Metra Electronics DAT Combo Uživatelský manuál stáhnout pdf (Strana 37)

Device above records knee motion,

passes findings on to computer for

analysis.

Knee

in photo is model.

on

the

theory that the average internal tem-

perature of the

body remains

pretty much

unchanged

if a person is

healthy.

Skin tem-

perature,

in

contrast, fluctuates, depending

on

both internal and external factors.

At

the Einstein Medical

Center, physicians

scan skin

surfaces

with

infrared radiometers

to

cite

internal disturbances. The method

calls

for rapid, high -resolution

infrared

scanners

and very basic scientific

know

-how

to

be

able to accurately analyze. But in

spite of the revolutionary aspects of

the

new

technique, it

has

already

won

its colors

by

early detection

of

some types

of

cancer and

vascular troubles.

Model Organs. For the new

electronic

internists to completely rule out diagnostic

error, the modern doctor applying the

tech-

niques

must know more

about the

workings

of the human

body,

still enigmatic in many

respects.

This information IBM

and Uni-

versity of Mississippi School of Medicine

en-

gineers

and

physicians

try to supply. Borrow-

ing from space science

they

successfully sim-

ulate body organs with a computer.

FrtBauABY-MARCH, 1967

Feeding

all

known

information

along

with

mathematical

descriptions

of body

organs

and systems

into analog and

digital

com-

puters,

they simulate such

organs

as

the

hu-

man lung, kidney,

and

heart.

One

model of

a

kidney has already af-

forded doctors a clearer comprehension

of

the relationship

between

kidney function

and

high blood

pressure.

And they hope to learn

more about arterial blood

pressure, blood

flow,

and

blood composition through

a

mathematical model of

the

circulatory sys-

tem.

For years, doctors

have tried to discover

how kidneys

control

rates at

which

sub-

stances

are eliminated

or

reabsorbed

into the

body. To

date, they

have only theories, but

they

now hope to solve their

problem

by

building a mathematical

model. The com-

puter can then show which theory best simu-

lates

actual

function.

The

Body A

System.

Dr. Arthur C.

Buy

-

ton of the Mississippi School explains the

work

by saying he

believes the body the best

engineered and most

complicated system

known. Since it is controlled

by

several

hundred patterns, only

a

computer,

he

thinks,

can

aid

in understanding its workings.

To discover

why

elderly women fall

and

break

a hip more

often

than

men,

Moss Re-

habilitation Hospital in Philadelphia

has car-

ried

out

another

study.

Two hundred

women

clad in shorts

and

wired to

an

electronic

machine,

walk

across

a "copper"

carpet.

Six

muscular movements are recorded: the

angle

of each hip, knee, and ankle

joint, plus mus-

cular potentials during five

walking

positions.

Each of the motions

is then

measured

electronically

with

the

thought that if the

doctors can find

why

the

women

fall they

may discover a preventive.

Pain Cure.

For the

study, analysis, and

diagnosis

of

the human body and its

com-

plaints, the new biomedical

engineering has

already

proved

revolutionary in its promise

to rule

out human

error. But so far it has

come

up

with

few

cures.

One,

however,

seems

so extraordinary

it

may

well

eclipse any

medical

process

yet

known! While not exactly

a cure, it promises

to relieve severe

pain,

the

kind associated

with

diseases such as cancer

and serious in-

jury to the nervous system.

A Dime Helps.

Smaller than

a

dime,

the

miniature device can be implanted

near

the

spinal cord.

Here,

a mild, non

-painful

stim-

(Continued

on page

116)

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