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Theory of Operation

SurgiStat Low-Power Electrosurgical Generator Service Manual

4-3

Functional Overview of Key Circuits

Temperature-Sensing Circuit

System logic uses the temperature-sensing circuit to monitor the internal temperature of
the generator. If the temperature rises above 185 °F (85 °C), the system displays error code
E7 and disables the RF output.

Speaker Circuit

System logic uses the audio circuit to generate activation tones and alarm tones. You can
adjust volume for the activation tones from the back panel of the generator.

Diagnostic Circuit

The diagnostic circuit converts the analog temperature and analog DC voltage
measurements to digital values. This information is sent to the control logic for continuous
monitoring.

Patient Return Electrode Sensing Circuit

The patient return electrode sensing module senses and sends signals to the system logic,
which displays which type of patient return electrode is attached to the patient.

When connecting a single-plate patient return electrode to the generator, the pad-sensing
module detects if the resistance is below 5 Ω. If it is below 5 Ω, the SurgiStat displays the
green single-plate LED on the front of the generator.

When connecting a split-plate patient return electrode to a patient and the pad-sensing
module detects a resistance between 10 and 135 Ω, the SurgiStat displays the green split-
plate LED on the front of the generator.

The pad-sensing module constantly monitors the patient contact quality. If the impedance
changes by a specific amount, the generator displays an alarm and immediately
deactivates the RF output power.

RF Amplifier Circuit

The RF amplifier circuit generates the RF output energy that is delivered to the patient. It
is a single-ended power amplifier, incorporating three power MOSFETs and two step-up
transformers.

Notice

You cannot adjust alarm volume up or down.

Warning

Patient return electrode contact quality is only monitored when a split-plate patient return
electrode is attached to the patient.

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Содержание SurgiStat

Страница 1: ...Service Manual SurgiStat TM Low Power Electrosurgical Generator ...

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Страница 3: ...Service Manual SurgiStat TM Low Power Electrosurgical Generator 1079008 ...

Страница 4: ... quality components and was built in an ISO 9000 registered environment In the unlikely event that your generator fails within one year of purchase date Covidien will warranty the product and effect factory repairs Please refer to the Limited Warranty for what is covered and how long For information on how to obtain a Return Authorization Number refer to Step 1 Obtain a Return Authorization Number...

Страница 5: ...ng Indicates a potentially hazardous situation which if not avoided could result in death or serious injury Precaution Indicates a hazardous situation which if not avoided may result in minor or moderate injury Notice Indicates a hazard that may result in product damage Important Indicates an operating tip or maintenance suggestion ...

Страница 6: ...price for the products sold to the customer This limited warranty is non transferable and runs only to the original purchaser of the covered product s There are no warranties which extend beyond the terms hereof Covidien disclaims any liability hereunder or elsewhere in connection with the sale of products and for any form of indirect tort or consequential damages This limited warranty and the rig...

Страница 7: ...rivative works including without limitation translations transformations adaptations or other recast or altered versions based on the Software or alter the Software in any way iii merge the Software with any other software or product not supplied by Supplier iv use copy sell sublicense lease rent loan assign convey or otherwise transfer the Software except as expressly authorized by the Agreement ...

Страница 8: ...s to Customer that the Software will perform substantially as described in COVIDIEN s then current documentation for such Software for the longer of a the remaining warranty applicable to the product with which such Software was delivered not to exceed one year or b ninety 90 days from the date such Software was shipped or first made available to Customer for electronic download from COVIDIEN s se...

Страница 9: ...vely at private expense consisting of commercial computer software and commercial computer software documentation as such terms are defined or used in the applicable U S acquisition regulations The Software is licensed hereunder i only as a commercial item and ii with only those rights as are granted to all other customers pursuant to the terms and conditions of this License Customer shall not use...

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Страница 11: ...on Hazards 1 6 Generator Electric Shock Hazards 1 7 Servicing 1 8 Cleaning 1 8 Chapter 2 Controls Indicators and Receptacles Front Panel 2 2 Cut and Blend Controls 2 2 Coag and Bipolar Controls 2 4 Indicators 2 6 Power Switch and Receptacles 2 7 Rear Panel 2 8 Symbols on the Front Panel 2 9 Symbols on the Rear Panel 2 11 Chapter 3 Technical Specifications Performance Characteristics 3 2 Input Powe...

Страница 12: ...s power setting Bipolar 3 14 Output power vs power settings for all modes 3 14 Output power vs impedance for Cut mode 3 15 Output power vs impedance for Blend mode 3 15 Output power vs impedance for Desiccate mode 3 16 Output power vs impedance for Fulgurate mode 3 16 Output power vs impedance for Bipolar mode 3 17 Reference Output Waveforms 3 17 Cut Mode Waveform 3 17 Blend Mode Waveform 3 18 Des...

Страница 13: ... Generator Cleaning 6 2 Periodic Inspection 6 2 Fuse Replacement 6 3 Chapter 7 Troubleshooting Recommended Equipment for Troubleshooting 7 2 Troubleshooting the Generator 7 2 Inspecting the Generator 7 2 Inspecting the Receptacles 7 3 Understanding Error Codes and Audio Tones 7 4 Correcting Common Problems 7 7 Chapter 8 Repair Policy and Procedures Responsibility of the Manufacturer 8 2 Returning ...

Страница 14: ... Block 9 12 High Voltage Relay Circuit 9 13 Printed Circuit Board 1 Main Board PCB Top View 9 14 Printed Circuit Board 2 Main Board PCB Bottom View 9 15 Printed Circuit Board 3 Display Board PCB Top and Bottom View 9 16 Printed Circuit Board 4 High Voltage Relay PCB Top and Bottom Views 9 17 Printed Circuit Board 5 Connector Panel PCB Top and Bottom Views 9 18 Assembly Drawing 1 SurgiStat Final As...

Страница 15: ...owing information Functional Description Generator Description Safety Precaution Read all warnings cautions and instructions provided with this generator before using Read the instructions warnings and cautions provided with electrosurgical accessories before using Specific instructions are not included in this manual ...

Страница 16: ...zed areas Fulguration provides greater control of bleeding in highly vascular tissue over broader tissue surface areas Return Electrode Monitoring System The generator incorporates a return electrode contact quality monitoring system Bovie NEMTM This system determines the type of patient return electrode attached single plate or split plate It also continuously monitors the contact impedance betwe...

Страница 17: ... equipment used to install and test the generator General Warnings Cautions and Notices Warning Use the generator only if the self test has been completed as described Otherwise inaccurate power outputs may result The instrument receptacles on this generator are designed to accept only one instrument at a time Do not attempt to connect more than one instrument at a time into a given receptacle Doi...

Страница 18: ...manufacturer or hospital Cardiology Department for further information when use of electrosurgical appliances is planned for patients with cardiac pacemakers or other implantable devices In some circumstances potential exists for alternate site burns at points of skin contact e g between the arm and the side of the body This occurs when electrosurgical current seeks a path to the patient return el...

Страница 19: ...nnections to the electrosurgical generator before use Ensure that the accessories function as intended Improper connection may result in arcs sparks accessory malfunction or unintended surgical effects When not using active accessories place them in a holster or in a clean dry nonconductive and highly visible area not in contact with the patient Inadvertent contact with the patient may result in b...

Страница 20: ...n cause a fire Use a holster to hold electrosurgical accessories safely away from personnel and flammable materials Fire Explosion Hazard The following substances will contribute to increased fire and explosion hazards in the operating room Flammable substances such as alcohol based skin prepping agents and tinctures Naturally occurring flammable gases which may accumulate in body cavities such as...

Страница 21: ...ment must only be connected to a supply mains with protective earth Electric Shock Hazard Always turn off and unplug the generator before cleaning Fire Hazard Do not use extension cords Fire Hazard For continued protection against fire hazard replace fuses only with fuses of the same type and rating as the original fuse Warning Do not remove any covers or panels exposing the internal components Re...

Страница 22: ...hysicians Warning No modification of this equipment is allowed Precaution Read all warnings precautions and instructions provided with this generator before testing Notice There are no internal user serviceable parts For repairs return the generator to Covidien The generator contains electrostatic sensitive components When repairing the generator work at a static control workstation Wear a groundi...

Страница 23: ...stat Low Power Electrosurgical Generator Service Manual 2 1 Controls Indicators and Receptacles This section describes the front and rear panels including all controls indicators receptacles the fuse drawer and ports ...

Страница 24: ...end Controls Controls for the Cut and Blend modes Pure Cut Blend Power Return Electrode Alarm Foot Control Monopolar Bipolar Cut Coag Desiccate Fulgurate Bipolar SurgiStat Low Power Electrosurgical Generator Pure Cut Blend Power Return Electrode Alarm Foot Control Monopolar Bipolar Cut Coag Desiccate Fulgurate Bipolar SurgiStat Low Power Electrosurgical Generator ...

Страница 25: ...Blend Selector When pressed selects the Blend mode Blend Indicator Illuminates when Blend mode is selected Cut and Blend Power Display watts Indicates the power set for the Pure Cut or Blend mode Cut and Blend Activation Indicator Illuminates when either Pure Cut or Blend mode is activated Cut and Blend Power Control Dial Increases or decreases the Cut or Blend power output in increments of one wa...

Страница 26: ...ccate Selector When pressed selects the Desiccate mode Fulgurate Indicator Illuminates when Fulgurate mode is selected Fulgurate Selector When pressed selects the Fulgurate mode Bipolar Selector When pressed selects the Bipolar mode Pure Cut Blend Power Return Electrode Alarm Foot Control Monopolar Bipolar Cut Coag Desiccate Fulgurate Bipolar SurgiStat Low Power Electrosurgical Generator 7 Coag De...

Страница 27: ...minates when Bipolar mode is selected Coag and Bipolar Power Display watts Indicates the power set for any Coag or Bipolar mode Coag and Bipolar Activation Indicator Illuminates when Desiccate Fulgurate or Bipolar modes are activated Coag and Bipolar Power Control Dial Increases or decreases the Coag or Bipolar power output in increments of one watt ...

Страница 28: ...n Electrode Alarm Indicator Illuminates when the system detects a patient return electrode alarm condition Monopolar Footswitch Control Indicator Illuminates when monopolar foot control is selected Footswitch Control Selector When pressed toggles between monopolar and bipolar foot control Bipolar Footswitch Control Indicator Illuminates when bipolar foot control is selected Pure Cut Blend Power Re...

Страница 29: ...ndard patient return electrode plug Monopolar Footswitching Receptacle Accepts cables or adapters equipped with standard Bovie 12 active plugs Connect footswitching accessories Monopolar Handswitching Receptacle Accepts standard three pin handpieces Connect handswitching accessories Bipolar Receptacle Accepts standard cables for Bipolar handpieces Pure Cut Blend Power Return Electrode Alarm Foot C...

Страница 30: ...olume rotate the knob clockwise Footswitch Receptacle Accepts the E6008 or E6008B monopolar footswitch Use the monopolar footswitch for both monopolar and bipolar activation Use only a Covidien monopolar footswitch with the SurgiStat Low Power Electrosurgical Generator Use of an incompatible footswitch may cause unexpected output Power Cable Receptacle and Fuse Holder Connects a hospital grade pow...

Страница 31: ...ls on the Front Panel Symbols Description Cut Controls Pure cut mode Blend mode Coag Controls Desiccate mode Fulgurate mode Bipolar mode Indicators Split plate patient return electrode Single plate patient return electrode Footswitch on the selector button Power Switch Handpiece Connectors and Symbols Follow instructions for use blue ...

Страница 32: ...ce Manual Symbols on the Front Panel Consult instructions for use Patient return electrode Type CF equipment RF isolated patient connections are isolated from earth at high frequency Monopolar output Caution high voltage Bipolar output Symbols Description F ...

Страница 33: ... Monopolar footswitch Consult instructions for use Read instructions before use WEEE Waste from electrical and electronic equipment Nonionizing radiation Fuse Danger Explosion risk if used with flammable anesthetics Testing agency s certification mark for compliance to electrical safety and electromagnetic compatibility standards CE Marking indicating conformity to product requirements of the Euro...

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Страница 35: ...rator Service Manual 3 1 Technical Specifications All specifications are nominal and subject to change without notice A specification referred to as typical is within 20 of a stated value at room temperature 77 F 25 C and a nominal input power voltage ...

Страница 36: ...m power settings and rated load conditions Pure Cut 120 watt 500 Ω load the generator is suitable for activation times of 10 seconds on 30 seconds off for one hour Dimensions and Weight 100 240 Volt Mains line frequency range nominal 50 60 Hz Power consumption 3 A Fuses 2 3 15 A Slow Blow Width 10 25 26 cm Depth 12 30 5 cm Height 6 15 2 cm Weight 9 lb 4 kg ...

Страница 37: ...c pressure 70 kPa to 106 kPa Warm up time If transported or stored at temperatures outside the operating temperature range allow one hour for the generator to reach room temperature before use Ambient temperature range 40 to 158 F 40 to 70 C Relative humidity 10 to 100 including condensation Atmospheric pressure 50 kPa to 106 kPa Ambient temperature range 68 to 86 F 10 to 30 C Relative humidity 10...

Страница 38: ...dible and visible alarms when it senses no return electrode Volume adjustable 40 to 65 dB Frequency Cut 610 Hz Blend 610 Hz Desiccation 910 Hz Fulguration 910 Hz Bipolar 910 Hz Duration Continuous while the generator is activated Volume not adjustable 70 dB 5 dB Frequency 2 kHz for 0 5 second then 1 kHz for 0 5 second Duration 2 seconds Single Plate Set resistance 0 Ω to 5 Ω 3 Ω Continuous measure...

Страница 39: ...single or split plate indicator will illuminate The system measures the return electrode sensing current according to IEC 60601 1 Low Frequency 50 60 Hz Leakage Current High Frequency RF Leakage Current Split Plate Set resistance 10 Ω 5 Ω to 135 Ω 10 Ω Continuous measurement Once the system establishes the split plate electrode resistance an increase of 40 in resistance will cause an alarm When th...

Страница 40: ... protection against electric shock particularly regarding allowable leakage currents It is type CF isolated floating output and may be used for procedures involving the heart Drip Proof IEC 60601 2 2 The SurgiStat Low Power Electrosurgical Generator enclosure is constructed so that liquid spillage in normal use does not wet electrical insulation or other components which when wet are likely to adv...

Страница 41: ...s regarding electromagnetic compatibility Notice The SurgiStat Low Power Electrosurgical Generator requires special precautions regarding EMC and needs to be installed and put into service according to the EMC information provided in the SurgiStat Low Power Electrosurgical Generator Service Manual Portable and mobile RF communications equipment can affect the SurgiStat Low Power Electrosurgical Ge...

Страница 42: ...t and the SurgiStat Low Power Electrosurgical Generator The SurgiStat is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled The customer or the user of the SurgiStat can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment transmitters and the SurgiStat as recommended bel...

Страница 43: ...ions IEC 61000 3 2 Class A Voltage fluctuations flicker emissions IEC 61000 3 3 Complies Guidance and manufacturer s declaration electromagnetic immunity The SurgiStat is intended for use in the electromagnetic environment listed below The customer or the user of the SurgiStat should assure that it is used in such an environment Immunity test IEC 60601 test level Compliance level Electromagnetic e...

Страница 44: ... for 5 sec Mains power quality should be that of a typical commercial or hospital environment If the user of the SurgiStat requires continued operation during power mains interruptions it is recommended that the SurgiStat be powered from an uninterruptible power supply ora battery Power frequency 50 60Hz magnetic field IEC 61000 4 8 3A m 3 A m Power frequency magnetic fields should be at levels ch...

Страница 45: ...ed separation distance calculated from the equation applicable to the frequency of the transmitter Recommended separation distance Radiated RF IEC 61000 4 3 3 V m 80 kHz to 2 5 GHz 3 V m E1 80 MHz to 800 MHz 800 MHz to 2 5 GHz where P is the maximum output power rating of the transmitter in watts W according to the transmitter manufacturer and d is the recommended separation distance in metres m F...

Страница 46: ...y with accuracy To assess the electromagnetic environment due to fixed RF transmitters an electromagnetic site survey should be considered If the measured field strength in the location which the SurgiStat is used exceeds the applicable RF compliance level above the SurgiStat should be observed to verify normal operation If abnormal performance is observed additional measures may be necessary such...

Страница 47: ... Output Power Curves Output Power Curves The curves that follow depict the changes for each mode at specific power settings All measurements were taken at the nominal input power voltage used for calibration Output voltage Vpeak vs power setting Cut Coag Voltage Vpeak Power Setting watts 1 2 ...

Страница 48: ...surgical Generator Service Manual Output Power Curves Output voltage Vpeak vs power setting Bipolar Voltage Vpeak Power Setting watts Output power vs power settings for all modes Output Power watts Power Setting of Total Power 1 2 1 2 ...

Страница 49: ...ves Output power vs impedance for Cut mode Output Power watts Load Resistance ohms Output power vs impedance for Blend mode Output Power watts Load Resistance ohms 0 20 40 60 80 100 120 140 0 500 1000 1500 2000 2500 3000 60W 120W 1 2 0 10 20 30 40 50 60 70 80 90 100 0 500 1000 1500 2000 2500 3000 45W 90W 1 2 ...

Страница 50: ... vs impedance for Desiccate mode Output Power watts Load Resistance ohms Output power vs impedance for Fulgurate mode Output Power watts Load Resistance ohms 0 10 20 30 40 50 60 70 80 90 0 500 1000 1500 2000 2500 3000 40W 80W 1 2 1 2 0 5 10 15 20 25 30 35 40 45 0 500 1000 1500 2000 2500 3000 20W 40W ...

Страница 51: ... 17 Reference Output Waveforms Output power vs impedance for Bipolar mode Output Power watts Load Resistance ohms Reference Output Waveforms The following are the output waveforms as viewed on an oscilloscope Cut Mode Waveform 0 5 10 15 20 25 30 35 0 250 500 750 1000 1250 1500 15W 30W 1 2 ...

Страница 52: ...3 18 SurgiStat Low Power Electrosurgical Generator Service Manual Reference Output Waveforms Blend Mode Waveform Desiccate Mode Waveform ...

Страница 53: ...Technical Specifications SurgiStat Low Power Electrosurgical Generator Service Manual 3 19 Reference Output Waveforms Fulgurate Mode Waveform Bipolar Mode Waveform ...

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Страница 55: ... Low Power Electrosurgical Generator Service Manual 4 1 Theory of Operation This section contains the following information Block diagram Functional overview of key circuits System logic Control signal inputs and outputs ...

Страница 56: ...e unit s capacitors providing the lowest voltage required for proper operation of the unit The PFC also regulates the universal input of 100 to 240 volts that power the unit High Voltage DC Supply The generator incorporates a high voltage power supply to generate the RF output power The high voltage power supply delivers an unregulated DC output for the RF output The nominal DC voltage from the hi...

Страница 57: ...patient return electrode is attached to the patient When connecting a single plate patient return electrode to the generator the pad sensing module detects if the resistance is below 5 Ω If it is below 5 Ω the SurgiStat displays the green single plate LED on the front of the generator When connecting a split plate patient return electrode to a patient and the pad sensing module detects a resistanc...

Страница 58: ...e front panel allow mode selection High voltage relays switch and isolate the four monopolar configurations Monopolar Bipolar Select Relays The monopolar bipolar select relays change which output transformer is used to deliver the RF output to the patient Controls and Indicators The SurgiStat generator uses the following controls and indicators Digital PWM Circuit The digital Pulse Width Modulatio...

Страница 59: ...Name Description TEMP This is an input signal from the temperature sense circuit that informs the system logic of the internal temperature of the generator AUDIO_DRV This is an output signal from the system logic that generates the activation tones for all modes of operation A 610 Hz square wave is generated when the cut or blend mode is activated A 910 Hz square wave is generated when the desicca...

Страница 60: ...Hand B refers to the Coag button on the handpiece This signal is generated by a colpitts oscillator located on the main board SENS_HAND_A This is an input signal that informs the Hand A request sense circuit Hand A refers to the Cut button on the handpiece This signal is generated by a colpitts oscillator located on the main board SENS_FOOT_B This is an input signal that informs the Foot B request...

Страница 61: ...gical Generator Service Manual 5 1 Generator Operation This section covers the following topics Inspecting the generator and accessories Service personnel safety Installation and placement Functional operational checks Operating the generator ...

Страница 62: ...generator before cleaning Fire Hazard Do not use extension cords Patient Safety Use the generator only if the self test has been completed as described Otherwise inaccurate power outputs may result The instrument receptacles on this generator are designed to accept only one instrument at a time Do not attempt to connect more than one instrument at a time into a given receptacle Doing so will cause...

Страница 63: ...ecommends the use of split return electrodes and Covidien generators with a contact quality monitoring system Precaution Do not stack equipment on top of the generator or place the generator on top of electrical equipment These configurations are unstable and or do not allow adequate cooling Provide as much distance as possible between the electrosurgical generator and other electronic equipment s...

Страница 64: ...ontrols and connectors How to Set Up and Start the SurgiStat 1 Verify that the power switch is in the Off O position and that no accessories are connected to the generator 2 Connect a hospital grade power cable to the AC power cable receptacle on the back of the generator then to a properly grounded wall outlet 3 Connect a two pedal footswitch to the matching footswitch receptacle on the back of t...

Страница 65: ... to maximize patient safety Using a patient return electrode without the safety feature may result in a patient burn Refer to the patient electrode s instructions for use for recommendations for site selection and placement When using metal plate return electrodes use a conductive gel specifically designed for electrosurgery Select a return electrode site with good blood flow While a properly appl...

Страница 66: ...r foot control by pressing the Footswitch Control Selector until the Monopolar Footswitch Control Indicator illuminates 2 Connect a single plate patient return electrode to the return electrode receptacle of the generator Verify that the green single plate patient return electrode indicator illuminates 3 Press the Cut pedal on the footswitch Verify that the Cut and Blend Activation Indicator illum...

Страница 67: ... Connect a Bipolar cable to the Bipolar receptacle 5 Connect the compatible footswitch to the Monopolar Footswitch receptacle on the rear of the unit The receptacle works for both Monopolar and Bipolar footswitching activation 6 Connect a forceps instrument to the Bipolar cable Checking the Bipolar Mode with Footswitch 1 Select the Bipolar mode by pressing the Bipolar mode switch on the front pane...

Страница 68: ...e the desired surgical effect Use the active electrode only for the minimum time necessary in order to lessen the possibility of unintended burn injury Pediatric applications and or procedures performed on small anatomic structures may require reduced power settings The higher the current flow and the longer the current is applied the greater the possibility of unintended thermal damage to tissue ...

Страница 69: ...or unintended surgical effects When not using active accessories place them in a holster or in a clean dry non conductive and highly visible area not in contact with the patient Inadvertent contact with the patient may result in burns Studies have shown that smoke generated during electrosurgical procedures can be potentially harmful to patients and the surgical team These studies recommend adequa...

Страница 70: ...ar Operation To activate Press this On this device Pure Cut or Blend modes Yellow button Handswitching pencil Yellow or Cut pedal Footswitch Desiccate or Fulgurate modes Blue button Handswitching pencil Blue or Coag pedal Footswitch Bipolar Operation Bipolar mode Blue Coag or yellow Cut pedal Footswitch ...

Страница 71: ...Chapter 6 SurgiStat Low Power Electrosurgical Generator Service Manual 6 1 Maintaining the Generator This section covers the following topics Cleaning Periodic inspection Fuse replacement ...

Страница 72: ... procedures approved by your institution or use a validated infection control procedure Periodic Inspection Every six months visually inspect the generator for signs of wear or damage In particular look for any of the following problems Damage to the power cord Damage to the power cable receptacle Obvious damage to the unit Damage to any receptacle Accumulation of lint or debris in or around the u...

Страница 73: ...om the power cable receptacle on the rear panel 3 To release the fuse drawer insert a small flathead screwdriver into the slot on the drawer below the power cord receptacle and slide the drawer out Fuse Drawer 4 Remove the two fuses T3 15AL250V and replace them with new fuses with the same values 5 Insert the fuse drawer into the power cable receptacle Use the following fuses SurgiStat 100 240 V V...

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Страница 75: ...Chapter 7 SurgiStat Low Power Electrosurgical Generator Service Manual 7 1 Troubleshooting This chapter includes error code descriptions and actions to take to resolve them ...

Страница 76: ...functioning properly use the information in this section to perform the following activities Identify and correct the malfunction If the system displayed an error code take the appropriate action s to correct the error condition Inspecting the Generator If the generator malfunctions check for obvious conditions that may have caused the problem 1 Check the generator for visible signs of physical da...

Страница 77: ...olar receptacle on the front of the generator Check for a secure fit If the bipolar receptacle is damaged contact your Covidien Service Center 7 Check the monopolar receptacle on the front of the generator for obstruction or damage 8 Insert a handswitching pencil into the monopolar handpiece receptacle on the front of the generator Check for a secure fit If the monopolar handpiece receptacle is da...

Страница 78: ... The SurgiStat generator includes automatic continual self diagnostics If the diagnostics detect an error the system displays an error code sounds an audible tone and deactivates the output power Any errors detected will shut down the RF output power Most error codes result from faults in accessories attached to the generator The following table lists the error codes describes the error and recomm...

Страница 79: ... If the error code reappears record the number and contact your Covidien Service Center F2 Simultaneous activation error Cut and Coag buttons activated simultaneously pencil or footswitch The generator does not allow simultaneous activation of the Cut and Desiccation modes Release either the Cut or Coag button on the handpiece or the Cut or Coag pedal on the footswitch F3 Foot activation error Foo...

Страница 80: ...art the generator 4 If the error code reappears record the number and contact your Covidien Service Center E8 Connector sense error The generator shall monitor the connection of the main cable between the main and display boards 1 If the cable is disconnected an E8 error will be displayed 2 The generator cannot be activated while the error condition is present 3 Restart the generator to remove the...

Страница 81: ...wer is open or fuses blown 1 Close the fuse drawer If necessary replace the fuse s 2 If a problem persists contact your Covidien Service Center Loose or disconnected internal cables Contact your Covidien Service Center Faulty power entry module or connections Faulty power switch Generator is on but did not complete the self test Alarm condition exists Check the display for an error code Note the n...

Страница 82: ...tching instrument 1 Turn off the generator Check and correct all accessory connections 2 Turn on the generator 3 Replace the accessory if it continues to malfunction Display board malfunction Contact your Covidien Service Center Power set too low Increase the power setting An error condition exists 1 Check the Cut and Coag displays for an error code number 2 Note the number and refer to the error ...

Страница 83: ...erencewithother devices only when generator is activated Metal to metal sparking Check all connections to the generator patient return electrode and accessories High settings used for fulguration Use lower power settings for fulguration or select the Desiccate mode Electrically inconsistent ground wires in the operating room Verify that all ground wires are as short as possible and go to the same ...

Страница 84: ...t return electrode does not pass through the vicinity of the heart or the site where the pacemaker is implanted 3 Always monitor patients with pacemakers during surgery and keep a defibrillator available 4 Consult the pacemaker manufacturer or hospital 5 Contact the hospital s Cardiology Department for further information when use of electrosurgical appliances is planned on patients with cardiac p...

Страница 85: ...w Power Electrosurgical Generator Service Manual 8 1 Repair Policy and Procedures This chapter contains the following information The manufacturer s responsibility Returning the generator for service Finding service centers ...

Страница 86: ...ent use is in accordance with the Covidien instructions for use For warranty information refer to the Limited Warranty in the Preface Returning the Generator for Service Before you return the SurgiStat call your Covidien representative for assistance If instructed to send the generator to Covidien first obtain a Return Authorization Number Then clean the SurgiStat and ship it to Covidien for servi...

Страница 87: ... Authorization Number on page 8 2 2 Be sure the generator is completely dry before you pack it for shipment Package it in its original shipping container If the original shipping container is not available request one when obtaining your Return Authorization Number 3 Ship the generator prepaid to the Covidien Service Center Service Centers For a complete list of service centers worldwide please re...

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Страница 89: ...r Electrosurgical Generator Service Manual 9 1 Board Drawings and Schematics This chapter contains the assembly drawings and schematics for the following printed circuit boards Main board Display board Relay board Connector board ...

Страница 90: ...9 2 SurgiStat Low Power Electrosurgical Generator Service Manual Main Board Top Level Block Main Board Top Level Block ...

Страница 91: ...SurgiStat Low Power Electrosurgical Generator Service Manual 9 3 Main Board RF Amplifier Circuit Board Drawings and Schematics Main Board RF Amplifier Circuit ...

Страница 92: ...9 4 SurgiStat Low Power Electrosurgical Generator Service Manual Main Board Power Supply Block Main Board Power Supply Block ...

Страница 93: ...SurgiStat Low Power Electrosurgical Generator Service Manual 9 5 Main Board Isolated Power Factor Corrector Circuit Board Drawings and Schematics Main Board Isolated Power Factor Corrector Circuit ...

Страница 94: ...9 6 SurgiStat Low Power Electrosurgical Generator Service Manual Main Board Logic Power Supply Circuit Main Board Logic Power Supply Circuit ...

Страница 95: ...SurgiStat Low Power Electrosurgical Generator Service Manual 9 7 Main Board Audio Circuit Board Drawings and Schematics Main Board Audio Circuit ...

Страница 96: ...9 8 SurgiStat Low Power Electrosurgical Generator Service Manual Display Board Top Level Block Display Board Top Level Block ...

Страница 97: ...SurgiStat Low Power Electrosurgical Generator Service Manual 9 9 Display Board Diagnostic Circuit Board Drawings and Schematics Display Board Diagnostic Circuit ...

Страница 98: ...9 10 SurgiStat Low Power Electrosurgical Generator Service Manual Display Board Neutral Electrode Monitoring Circuit Display Board Neutral Electrode Monitoring Circuit ...

Страница 99: ...SurgiStat Low Power Electrosurgical Generator Service Manual 9 11 Display Board Control Logic Circuit Board Drawings and Schematics Display Board Control Logic Circuit ...

Страница 100: ...9 12 SurgiStat Low Power Electrosurgical Generator Service Manual Connector Panel Block Connector Panel Block ...

Страница 101: ...SurgiStat Low Power Electrosurgical Generator Service Manual 9 13 High Voltage Relay Circuit Board Drawings and Schematics High Voltage Relay Circuit ...

Страница 102: ...9 14 SurgiStat Low Power Electrosurgical Generator Service Manual Printed Circuit Board 1 Main Board PCB Top View Printed Circuit Board 1 Main Board PCB Top View Top View ...

Страница 103: ...iStat Low Power Electrosurgical Generator Service Manual 9 15 Printed Circuit Board 2 Main Board PCB Bottom View Board Drawings and Schematics Printed Circuit Board 2 Main Board PCB Bottom View Bottom View ...

Страница 104: ...9 16 SurgiStat Low Power Electrosurgical Generator Service Manual Printed Circuit Board 3 Display Board PCB Top and Bottom View Printed Circuit Board 3 Display Board PCB Top and Bottom View Top Bottom ...

Страница 105: ...Electrosurgical Generator Service Manual 9 17 Printed Circuit Board 4 High Voltage Relay PCB Top and Bottom Views Board Drawings and Schematics Printed Circuit Board 4 High Voltage Relay PCB Top and Bottom Views Top Bottom ...

Страница 106: ...18 SurgiStat Low Power Electrosurgical Generator Service Manual Printed Circuit Board 5 Connector Panel PCB Top and Bottom Views Printed Circuit Board 5 Connector Panel PCB Top and Bottom Views Top Bottom ...

Страница 107: ...SurgiStat Low Power Electrosurgical Generator Service Manual 9 19 Assembly Drawing 1 SurgiStat Final Assembly Board Drawings and Schematics Assembly Drawing 1 SurgiStat Final Assembly ...

Страница 108: ...9 20 SurgiStat Low Power Electrosurgical Generator Service Manual Assembly Drawing 2 SurgiStat Front Panel Assembly Assembly Drawing 2 SurgiStat Front Panel Assembly ...

Страница 109: ...SurgiStat Low Power Electrosurgical Generator Service Manual 9 21 Assembly Drawing 3 SurgiStat Back Panel Assembly Board Drawings and Schematics Assembly Drawing 3 SurgiStat Back Panel Assembly ...

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Страница 112: ...ademarks of a Covidien company brands are trademarks of their respective owner May be covered by U S Patents www covidien com patents 2014 Covidien Made in USA Printed in USA Manufactured for Covidien llc 15 Hampshire Street Mansfield MA 02048 USA Covidien Ireland Limited IDA Business Technology Park Tullamore www covidien com 1 303 530 2300 T 1 800 255 8522 T REV 0 2015 0086 ...

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