Datex-Ohmeda Centiva-5 User manual

Centiva/5

User’s Reference Manual

Software Revision 2.n

User Responsibility

This Product will perform in conformity with the description thereof contained in this operating manual and accompanying labels and/or inserts, when assembled, operated, maintained and repaired in accordance with the instructions provided. This Product must be checked periodically. A defective Product should not be used. Parts that are broken, missing, plainly worn, distorted or contaminated should be replaced immediately. Should repair or replacement become necessary, Datex-Ohmeda recommends that a telephonic or written request for service advice be made to the nearest Datex-Ohmeda Field Service Support center. This Product or any of its parts should not be repaired other than in accordance with written instructions provided by Datex-Ohmeda and by Datex-Ohmeda trained personnel. The Product must not be altered. The user of this Product shall have the sole responsibility for any malfunction which results from improper use, faulty maintenance, improper repair, damage or alteration by anyone other than Datex-Ohmeda.

CAUTION U.S. Federal laws restrict this device to sale by or on the order of a licensed medical practitioner. Outside the U.S.A. check local laws for

any restriction that may apply.

Datex-Ohmeda products have unit serial numbers with coded logic which indicates a product group, the year of manufacture and a sequential unit number for identification.

AAA B 12345

This alpha character indicates the year of product manufacture and when the serial number was assigned. 1 = 2001, 2 = 2002 etc.

URM Centiva/5, CM-920041, rev. 2.22

TIM GmbH

Table of Contents

1 Introduction

2 Safety

3 General description

4 Concept of operation

1.1 How to use this manual	1-2
1.2 Symbols used in this manual or on the equipment	1-3
1.3 Abbreviations used in this manual or on the equipment	1-5
2.1 Safety	2-2
3.1 General description	3-2
3.1.1 Intended use	3-2
3.1.2 Principle of operation	3-2
3.1.3 Ventilation modes	3-3
3.1.4 Additional function	3-4
3.2 Supply	3-5
3.2.1 Electrical supply	3-5
3.2.2 Gas supply	3-5
3.3 Positioning	3-6
3.4 Main components	3-7
3.5 System controls	3-8
3.5.1 Front side	3-8
3.5.2 Rear side	3-9
4.1 Concept of operation	4-2
4.1.1 Screen content	4-3
4.1.2 Soft keys	4-5
4.1.3 I : E Ratio soft key	4-6

URM Centiva/5, CM-920041, rev. 2.22

0-1

Table of Contents

4 Concept of operation	4.1.4 Timing parameters	4-7
continued	4.1.5 Graphics	4-8
	4.1.6 Numerical patient data	4-9
	4.1.7 Status information	4-10
	4.1.8 ComWheel	4-12
	4.1.9 Changing a parameter	4-13
	4.1.10 Menu button	4-14
	4.1.11 Selecting a menu topic	4-15
	4.1.12 Activating a menu function	4-16
	4.1.13 Submenus	4-17
	4.1.14 Open a submenu	4-19
	4.1.15 Change a parameter in a submenu	4-20
	4.1.16 Alarm silence	4-22
5 Preparation	5.1 Electrical supply	5-2
	5.1.1 Mains supply	5-2
	5.1.2 Back-up battery supply	5-4
	5.2 Gas supply	5-5
	5.2.1 Dual gas supply	5-5
	5.2.2 Single gas supply	5-6
	5.3 Set up of expiration valve	5-7
	5.4 Breathing gas conditioning	5-8
	5.5 Breathing circuit	5-9
	5.5.1 Connection with HME	5-9
	5.5.2 Connection with active humidifier	5-10
	5.6 Placing the device	5-12
	5.6.1 Control panel	5-12
	5.6.2 Entire system	5-14
	5.7 Turn ON and OFF	5-15
	5.8 Self test	5-16
	5.8.1 Power-up test	5-16
	5.8.2 System test	5-17
	5.8.3 In-operation test	5-18
	5.9 Select the type of patient	5-19
	5.10 System test menu	5-20
	5.11 Starting the ventilator	5-22

0-2	URM Centiva/5, CM-920041, rev. 2.22

Table of Contents

6 Operation

7 Cleaning and Sterilization

6.1 Adjust ventilation modes	6-2
6.1.1 Select a ventilation mode	6-2
6.1.2 Default ventilation values	6-3
6.1.3 Changing ventilation modes	6-4
6.2 Adjust ventilation parameters	6-6
6.2.1 VCV	6-6
6.2.2 SIMV-VC	6-9
6.2.3 Bi-Level	6-12
6.2.4 Bi-Level/PSV	6-14
6.2.5 CPAP/PSV	6-17
6.2.5 CPAP/Apnea	6-19
6.3 Additional functions	6-21
6.3.1 Standby	6-22
6.3.2 ASR (Automatic Suction routine)	6-24
6.3.3 Parameter menu	6-32
6.3.5 Alarm AUTOSET	6-38
6.3.6 ARC (Airway Resistance Compensation)	6-41
6.3.7 NEB (Nebulizer drug delivery)	6-44
6.3.8 System test	6-50
6.3.9 NIV (Non Invasive Ventilation)	6-51
6.3.10 APD (Automatic Patient Detection)	6-53
6.3.11 OCV (Online O2 sensor Calibration)	6-54
6.3.12 Short cuts	6-55
7.1 General advice	7-2
7.2 Disassembly	7-3
7.2.1 Used with HME	7-3
7.2.2 Used with active humidifier	7-4
7.3 Expiration valve	7-5
7.3.1 Removing expiration valve assembly	7-5
7.3.2 Disassemble expiration valve assembly	7-7
7.4 Clean and sterilize	7-8
7.4.1 Housing and control panel	7-8
7.4.2 Expiration valve	7-8
7.5 Reassembly	7-9
7.5.1 Reassemble expiration valve assembly	7-9
7.5.2 Reinsertion of expiration valve assembly	7-10

URM Centiva/5, CM-920041, rev. 2.22,

0-3

Table of Contents

8 Alarms and messages

9 Maintenance

10 Technical data

11 Parts list

8.1 Alarm modality	8-2
8.2 Alarm messages	8-4
8.3 Other messages	8-8
8.3.1 Messages during power up	8-8
8.3.2 Messages during system test	8-11
8.3.3 Messages during O2 calibration	8-19
8.3.4 Messages during operation	8-20
9.1 General	9-2
9.2 Oxygen sensor calibration	9-3
9.2.1 Start calibration	9-3
9.2.2 Stop calibration	9-4
9.3 Expiration valve	9-5
9.3.1 Remove valve assembly	9-5
9.3.2 Replace components	9-7
9.3.3 Reassembly	9-8
9.3.4 Reinsertion of expiration valve assembly	9-9
9.4 Additional maintenance	9-10
9.4.1 Every twelve (12) months	9-10
9.4.2 Every twenty four (24) months	9-10
10.1 General	10-2
10.2 Supplies	10-3
10.3 Ventilator characteristics	10-4
10.4 Controls and ranges	10-8
10.6 Measurement functions	10-9
10.7 Monitoring functions	10-10
10.8 Control panel	10-13
11.1 Spare parts	11-2
11.2 Accessories	11-2

0-4	URM Centiva/5, CM-920041, rev. 2.22

1Introduction

In this section 1.1 How to use this manual	1-2
1.2 Symbols used in this manual or on the equipment	1-3
1.3 Abbreviations used in this manual or on the equipment	1-5

URM Centiva/5, CM-920041, rev. 2.22

1-1

1 Introduction

1.1 How to use this manual

This manual describes the operation of the

Centiva/5 ICU ventilator

Release 2.2n.

The Centiva/5 ICU ventilator may be used together with additional accessories, such as trolleys, compressors etc. These accessories come with a separate operation manual.

Use this manual together with the manuals for optional accessories.

1-2	URM Centiva/5, CM-920041, rev. 2.22

1 Introduction

1.2 Symbols used in this manual or on the equipment

Warnings and Cautions tell you about dangerous conditions that can occur if you do not follow all instructions in this manual.

WARNING Warnings indicate a condition that can cause injury to the operator or the patient.

CAUTION Cautions indicate a condition that can cause damage to the equipment. Read and follow all warnings and cautions.

Alarm silence touch key

Menu touch key

Left turn ComWheel to decrease value

Right turn ComWheel to increase value

Rotate ComWheel to change value

Push ComWheel to confirm selection (ENTER)

URM Centiva/5, CM-920041, rev. 2.22

1-3

1 Introduction

On (power)

Off (power)

Earth ground

Protective earth ground

Equipotential

Type B equipment

Input (Expiratory port)

Output (Inspiratory port)

Attention, refer to product instructions, EN/IEC 60601-1

10101

xxxx

Serial data transfer connection

Systems with this mark comply with the European Council Directive (93/42/EEC) for Medical Devices when they are used as specified in their Operation and Maintenance Manuals. The “xxxx” is the certification number of the Notified Body used by the manufacturer’s Quality Systems.

Nebulizer gas supply

DC external power supply

1-4		URM Centiva/5, CM-920041, rev. 2.22

1 Introduction

1.3 Abbreviations used in this manual or on the equipment

Vent. mode	Ventilation mode
VCV	Volume constant Controlled Ventilation
SIMV - VC	Synchronized Intermittent Controlled Ventilationvolume constant
Bi-Level	Bi Level pressure controlled ventilation
PSV	Pressure Support Ventilation
CPAP	Continuous positive airway pressure
CPAP/PSV	CPAP with pressure support ventilation
CPAP/Apnea	CPAP with apnea Bi-Level back up ventilation
APD	Automatic patient detection
ARC	Airway resistance compensation
ASR	Automatic suction routine
NEB	Nebulizer
NIV	Non Invasive Ventilation
OCV	Online oxygen calibration during ventilation
Endot.tube	Endotracheal tube
Trach.tube	Tracheal tube
Pmax	Safety pressure setting
Plimit	Pressure limit setting
Pinsp	Inspiratory pressure setting
PS	Pressure Support pressure setting
Ppeak	Highest airway pressure, measured within last breath
Pmin	Lowest airway pressure, measured within last breath
PPEEP	Positive End Expiratory Pressure setting
Paw	Airway pressure in general
Rate	Breaths per minute
I:E	Inspiratory to Expiratory time ratio
Ramp	Ramp time between lower and upper Bi-level
PS ramp	Ramp time between PEEP level and PS pressure level
Time window	Trigger time window
t	Time in general
Vt	Tidal volume setting
TV	Tidal volume, measured
MV	Minute volume, measured
I-Flow	Inspiratory flow setting
Trigg.	Trigger flow required to trigger an assisted breath
Byflow	Bias flow
PS endflow	End-of-flow criteria for PS pressure support
Flow	Flow in general

URM Centiva/5, CM-920041, rev. 2.22

1-5

1 Introduction

Fi-O2 Inspiratory O2 concentration setting

O2-I Inspiratory O2 concentration, measured

I On (power), line supply

O Off (power), line supply

or AC Alternating current or DC Direct current

Ref Stock number

SN Serial number

Rev. x.nn Software revision number

O2 40 … 80 PSI O2 gas supply input with a pressure range of 40 … 80 PSI AIR 40 … 80 PSI AIR gas supply input with a pressure range of 40 … 80 PSI

24V/3A DC DC supply input with 24 V and a maximum current of 3 A Serial Port Connection for serial data transfer

1-6	URM Centiva/5, CM-920041, rev. 2.22

2Safety

In this section 2.1 Safety

2-2

URM Centiva/5, CM-920041, rev. 2.22

2-1

2 Safety

2.1 Safety

Reference This manual describes the operation of the

URM Centiva/5, CM-920041, rev. 2.22

Release 2.2n.

Safe Operation To ensure safe operation of the Centiva/5 use the system only as intended. Operators need to be familiar with this Operation Manual prior to operating the system. Only trained operators are allowed to use this system. Always ensure compliance with the requirements of this Operation manual and with the local governmental or other authority’s requirements for operating ICU ventilators.

Classification

Safety standards

The Centiva/5 is a device of group IIb, according to the directive 93/42/EEC, Annex IX, Rule 9 for medical products.

Classification according to EN 60601-1 for electro medical devices

DEVICE OF PROTECTION CLASS I, with internal power supply. Protection against electrical hazard is performed by grounded operation.

DEVICE TYPE B, according to safety grade for electrical hazard

CONTINUOUS OPERATION according to described operation modes.

The Centiva/5 is designed with respect to the following safety standards:

-EN 60601-1, Medical electrical equipment, General conditions

-EN 794-1, Special requirements for lung ventilators

-EN 475, Specification for warning, advice and information in anesthesia and critical care

-EN 60601-1-4, software controlled medical devices

-EN 60601-1-2, electro magnetic compatibility

2-2	URM Centiva/5, CM-920041, rev. 2.22

2 Safety

Safety features

Patient Safety

The following safety features are built into the Centiva/5 to warn the operator in case of risk to the patient.

Device alarms

Control of	Control for
Gas supply	O2 supply fail, AIR supply fail
Disconnection	Disconnection of patient and breathing
	system
O2 concentration	O2 concentration
Electrical energy	Line supply fail, battery supply fail
Device’s control system	Watchdog alarm
Patient alarms
Control of	Control for
High pressure	High pressure alarm
Minute volume	Upper and lower minute volume alarm
Rate	Upper and lower rate alarm
Airway pressure	Pressure sustained

The Centiva/5 shall be operated by or on the order of a physician. The Centiva/5 shall only be operated by qualified medical personal, to ensure adequate intervention in case of a device malfunction.

Constant surveillance of a patient connected to an ICU ventilator by trained personal is required.

Ensure alarm limits are set according to the patient’s situation and ensure alarms are activated whenever a patient is connected to the system.

Use only breathing circuits and accessories approved by the manufacturer of either the Centiva/5 or the accessory.

URM Centiva/5, CM-920041, rev. 2.22

2-3

2 Safety

Patient Safety (cont.)

WARNING

Residual risk

Always perform the Centiva/5’s system test before using the ventilator.

Never perform a system test when a patient is connected to the Centiva/5.

This system test is designed to test all safety relevant features and components prior to the start of ventilation.

In case of emergency the system test may be bypassed. The system will recognize this status as “No test” and displays this status in the screen to remind the operator to perform the system test at their earliest convenience.

If the system test is not performed, the system does not know the correct breathing circuit’s specifications necessary for optimized compliance and resistance compensation. In this case the ventilator may not work with the specified accuracy and tolerances.

To reduce the risk of a device malfunction, redundant systems are integrated into the Centiva/5.

High and medium risk functions are designed to provide an alternate system in case of a first failure.

Low risk functions are tested with the power-up test each time the unit is powered up prior to operation.

The system provides for an adjustable pressure limiter in the VCV and

SIMV –VC modes. In the VCV or SIMV-VC modes the Plimit defaults to 20 cmH2O in Pediatric and 30 cmH2O in Adult mode.

The system has an additional second level safety pressure function,

Pmax, that is active in all modes. The Pmax defaults to 30cmH2O in Pediatric and 40 cmH2O in the Adult mode, when in the VCV or SIMV-VC

modes. The Pmax default is set to 18 cmH2O in Pediatric and 21 cmH2O in the Adult mode, when in Bi-Level, CPAP/PSV or CPAP/Apnea modes.

2-4	URM Centiva/5, CM-920041, rev. 2.22

2 Safety

Risk of electrical hazard

Fire hazard

Risk of electromagnetic interference

The Centiva/5 is designed to be operated only in electrical environments according to VDE 0107 or EN 60601-1.

Prior to cleaning, repair or maintenance always disconnect the system from the electrical supply. Prior to reconnecting the system to the electrical supply ensure the housing is dry.

Prior to connecting the device to an electrical supply check your local supply voltage to match the operation voltage of the device, which is marked on the serial plate on the rear side of the device.

Store the system only according to the given specifications for temperature and humidity.

Operate the system only according to the given specifications for temperature and humidity. In case system’s temperature is lower or higher than specified, allow the system to stabilize for one hour before operation.

Do not use materials such as Ammonia, Phenol or Acetone to clean this device.

Do not use the Centiva/5 when there is doubt in the proper function of the electrical earth ground in the installation environment

Do not use the Centiva/5 in the presence of flammable anesthetics.

Devices radiating electromagnetic fields in a strength beyond the requirements of EN 60601-1-2 can influence the safe operation of the Centiva/5 and can cause risk to the patient.

Devices radiating high frequency fields and installed near the system can influence the safe operation of the Centiva/5 and can cause risk to a patient.

Do not use cellular phones (mobile phones) within 10 meters of the Centiva/5. Otherwise this may result in a possible influence on the safe operation of the device and can cause risk to a patient.

Do not use the Centiva/5 in the presence of nuclear magnet resonance devices (NMR, MRI).

URM Centiva/5, CM-920041, rev. 2.22

2-5

2 Safety

Accessories The Centiva/5 has a wide range of accessories available.

Use only accessories that are listed in the Centiva/5 accessories list.

Prior to connecting a network or any other data management transfer system to the serial output of the Centiva/5 verify that these devices are in compliance with EN 60950 standard for data transfer safety, or EN 60601-1 medical electrical equipment.

The person connecting other systems (electrical or other) to Centiva/5 is responsible that the entire system meets the requirements of EN 60601-1.

Monitoring The Centiva/5 is equipped with monitoring features that will help to monitor and control the patient’s ventilation situation and to detect changes in the ventilation parameters.

Changes in the ventilation parameters can be caused by:

•changes in the patient’s status

•changes in the settings

•failure in operation

•device malfunction

•changes in the electrical supply

•changes in gas supply

A resuscitator for manual ventilation shall be present to maintain ventilation in case of a device malfunction.

Service and maintenance The Centiva/5 shall be checked at least every twelve months for safety and proper function.

Only authorized service personal shall perform repair, service and maintenance to the device.

The maintenance intervals and procedures are documented in section 9, ”Maintenance”.

2-6	URM Centiva/5, CM-920041, rev. 2.22

2 Safety

Responsibility of the

manufacturer

The manufacturer is not responsible for any function change, damage or injury to patient or operator that is caused by misuse or by disregard of the safety advices mentioned in this manual.

The user or owner is responsible for the function of the system if the device is serviced, maintained or repaired by unauthorized personnel.

The user or owner is responsible for the function of the system if the device is misused or not used according to the instructions in this Operation manual .

Manufactured by

Manufactured for

Salvia Lifetec GmbH & Co KG
Niederhöchstädter Strasse 62
61476 Kronberg
Germany	0123

Datex-Ohmeda Inc.

Ohmeda Drive

P.O. Box 7550

Madison, WI 53707-7550

USA

Phone. [phone]

Fax: [phone]

URM Centiva/5, CM-920041, rev. 2.22

2-7

2 Safety

Notes

2-8	URM Centiva/5, CM-920041, rev. 2.22

3General description

In this section 3.1 General description	3-2
3.1.1 Intended use	3-2
3.1.2 Principle of operation	3-2
3.1.3 Ventilation modes	3-3
3.1.4 Additional function	3-4
3.2 Supply	3-5
3.2.1 Electrical supply	3-5
3.2.2 Gas supply	3-5
3.3 Positioning	3-6
3.4 Main components	3-7
3.5 System controls	3-8
3.5.1 Front side	3-8
3.5.2 Rear side	3-9

URM Centiva/5, CM-920041, rev. 2.22

3-1

3 General description

3.1General description

3.1.1Intended use Centiva /5 is a critical care ventilator used for intensive care ventilation

3.1.2 Principle of

operation

of humans.

This ventilator is intended to be used for adult patients and children age 1 year + or bodyweight greater than or equal to 5 kg.

This ventilator is designed to maintain and support existing and returning patient’s spontaneous breathing.

Centiva/5 is a time controlled, volume constant, pressure cycled, software controlled system.

The expiration valve is electromechanically controlled with a locking system to provide proper seating of the PEEP valve assembly.

The system uses a flow trigger and allows patient’s free breathing over a built-in free breathing valve.

The system provides for a permanent Byflow in the breathing circuit and allows patient’s spontaneous breathing in all modes.

3-2	URM Centiva/5, CM-920041, rev. 2.22

3 General description

3.1.3 Ventilation modes VCV (Volume Controlled Ventilation)

Controlled volume constant ventilation with the ability of patient’s spontaneous breathing between the mandatory breaths. Additional capabilities are:

-PLV - Pressure Limited Ventilation

-IRV - Inverse Ratio Ventilation

SIMV - VC (Synchronized Intermittent Mandatory Ventilation – Volume Constant)

Synchronized volume constant ventilation with the ability of patient’s spontaneous breathing in between the mandatory breaths. Additional capabilities are:

-PLV - Pressure Limited Ventilation

-IRV - Inverse Ratio Ventilation

-PSV - Pressure Support Ventilation

Bi-Level (Bi-Level)

Synchronized pressure controlled ventilation combined with patient’s free spontaneous breathing during the entire breathing cycle. Additional capabilities are:

-IRV - Inverse Ratio Ventilation

-PSV - Pressure Support Ventilation on lower Bi-Level pressure level

CPAP/PSV (Continuous Positive Airway Pressure/ Pressure Support Ventilation)

Spontaneous breathing with environmental pressure or positive airway pressure.

Additional capabilities are:

- PSV - Pressure Support Ventilation on CPAP pressure level

CPAP/Apnea (Continuous Positive Airway Pressure / Apnea back-up) Spontaneous breathing with environmental pressure or positive airway pressure with PSV - Pressure Support Ventilation on CPAP pressure level

Additional capabilities are:

- Bi-Level back up ventilation mode with pre-adjusted settings if patient activates the apnea alarm.

For more details refer to section 6 “operation”.

URM Centiva/5, CM-920041, rev. 2.22

3-3

3 General description

3.1.4. Additional functions APD (Automatic Patient Detection)

Function that provides automatic detection of a patient being connected to the ventilator in all ventilation modes.

ARC (Airway Resistance Compensation)

Function that provides adjustable inspiratory and expiratory compensation of the tube’s resistance in all spontaneous breathing modes to ease patient’s spontaneous breathing.

ASR (Automatic Suction Routine)

Function that provides an automatic procedure for bronchial suction preparation with a pre-oxygenation phase, a pressure free opening of the y-piece and a post-oxygenation with automatic return to previous settings in all ventilation modes.

NEB (Nebulizer drug delivery)

Function that provides drug delivery in all ventilation modes to the patient via the breathing circuit by means of a so called “jet nebulizer”.

NIV (Non-Invasive Ventilation)

Function that provides leakage compensation in all ventilation modes to allow ventilation of leaking systems such as nasal or face mask , larynx mask or uncuffed tubes.

OCV (Online O2 sensor Calibration during Ventilation)

Function that allows O2 sensor calibration during ventilation.

3-4	URM Centiva/5, CM-920041, rev. 2.22

3 General description

3.2Supply

3.2.1Electrical supply The Centiva/5 can be configured to be supplied with electrical power

3.2.2 Gas supply

Special notice

from a line supply voltage of 230 V or 115 V AC.

The Centiva/5 can be supplied by a 24 V DC external battery pack (option) for e.g. inner clinical transportation purposes.

As a back-up supply Centiva/5 is provided with an internal battery that supports operation for a minimum of 30 minutes (battery fully charged).

The Centiva/5 is designed to be supplied with O2 and AIR. Single gas operation with either AIR or O2 can be selected .

Ensure clean and dry medical gas supply sources.

3.3 Positioning

The Centiva/5 is design to be positioned on

•a trolley or cart (option)

•a rail mount (option)

•a ceiling pendulum (option)

The control panel of Centiva/5 is tiltable and detachable. The control panel can be mounted up to a 3 meter distance from the main engine (remote control).

Special notice Ensure the Centiva/5 is securely mounted.

URM Centiva/5, CM-920041, rev. 2.22

3-5

3 General description

3.4 Main Components

The Centiva/5 is a system that can be separated into three (3) user accessible components

•The main engine

•The control panel

•The expiration valve

These three assemblies can be separated by the user without using any tools.

Main engine

Control panel

Expiration valve

3-6	URM Centiva/5, CM-920041, rev. 2.22

3 General description

3.5System controls

3.5.1Front side

Centiva/5

	Bi-Level		Tube : E 7.5 50%			Adult
	15					MV-E		12
						5.2Liter2
	10					Vt-E350mL
	5
								21
						Ppeak
	Paw					14cmH2O
Screen	cmH2O
	40					Pmin		3cmH2O
	20
						O2-I		25
	Flow
							21 %
	L/min							18
	-20					Rate		40
	-40							8
							181/min
	Fi02	Rate	I:E	Ramp	P-Insp	PEEP		PS
	21	12	1:2	0.2	10	3		5
	%	1/min		sec	cmH2O	cmH2O cmH2O

Soft keys

Stopper

			Insp. port
Exp. port	Nebulizer			ON/OFF

Alarm lights

Silencer

Menu key

ComWheel

I

O

URM Centiva/5, CM-920041, rev. 2.22

3-7

3 General description

3.5.2 Rear side

Serial plate

Caution. U.S. Federal laws restrict this device to sale by or on the order of a licensed medical practitioner.Outside the U.S.A. check local laws for any restriction that may apply.

				Line
					switch
2		Com	Gro		e
V
4		o		Lin
C			und		nle
D		p			i
		r	co		t
inl		t
				n
	e24V/3A DC			.
	t

O

A

2

IR

g

g

as

a

i

O2

s

AIR

nl

in

280 ... 600 kPa or 40 ... 80 PSI

et

le

t

3-8	URM Centiva/5, CM-920041, rev. 2.22

4Concept of operation

In this section 4.1 Concept of operation	4-2
4.1.1 Screen content	4-3
4.1.2 Soft keys	4-5
4.1.3 I : E Ratio soft key	4-6
4.1.4 Timing parameter	4-7
4.1.5 Graphics	4-8
4.1.6 Numerical patient data	4-9
4.1.7 Status information	4-10
4.1.8 ComWheel	4-12
4.1.9 Changing a parameter	4-13
4.1.10 Menu button	4-14
4.1.11 Selecting a menu topic	4-15
4.1.12 Activating a menu function	4-16
4.1.13 Submenus	4-17
4.1.14 Open a submenu	4-19
4.1.15 Change a parameter in a submenu	4-20
4.1.16 Alarm silence	4-22

URM Centiva/5, CM-920041, rev. 2.22

4-1

4 Concept of operation

4.1 Concept of operation

The Centiva/5 is a menu operated and software controlled system. All information for control is provided by the Display.

All controls are located on the front panel, except the On-Off button on the lower front right and the line supply switch on the rear.

The principle for all controls is based on the S A C system.

Select

There are two ways to select a parameter to change, either by soft keys or by menu.

Adjust

The adjustment is always made by turning the ComWheel clockwise for up and counterclockwise for down.

Confirm

Confirmation of the adjusted value for the selected parameter is made by pushing the ComWheel.

Centiva/5

Screen

Bi-Level	Tube : E 7.5 50%	Adult
15		MV-E			12
		5.2Liter2
10		Vt-E350mL
5
					21
		Ppeak
Paw		14cmH2O
cmH2O
40		Pmin		3cmH2O
20
Flow		O2-I	21		25
					%
L/min					18
-20		Rate	18		8	Menu key
-40
					40

1/min

Fi02	Rate	I:E	Ramp	P-Insp	PEEP	PS
21	12	1:2	0.2	10	3	5
%	1/min		sec	cmH2O	cmH2O	cmH2O

ComWheel

Soft keys

I

O

4-2	URM Centiva/5, CM-920041, rev. 2.22