Philips Practix User manual

Mobile radiography

INSTRUCTIONS FOR USE

PRA CTIX 100 plus

Mobile Medical X-ray System

English

Contents

Safety

Electrical safety 4 Mechanical safety 4 Radiation protection 5 Disposal 5 Conformity 5 Copyright 5 Electromagnetic compatibility 6

Legend

General view 7 Possible movements 7 Control desk 8 Collimator 8 Messages on the display 9

Operation

Transport 10 Positioning the unit 11 Switching on the unit 12 In the event of an error message 12 Preparing the tube assembly 13 Overview of operation 14 Program overview 15 Programmed exposure 16 Manual exposure 17 Radiography 18 Terminating operation 19 Parking the unit (in the parking position) 19 Remote control 20

Programming

Saving APR parameters 21

Maintenance

Tests by the user 22 Safety checks according to the Medical Device Directive 22 Repairs 23 Recording results 23 Main fuse 23 Cleaning 24 Disinfection 24

Technical data 25

Appendix

Exposure table 29

Safety

This manual is designed to make it possible for you to work with the X-ray equipment described safely. You may operate the X-ray equipment only in compliance with the safety instructions in this manual and not use it for purposes other than for which it is intended. The X-ray equipment may only be operated by persons who have the necessary expertise in radiation protection or knowledge of radiation protection and who have been instructed in how to operate the X-ray equipment.

In the United States, Federal law restricts this device to sale, distribution, and use by or on the order of a physician.

It is always the user who is responsible for compliance with the regulations applying to installation and operation of X-ray equipment.

• You must never use the X-ray equipment if it has any electrical, mechanical or radiological defects. This particularly applies to faulty indicators, displays, warnings and alarms.

• If the user wishes to connect the X-ray equipment to other equipment, components or assemblies and if it is not apparent from the technical data whether it can be safely combined with such equipment, components or assemblies, the user must ensure that the safety of the patient, operating staff and the environment is not affected by the planned combination by consulting the manufacturers involved or by making enquiries from an expert.

• Philips is responsible for the safety features of its products only if maintenance, repairs and modifications have been performed by Philips or by persons explicitly authorised to do so by Philips.

• As with any technical appliance, this equipment requires not only correct operation but also regular, competent maintenance and care, which are described in the section “Maintenance“.

• If you operate the X-ray equipment incorrectly or if the user fails to have maintenance carried out properly, Philips cannot be held liable for any malfunctions, damage or injuries.

• Safety circuits must be neither removed nor modified.

• You may remove or open parts of the housing only if you are instructed to do so in this manual.

Electrical safety

This X-ray equipment meets the safety class I and type B according to IEC 60601-1.

Only trained maintenance staff may remove the covers from the high-voltage cable of the X-ray tube assembly and the high-voltage generator.

This X-ray equipment may only be operated in medical rooms which meet IEC requirements.

• You must never operate this X-ray equipment in areas where there is a risk of explosion.

• Detergents and disinfectants, including those used on patients, may create explosive mixtures of gases. Please observe the relevant regulations.

Mechanical safety

• Never hold the tube carrier arm to position the tube assembly. There is a risk you may trap your fingers! Use the grip on the tube assembly.

• Only transport the X-ray unit when the tube assembly arm has been locked in the transit position.

Radiation protection

Ensure that before each X-ray exposure all the necessary radiation protection measures have been taken.

When using X-radiation the personnel in the examination room must comply with the valid radiation protection regulations. In this respect please observe the following rules:

• To protect the patient against radiation always use radiation protection accessories in addition to devices which are fitted to the X-ray equipment (e.g. diaphragm, spacer, filter).

•Wear protective clothing. Radiation protection aprons with a lead equivalent of 0.35 mm attenuate X-radiation at 50 kV by 99.84%, and at 100 kV by 91.2%.

• Distance is the most effective radiation protection. Keep as large a distance as possible away from the object exposed and the X-ray tube assembly. Use the full length of the release switch cable.

• Avoid working in the direct beam of radiation.

• Always use the smallest X-ray field collimation. Scattered radiation is largely dependent on the volume of the object being exposed.

• Always select a focal spot to skin distance as long as possible to keep the absorbed dose for the patient as low as could reasonably be possible.

• Always be aware that any material brought into the path of radiation between the patient and the image receptor (e.g. film) will have a negative influence on the image quality as well as on the patient dose.

Philips – supports you in disposing of the X-ray equipment

described in a proper manner

– returns reusable parts to the production cycle via

certified disposal companies and

– thus helps to reduce environmental pollution.

Consequently, do contact your Philips Service Organisation in full confidence.

Conformity

0123

This Medical Device meets the provisions of the Medical Device Directive MDD 93/42 EEC (93).

If you have further questions regarding the applicable national or international standards, please address them to:

Philips Medical Systems DMC GmbH Quality Assurance Department Roentgenstrasse 24 D-22335 Hamburg Fax: (+49) 40/50 78-21 47

This manual is a translation from the German.

Safety circuits which may prevent X-radiation from being switched on under certain conditions may be neither removed nor modified.

Disposal

Philips manufactures state-of-the-art X-ray equipment in terms of safety and environmental protection. Assuming no parts of the system housing are opened and assuming the system is used properly there are no risks to persons or the environment.

To comply with regulations it is necessary to use materials which may be harmful to the environment and therefore have to be disposed of in a proper manner.

For this reason you must not dispose of the X-ray equipment together with industrial or domestic waste.

When receiving data media the user acquires a nonexclusive, non-transferable right to use the software stored on them in connection with the hardware components delivered with it by Philips.

Changes to software, the use of which on hardware components other than those delivered by Philips in this connection (multiple use) or the making of copies, even for purposes of data backup, must be approved by Philips in writing beforehand.

Safety

Electromagnetic compatibility (EMC)

In accordance with its intended use, this electronic apparatus complies with the law governing EMC, which defines the permitted emission levels from electronic equipment and its required immunity against electromagnetic fields.

Nevertheless, it is not possible to exclude with absolute certainty the possibility that radio signals from high-frequency transmitters, e.g. mobile phones or similar mobile radio equipment, which themselves conform to the EMC regulations, may influence the proper functioning of electromedical apparatus if such equipment is operated in close proximity and with relatively high transmitting power. Therefore, operation of such radio equipment in the immediate vicinity of electronically controlled medical apparatus should be avoided to eliminate any risk of interference.

Explanation: Electronic apparatus that satisfies the EMC requirements is designed so that under normal conditions there is no risk of malfunction caused by electromagnetic interference. However, in the case of radio signals from high-frequency transmitters with a relatively high transmitting power, the risk of electromagnetic incompatibility when operated in close proximity to electronic apparatus cannot be totally ruled out.

In unusual circumstances unintended functions of the apparatus could be initiated, possibly giving rise to undesirable risks for the patient or user.

For this reason, all kinds of transmission with mobile radio equipment should be avoided. This also applies when the apparatus is in „standby“ mode.

Mobile telephones must be switched off in designated problem zones.

Legend

General view

1 Tube assembly 2 Angle scales for position of tube

assembly

3 Grip for positioning tube

assembly

4 Collimator with light field

indicator

5 Fixing grip for tube assembly

swivel

6 Tube carrier arm 7 Transportation securing device 8 Handswitch for radiography

9 Equipotential bonding 10 Mains cable with holder 11 Travel joystick

– left: parking position – centre: travel straight ahead – right: parallel travel

12 Travel handle 13 Automatic cutout 14 Generator 15 Cassette compartment 16 Remote control (option) 17 Receiver indicator (LED) 18 X-ray on indicator (LED) 19 Release exposure 20 Switch on light beam lamp

4 3

19 20

Possible movements

Legend

Control desk

1 Display panel

2Switch OFF unit

3Switch ON unit

4 Ready display

“Unit ready for radiation”

5 display

“Radiation ON”

6 Delete messages (or: return to

APR menus)

7 Select APR menu line

8 Change mAs

9 Change kV

10 Activate APR mode

(or: turn menu page)

PRACTIX

100 plus

Ready

– + +

mAs

–

PHILIPS

Reset

11 Switch ON light field lamp

Collimator

1Switch ON light field lamp

2 Open/close diaphragm at right

angles to tube assembly

3 Open/close diaphragm

longitudinally in relation to tube assembly

4 Slot for accessories

5 Rails for accessories

6Tape measure for measuring SID

(Source Image Distance)

Messages on the display

Message

MANUAL

READY

BUSY

CLOCK OFF

POWER FAULT

V3 FAULT

RESET APR

APR OUT OF RANGE

TUBE SEASONING

FILAMENT

HOT TUBE

V2 FAULT

STARTER INTERLOCK

CHOPPER FAULT

TIME OUT

LACK OF X-RAY

MAX TIME

DATA ERR.

MAN STOP RX

INVERTER KV ERR.

INVERTER OVERLOAD

INVERTER FAULT

ERR. TUBE CALIBR.

Meaning

Manual exposure/main menu.

The unit is ready for exposure.

A waiting time starts in order to prevent the X-ray tube assembly from overheating.

Fault in the electronic circuitry (clock generator).

Fault in the electronic circuitry (power supply).

Fault in the electronic circuitry (low voltage V3).

APR program data check.

An APR value is out of range.

After a lengthy operating interval (≥ 3 months) the X-ray tube has to be set in order to prevent damage.

Fault in the electronic circuitry (heating circuit).

The temperature of the X-ray tube has reached its maximum.

Fault in the electr. circuitry (low voltage V2).

Fault in the electr. circuitry (anode starting).

Fault in the electronic circuitry (chopper).

The handswitch has been pressed for longer than 15 s at position 1 (preparation for exposure).

Fault in the electr. circuitry (tube voltage).

Maximum exposure time (2 s) has been reached.

Fault in the electronic circuitry (data storage).

The handswitch has been released before the end of an exposure.

Fault in the electronic circuitry (converter).

Fault in the electronic circuitry (tube setting).

Action

–

Wait for “READY” message.

Press reset button and continue.

Switch OFF, wait a while and try again, otherwise call Customer Service.

Press reset button and continue.

Press “reset“ and set APR value correctly.

Press reset button and continue, then call Customer Service to set X-ray tube.

Switch OFF, wait a while, try again; otherwise call Customer Service.

Press reset button and wait until the X-ray tube has cooled down.

Switch OFF, wait a while, try again; otherwise call Customer Service.

Press reset button and try again.

Let go of handswitch, press reset button and repeat exposure.

Press reset button and try again.

Switch OFF, wait a while, try again; otherwise call Customer Service.

Press reset button, repeat exposure and only let go of handswitch after hearing the signal three times.

Press reset button and try again.

Switch OFF, wait a while, try again; otherwise call Customer Service.

Remark

–

HAND SWITCH ERR.

Dose measuring unit

(option):

INACTIVE

ACTIVE

NOT OK

MAXDOSE

R = error message saved on storage unit for Service Organisation

Fault in the handswitch.

Dosemeter not fitted.

Dosemeter ready.

Dosemeter fitted but faulty.

Dose measurement has reached maximum.

Press “reset“, check cable and connection, try again; otherwise call Customer Service.

–

Press reset button and try again.

Press APR menu 1-button to reset value.

–

Operation

Transport

Please observe the following:

• Before transport – The unit must be switched off – The plug must be removed – The cable must be wound up

(see page 19).

• For transport –Move tube assembly into the

transport position

– Lock the transport securing

device.

To ensure that the transport securing device, with the tube carrier arm in its lowest position, can lock into place:

• Set the knob with the arrow pointing to the red dot (see Fig. 1).

1. Swing tube carrier arm down until the transport securing device locks in place.

2. Set the tube assembly vertical and tighten the fixing grip.

3. To move straight ahead set the travel joystick straight.

To manoeuvre over thresholds you can tilt the unit slightly by pressing on the bar under the generator with your foot.

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