Dürr Dental VistaScan Plus Combi / Ceph / Omni

Transcription

1 Dürr Dental VistaScan Plus Combi / Ceph / Omni Installation and Operating Instructions / /04

2 Contents Important Information 1. General Conformity Acceptance Procedure General Notes Disposal of appliance Notes concerning Medical Appliances MPG Correct Usage Incorrect Usage Using Peripheral Devices Using image plates Using software 6 2. Safety General Safety Notes Electrical Safety Notes 6 3. Warnings and Symbols Model identification plate 7 4. Delivery Contents Special accessories Disposable materials 9 5. System requirements X-ray cassettes Monitor Minimum system requirements Technical Data VistaScan Image plate Functional Diagram Function of individual components Functional Description /04

3 Installation 9. Transport and packing Carrying the VistaScan Set-up Room for Set-up Set-up alternatives Installation of the light baffle plate* Electrical Connections Commissioning Connect the VistaScan to the PC Configuration ad Testing settings on X-ray appliance Commissioning and Constancy Checks * 19 Trouble-shooting 20. Tips for Operators and Service Technician 32 Appendix 21. Image processing times Intraoral Extraoral OPG Extraoral Ceph File sizes (uncompressed) Intraoral Extraoral OPG Extraoral Ceph 37 Use of the Appliance 14. Image plate General Working with image plates Storing image plates Foil cassettes Intraoral foil cassette Extraoral foil cassette Light protection covers Intraoral X-ray Preparing to X-ray X-ray exposures Preparing to scan image data Scanning the image data Erasing the image data Panorama and Ceph-X-rays Preparing to X-ray X-ray exposures Scanning the image data Erasing the image data Disinfection and Cleaning Light protection covers Image plates Foil cassettes VistaScan /04 3

4 1. General Important Information 1.1 Conformity Acceptance Procedure This product was tested for conformity to the Guidelines 93/42/EWG of the European Union and has been found to satisfy all criteria of these guidelines. 1.2 General Notes These Installation and Operating Instructions form an integral part of the unit. They must be kept close to the unit at all times. Precise observance of these instructions is a pre-condition for use of the unit for the intended purpose and for its correct operation. New personnel must be made aware of the contents, and they should be passed on to future operating staff. Safety for the operator as well as trouble-free operation of the unit are only ensured if use is made of Original Equipment Manufactured parts. Furthermore, only those accessories explicitly stated in the Installation and Operating Instructions or recommended by Dürr Dental may be used. If other accessories are used, then Dürr Dental can no longer guarantee safe operation or smooth functioning of the appliance. Any claims concerning damage that arise from the use of other accessories are inadmissible. Dürr Dental are only responsible for the equipment with regard to safety, reliability and proper functioning where assembly, resettings, changes or modifications, extensions and repairs have been carried out by Dürr Dental or an agency authorized by Dürr Dental and if the equipment is used in conformity with the Installation and Operating Instructions. These Installation and Operating Instructions conform to the relevant version of the equipment and the underlying safety standards valid at the time of going to press. All switches, processes, trade marks, software programs and appliances named in this document are registered names. This translation of the Installation and Operating Instructions has been carried out in good faith. The manufacturer bears no liabilities in the case of a mistake in the translation. The enclosed German version of the Installation and Operating Instructions is the original; in the case of any confusion please consult your dealer or our hotline service. Any reprinting of the technical documentation, in whole or in part, is subject to prior approval of Dürr Dental being given in writing. Retain the packaging for possible return of the product to the manufacturers. Ensure that the packaging is kept out of the reach of children. Only the original packaging provides adequate protection during transport of the unit. Should return of the product to the manufacturers be necessary during the guarantee period, Dürr Dental accepts no responsibility for damage occurring during transport where the original packaging was not used! 1.3 Disposal of appliance appliance The EU-guidelines 2002/96/EG - WEEE (Waste Electric and Electronic Equipment) of 27th January 2003 and the current integration into national law states that dental products come under the above-mentioned guidelines and, within the European Union, are subject to special disposal measures. If you have any questions concerning disposal of the product, please contact Dürr Dental or your specialist dental supplier. image plate When disposing of image plates observe local and regional rules and regulations /04

5 1.4 Notes concerning Medical Appliances MPG This product is a technical medical appliance and, as such, may only be operated by trained personnel, or persons who, as a result of specialist knowledge, are familiar with this type of appliance. Do not lie multi-socket units on the floor. Observe standard when using multi-socket units. Other systems should not be plugged into the same multi-socket unit. 1.5 Correct Usage VistaScan has been designed solely for optical scanning and processing of image plate information. This appliance is not suitable for monitoring patients over longer periods of time. Correct Usage of the appliance also involves observing the Installation and Operating Instructions and adhering to those instructions concerning set-up, operating and maintenance. Every usage which is not in accordance with the Correct Usage above will lead to the guarantees and warranties of Dürr Dental becoming null and void. The operator is liable for any damage arising through incorrect usage. Correct Usage also involves observing all local and national regulations concerning health and safety at work and radiation prevention. 1.6 Incorrect Usage Any usage above and beyond that described here is to be considered as incorrect usage of the appliance. The manufacturer is not liable for any damages arising from incorrect usage. The operator bears all risks and liabilities. This appliance must not be used in operating theatres or similar types of room, where there is a risk of inflammable materials catching fire. 1.7 Using Peripheral Devices Only peripheral devices (computer, monitor, printer) may be connected to this appliance which conform to standard IEC ( 60950/1). Thie computer must be out of the vicinity of the patients according to IEC ( ). If for any reason this is not possible then the computer set up must be installed according to the requirements laid down under IEC ( ). The system combination must conform to the requirements of IEC ( Units may only be connected to the system or to other units when it has been established that there is no reduction of safety for the patient, the operator or the environment through such connection. Where it is not absolutely clear from the documentation whether safety is reduced by such connection, then the operator must establish, e.g. by contacting either the manufacturer or an expert, that there is no reduction of safety for the patient, the operator or the environment through such connection. 2007/04 5

6 1.8 Using image plates VistaScan Plus may only be used in combination with Dürr Dental image plates PLUS. See section 14. Image Plates 1.9 Using software Only use x-ray software specifically approved by Dürr Dental, such as DBSWIN V4. Further information can be found on the internet under Operating systems such as Windows 2000 Professional from Service Pack 4 and Windows XP Professional / Home from Service Pack 2 are supported. 2. Safety 2.1 General Safety Notes This appliance has been designed and constructed by Dürr Dental so that correct usage of the appliance is virtually free of any possible injury or danger. In spite of this, we feel it is our duty to mention the following safety measures in order to prevent any possible danger. When using this appliance all local and relevant regulations must be observed! Converting or modifying the appliance in any way is strictly prohibited. In such cases, any and all guarantees immediately become invalid. The operation of modified appliances can be punishable by law. In the interests of trouble-free operation the operator is responsible for observing these regulations. Before every use the operator must check the functional safety and the condition of the appliance. The operator must be knowledgeable in the operation of the appliance. The product is not designed to be used in medical treatment areas where there exists the danger of explosion. Areas where explosions could occur are those where flammable anesthetic material, skin cleansers, oxygen and skin disinfectants are present. This appliance is not to be used in areas where the atmosphere could cause fire. 2.2 Electrical Safety Notes The appliance may only be connected to a correctly installed earthed safety socket. Before connecting the appliance to the power supply check that the electrical current and the frequency of the device as described on the appliance are compatible with that of the power supply. Check the appliance and the power supply cables for possible damage before switching on. Damaged cables, plugs and sockets must be replaced before use. Never touch open supply outlets and patients simultaneously. When working on the appliance observe all electrical safety procedures and regulations. Before opening the appliance unplug at the mains and remove all power /04

7 3. Warnings and Symbols In the Installation and Operating Instructions use is made of the following terms or symbols to denote information of special importance: Information and/or mandatory regulations or prohibitions for the prevention of personal injury or substantial property damage Special information regarding the economical use of the equipment and other information Unplug at the mains and remove all power On/Off button Operational LED, green Operational LED, yellow 3.1 Model identification plate The model identification plate can be found on the rear side of the VistaScan Plus. The following information can be found on the model identification plate and on the VistaScan Plus itself: Warning Laser Warning dangerous voltage. Laser class 1 Date of manufacture Observe accompanying documentation Dispose of correctly according to EUguidelines (2002/96/EG - WEEE) Only use once (disposable) Wear protective gloves IP20 REF SN Fuse type Reference number Serial number Date of manufacture 2007/04 7

8 4. Delivery Contents Dürr VistaScan Plus Combi VistaScan Power unit Wall mounting bracket Data cable (EPP 3m) Data cable (USB 3m) DBSWIN Standard Dürr image plates Plus -Size 0-2x3 (22x35 mm) Dürr image plates Plus -Size 2-3x4 (31x41 mm) foil cassette -Size 0-2x foil cassettes -Size 2-3x Holding tray for foil cassette -Size Light protection covers -Size 0-2x3 (100 pieces) Light protection covers -Size 2-3x4 (300 pieces) Lead letters Installation and Operating Instructions /30 Depending on country of operation: Mains cable (EU) Mains cable (CH) Mains cable (DK) Mains cable (GB) Mains cable (AUS) Mains cable (J) Dürr VistaScan Plus Ceph VistaScan Power unit Wall mounting bracket Data cable (EPP 3m) Data cable (USB 3m) DBSWIN Standard Dürr image plate * -Ceph- 18x24 (178x227 mm) Lead letters Installation and Operating Instructions /30 Depending on country of operation: Mains cable (EU) Mains cable (CH) Mains cable (DK) Mains cable (GB) Mains cable (AUS) Mains cable (J) Dürr VistaScan Plus Omni VistaScan Power unit Wall mounting bracket Data cable (EPP 3m) Data cable (USB 3m) DBSWIN Standard Lead letters Installation and Operating Instructions /30 Depending on country of operation: Mains cable (EU) Mains cable (CH) Mains cable (DK) Mains cable (GB) Mains cable (AUS) Mains cable (J) /04

9 4.1 Special accessories The following parts, depending on model chosen, are not supplied with the contents of delivery. Please order as required! Test body Intra - Extra Digital Test body retainer for Sirona / Siemens Orthophos and Planmeca PM 2002 EC / CC Panorama units Test body retainer for Gendex, Philips, Soredex Panorama units Secondary absorber for Panorama units Cleaning set for image plates and foil cassettes Dürr image plates Plus -Size 0-2x3 (22x35 mm) Dürr image plates Plus -Size 1-2x4 (24x40 mm) Dürr image plates Plus -Size 2-3x4 (31x41 mm) Dürr image plates Plus -Size 3-2.7x Dürr image plate Plus -Size 4-5.7x Dürr image plate * -OPG- 12.7x30.5 (125x286 mm) Dürr image plate * -OPG- 15x30 (148x298 mm) Dürr image plate * -Ceph- 18x24 (178x227 mm) Dürr image plate * -Ceph- 24x30 (238x298 mm) Dürr image plate * -Ceph- 20x24 8x10 Inch (202x241 mm) Dürr image plate * -Ceph- 13x18 (127x177 mm) Holding tray for foil cassette -Size foil cassette -Size 0-2x foil cassette -Size 1-2x foil cassette -Size 2-3x foil cassette -Size 3-2.7x foil cassette -Size 4-5.7x foil cassette -OPG- 12.7x foil cassette -OPG- 15x foil cassette -Ceph- 18x foil cassette -Ceph- 24x foil cassette -Ceph- 20x foil cassette -Ceph- 13x Light protection baffle for VistaScan Plus Omni X-ray cassette without reinforced foil, straight Format 12.7x Format 15x Format 18x Data cable (EPP 5m) * inc. one foil cassette 4.2 Disposable materials FD 350 Disinfectant wipes CDF350C0140 FD 333 Quick-acting disinfectantcdf333c6150 FD 322 Quick-acting disinfectantcdf333c6150 Light protection covers -Size 0-2x3 (100 pieces) Light protection covers -Size 1-2x4 (100 pieces) Light protection covers -Size 2-3x4 (300 pieces) Light protection covers -Size x5.4 (100 pieces) Light protection covers -Size 4-5.7x7.6 (100 pieces) /04 9

10 5. System requirements To operate VistaScan the following components are required. These are not included with the standard Delivery Contents supplied with VistaScan. 5.1 X-ray cassettes Extra-oral exposures require X-ray cassettes without reinforcing foil. These are available as accessories for most X-ray appliances. For X-ray cassettes with reinforcing foil this must be removed. 5.2 Monitor Monitors designed for digital x-ray processes with a higher light intensity and broad contrast range should be used. Strong room lighting, direct sunlight and reflections all serve to reduce the diagnostic capabilities of the X-ray exposures. See also the accompanying system documentation. 5.3 Minimum system requirements See the enclosed information sheet order number / /04

11 6. Technical Data 6.1 VistaScan Electrical Details power unit Voltage (V) Maximum fluctuation in rated current+/- 10% Frequency (Hz) Current (A) max. 2 Current consumption (W) 120 Fuse type IP20 Protection class I Overvoltage category II Electrical ratings and connection data Vista Scan Voltage (V, DC) 24 +/- 10% Frequency DC Current (A) max. 5 Current consumption (W) <120 Dimensions VistaScan Plus Combi W = 38cm, H = 61cm, D = 38cm VistaScan Plus Ceph W = 38cm, H = 61cm, D = 38cm VistaScan Plus Omni W = 38cm, H = 72cm, D = 38cm Input slot for image plate (cm) max. 30 Temperature ranges Appliance in operation ( C) +10 to +35 Storage and transport ( C) -20 to +60 Relative humidity Appliance in operation (%) Storage and transport (%) Weight VistaScan Plus Combi (kg) ca. 24 VistaScan Plus Combi (kg) ca. 24 VistaScan Plus Combi (kg) ca. 25 General values Medical appliance category 1 Laser protection class 1 ( ) Wavelength λ 635 nm 10 mw1) or 15 mw1) : A1: A2: ) appropriate for installed laser performance Max. noise level (db(a)) <60 Heat radiation (W) <140 Pixel size can be selected from range 12.5µm to 130µm Resolution depending on image plate, max. ca. 40 line pairs/mm (Lp/ mm). 6.2 Image plate Storage and transport Temperature ( C) <33 Relative humidity (%) <80 Use of the Appliance Temperature ( C) Relative humidity (%) <80 Ambient air pressure Appliance in operation (%) Operational altitude (m) <2000 Storage and transport (%) Operational altitude (m) < /04 11

12 7. Functional Diagram a 7 1b 2 6a 6b c /04

13 7.1 Function of individual components 1a.Image plate (extraoral): The image plate serves as the exposure medium for X-rays and stores the image data. 1a.Image plate (intraoral): (as section 1a) 2.Light protection cover (Intraoral): Light protection covers protect the patient from infection by contaminated image plates. Reduces the risk of damage to the image plate in the patient's mouth. Protects the image plate from contamination and dirt. Prevent image data on the image plate from being erased. 3.Foil cassette (extraoral): Prevent image data on the image plate from being erased. The image plate is slid into the extraoral foil cassette and then placed together into the X-ray unit. The image plate together with the foil cassette is positioned in the entry slot of the transport drum and thus into the VistaScan. 4.Holder for foil cassettte Foil cassettes not currently being used can be placed in the special holder. 5.Wall mounting bracket: The VistaScan Plus can be inserted into the wall mounting bracket when not in use. 6.Foil cassette (Intraoral): Prevent image data on the image plate from being erased. The image plate together with the foil cassette is positioned in the entry slot of the transport drum and thus into the VistaScan. 6.a Foil cassette sizes: The numbering, e.g. "2" denotes the size of the image plate which must be used with a particular foil cassette. 6.b Lever: The lever is used to slide the image plate out of the foil cassette and into the VistaScan. 6.c Tab: The tongue situated on the lever helps to push the image plate from the foil cassette and into the VistaScan. 7.Collector tray: After scanning and erasure of data the image plates fall into a special collector tray. 8.Erasure unit: After scanning any data on the image plate is automatically deleted in the erasure unit. 9.Transport drum: The transport drum contains the complete transport mechanism, as well as the scanning unit and the erasure unit. 10.Green LED: VistaScan is Ready 11.Status LED: The LEDs show whether an image plate can be inserted for scanning. Green LED: An image plate can be inserted. Yellow LED: Do not insert an image plate yet. 12.Entry slot: The entry slot is inserted into the VistaScan through the entry slot and is automatically detected and picked up by the transport mechanism. 13.Yellow LED: LED lights: VistaScan is switched on, but not yet initialised. LED blinks: No connection to PC. Memory full. 14.On / Off key: Press the key for 2 seconds to switch off or on. 2007/04 13

14 8. Functional Description The VistaScan is used to transfer the data present on an image plate into a digital exposure. image plate Photomultiplier laser source IIntraoral X-ray: The intraoral image plate (1) is placed inside the disinfected light protection cover (2), placed into the patient's mouth and exposed. After exposure the light protection cover is disinfected and the image plate is removed and slid into a foil cassette (6) of the appropriate size. Extraoral X-ray: The extraoral image plate (1a) is placed into the appropriate foil cassette (3). The foil cassette is then inserted into the X-ray cassette, placed in the X-ray appliance and exposed. Scanning the image data Pressing the on-off button (14) switches on the VistaScan. Then the image data editing and the archive software, e.g. DBSWIN from V 4, of the scanning mode is activated. Finally the foil cassette (3 or 6) together with the extraoral or Intraoral image plate is positioned at the entry slot (12) of the transport drum (9) and, when inserted fully, correctly aligned. When the LEDs (11) are green, then the image plate can be inserted into the entry slot (12). For extraoral formats this is carried out by carefully pressing with one's thumb in the foil cassette itself and for intraoral formats by pulling down the lever (6b). parabolic mirror reflection layer prism rotating disc The image plate is then automatically drawn into the transport drum by the transport mechanism. Within the transport drum the image plate is passed through the scanning unit where the image data is scanned and the data transmitted to the PC. A window on the monitor shows the progress of this procedure. If more than one image plate is being scanned simultaneously then this will take place at the same resolution. After the scanning procedure is completed the image plate passes to the erasure unit (8). Image data still held on the image plate will be erased. After all stages have been completed the image plate falls into a collector tray (7). It can now be extracted and prepared for the next x-ray exposure. If used carefully it is possible to reuse the image plates several hundred times. Before reuse the image plates should be checked for signs of dirt or damage. Damaged image plates must not be reused /04

15 Installation Only suitably qualified personnel are permitted to set up, to install or to operate the appliance Transport and packing Check that the delivery contents are complete and check for any signs of transport damage. Empty the packing completely and store in a dry place. Do not expose the VistaScan to any strong shocks which could damage the appliance. Only use the original packing cases for shipping. 10. Carrying the VistaScan Always carry the VistaScan by holding the housing by the rear side (fig. 1). Never carry the VistaScan by the exit area or by its cover, as this could lead to sensitive parts of the VistaScan from becoming damaged. (Figs. 2 and 3) /04 15

16 11. Set-up 11.1 Room for Set-up The VistaScan should be set up in a closed, dry and well-ventilated room. The room temperature should not fall below + 10 C or exceed + 35 C. Danger of short circuit due to build up of condensation. The system can only be put into operation once the appliance has warmed up to room temperature and it is dry. 4 Installation in a purpose-built room, e.g. in a boiler room or in a wet room is not permitted. Do not expose the VistaScan to direct sunlight. It may be necessary to reduce the amount of light within the room. The maximum light intensity is 1000 Lux. There must be no source of interference in the room for set-up (e.g. strong magnetic field). These could lead to interference of the VistaScan Set-up alternatives Wall mounting The VistaScan can be mounted onto a wall by using the special wall mounting bracket (5). The wall mounting bracket (5) is supplied without any mounting fittings or other material. Safe fixing should be carried out by a qualified person. The mounting fixture used must be able to support a weight 4-times higher than the actual weight of the VistaScan. The 4 bore holes in the Wandhalterung have a diameter of Ø 7 mm. Mount the wall mounting bracket to the wall Place the distance spacing screws (15) into the thread on the rear side of the mounting plate /04

17 Place the VistaScan into the wall mounting. Rotate the distance screws (15) until the VistaScan is horizontal. 7 Table Set-up VistaScan can just as well be mounted on a table. In order to avoid problems when scanning the image data, the VistaScan should be set up so that will not be subject to knocks, vibration or similar Installation of the light baffle plate* The light baffle plate reduces the amount of stray light that can possibly enter the unit through the entry slot of the VistaScan (see 4.1 Special accessories). 2 Remove the cover by undoing the 2 screws. Place the light baffle plate into position and tighten the screws. *Only for VistaScan Plus Omni, order number /04 17

18 12. Electrical Connections Before commissioning or first use check that the values of the supply voltage and the power supply voltage agree with values given on the model identification plate: 24 V DC and V respectively. The connection ports are in the recesses on the rear side of the apertures. 10 Connect the mains cable to the appliance power unit and to the mains supply. Connect the power cable to the socket on the VistaScan. Place the power cable into the power outlet socket. 13. Commissioning 13.1 Connect the VistaScan to the PC Connection to LPT-Port Use the data cable supplied to connect the parallel port on the PC and the parallel interface of the VistaScan. Set the parallel interface setting of BIOS- Setup to EPP-Mode (IEEE 1284). If a printer is being used that requires a parallel interface connection then this should be connected to the free parallel port on the VistaScan. Any outstanding printing tasks will be interrupted during operation of the VistaScan. Connection to USB-Port Connect the USB cable provided with the USB-interface of the PC and the USBinterface of the VistaScan Configuration ad Testing Carry out configuration and a system test according to the Operating Instructions enclosed, order number / /04

19 13.3 settings on X-ray appliance The following values are standard values and must be checked for each appliance and adjusted when and if needed. Intraoral X-ray appliance Parameter DC-beamer, 8mA, tube length 20cm recommended exposure time (s) DC-beamer, 8mA, tube length 40cm recommended exposure time (s) upper jaw 60kV 70kV 60kV 70kV incisors pre-molars molars lower jaw 60kV 70kV 60kV 70kV incisors pre-molars molars Reference conditions: Adult patient Extraoral X-ray appliance Most extraoral X-ray appliances can be operated using the same settings as for analog films. However, fot some makes or models there may be slight deviations. In this event the VistaScan and the X-ray appliance must be set as to be compatible. The sensitivity of the VistaScan has been optimised for film-foil system of the class 200. Where X-ray appliances of another sensitivity class are being used then the sensitivity of the VistaScan can be adjusted and brought into line using the HV-settings Commissioning and Constancy Checks * Before the appliance can be used the first time a handover test (commissioning test) of the X-ray system must be carried out according to national and local regulations. The test body Intra / Extra (order number ) is required for testing. The Constancy Check of the X-ray system must be carried out by surgery staff at frequent intervals. The Constancy Check is based on those results obtained during the handover test. * observe all rules and regulations! 2007/04 19

20 Use of the Appliance 14. Image plate Image plates are toxic: For this reason they must always be placed in a light protection cover before putting this in the mouth of the patient. In the case of a patient swallowing an image plate or a part of one then a doctor must be consulted immediately and the image plate removed. If a patient damages a light protection cover when biting on it, then the mouth must be rinsed out thoroughly with copious amounts of water. 11 active side: inactive side: inactive side: 14.1 General VistaScan should only be used in combination with PLUS image plates from Dürr Dental. The use of image plates from other manufacturers could result in poorer image quality. Exposure of the image plate must always be carried out on the active side: Intraoral image plates active side: the active side is light blue. This side is also marked with a positioning guide. inactive side: the inactive side is black. This side bears size markings and information regarding the manufacturer. extraoral image plates active side: the active side is light blue. inactive side: the inactive side is black. This side bears size markings and information regarding the manufacturer. The upper surface has a slight "rough structure". This structure makes insertion of the image plate into the VistaScan easier. 12 active side: /04

21 14.2 Working with image plates Image plates must be visibly checked for signs of damage. Damaged image plates (e.g. a torn outer layer, or visible scratches, which will affect the diagnostic assessment) must be replaced. image plates are flexible like X-ray film. do not bend or subject to pressure. do not scratch or get dirty. do not put in an autoclave Storing image plates store image plates in a dark place. do not store in hot or moist conditions. store intraoral image plates in a light protection cover of the appropriate size. extraoral image plates should be stored in the appropriate foil cassette. if an image plate is stored for longer than 24 hours, then it should be erased again before the next X-ray exposure. protect from direct sunlight and ultraviolet beams. if stored in the X-ray room itself then the image plates must be protected from pre-exposure caused by X-ray radiation /04 21

22 15. Foil cassettes 6b Prevent image data on the image plate from being erased. the image plate together with the foil cassette is positioned at the entry slot of the transport drum. the foil cassette enables the image plate to be fed into the VistaScan. Do not autoclave the foil cassette 15 6 c 15.1 Intraoral foil cassette 66The tongue situated on the lever helps to push the image plate from the foil cassette and into the VistaScan. Do not remove this tongue! 15.2 Extraoral foil cassette The image plate is slid into the extraoral foil cassette and then placed together into the X-ray unit. 16. Light protection covers 16 light protection covers protect the patient from infection by contaminated image plates. protect the image plate from contamination and dirt. protect the image plates from stray light. the light protection cover is available in different sizes just like image plates. Select the correct size. The light protection cover is a disposable article and must not be reused /04

23 Intraoral X-ray Observe the notes on hygiene regulations under section 18. Cleaning and Disinfection Preparing to X-ray Image plates can be prematurely exposed by natural X-ray radiation and X-ray stray radiation. The image plate should be erased before using it for the first time or after storage of more than 24 hours. See section Slide the image plate completely into the light protection cover. The black (inactive) side of the image plate must be visible. Peel off the white sticky strip and press firmly to close the opening of the light protection cover. The light protection cover is a disposable article and must not be reused. The light protection cover must be disinfected using a disinfectant wipe before positioning inside the patient's mouth (e.g. with Dürr FD 350). Alternatively, use a disinfectant spray (e.g. Dürr FD 322, FD 333) on a soft, fluff-free cloth instead of a disinfectant wipe /04 23

24 17.2 X-ray exposures Danger of infection! Wear protective gloves when placing image plates into the patient's mouth. 21 The image plates are marked with a symbol. The symbol is visible in the X-ray exposure, and makes orientation during diagnosis easier. The image plate should be placed in the mouth so that the symbol will not affect the diagnostic usefulness of the X-ray exposure. Place the image plate inside the light protection cover as normal into the patient's mouth. The active side of the image plate must point in the direction of the X-ray tube. Damage to the image plate: Only use handling techniques which will not cause damage to either the light protection cover or the image plate. Handling systems with sharp edges should be avoided. Set exposure time and settings on the X-ray appliance. Produce an X-ray exposure. The image data present on the image plate must be processed and scanned within 30 minutes of exposure /04

25 Preparing to scan image data Danger of infection! Wear protective gloves when removing image plates from the patient's mouth. Remove the image plate inside its light protection cover from the patient's mouth. If the light protection cover or the gloves are considerably dirty, e.g. from blood, then before disinfection the cover must be given a quick dry clean, e.g. by wiping with a clean piece of lint. Clean and disinfect the light protection cover and the gloves with a disinfectant wipe (e.g. Dürr FD 350). Alternatively, use a disinfectant spray (e.g. Dürr FD 322, FD 333) on a soft, fluff-free cloth instead of a disinfectant wipe. Lay the image plate down in the light protection cover in the disinfectant wipe. Take off the protective gloves, disinfect the hands (e.g. with Dürr HD 410) and clean (e.g. with Dürr HD 430, HD 435). Damage to the VistaScan: Before handling the image plate hands should be entirely free of any powder residue from the protective gloves. This powder can damage the optical scanning unit of VistaScan Plus during the scanning procedure of the image plate. Contamination of the VistaScan: Before scanning the image plate data, it must be clean and hygienically in good condition. Otherwise there could be a loss of image data or even to the transfer of bacteria. Now tear the light protection cover open along the adhesive strip (V-indent). Choose a foil cassette of the correct size /04 25

26 26 Slide the lever on the foil cassette downwards until it engages. The tongue must be completely visible. Place the image plate within its light protection cover onto this tongue. Slide the image plate out of the light protection cover and immediately into the foil cassette until it is firmly in position. The active side must be turned away and the inactive side upwards (visible). Loss of image data: Image data held on the image plate will be lost on exposure to light. Exposed image plates should never be handled without either a light protection cover or a foil cassette Scanning the image data The VistaScan can scan up to 4 intraoral image plates at the same resolution simultaneously. Switch on VistaScan at On - Off switch (14). Switch on PC and monitor Example using image processing software Dürr DBSWIN 4 Further information on recording pictures, storage and editing can be found in the handbook to DBSWIN under Menu [Help], [Contents]. Start DBSWIN. Choose the desired patient from the Patient Data Sheets. Choose the correct exposure values from the X-ray module. Set desired resolution. Click option "Scan". Status LED is green: Place a foil cassette waith an image plate into one of the free entry slots on the transport drum until it engages. Slide the lever as far as necessary until the point where the image plate is automatically drawn into the unit. During scanning the status LED at the entry slot will light up yellow /04

27 Loss of image data: The foil cassette can only be removed from the transport drum once all the 4 status LEDs are green and the image plate has dropped into the collector tray. The images will automatically be transmitted to the software. Scanner progress can be monitored on a small inner window on the PC screen. The X-ray exposure will be saved in DBSWIN Erasing the image data After scanning the cassette proceeds to erasure. Image data still held on the image plate will be erased. After all stages have been completed the image plate falls into a collector tray. It can now be removed. Prepare the image plates for further X-rays. Special mode "Erase INTRA" The image plate must be erased again if: the image plate has been stored and not used for longer than 24 hours. the image data on the image plate has not been completely erased due to a fault in the VistaScan Plus. (Error message from software) The special mode activates the erasure unit of the VistaScan Plus. No image data will be transmitted to the software. 30 To erase again: Place a foil cassette waith an image plate into one of the free entry slots on the transport drum until it engages. Select the special mode "Erase INTRA" in the software. Scan the image plate as under section /04 27

28 Panorama and Ceph-X-rays Only use X-ray cassettes with no reinforcing foil. Using X-ray cassettes with reinforcing foil will lead to inferior image quality. Remove any reinforcing foil completely from the X-ray cassettes Preparing to X-ray Image plates can be prematurely exposed by natural X-ray radiation and X-ray stray radiation. The image plate should be erased before using it for the first time or after storage of more than 24 hours. See section Slide the previously erased image plate into the flexible foil cassette. The black side of the image plate must be visible. Place the foil cassette in the X-ray cassette. The foam rubber side of the foil cassette must point in the direction of the cover of the X-ray cassette. ( Fig. 33) The correct position of the image plate (left or right side) can be marked by using the lead letters supplied, order number X-ray exposures Place the X-ray cassette into the Panorama / remote X-ray unit. The active side of the image plate must face the X-ray tube. Set exposure time and settings on the X-ray appliance. Expose the image plate Possible loss of image data: Any image data on the image plate must be scanned within half an hour of exposure by the VistaScan! 18.3 Scanning the image data Switch on VistaScan at On - Off switch (14). Switch on PC and monitor. Example using image processing software Dürr DBSWIN 4 Further information on recording pictures, storage and editing can be found in the handbook to DBSWIN under Menu [Help], [Contents]. Start DBSWIN. Choose the desired patient from the Patient Data Sheets. Choose the correct exposure values from the X-ray module. Select the required scanning mode. Click option "Scan" /04

29 Status LED is green: Remove the foil cassette from the X-ray cassette. Position the foil cassette at the entry slot of the transport drum. Place your fingers onto the printed surface of the image plate. Gently slide the image plate evenly until it begins to be drawn into the unit automatically. During scanning the status LEDs at the entry slot will light up yellow. Loss of image data: The foil cassette can only be removed from the transport drum once all the 4 status LEDs are green and the image plate has dropped into the collector tray. The images will automatically be transmitted to the software. Scanner progress can be monitored on a small inner window on the PC screen. The X-ray exposure will be saved in DBSWIN Erasing the image data After scanning the cassette proceeds to erasure. Image data still held on the image plate will be erased. After all stages have been completed the image plate falls into a collector tray. It can now be removed. Prepare the image plates for further X-rays. Special mode "Erase EXTRA" The image plate must be erased again if: the image plate has been stored and not used for longer than 24 hours. the image data on the image plate has not been completely erased due to a fault in the VistaScan Plus. (Error message from software) The special mode activates the erasure unit of the VistaScan Plus. No image data will be transmitted to the software. To erase again: Place a foil cassette waith an image plate into one of the free entry slots on the transport drum until it engages. Select the special mode "Erase EXTRA" in the software. Scan the image plate as under section /04 29

30 19. Disinfection and Cleaning Only use disinfection and cleaning agents specifically approved or manufactured by Dürr Dental. Other cleaning and disinfectant agents could cause damage to the VistaScan Light protection covers The light protection cover must be disinfected using a disinfectant wipe before positioning inside the patient's mouth and after extraction (e.g. with Dürr FD 350). Alternatively, use a disinfectant spray (e.g. Dürr FD 322, FD 333) on a soft, fluff-free cloth instead of a disinfectant wipe. Observe the active working time of the solution carefully. The fluids must be completely dried Image plates Damage to image plate: Do not autoclave image plates! Disinfectant baths will destroy image plates! We strongly recommend the usage of our cleaning set for image plates and foil cassette, order number Dirt on either side should be cleaned off using a soft non-fluffy cloth. Remaining dirt can be removed with a special cleaning agent from the cleaning set and by applying a circular wiping motion. Before reusage, the image plate must be completely dry /04

31 19.3 Foil cassettes Damage to cassettes: Do not autoclave the foil cassette Visible dirt must be removed before the foil cassette is used again! 38 Intraoral Disinfection should be carried out with disinfectant wipes (e.g. Dürr FD 350) or alternatively using disinfectant spray (e.g. Dürr FD 322, or FD 333) on a soft, lintfree cloth. Alternatively the foil cassettes can be immersed in a bath containing a non-aggressive disinfectant (e.g. Dürr ID 212 forte). Before reusage, the cassette must be completely dry. Extraoral Disinfection should be carried out with disinfectant wipes (e.g. Dürr FD 350) or alternatively using disinfectant spray (e.g. Dürr FD 322, or FD 333) on a soft, lintfree cloth. Dirt should be removed by using a gentle circular wiping motion. Before reusage, the cassette must be completely dry VistaScan Damage to the VistaScan: Do not spray the VistaScan with a disinfection solution! No kind of fluids must be allowed to get into the inside workings of the appliance. This could lead to damage to the appliance! The surface of the VistaScan can be cleaned using a damp cloth, and disinfected using a non-aggressive disinfectant wipe, e.g. Dürr FD 350. Remove any signs of dirt at the entry and exit slots of the scanner /04 31

32 Trouble-shooting 20. Tips for Operators and Service Technician Repairs may only be carried out by suitably qualified personnel or our own service technicians. Problem Possible cause Solution 1. Scanner does not No supply voltage Check the mains cable and all switch on connections Check the main fuse box to building Check the power unit, whether green LED lights 2. Scanner switches off after a short time 3. Status, error or operation LED does not light up 4. Loud noises during operation after switching on 5. The imaging software does not recognise the scanner 6. Problem on data transmission between scanner and PC. Error message: "CRC error ""Timeout" On/Off switch is defective Mains cable or one of the plugs has not been inserted correctly Hardware defective Mains supply voltage too low LED defective If the noises persist longer than 30 seconds, then the beam baffle is defective Scanner nt switched on Connection cable between scanner and PC is loose PC does not recognise connection to scanner Hardware error of scanner Connection cable of wrong type or too long Inform your Service Technician Check the mains cable and all connections Inform your Service Technician Check the supply voltage Inform your Service Technician Inform your Service Technician Switch on scanner Check all connection cables Check that the LPT interface is EPP compatible according to IEEE 1284 Bios must be set to EPP USB-driver not installed or inactive Inform your Service Technician Only use original "Dürr Cable" order number /04

33 Problem Possible cause Solution 7. Image plate is not film cassette not correctly inserted Place the film cassette correctly drawn into the appliance via trans- Transport mechanism activated - Pull the lever the whole way down film cassette lever has not been until the image plate is drawn in. port arc pulled down sufficiently 8. X-ray exposure does not appear on the monitor after scanning 9. X-ray exposure is too dark 10. Intraoral image appears on the monitor at an angle Transport mechanism activated - VistaScan may not be on stand-by Image plate was inserted upside down and the inactive side scanned Image data on the image plate has been erased, e.g. by ambient light Problem with the hardware X-ray device is faulty No image information on the image plate X-ray exposure is overexposed The image plate was exposed to too much light before insertion into the film cassette The image plate was scanned without the film cassette Incorrect size of film cassette was used See section 17.4 Scanning and Erasure of image data (intraoral), or section 18.4 Scanning and Erasure of image data (extraoral) Rescan the image plate as quickly as possible The image data collected on the image plate must be scanned as soon as possible after removal from the light protection sleeve or the film cassette Inform your Service Technician Inform your Service Technician Expose the image plate Set the brightness of the X-ray image using the software Insertion must be carried out within 30 seconds under ambient light conditions of under ca. 20 Lux. The image plates must always be placed in a film cassette before insertion Use a film cassette of the correct size 2007/04 33

34 Problem Possible cause Solution 11.Image presented as mirror image The image plate was placed in cassette or in the mouth of the patient the wrong way round Incorrect parameters chosen Place and align the image plate correctly Choose the correct parameter settings 12. Ghost images and shadows on the X-ray exposure 13. Image is very faint on the scanning window software cannot piece the data together to form a complete picture 14. X-ray exposure has stripes on image Error message from software. Image plate data insufficiently erased. The X-ray dose used for the image plate was too low Amplification level too low (HV-value) Unsuitable scanning mode used Threshold setting too high Image plate has been exposed Part of the image plate was exposed to light during handling Image plate was dirty or scratched Check the erasure unit function If this happens again call the Service Technician Increase the X-ray dosage Increase the amplification (HV-value) Choose a suitable scanning mode Reduce the settings Only use the image plate within 24 hours of data erasure. Do not expose used image plates to light. Exposure and the scanning of the image data should be carried out within half an hour. Clean the image plate by wiping carefully using a soft cloth and special cleaning agent taken from the cleaning set. All image plates with scratches must be replaced immediately /04

35 Problem Possible cause Solution 15. Intraoral image plate does not fall into the collecting tray 16. Warning: "Too much ambient light " 17. Pale stripes in scanning window 18. As well as the correct image, narrow images with light and dark streaks are visible 19. There is a wide, pale stripe at the top border of the image 20. Warning: incorrect power unit 21. Warning: excessive heating 22.Warning: erasure unit fault The intraoral image plate has been subject to a static charge and sticks to insertion slot of transport arc VistaScan subject to too much light Too much stray light entered during scanning Too much stray light entered during scanning Light entered after scanning and this was recognised by the software as belonging to the image. Incorrect power unit has been connected Laser too hot Erasure unit too hot LED defective LED dirty Remove the intraoral image plate carefully by hand. Do not slide the image plate over the housing. Darken the room Turn the VistaScan so that any light does not fall on the insertion slot Replace the light protection brushes Darken the room Turn the VistaScan so that any light does not fall on the insertion slot Replace the light protection brushes Darken the room Turn the VistaScan so that any light does not fall on the insertion slot Replace the light protection brushes Ensure film cassettes engage completely Only remove the film cassette once scanning has finished completely Darken the room Turn the VistaScan so that any light does not fall on the insertion slot Use the power unit provided Switch off the VistaScan and allow to cool Inform your Service Technician Inform your Service Technician 2007/04 35