HA T NGUYEN
Nail Technician in Quincy, MA
License number
Massachusetts 3033478
Issued Date
May 26, 2004
Expiration Date
May 29, 2018
Type
Manicurist Type 3
Address
Address
Quincy, MA 02169
Professional information
Method And Apparatus For Monitoring Alteration Of Flow Characteristics In A Liquid Sample
US Patent:
8623280, Jan 7, 2014
Filed:
Nov 16, 2010
Appl. No.:
12/947268
Inventors:
Ian Harding - Wells, GB
Sridhar G. Iyengar - Salem NH, US
Ha Nguyen - Quincy MA, US
Richard Williams - Andover MA, US
Sridhar G. Iyengar - Salem NH, US
Ha Nguyen - Quincy MA, US
Richard Williams - Andover MA, US
Assignee:
AgaMatrix, Inc. - Salem NH
International Classification:
G01N 33/49
US Classification:
422 73, 20440301, 436 69
Abstract:
A device for measuring blood coagulation time is formed from a first substrate; a second substrate; a spacer layer disposed between the first and second substrates, said spacer layer having an opening formed therein defining a sample receiving chamber, a vented sink chamber, and an elongated reservoir forming a conduit for liquid movement between the sample receiving chamber and the sink chamber; a first electrode disposed on the first substrate, said first electrode being exposed in the reservoir portion through a first opening in the spacer layer; and a second electrode disposed on the second substrate, said second electrode being exposed in the reservoir portion through a second opening in the spacer layer. The device of the invention is used in combination with an apparatus that is connected to the first and second electrodes for measuring current flow between the first and second electrodes. Changes in observed current are indicative of flow through the device, and a cessation of flow indicates coagulation.
Method And Apparatus For Monitoring Alteration Of Flow Characteristics In A Liquid Sample
US Patent:
7837941, Nov 23, 2010
Filed:
Apr 7, 2006
Appl. No.:
11/279044
Inventors:
Ian Harding - Somerville MA, US
Sridhar G. Iyengar - Salem NH, US
Ha Nguyen - Quincy MA, US
Richard Williams - Andover MA, US
Sridhar G. Iyengar - Salem NH, US
Ha Nguyen - Quincy MA, US
Richard Williams - Andover MA, US
Assignee:
AgaMatrix, Inc. - Salem NH
International Classification:
G01N 33/49
US Classification:
422 73, 20440301, 436 69
Abstract:
A device for measuring blood coagulation time is formed from a first substrate; a second substrate; a spacer layer disposed between the first and second substrates, said spacer layer having an opening formed therein defining a sample receiving chamber, a vented sink chamber, and an elongated reservoir forming a conduit for liquid movement between the sample receiving chamber and the sink chamber; a first electrode disposed on the first substrate, said first electrode being exposed in the reservoir portion through a first opening in the spacer layer; and a second electrode disposed on the second substrate, said second electrode being exposed in the reservoir portion through a second opening in the spacer layer. The device of the invention is used in combination with an apparatus that is connected to the first and second electrodes for measuring current flow between the first and second electrodes. Changes in observed current are indicative of flow through the device, and a cessation of flow indicates coagulation.