Introduction to electrical_engineering_from_roy_2009
5th Generation ESU Technology Presentation June 2009
1. The Evolution of Electrosurgery (ESU) Analyzer Test Technology 5 th Generation ESU Analyzers Are Here Presented By: Mike Erwine ESU-2000 Series Product Manager BC Group International Inc. www.bcgroupintl.com
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8. Let’s start with some basic FACTS about the electrosurgery industry…
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13. First – What are we measuring? How has generator technology changed?
25. Here’s Where It All Started… A simple incandescent light bulb was actually the very first ESU “Analyzer” to be used. Some major ESU manufacturers still use light bulbs for certain types of go / no-go output tests as well as “tissue response” test loads due to the filament impedance change characteristics to applied high frequency energy. ESU Test Technology History
40. ESU Test Technology History Fluke Biomedical RF303 RS User Manual – showing voltage measurement technique
41. ESU Test Technology History Fluke Biomedical RF303 RS User Manual – showing CQM testing using the main test load bank (50-750 in 50 increments)
42. ESU Test Technology History RF Voltage Measurement… typical capacitive voltage divider technique…
48. ESU Analyzer Summary 3 rd Quarter 2009 Yes <2% on Current (Preliminary Spec) RF Current via Wide Band Current Transformer + DSP 5 BC Biomedical ESU-2400 Current Production No 2.5% on Current 4% on Power RF Current via Wide Band Current Transformer + DSP 5 BC Biomedical ESU-2300 Current Production Yes (ESU-2050P) 1% of Reading on Current RF Current via Wide Band Current Transformer + DSP 5 BC Biomedical ESU-2050 & 2050P 4 4 3 2 2 1 1 1 1 Generation Level No No No No No Yes Yes Yes Yes Pulsed Waveform Compatible 2% on Current Not stated on power or voltage 2.5% on Current 5% on Power 5% on Current 10% on Power 2.5% 100-2000 ma 10% 50 – 99 ma 5% on Power ?? 3% 5% 5% 5% RF Current Measurement Accuracy Fluke Biomedical QA-ES is Current Production Voltage measurement via capacitive voltage divider circuitry Metron QA-ES Fluke Biomedical QA-ES RF-303 RS is Current Production Voltage measurement via capacitive voltage divider circuitry Bio-Tek Instruments RF-303 RS DNI Nevada 402A Dale Technology DALE3000 Fluke Biomedical RF-303 RS Discontinued RF Current via Wide Band Current Transformer + Thermal Converter Dynatech Nevada 454A DNI Nevada 454A Fluke Biomedical 454A Discontinued Resistive Voltage Divider + Thermal Converter Dynatech Nevada 453A Discontinued Resistive Voltage Divider + Thermal Converter Dynatech Nevada 443 Current Production RF Current BC Biomedical ESU-2000A Discontinued RF Current Neurodyne Dempsey 403A Discontinued RF Current Bio-Tek Instruments RF-302 Discontinued RF Current Bio-Tek Instruments RF-301 Product Availability RF Energy Measurement Technique Analyzer
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52. ESU-2050 ESU-2300 First available 5 th Generation Technology Instruments DSP Technology & Unprecedented Precision The result of an 18+ month collaborative partnership with leading worldwide electrosurgery generator manufacturers . BC Biomedical ESU Analyzers 5 th Generation Devices ESU-2400
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63. RF Current Measurement in its simplest form (1 st Generation Analyzers)… RF Current vs: Voltage Measurement
69. RF Current vs: Voltage Measurement “ When comparing readings measured with a V 2 /R device to readings measured with an I 2 R device, total measurement difference will likely be larger than 35%, due to different methods of deriving power.”
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73. RF Current vs: Voltage Measurement The AC impedance of the load is part of the resulting RF current measurement…
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75. Frequency affects the AC impedance of all resistors (and capacitors) in the measurement circuit… not just the load resistor of the analyzer… RF Current vs: Voltage Measurement
76. Frequency affects the AC impedance of all resistors (and capacitors) in the measurement circuit… not just the load resistor of the analyzer… RF Current vs: Voltage Measurement
79. 5 th Generation ESU Analyzers with DSP Technology Ultra High Speed RMS Calculation “Engine” DSP Processing Analyzer Reading Waveform Data Storage Bank
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81. 5 th Generation ESU Analyzers with DSP Technology 100% Compatibility with Pulsed Output Waveforms in generators from Conmed, Erbe, Synergetics, etc. Courtesy of Conmed Electrosurgery…
82. 5 th Generation ESU Analyzers with DSP Technology 100% Compatibility with Pulsed Output Waveforms in generators from Conmed, Erbe, Synergetics, etc. Courtesy of ERBE USA…
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86. 5 th Generation ESU Analyzers with DSP Technology
87. 5 th Generation ESU Analyzers with DSP Technology
88. 5 th Generation ESU Analyzers with DSP Technology
89. 5 th Generation ESU Analyzers with DSP Technology
90. 5 th Generation ESU Analyzers with DSP Technology
91. 5 th Generation ESU Analyzers with DSP Technology
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