Buffalo filter Viro Vac User manual

Operator’s Manual
© 2011 BUFFALO FILTER®
595 Commerce Drive
Bualo, New York USA 14228
[phone] or [phone] fax
Division of Medtek Devices, Inc.
Customer Service: 800-343-2324 (U.S. Only) – www.bualolter.com
1-716-835-7000 (International)

Bualo Filter ViroVac™ Operator’s Manual: Page 1
For a period of one (1) year following the date of delivery, BUFFALO FILTER warrants the Viro-
Vac™ against any defects in material or workmanship. BUFFALO FILTER will repair or replace
(at BUFFALO FILTER’S option) the same without charge, provided that routine maintenance as
specied in this manual has been performed using replacement parts approved by BUFFALO
FILTER. is warranty is void if the product is used in a manner or for purposes other than
intended.
© 2011 BUFFALO FILTER®
Bualo, New York USA 14228
[phone]
www.bualolter.com
Division of Medtek Devices, Inc.
Customer Service: 800-343-2324 (U.S. Only)
1-716-835-7000 (International)
e revision level of this manual is specied by the highest revision letter found on either the
inside front cover or enclosed errata pages (if any).
Manual Number 901837
Unit Serial Number ______________________
9D93
MEDICAL EQUIPMENT WITH RESPECT TO
ELECTRICAL SHOCK, FIRE AND MECHANICAL HAZARDS ONLY
IN ACCORDANCE WITH UL 60601-1 AND CAN/CSA C22.2 NO. 601.1
is device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference and (2) this device must accept any
interference received, including interference that may cause undesired operation.

Bualo Filter ViroVac™ Operator’s Manual: Page 2
Section Title Page
1.0 SYSTEM DESCRIPTION 3
1.1 Introduction
1.2 Inspection
1.3 Operational Information
1.4 Cautions and Warnings
2.0 OPERATING INSTRUCTIONS 10
2.1 System Controls
2.2 ViroSafe® Filter Instructions
2.3 Set-up and Operation
2.4 Specications
3.0 MAINTENANCE 21
3.1 General Maintenance Information
3.2 Cleaning
3.3 Periodic Inspection
3.4 Troubleshooting
4.0 CUSTOMER SERVICE 22
4.1 Equipment Return
4.2 Ordering Information
5.0 TERMS & WARRANTY 23
Figure Title Page
1 Control Panel 14
Table of Contents
& List of Illustrations

Bualo Filter ViroVac™ Operator’s Manual: Page 3
1.1 Introduction
BUFFALO FILTER® ViroVac™ Smoke Evacuation Systems are designed to remove smoke and
noxious odors produced by surgical smoke during laser, electrosurgical, ultrasonic, argon, plasma
and mechanical instrument procedures.
e ViroVac™ Smoke Evacuation Systems have been designed with a high suction, high ow rate
centrifugal action pump. e ultra-quiet motor is used to draw the surgical smoke from the
surgical site through the vacuum tubing and into the ViroSafe lter where the surgical smoke is
processed by a series of lters. A single disposable lter is used to simplify the installation and
removal during lter changes. e lter is completely enclosed to protect the healthcare person-
nel from potential contamination during lter changes. One Bualo Filter ViroSafe lter contains
four dierent stages within to capture the smoke plume.
e rst stage ltration is a prelter whose function is to trap and remove gross particulate and
casual uid.
e second stage ltration is ULPA grade (Ultra Low Penetration Air) lter whose high-tech
patented (U.S. Patent #5874052) design captures particulates and micro-organisms from .1 to .2
microns at an eciency of 99.999%.
e third stage ltration uses the highest grade virgin activated carbon, especially designed for
Bualo Filter for the removal and adsorption of odors and toxic gases produced by burning tis-
sues. ese harmful gases may constitute a health hazard to healthcare professionals who are
subjected to prolonged exposure. e activated carbon used in the ViroVac™ Smoke Evacuation
Systems preferentially removes toxic organic gases rather than water vapor and provides optimal
odor removal.
e fourth stage ltration is an expanded foam used to trap activated carbon nes from migrating
out of the lter.
e electronic controls on the face panel of the ViroVac™ Smoke Evacuation System has been
designed “user friendly” and facilitate unit set up and operation. Please refer to Section 2.0 for
Operating Instructions.
1.2 Inspection
e ViroVac™ Smoke Evacuator has been thoroughly tested and inspected before shipment from
the factory. Please check the unit before using it to insure that no damage has occurred in transit.
If damage is evident, please contact BUFFALO FILTER Customer Service at 1-800-343-2324 (US
Only) or [phone] (International)
System Description
Section 1.0

Bualo Filter ViroVac™ Operator’s Manual: Page 4
In addition, please compare the accessories you receive with the standard accessories list below. If
an item is missing, please notify BUFFALO FILTER Customer Service.
Standard Accessories:
• Operator’s Manual
• Power Cord
• Pneumatic Footswitch
Please contact BUFFALO FILTER Customer Service to purchase the following accessories:
• Replacement Filters
• Remote Switch Activator
• Hoses, Tubing, Laparoscopic Kits, Adapters, Wands & Other Accessories
1.3 Operational Information
e operational information contained in this section is intended for the customer review of
regulatory issues. e information pertains to the use of the products both domestically and
internationally:
1. e BUFFALO FILTER ViroVac™ Smoke Evacuation System(s) complies with IEC60601.1
electrical specications in the following systems:
100/120 VAC 50/60 Hz, 220/240 VAC 50/60 Hz
2. Type of protection against electrical shock (UL 60601-1, Clause 5.1): Class I
3. Degree of protection against electric shock (UL 60601-1, Clause 5.2); Type CF Applied Part
4. Degree of protection against ingress of water (UL 60601-1, Clause 5.3): IPX1
5. Method of sterilization or disinfection recommended by BUFFALO FILTER (UL 60601-1,
Clause 5.4):
Unplug Unit. Wipe unit with a damp cloth containing mild disinfectant solution
or soapy water. Wipe dry with a clean cloth. Do not steam sterilize.
6. Degree of safety of application in the presence of ammable anesthetic mixture with air or
with oxygen or nitrous oxide (UL 60601-1, Clause 5.5): Not Suitable
7. Mode of operation (UL 60601-1, Clause 5.6): Continuous
8. Upon request, BUFFALO FILTER will provide the following:
Service and Repair Instructions, including Circuit Diagrams and Parts List
9. e fuses on the circuit board are to be serviced by an authorized BUFFALO FILTER techni-
cian as follows:
100/120 VAC, 50/60 Hz use 10 Amp 250 Volt Fuse (Slo-Blo)
220/240 VAC, 50/60 Hz use 8 Amp 250 Volt Fuse (Slo-blo)

Bualo Filter ViroVac™ Operator’s Manual: Page 5
10. is equipment needs special precautions regarding ElectroMagnetic Compatibility and
needs to be installed according to EMC information found in this manual.
11. is equipment utilizes mobile RF communications equipment that can aect medical elec-
trical equipment.
12. is equipment has been tested and found to comply with the limits for a Class A digital de-
vice, pursuant to Part 15 of the FCC rules. ese limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. is equipment generates, uses, and can radiate radio frequency energy and,
if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be required to correct the
interference at their expense.
13. is equipment operates in the following radio frequency specications:
RX modulation: Pulse-width coded, AM 100% modulation
TX Frequencies: Manchester encoded,
A = fc =/- 423.75kHz, B = fc +/- 484.29kHz
Low bit: transition A to B
High bit: transition B to A
e ViroVac™ Smoke Evacuation System(s) and all lters are not intended for contact with
patients.
1.4 Cautions and Warnings
Please note that all Cautions and Warnings should be read and understood before any use of this
equipment.
Attention, consult Accompanying Documents (Manual)
1.4.1 WARNINGS:
• Read this manual thoroughly, and be familiar with its contents prior to using this equipment.
• Test this equipment prior to a surgical procedure. is product was thoroughly tested at the fac-
tory before shipment.
• Disconnect the unit from the electrical outlet prior to inspecting system components.
• e ViroVac™ system is only intended and suitable for the applications that are mentioned in
the operating instructions.

Bualo Filter ViroVac™ Operator’s Manual: Page 6
• e smoke evacuator produces a strong vacuum. Adjust the airow and the position of the
inlet end of the wand or tubing to prevent patient injury and to prevent suction of surgical
materials and surgical specimens.
• If the smoke evacuator is activated while the airow is set to a high speed, it may produce a
sudden, strong suction action. Check the airow setting before activating the smoke evacu-
ator to prevent patient injury and to prevent suction of surgical materials and surgical
specimens.
• To maximize patient safety, the tubing or wand should not come into direct contact with
tissue. Otherwise, patient injury may result.
• e BUFFALO FILTER ViroSafe lters and single-use accessories are completely disposable.
Please dispose of according to your local codes or regulations and hospital policy. ese lters
may be disposed of or incinerated, whichever is appropriate for your institution.
• Care should be taken to route the power cord, foot pedal, smoke evacuation tubing, and remote
switch activator cable as to not cause a tripping hazard or crimping of cords.
• Do not operate this device in the presence of ammable or explosive gases.
• is equipment is intended for use by healthcare professionals only. is equipment may cause
radio interference or may disrupt the operation of nearby equipment. It may be necessary to
take mitigation measures, such as re-orienting or relocating the ViroVac™ or shielding the loca-
tion.
• e use of ACCESSORIES other than those specied by BUFFALO FILTER, or sold by BUF
FALO FILTER as replacement parts for internal components, may result in increased emissions
or decreased immunity of the ViroVac™.
• is equipment should not be used adjacent to or stacked with other equipment and that if
adjacent or stacked use in necessary, the ViroVac™ should be observed to verify normal opera-
tion in the conguration in which it will be used.
• Refer routine servicing to qualied biomedical technical personnel.
• Changes or modications not expressly approved by Bualo Filter could void the user’s author
ity to operate the equipment.
e warranty on this product is void if any of these warnings are disregarded.

Bualo Filter ViroVac™ Operator’s Manual: Page 7
1.4.2 CAUTIONS:
• Federal law (United States of America) restricts this device to be used by, or on the order of a
physician.
• Do not block either the tubing or the lter. If either becomes occluded or signicantly restrict-
ed, the motor/blower may overheat and cause the unit to fail.
• Using any other lter or accessory not supplied by BUFFALO FILTER may cause damage and/
or cause the system to be inoperable and may void the warranty.
• Care must be exercised in the installation of hoses, adapters and suction canisters. Failure to
follow the procedures outlined in this manual may result in overheating of the motor and may
void the unit warranty.
• is device is not intended for evacuation of uid. If uid is expected to be aspirated to the
ViroSafe Filter, uid collection devices must be installed with the vacuum hose assembly. Fail-
ure to install a uid collection device could cause lter blockage and electrical damage.
• e ViroSafe Filter should be changed according to the life of the lter. e ViroSafe Filter,
used with the ViroVac™ Smoke Evacuation System(s), should not be used for more the time
specied for each lter. Failure to change the lter may result in decreased eciency and
contamination of the electric motor, vacuum pump, and sound absorbing media within the
unit.
• Do not block either the tubing or the lter during operation. An occlusion or signicant restric
tion may cause the motor to overheat and the unit to stop working.
• e installation of this equipment must be on a at, level surface with all four (4) feet in contact
with that surface at all times. Failure to properly install the unit may cause reduced perfor-
mance, damage and/or cause the system to be inoperable and may void the warranty.
• e ambient temperature during operation must be kept between 50°F to 104°F (10°C to
40°C)
• e relative humidity during operation must be kept between 10% to 75%.
• An atmospheric pressure range of 700 hPA to 1,060 hPa.
• Storage environmental ambient temperature 14°F to140°F (-10°C to 60°C).
• Storage environmental relative humidity 10% to 75%.

Bualo Filter ViroVac™ Operator’s Manual: Page 8
ere are no user serviceable components in the ViroVac™ Smoke Evacuation System(s). Refer
service to qualied service personnel.
Use only with the power cord provided and always plug into a grounded outlet.

Bualo Filter ViroVac™ Operator’s Manual: Page 9

Bualo Filter ViroVac™ Operator’s Manual: Page 10
2.1 System Controls
e electronic system controls on the ViroVac™ Smoke Evacuation System(s) are easy to under-
stand and simple to use. e membrane control panel contains the suction on/o switch, suction
power adjustment, lter life indicator, and service indicator light. See Figure 1.
Note: Please be sure to read all instructions before installing accessories or operating this equip-
ment. Failure to do so may result in damage to the unit and/or personal injury.
• SUCTION ON & Standby
ere is one ON/OFF button on the ViroVac™ Smoke Evacuation System(s). e suction ON
switch on the electronic membrane control panel is located in the upper right hand corner of
the membrane panel. To power up the machine, connect the supplied power cord to a grounded
outlet and the appliance inlet on the back of the smoke evacuation system. Once power has been
applied, the yellow standby LED will illuminate on the keypad. Press the ON/OFF button on the
membrane panel to illuminate the “fan running” green LED indicating active suction. Place the
unit in “standby” by pressing the suction ON membrane switch to illuminate yellow STANDBY
LED. Turn the system main power o by unplugging the power cord from the appliance inlet on
the unit or the receptacle in the wall.
• SUCTION CONTROL
(Membrane Control Panel)
e amount of suction may be adjusted by pressing the suction control button. Each time the suc-
tion control button is depressed, the motor speed in increased. Once the suction has reached the
maximum level, depressing the button again will return suction level to lowest setting. e suc-
tion control should be set at the lowest practical setting to completely remove the surgical smoke
from the operative site. Each time the arrow button is pressed, the suction will change to a dier-
ent ow setting (low / medium / high).
• FOOTSWITCH / REMOTE SWITCH ACTIVATOR
(Membrane Control Panel)
e ViroVac™ Smoke Evacuation System also comes equipped with a pneumatic footswitch.
A footswitch or a Remote Switch activator may be added to any system by simply plugging in a
BUFFALO FILTER activation accessory into the appropriate jack on the front of the unit. When
the footswitch is plugged in, the unit may be turned on or o by depressing the footswitch pedal
once for each operation. For directions on using the Remote Switch Activator, please see instruc-
tions that accompany that product.
Operating Instructions
Section 2.0

Bualo Filter ViroVac™ Operator’s Manual: Page 11
• FILTER LIFE INDICATOR
(Membrane Control Panel)
e lter life indicator on the membrane control panel provides a visual indication of the status of
the life of the lter in use. e lter life indicator for the ViroVac™ Smoke Evacuation System will
automatically adjust according to the ow setting selected.
Low Flow Setting = 35 hours of lter life
Medium Flow Setting = 24 hours of lter life
High Flow Setting = 18 hours of lter life
e ViroVac™ Filter Life Indicator is factory set. All lter life timing is automatic.
Reading the Filter Life Indicator:
Install an unused ViroSafe Filter into the system per the installation instructions contained in
this operator’s manual. When the system is turned on, the lter life indicator with light up the
lemost GREEN LED, indicating 100% lter life. e indicator will progress thru subsequent
GREEN LEDs, to an AMBER LED as time elapses and begin ashing RED to indicate that the
lter has expended its useful life and requires replacement.
When the maximum lter life is consumed and the smoke evacuator is not powered o for
greater than six (6) hours or the main power is disconnected – a new lter is required to acti-
vate the smoke evacuator and make operational.
• FUSES
(circuit board)
Two 10 AMP fuses (8 AMP for 220/240 ViroVac™ systems) are located on the circuit board within
the housing of the system. It electrically protects both the system and the operator from damage
or injury. If the system is overheated or if there is an electrical surge in the electrical system, fuses
will break and the system will not operate.
When the Service light illuminates, please contact BUFFALO FILTER Customer Service for
system service instructions.

Bualo Filter ViroVac™ Operator’s Manual: Page 12
2.2 ViroSafe Filter Instructions
Note: Before installing or removing any lter, be sure that the system is turned o.
Filter Installation Instructions:
e installation of the ViroSafe Filter into the BUFFALO FILTER ViroVac™ Smoke Evacuation
System(s) is quick and simple.
1. Remove the ViroSafe Filter from the shipping box and discard any protective wrapping. Ex-
amine all lters for damage during shipping and storage. Do not install any lter with visible
signs of structural damage.
2. Insert the ViroSafe Filter into the lter receptacle. Be sure that the lter is seated completely
against the bottom of the lter chamber and clip is fully engaged.
WARNING: is device is not intended for evacuation of uid. If uid is expected to be
aspirated using the ViroSafe Filter or the BUFFALO FILTER ViroVac™ system, uid collection
devices must be installed with the vacuum hose assembly. Failure to install a uid collection
device may cause lter blockage and/or electrical damage.
Filter Removal Instructions:
1. Aer the ViroSafe Filter has been exhausted and requires changing, turn the smoke
evacuation system o and disconnect any accessory tubing attached to the lter.
2. Depress the lter tab and pull the ViroSafe Filter from the smoke evacuation system and dis-
pose of in accordance with hospital policy. e ViroSafe Filter may be disposed of or inciner-
ated.
3. Clean the unit with appropriate germicide prior to re-use. Follow the indicated instructions
for maintenance and installation of a new ViroSafe Filter.
CAUTION: Using any other lter or accessory not supplied by BUFFALO FILTER may cause
damage to the system and/or cause the system to be inoperable and may void the warranty.
WARNING: e ViroSafe Filter should be changed when the Filter Life Indicator shows red
ashing LED (replace). Failure to change this lter may result in decreased eciency and
contamination of the electric motor, vacuum pump, and sound absorbing media within the
system, or non-operation of smoke evacuator.

Bualo Filter ViroVac™ Operator’s Manual: Page 13
2.3 Set-Up and Operation
e operation of the ViroVac™ Smoke Evacuation System is as follows:
1. Install the ViroSafe Filter.
2. Attach unit power cord to the receptacle on the rear of the system. Plug the pronged power
cord into an appropriate grounded power outlet. Route power cord in such a way as to mini-
mize potential trip hazard by users or patients or pinch hazard that could cause electric shock.
3. Optional: Attach either Remote Switch Activator or Footswitch plug into appropriate jack on
rear or side of machine. Route footswitch or RSA cord in such a way as to minimize potential
trip hazard by users or patients or pinch hazard that could result in unreliable operation.
4. Ensure that the evacuation tubing is fully seated in the inlet of the lter. Route tubing in such a
way as to minimize potential trip hazard by users or patients.
5. Activate the power unit by:
a. Pressing the suction ON/OFF switch on the membrane panel,
b. Depressing and releasing the footswitch (if connected), or
c. Activating either CUT or COAG on the Electrosurgical Pencil (if Remote Activator is con-
nected).
6. Adjust the suction level to the desired setting by pressing the UP arrow button while the unit is
activated. Noise created by the smoke excavation power unit may be minimized by selecting
the lowest vacuum setting that eectively clears the operative eld of surgical smoke.
7. Deactivate the unit by:
a. Pressing the suction ON/OFF switch on the membrane panel,
b. Depressing and releasing the footswitch (if connected), or
c. Releasing either the CUT or COAG button on the Electrosurgical Pencil (If Remote Activa-
tor is connected).
8. Replace the ViroSafe Filter when the Filter Life Remaining Scale FLASHES RED (0% Life Re-
maining). Failure to change the lter will aect the performance of the system.

Bualo Filter ViroVac™ Operator’s Manual: Page 14
Figure 1
Unit Control Panel

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