Bing Zhu

US Patent:

7756572, Jul 13, 2010

Filed:

Apr 25, 2007

Appl. No.:

11/740175

Inventors:

Mohssen Fard - Woodland Hills CA, US
Xiaoyi Min - Thousand Oaks CA, US
Peter Boileau - Valencia CA, US
Jong Gill - Valencia CA, US
Bing Zhu - Sunnyvale CA, US
Jay Snell - Studio City CA, US
Laleh Jalali - Moorpark CA, US
Josh Reiss - Kirkland WA, US
Gene Bornzin - Simi Valley CA, US

Assignee:

Pacesetter, Inc. - Sylmar CA

International Classification:

A61B 5/0468

US Classification:

600517, 600516

Abstract:

Techniques are described for efficiently detecting and distinguishing among cardiac ischemia, hypoglycemia or hyperglycemia based on intracardiac electrogram (IEGM) signals. In one example, a preliminary indication of an episode of cardiac ischemia is detected based on shifts in ST segment elevation within the IEGM. In response, the implanted device then records additional IEGM data for transmission to an external system. The external system analyzes the additional IEGM data to confirm the detection of cardiac ischemia using a more sophisticated analysis procedure exploiting additional detection parameters. In particular, the external system uses detection parameters capable of distinguishing hypoglycemia, hyperglycemia and hyperkalemia from cardiac ischemia, such as QTmax and QTend intervals. Alternatively, the more sophisticated analysis procedure may be performed by the device itself, if it is so equipped. Other examples described herein pertain instead to the detection of atrial fibrillation.

US Patent:

8467862, Jun 18, 2013

Filed:

Mar 16, 2011

Appl. No.:

13/049805

Inventors:

Jay Snell - Studio City CA, US
Bing Zhu - San Jose CA, US
Katie Hoberman - Winnetka CA, US
Harish Krishnaswamy - Mountain View CA, US

Assignee:

PaceSetter, Inc. - Sylmar CA

International Classification:

A61B 5/04

US Classification:

600509, 600516

Abstract:

Cardiac activity is sensed over a plurality of heart beats defining a beat set. For each beat in the set, it is determined whether the beat is a non-classified beat (e. g. , paced beat, a beat outside of a specified heart rate range or a PVC), or a classified beat. For each classified beat, it is determined whether the beat is a non-detect beat, a minor beat or a major beat. Counts of classified beats, non-classified beats, major beats, minor beats, and non-detect beats are maintained. The beat set is declared to be one of a non-classified set, a major set, a minor set or a non-detect set based on the relative counts of classified beats, non-classified beats, major beats, minor beats, and non-detect beats. Over a period of time, counts of beat-set types are maintained and entry into and exit from ST episodes are determined based on these beat-set counts.

US Patent:

58280731, Oct 27, 1998

Filed:

May 30, 1997

Appl. No.:

8/866920

Inventors:

Bing Bing Zhu - Northridge CA
Monty Mong Chen Fu - Canyon Road CA
Richard L. Green - Simi Valley CA

Assignee:

Syncor International Corporation - Woodland Hills CA

International Classification:

G21F 500

US Classification:

2505061

Abstract:

An improved radiopharmaceutical pig assembly and method for handling syringes containing radioactive material for use in the health care industry. The radiopharmaceutical pig assembly is preferably made of tungsten, is advantageously small, lightweight and has a dual function of also providing shielding for the syringe body during discharge of the syringe. An optional hand shield is also provided.

US Patent:

59273518, Jul 27, 1999

Filed:

May 30, 1997

Appl. No.:

8/866733

Inventors:

Bing Bing Zhu - Northridge CA
Monty Mong Chen Fu - Canyon Country CA
Richard L. Green - Simi Valley CA
Haig S. Bagerdjian - Reseda CA

Assignee:

Syncor International Corp. - Woodland Hills CA

International Classification:

B65B 104

US Classification:

141330

Abstract:

An improved drawing station system for handling radioactive material for use in syringes in the health care industry. The system includes a drawing station, a syringe shield and two different radiopharmaceutical pigs. The drawing station has a base with a support and two arms mounted thereto to support a first radiopharmaceutical pig enclosing a container of radioactive material. The radiopharmaceutical pig is releasably mounted to the second arm so that the radiopharmaceutical pig is pivotable about two predetermined axes to position the container for penetration by the syringe needle to draw radioactive material from the container into the syringe.