Hyun C Cho

US Patent:

6654625, Nov 25, 2003

Filed:

Jun 16, 2000

Appl. No.:

09/595708

Inventors:

James L. Say - Alameda CA
Michael F. Tomasco - Danville CA
Jay D. Audett - Mountain View CA
Hyun Cho - Berkeley CA
Duane O. Yamasaki - El Cerrito CA
Adam Heller - Austin TX

Assignee:

TheraSense, Inc. - Alameda CA

International Classification:

A61B 505

US Classification:

600347, 600345, 600365

Abstract:

An in vivo electrochemical sensor including a working electrode, and an analyte-responsive sensing layer proximate the working electrode. The sensing layer is exposed at an edge of the sensor, wherein the sensor signal is limited, at least in part, by mass transport of analyte to the sensing layer. The sensor is configured and arranged for implantation into the body of a mammal for contact with body fluids of the mammal. The analyte diffuses to the sensing element via the edge of the sensor, thereby restricting mass transport of the analyte to the sensing element. This is because the solution-contacting surface area of the sensor edge is much smaller than an open face of the sensing layer.

US Patent:

6975893, Dec 13, 2005

Filed:

Nov 25, 2003

Appl. No.:

10/723381

Inventors:

James L. Say - Alameda CA, US
Michael F. Tomasco - Danville CA, US
Jay D. Audett - Mountain View CA, US
Hyun Cho - Berkeley CA, US
Duane O. Yamasaki - El Cerrito CA, US
Adam Heller - Austin TX, US

Assignee:

TheraSense, Inc. - Alameda CA

International Classification:

A61B005/05

US Classification:

600347, 600345, 600365, 600373

Abstract:

An in vivo electrochemical sensor including a working electrode, and an analyte-responsive sensing layer proximate the working electrode. The sensing layer is exposed at an edge of the sensor, wherein the sensor signal is limited, at least in part, by mass transport of analyte to the sensing layer. The sensor is configured and arranged for implantation into the body of a mammal for contact with body fluids of the mammal. The analyte diffuses to the sensing element via the edge of the sensor, thereby restricting mass transport of the analyte to the sensing element. This is because the solution-contacting surface area of the sensor edge is much smaller than an open face of the sensing layer.

US Patent:

8268143, Sep 18, 2012

Filed:

Jul 14, 2008

Appl. No.:

12/172589

Inventors:

Zenghe Liu - Alameda CA, US
Tianmei Ouyang - Fremont CA, US
Hyun Cho - Berkeley CA, US
Yohannes Goti - Oakland CA, US
Benjamin J. Feldman - Oakland CA, US
Fei Mao - Fremont CA, US
Adam Heller - Austin TX, US

Assignee:

Abbott Diabetes Care Inc. - Alameda CA

International Classification:

C12Q 1/32

US Classification:

20440301, 20440302, 20440303, 20440304, 20440305, 20440306, 20440307, 20440308, 20440309, 20440312, 20440311

Abstract:

The present invention provides an electrochemical sensor having a sensing chemistry that operates substantially free of any “oxygen effect”. The electrochemical sensors are useful in determining the level of an analyte in a biological sample from a subject. The present invention also provides sensor assemblies including the electrochemical sensors as well as methods of using the same.

US Patent:

20090054746, Feb 26, 2009

Filed:

Sep 30, 2005

Appl. No.:

11/241099

Inventors:

Hyun Cho - Berkeley CA, US

Assignee:

Abbott Diabetes Care, Inc. - Alameda CA

International Classification:

A61B 5/1477
C12Q 1/54

US Classification:

600316, 435 14

Abstract:

Method and apparatus for channeling fluid away from an insertion site having a channel guiding the fluid flow from the insertion site, and a channeling compartment containing absorbent material to wick the fluid such as blood away from the insertion site is provided.

US Patent:

20090259118, Oct 15, 2009

Filed:

Mar 31, 2009

Appl. No.:

12/416126

Inventors:

Benjamin Jay Feldman - Oakland CA, US
Udo Hoss - Castro Valley CA, US
Hyun Cho - Berkeley CA, US

Assignee:

Abbott Diabetes Care Inc. - Alameda CA

International Classification:

A61B 5/1473

US Classification:

600345

Abstract:

Methods and devices to detect analyte in body fluid are provided. Embodiments include analyte sensors designed so that at least a portion of the sensor is positionable beneath a skin surface in the dermal layer.

US Patent:

20100331646, Dec 30, 2010

Filed:

Jun 30, 2009

Appl. No.:

12/495795

Inventors:

Udo Hoss - Castro Valley CA, US
Benjamin Jay Feldman - Oakland CA, US
Hyun Cho - Berkeley CA, US
Marc Barry Taub - Mountain View CA, US
Gary Ashley Stafford - Hayward CA, US

Assignee:

Abbott Diabetes Care Inc. - Alameda CA

International Classification:

A61B 5/1468

US Classification:

600347

Abstract:

Methods and devices to detect analyte in body fluid are provided. Embodiments include analyte sensors designed so that at least a portion of the sensor is positionable beneath a skin surface during analyte monitoring.

US Patent:

20110257495, Oct 20, 2011

Filed:

Apr 14, 2011

Appl. No.:

13/087190

Inventors:

Udo Hoss - Castro Valley CA, US
Benjamin J. Feldman - Oakland CA, US
Zenghe Liu - Alameda CA, US
Hyun Cho - Berkeley CA, US
Benjamin M. Rush - Oakland CA, US

International Classification:

A61B 5/1468

US Classification:

600347

Abstract:

Method and system for determining real time analyte concentration including an analyte sensor having a portion in fluid contact with an interstitial fluid under a skin layer, an on-body electronics including a housing coupled to the analyte sensor and configured for positioning on the skin layer, the on-body electronics housing including a plurality of electrical contacts , on the housing; and a data analysis unit having a data analysis unit housing and a plurality of probes , on the housing. Each of the probes configured to electrically couple to a respective electrical contact when the data analysis unit is positioned in physical contact with the on-body electronics. The one or more signals on the probes correspond to one or more of a substantially real time monitored analyte concentration level (MACL), MACL over a predetermined time period, or a rate of change of the MACL, or combinations thereof, are provided.

US Patent:

20110307631, Dec 15, 2011

Filed:

Jun 8, 2011

Appl. No.:

13/155717

Inventors:

Sangbong Park - Union City CA, US
Cheng Zhang - Saratoga CA, US
Hyun Jin Cho - Cupertino CA, US
Lindsay John Lawrence - Richmond CA, US

International Classification:

G06F 15/16

US Classification:

709248

Abstract:

A method and system for providing asynchronous data communication between a plurality of devices in a networked environment is disclosed. A user using a first device views view media content received from a first content provider of a plurality of service providers. At a request of the user, a message including a data link to the media content is generated and asynchronously sent to a second device via a network. The data link contained in the received message on the second device is used to retrieve the media content from a second content provider. Various action commands contained in the message are used to control the operation of the media content on the second device.