NDLI: A Method to Detect the Microshock Risk During a Surgical Procedure

Content Provider	IEEE Xplore Digital Library
Author	Spalding, L.E.S. Carpes, W.P. Batistela, N.J.
Copyright Year	1963
Abstract	During a surgical procedure, the patient is exposed to a risk that is inherent in the use of medical electric equipment. The situations involved in this study presume that, in open thorax surgery, 60-Hz currents with milliampere units can pass through the myocardium. A current as small as 50 or 70 muA crossing the heart can cause cardiac arrest. This risk exists due to the electrical supply in the building and medical electric equipment. Even while following established standards and technical recommendations, the equipment use electricity and can cause problems, even with a few milliamperes. This study simulates by software an electrical fault possibility of this type and shows the efficiency of the proposed method for detecting microshock risks. In addition to the simulation, a laboratory experiment is conducted with an electric circuit that is designed to produce leakage currents of known values that are detected by equipment named Protegemed. This equipment, as well as the simulation, also proves the efficiency of the proposed method. The developed method and the applied equipment for this method are covered in the Brazilian Invention Patent (PI number 9701995).
Sponsorship	IEEE Instrumentation and Measurement Society Bureau international des poids et mesures IEEE International Bureau of Weights and Measures (BIPM) URSI NBS Agency Ind. Sci. & Technol., Min. Int. Trade & Ind. Sci. Council Japan International Union of Pure and Applied Physics (IUPAP) NIST NRCC National Conference of Standards Laboratories (NCSL) Allen Osborne Associates Andeen-Hagerling, Inc. Ballantine Lab. Inc. Clarke-Hess Communications Research Corp. Fluke Corporation Guildline Instruments Hewlett-Packard Co. Julie Res. Lab. Inc. Keithley Instruments, Inc. Measurements International Ltd. Canada QuadTech Inc. Quantum Design Inc. Rotek Instrum. Corp. Tegam Inc. Tektronix Inc
Starting Page	2335
Ending Page	2342
Page Count	8
File Size	448778
File Format	PDF
ISSN	00189456
Volume Number	58
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Surgery Circuit simulation Thorax Myocardium Heart Cardiac arrest Medical simulation Circuit faults Electrical fault detection Laboratories ungrounded power system Differential current insulation monitoring device (IMD) IT system macroshock microshock risk in operating room
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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