ECG, Respiration and SpO2 Transmitter LX-7230N Ver.02 Operation Manual LX-7230N TYPE:GHz Before using the product, please read this manual thoroughly. Store this manual where it can be always referred to.
This operation manual is for the LX-7230 Ver. 02. CA UTION Federal Law restricts this device to sale by or on the order of a physician. CA UTION Users are advised to periodically contact the FCC or specified frequency coordinator and determine if other or your transmitter frequencies that may cause interference.
Thank you for purchasing this product. Before using this product, read this operation manual thoroughly for correct handling and operation. Safety Precautions Read the “Safety Precautions” thoroughly before use to ensure correct and safe use of the product. Make sure to follow the precautions indicated below, as these are important messages related to safety. DANGER Failure to follow this message may cause immediate threat of death or serious injury.
Graphic Symbols Refer to the following symbols indicated on the LX-7230N for their meanings. Symbols indicated on the main unit Symbol Description Caution: Refer To Accompanying Documents Indicates the need to refer to the related accompanying documents before operation. Type CF Applied Part with Defibrillation-Proof Indicates that the degree of protection against electric shock is Type CF Applied Part with defibrillation-proof. No Alarm Function Indicates no alarm function.
Precautions for Safe Operation of Medical Electrical Equipment Cautions described here are regarding the general instructions for safety use to the patient and users. As for cautions about the LX-7230N, please refer to the following pages. CAUTION 1. 2. 3. 4. Users should have a thorough knowledge of the operation before using this equipment. Pay attention to the following when installing or storing the equipment. Do not install or store in an area where the equipment will be subject to splashing water.
5. 6. 7. 8. 9. After using the equipment, verify the following items. Make sure to turn off the power of the equipment. When unplugging the cables, do not apply excessive force on the cable and pull from its connector. Clean the accessories and cables, and keep them together in one place. Keep the equipment clean to ensure proper operation for the next use. Make sure to remove the batteries if the equipment is not used for a long time.
Precautions about Magnetic Resonance Imaging (MRI) WARNING Do not operate this equipment in magnetic resonance imaging (MRI) environments. When conducting MRI test, remove the electrodes and sensors connected to the patient (test subject). The local heating caused by the induced electromotive force may cause burn injury to the patient (subject). For details, refer to the operation manual for the MRI testing device.
Precautions about the Pacemaker WARNING Minute ventilation rate-adaptive implantable pacemakers can occasionally interact with certain cardiac monitoring and diagnostic equipment, causing the pacemakers to pace at their maximum programmed rate. The cardiac monitoring and diagnostic equipment may possibly send wrong information. If such event occurs, disconnect the cardiac monitoring and diagnostic equipment, or follow the procedures described in the operation manual of the pacemaker.
Precautions about Waterproof CAUTION Replace the “Battery Compartment Lid” of the LX-7230N regularly to keep the performance of waterproof. If not regularly replaced, the quality of the lid will deteriorate and cannot keep the waterproof performance. For details about the regular replacement, contact your local Fukuda Denshi service representative. The lid may be damaged from high impact. If the LX-7230N is dropped or is subjected to a high impact, make sure that the lid is not damaged.
Precautions about SpO2 WARNING During SpO2 monitoring, always use the probe (sensor) specified by Fukuda Denshi. If any other probe (sensor) is used, a high temperature rise of the probe (sensor) may place the patient in danger of burns in the worst case. When the SpO2 probe (sensor) is in a connector-off condition, the SpO2 alarm will not be generated on the receiving monitor. Make sure that the SpO2 probe (sensor) is securely connected.
Precautions about Output Signal WARNING Do not use the output signal of the monitor that receives radio wave signal from the LX-7230N as the trigger signal for IABP, MRI echocardiographic, or defibrillator for the following reasons. It may lead to a delay of operating timing due to the delay time of waveform transmission. A trigger signal unrelated to the heart rate may be generated due to the interfusion of spike noise at weak electric field.
Precautions about Disposing of Equipment, Accessories, or Components CAUTION When disposing of the equipment, accessories, or components, use an industrial waste distributor. Do not dispose of as ordinary waste. Used disposal items (ECG electrodes, etc.) shall be discarded as medical waste. Precautions about Disposing of Battery CAUTION Obey the local municipal rule to dispose the used dry cell battery.
based on destination country’s radio law). When telemetry has already been installed and been used, radio format, frequency, and antenna power are required to be examined to prevent interference. When using telemetry, which requires zone location, the Institution is to set up the zones as an operation unit for each transmitter to prevent electronic interference between telemetry throughout the Institution.
Electromagnetic Compatibility The performance of this equipment under electromagnetic environment complies with IEC 60601-1-2 (2007). Precautions for Safe Operation under Electromagnetic Influence CAUTION If any sorts of electromagnetic wave, magnetic field, or static electricity exist around the equipment, noise interference or malfunction of the equipment may occur. If any unintended malfunction or noise occurs during monitoring, check the magnetic influence and take appropriate countermeasures.
EMC Guidance This equipment complies with IEC 60601-1-2 (2007). However, if portable transmitter or wireless LAN equipment is used extremely nearby, the electromagnetic influence may largely exceed the compliance level and may cause unexpected phenomenon such as noise interference on the waveform, etc. Therefore, this equipment should be used in a location specified by each medical institution.
Compliance to the Electromagnetic Immunity (1) The LX-7230N is intended for use in the electromagnetic environment specified below. The customer or the user of the LX-7230N should assure that it is used in such an environment. Immunity Test Electrostatic Discharge (ESD) IEC 61000-4-2 Electrical fast transient/burst IEC 61000-4-4 Surge IEC 61000-4-5 Voltage dips, short interruptions and voltage variations on power supply input lines.
Compliance to the Electromagnetic Immunity (2) The LX-7230N is intended for use in the electromagnetic environment specified below. The customer or the user of the LX-7230N should assure that it is used in such an environment.
Recommended Separation Distances between Portable and Mobile RF Communications Equipment and the LX-7230N The LX-7230N is intended for use in an environment in which radiated RF disturbances are controlled. The customer or the user of the LX-7230N can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the LX-7230N as recommended below, according to the maximum output power of the communications equipment.
CONTENTS Safety Precautions ..................................................................................... i Precaution from Fukuda Denshi....................................................... i Graphic Symbols..............................................................................ii Precautions for Safe Operation of Medical Electrical Equipment .... iii Non-Explosion Proof .......................................................................
8. Operation ........................................................................................... 47 Changing Setup ....................................................................... 47 Restarting the LCD display ...................................................... 51 Pressing the EVENT button ..................................................... 51 9. Other Setting Items ............................................................................ 53 Changing the Time Constant ................
1. General Description The LX-7230N is a radio telemetry transmitter designed to measure the ECG, respiration waveform, SpO2 (functional oxygen saturation of arterial hemoglobin), pulse waveform with two “AA” size (“LR06” size) alkaline batteries. Information such as ECG measurements, respiration waveform, SpO2 measurements, pulse waveform, battery level, and the conditions of the ECG electrodes and SpO2 probe (sensor) are displayed on the LCD of the front panel.
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2. Names of Parts and Their Functions Neck Strap Hole Attaches the neck strap. ECG/RESP Input Connector (Type CF Applied Part) Connects the ECG lead cable to measure ECG and respiration waveform. Refer to “Safety Precautions” in this manual’s preface. SpO2 Input Connector Refer to “Safety Precautions” in this Connects the SpO2 probe (sensor). manual’s preface. Channel Number Label Indicates transmitter channel number. LCD Displays measurement waveform and transmitter information.
2. Names of Parts and Their Functions Battery Lid Lock Lever Uses to open/lock the battery compartment lid. Refer to “Safety Precautions” in this manual’s preface. Battery Compartment Lid This is the lid for the battery compartment. Make sure to close it when the transmitter is operated.
3. Preparation 1) Installing the Batteries The LX-7230N functions with two "AA" size (“LR06” size) alkaline batteries. With new batteries, the LX-7230N is capable of the following operation. LX-7230N: approximately 2.5 days (However, continuous operating time may be shorter than the above mentioned time depending on the application of the SpO2 probe (sensor).) WARNING Unplug the ECG lead cable when the battery compartment lid is opened.
3. Preparation Lift the lock lever to open the battery compartment lid as shown in the left picture. Install new batteries according to the polarity indication inside the battery compartment. Make sure to first Insert the battery into the battery compartment from the minus (-) terminal as shown in the left picture. Hook the lock lever on the projection from the body and press it down until it is horizontal (flat position).
3. Preparation 2) Operating Power Switch Turning the power switch to “ON” Rotate the power switch to the left until it clicks. LCD screen turns ON and measurement starts. Regarding the LCD screen, refer to page 35 (7. Measurement). The screen automatically turns itself OFF after 180 seconds. After the power is turned ON, make sure to check the remaining battery level on the LCD screen. Refer to the following symbol about the remaining battery level.
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4. ECG Monitoring When the transmitter is used without the SpO2 probe (sensor), it will measure only ECG and respiration. CAUTION When using the transmitter with only the ECG lead cable, SpO2 measurements on the receiving monitor shall be turned off to prevent an erroneous alarm. Connecting the ECG Lead Cable and Electrodes The optional ECG lead cables for LX-7230N are as follows. ECG Lead Cables AHA color code: Item No. Applicable Lead CMT-01HTH-0.8DA Limb Lead (1CH) CMT-02HTH-0.
4. ECG Monitoring The relations between the attached electrode positions and lead method are as follows. Attach the electrodes to monitor proper waveform. For 3-electrode lead cable For AHA color code electrode position (No. CMT-01HTH-0.8DA, CMT-01FTH-0.8DA) White (RA) Black (LA) Red (LL) Standard Limb leads Standard Limb leads can be selected from lead I, lead II, or lead III under the setting of the equipment. Refer to “8. Operation Changing Setup <>” in page 47.
4. ECG Monitoring For 5-electrode (Chest) lead cable For AHA color code electrode position (No. CMT-03HTH-0.8DA, CMT-03FTH0.8DA) White (RA) Green (RL) Brown (V) Black (LA) Red (LL) Standard Limb lead and Chest lead One limb lead and one chest lead (Brown) measurements are available. Standard Limb leads can be selected from lead I, lead II, or lead III under the setting of the equipment. The chest lead waveform is measured from the chest lead (Brown) positioned on the chest. Refer to “8.
4. ECG Monitoring Attaching the Electrodes CAUTION Always use the same type of electrodes. If different types of electrodes are used at the same time, the difference between the polarization potential from each electrode may interfere with monitoring. Do not reuse the disposable electrodes. It is intended for single patient use only. Clean the electrode sites with alcohol wipes or other skin preparation. If necessary, shave the electrode sites to remove excessive hair. Peel off the disposable electrode.
4. ECG Monitoring Connecting the ECG Lead Cable to the LX-7230N Insert the ECG lead cable firmly into the ECG/RESP input connector matching the transmitter’s connector guide and the direction of the notched part on the connector.
4. ECG Monitoring CAUTION There are some cases when pacemaker pulse cannot be detected depending on the pacemaker type, pulse voltage, pulse width, electrode lead type (unipolar, bipolar), electrode placement, or lead method which causes the pacemaker pulse amplitude to decrease and disables pacemaker pulse detection. If signals similar to a pacemaker pulse are present, such as electric blanket noise or excessive AC frequency noise, these may be erroneously detected and displayed as a pacemaker pulse.
5. Respiration Monitoring Follow the preparation of “4.ECG Monitoring” to allow the respiration monitoring. This respiration monitoring is performed with impedance method. The ECG electrodes are also used for detecting the respiration. Each lead cable specifies the electrodes to detect the respiration. For 3-electrode and 5electrode (chest) lead cable, the electrodes to detect the respiration are fixed as follows. Even if lead method is switched, they are no changes.
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6. SpO2 Monitoring When the transmitter is used without the ECG lead cable, it will measure only SpO2. WARNING When the SpO2 probe (sensor) is in a connector-off condition, the SpO2 alarm will not be generated on the receiving monitor. Make sure that the SpO2 probe (sensor) is securely connected. If the SpO2 waveform/numeric data is not displayed, check the patient’s condition and pay attention not to miss the connector-off condition.
6. SpO2 Monitoring SpO2 Monitoring ® LX-7230N, which has a built-in Nellcor SpO2 module, is described in this section. The optional SpO2 sensors available for LX-7230N are as follows. The following table shows applicable patient and proper site for each SpO 2 sensor. Select the proper one depending on the purpose and intended use.
6. SpO2 Monitoring CAUTION SpO2 sensors are not waterproof. Keep away from liquids. Do not pick up the equipment pulling the sensor or cable part. It may get disconnected from the equipment and the equipment may be dropped. A message is displayed when the SpO2 sensor is disconnected from the equipment. A message is displayed when the equipment detects that the SpO2 sensor is disconnected from the patient. Properly attach the SpO2 sensor to the patient. Do not reuse the single-use SpO2 sensor.
6. SpO2 Monitoring Applying the OxiMax® MAX-I sensor ® This Nellcor adhesive sensor, model MAX-I, is indicated for continuous noninvasive arterial oxygen saturation and pulse rate monitoring and can be reused on the same patient as long as the adhesive tape attaches without slippage. 1. Remove the plastic backing from the MAX-I and locate the two transparent windows on the adhesive side. Windows cover optical components.
6. SpO2 Monitoring Reapplication 1. The MAX-I can be reused on the same patient as long as the adhesive tape attaches without slippage. 2. Enclosed adhesive “dots” are provided for reapplication. Place a transparent dot over each window as shown, and then remove the protective paper that covers each dot (Figure (5)). The sensor is now ready to be reapplied to the same patient. For the reapplication, do not remove the previous adhesive dot, but place the enclosed adhesive dot over it.
6. SpO2 Monitoring Applying the OxiMax® MAX-P/ MAX-A/ MAX-AL sensor ® This Nellcor adhesive sensor, model MAX-P/ MAX-A/ MAX-AL, is indicated for continuous noninvasive arterial oxygen saturation and pulse rate monitoring and can be reused on the same patient as long as the adhesive tape attaches without slippage. 1. Remove the plastic backing from the MAX-P/MAX-A/MAX-AL and locate the transparent windows (a) on the adhesive side. Windows cover optical components (Figure (1)).
6. SpO2 Monitoring CAUTION Precautions for Use of adhesive sensors, MAX-P/MAX-A/MAX-AL Do not reuse the sensor on other patients. This is a sterilized product and it is intended for single patient use only. Circulation distal on the sensor site should be checked routinely. The site must be inspected every 8 hours to ensure adhesion, skin integrity, and correct optical alignment.
6. SpO2 Monitoring Applying DURASENSOR® DS-100A ® This Nellcor reusable sensor, model DS-100A, is indicated for continuous noninvasive arterial oxygen saturation and pulse rate monitoring for patients weighing greater than 40 kg. The DS-100A is contraindicated for use on active patients or for prolonged use. 1. 2. 3. Place the index finger over the sensor window of the DS-100A with the finger tip against the stop (Figure (1)).
6. SpO2 Monitoring CAUTION Precautions for Use of reusable sensors, DS-100A Do not apply the sensor on the thumb or toe. It may cause incorrect measurements. Do not use the sensor for long-term monitoring. Circulation distal on the sensor site should be checked routinely. Reusable sensors must be moved to a new site at least every 4 hours.
6. SpO2 Monitoring Applying the OxiMax® MAX-R sensor This Nellcor® adhesive sensor, model MAX-R, is indicated for continuous noninvasive arterial oxygen saturation and pulse rate monitoring. The MAX-R is designed for use only on the nose. Use this sensor when finger pulsatile flow is inadequate, or monitoring a finger/toe is not possible. 1. 2. 3. 4. 5. 6. Clean the bridge of the patient’s nose with the contents of the enclosed acetone/alcohol ampule to remove skin oils.
6. SpO2 Monitoring CAUTION Precautions for Use of adhesive sensor, MAX-R Do not reuse the sensor on other patients. This is a sterilized product and it is intended for single patient use only. Circulation distal on the sensor site should be checked routinely. The site must be inspected every 8 hours to ensure adhesion, skin integrity, and correct sensor site. If skin integrity changes, move the sensor to another site Do not use the sensor on patients who exhibit allergic reactions to the adhesive tape.
6. SpO2 Monitoring Applying the OxiMax® MAX-N sensor This Nellcor® adhesive sensor, model MAX-N, is indicated for continuous noninvasive arterial oxygen saturation and pulse rate monitoring and can be reused on the same patient as long as the adhesive tape attaches without slippage. 1. Remove the plastic backing from the MAX-N and locate the two transparent windows on the adhesive side. Windows cover optical components.
6. SpO2 Monitoring NOTE If the sensor does not track the pulse reliably, it may be incorrectly positioned - or the sensor site may be excessively wrinkled, or too deeply pigmented or otherwise deeply colored (for example, as a result of externally applied coloring such as dye or pigmented cream) to permit appropriate light transmission. If any of these situations occurs, reposition the sensor in a different location or choose an alternate Nellcor sensor to use on a different site. Reapplication 1.
6. SpO2 Monitoring CAUTION Precautions for Use of adhesive sensor, MAX-N Do not reuse the sensor on other patients. This is a sterilized product and it is intended for single patient use only. Circulation distal on the sensor site should be checked routinely. The site must be inspected every 8 hours to ensure adhesion, skin integrity, and correct optical alignment. If skin integrity changes, move the sensor to another site.
6. SpO2 Monitoring Applying the OXIMAX® MAX-FAST sensor This is an adhesive sensor, model MAX-FAST, for continuous noninvasive arterial oxygen saturation and pulse rate monitoring and can be reused on the same patient as long as the adhesive tape attaches without slippage. 1. Clean the sensor site with an alcohol wipe to remove skin oils. See illustration for the recommended site. (Figure (1)) (1) 2. Remove the white paper backing to expose the first of three adhesive ® pads (Figure (2)).
6. SpO2 Monitoring 4. If desired, the sensor cable can be secured to the patient’s clothing or other material by using the clip located on the cable. To open, pinch the sides of the clip; release to close (Figure (4)). (4) 5. ® Connect the OXIMAX MAX-FAST oximetry sensor into the LX-7230N. Verify proper operation as described in the operation manual.
6. SpO2 Monitoring CAUTION Precautions for Use of adhesive sensors, MAX-FAST Do not reuse the sensor on other patients. This is a sterilized product and it is intended for single patient use only. Circulation distal on the sensor site should be checked routinely. The site must be inspected every 12 hours to ensure adhesion, skin integrity, and correct position.
6. SpO2 Monitoring Connecting the Nellcor® SpO2 Sensor to the LX-7230N 1 Insert the SpO2 sensor into the SpO2 input connector on the LX-7230N. SpO2 Sensor 2 Attach the sensor lock as shown in the following illustration to prevent the SpO2 sensor to be disconnected.
7. Measurement Turn ON the power and the measurement starts. Starting Screen When the power is turned ON, the channel number configured on the LX7230N is displayed at the top of the LCD. Make sure whether the channel number on the LCD matches the channel number indicated on the label of the LX-7230N and the channel number configured on the receiving monitor. This screen automatically moves onto the next waveform display screen.
7. Measurement Display Switch The screen (e.g. ECG) can be switched to other selected screens (respiration, pulse, or SpO2, etc.) The LCD display will automatically turn itself OFF after 180 seconds if no operation is done. To restart the LCD display, refer to page 51. When the LCD display is active, press the button to move onto the next screen. The screen will be switched in the following order.
7. Measurement Battery Level Check Check the battery level on the waveform display screen. Battery Symbol Remaining Battery Level Full Getting low but still available Nearly empty Replace the battery. A message that prompts the battery check appears on the screen of the receiving monitor. Waveform Display ECG Display Screen (1) ECG1 waveform, heart rate, pacemaker marker, remaining battery level, and electrode check message are displayed.
7. Measurement Displays the ECG waveform. Displays the heart rate. is displayed in synchronization with the heart rate. Displays the detection marker when the pacemaker pulse is detected. Indicates the measuring lead. Indicates the ECG waveform size displayed on the LCD.
7. Measurement Indicates the remaining battery level. For details of the battery level, refer to page 7. Displays the electrode check “ELECTRODE?” message appears when the ECG electrode is detached. ECG Display Screen (2) ECG2 waveform, heart rate, pacemaker marker, remaining battery level, and electrode check message are displayed. NOTE If a 3-electrode lead cable is used, this screen will not appear. The LCD display will automatically turn itself OFF after 180 seconds if no operation is done.
7. Measurement Displays the ECG waveform. Displays the heart rate. is displayed in synchronization with the heart rate. Displays the detection marker when the pacemaker pulse is detected. Indicates the measuring lead. Indicates the ECG waveform size displayed on the LCD.
7. Measurement Indicates the remaining battery level. For details of the battery level, refer to page 7. Displays the electrode check “ELECTRODE?” message appears when the ECG electrode is detached. Respiration Display Screen Respiration waveform, respiration rate, remaining battery level, and electrode check message are displayed. The LCD display will automatically turn itself OFF after 180 seconds if no operation is done. To restart the LCD display, refer to page 51.
7. Measurement Displays the respiration rate. Indicates the respiration waveform size displayed on the LCD. CAUTION The respiration waveform size setting displayed on the LCD does not interact with the one displayed on the screen of the receiving monitor, because the LX-7230N cannot transmit the setting information of the waveform size to the receiving monitor.
7. Measurement SpO2 Display Screen Pulse wave, pulse rate, SpO2 measurement value, remaining battery level, and probe condition are displayed. The LCD display will automatically turn itself OFF after 180 seconds if no operation is done. To restart the LCD display, refer to page 51. When the LCD display is active, press the waveform display screen. button to move onto the next Descriptions of the Screen The descriptions of contents displayed on the LCD are as follows. Indicates the SpO2 display screen.
7. Measurement Indicates the remaining battery level. For details of the battery level, refer to page 7. Displays messages such as probe off. For details of messages, refer to page 60. SpO2 Enlarged Display Screen Pulse rate, SpO2 measurement value, remaining battery level, and probe condition are displayed. The LCD display will automatically turn itself OFF after 180 seconds if no operation is done. To restart the LCD display, refer to page 51.
7. Measurement Displays the level meter of the pulse wave. Indicate the amplitude level of the pulse wave in 8 steps. Indicates the remaining battery level. For details of the battery level, refer to page 7. Displays messages such as probe off. For details of messages, refer to page 60.
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8. Operation Changing Setup ECG Display Screen (1) In the ECG display screen (1), the ECG waveform size and lead displayed on the LCD of the LX-7230N can be changed. Setting Method How to enter the setup mode: Press and hold the Enter button for 2 seconds in the ECG display screen (1). <> Lead of ECG 1 can be switched when 3-electrode lead cable or 5-electrode (Chest) lead cable is used. Select an appropriate lead by checking the ECG waveform on the LCD.
8. Operation CAUTION The ECG waveform size setting displayed on the LCD of the LX-7230N does not interact with the one displayed on the screen of the receiving monitor, because the LX-7230N cannot transmit the setting information of the waveform size to the receiving monitor. If the ECG waveform size displayed on the screen of the receiving monitor is changed, follow the instruction in the operation manual of the receiving monitor.
8. Operation When changing the size of the ECG waveform on the LCD, the ECG scale will also change. In the left illustration, it can display ECG waveform between -2mV and +2mV. CAUTION The ECG waveform size setting displayed on the LCD of the LX-7230N does not interact with the one displayed on the screen of the receiving monitor, because the LX-7230N cannot transmit the setting information of the waveform size to the receiving monitor.
8. Operation When changing the size of the respiration waveform on the LCD, the respiration scale will also change. In the left illustration, it can display the respiration waveform until 4 of change. CAUTION The respiration waveform size setting displayed on the LCD of the LX7230N does not interact with the one displayed on the screen of the receiving monitor, because the LX-7230N cannot transmit the setting information of the waveform size to the receiving monitor.
8. Operation Restarting the LCD display The LCD display will automatically turn itself OFF after 180 seconds if no operation is done. Press the Enter button or press and hold the button to restart the LCD display. The starting screen with telemetry channel number appears, and then the waveform display screen appears. Pressing the EVENT button Press and hold the EVENT button for 2 seconds to activate the function assigned on the receiving monitor.
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9. Other Setting Items The following settings are available for the LX-7230N depending on the use and condition of the patient. For details of the settings, contact our service representative. Items Time Constant Detection Sensitivity of Pacemaker Pulse Respiration Detection Signal LCD Contrast Transmitter Channel Selection 0.4 sec., 0.1 sec. Default 0.4 sec. Backup Yes Low, Mid, High Mid Yes ON, OFF ON Yes 8 Yes 9501 Yes 8 steps One from the following channels.
9. Other Setting Items Changing the Time Constant The default setting of the time constant is “0.4 seconds”. If a stable monitoring is difficult with excessive change in the baseline due to excessive body motion of the patient or an interference noise, such as AC frequency, by changing the time constant to “0.1 second” the monitoring may become relatively stable. For details of the setting change, contact your local Fukuda Denshi service representative. CAUTION When changing the time constant to “0.
9. Other Setting Items Changing the Detection Sensitivity of the Pacemaker Pulse The default setting of pacemaker pulse detection sensitivity is “Mid”. The “Mid” setting can detect and reject the following pacemaker pulse specified in ANSI/AAMI EC13 standard. Detection/ Rejection of Pacemaker Pulse: a) Pacemaker Pulse without Over/Undershoot: Capable to reject pulses of pulse width 0.1 to 2ms, amplitude ±2 to ±700mV b) Pacemaker Pulse with Over/Undershoot: Rejection is not possible.
9. Other Setting Items Changing the Respiration Detection Signal ON/OFF The default setting of the respiration detection signal is “ON”. The respiration waveform can be detected when the setting of the respiration detection signal is turned “ON”. WARNING If the LX-7230N is used with minute ventilation rate-adaptive implantable pacemaker, the respiration detection signal may cause the pacemaker to pace at its maximum programmed rate.
10. Changing the Transmitter Channel and Group ID Changing the Transmitter Channel The LX-7230N is a transmitter of PLL synthesizer type, and its transmitter channel can be programmed. It can be set up with an arbitrary channel among the channels assigned by the Telemetry Laws (according to each country). For details of the setting change, contact your local Fukuda Denshi service representative.
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11. Troubleshooting List of Displayed messages Transmitter (main unit) Message Cause Faulty SpO2 module. Solution Contact your local Fukuda Denshi service representative. Failed to transmit waveform and value. Faulty EEPROM. Failed to initialize CPU. ECG Message Cause Electrode is off. Solution Check the electrode condition.
11. Troubleshooting SpO2 Message Cause Solution Probe is off. Check the attached condition of the probe. Faulty Probe. Replace the probe with a new one. SpO2 is not Check the attached condition measured correctly. of the probe. Cover the probe with an opaque material to cut off the outside light. Due to excessive body motion, SpO2 is not measured correctly 60 Keep the patient still.
11. Troubleshooting Troubleshooting Make sure of the following. However, if there is no improvement in the phenomenon, contact your local Fukuda Denshi service representative. Transmitter (main unit) Phenomenon Cause Solution Nothing is displayed No battery or wrong Install the battery correctly. on the LCD when the polarity power switch is turned Battery level is Replace the battery with a ON. empty. new one. Nothing is displayed on the receiving monitor screen.
11. Troubleshooting ECG Phenomenon Cause “ELECTRODE?” Lead cable is off. message is displayed. Solution Check the connection between the lead cable and the LX-7230N. Check the connection between the lead cable and the electrode. Faulty Lead cable. Replace the ECG cable with a new one. Electrode is peeling Replace the electrode with a off. new one. Polarization potential of the electrode is too high. ECG waveform contains noise Respiration waveform cannot be measured.
11. Troubleshooting SpO2 Phenomenon SpO2 value is unstable. Cause The probe size is improper. Solution Use a probe, which fit properly. The probe is Attach the probe properly peeling off or is following the instruction. affected by the outside light due to the poor condition Transmitting and measuring LEDs sensor are dirty. Clean both LED sensors from dirt.
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12. Cleaning and Disinfection The Cleaning and disinfection of the LX-7230N, ECG lead cable, and SpO2 probe (sensor) shall be performed as follows. CAUTION Do not sterilize the LX-7230N, ECG lead cable, and SpO2 probe (sensor) in any manners, such as radioactive rays, steam, or ethylene oxide. Cleaning and Disinfecting the LX-7230N Cleaning Clean the LX-7230N using squeezed gauze or an absorbent cotton cloth dampened with alcohol or a neutral cleanser.
12. Cleaning and Disinfection Cleaning the ECG lead cable After using the cable, clean it with neutral detergent or 70% isopropyl alcohol. CAUTION Do not use thinner, toluene, or other organic solvents to clean the cables. Do not pull the cable and do not hold the connector part when cleaning. (It may degrade the cable coating and result in damage. Particularly organic solvents and antiseptic solution such as cresol soap solution will degrade the cable coating.
13. Maintenance and Inspection This section explains the daily checks and periodic checks of the LX-7230N. To ensure safety, reliability, and high performance, a “Daily Check” and “Periodic Check” must be performed. We are not liable for any accident arising from lack of maintenance. CAUTION Do not open the housing or attempt service. The service should be done by Fukuda Denshi or Fukuda Denshi’s representative. Do not allow excessive moisture or cleaning agents into the connectors or inside the equipment.
13. Maintenance and Inspection Daily Check List No. Inspected Date Inspected by Location Device Type LX-7230N S/No. Date of Purchase Items Appearance Battery Compartment Power Supply ECG Connectors ECG Lead cable SpO2 Sensor (Probe) Wireless Channel Transmission Function Display Function Periodic Check Comment 68 Details Visually check for any damage, cracks, chip, peeled label, and loosen screw on the housing. Visually check for the ring condition of the battery compartment lid.
14. Standard and Optional Accessories This section lists the accessories for the LX-7230N. WARNING Use only the accessories, such as ECG Lead cable and SpO2 probe (sensor), specified by Fukuda Denshi for the LX-7230N. Otherwise, the LX7230N cannot deliver its maximum performance and may be damaged, resulting in a safety hazard. CAUTION For quality improvement, specifications are subject to change without prior notice. Standard Accessories No.
14. Standard and Optional Accessories Optional Accessories The following accessories are available as optional for the LX-7230N. Purchase them as required. ECG, Impedance Respiration Measurement AHA color code: Item 70 Model Type ECG Hook Type Lead Cable CMT-01HTH-0.8DA ECG Hook Type Lead Cable CMT-02HTH-0.8DA ECG Hook Type Lead Cable CMT-03HTH-0.8DA ECG Clip Type Lead Cable CMT-01FTH-0.8DA ECG Clip Type Lead Cable CMT-02FTH-0.8DA ECG Clip Type Lead Cable CMT-03FTH-0.
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15. Specification Specification CAUTION For quality improvement, specifications are subject to change without prior notice. Standard Specification Size: 72.0(W) x 98.0(H) x 24.
15. Specification ECG Numbers of Lead Electrode: Numbers of Input Channel: Accuracy of Sensitivity: 3-electrode, 4-electrode, or 5-electrode (Limb+Chest) 1CH(3-electrode) or 2CH 10mm /1mV ± 20% (Display sensitivity on the receiving monitor) ECG Input Impedance: 5M and above Maximum Input Voltage: ±5mV and above Common Mode Rejection Less than 10mVp-p (95dB and above) Ratio: Accuracy of Heart Rate ±10% or ±5bpm, whichever is greater Measurement: HR Display Range: 0, 12 to 300bpm (1bpm step) Frequency 0.
15. Wavelength: Specification Approx. 660nm (Red light) Approx. 900nm (Infrared light) Optical output power: Under 15mW Measurement Response Time: 6 to 7 sec. (Averaging time) Measurement Value Update Rate: 1 second NOTE The SpO2 measurement accuracy is determined based on the values of the root-mean-square (rms) difference between SpO2 readings of the pulse oximeter equipment and values of SaO2 determined with a CO-oximeter, by healthy adult volunteers.
15. Specification Safety General Standard: IEC 60601-1: 1988 +A1: 1991 +A2: 1995 (Medical electrical equipment – Part 1: General requirements for safety) EMC Standard: IEC 60601-1-2: 2007 (Medical electrical equipment – Part 1: General requirements for safety – 2.
15. Specification obtained from simultaneously sampled arterial blood using a laboratory Co-oximeter. Many functional testers and patient simulators have been designed to interface with the pulse oximeter's expected calibration curves and may be suitable for use with pulse oximeters and/or sensors. Not all such devices, however, are adapted for use with the calibration system.
15. Specification Display Description SpO2 measurement Status Probe? Displays when the SpO2 probe is disconnected from the equipment. Sensor? Displays when the SpO2 probe is off from the measuring position or SpO2 cannot be measured normally due to outside light, etc. Motion Displays when the measurement cannot be executed due to an artifact such as body motion.
15. Specification Details of the “ELECTRODE?” Message The following “ELECTRODE?” messages are displayed on the LCD depending on the selected lead cable and lead.
15. Specification List of Setup Items This section lists the available selection, default setting, and backup status for each setup item, which is available for the LX-7230N. Items ECG Lead Display Size of ECG (1) Display Size of ECG (2) Display Size of Respiration Waveform Selection I, II, III ×1, ×1/2 ×1, ×1/2 Default II ×1 ×1 ×1, ×1/2 ×1 Backup Yes Yes Yes Yes For details of the following settings, contact our service representative. Items Selection Default Backup Time Constant 0.4 sec., 0.1 sec.
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