Yee C Wong

US Patent:

6696844, Feb 24, 2004

Filed:

Aug 31, 2001

Appl. No.:

09/944421

Inventors:

Yee Chin Wong - Tucson AZ
Andrea J. Yool - Tucson AZ
Kristi A. Hansen - Tucson AZ
Junius E. Taylor - Phoenix AZ

Assignee:

Engineering Research Associates, Inc. - Tucson AZ

International Classification:

G01R 2708

US Classification:

324693, 324663, 324 711, 606 42, 600547

Abstract:

Apparatus for ablating organic material, such as tissue, during an EP procedure generates a monitor signal to provide unambiguous indicia of real time characteristics of the ablation site prior to, during and subsequent to the EP procedure by providing indicia representative of the impedance of the tissue along with indicia of the resistive and reactive components of the impedance. Inorganic materials, such as plastic, can be analyzed, welded or otherwise acted upon and the monitor signal will provide indicia representative of the real time characteristics of the material and change of character thereof. Application of the monitor signal alone can be used to determine the real time characteristics of either organic or inorganic materials to distinguish between healthy and abnormal or diseased tissue and to distinguish between similar inorganic materials having been subjected to different environments or conditions.

US Patent:

8427099, Apr 23, 2013

Filed:

Sep 22, 2009

Appl. No.:

12/564317

Inventors:

Yee Chin Wong - Tucson AZ, US

Assignee:

Haemonetics Corporation - Braintree MA

International Classification:

H02J 7/00

US Classification:

320107, 320112, 320119

Abstract:

A plurality of serially connectable lithium based batteries provide power to a load upon actuation of a user operated switch. Upon actuation of the user operated switch, additional switches intermediate adjacent batteries close to serially connect the batteries to one another and a load. A signal from the load maintains these additional switches closed. A charging circuit is associated with each battery to charge the batteries in parallel upon opening the additional switches. Sensors for temperature, current and various other parameters provide signals to one or more controllers to prevent damage upon the presence of a fault indication signal.

US Patent:

8469688, Jun 25, 2013

Filed:

Feb 8, 2010

Appl. No.:

12/702180

Inventors:

Stephen C. Minney - Tucson AZ, US
Tulsie P. Sumeer - Tucson AZ, US
Yee Chin Wong - Canton MA, US
Joseph G. Augustine - Phoenix AZ, US

Assignee:

Engineering & Research Associates, Inc. - Tucson AZ

International Classification:

B32B 37/04

US Classification:

425135, 425150, 700201

Abstract:

Each platform mounted mold assembly for plastic tubing includes a circuit board containing parameters defining elements of the forming, molding, tipping or welding operation to be undertaken on the tubing. A control unit includes an RF generator for providing the RF energy to effect the forming, molding, tipping or welding process, a source of air under pressure to operate the mechanical elements attendant each mold assembly, various sensors and a multiplex unit. In operation, the control unit serially addresses each of the mold assemblies, senses the parameters attendant the mold and applies the appropriate power level of RF energy for a specific duration and temperature while activating the mechanical aspects of the mold assembly. The mold assemblies may be serially activated through a multiplex unit or in a particular sequence that may be operator controlled.