Valleylab Force 4 User manual

FORCE

4

SERVICE

MANUAL

110V

VALLEYLAB,

INC.

VALLEYLAB

5920

LONGBOW

303

EFFECTIVITY DATE: May

PART

530-2300

NUMBER

PRINTED

DRIVE,

P.O.

IN

A

USA

BOX

TWX

1,

1985

945

100

9015,

910-940-2514

054

A

BOULDER,

COLORADO

80301

TABLE

OF

CONTENTS

SECTION

1.

INTRODUCTION

2.

INSTALLATION

3.

DESCRIPTION

4.

MONOPOLAR

CONFIGURATIONS

5.

TECHNICAL

6.

CIRCUIT

7.

TESTING

8.

TROUBLESHOOTING

9.

ASSEMBLIES

10.

PARTS

11.

WARRANTY

OF

AND

SPECIFICATIONS

DESCRIPTION

PROCEDURE

AND

LIST

CONTROLS

BIPOLAR

AND

ACCESSORIES

SCHEMATICS

&

INDICATORS

ELECTRO

SURGICAL

PAGE

1

2

4

13

15

21

43

50

76

116

135

LIST

OF

ILLUSTRATIONS

FIGURE

1 FORCE 4

INDICATORS

AND OUTPUTS ON FRONT PANEL

2 FORCE 4 CONTROL KEYBOARD ON FRONT PANEL

3 FORCE 4 REAR PANEL CONTROLS AND CONNECTORS

4

5

6

7

8 9

10 11

12

13 14

15 16

17

18

19/20

21/22

23/24

25/26 27/28

29/30

31/32

33/34

35/36

37/38

39/40

41/42

43/44

45/46

47/48

49/50

51/52

OUTPUT

BLOCK

TIMING BLOCK

OUTPUT

FORCE4BLOCK

MONOPOLAR

BIPOLAR

TROUBLESHOOTING

FORCE4COMPONENT/CONNECTOR FORCE4COMPONENT/CONNECTOR

SYSTEM

PCB

CPU

OUTPUT

INTERFACE

BIPOLAR BIPOLAR

CLOCK/CONTROL SENSE

DRIVER

STRIPLINE

MONOPOLAR

BIPOLAR

POWER

VOLTAGE

DIAGRAM

VS

-

LOAD

LOAD -

VS

BIPOLAR

WAVEFORMS -

DIAGRAM-CONTROL

POWER

SUPPLY

SCHEMATIC

OUTPUT

INTERCONNECT

BOARD

ASSEMBLY/SCHEMATIC

BOARD

OUTPUT

WAVEFORMS

LIST

ASSEEMBLY/SCHEMATIC

ASSEMBLY/SCHEMATIC

BOARD

CONTROLLER

BOARD

ASSEMBLY/SCHEMATIC

BOARD

ASSEMBLY/SCHEMATIC

DISPLAY

BOARD

- MONOPOLAR

BIPOLAR

CONTROL

SETTING

STAGE

CLOCK/CONTROL

MODULE

TIMING

DIAGRAM

LOCATIONS-TOP LOCATIONS-SIDE

SCHEMATIC

ASSEMBLY/SCHEMATIC

BOARD

ASSEMBLY/SCHEMATIC

BOARD

ASSEMBLY/SCHEMATIC

SPEAKER BOARD ASSEMBLY/SCHEMATIC

POWER

MONOPOLAR

BIPOLAR

POWER

SUPPLY

OUTPUT

BOARD

CONTROLLER BOARD ASSEMBLY/SCHEMATIC

KEYBOARD/SCHEMATIC

SUPPLY

MODULE/SCHEMATIC

ASSEMBLY/SCHEMATIC

BOARD

VIEW

PAGE

4 8

11

18 19 20

27

35

36

41

42

68

70 72

77

78

98

80

81 84

86

88 90

92

94

96

98

100

102

104

106

108

110

112

114

LIST

TABLE

OF

TABLES

INPUT

SIGNALS

&

OUTPUT

ON

CPU

LINES

BOARD

-

BIPOLAR

PAGE

CONTROL

11

29

32

SECTION

INTRODUCTION

This

Service

the

Valleylab

sections

Testing

use

of

and

elect

directed

1

Manual

Model

covering

Troubleshooting

rosurgery

to

the

Operator's

covers

the

FORCE

Technical

is

beyond

Instruction

the

installation

4

Electrosurgical

Specifications,

of

the

Generator.

the

scope

Manual

and

basic

Generator.

of

this

provided

service

Circuit

Detailed

manual

by

instructions

Also

included

Descriptions

instructions

and

the

Valleylab.

and

in

reader

for

are the

the

is

Valleylab,

in

equipment

obligation

and/or

sold

its

to

by

dealers

built

make

them.

and/or

the

and

representatives

sold

same

or

by

similar

them

reserve

at

changes

any

the

time

on

equipment

right

without

to

make

incurring

previously

changes

any

built

SECTION

INSTALLATION

2

INSTALLING

The

compact

unit

convenient

At

is

may

high

important that the vents on the rear

proper

closely

air.

top

and

POWER FOR THE

90-140

The

FORCE4is

voltages

of

brownouts

constant.

(nominal).

PROPER

THE FORCE 4

size

of

the

FORCE

4 system allows a variety

be placed on the mounting cart

and

power

cooling.

fitting

Under

rear

VAC,

with

The

GROUNDING

sturdy

settings

cabinet or

continuous

panel

FORCE

50

essentially

or

FORCE4is

table

For

this

to

feel

4

-

60

Hz

designed

power

or

cart.

considerable

reason

cart

use

for

extended

warm

perfect

surges

to

operate

the output

normally

to

power

the

which

the

output

available

is

and

FORCE

might

periods

touch.

over

regulation.

of

supplied

of

installations.

from

Valleylab, or on any

dissipated within the unit

sides

4 should not be

restrict

of

an

unusually

the

for

remain

the

free

time,

FORCE4will

operation

it

is

wide

This means

unobstructed for

installed

circulation

normal

range

that

always remain

on

120

and

for

of

in

volts

The

it

in a

of

the

input

case

AC

An

important

equipment

connected

flow

failure.

Undesirable

the

assure

the

POWER

Unless

equipped

meets

by be

from

input

proper

FORCE

PLUGS

an

all

using

periodically

consideration

is

proper

to

the

generator

the

cabinet

60

Hz

60 Hz

4.

FOR

explosion-proof

with

requirements

extension

power

grounding

THE

an

approved

disassembled

grounding.

leakage

to

FORCE

for

cords

chassis

of

the

and

4

hospital

safe

or

in

assuring

the

unit

currents

unit.

polarity

connector

grounding.

3-prong

and

inspected

The

and

are

duty

to

patient

ground wire

insures

in

the

also

It

is

the

in

the

power

is

specified,

three-prong

Its

2-prong

by

safety

that

no

event

affected

qualified

of

responsibility

outlets

connector.

purpose

adapters.

while

in

the

dangerous

an

internal

by

the

110

should

The

maintenance

using

power

currents

polarization

of

furnishing

volt

This

not

connector

electrical

cable

electrical

the

user

power

FORCE

connector

be

defeated

should

personnel.

will

4

is

of

to

is

220

volt

tandem

Hospital

volt

connectors

country

room.

connectors

AC

Grade

will

versions blade

110

and

used

in

equip your

of

the

FORCE4are

connector

volt

connector. At present there are no Hospital

we do

other

FORCE

of

equivalent

not

countries.

4 with

have

access

The

the

shipped

quality

Valleylab

proper

with

and

to

all

connector

a

the

representative

standard

construction

various

for

your

U.S.A.

to

Grade

220

in

operating

220 the

220

volt your

ROUTINE

The

Maintenance repairing

the

replacement

PULL

We

year.

MAINTENANCE

solid-state

cords

cord

ON

recommend

it

THE

This

design

is

limited

and

should

problems.

CORD

ITSELF.

that

Service

AND

replacing

the

Manual

procedures. For major

your

Valleylab

information

representative.

needed

to

INSPECTIONS

of

the

to

periodic

be

replaced.

Cords should

FORCE4be

describes

repairs

repair

the

FORCE4assures

inspections.

accessories.

Proper

handling

always

inspected

the

recommended

the

If

desired,

FORCE

4 can be returned

4.

virtually

Repair

Should

be

grasped

by

the

Valleylab

maintenance-free

should

breakage

will

hospital

minimize

by

the

inspection

will

supply

be

limited

or

wear

repair

plugs.

engineer

and check-out

to

Valleylab or

any

occur

DO

twice

parts

use.

to to

and

NOT

a

or

SECTION

3

DESCRIPTION

OF CONTROLS AND

MICR08IPOU

R

INDICATORS

• • •

ACCCSSORT

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mrumi

MONOPOLAR

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ITCH

(11)

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(10

1

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com

rawcii

s2

2

1,2

4,5

6-9

10,11

12

13,14

3

15

16

Microbipolar

Monopolar

Alarm

and

Monopolar

REM

connector

Monopolar

Bipolar

Audio

Remote

THE

Output

Volume

Power

FORCE4INDICATORS

Power

Power-Cut

Mode

Power

Output

Indicators

-

Coag

Jacks

Change

Indicator

FIGURE

AND

1

OUTPUTS

ON THE

FRONT

PANEL

A.

FRONT PANEL

1.

BIPOLAR

The

at

generator

2.

BIPOLAR

OUTPUT

word

the

Microbipolar

POWER

INDICATORS

ACTIVE

'WATTS'

is

keyed

READOUT

AND OUTPUTS

INDICATOR

will

be

Output Jack

in

the

illuminated

bipolar

(SEE

(3).

mode

when

may

FIG.

useful

Absence

indicate

1)

output

of

illumination

generator

power

is

available

when

the

malfunction.

This

mode

power,

generator

3.

BIPOLAR

This

will

accessories

when

4.

MONOPOLAR

The

the

monopolar

generator

5.

MONOPOLAR

This

mode

cut

generator

digital

(2,

Fig.

in

watts,

is

ACTIVE

receptacle

be

keyed

the

bipolar

CUT

backlit

cut

mode

output

is

CUT

digital

(2,

Fig.

power,

is

LED

2).

keyed

RECEPTACLE

will

by

and

OUTPUT

word

and

keyed

POWER

LED

2).

in

watts,

keyed

display

The number

which

in

the

accept

the

bipolar

foot

switch

ACTIVE

'WATTS'

useful

jacks

indicates

READOUT

display

The number

in

is

visible

will

bipolar

the

handswitch.

generator

button,

INDICATOR

will

output

(13) and

a

is

which

the

will

monopolar

when

displayed

be

delivered

mode.

three

prong

It

(18,

be

visible

power

(14).

malfunction.

visible

displayed

be

delivered

cut

will

is

Absence

when

mode.

the

predicts

to a 100

active

also

then

Fig.

when

is

available

the

predicts

generator

bipolar

accept

keyed

2),

is

the

generator

of

illumination

generator

the

to

a 300

the

level

ohm

two

by

pressed.

at

level

ohm

is

in

the

of

load

when

accessories

prong

the

foot

is

either

is

in

the

of

monopolar

load

ready

bipolar

active

switch

keyed

of

when

ready

when

the

and

in

the

6.

7.

ALERT

This

condition.

MODE

A.

INDICATOR

One

waveform.

selector

INDICATOR

LED

lamp

of

four

is

on

The

audio

LAMPS

CUT

mode

The mode may

push

buttons

whenever

alarm

indicators

(9,10,11,12;

will

be

the

sound

is

changed

generator

twice

illuminated

by

pressing

Fig.

2)

when

is

this

disabled

lamp

to

show

one

of

goes

the

by

on.

CUT

four

an

alarm

power

mode

Pure: 750 kHz

Blend

1:

2:

3:

50%

duty cycle,

25%

duty

25%

duty

pulses.

sinusoid

cycle,

750

kHz

750

kHz

750 kHz

sinusoid j

sinusoid

plus

inductive

discharge

B. One

C. One

8.

RETURN

This

electrode

of

patient

is

The

rekeying

of

two

waveform.

(15,16;

SPRAY COAG:

SOFT

bipolar

is

STANDARD:

COAG:

of

by the

Fig.

two

output

PRECISE:

FAULT

LED

illuminates

connection, producing a

the

RF

current

connector ( 12

on.

alarm

The

can

the

COAG

Select

mode

by

indicators

pushing

is

one

3)

31

kHz

inductive

22

kHz

inductive

bipolar

power

push

buttons (5,6;

Output

100

ohm

Output power

power.

INDICATOR

audio

alarm

power

versus

power

at

50 and 200

load. j

at

if

the

returns

).

to

The

will

be cleared by releasing the

unit.

discharge

discharge j

mode

a 200

indicators

load

Fig.

2). j

ohm

FORCE4is

situation

the

generator

FORCE4is

sound

twice

illuminated

of

the

impedance

ohm

loads

load

keyed without a proper patient ^

where

disabled

when

to

show

mode

is

selector

illuminated

characteristics.

is

1/2

is

1/4

of

a

significant

by

some

path

so long

the

alert is first

hand

•

or footswitch

of

the

100

other

as

COAG

push

to

buttons

show

power

the

Selection

power

ohm

at

output

a

proportion j

the

than

indicator

the

detected.

and

then J

9.

REM

FAULT

This

alarm

condition

patient

the

alarm

30%

increase in resistance.

alarm lowered

10.

MONOPOLAR

The

the

coagulation

monopolar

generator

INDICATOR

LED

illuminates

condition.

is

electrode

condition

is

first

and

COAG

backlit

output

is

a

within

word

keyed

(Return

when

For

a single-section patient electrode the

resistance

connector ( 12

is

a

resistance

detected.

the

acceptance

OUTPUT

mode and

ACTIVE

'WATTS"

jacks

may

useful

(13) and

indicate

Electrode

the

patient

greater

).

The

alarm

INDICATOR

will

be

output

a

Monitor)

electrode

than 16

For a

outside

audio

range.

visible

(14).

malfunction.

alarm

is

power

Absence

cleared

when

contact

ohms

between the

dual-section

the

range

will

the

is

available

of

sound

when

generator

of

illumination

monitor

patient

5 -

135

twice

the

resistance

at

senses

pins

ohms

is

either

an

alarm

of

the J

electrode

or

when

keyed

when

the j

is

of

the the

a ^

in

12.

MONOPOLAR

COAGULATION

POWER READOUT

This

coagulation

when

PATIENT

This

monopolar

actuates

section

13.

MONOPOLAR

This

(Valleylab

output

button

14.

MONOPOLAR

accessories.

have

mode

digital

(2,

Fig.

the

generator

RETURN

2

a

patient

ACTIVE

receptacle

can

(17,

or

coagulation

ACTIVE

receptacle

no

power

or

coagulation

LED

display

2).

power,

is

The

in

keyed

ELECTRODE

receptacle

procedures.

switch

electrode

accepts

within

RECEPTACLE-HAND

will

LectroSwitch)

be

activated

Fig.

This

available

accept

2)

is

mode power may be

RECEPTACLE - HANDSWITCH

will

output

mode

is

visible

number

watts,

in

displayed

which

the

RECEPTACLE

the

A

the

receptacle

used

or

by

pressed

accept

if

power

for

three-prong

standard

the

is

activated

the

generator

may

when

will

monopolar

patient

on

contact

OR

FOOTSWITCH

one-prong

footswitch

or

by

keyed

the

be

keyed

three-prong

the

generator

predicts

be

delivered

coagulation

return

the

patient

to

indicate

area

(REM)

handswitching

active

when

the

handswitching

at

this

only

is

by

keyed

at

this

the

level

electrode

the

monitoring.

active

accessories.

the

monopolar

receptacle.

handswitching

the

handswitch

by

the

receptacle.

is

to

a

mode.

connector

use

accessory.

footswitch.

in

the

of

monopolar

300

ohm

connector

of

the

accessories

footswitch

and

ready

load

used

dual-

This

Cut

active

will

Cut

15.

16.

AUDIO

The

keyed

forward

volume

REMOTE

This

remote

When

off

VOLUME

volume

may

of

INDICATOR

lamp

power

the

by

switching

to

lamp

CONTROL

of

be

adjusted

increase

the

will

change

the

'bong'

be

is

to

cut

and

with

the

produced

illuminated

feature

on,

remote

standby

coag

this

volume,

(1,

audio

by

is

power

Fig.

tones

4-position

push

and

activated

it

alarm

the

changes

3).

produced

slide

back

conditions

audio

at

can

switch.

to

decrease

is

will

the

handswitching

occur.

when

not

'bong'

The

the

generator

Pull

the

volume.

adjustable.

once

lamp

the

switch

when

accessory.

is

turned

is

The

the

3-6

7-12 1,2

17,18

13,16

Bipolar

Monopolar Standby,

Footswitch

Monopolar

Controls

CUT

Ready

Keying

COAG

controls

Mode

Selectors

controls

Selectors

THE

SSE4

CONTROL

FIGURE

KEYBOARD

8

2

ON

THE

FRONT

PANEL

B.

FRONT PANEL KEYBOARD CONTROLS

1.

STANDBY

In

suppressed.

be

2.

READY

this

blank.

MODE

mode

SELECTOR

the

Prior

The

generator

SELECTOR

generator

power

level

is

(SEE

cannot

in

FIGURE

settings

standby

be

when

2)

keyed

are

and

retained

power

is

the

but

first

audio

the

displays

applied.

alerts

are

will

3.

4.

5.

6.

7.

Pressing

alarms

BIPOLAR

push,

fully

This

button

the

power by one

the

display

BIPOLAR

Pressing

or

STANDARD

Pressing

PRECISE

Pressing

MONOPOLAR

This

button

increase

the

display

this

POWER

button

active.

INCREASE

increases

to

increase

POWER

this

DECREASE

button

continuously

MODE

this

CUT

SELECTOR

button

SELECTOR

button

POWER

increases

the

power

to

the

watt.

decreases

if

will

INCREASE

by

mode

places

BUTTON

bipolar

Holding

continuously

BUTTON

the

button

select

BUTTON

the

monopolar

one

watt,

maximum.

the

generator

power

the

to

bipolar

is

the

Standard

the

Precise

cut

and

holding

readout.

button

70

watts

held

power

in

down

power

down.

Bipolar

readout.

the

service

A

single

continuously

maximum.

display

mode.

button

with

by

A

single

down

push

will

outputs

will

one

watt

push

and

raise

cause

per

will

increase

8.

MONOPOLAR

Pressing watt

9.

CUT

Pressing

per

MODE

CUT

POWER

this

button

push,

SELECTOR

this

button

DECREASE

or

continuously

-

PURE

will

decreases

CUT

select

BUTTON

the

if

a

monopolar

the

button

continuous

cut

mode

is

held

sinewave

power

down.

cut

display

waveform

by

one

output.

10.

CUT

MODE

SELECTOR

- BLEND 1

11.

12.

Pressing

output.

CUT

MODE

Pressing

sinewave

CUT

MODE

this

SELECTOR-BLEND

for

SELECTOR - BLEND 3

button

this

moderate

button

will

2 j

selects

hemostasis.

select

a

Pressing this button selects a cut

plus

hemostasis.

13.

MONOPOLAR

This

push

cause

14.

MONOPOLAR COAGULATION POWER DECREASE BUTTON

This

or

inductive

COAGULATION

button

will raise

a

continuous

button

continuously

discharge.

increases

the

increase.

decreases

when

POWER

the

power

the

it

is

This

INCREASE BUTTON

monopolar

by

one

coagulation

held

down.

a

50%

duty

cut

mode waveform

mode

is

the

coagulation

watt,

and

power

cycle

output

cut

waveform producing

sinewave

waveform

power

holding

display

the

by

cut

waveform

of

25%

of

duty

25%

cycle

sinewave

maximum

display. A single ^

button

one

watt

down

per

will j

push,

15.

COAG MODE

Pressing

repetition

16.

COAG MODE

Pressing

discharge

17.

FOOTSWITCH

Pressing

control.

18.

FOOTSWITCH

Pressing

SELECTOR-SPRAY

this

SELECTOR

this

button

rate

coagulation

button

at a lower

SELECTOR

button

SELECTOR-BIPOLAR

button

will

-

SOFT

will

repetition

- MONOPOLAR

places

COAG

select

waveform.

COAG

select

the

an

a

rate

(22

monopolar

bipolar

inductive

coagulation

KHz).

output

under

discharge

waveform

under

footswitch

with

footswitch

control.

a 31

KHz

inductive

keying

10

0

©

MONOPOLAR

FOOTSWITCH

21 21 A

BIPOLAR

FOOTSWITCH

Wiring

A

D

C

B

ACTIVE

COAG

footswitch

Ao

\o

Monopolar

cut

Diagrams

OU

OJ B

=*<>

=t^7

C Bipolar

ACTIVE

( °

A

D

C

B

Handswitch

^ r

i ;

JJandswitch

o

ASWITCH

O

° J

CUT

^7

;REMOTE

I

PUR

CHNG

L&C.CE5S.0B.Y

jACTIVE

SWITCH

/

f f

CASE

1

COAG/

O-i

O-l.m

UP.ACT1VATE

/^"CT*\

AfOOV

W

DOWN

i

COAG

!

in

B

CUT

SWITCH

B"

Th

ACTIVE

1

CASE

ACTIVE

THE

FORCE4REAR

FIGURE

PANEL

3

CONTROLS

11

AND

CONNECTORS

REAR

1.

FOOTSWITCH

PANEL

CONTROLS

AND CONNECTORS

RECEPTACLE-MONOPOLAR/BIPOLAR

(SEE

FIG.

3)

This

connector.

2.

POWER

This

apply

3.

POWER

The

connected

4.

FOOTSWITCH

This

connector.

4-pin

SWITCH

power

CORD

line

toaproperly

three-pin

The

switch

and

cord

MS-type

wiring

includes

down

is

receptacle

diagram

to

shut

terminated

phased,

RECEPTACLE-BIPOLAR

MS-type

receptacle

a

circuit

power

accepts

is

shown

off.

in

a

grounded

accepts

in

Fig.

breaker.

grounded

receptacle.

the

3.A.

Press

3-pin

the

single-treadle

two-treadle

the

toggle

plug

and

footswitch

upward

should

footswitch

to

be

12

SECTION

4

MONOPOLAR

ELBCTROSURGICAL

&

ACCESSORIES

The

FORCE4features

these

HANDSWITCH

switching

switching output

AND

outputs

pencil.

accessories

is

a

output

nonswitching

accessory

MONOPOLAR

Monopolar

The

or

CONFIGURATION

Accessories

FORCE

operation,

through

contacts

The

on

"active"

Models

the

Valleylab

either

E4001

the

since

receptacle.

most

footswitch

E6008

connected

back

generator

Bipolar

activated

4

switching

mixture

spark

standard

panel

has

and

to

in

only.

in

an

currents

of

energy

then

E6009

millijoule.

1/5000 operation.

of

the

BIPOLAR

CONFIGURATIONS

are

used

is

The

reduced

bipolar

by

4

has

the

radio

power

accessories

footswitch.

a

patient,

patient's

hand-switching

"Handswitch"

there

and

E4002

The

standard

accessories

controls

footswitches

the

FORCE4by

of

the

CUT/BLEND

The

FORCE4has

the

event

"intrinsically

are

flammable

which

The

energy

amount

three

separate

primarily

designed

MONOPOLAR

or

it

BIPOLAR

radio

frequency

and

returns

skin.

accessories

or

are

only

coagulation

active

directly

the

means

generator.

or

COAGasneeded.

that

gas

too

both

safe"

low

and

occurs

present

considered

in

for

ACCESSORY

can

be

output

and may he

current

to

"Accessory"

low,

"accessory"

current

are

The E6008

an

override

pedals

footswitch

to

oxygen.

at

the

in

a

outputs

monopolar

use

with

activated

which

(RF)

passes

the

generator

plug

switching

forceps

or

through

flow

designed

of

a

four-pin

circuit

are

cause

a

To

switch

the

FORCE4switching

conservative

which

configurations.

either

output

by

may

activated

grounded

from

into

receptacles.

voltages

also

jack

an

to

the

for

operating

footswitch

The E6009

pushed

circuit.

spark

qualify

contacts

limit

may

be

activated.

switching

is

designed

the

footswitch.

be

used

by

either

output.

the

via

a

patient

the

three

All

between

plug

accessory.

into

will

appropriate

accept

pedals

activates

to

insure

simultaneously.

This

even

in

as

intrinsically

the

must be

for

safe,

The

forceps

for

with

switching

the

In

active

plate

banana

three

either

the

adapter.

Both

room

receptacle

use

activate

the

that

only

means

most

less

circuits

open-

Two

of

MONOPOLAR

or

a

use

with

The

third

or

switching

monopolar

accessory,

which

jacks

pins

the

monopolar

plugs

the

and

on

are

pins.

of

The

Model

are

the

Force4in

COAG

is

The

FORCE

that

the

dangerous

safe,

the

than 1

is

about

contact

The

In

a

densities

Patient

monopolar

to

Return

configuration,

a

safe

Electrode

level.

a

return

electrode

13

is

used

to

limit

the

current

An

accepted

square

per

A

delicate

inches.

as

adherance

method

system

centimeter

hundred

Gelled

Valleylab

of

with

procedure

to

providing

electrosurgical

ground. The

returning

safety

through

from

standard

watts

foam

of

return

of

generator

which

pad

for

gelled

electrode

output.

uses

electrodes,

low

plate

area

(NFPA

power

and

Model E7503, 5, 6, 7 have come

manufacturer's

a

return

current

circuit

ground

patient

burns

the

fault

prevents

instructions,

return

circuit

in

the

is

under

connection.

which

patient

FORCE4operation

excessive

common

fault

or

foil

or

Bulletin

settings

conductive

into

they

The

continuously

circuit

and

thus

conditions.

electrodes

roughly 9

No.

requires

adhesive

common

can

be

FORCE4is

and

the

if

the

provides

is

or

10 square

76CM,

only

electrodes

usage and

an

effective

monitors

power

proportion

a

high

1.5

watts

Part

a

few

with

an

RF

the

distribution

of

degree

inches

II.)

square

such

proper

and

safe

grounded

flow

current

per

of

BIPOLAR

Bipolar

The

connected

is

output

CONFIGURATION

Accessories

most

limited

operates

impedance coagulation

power

when

common

to

the

bipolar

BIPOLAR

tissue

at

characteristics

at

a

given

the

coagulation

lower

instruments

output

which

power

optimized

power

is

complete.

jacks.

is

grasped

levels

setting

are

In

than

for

and an

forceps,

bipolar

by

the

operation

jaws.

MONOPOLAR

desiccation.

automatic

the

jaws

The

of

the

FORCE

output

This

means

reduction

which

current

4 BIPOLAR

and has

of

are

flow

faster

output

14

SECTION

5

FORCE4TECHNICAL

OUTPUT

CUT

BLEND

WAVEFORM

750

1

2

750

3

750

discharge kHz. Power

of

the

account

SPRAY

SOFT

MICROBIPOLAR

COAG

750 kHz damped

31

750 kHz damped

22

750

SPECIFICATIONS

kHz

sinusoid

kHz

bursts

kHz

bursts

kHz

bursts

damped

power

for

kHz.

KHz.

kHz

sinusoid,

is

into

the

of

sinusoid

of

sinusoid

of

sinusoidal

adjusted

a 300

remainder.

sinusoidal

unmodulated

sinusoid

so

ohm

at

that

hursts

bursts

50%

duty

25%

duty

at

bursts,

the

load

cycle

25%

all

sinusoid

and

with a

with

duty

the

a

recurring

cycle

bursts

damped

repetition

at

31

at

31

plus

recurring

account

sinusoid

frequency

kHz.

inductive

at

for

bursts

31

75%

of

OUTPUT

Mode

CUT

BLEND

BLEND BLEND

SPRAY

SOFT MICROBIPOLAR

Microbipolar

CHARACTERISTICS

(open

P-P

1

2

3

COAG

has

Maximum

circuit)

Voltage

2500

2800 3000

3400

9000

400

selectable

Rated

Load

(Ohms)

300 300

300

100

output

proportional to I/R or I/R2 (Standard or

POWER

Three

Power

watts,

READOUTS

L.E.D.

readouts

whichever

displays

agree

is

(for

with

greater.

coag,

actual

cut

power

and

Maximum

Rated

(at

(Watts)

300

+

250

+

200

+

200

+

120

+

60+5 70

+ 8

characteristics:

Precise).

microbipolar)

into

rated

Power

Load)

20 20

20

10

load

power

indicate

to

within

Crest

At

Rated

+10%

1.9

2.6

3.7

4.4

9.0

13.0

1.6

approximately

output

+_

Factor

Load

§

100W

6

100W

6

100W

6

100W

§

50W

<?

30W

§

40W

10%

power.

or

5

15

LOW

FREQUENCY

LEAKAGE

(50/60

Hertz)

Source

Normal

Reverse

Sink

HIGH

Bipolar

Trip

Normal

A

conditions,

Patient

rms.

Return

current,

polarity,

current,

FREQUENCY

RF

capacitance

sensitivity:

trip

defeats output for a period

to

Electrode

Measurement

Acceptable

Effective

Dual

area

Single

Mode

range

increases

selected

generator

140

RISK

leakage

a

trip

chassis

Frequency

Current

resistance

RF

mode

area

automatically

by

more

patient

intact

ground

volts

PARAMETERS

current,

(mid

power

130+_15

occurs

voltage,

Monitor

140

1.5

ranges:

pad

resistance

5-135

mode

less

will

than

leads,

chassis

open,

applied,

in

(REM)

kHz+_5

mA+_0.5

ohms

than 20

be

shut

30%

the

all

ground,

less

40

pf

setting)

pf

0.15

after

6-30

by

return

down

generator

outputs

than

all

output

seconds.

40

ohms

less

30uA

inputs,

of

pf

ohms.

electrode

and

tied

than

30uA

less

to

ground:

one

accessory

fault

will

be

together.

2.0uA

than

150

second

capacitance,

connector.

warning

shut

150uA

+_

down

mA

10%.

given.

and

rms.

Outside

an

Under

less

If

alarm

typical j

than

acceptance

resistance

given.

60

V i

COOLING

Natural

CONTROL

The

control

fluids

INDICATORS

The

RF

power

L.E.D.s,

or

fulgurate

Pure

are

Monopolar

Cut

used

tics.

tone

convection

PANEL

from

entering

indicators

is

available

two

or

with

REM

has

for

fault

and

panel

indicator

modes.

three

MBP

a

warning.

bipolar

cooled.

is

a

the

for

at

lamps

Four

available

to

indicate

"fault"

lamps

No

fan. }

flat

system.

COAG, CUT,

unit

indicator

sealed

output

are

Blend

either

indicator

There

indicate

unit

and

connections.

used

with

lamps

modes,

light

is

also

footswitch

16

with

MBP

will

COAG

are

Bl,

Standard

that

a

no

be

to

used

B2,

or

gives

return

function.

openings

illuminated

In

addition

indicate

with

or

B3.

Precise

CUT

an

fault

thus

only

to

either

to

indicate

Two

indicator

power

intermittant

indicator

preventing

when

the

digital

the

normal

either

characteris

800

light.

RF

lamps

Hz

AUDIO

VOLUME

Mode

Adjustable

REM

indicator

fault

FOOTSWITCH

Front

panel

Footswitch

footswitch

OUTPUT

When

power

POWER

an

of

display

will

range

INPUT

Nominal

Regulation

Operation

Frequency

POWER

tones:

external

tone

is

LOGIC

touch

function

pedals

ADJUSTMENT

"up"

that

button

function

that

for power

from1watt

SOURCE

voltage

range

45-64

65

volume

65

dba

buttons

selects

located

function

level

120

volts

95-140

80-140

Hertz

dba

at

starts

is

while

to

volts

at 1

control.

1

meter

select

in

COAG

mode.

on

increased.

is

decreased.

adjusting

a

set

maximum.

rms

meter,

min.

monopolar

the

monopolar

the

instrument

maximum

Not

externally

standard

mode.

control

Whena"down"

The

operator

it

to

the

desired

adjustable.

output

panel

button

can view

or

bipolar

Depression

is

actuated,

is

actuated,

level.

the

Power

output.

of

L.E.D.

levels

both

the

CURRENT:

POWER:

LINE

REGULATION

Between

more

than

WEIGHT:

SIZE:

Idle:

Cut:

Coag:

Bipolar

Idle:

Cut:

Coag:

90

2%

38

6 X

and

or

lb,

13

0.4

900

375

140

2

17

X

10

4

3

50

watts.

22

amperes

watts

volts

kg.

inches,

maximum

input,

15

output

X

33X56

power

cm.

into

a

nominal

load

will

vary

no

Specifications

subject

to

change

without

notice.

17

l

CO

c

Ul

300

200

o

a.

100

200

500

1000

2000

RESISTANCE/OHMS

FIGURE

4

OUTPUT

POWER

VS

LOAD-MONOPOLAR

18

OUTPUT

CO

1

C

UJ

$

O

Ql

70

56

42

28

a

•

*

PRECISE

MBP

STANDARD

MBP

14

10

20

OUTPUT

50

POWER

100

RESISTANCE/OHMS

FIGURE

VS

LOAD

5

-

BIPOLAR

19

I

150

200

OUTPUT

500

1000

<

UJ

BIPOLAR

400

300

g

O

< .

200

100

0,000

8000

n

MONOPOLAR

10

20

30

CONTROL

40

SETTING

50

60

70

COAG

z°-

UJ

0.

o

6000

4000

2000

BLEND

3

CUT

0

MODE

MAXIMUM

OUTPUT

CONTROL

FIGURE

VOLTAGE

VS

20

SETTING

6

CONTROL

SETTING

SECTION

6

CIRCUIT

POWER

The

DESCRIPTIONS

SUPPLY

FORCE4power

required

across

the

detector

voltage.

all

connected

voltage.

board

has

transistors

use

extreme

Supply

The

-5V

Tl,

and

regulated

+5V

Supply

MODULE

by

the

output

capacitors.

There

The

the

mounted on

caution

supply

rectified

by

Ul.

supply

generator

transformer

are

four

together

large

high

voltage

when

originates

by

module

circuitry.

There

returns:

at

circuit

the

probing

on

CR2. The

primary

are

pins

board

output

large

the

generates

It

and

four

analog,

1-4

of

is

components.

heat

sink

the

board.

Supply

rectified

the

also

R3

supplies:

digital,

the

and

transformer

the

controller

are

Module.

regulated

contains

which

discharges

+5V,

Controller

The

connected

Input

AC

is

two

high

and

output

power

filtered

and

isolated

load

-5V,

voltage

PCB.

T2

directly

resistors;

the

output

+15V

Transformer

and

supplies the high

the

small

board

is

and

passed

by

to

the

C2,

DC

power

peak

high

chassis;

circuit

its

four

line;

through

C3

R2,

Tl

and

is

which

L07

constant

current

inductor

kHz.

reference

shuts

oscillator

+15V

This

CR01. The

a

the

pass

output

the

trigger

ripple,

provides

is

controlled

The

down

output

Supply

regulator

zener

reference,

device

exceeds

inductor

and

a switching supply with

the

60

current

increases

at

-0.

5v

of

1.25V

the

to

output

diode

on,

current

with

runs

overvoltage

microhenry

equal

and

7v

and

by

U01

output

to

oscillator

duty

lower

duty

uses

voltage

CR02

voltage

comparator

current

the

reference.

hysteresis.

at

varying

the

which

is

enable

cycle

a

passes

protection

switching

to

the

when Q04

inductor

has

divided

when

is

cycles.

buck

is

divided

inductor

divided

U05

increases

through

This

frequency

15V

load

down

the

50%

turns

At this

regulator

input and

current.

is

off

current

an

internal

by

output

14

and

regulation

down

by

on

in

CR01.

and

by

firing

buck

inductor,

CR03

decreases.

R13,

and

turn

drops

with

R27, R38.

the

by

LI,

time,

pass

R34,

pass

the

Note

controls

duty

5V

output.

SCR01

When

holds

oscillator

R14

and

on

0.33

is

device

R35,

When

device

0.75

the

pass

that

cycles

U2

to

clamp

operating

Q04

is

the

input

The

duty

running

compared

Q04.

volts

accomplished

U05

the

as

and

the

via

mH

device

is

the

A

below

Q01

R37

output

Q02,

inductor,

wired

output

load

is

a comparator

the

at

on,

the

side

cycle

at

to

second

by

and

catch

and

is

Q03.

is

shut

as

voltage

is

output.

a

nearly

inductor

of

about

an

internal

comparator

13.

gating

diode

compared

less

With

until

off

a

schmidt

varied.

the

Q04

25

The

the

to

than

the

and

21

Ancillary

detection

is

the

current

R33.

volts.

output

through

CR05

circuits

of

loss

and

of

crowbar.

the

Q07

shut

provide

the

U06

sense

-5V

off

over

supply.

is

the

resistors

the

voltage

comparator

+15V

CR06

R05,

supply

protection,

is

the

which

R06

exceeds

when

over

the

voltage

shuts

-5V

current

off

the

supply

limit

limiting

sensor

the

goes

and

supply

adjusted

below

and

SCR2

when

by

-3

High

This

input

tap

Voltage

supply

is

of

produce

bridge

which

has

a

catch

from

CR1901,

Drive equal

with

are

its

current

diode

transformer

pulses pulse

the

U08/1, Q05,

C25,

a

voltage

The

set

Q06

the

slowly

error

point

voltage

and

actual

millisecond

provided

T2.

variable

CR4

located

own

source

CR1902

U09

the

to

astable

varying

is

less

voltage

output

Supply

is

an

Transistors

and

smoothed

return

function.

prevent

are

widths

output,

pulse

drive

than

voltage

taken

voltages

time

off-line

by

CR5

width

on

the

wire,

under

T1901

generated

in

width

the

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designed

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128V

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150

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the

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