Boehringer 7700 Series Manual

Notice
Notice: : 


BoehringerLaboratories,Inc.ceasedproductionof7700Series
SuctionRegulators.Thesesuctionregulatorshavebeen
replacedbythe7800SeriesSuctionRegulators.



PleasecontactyourBoehringerRepresentativeorthefactory
tolearnmoreorrequestanevaluationofthe7800Series
SuctionRegulators.

The5yearwarrantyonyourexiting7700unitsisstillbeing
honored,aswellasmostreplacementpartsfortheseunits
canbeorderedfromthefactory.

Theseinstructionsforuseshouldonlybeusedforthe
informationtheycontainontheservicing7700Seriesunits,
pleaserefertocurrentinstructionsforuseontheserviceof
7800Seriesunits.


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Release July 2009 User Manual 7700, 7701, 7740

Q
QU UA AL LI IT TY Y A AN ND D S SE ER RV VI IC CE E
7700 Series Suction Regulator Technical Manual
and
Operating and Maintenance Instructions
This Manual Covers Boehringer Regulator Models
7700, 7701, and 7740

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Congratulations on your purchase of a Boehringer Suction Regulator. We consider our Suction
Regulators to be the best in the world. We are confident it will provide you with reliable, trouble-
free, safe patient care and low cost of operation. This product is intended for use by individuals
properly trained in suctioning procedures by or on the order of a physician. Please read these
instructions carefully.
Table of Contents
Contents....................................................................................................................................2
Warnings...................................................................................................................................3
Caution......................................................................................................................................3
Installation.................................................................................................................................3
Operation Continuous Models 7700, 7701 and 7740...............................................................3
Maintenance..............................................................................................................................4
Cleaning & Disinfection.............................................................................................................4
Continuous Models 7700, 7701, and 7740
Disassembly..............................................................................................................................4
Assembly...................................................................................................................................5
Test...........................................................................................................................................5
Troubleshooting ........................................................................................................................6
Specifications............................................................................................................................6
Warranty....................................................................................................................................7
Diagram, Continuous Models 7700, 7701, and 7740 ...............................................................8
Fittings/ Adapters......................................................................................................................9
Accessories...............................................................................................................................10+

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Clinical Use - All Models
The 7700 Series Continuous Suction Regulators are designed to provide accurate control of wall suction for use in
suction therapy procedures in the operating, recovery, intensive care unit, labor and delivery, neonatal, pediatrics,
patient bedside, and emergency room.
Warnings - All Models
This product is intended for use by or on the order of a physician. It is to be used by individuals who are properly
trained in medical suctioning procedures. Please read these instructions carefully.
Suction regulators must only be attached to vacuum systems. Do not attach to compressed air, nitrogen, or oxygen
sources.
Suction catheters, collection canisters and suction tubing must be carefully evaluated and selected to ensure
adequate function for the specific clinical environment and intended field of use.
There have been reports of increased intracranial pressures associated with endotracheal suctioning procedures.
"Persistent, increased ICP has been associated with neurological damage and fatalities". (Health Care Product
Comparison Systems, Regulators, Suction, ECRI Plymouth Meeting, PA Oct'97).
Caution - All Models
Always verify regulator operation (Droop) before use on a patient. "Droop" is the variation in indicated suction as
flow in the collection circuit changes from an occluded condition to a free flowing condition. We measure droop as
the change in indicated suction from no flow to full flow using a typical collection circuit with a 14 French catheter.
Occlude the 14 Fr catheter, set the regulator to 100 mm Hg and then allow flow. The change in the indicated
suction level is "Droop".
Intermitting Regulators: The automatic return of the patient circuit to atmosphere may not eliminate the need for
catheter tip irrigation. As with any automatic system, it is important to monitor the results to be sure that drainage is
occurring in a safe efficient manner. The fact that the intermitter is cycling is not an indication that effective
drainage is occurring.
Installation - All Models
All Boehringer suction regulators are supplied with 1/8” NPT female ports. This facilitates simple adaptation to any
quick connect system. Most fittings are available from Boehringer to adapt to your quick connect system. Contact
the factory for additional information.
1. Assemble desired male quick connect to the outlet on the back of the regulator using thread sealant.
2. Assemble the desired inlet fitting to the bottom of the regulator using thread sealant.
The regulator is now ready to be placed in service on your suction system.
Collection canisters are mandatory for all suction procedures. We strongly recommend the use of an overflow
protection device (filter or trap bottle) at all times between the regulator and collection canister. See Accessories at
the end of this manual.
Operation – Continuous Models 7700, 7701 and 7740
Models 7700 and 7740 incorporate a 3-way control valve with OFF, REG, and LINE. Model 7701 does not have a
control valve and constantly provides suction at the indicated level. The 7701 can be turned OFF by turning the
adjusting knob all the way in.
OFF: With control valve in the OFF position, suction is off and the collection circuit is returned to atmospheric
pressure by an internal vent port, a special feature of the Boehringer design.
REG: With control valve in the REG position, wall suction may be controlled to a specific level by turning the large
adjusting knob in the direction indicated. A spring opposed diaphragm assembly precisely controls the level of
suction provided at the lower port of the Regulator within the range of the gauge. This assembly "senses" changes

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in the patient collection circuit and makes appropriate adjustments to maintain the suction level that has been
selected. Regulated settings are verified by the large, easy to read gauge.
LINE: With control valve in the LINE position, the regulating mechanism is bypassed. Full wall suction is applied to
the patient collection system through the lower port of the Regulator. The LINE suction mode is engaged by
depressing the safety spring release and rotating the control valve to the line position. LINE setting is verified by
the exposure of the "LINE" warning at the bottom of the gauge label.
CAUTION: Full line suction may cause damage to sensitive tissue.
Maintenance - All Models
Boehringer Regulators have been designed to function for years of trouble-free service with minimum care. To
determine the maintenance schedule your medical facility should follow, we recommend the following:
•Periodically (as required, but no less than annually) inspect the overall condition of the instrument. Test the
gauge accuracy and check the instrument function as described under the Instrument Test section.
•Based on data from your periodic inspections, determine a cleaning schedule. Clean, inspect, lubricate,
and test based on your schedule (at least annually) and according to the Instrument Cleaning and
Disinfection, Instrument Lubrication and Instrument Test sections outlined below.
Cleaning and Disinfection - All Models
The most significant cause of regulator failure is the lack of a comprehensive cleaning and maintenance program.
For all models:
•At any time, the assembled regulator may be rinsed by drawing a 5% Liqui-Nox®/water solution through it.
After flushing, aspirate air through the regulator for 1 minute, or until dry.
•In the event suctioned material should enter the Regulator, or a scheduled cleaning is required, follow the
appropriate Disassembly procedures below.
•Regulators should be thoroughly cleaned and disassembled prior to any disinfection cycle.
•All regulator parts may be soaked in a solution of warm water and lab ware detergent such as Liqui-Nox®
and scrubbed using a soft brush to remove proteinaceous deposits.
Disinfection: It is the responsibility of the Medical facility to perform the steps outlined in this procedure and to
determine that the recommended cycles are providing an effective level of disinfection for the particular device in
use.
After cleaning, any of the following procedures are acceptable modes of disinfection for all parts of the regulator,
but not necessarily wall fittings. When disinfecting, be sure the device is disassembled and the wall fittings not
included.
•EtO
•Cidex®
•Sterrad®(Cidex® and Sterrad® are registered trademarks of Johnson & Johnson)
•Autoclave
Reference Boehringer Labs Disinfection Procedure, 4100.018, for more detail.
Disassembly – Continuous Models 7700, 7701 and 7740 (fig. 1)
1. Unscrew suction gauge (1) using a wrench. Do not twist the body of the gauge.
2. Back out lock screw (9) on housing assembly (8).
3. Unscrew diaphragm housing from Regulator body (13).
4. Remove valve retaining screw (10). Remove control valve (16).
5. In the unlikely event suctioned material should enter the diaphragm housing, it will be necessary to
disassemble and scrub the unit as follows:
a. Remove quad ring (6), retaining ring (2), & lens cap (3).
b. Force out diaphragm (4) by pressing on piston/stem assembly (5). Remove piston/stem assembly
(5) & spring (7).

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IMPORTANT:Always clean the parts prior to assembly. See the Cleaning and Disinfection section for
details.
Assembly and Lubrication – Continuous Models 7700, 7701 and 7740 (fig. 1)
After disassembling and cleaning the instrument, assemble and lubricate as follows. Parts are available from
Boehringer Labs and may be ordered by part number (P/N). Part numbers are found in figure 1 at the end of this
manual.
1. Lubricate control valve (16) with synthetic lubricant (P/N 1895)
2. Rotate valve as you insert it into the body. Remove the valve and inspect for dry areas. The valve must
have a thin layer of lubricant over its entire diameter.
3. Lubricate housing threaded sleeve and U-cup with a light coat of synthetic lubricant (P/N 1895).
4. Assemble diaphragm housing in reverse order of disassembly.
5. Inspect quad ring seal (6) for cuts or wear. Replace if needed (P/N 1461)
6. Assemble unit in reverse order of disassembly.
IMPORTANT:Always clean the parts prior to assembly. See the Cleaning and Disinfection section for
details.
Test – All Models
1. With the control valve in the REG or CONST position and a collection system attached with a 14 Fr.
catheter, regulator should control vacuum from 10-100% of full scale.
2. With the control valve in the REG or CONST position and housing turned all the way off, with suction port
occluded, gauge should read zero.
3. With the control valve in the REG or CONST, adjust regulator to the middle of the scale and occlude the
catheter. Gauge movement should be less than 5% of the full scale of the regulator. This measurement is
called droop.
4. The gauge should be accurate to ±4% of FS for any measurement within the range of the scale. If this is
not the case, please return the gauge to the manufacturer for repair/replacement.
CAUTION: Inaccurate gauge calibration may lead to a high suction condition applied to the patient.
5. With the control valve in the OFF position, suction should be at atmospheric and gauge should read zero.
With suction port occluded, gauge should read zero.
6. With the control valve in the REG or CONST position, set the Regulator to the middle of the scale and turn
control valve to OFF, then back to REG or CONST. Gauge indicator should not travel more than 20% past
the set point before settling at the desired level.
7. With the intermitter control valve in the INTERMIT position, the cycle time should be about 8 seconds on
and 4 seconds off (at 500 mmHg supply) or as desired. Adjust the timing screw CW to speed up the cycle
time and CCW to slow down the cycle time.
8. A final, important step in instrument maintenance is the identification of the instrument. This confirms that a
qualified individual performed service to accepted procedures and approved master gauges. An ID tag
should accompany the instrument, which indicates (as a minimum): date of service, individual performing
the service and the date of next service.
CAUTION:Have the regulator factory serviced if not performing to specifications. See Warranty and Repair
section for details on getting your regulator factory serviced.
IMPORTANT:Always test the reassembled unit after each maintenance procedure. See the Test section
below for exact test procedure.

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Troubleshooting- All Models
Boehringer Suction Regulators have been designed for years of trouble-free service. Should you experience
difficulty that is not the result of damage to the instrument, the most likely cause is aspiration of dirt and/or fluids
into the Regulator.
Symptom Probable Cause Solution
Instrument fails to provide suction at
the patient port. The supply or patient fittings are clogged Replace or clean the fittings
Sluggish, stuck or non-functioning
gauge Gauge orifice is clogged Remove gauge and clean orifice with .016” diameter wire
Instrument will not shut off or exhibits
high droop Dried fluids may have cut the quad ring seal. Replace the quad ring and test the unit as per above procedure.
Instrument fails to regulate suction Piston/Stem surface is binding
with foreign matter Disassemble and clean the instrument.
Erratic gauge movement resulting
from regulator adjustment Dried fluids on the piston/stem Clean fluids/debris off of stem and piston
IMPORTANT:Always test the reassembled unit after each maintenance procedure.
See the Test section for exact test procedure.
Specifications – All Models
•All Boehringer regulators are designed and manufactured in the U.S.A.
•Inlet and outlet fittings: 1/8 NPT
•Gauge accuracy ±4% FSO
•Regulation Accuracy: ±10% F.S. from full flow to zero flow with 14 FR catheter attached.
•Leak rate in OFF position: less than 1 cc/min
•Free Air Flow: Greater than 38 LPM with regulator set to 100 mmHg at standard JCAHO supply (305mmHg
@ 180 SCFH).
•Materials: polycarbonate, hard-anodized aluminum, stainless steel, Buna rubber, acetal copolymer.
Model Regulation Range User Selectable Modes Wt. (lb)* H x W X D
(in)
7700 20-200 mm Hg Off, Regulated Control, Line (source vacuum) 1.25 5 x 2¾ x 4
7701 20-200 mm Hg Regulated Control (no control valve) 1.25 5 x 2¾ x 4
7740 70-760 mm Hg Regulated Control (no control valve) 1.25 5 x 2¾ x 4
*Regulator weights are without fittings.
Operating and Storage Limits – All Models
We recommend that Boehringer Suction regulators be operated and stored at controlled conditions that typically
reflect the medical facility environment.

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Warranty and Repair – All Models
Boehringer Laboratories, LLC guarantees all 3700 Series LONG LIFE Suction Regulators for TEN
years. The 7700 Series Suction Regulators have a FIVE year warranty with the exception of the
gauge which has a one year warranty. Boehringer Laboratories, LLC will also warrant all fittings
purchased from and installed by Boehringer Laboratories, LLC for the same warranty period as the
suction regulator on which they were originally installed.
Boehringer Laboratories, LLC warrants to the original purchaser, new suction regulators purchased directly from
Boehringer Laboratories, LLC or from an authorized dealer or representative. This warranty guarantees the suction
regulators to be free from functional defects in materials and workmanship. We also guarantee that our suction
regulators will meet our published specifications.
All regulators returned for repair shall be clean and free from contamination prior to shipment to Boehringer
Laboratories. This requirement is for the safety of our employees as well as to comply with Federal Law prohibiting
the shipment of unmarked biohazard materials. If units are returned contaminated, a cleaning charge may result.
A service charge may be assessed on any unit returned that shows evidence of gross abuse.
Boehringer Laboratories, LLC is the only authorized warranty service center for our suction regulators. Any repair
service requesting a return authorization for repair will be asked to provide the name and location of the original
equipment purchaser. If this information cannot be provided, the repair is not covered under warranty and will be a
chargeable repair.
This warranty excludes acts of God, fire, flood and acts of war, terror or insurrection.
This warranty is not transferable from the original purchaser.
Boehringer Laboratories’ sole and exclusive remedy under this warranty is limited to repairing and/or replacing the
suction regulator. There are no other express or implied warranties beyond these warranties set forth above.
At Boehringer Laboratories, we are committed to lowering your suction regulator costs of operation!
▼▼▼▼▼▼▼▼▼
All repairs will be shipped back within five days of receipt of purchase order authorization.
For quality factory service, call 800-642-4945 or 610-278-0900 for your return authorization. Ship returns to:
Boehringer Laboratories, LLC
Repair Department
500 E. Washington Street
Norristown, PA 19401
New Products
We are continually striving to reach higher and higher standards of quality. We value your comments and input on
our suction regulators. If you are pleased with this instrument, please find out more about Boehringer Laboratories'
complete line of suction controls.
A free trial evaluation of any of our suction regulators can be arranged
by calling [phone] or 610-278-0900.

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FIGURE 1 – Models 7700 (pictured), 7701 and 7740
No. P/N Description No. P/N Description
1 9071 0-200 mmHg Gauge (7700, 7701) 8 2300 Diaphragm Housing Assembly
1 9072 0-100 mmHg Gauge (7970) 9 1479 Lock Screw
1 9073 0-760 mmHg Gauge (7740) 10 1468 Control Valve Retaining Screw
2 1465BF Lens Cap Retaining Ring 11 1454 Control Valve Retaining Washer
3 1981 Lens Cap (7700) 12 1484 U-cup
3 1982 Lens Cap (7701) 13 1458HC Reg Body
1
(7700, 7740)
3 2281 Lens Cap (7740) 13 1774HC Reg Body
1
(7701, 7970)
3 2042 Lens Cap (7970) 14 1462 Thumb Spring
4 1466 Regulating Diaphragm 15 1480 Thumb Spring Retaining Screw
5 2297 Piston/Stem Assembly 16 1453HC Control Valve
1
(7700, 7740)
6 1461 Quad Ring 17 353 Control Valve O-Ring
7 1464 0-200 mmHg Spring (7700, 7701)
7 1501 0-100 mmHg Spring (7970)
7 2278 0-760 mmHg Spring (7740)
1. The Reg Body and Control Valve are factory matched. Please call for details on replacement.

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Suction Fittings & Accessories
Location Configuration
requirement Order Number and Description
Patient
Connetction Port
Suction tubing attached directly
to the suction regulator Model 2469
High Flow Bubble Barb
Suction regulator attached to
collection canister, rollstand or
trap bottle Model 1487
DISS Body Adapter
Wall Adapter Port
Vacuum outlet requires a 90°
twist to release the regulator
Model 1492
Diamond Ohio
Vacuum outlet has a button to
release the regulator
Model 1493
Chemetron (NCG)
Rectangular Adapter
The adapter screws onto the
outlet and then is unscrewed to
remove (approximately 3 turns)
Model 1504
DISS Hand-Tight Nut and
Gland
Other Fittings Available
P/N Description P/N Description
905 90° Street Elbow 2098 Y-Connector
1494 NCG Round Adapter 2147 1/8” NPT Hex Nipple
1495 Schrader Adapter 2164 1/8” x 1/8” NPT Fitting
1496 Puritan Adapter 2257 Female Hose Barb
1497 Oxequip Adapter 2468 45° Elbow
1498 Medstar/Oxequip Adapter 9081 Medi-Vac Cart Mount
1505 DISS Wrench Nut and Gland 9084 Bulkhead Fitting – Sorenson Type (Medi-Vac)
1813 Right Angle Hose Barb 9089 Patient Tee Adapter
1975 1/8” NPT Coupler 33291 Pipe Nipple 1/8NPT x 1-1/2 Long
1977 DISS Barb Adapter
Please call 800-642-4945 or 610-278-0900 for special mounting applications and accessories.
Recommended Accessories ( to prevent clogging and contamination)
Float Vacuum Safety Bottle – Model 9074
This device will protect your regulators and suction system from fluid overflow. The bottle
provides a 250 ml backup overflow volume with shut-off capability provided by a precision
float mechanism.
Inline Filter – Model 7791
This device will protect your regulators and suction system from fluid overflow. It is a
hydrophobic, high flow, 1.0 micron filter and can be EtO sterilized. The filter goes in the
patient circuit between the waste canister and the regulator.

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Release July 2009 User Manual 7700, 7701, 7740
SETTING THE STANDARD
FOR RELIABILITY
Boehringer Laboratories, LLC
500 E. Washington Street
Norristown, PA USA 19401
For
Customer Service
Or
Technical Support
800-642-4945
www.boehringerlabs.com
email: [email protected]
Copyright 2004 Boehringer Laboratories, Inc.
European Representative: Medical Product Service, GmbH
Borngasse 20
35619 Braunfels, Germany
Tel: [phone]
Fax: [phone]
A free trial evaluation
of any of our suction regulators
can be arranged by calling
[phone] or 610-278-0900.