second working electrode contains a reagent having an enzyme.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: September 11, 2001
    Inventors: Handani Winarta, Xiaohua Cai, Fung Seto, Chung Chang Young
  • Patent number: 6258229
    Abstract: A disposable electrode strip for testing a fluid sample including a laminated strip with a first and second end, a vent, an open path for receiving a fluid sample of less than one microliter beginning from the first end and connecting to the vent, a working electrode, a reference electrode and a pseudo-working electrode embedded in the laminated strip within the open path and proximate to the first end, a reagent matrix coextensive within the open path and covering the three electrodes, and conductive contacts located at the second end of the laminated strip.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: July 10, 2001
    Inventors: Handani Winarta, Xiaohua Cai, Fung Seto, Chung Chang Young
  • Patent number: 6197172
    Abstract: An electrochemical sensor with a gelled membrane for prolonging the useful life of an ion-selective electrode. The gelled membrane is a hydrophilic membrane having a specially-formulated gel layer coated on one side. The gel-coated side of the gelled membrane is in intimate contact with the ion-selective membrane and separates the ion-selective membrane from the test samples and the calibration and cleaning fluids. The gelled membrane is a semi-permeable barrier which allows passage of the species to be measured while inhibiting the passage of surfactant and proteinaceous material into the polymeric ion-selective membrane.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: March 6, 2001
    Inventors: David H. Dicks, Handani Winarta, John Hiti, Nicole Pouliot, Jeffrey C. Chien, Chung Chang Young
  • Patent number: 5352348
    Abstract: Disclosed is a method of assaying a high concentration of a substance in a liquid sample with a polarographic cell. The cell contains an electrode assembly that includes a reference electrode and a hydrogen peroxide sensor electrode having a laminated membrane covering the liquid sample contacting face of the sensor electrode. The laminated membrane includes an outer membrane permeable to the substance and oxygen, an inner membrane permeable to hydrogen peroxide and located adjacent the face of the sensor electrode, and an enzyme layer between the inner and outer membrane; the enzyme in the enzyme layer can oxidize the substance to generate hydrogen peroxide.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: October 4, 1994
    Assignee: Nova Biomedical Corporation
    Inventors: Chung Chang Young, Handani Winarta
  • Patent number: 4759828
    Abstract: An electrode assembly for polarographic assay of glucose in solution having a laminated membrane, the outer membrane being from 1 to 20 .mu.m thick and having a pore size of 10 to 125 .ANG., the inner membrane having a thickness of 2 to 4 .mu.m, and bonded to the outer membrane with immobilized glucose oxidase. Rapid assays are carried out by measuring the current difference before equilibrium is attained and at least 5 seconds after initial contact of sample with the outer membrane.
    Type: Grant
    Filed: April 9, 1987
    Date of Patent: July 26, 1988
    Assignee: Nova Biomedical Corporation
    Inventors: Chung C. Young, Kenneth Gary, Handani Winarta, Chin-Chun Chen
  • Patent number: RE41264
    Abstract: An improved biosensor having at least a first working electrode and a first electrode material disposed on the first working electrode. The first electrode material is a mixture made by combining at least one enzyme where the at least one enzyme is a capable of reacting with the analyte to be measured, a redox mediator capable of reacting with a product of an enzymatic reaction or a series of enzymatic reactions involving the at least one enzyme, a peroxidase capable of catalyzing a reaction involving the redox mediator where the redox mediator is oxidized, a binder and a surfactant.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: April 27, 2010
    Assignee: Nova Biomedical Corporation
    Inventors: Xiaohua Cai, Handani Winarta, Chung Chang Young