Download Chapter 30 Biomedical Technology

Chapter 30
Biomedical Technology
Health Care
Science
Technology
Copyright © The McGraw-Hill Companies, Inc.
Objectives
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Discuss the role and responsibilities
of a biomedical equipment technician
(BMET).
Identify two safety responsibilities of
a BMET.
Compare the roles and
responsibilities of the biomedical
engineer and the industrial hygienist.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Objectives (cont.)
Identify safe electric current
leakage limits for biomedical
equipment.
 Identify the two classes of
medical equipment that are
safety-tested.
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Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Objectives (cont.)
Identify wire color codes used in
hospitals.
 Define preventive maintenance.
 Define macroshock and
microshock.
 Successfully complete 1 procedure
in biomedical technology.
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Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Careers in Biomedical
Technology 30-1
Biomedical Equipment
Technician
 Biomedical Engineer
 Industrial Hygienist
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Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Biomedical Equipment Technician
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The need for biomedical
equipment technicians (BMETs)
arose with the introduction of
complex equipment to
diagnose, prevent, and cure
disease and illness.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Biomedical Equipment
Technician (cont.)
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A BMET is
knowledgeable about:
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The theory of operation.
The underlying
physiologic principles.
The practical, safe
clinical application of
biomedical equipment.
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Chapter 30
Biomedical Equipment
Technician (cont.)
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The Job of the Biomedical
Equipment Technician
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BMETs work for:
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Large hospitals.
Medical equipment manufacturers and
distributors.
Medical supply firms.
Medical research organizations.
Teaching establishments.
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Chapter 30
Biomedical Equipment
Technician (cont.)

The Job of the Biomedical
Equipment Technician (cont.)
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BMETs should have:
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Better than average manual
dexterity.
Mechanical and electrical
inclination.
Numerical ability.
Color vision.
An above-average work ethic.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Biomedical Equipment
Technician (cont.)

The Job of the Biomedical
Equipment Technician (cont.)
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Install, calibrate, and service
equipment.
Train new users.
Apply basic troubleshooting to
unfamiliar layout and operations.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Biomedical Equipment
Technician (cont.)

The Job of the Biomedical
Equipment Technician (cont.)
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Evaluate equipment for servicing.
Repair equipment.
Maintain parts inventory.
Test for electrical safety.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Biomedical Equipment
Technician (cont.)
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Education and Internship
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College programs include the study of:
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Details of electronic components and
circuits.
Design and construction of biomedical
equipment.
Physiologic and electronic principles.
Physics.
Medical terminology.
Anatomy and physiology.
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Chapter 30
Biomedical Equipment
Technician (cont.)
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Job Responsibilities
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Carry out preventive maintenance.
Train personnel on the use and care
of equipment.
Track maintenance and service.
Make recommendations on
replacements.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Biomedical Engineer
Uses skills to analyze and solve
problems in biology and
medicine.
 Designs and develops biomedical
equipment.
 Sometimes called a clinical
engineer.
 Education ranges from associate
degree to Ph.D. degree.
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Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Biomedical Engineer (cont.)
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The Job of the Biomedical
Engineer
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Works in specialty areas including
biomaterials, biomechanics, medical
imaging, rehabilitation, and
orthopedic engineering.
Works with other health care
professionals including physicians,
nurses, therapists, and technicians.
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Chapter 30
Biomedical Engineer (cont.)
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Job Responsibilities
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Develop devices such as hearing aids;
cardiac pacemakers; artificial kidneys and
hearts; synthetic blood vessels; and
prosthetic joints, arms, and legs.
Oversee automated client monitoring during
surgery or in intensive care.
Monitor healthy people in unusual
environments such as space.
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Chapter 30
Biomedical Engineer (cont.)
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Job Responsibilities (cont.)
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Develop therapeutic and surgical devices
such as laser systems for eye surgery and
automated delivery of insulin.
Advise on sports medicine, rehabilitation, and
support devices.
Design computerized blood sample analyzers,
cardiac catheters, and other equipment for
use in clinical laboratories.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Industrial Hygienist
Also known as an occupational
health and safety inspector,
specialist, or technician.
 Keeps workspaces and workers
safe.
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Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Industrial Hygienist (cont.)
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The Job of an Industrial Hygienist
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Looks for conditions and practices
that are not safe.
Creates methods to predict hazards
using the scientific method.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Industrial Hygienist (cont.)
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Job Responsibilities
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Inspect and test machinery and
equipment.
Check that personal protective
equipment is being used in workplaces.
Check that dangerous materials are
stored properly.
Test and identify work areas for potential
accident and health hazards.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Industrial Hygienist (cont.)
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Job Responsibilities (cont.)
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Prepare and calibrate scientific
equipment.
Assist with rehabilitation of workers.
Prepare reports including
observations, analysis of
contaminants, and recommendations
for control and correction of hazards.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Section 30-1
Apply Your Knowledge
Which biomedical career installs,
calibrates, and services equipment?
Answer:
The BMET.
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Chapter 30
Biomedical Technology Procedures
30-2
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Safety
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Chapter 30
Biomedical Technology Procedures
(cont.)
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The Association for the
Advancement of Medical
Instrumentation (AAMI)
developed the first standards
for the manufacture and
safety of medical equipment.
Biomedical technology
departments are expanding
into the areas of telemedicine
and teleradiology.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Safety
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A current of more than 10
milliamperes can cause paralysis
in the human body.
Electrical inspection has become
a very complete preventive
maintenance (PM) inspection, due
to the requirements of the Joint
Commission on Accreditation of
Healthcare Organizations
(JCAHO).
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Safety (cont.)
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Electrical Safety Testing
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Keep electricity in its place.
Medical treatment facilities
(MTF) use color-coded wires,
plugs, and outlets marked
“hospital-grade.”
Electric currents that
continue for more than one
heart cycle may cause
fibrillation.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Safety (cont.)
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Equipment Classes
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The two classes of medical
equipment are class A and class
B.
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Chapter 30
Safety (cont.)
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Class A Equipment
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Used in critical client care areas.
Usually, with class A equipment, the
client has a direct line of electrical
conduction to the heart.
Operating rooms, emergency rooms,
and recovery rooms are examples of
class A areas.
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Chapter 30
Safety (cont.)
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Class B Equipment
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Used in general client care and
examination rooms.
Examples of class B equipment are
examination tables, electric hospital
beds, and laboratory equipment.
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Chapter 30
Safety (cont.)
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Leakage Current
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Naturally occurring current that results from
distributed capacitance within equipment or
power cords and that leaks from electronics to
the metal chassis of the equipment to ground.
The acceptable leakage current in class A
areas is 10 microamps.
The acceptable leakage current in class B
areas is 500 microamps.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Safety (cont.)
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Leakage Current (cont.)
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The 6 main categories of leakage
current are:
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Loss of instrument ground.
Voltage variations caused by inadequate
grounding or improper ground wiring.
Current originating from an instrument
during use on a client.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Safety (cont.)
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Leakage Current (cont.)
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The 6 main categories of leakage
current are (cont.):
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Inducted current from other high-energy
sources.
Self-generating currents or voltage
differentials.
Other modes of leakage or means of
generating current.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Safety (cont.)

Macroshock and Microshock
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Macroshock is a large value of
electric current that passes from
one arm to the other, usually
externally on the skin.
Microshock is a small value of
electric current that passes directly
through the heart.
Copyright © The McGraw-Hill Companies, Inc.
Chapter 30
Section 30-2
Apply Your Knowledge
Where might you expect to find
class A equipment?
Answer:
In critical client care areas such as
operating rooms, emergency rooms,
and recovery rooms.
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Chapter 30
Procedures in Student Text
30A
35
Performing an Electrical
Safety Test
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Chapter 30
Chapter 30 Credits
Slide 7
Slide 9
Slide 13
Slide 24
Slide 26
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Total Care Programming, Inc.
Total Care Programming, Inc.
Total Care Programming, Inc.
Courtesy International
Medical Innovations
Bill Aron/PhotoEdit
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Chapter 30