Neil D Plotkin from 2900 Sedgefield Ct, Fallston, MD 21047, age 67, Phone: (410)6920256

Prevention Of Electrical Discharges In Polymeric Heat Exchangers
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US Patent:

6497841, Dec 24, 2002
Filed:

Jul 22, 1997
Appl. No.:

08/898559
Inventors:

Neil D. Plotkin - Pasadena CA
Roger J. Elgas - Anaheim CA
Robert F. Gremel - Huntington Beach CA
Robert V. Worrell - Lake Forest CA
Assignee:

Medtronic, Inc. - Minneapolis MN
International Classification:

A61M 114
US Classification:

422 46, 422 44, 422 45, 604 613
Abstract:

A heat exchanger, or the heat exchanger component of a multi-function device, comprising a polymeric heat transfer material. The heat exchanger exhibits reduced voltage-induced breakdown of the polymeric material, which can lead to cross-contamination of the two fluids. Either or both of two approaches may be employed. The first approach modifies the polymeric material to increase its resistance to breakdown. The second approach employs at least one electrical bridge between the fluids in the two sides of the heat exchanger, thus placing the two fluids into electrical equilibrium.

Non-Specific Sensor Array Detectors
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US Patent:

7034677, Apr 25, 2006
Filed:

Jul 21, 2003
Appl. No.:

10/624194
Inventors:

Gregory Steinthal - Los Angeles CA, US
Steven Sunshine - Pasadena CA, US
Tim Burch - San Gabriel CA, US
Neil Plotkin - Pasadena CA, US
Assignee:

Smiths Detection Inc. - Pasadena CA
International Classification:

G08B 1/08
G08B 19/00
US Classification:

34053912, 3405393, 34053911, 34053926, 340511, 340521, 340333, 702 22, 702 60, 422119, 600300, 600301, 128903
Abstract:

Portable and wearable chemical detector devices, such as badges, that are analyte-general, rather than analyte-specific, and which provide an optimal way to notify and protect personnel against known and unknown airborne chemical hazards. The devices are advantageously low-cost, have low-power requirements, may be wearable and are designed to detect and alarm to a general chemical threat. A sensor device includes two or more sensor devices, a processing module coupled to each of the sensor devices and configured to process signals received from each of the two or more sensor devices to determine an environmental state; and a communication module that communicates information about the environmental state to a user.

Chemical And Biological Agent Sensor Array Detectors
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US Patent:

7171312, Jan 30, 2007
Filed:

Oct 29, 2003
Appl. No.:

10/698042
Inventors:

Gregory Steinthal - Los Angeles CA, US
Steven Sunshine - Pasadena CA, US
Tim Burch - San Gabriel CA, US
Neil Plotkin - Pasadena CA, US
Assignee:

Smiths Detection, Inc. - Pasadena CA
International Classification:

G01N 31/00
B32B 5/02
US Classification:

702 32, 422 8202
Abstract:

Chemical and biological detector systems, devices and apparatus. Such devices may be portable and wearable, such as badges, that are analyte-general, rather than analyte-specific, and which provide an optimal way to notify and protect personnel against known and unknown airborne chemical and biological hazards. The devices of the present invention are advantageously low-cost, have low-power requirements, may be wearable and are designed to detect and alarm to a general chemical and biological threat. A sensor device of the present invention in one embodiment includes two or more sensor devices, a processing module coupled to each of the sensor devices and configured to process signals received from each of the two or more sensor devices to determine an environmental state; and a communication module that communicates information about the environmental state to a user.

Autonomous Monitoring Method And System Using Sensors Of Different Sensitivities
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US Patent:

8285493, Oct 9, 2012
Filed:

Jul 25, 2011
Appl. No.:

13/190123
Inventors:

Steven A. Sunshine - Pasadena CA, US
Timothy E. Burch - San Gabriel CA, US
Gregory Steinthal - Los Angeles CA, US
Neil Plotkin - Pasadena CA, US
Assignee:

Smiths Detection Inc. - Edgewood MD
International Classification:

G06F 19/00
G08B 23/00
US Classification:

702 32, 340517
Abstract:

A method and system of monitoring for chemical or other toxic agents includes operating a plurality of first type sensors having a first level of sensitivity to an agent in a monitored area. Concurrently a second type sensor is operated having a second level of sensitivity to the agent in the monitored area, where the second level of sensitivity is at least ten times more sensitive than the first level of sensitivity. Input from the plurality of first type sensors and the second type sensor is received and analyzed, at a central location, in order to determine the presence of the agent in the monitored area.

Autonomous Monitoring Method And System Using Sensors Of Different Sensitivities
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US Patent:

20130158881, Jun 20, 2013
Filed:

Sep 11, 2012
Appl. No.:

13/610465
Inventors:

Steven A. SUNSHINE - Pasadena CA, US
Timothy E. BURCH - San Gabriel CA, US
Gregory STEINTHAL - Los Angeles CA, US
Neil PLOTKIN - Pasadena CA, US
International Classification:

G06F 19/10
US Classification:

702 19
Abstract:

A method and system of monitoring for chemical or other toxic agents includes operating a plurality of first type sensors having a first level of sensitivity to an agent in a monitored area. Concurrently a second type sensor is operated having a second level of sensitivity to the agent in the monitored area, where the second level of sensitivity is at least ten times more sensitive than the first level of sensitivity. Input from the plurality of first type sensors and the second type sensor is received and analyzed, at a central location, in order to determine the presence of the agent in the monitored area.

Method And Apparatus For Creating Pulsatile Flow In A Cardiopulmonary Bypass Circuit
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US Patent:

59281790, Jul 27, 1999
Filed:

Jul 31, 1997
Appl. No.:

8/903950
Inventors:

Neil D. Plotkin - Pasadena CA
Assignee:

Medtronic, Inc. - Minneapolis MN
International Classification:

A61M 3700
US Classification:

604 4
Abstract:

Pulsatile cardiopulmonary flow closely approximating a natural heartbeat is generated in a heart-lung machine by using a proportioning valve to partly convey blood in the machine's cardiopulmonary circuit to the arterial supply line, and to partly recycle that blood into the cardiopulmonary circuit upstream of the arterial pump. The relative proportions of conveying and recycling are varied in accordance with a waveform approximating the waveform of a human heartbeat.

Spray Spun Filter Cartridges For Cardiotomy Filter/Defoamer
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US Patent:

58514864, Dec 22, 1998
Filed:

Apr 30, 1996
Appl. No.:

8/643124
Inventors:

Neil D. Plotkin - Pasadena CA
Assignee:

Medtronic, Inc. - Minneapolis MN
International Classification:

A61M 114
B01D 2700
US Classification:

422 44
Abstract:

A simple, self-supporting cardiotomy filter/defoamer is formed by a 20. mu. m cylindrical spray spun hollow plastic filter cartridge impregnated with an anti-foaming agent.

System For Analyzing Ion Levels In Fluids
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US Patent:

52214575, Jun 22, 1993
Filed:

Sep 23, 1991
Appl. No.:

7/763696
Inventors:

John R. North - Agoura Hills CA
Robert L. Kay - Thousand Oaks CA
Jeff Brown - Seattle WA
Mark Eike - Aliso Viejo CA
Neil Plotkin - Pasadena CA
Assignee:

Porton Diagnostics, Inc. - Westlake Village CA
International Classification:

G01N 27333
US Classification:

204416
Abstract:

A system for analyzing the ion level of a fluid sample including an analyzer instrument, containing electrical circuitry for analyzing the ion level of the fluid sample, in electrical communication with a sensor unit having an ion selective electrode in communication with the fluid sample and electrical contacts for communication with the analyzer instrument. A recharger unit for the analyzer instrument is also disclosed.