Jorvet ELECTROSURGE J0470M User manual

J04 70M
ELECTR OSURG E
Radio-F r equency
Electr osurger y Unit
Operation Instructions

ELECTROSURGE J0470M
Hand Piece
Connection
(Black Socket)
Hand Piece
Indifferent Plate
Connection
(Red Socket)
Indifferent
Plate
Intensity Level
Waveform
Mode
Electrodes
Foot
Switch
Power
Active
Light

1
JORVET
ELECTR OSURG E
Radio F
r equency
Electrosurgical Unit
What Is Radio Frequency Electrosurgery?
Electrosurgery is a commonly used procedure that has been used in
both human and veterinary surgery for over 20 years. Ultra- high
frequency radio waves are transmitted through a fine wire electr ode to
a flat antenna on a ground plate placed under the animal. The high
frequency radio waves pass through tissue and make a precise surgical
incision just like a scalpel blade. The surgeon chooses from varying radio
waveforms that result in varying degrees: from pure cutting to
hemostasis. Radio frequency electrosurgery should not be confused
with electro cauter y . Electrocautery uses thermal energy or heat that
simply burns the tissue.
The advantages of electrosurgery are fine, precise incisions
with hemostasis of small “bleeders”, and less blood obstructing
the surgical field. This makes any procedure faster and easier.

2
What Do the Dial
Settings Refer T o?
The two dials on the front panel refer to Fig. 1 waveform mode and power
intensit y . The waveform mode has different settings. This dial allows the selective
use of various waveforms that give varying degr ees of cutting power and
hemostasis.
Cut
mode:
This selection produces a sine wave of continuous high frequency that
provides smooth cutting power. This creates the least amount of lateral
heat and tissue damage. This is the preferred mode for thin avian skin and
incisions where heavy bleeding is not a problem. This mode provides for
the least amount of hemostasis.
Coag 1
mode:
This selection produces a periodic sine wave with brief rests
between cycles . This waveform has less cutting power, but coagulation
of small capillary beds is achieved.
Coag 2
mode:
This selection produces a partially-rectified s i n e wave. This provides the
most hemostasis on v essels up to 1/16” in diameter . This mode can also
use the indirect method of coagulation. This method employs a fine
hemostat to grasp the vessel cleanl y . The active electrode can touch the
hemostat near the tip and coagulate that v essel.

3
Getting Star t ed
Remove the unit from the box and lay it on a flat surface.
1) Connect the female end of the power cord to the rear of the unit, and the
male end in a grounded electrical outlet.
2) The male jack of the Black (or Green) surgery hand piece is inserted into
the unit into the black socket marked “ HANDPIECE” on the front panel.
3) I ndifferent Plate: This is the red cord. The male jack should be inserted
into the red female jack opening marked “IND PLATE” on the front
panel.
4) Connect the foot pedal in the rear ofthe unit .
5) The Indifferent Plate should be placed under the animal close to
the procedure site. Conductive gel must be used to create uniform
skin contact and maximize surface contact with the plate. Failure
to use gel can result in plate burns to the animal in addition to
poor or no function.
6) Select an electrode and insert the straight shaft end into the top
opening of the handpiece. Be careful not to bend or damage the
electrode in any way. Do not attempt to unscrew the handpiece
as this will damage it.
7) Set the waveform dial to the desired mode.
8) Select the power intensity. 1 is lowest and 10 is highest. Always
start at the minimum level and gradually work up to a level where
cutting is smooth but no sparks are emitted.
9) The “ACTIVE” light should be lit when the footswitch is pressed. This
indicates that radio frequency waves are being sent.
10) The electrode should be gently held on the tissue. A smooth,
constant motion will produce less lateral heat and the cleanest
incision. The tissue should always be kept moist for better and
cleaner cutting. Cutting should be done without pressure, as this
can damage the tissue and tip.

4
Practice
It is highly recommended to practice your technique before using the
unit on clinical cases. There are a number of text books available on
electrosurger y . The wide range of applications can be found by reading
through these texts.
1) Obtain a fresh, lean cut of beef, such as round or sirloin steak.
The meat should reach room temperature. Moisten the meat
with a small amount of saline.
2) Set up the unit and place the meat on top of the
indifferent plate.
3) Select an electrode and place it in the hand piece.
4) Turn waveform mode to Coag 2.
5) Set power level at #8 position.
6) Press on the foot pedal.
7) Do several incisions and observe the results. This high setting will
cause sparking and may char tissue.
8) Adjust power to #1. This will illustrate poor cutting or
extreme drag.
9) Move the power setting to different levels and continue to
practice.
10) Try different waveform settings, but wait 10 seconds between
adjustments. The more you practice the easier the unit will
perform for you on actual patients.
Tip:
The cutting should be smooth with no sparking or r esistance.

5
Cutting
The tissue should always be moist. Dry tissue can result in surface
charring. Saline solutions are the best solution to use. Cutting involves
no pressure. The hand should rest on a support in order to keep control
over the hand pi e c e . Remember to use a feather light t o u ch .
Hemostasis
Small bleeders can easily be stopped with an electrosurgery unit.
The vessel should have direct pressure first placed on a sponge or
hemostat. The vessel should be clearly located and not co v er ed
with blood. The waveform should be in Coag 1 or Coag 2. Coag 2 is
preferred for larger bleeders. The two types of coagulation electrodes
are the round ball electrodes and heavier needle. An indirect method
uses a hemostat with a fine tip. The vessel is grasped by the hemostat.
The electrode is applied to the hemostat about 1” from its end.
Care and
Selection of Electr odes
The electrodes can be autoclaved or cold sterilized. The protective
rubber on the shaft should be intact. If it is cracked or worn a shock
or burn may be felt by the operator . Autoclaving will affect the r ubber
sleeve over time.
NOTE:
Always clean off electrodes after use with a gentle di s in f e c ta n t .

6
Electrode Type
There are literally hundreds of different styles of electrodes available
from various manufacturers. The J or V et Electrode is the industry
standard 3/32” shank. Other manufactur er ’ s electrodes will work on the
J or V et unit.
GT1: Blade Electrode
GT2: Small Loop Electrode
GT3: Large Loop Electrode
GT4: Fine Wire Electrode
GT5: Heavy Wire Electrode
GT8: Small Ball (2.38mm) Electrode
GT9: Heavy Ball (5mm) Electrode
GT1 GT2 GT3 GT4 GT5 GT8 GT9

7
Electrode St yles
Ball end:
These are best for hemostasis purposes.
Loop end: These electrodes work nicely with skin tumors or
gingival hyperplasia. The loop encircles and slices through tissue.
Circle and diamond loop configurations are available.
Straight: Thin wires work well for cutting. The heavier wires work
well for hemostasis.
Caution
1)
Radio frequency can interfere with heart pacemakers. Consult a
physician before exposing anyone wearing a pacemaker to radio
frequency waves.
2) Various ECG and monitoring equipment can be affected by radio
frequency waves. Place these items as far away from the Indifferent
Plate as possible.
3) When changing electrodes do not have the foot pedal
depressed.
4) Electrosurgery can give off sparks and ignite flammable
liquids or gases.
5) Electrosurgery still requires anesthesia or analgesia.
6) The operator can inflict wounds, burns, or shocks to themselves
through inappropriate use. Just as misuse of a scalpel can cut
you, so can misuse of electrosurgery units.

8
.Trouble
Shooting
1)
Before starting, make sure all connections are correct.
R e m e m b e r : Hand piece into black socket; IND plate into red socket.
2) Too much sparking: Adjust power down by 2 positions.
3) Will notcut:
a) Is the power light on?
b) Foot pedal connected?
c) ACTIVE light on when foot pedal is depr essed?
d) Electrode properly attached?
e) Indifferent Plate attached and properly placed?
Autoclaving Handpiece & Electrodes
The handpiece and electrodes should be thoroughly cleaned and
dried following a procedure. These can then be autoclaved in a
sterilization pouch at no more than 250° F for 10-15 minutes.