Kent Scientific Rovent Jr. User manual

RoVent®Jr.
Automatic Ventilator
Volume & Pressure Controlled
User’s Guide

©2021 Kent Scientific Corporation, Documentation Version 2.00 for On-Unit Help Version 4.01 and
Firmware Revision 1.01.00-36A April 2021
RoVent®Jr.
Automatic Ventilator
Volume & Pressure Controlled
User’s Guide

TABLE OF CONTENTS
Introduction ......................................................................................1
System Components ...................................................................1
Navigating RoVent® Jr. ............................................................... 2
Touchscreen ........................................................................... 2
Control..................................................................................... 2
Display Options ..................................................................... 3
Menus.......................................................................................4
Alarms......................................................................................4
RoVent® Jr.
Automatic Ventilator.......................................................................... 5
Set Up Hardware.......................................................................... 5
Ventilating an Animal.................................................................. 7
Configure Settings....................................................................... 8
Troubleshooting ...........................................................................9
General Information.................................................................... 11
Contact ......................................................................................... 11
Warranty and Satisfaction Guarantee.................................... 11
Specifications ..............................................................................12
Index................................................................................................... 14

1
Introduction
The RoVent® Jr. is not designed, intended or authorized for use in human applications.
System Components
Front Panel
Back Panel
Exhaust
Air Inlet SERIAL #:
MADE IN U.S.A.
1116 Litchfield Street
Torrington, CT 06790
Tel: [phone]
Toll-Free: 888-572-8887
.1054”
.1887”
Power
USB
Remote
VOLTAGE: 12VDC
AMPS: 2.5A
Side Panel

2
Navigating RoVent® Jr.
Touch Screen
Dial Control
RoVent® Jr. Touch Screens oer quick access to most features and settings. Touch the
upper half of the Run Screen to reach the first Touch Screen.
There are two Dials, A and B. The function of a Dial varies based on:
• where you use it – from the Touch Buttons Screens, Run Screen, Menu Screens
or Main Menu.
• how you use it – turn, press or hold down.
Touch the bottom half of the Run Screen to open the pop-up Display Menu and quickly
scroll through charts, view other data or to silence Alarms.
Run
Screen
Power
Off
General
Setup
Help
Body
Weight
Start
Venlaon
Set Target
Pressure
Respiraon
Rate
Priority
Menu
More
Venlator
Set RR
133 bpm
Pressure -Pressure
MeasTV
0.2 mL
PeakPress
15 cmH2O
MinVol
26 mL/min
25
20
15
10
5
30
Stop Alarm
Chart1
Param
Hist Chart2
Chart 1 range
0 to 30 cmH20
First Touch Screen
(Screen buttons may vary based on the modules installed.)
Pop-Up Display Menu
(Screen buttons may vary based on the modules installed.)

3
Dials can have specialized uses in a few specific locations. The unit displays on-screen
instructions in those locations.
ACTION DIAL RESULT
Press
A
B
Back one level from Main Menu Screens
To Run Screen from Main Menu
To Run Screen from Touch Button Screens
Select a highlighted Menu item
To Main Menu from Home Screen
Clear Alarms if they are enabled
Move through Menu choices
Change setting values at Menus
A
B
Turn
A
B
—
To Main Menu from Run Screen
To Help at any Menu screen
Hold
down
See Main Menu
on page 4.
Display Options
Customizing the Run Screen Display:
To configure Parameters:
1. Touch:
1) the upper half of the Run Screen for the Touch Screen Menu.
2) “General setup”.
3) “Config”.
4) “Param Locations”.
2. Turn Dial A to choose a Parameter and Dial B to assign the Parameter to a
Run Screen location.
To configure Charts:
1. Touch:
1) the upper half of the Run Screen for the Touch Screen Menu.
2) “General setup”.
3) “Config”.
4) “Chart 1 setup” or “Chart 2 setup” to choose the type and timing for a chart.
2. Press Dial A to return to the General setup page of the Touch Screen Menu.
3. Touch “Set ranges” to choose the best-fitting axis range for the Parameters
on your charts.

4
Menus
The Main Menu is the non-touch gateway to all features and setting choices for
configuring RoVent® Jr., useful when a touch screen is not a feasible option, such as for
an operator with damp hands. Access the Main Menu through the Touch Screen Menu or
from the Run Screen by holding Dial A.
Main Menu
Body wgt
Vent
Modules
Config
Power off
Help
Set body weight
Turn Dial B to choose the weight
of your animal
Hold Dial A for Help.
30g
Nominal RR: 133bpm
Nominal Tidal Vol: 0.200mL
Nominal Minute Vol: 26mL/min
Main Menu
(Screen buttons may vary based on the modules installed.)
Alarms
RoVent® Jr. system alarms alert you to certain conditions that might require attention
while RoVent® Jr. is running.
There are two levels of alarms:
Level
Warning
Based On Banner Sound (If On) Configurable
Serious
Parameters or other
operating conditions
Parameters or other
operating conditions
Yellow
Red
1-beep pattern
3-beep pattern
Yes
Yes except for
system alarms
To clear a sounding alarm:
A triggered alarm produces a colored banner at the bottom of the screen describing the
cause of the alarm. The banner color corresponds to the severity of the alarm.
To silence the alarm:
Touch:
1) the bottom half of the Run Screen.
2) “Stop Alarm”.

5
RoVent®Jr. Automatic Ventilator
Set Up Hardware
Air Source:
If you are using a Compressed Gas Source or an Anesthetic Vaporizer:
1. Connect the Vaporizer Connection Assembly with Bypass to the back of
the RoVent® Jr.
2. Connect the compressed gas or vaporizer to the inlet side of the bypass
assembly.
C F
C F
If you are using air:
No additional hardware setup is necessary.

6
C F
Scavenging:
If you are using a Compressed Gas Source or an Anesthetic Vaporizer:
Connect a charcoal canister to the exhaust side of the bypass assembly.
Tubing Congurations:
Connecting Ventilator Tubing to an Endotracheal Tube:
Connect the intubation connector tubing directly to the INSP and EXP ports on
the front of the RoVent® Jr.
RoVent® Jr. with Intubation
Connector on Front

7
C F
Ventilating an Animal
1. Anesthetize and intubate the animal. Connect the endotracheal tube to the
intubation connector.
2. Touch “Start ventilator” to begin ventilation.
3. At the end of the procedure touch “Stop ventilator” to stop ventilation.
Allow the animal to recover.
RoVent®Jr. calculates the respiration rate and tidal volume
using the animal’s body weight. To change these settings,
touch “More ventilator”, then “Respiration rate” or “Set target
pressure/volume”. This will override the calculated settings.

8
C F
Configure Settings
Ventilator Calibrations
Note: Never perform these functions when an animal is connected to the ventilator.
1. Measure Deadspace
1) Set up tubing.
2) Touch “Calib & tests”, then “Measure deadspace”.
3) Firmly seal the end of the endotracheal tube with your finger or a cap,
ensuring that there is no air leakage.
4) Press Dial B. When asked to confirm measurement, press Dial B again.
2. Zero Sensors
1) Set up tubing.
2) Touch “Calib & tests”, then “Zero sensors”.
3) Press Dial B. When asked to confirm measurement, press Dial B again.
3. Make Ventilator Settings
Configure all anesthesia settings and air supply settings first (see page 7).
1. Touch:
1) “Select Ventilator” for access to all RoVent® touch menus.
2) “Body Weight” to choose the body weight that determines the
automatic settings for respiration rate and tidal volume. To change these
Parameters manually, Touch “Respiration rate” or “Set target volume”.
2. Choose a ventilator priority by touching “More ventilator”, then
“Priority Menu”.
Pressure Priority: RoVent® ventilates to a specified inspiratory pressure.
The default target pressure is 15cmH2O independent of body weight setting.
To change the target pressure, touch “Set target pressure”.
Volume Priority: RoVent® delivers an initial target pressure for the first breath,
then delivers a target tidal volume. The default target tidal volume is
calculated based on body weight. To change the target tidal volume, touch
“Set target volume”.
Note: You can change the initial target pressure for the
first breath, as well as the minimum and maximum allowed
pressures to customize the ventilator’s operating range as the
ventilator delivers the set tidal volume.

9
RoVent® Troubleshooting
Problem Possible Cause
Tube open to atmosphere
The highest measured
pressure in a breath cycle is
under 25% of the target and
the tidal volume is over target.
• Part of the tubing between the INS and EXP ports is open,
disconnected or leaking.
• There is a large mismatch between the set or calculated tidal
volume and the required tidal volume, or between the set
and actual body weights.
Tube blocked
The highest measured
pressure in a breath cycle is
under 25% of the target and
tidal volume is under target.
• The endotracheal tube is not seated correctly.
• There is a kink, blockage or foreign matter in the inspiratory
or expiratory lines.
Exhaust blocked
The breath pressure fails to
drop during the expiratory
phase of a breath.
• The cap is on the EXP port.
• The expiratory valve has failed.
Alarm Messages
Out of regulation
Over five consecutive
breaths, peak pressure was
more than 25% or less than
75% of your target.
• Requested Tidal Volume is too high for Pressure and RR .
Large rise in TV
Over the last four breaths,
there was an increase of more
than 25% in average tidal
volume compared to that of
the previous 16 breaths.
• Part of the tubing between the INS and EXP ports is open,
disconnected or leaking.
Large drop in TV
Over the last four breaths,
there was a decrease of more
than 25% in average tidal
volume compared to that of
the previous 16 breaths.
• There is a kink in the tubing.
• There is foreign matter in the tubing or in the exhaust valve.
• The exhaust outlet is blocked.
• The endotracheal tube is not seated correctly.
Deadspace calib
Dead space calibration
produced a negative tidal
volume.
• Deadspace calibration is incorrect for current tubing setup.
C F

10
Diagnostic Procedures
To access these diagnostic procedures, touch “Calib & tests”.
Purge
Resulting
Message
Meaning Possible Action
Success
Low bae
pressure
Clears any accumulations from the valves using high pressure air flow.
No leaks found. None is needed.
There is an internal
RoVent problem.
Contact Kent Scientific.
Leak Test
Checks for internal leaks as well as leaks in tubing circuits.
Resulting
Message
Meaning Possible Action
Test OK
Tubing leaks
No leaks found. None is needed.
The tubing is open
to the atmosphere
through a loose con-
nection or a crack or
hole in the tubing.
Tighten all connections and ensure that the circuit is air
tight. Run Leak test again. If the error recurs, contact
Kent Scientific.
Low bae
pressure or
Bae leaks
There is an internal
RoVent problem.
Retest making sure that the tubing is not flexed or
moved. If the error recurs, contact Kent Scientific.
C F

11
General Information
Thank you for purchasing a RoVent® Jr. We truly appreciate your business. We strongly advise
that you read and study this Owner’s Manual to appreciate fully all the features, benefits, and
capabilities of the RoVent® Jr.
Contact Information
Kent Scientific Corporation Toll-Free: 888-5RATTUS (888-572-8887)
1116 Litchfield Street Outside US: 860-626-1172
Torrington, Connecticut 06790 Fax: [phone]
E-mail: sales@kentscientific.com Internet: www.kentscientific.com
Disclaimer
Kent Scientific Corporation makes no representations or warranties, expressed,
statutory or implied, regarding the fitness or merchantability of the components of this
system for any particular purpose. Further, Kent Scientific Corporation is not liable for
any damages, including but not limited to, lost profits, lost savings, or other incidental
or consequential damages arising from ownership or use of these products, or for any
delay in the performance of its obligations under the warranty due to causes beyond its
control. In no case shall Kent Scientific Corporation’s financial obligation extend beyond
the cost of or replacement of the Kent product in question. Kent Scientific Corporation
also reserves the right to make any improvements or modifications to these products
described in this manual at any time, without notice of these changes. All brand and
product names used in this manual are the trademarks of their respective owners.
This product is not designed, intended or authorized for use in human applications.
Product Warranty
The RoVent® Jr has a one (1) year warranty including all parts and labor charges.
This warranty does not cover damage by any cause including, but not limited to, any
malfunction, defect or failure caused by or resulting from unauthorized service or parts,
improper maintenance, operation contrary to furnished instructions, shipping or transit
accidents, modifications or repair by the user, harsh environments, misuse, neglect,
abuse, accident, incorrect line voltage, fire, flood, other natural disasters, or normal
wear and tear. Changes or modifications not approved by Kent Scientific Corporation
could void the warranty. The foregoing is in lieu of all other expressed warranties. Kent
Scientific Corporation does not assume or authorize any party to assume for it any
other obligation or liability.

12
Satisfaction Guarantee
Should you experience diculty with the RoVent® Jr, our Technical Support Group will
assist you in trouble-shooting and determining if the product needs to be returned
to our facility. We will issue you a Return Manufacturer Authorization (RMA) number
before the product is shipped back for repair. It is at the discretion of the manufacturer
to replace or repair a defective part or product. Please call Customer Service at 888-
572-8887 to obtain a Return Manufacturer Authorization number. Shipments without a
RMA number will not be accepted. Please note that after our 30-day return policy
period ends, we will be happy to assist you with your application, but cannot issue any
credit or refund for a returned RoVent Jr.
Prior to shipment, please clean and decontaminate the product of any chemical,
biological, or isotopic contamination. Please include a completed Product Return Form
with the shipment. The form can be found on page 68 of this Owner’s Manual. This form
can be obtained by contacting Kent Scientific Customer Service at 888-572-8887 or
860-626-1172.
Specifications
Controller
Voltage 12 V, 2.5A
Dimensions
Weight
13.3cm (5.25in) x 19.1cm (7.50in) x 13.9cm (5.50in)
1.0kg
Power Supply
Input 100 to 240 V, 50 to 60 Hz, 1.0 A
Output 12 V, 2.5 A

13
RoVent
Control Modes Volume controlled, pressure controlled
Respiratory Rate Range 20bpm to 400bpm
Tidal Volume Range 0.01 – 12.0mL
Weight Range 3g to 1,250g
RoVent Jr. is a registered trademark of Kent Scientific Corporation.

14
Index
air flow .......................................... 10
alarms ..........................................2-4
anesthesia ...................................... 8
Anesthetic ................................. 5, 6
axis .................................................... 3
bae leaks .................................. 10
body weight .................... 2, 4, 7, 8
body wgt ........................................4
breath cycle ..................................9
bypass ........................................ 5, 6
calib & tests ............................ 8, 10
canister ...........................................6
charcoal ..........................................6
compressed gas ..................... 5, 6
config .......................................... 3, 4
data .................................................. 2
dials .................................................. 2
display menu ................................ 2
endotracheal tube ..................6-9
exhaust ................................... 1, 6, 9
expiratory lines ............................9
exp port ..........................................9
inlet ............................................... 1, 5
intubation connector tubing .. 6
leak test ........................................ 10
low bae pressure ................... 10
main menu .................................2-4
maintenance .................................11
more ventilator ................... 2, 7, 8
param ......................................... 2, 3
parameters .......................... 3, 4, 8
param locations ........................... 3
port ...................................................9
pressure ..........................2, 7-10, 13
pressure priority .......................... 8
priority menu ........................... 2, 8
range ................................ 2, 3, 8, 13
respiration rate .................... 2, 7, 8
run screen ..................................2-4
set ranges ...................................... 3
set target pressure ............ 2, 7, 8
set target volume ........................ 8
specifications ...............................12
stop alarm ................................. 2, 4
target pressure .................... 2, 7, 8
tidal volume ........................7-9, 13
tidal volume .................................. 9
timing .............................................. 3
touch screen menu ................ 3, 4
triggered alarm ............................4
tubing configurations ................ 6
TV ......................................................9
vaporizer ................................... 5, 6
ventilator ............................... 2, 6-8
view .................................................. 2
volume priority ............................ 8
warranty .........................................11

1116 Litchfield Street
Torrington, Connecticut 06790
Local: 860-626-1172 Toll-Free: 888-572-8887
Part No. 10-6000-28