John G. Webster Professor Emeritus Address/E-mail Program Affiliations Courses Education Fields of Interest Publications Summary Files and Links

Contact Information

2148 Engineering Centers Building 1550 Engineering Drive Madison, WI 53706

Tel: 608/263-1574 Fax: 608/265-9239 E-mail: webster@engr.wisc.edu

Program Affiliations

• Biomedical Engineering

• Biomedical Engineering Center for Translational Research

Courses

• BME 200: Biomedical Engineering Design
• BME 310: Introduction to Biomedical Instrumentation
• BME 462: Medical Instrumentation
• BME 515: Therapeutic Medical Devices
• BME 762: Biomedical Instrumentation

Education

• PhD 1967, University of Rochester

Fields of Interest

• medical instrumentation
• radio-frequency and microwave hepatic ablation
• safety of less-lethal electromuscular incapacitation device (EMD): stun guns and Tasers
• biopotential amplifiers and interference
• bioelectrodes

Publications

• View publications on file with the National Library of Medicine.

Summary

My graduate students and I are involved in the following research.

Chewing sounds for estimating caloric input

We are working with Department of Nutrition Professor Dale Schoeller to develop a system for estimating caloric input. We have developed a miniature microphone that fits comfortably in the ear to measure chewing sounds. We are developing recording systems to use in the lab and for ambulatory use. We are developing signal processing algorithms to maximize correlation between actual caloric input and our estimated caloric input.

Miniature sternal skin-attached hot flash monitor

Hot flashes cause loss of sleep and workplace disruptions in some menopausal women. In testing potential therapies, subjective diaries are unreliable. Present objective recorders of skin conductance changes are bulky. We have developed a miniature recorder to collect objective data. We are developing signal processing algorithms that best detect our objectively recorded hot flashes as compared with subjectively recorded hot flashes. See hot flash below.

Files and Links of Interest

• A miniature monitor automatically detects number of hot flashes for a week on ambulatory subjects: 2007 Annual Meeting North American Menopause Society
• A miniature skin-attached hot flash recorder: IFMBE Proc., 15, 1-4, 2006
• A miniature sternal skin-attached hot flash recorder: IFMBE Proc. 2006 14:577-580.
• Analog signal processing
• Bioinstrumentation
• Calendar: times not available
• Can Tasers directly cause ventricular fibrillation?: IFMBE Proc, 2006, 14: 3307-3310.
• Community of Science profile
• Dart-to-heart distance when Taser causes ventricular fibrillation in pigs: IFMBE Proc., 15, 578-583, 2006.
• Design for Biomedical Engineers: Chapters of a book I am developing
• Electrical measurement, signal processing, and displays
• Electromuscular incapacitating device VF: Will et al. (2006) 2006 Experimental Biology Meeting. Abstract #327
• Electromuscular incapacitating device safety: IFMBE Proc. 2005 11(1)
• Electromuscular incapacitating devices: IFMBE Proc. 2005:9
• Encyclopedia of medical devices and instrumentation, 2nd edition
• Encyclopedia of medical devices and instrumentation, 2nd edition: Table of contents
• Expert witness consulting: in Career Development in Bioengineering and Biotechnology
• Finding employment in medical device companies
• ISI Highly Cited: Search on Webster
• Medical ablation technology group
• Medical instrumentation: application and design, 4th ed.
• Minimally invasive medical technology
• Resume
• Robotic assisted prostatectomy
• Safety of pulsed electric devices
• Sensors and signal conditioning, 2nd ed
• Taser Braidwood Inquiry: for Webster view presenter, view transcript
• Taser blunt probe dart-to-heart distance causing ventricaul fibrillation in pigs: IEEE Trans Biomed Eng 55, 2768-2771, 2008
• Taser thesis: Hongyu Sun
• The Measurement, Instrumentation, and Sensors Handbook
• Wiley encyclopedia of electrical and electronics engineering: 24 volumes

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