- Frank`s Hospital Workshop
Contents
1. 6 6 TLP190 TLP190 4 VCCRAW 6 Basic Checkout 6 1 BOOT UP SEQUENCE SEEN FROM THE FRONT At boot up the main PCBA will display software version number then display four dashed lines while the manometer is zeroing to atmosphere pressure The dashed lines will remain until the zeroing process is complete typically four to 15 seconds If the SimCube is not vented to atmosphere at boot up no further operation will be allowed as the manometer cannot be considered reliable Four dashed lines will be displayed until the transducer determines is atmospheric pressure Once the zeroing process is complete the unit will show 000 0 on the display and the first of the mode indicator lamps will be lit In the unlikely event that the EEPROM calibration values have been lost the unit will display CAL instead of the dashes and the boot process will stop there 6 2 BOOT UP SEQUENCE SEEN FROM THE REAR Also during boot up the stepper motor will rotate the cam clockwise one or two times to establish the home position for the cam The home position is the cam orientation from which each simulated pulse will begin and end See section 3 3 for a definition of home position Home position will vary somewhat from unit but should always be in the range of 12 00 to 1 30 Looking for and understanding the home po2. o o Test Jumper J 22 o VBATT D POOOOOOLJ ooooooon w VLOCAL D 34 CUTOFF Battery Option Rev H 10 SimCube System Troubleshooting Tips SYMPTOM SOLUTION Readings inconsistent or no reading at all If using Battery Boost be sure the Batt On Off switch is ON and Batt Level LED is green If Level LED is Red or dark replace batteries with fresh set Readings inconsistent error message C05 on Welch Allyn 52000 Reduce Control cuff volume and movement by using Pronk Cuff Jacket Duo or inserting cuff inside 2 tube During NIBP simulation monitor continually inflates Check for leak in hose and cuff Use standard adult size cuff only for adult and cuff without reading hyper modes Use 3 4 fingers of space in center of cuff or use Cuff Jacket Duo Neo mode requires size 3 or 4 8 13cm cuff to be effective Alaris IVAC 4410 does not This device calculates diastolic during inflation Wait until it is done with its first get readings inflation cycle it will automatically restart inflation and will get reading The IVAC 4200 is primarily an auscultatory blood pressure monitor in fact there is a microphone built into the cuff
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5. UT CF IN FM GNI ROBNEM S SimCube SC 5 Rev J 5 1 POWER SUPPLY Input voltage 6V DC comes in at J22 as VCCRAW which is used for running the motor and display C6 prevents transient spikes on this Signal VCCRAW is then regulated VCC 4 xx V by U8 5 2 MICROCONTROLLER The microcontroller is clocked at 10MHz by X1 and held in reset until power is stable by U8 5 3 DISPLAY AND USER INTERFACE Numeric display data is presented to the 4 digit seven segment display U7 by serial to parallel latches U2 and U2 Data is fed to the latches by the microcontroller via the SPI synchronous serial bus SDATAOUT SCLOCK The mode display LEDs are also presented with data from a serial to parallel latch U10 which is also on the SPI bus S1 is the larger yellow button on the face of the unit 5 4 PRESSURE MEASURMENT Cuff pressure is measured the pressure transducer U7 amplified by an instrumentation amplifier U21 and then digitized to 13 bit resolution by the ADC U17 The ADC communicates with the microcontroller via the SPI bus There is no analog calibration adjustment rather during the calibration process reference points are established and stored in EEPROM The microcontroller coordinates this process via the use
6. Excit pin 1 Excit pin 4 Sig pin 3 Sig pin 6 Simulation rates Dynamic 120 80 70 40 190 120 Static 0 100 200 Step 0 25 50 100 150 200 250 Environmental Voltage Range 100 240 VAC 50 60 Hz 3 SimCube Mechanics The SimCube is made up of three primary assemblies as shown below These are The Face Plate Assembly This includes The face plate and front decal The Main PCB on standoffs The pneumatic bulkhead The IBP connector SC 5 only The Housing Assembly This includes The Metal housing The power Jack The ECG PCB and Snaps if applicable The Motor Assembly This includes The Motor The NIBP plastic The Interrupter PCBA The pneumatic harness These three assemblies are held together by 4 6 32 screws which extend all the way through the unit from the back of the Motor Assembly and which are held in place with acorn nuts on the front of the Face Plate Assembly The two screws nearest the ECG PCBA are insulated Housing Assembly Motor Assembly Face Plate Assembly 3 1 FACE PLATE ASSEMBLY The Main PCBA assembly is mounted onto the Faceplate via three 1 4 inch standoffs and when all the interconnecting wire harnesses and pneumatic assembly are disconnected can be removed from the SimCube as a complete assembly With the Face Plate Assembly removed from the unit the main PCBA can be removed by removing the three plastic nuts holding it in place The
7. 150 200 300mmHg 1 Re install the SimCube s blue rubber boot 8 1 3 Manometer Calibration Process for SC 5 Precheck calibration at 100 200 400mmHg 100 200 400mmHg to 0 5mmHg Normally no adjustment will be required Proceed with the following steps only if it is found that adjustment is required Remove the SimCube s blue rubber boot Power up SimCube for calibration and allow to warm up for 3 minutes Connect manometer to SimCube in a closed circuit with inflation bulb Vent to atmosphere and press calibration button S2 Inflate circuit to 100mmHg on calibrated manometer Allow for settling and adjust to exactly 100mmHg Press calibration button Note that the calibration button can be accessed without disassembling the unit Use a non metal probe such as an orange stick to press button Inflate circuit to 400mmHg on calibrated manometer Allow for settling and adjust to exactly 400mmHg Press calibration button Deflate to OmmHg Using 60cc syringe create a vacuum and adjust to 100mmHg Allow for settling and adjust to exactly 100mmHg Press calibration button Repeat for 200 300 400mmHg Check calibration at 100 200 400mmHg 0 5mmHg Check calibration at 100 200 400mmHg 0 5mmHg Re install the SimCube s blue rubber boot J Calibration Access Hole 8 2 ECG CALIBRATION 8 2 4 Required Equipment An ECG monitor capable of generating a strip chart recording with
8. Being so small means that harnesses and pneumatic assembly must be specifically routed to avoid pinching or kinking the tubing Please take note of routing during disassembly When opening the SimCube the blue plastisol boot must first be removed Take care to not catch the ECG snaps while removing the large boot 7 1 REMOVING THE FACEPLATE ASSEMBLY To remove the faceplate assembly that includes the Main PCBA start by loosening and removing the acorn cap nuts at the front of the SimCube Lift the faceplate off of the four inch 6 32 screws that hold the SimCube together Note harness and pneumatic placement before disconnecting and freeing the faceplate assembly To completely remove the Main PCBA loosen and remove the three nylon standoffs and if configured disconnect the IBP harness The Main PCBA should be completely free 7 2 REMOVING THE HOUSING ASSEMBLY If configured with ECG RESP the housing assembly will include the ECG PCBA To remove the housing assembly place the SimCube on the clear polycarbinate bottom From above place hands on outside of housing and push on the top of the motor assembly with your thumbs The Housing should slide up and completely lift off of motor assembly 7 3 REMOVING THE PNEUMATIC ASSEMBLY FROM THE MOTOR ASSEMBLY To remove the pneumatic assembly it does not require you to remove the motor Remove the small phillips screw and washer at the end of the assembly that holds the unit to the frame Using a
9. 0 Critikon 1846SX 117 0 79 0 0 7 0 0 CSI 123 0 82 0 N A N A Datascope Accutor 119 9 73 0 4 2 2 9 Datascope Passport 118 5 72 6 0 8 2 3 Draeger 119 7 79 0 0 6 1 0 Fukuda Denshi 118 6 78 5 0 5 0 4 GE Dash 3000 120 3 78 7 2 9 1 2 GE Pro200 107 0 82 6 2 9 4 0 GE Pro 400 113 1 73 6 5 0 5 2 GE Pro 400 V2 120 0 80 9 4 0 1 0 GE Marquette Solar 8000 119 8 81 3 1 0 1 7 HP Merlin 113 0 74 0 3 1 4 3 HP Viridia 120 0 72 7 1 5 2 2 IVAC4200 118 5 82 0 0 7 1 4 J amp J 117 0 79 0 N A N A Marquette Eagle 114 2 78 7 1 8 0 7 MDE E300 117 9 78 8 1 5 1 0 MDE Prism 119 0 82 6 1 2 0 7 Nihon Khoden 110 1 80 1 0 8 1 2 Philips Heart Smart 108 1 77 1 2 8 1 0 Phillips Intelliview 119 7 80 7 1 2 4 2 Phillips M8007 116 7 77 7 0 6 1 5 Spacelabs 90369 114 9 78 3 0 9 0 8 Welch Allyn 52000 121 4 83 8 2 8 2 8 Welch Allyn VS 116 1 83 1 3 2 3 2
10. itself However these monitors also have an oscillometric algorithm and will get consistent readings if you remove the cuff from the hose and connect the hose directly to the SimCube simulator IVAC 4200 does not get readings Can t get RESP waveform on Datascope Reconfigure snaps to the following black lead to white RA red lead to black LA and white lead to green RL Battery Boost Option does not charge batteries This is by design In order to allow customers to use off the shelf alkaline batteries no charge current is applied to the batteries being used Readings are always Each model of monitor has a different algorithm for calculating NIBP values high low on specific therefore different models even from the same manufacturer can yield different model manufacturer results Use the SimCube Sample Reading chart as a reference The amplitude of the respiration signal was carefully selected to ensure that Respiration does not count monitors will not count if 60hz noise is present Some monitors may require an adjustment to increase resp size in order to get an accurate respiration rate SimCube won t read 0000 shows at power up During power on initialization SimCube auto szeroes pressure itself Therefore vent circuit to atmosphere at power up and wait 15 seconds for auto zero to complete signified by 0000 on display Can t connect 12 Leads to Snaps Order ECG snap extender part number EXTEND 10 1 1 1 Unable to res
11. manometer move in response to the pressure change Blue Tubing Blue Pot Motor Harness 8 Calibration and Adjustments 8 1 MANOMETER CALIBRATION 8 1 1 Required Equipment The following equipment is necessary A high quality reference manometer capable of reading at least 0 to 500 mmHg SC 1 through SC 4 or 420 to 420mmHg SC 5 with an accuracy of at least 0 2mmHg over the measurement range One option is Miriam s Smart Manometer series The reference manometer must have a valid traceable certificate of calibration 8 1 2 Manometer Calibration Process for SC 1 through SC 4 Pre check calibration at 50 150 200 300mmHg 1 Normally no adjustment will be required Proceed with the following steps only if it is found that adjustment is required Remove the SimCube s blue rubber boot Power up SimCube for calibration and allow to warm up for 3 minutes Connect manometer to SimCube in a closed circuit with inflation bulb Inflate circuit to 100mmHg on calibrated manometer Adjust SimCube NIBP potentiometer until SimCube reads 100mmHg 1 Note that the NIBP potentiometer can be accessed with a small screw driver via a hole in the top of the SimCube s aluminum case about 34 back from the front face Disassembly of the SimCube is not necessary Deflate and allow re zeroing Approximately 10 seconds Re pump and check 100mmHg again Adjust potentiometer again if necessary Check calibration at 50
12. of the calibration push button S2 VR1 is not installed on SC 5 boards 5 5 MOTOR DRIVE The SimCube uses a bipolar 2 winding 3V stepper motor This means that during the step pattern progression the windings need not only to be turned off and on but also to be reversed in polarity This is normally done with switch configuration called a H bridge and is illustrated below V V Switch 1 Switch 3 Switch 2 Switch 4 Ground Ground When the winding needs to be at a positive polarity Switch 1 and Switch 4 are turned on while Switch 2 and Switch 3 are turned off When the winding needs to be at a negative polarity Switch 2 and Switch 3 are turned on and Switch 1 and Switch 4 are turned off The SimCube s motor windings are connected at J20 with the first winding between pin 1 and pin2 and the second winding between pin 3 and pin 4 Each winding has a H bridge and the two windings are placed in series so the H bridges are placed with one on top of the other The FETs Q1 through Q4 form the actual switches These are controlled by the serial to parallel latch U1 which is run by the microcontroller via the SPI bus 5 6 PHOTO INTERRUPTER The photo interrupter is U12 It presents an analog output which represents how much of the light path in the interrupter is occluded by the tab on the top of the slide This value is fed to an analog input on the microcontroller 5 7 ECG SIMULATION The ECG simulation circuit starts w
13. six 36 months from the date of shipment to the original purchaser Warranty is valid only to the original buyer Defective equipment should be returned freight prepaid to Pronk Technologies Inc Equipment returned with defective parts and assemblies shall be either repaired or replaced at the manufacturer s sole discretion This warranty is not applicable if the unit has been opened if repair has been attempted if the unit has been damaged due to operation outside the environmental and power specifications for the product or due to improper handling or use If any fault develops notify Pronk Technologies see Returns and Repairs below giving full details of the difficulty and include the model and serial number of the device Upon receipt of shipping instructions forward the device prepaid and repairs will be made at the factory The foregoing warranty is in lieu of all other warranties expressed or implied including but not limited to any implied warranty or merchantability fitness or adequacy for any particular purpose or use Pronk Technologies shall be liable only for repair or replacement of the SimCube NIBP Simulator and optional features Pronk Technologies shall not be liable for any incidental or consequential damages ORDER CANCELLATION AND REFUND POLICY You may return your item within 14 days of delivery for a full refund We are unable to exchange items however if you received a defective or incorrect item we will be happy
14. to make an exchange Item s returned for refund must be in its original condition undamaged and with no missing parts packed in its original packaging and include both the original receipt and an RMA number We will notify you via e mail or fax of your refund once we have received and processed the returned item You can expect a refund in the same form of payment originally used for purchase within 7 to 14 business days of our receiving your return RETURNS AND REPAIRS Please call Pronk Technologies Service Department at 800 541 9802 to obtain a Return Merchandise Authorization RMA number and the shipping address Returns should be packaged securely in the original packaging materials The RMA number should be clearly marked on the packaging If the return is for a new item and is a result of our error we will make arrangements for payment of return shipping Otherwise items should be returned freight prepaid to Pronk Technologies Sample Readings Different manufacturers different models and sometimes even different software versions can give quite different readings but the following are some average values obtained from a variety of devices Systolic Diastolic Model Systolic Diastolic STD Dev STD Dev Alaris 4410 128 7 77 7 3 0 3 7 Alaris 4510 120 3 79 0 4 6 1 8 Colin BP8800C 116 8 78 0 1 3 1 2 Critikon 8700 118 3 78 9 2 8 3
15. 1mV 1cm scaling in current traceable calibration and the appropriate ECG cable If needed Pronk Technologies can provide a schematic for a simple circuit to calibrate and ECG monitor from a calibrated DVM 8 2 2 Calibration Process e On the Monitor disable the ECG filter and Recorder Delay Place in lead l e Precheck the ECG calibration Normally no adjustment will be required e Some SimCubes are calibrated with 1mV on Lead while others are calibrated with 1mV on Lead II as follows Model SC 1 SC 2 SC 3 SC 4 SC 5 Cal on Lead Il for Software above 1 10 0 1 10 0 3 2 0 3 2 0 4 2 0 e ECG size should be 1mV 5 Proceed with the following steps only if it is found that adjustment is required Remove the SimCube s blue rubber boot Remove the four acorn nuts and pull back the Face Plate assembly Adjust ECG pot until R wave equals 1mV on recorder 5 Replace the Face Plate assembly see disassembly assembly instructions Replace the four acorn nuts Re install the SimCube s blue rubber boot Adjusting ECG Gain 8 3 8 3 An IBP CALIBRATION 1 Required Equipment invasive blood pressure monitor in current traceable calibration and the appropriate adapter cable 8 3 2 Calibration Process The Calibration of the SimCube s IBP circuit is set with fixed 0 196 resistors so there is no adjustment If the reading is out of specification the unit has a failure and m
16. IMULATION Like the ECG circuit the IBP circuit is separately isolated Also like the ECG circuit there is no specific isolation power supply In the case of the IBP the supply is derived from the excitation voltage supplied by the monitor to the transducer For most monitors the excitation voltage is a 5V DC signal however some monitors use an AC excitation or a pulsed DC excitation Support for these adds some complexity to this circuit The excitation voltage comes in via J2 pin 1 It is buffered by R56 and peak captured by D1 and C27 forming a positive DC supply This positive supply voltage is fed to the DAC U11 and OpAmp U30 and also to a charge pump inverter U20 The charge pump inverter generates a negative supply voltage which is also used by the DAC and OpAmp The DAC U11 is controlled by the microcontroller via the SPI bus signals which are isolated by U16 The digitally programmed values are multiplied by the reference voltage which is the excitation voltage and presented as a current to U30 which transforms them to a negative voltage So the signal at TP1 represents the desired BP value multiplied by the excitation voltage signal and inverted This signal is scaled down and biased to 1 2 of the excitation voltage by the output resistor network and fed to the negative transducer signal output J2 pin 6 The positive transducer signal output J2 pin 3 is tied to 1 2 the excitation voltage The negative excitation voltage
17. N to Datascope connector It is 80 00 DATASCOPE six inches long and works with the IBP Extension cable IBP Interface Cable for GE Marquette Monitors This cable is used to IBP GE interface with GE monitors It has a six pin mini DIN to GE style connector It is 80 00 six inches long and works with the IBP Extension cable IBP Interface Cable for MDE Spacelabs This cable is used to interface with MDE and Spacelabs IBP MDE monitors It has a six pin mini DIN to MDE Spacelabs style connector Itis six inches long and works 80 00 with the IBP Extension cable 13 Services Prices subject to change without notice SERVICE ITEM NUMBER DESCRIPTION PRICE USD SC 3 4 Upgrade Service SC 3 to SC 4 Upgrade 300 00 Extended Warranty 1 year Calibration Service Full checkout and calibration incl certification 100 00 e Calibration Service Full checkout and calibration incl certification 120 00 eee ae Rejuvenation SimCube Rejuvenation Service 283 00 Complete checkout calibration and certificate and multiple part replacement depending on wear Boot replacement Extended Warranty up to 5 years total may be purchased only at time of original sale or with purchase of Rejuvenation Service 14 Warranty and Service Information SimCube Limited Warranty The SimCube NIBP Simulator with optional ECG Respiration and IBP feature is warranted against defects in materials and workmanship for a period of thirty
18. Sim Cube NIBP Simulator Service Manual In terms of the requirement of European Council Directive 2002 95 EC of 27 January 2003 RoHS SimCube NIBP Simulator Models SC 1 SC 2 SC 3 SC 4 SC 5 SimCube Battery Boost Option power supplies and accessories are excluded in accordance with Article 2 Paragraph 1 as these products fall into Category 9 Annex 1A set out in Directive 2002 96 EC of 27 January 2003 WEEE To dispose this product contact Pronk Technologies at support pronktech com We will issue a RMA and pay for return shipment C A Ze e SimCube Pronk and Pronk Technologies are trademarks of Pronk Technologies Inc 2007 Pronk Technologies Inc All rights reserved Table of Contents Contact Us Sales 800 609 9802 Technical Support 800 541 9802 or 818 768 5604 FAX 818 768 5606 Email sales pronktech com for sales service pronktech com for service Web site www pronktech com Sim Cube Service Manual Models SG 1 SG 2 SC 3 SC 4 and SC 5 1 Overview 1 4 SIMCUBE OVERVIEW The SimCube simulation system provides NIBP simulation in a small portable easy to use package In addition to NIBP simulation optional ECG respiration and invasive blood pressure simulation are available Combined with the Battery Boost option and the OxSim the SimCube family or products are the biomedical engineer s ultraportable tools of choice 1 2 CALIBRATION OVERVIEW Calibration of the SimCube is simple and ma
19. ap Extenders If using 12 lead clips instead of snaps to connect to the EXTEND SimCube a set of Snap Extenders is recommended 40 00 Bulb Adapter This hand bulb adapter is utilized in static calibration as well as ADAPT B in Peak Detect Mode for SimCube models SC 3 and SC 4 40 00 Nylon Carrying Case When using your SimCube system outside the shop CASE this padded nylon carrying case is recommended for added security and holds 50 00 all your adapters nicely Large Nylon Carrying Case This case is for use with the SC 5 and all LARGE CASE accessories It is large enough to hold all the IBP adapter cables battery 80 00 Module NIBP adapters and more Cuff Jacket Slide the NIBP cuff inside our patent pending Cuff Jacket to CUFF JACKET create a controlled and repeatable cuff volume without the need for bulky DUO mandrels Use of the larger Cuff Jacket is suggested for optimum repeatability 40 00 on most monitors The small Cuff Jacket is required on a few older NIBP monitors such as Welch Allyn 52000 series IBP IBP Extension Cable This six foot long extension cable allows you to use EXTENSION any of the interface cables below 20 00 IBP Interface Cable for Merlin This cable has a six pin mini DIN to Merlin IBP MERLIN style connector It is six inches long and works with the IBP Extension cable 80 00 IBP Interface Cable for Datascope Monitors This cable is used to interface IBP to Datascope monitors It has a six pin mini DI
20. e of the housing through a plastic shoulder washer On the inside of the housing a plastic washer sits between the housing and the PCBA On the top of the PCBA the snap is retained and held to the pad on the PCBA via a lock washer and a 4 40 small pattern nut Metallic contamination under the ECG PCBA on any of the plastic hardware can violate the electrical isolation and lead to reduced ECG performance Shoulder Plastic Washer Washer Lock Washer and Nut A calibration hole is provided in the top of the housing assembly to allow calibration of the manometer without disassembly of the unit It can be accessed by lifting the foil tape On the wiring harness that comes from the ECG PCBA Pin 1 or Red color wire is ECG which contains the digitized ECG signal Pin 3 or Blue color wire is RESP which contains the digitized respiration and Pin 2 or Green color wire is PACE which contains the pacer artifact signal Pin 4 or the black wire is ground 3 3 MOTOR ASSEMBLY The Motor Assembly is shown below Pneumatic Harness Interrupter PCBA Home Position Dot Elastic Tube This assembly functions as follows The Motor turns the Cam which moves the Slide via the bearing and compresses the Elastic Tube which creates pressure pulses The pressure pulses are conveyed to the bulkhead and pressure transducer via the pneumatic harness A tab on the top of the Slide breaks the beam of a photo interrupter which is mo
21. ean motor mount screws of any thread locker or plastic before re installing Be sure to re locate washers during re assembly Finally because of the vibration during NIBP reading we recommend applying thread locker on the motor mount screw and nut ONLY use thread locker made for ABS material as other thread locker chemicals may dissolve plastic materials As noted above re installing the interrupter assembly can have an affect on NIBP dynamic calibration Please contact Pronk Technical support if interrupter requires re installation 7 6 2 Housing assembly The single important thing here is to NOT pinch the pneumatic tubing while re installing the housing assembly The best way to avoid this is to turn the Cam at the back of the unit to the 9 00 position This allows for maximum space for the pneumatic tube to lie in away from the aluminum housing during re installation Once the housing is fully down onto the frame tuck the pneumatic tube into a natural position and away from the polycarbonate bottom If configure with ECG RESP be sure that the two long screws that hold the SimCube together and are on either side of the ECG PCBA have heat shrink on them to isolate them 7 6 3 Faceplate assembly Re installing the faceplate assembly is about getting the harnesses correctly re connected and closing the SimCube without pinching harnesses and ensuring that the harnesses do not get in the way of the pneumatic assembly potentially causing a ki
22. generated by this ringing is captured by D2 and C3 The switching of L1 is controlled by the microcontroller U2 which can adjust the width and frequency of the switching based on battery and load conditions Several limit conditions such as a maximum duty cycle limit and a maximum voltage limit are evaluated by the comparators formed by U1 and gated into the switching waveform by U4A and B When the external supply is connected the boost converter is turned off and the external supply voltage is switched to the output by Q3A Q3B and Q1B Note that three FETS are used for this switch because the internal body diode in the FETs conduct the output voltage back to the external supply input and the voltage drop generate by the body diode of a single FET is not enough for the microcontroller to accurately assess whether itis seeing an active external supply or body conduction of the output voltage Battery status is displayed on D1 and external power supply status is displayed on D8 VBATTD Q3A IRF7304 IRI Pra Q1B IRF7307 Channel Fet L1 4 7uH YYY D2 SCHOTTKY Q1A IRF7307 N Channe Fet VBATTD D VEXTD C VBATT C U2 PIC16F872 IMCLR A3 gt ra zu 6000007
23. is tied directly to IBP isolation ground on J2 pin 4 The diagrams below show the pin out of the IBP signals Signal Name Pin Number Excitation Plus Excitation Minus Signal Plus Signal Minus No Connect OIIN O OO By No Connect IBP connector pin out Looking at SimCube face 5 9 SC 1 THROUGH SC 4 VS SC 5 ELECTRONICS DIFFERENCES The schematic diagram for the PCBA used on the SC 1 through SC 4 is shown below It is mostly identical to the SC 5 previously discussed with the following exceptions There is no IBP Circuit The instrumentation amplifier for the pressure transducer is made up of discreet opamps U5 rather than being an integrated instrumentation amplifier The ADC on board the microcontroller is used to digitize the cuff pressure signal rather than a separate ADC as on the SC 5 Manometer calibration is performed by using a potentiometer to modify a reference signal rather than by using the button to modify EEPROM constants as on the SC 5 7 LEDOSZ LEDO Channel P D5 7 LEDO RF7307 U5B MCP609 USC MCP609 R23 8870hm D4 LEDO IRF7304 IRF7304 D3 LEDO Sz
24. ith the signals ECG PACE and RESP coming out of the microcontroller The ECG signal is a pulse width modulated square wave where the width of each pulse represents the correct amplitude of each R wave at any give point in time The PACE signal is a narrow pulse which goes high when the simulated pacemaker is to fire and the RESP signal is a slow square wave which toggles value twice for each simulated breath These signals are fed to the ECG PCB via J6 and J8 Once on the ECG PCBA the three signals are sent across the isolation barrier formed by the opto couplers U13 U14 and U15 Note that these opto couplers are photo voltaic they generate an output voltage on the isolation side from only the light they receive from the non isolation side This means that no isolation power supply is necessary The ECG signal comes across via U15 The PWM frequency is filtered out by R30 and C13 then the signal is gain adjusted via R18 The signal is then scaled down and fed to the ECG ladder formed by R37 through R42 The pace signal comes across on U14 Note that this signal bypasses the low pass filter used by the ECG signal so that it can represent the higher frequency pacemaker signal The RESP signal comes across on U13 The signal is rescaled and processed to prepare it to drive the gate of JFET Q11 Q11 when on switches a 200k parallel resistance across the ECG ladder effectively changing the resistance value of each resistor in the ladder 5 8 IBP S
25. lse Volume 1 ml NIBP Hypotensive Simulation SC 5 Simulated Pressure 80 40 60 mmHg Simulated Heart Rate 70 bpm Simulated Pulse Volume 1 ml ECG Simulation SC 2 4 5 Isolated Yes Synchronized with NIBP Yes R Wave Size 1mV lead l 5 R Wave Width 35 ms Wave Shape QRS wave Connection 10 Snaps Simulation Rates 70 95 Asystole Arrhythmia SC 5 Pacer HR seq SC 4 5 HR Sequence SCA 5 30 seconds each of 30 60 90 120 45 160 and 220 bpm Pacer Simulation Isolated Yes Synchronized with NIBP Yes Pacer Size 3mV Pacer Width 1 2 ms Respiration Simulation Isolated Yes Synchronized with NIBP Yes Wave Shape Square Wave Size 4 Ohm Rate 35 bpm 47 bpm for neonatal Simulation rates 20 40 Apnea Sequence 00 30 45 60 22 30 80 110 Arrhythmia Simulation SC 5 Cardiac failure sequence 90 seconds of normal beats interspersed with PVCs and Runs followed by 20 seconds of VTAC followed by 35 seconds of VFIB concluding with 30 seconds of asystole Peak Detect Precision 0 5mmHg SC 4 0 1mmHg SC 5 Invasive Blood Pressure Simulation SC 5 Isolated Yes Synchronized with NIBP Yes Excitation Voltage DC range 3 3 to 5 7 AC range 6 65 to 11 4p p Pressure range 0 250 mmHg Simulated Pressure accuracy 1 mmHg Wiring
26. mall clear white tube rout so that there are no wire harnesses in the area of the Y connecting the blue and clear tube Ensure the clear tube is fully on to the transducer located in the center of the main PCBA For SC 1 through 4 platform Pneumatic routing is slightly different with this assembly Rout the blue tubing to the bulkhead connector so that the tubing is next to the housing wall and the ECG and power harness are on the opposite side of the bulkhead connector Rout the wire harnesses off to the opposite side and out of the way of the pneumatic tubing For both platforms One last important task before closing up the SimCube On the pneumatic assembly there is a 2 5 inch rise of blue silicone tubing that separates the Y and the L fittings This part of the pneumatic tubing needs to the routed so that the tubing passes between the housing wall and the blue potentiometer as in the drawing below This will help keep the tubing from kinking when the SimCube is closed This is also a good time to check that all the above has been successfully implemented and to do a trial power up If the SimCube comes up as expected remove power and complete the assembly Finally when closing up the SimCube ensure all harnesses and pneumatics are fully connected then close the SimCube and replace the acorn or cap nuts Connect the power supply again and check that there is no kinking in the pneumatics by blowing into the bulkhead connector You should see the
27. nk in the tubing Start by having the rest of the SimCube assembled This should include motor assembly ECG housing assembly bottom polycarbonate plastic and the four long screws Place the SimCube on it s bottom with the front facing the ceiling Facing the SimCube orient the faceplate assembly and start connecting the wire harnesses The Red motor harness should be first and connected to the 4 pin non locking connector The correct orientation for the motor harness is for the wires to be pointing in towards the center of the PCB NOT coming out off the PCB All other connectors are keyed Work your way through the power harness 2 pin IBP harness 6 pin ECG harness 4 pin and interrupter harness 3 pin After all the wire harness are connected the last thing to connect is the pneumatic assembly Refer to section 3 1 It is critical to SimCube operation that the pneumatic assembly is fully connected and when the circuit is completed to the monitor completely air tight Ensure that the silicone tubing is fully engaged on to fittings For SC 5 platform Route the blue tubing to the bulkhead connecter so that the ECG and power harnesses are pushed between the housing wall and the bulkhead connector and are tucked down between the motor and the ECG board Ensure the blue silicone tubing is fully onto the bulkhead connector Always connect the small clear white tube to the transducer last just before closing up to ensure connection To connect s
28. olve Contact Pronk Technologies Technical Support at problem 800 541 9802 11 Parts List Service Assemblies Description SC 5 Main PCBA Main PCBA for SC 5 with software SC 1 through 4 Main PCBA Main PCBA for SC 1 through 4 Specify model for software ECG Housing Assembly ECG Resp PCBA installed in SimCube housing Motor assembly SimCube motor assembly with serial number interrupter assembly and pneumatics assembly Interrupter assembly Interrupter harness mounts on motor assembly Power Harness Assembly Power harness for SimCube Pneumatics assembly Pneumatics assembly for installation on motor assembly Battery Option case assembly Battery option case service replacement Includes top bottom and face parts SC 5Faceplate bottom kit Set of 1 SC 5 faceplate and bottom plates with bulkhead Specify graphic overlay 12 Accessories Prices subject to change without notice P N DESCRIPTION PRICE USD DINAMAP Critikon style A threaded screw on connector used on Critikon ADAPT D and MDE monitors 40 00 Marquette style A freely rotating twist on connector used on GE Marquette ADAPT M monitors 40 00 Quick Disconnect A push pull quick disconnect connector used on HP ADAPT Q monitors 40 00 Luer A friction based connector used on Spacelab monitors and most ADAPT L neonatal monitors 40 00 ECG Sn
29. our thoughts about how our products could better fit your needs we look forward to hearing from you 2 SimCube Specifications Physical Dimensions Size 3 x 3 x 3 5 7 6cm X 7 6cm X 8 9cm Weight 2 5 Lbs Power External A C Adaptor Output 6VDC 2amps 2 1mm center positive connector or 4 AA Batteries with Battery Boost Option NIBP Connection Quick Disconnect Female ECG Resp Connection 10 ECG snaps IBP Connection Mini DIN Manometer Range SC 1 2 3 4 0 480 mmHg SC 5 400 to 400 mmHg Precision SC 1 2 3 4 0 5 mmHg SC 5 0 1 mmHg Accuracy 1 of reading User Interface Single Button Operation Operating Modes Adult NIBP Neo NIBP Hypertensive NIBP Hypotensive NIBP SC 5 only Manometer Peak Detect SC 3 4 5 only HR Seq Alarm Test SC 4 5 only ECG Pace ON Arrhythmia Sequence SC 5 only Heart Rate Sequence SC 4 5 only Invasive BP Zero SC 5 only Invasive BP 100 200 SC 5 only Invasive BP Sequence SC 5 only NIBP Adult Simulation Simulated Pressure 120 80 100 mmHg Simulated Heart Rate 70 bpm Simulated Pulse Volume 1 ml NIBP Neonatal Simulation Simulated Pressure 70 40 55 mmHg Simulated Heart Rate 95 bpm Simulated Pulse Volume 0 5 ml NIBP Hypertensive Simulation Simulated Pressure 190 120 150 mmHg Simulated Heart Rate 70 bpm Simulated Pu
30. re are two different main PCBA assemblies The SC 1 through SC 4 Main PCBA is based on a PIC16F872 while the SC 5 SimCube is based on a PIC16F876 A SC 5 Face Plate assembly is shown below The layout of a SC 4 through SC 4 Face Plate assembly is the same except that that there is no IBP connector and the programming connector is populated differently Also the SC 1 through SC 4 use analog rather than digital calibration so the Calibration switch is replaced with a calibration potentiometer SC 5 Face Plate Assembly Program Comm Connector 8 pin Pressure Transducer Interruptor gi x Connector 3 X 4 Pneumatic 3 pin AC 7 Bulkhead IBP Za gt Connector onnector 6 pin 4 pin Calibration Button IBP Motor Mini Din Connector Connector 4 pin 3 2 HOUSING ASSEMBLY The housing assembly is shown below Power Jack and Harness Ta ne lt Calibration ECG PCBA and Harness The ECG PCBA is mounted on the shafts of the snaps on the inside of the Housing Assembly Note that for proper operation the ECG it must be electrically isolated from the rest of the assembly Opto couplers carry the signals across while keeping the ECG circutry isolated but it is also critical to maintain the mechanical isolation between the PCBA and the aluminum housing The correct stack up of mounting hardware to maintain this isolation is shown below The snap feeds from the outsid
31. sition at boot up can tell you a lot about the operational status of your SimCube 6 3 POWER CABLE AND JACK Test the power jack and the strain relief on the input power cable by wiggleing input cable in the power jack and verifying that the unit does not reset 6 4 MANOMETER Attach a syringe or a hand bulb to the pressure port on the SimCube Place the SimCube in Manometer mode and introduce pressure Verify the that manometer responds correctly 6 5 PULSE GENERATION Attach a syringe or a hand bulb to the pressure port on the SimCube Place the SimCube in Adult mode and inflate to 100mmHg and observe the cam motion The cam should rotate from its home position in the range of 12 00 to 1 30 to its peak position of 4 00 to 5 30 and back During operation the cam should never move beyond the 6 00 position See Section 3 3 It may be necessary to use a small volume to absorb the pulses made by the SimCube If too small of a volume is used for this test it will be difficult to get the pressure to an accurate 100mmHg as it will be pulsing substantially 6 6 ECG OPERATION Connect the SimCube to the ECG lead wires of a known working patient monitor and verify the presence of ECG pacer and resp signals 6 7 IBP OPERATION Connect the SimCube via the extender and provided adapter cable to a known working patient monitor and verify the presence of the IBP signal 7 SimCube Disassembly and Assembly The SimCube is very small and compact
32. small slotted screwdriver pry the nylon elbow fitting up and out the channel Then slowly pull the pneumatic assembly free of the frame 7 4 REMOVING THE INTERRUPTER ASSEMBLY FROM THE MOTOR ASSEMBLY It is important to note that removing the Interrupter assembly can affect the dynamic calibration of your SimCube This should be done only with communication with Pronk Technologies technical support to ensure reading capture accuracy 7 5 COMPLETE DIS ASSEMBLY OF THE MOTOR ASSEMBLY To remove the motor and gain access to the slide loosen the four mounting screws holding the motor onto the assembly Slowly lift the motor cover and four mounting screws off of the rest of the assembly Take note of any washers their size and locations before going forward This will help during re assembly Lift off the slide 7 6 RE ASSEMBLY TIPS Please read these tips to help make your servicing successful Because the SimCube is so small and compact attention to detail during re assembly can make all the difference 7 6 1 Motor assembly There are two important concepts to re assembling the Motor assembly First the slide and frame must be cleaned and re lubricated before re assembly It is important that there be no foreign particles that can find there way into the area where the slide rails meet the frame rails Motor harness should be oriented to the front of the assembly determined by the pneumatic harness large tube being in front Second be sure to cl
33. unted on the interrupter PCBA The Frame provides the structure for the assembly The Cam is equipped with a home position Dot which allows us to observe and express Cam position and movement Cam position is expressed in terms of clock hands with the assembly oriented as shown Normal home position shown for example is usually between 12 30 and 1 30 Note that all connections on the pneumatic harness are sealed with silicone glue to reduce any chance of leakage around the hose barbs on the fittings If the harness is disassembled for any reason all joints that have been disturbed should re glued 4 SimCube Electronics r vcc RAW VCCRAW D 0000090 T si VCCRAW U6 PIC16F873A nd cil C2 Le 22pf T SCLOCK XZ mmc OUNGOSENU BOO 9 VCCRAW D O1A IRF7304 iat 4 IRF7307 R16 O2A U13 R18 100k 40 TLP190 IN OUT IN OUT
34. ust be repaired 9 Hook up the IBP adapter cable to the monitor and the SimCube Select the SimCube mode which shows 0 mmHg in the IBP column Zero the IBP on the patient monitor Select the SimCube mode which shows 100mmHg in the IBP column The reading on the patient monitor must be 100mmHg The Battery Boost Option The schematic diagram for the Battery Boost Option PCBA is show below The purpose of this module is to provide the 6VDC require by the SimCube from a pack of 4 AA batteries whose voltage can vary from 6VDC to 2 5VDC depending on discharge level The module also automatically switches over to the external power supply when that is plugged in and displays battery and external power supply status The external power supply is connected at J6 the battery pack connects and J4 and the output of the module is on J5 The internal power supply signal is VCC which is regulated by regulator J3 U3 takes its power VLOCAL from and or d combination of external power supply voltage battery pack voltage and the module s output voltage Running on the module s output voltage is important in that it means the module can continue to operate even when the battery voltage drops too low to support its internal electronics The heart of the module is the boost converter formed by L1 Q1A D2 and C3 When Q1A is on current flows through L1 to ground When Q1A is turned off the voltage on output of L1 rings up over its input voltage The spike
35. y be done by qualified individuals by using the processes provided in this document NIBP calibration is done via an access hole on the top of the SimCube ECG R wave calibration is done by lifting the faceplate and accessing the calibration potentiometer located on the ECG PCBA IBP is calibrated at the factory with 0 196 resistors If IBP calibration check yields the need for re calibration contact Pronk Technologies technical support for assistance 1 3 WARRANTY The SimCube has a three year warranty Pronk Technologies provides many assembly level parts to repair the SimCube if it is out of warranty or if it is necessary to performs repairs outside of the factory A list of parts is provided in this document 1 4 SERVICE CAUTION The SimCube is small and so all the electronics mechanics and pneumatics that make up the SimCube are compact and specifically routed When opening up the SimCube care must be taken to note the routing and positioning of all harnesses pneumatics and other assemblies When reassembling these must be correctly re positioned to ensure proper operation of the SimCube If you have any questions please feel free to contact us 1 5 TECHNICAL SUPPORT Pronk Technologies is dedicated to providing support to our customers in whatever manner they need Our technical support staff are available by phone or email to provide help from operation level to component level Whether it is an application issue a service issue or y
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