MR-compatible camera „12M“
Contents
1. SAT PATA Pe HH TORY MR compatible camera 12M User manual 1 Intended use Our MR compatible video cameras are designed to view and record video images of subjects in an MR scanner They can also be used for the monitoring of objects and instruments The cameras can be used inside the bore of the scanner They can be equipped with different exchangeable lenses The correct orientation of the cables the correct installation of the filter box and the correct grounding should be checked before the application Respective descriptions can be found in this user manual The cameras are not equipped with an automatic alert in case of an interruption of the video stream That is why they are not intended to identify critical states or situations 2 System components Camera Filter box with optical isolation of video signal Camera connection cable length 10 m 2 m at the camera 8 m elongation cable Power supply length 1 8 m BNC cable length 2 m BNC Cinch adapter Earth ground cable for provisional installation MRC Systems GmbH version 10 May 22 2015 page of 7 SAT PT Pe Soe TORY 3 Video camera and lens Figure 1 shows the camera housing and the connected lens connection focus 12x0 5 mm lens mount cable adjustment with lens mounting holes Figure 1 Video camera with lens The lens is connected to the standard M12 mount in the housing The focus adjustment is done by screwing the lens in and out Car2. The following copies are enlarged MR_CAM MR_CAM MR_CAM MR_CAM Model 12M MRC Model 12M MRC Model 12M MRC Model 12M SN 120202HFB170 CCIR SN 120202HFB170 EIA SN 120202HFB170 PAL SN 120202HFB170 NTSC Supply 6VDC 200mA Supply 6VDC 200mA Supply 6VDC 200mA Supply 6VDC 200mA MRC Systems GmbH MRC Systems GmbH MRC Systems GmbH MRC Systems GmbH Hans Bunte Str 10 Hans Bunte Str 10 Hans Bunte Str 10 Hans Bunte Str 10 a slay Heidelberg 3 pase Heidelberg D 69123 Heidelberg D 69123 Heidelberg Germany Germany In addition there is a label on the filter box MR_CAM Model FIL iso SN 120202HFB169 Supply 6VDC 200mA MRC Systems GmbH Hans Bunte Str 10 D ae Heidelberg German 12 Contact MRC Systems GmbH Hans Bunte Strasse 10 D 69123 Heidelberg Germany phone 49 6221 13803 00 fax 49 6221 13803 01 mail imfo mrc systems de MRC Systems GmbH version 10 May 22 2015 page 7 of 7
3. ame grabber or video card A BNC Cinch adapter and a standard BNC cable are used to transfer the video output signal to a TV set VCR frame grabber or video card The BNC cable is plugged via the adapter to the video connector at the filter box see figure 4 The video signal can be directly viewed with a TV set or recorded with a VCR To view and store the images with a PC the BNC Cinch cable must be connected to a frame grabber or video card within the PC Any software for analog video viewing should be appropriate to process the signals MRC Systems GmbH version 10 May 22 2015 page 4 of 7 9 Technical data Sensor Type Output Sensitivity ACT PAPE HH TORY B W or color CMOS Sensor 1 3 inch EIA NTSC video signal with 60 Hz half frame rate or CCIR PAL video signal with 50 Hz half frame rate 0 2 Lux for f 1 2 B W Spectral sensitivity B W camera sensitivity au 400 500 Housing dimensions Dimensions Connector for lens Mounting thread Weight Lenses Type Mount Focal length Standard delivery Aperture Sensor format Minimal object distance Electronics Power supply Output impedance Type Filter box Dimensions Weight MRC Systems GmbH 600 oO Oo o Oo Oo Oo Oo So oO O qm T wavelength 28 mm x 18 mm height 23 mm lens 12 x 0 5 mm mount 2x 2 mm distance 23 mm 22 g fixed focal length with fixed aperture exchangeable 12 x 0 5 mm a big number of differ
4. e MRI equipment from the external power network is guaranteed Camera connector Figure 2 Filter box front side 6 Filter box installation For a permanent installation the filter box should be screwed onto the panel board by means of the feed through camera connector see figure 2 Figure 3 illustrates the recommended configuration A 12 mm through hole in the panel board is required The camera connector is guided through this hole The camera connector provides the ground connection to the shielding of the MR cabinet For temporary use the camera cable can be brought into the MR cabinet by other means e g through a service entry hole waveguide In this case an additional grounding cable should be used to connect the camera connector to the shield panel grounding The camera connector must completely protrude into the MR cabinet and the video cable must not jut out MRC Systems GmbH version 10 May 22 2015 page 3 of 7 JAAR PMP oe Lena MR cabinet Camera BNC Cinch adapter MR compatible connector camera ks Filter connector cable 12 mm supply monitor through hole Figure 3 Device and cable configuration 7 Connection of power supply The power for the camera is transmitted via the video cable Therefore the power supply is connected to the filter box see figure 4 video connector Figure 4 Filter box rear side 8 Connection of TV set VCR fr
5. e should be taken not to screw out the lens too far as the lens may fall out of the thread The camera is connected to the filter box via a connection cable which must be plugged into the MR CAM Signal IN connector It can be mounted directly to any suitable object via the two 2mm holes in the camera backplate 4 Mounting options Standard mounting options are 1 direct mounting of the camera using the mounting holes 2 use of a ball joint mount optional accessory e g for use inside the MR bore 3 use of an articulated arm optional accessory for mounting the camera e g to the head coil 4 use of a tripod adapter optional accessory for mounting the camera on a tripod You can find photos of the optional accessories in section 10 of this manual MRC Systems GmbH version 10 May 22 2015 page 2 of 7 5 Connection of camera to filter box The camera is connected to the filter box via the camera connection cable which includes power and signal lines as well as shielding The filter box prevents the transmission of disturbing signals into the MR cabinet It avoids interferences in the video signals and the MRI imaging The filter box includes a low pass filter that suppresses frequencies higher than 1 MHz with over 100 dB This filter prevents damage and interferences caused by the high frequency signals of the MR scanner Additionally an optical isolation 1s included in the filter box In that way a full separation of th
6. ent focal lengths are available focal lengths 4 3 mm 6 mm 8 mm other lenses on request e g 2 4 1 3 inch 50 mm typical depending on the chosen lens 200 mA 6 12 V DC 75 Q Friwo FW7555M 06 6 V medical power supply 80 mm x 120 mm x 80 mm approx 700 g version 10 May 22 2015 page 5 of 7 ASAT PATER eo Lee 10 Accessories We offer different camera holders and light sources as accessories to the MR compatible camera Examples are shown in the photos below We can also produce customised solutions More information can be found in the specific product descriptions On request we can also offer additional equipment like displays or video cards Camera holders Camera holder with ball joint for easy alignment Flexible camera holder based on articulated arm Camera holder at head coil Figure 5 Selection of MR compatible camera holders MRC Systems GmbH version 10 May 22 2015 page 6 of 7 SAT PATE PE eee Lee LED light source For applications of the video camera in dark environments we offer a compact light source with infrared or white light It can be mounted next to the camera by means of a plastic fixture Figure 6 MR compatible LED light source in the right photo mounted to the articulated arm besides the video camera 11 Labelling A label on the camera housing includes the information about the embedded video sensor black amp white CCIR 50Hz EIA 60Hz color PAL 50Hz NT SC 60Hz
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